How Do You Measure Television Screen Size?

Can I change the screen size on NTSC games to fit PAL?definite you are able to ! All PS3's are region unfastened for video games yet not video clips ! A U.S. sport ought to play on your chum console and vice versa ! notice: whilst the PS3 is region unfastened, North u.s. and Japan use NTSC television standards, or 480i, whilst Europe makes use of chum standards, or 576i. hence, the US PS3 is not configured to preserve the greater ninety six strains of imaging. the answer is easy yet costly: all PS3 titles help 720p, so purchase an HDTV set. good success !------What is the relation between screen size and RAM of devices? Does bigger screens like tablets consume more RAM or is the performance unaffected by screen sizes?Bigger the screen, bigger the count of pixels, bigger the bandwidth required by Audio-Video bus, bigger the number of processing units required, bigger the memory allocation, bigger the Ram required------Display size - WikipediaPhysical size of the area where pictures and videos are displayed On 2D displays, such as computer monitors and TVs, the display size (or viewable image size or VIS) is the physical size of the area where pictures and videos are displayed. The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, usually in inches. It is also sometimes called the physical image size to distinguish it from the "logical image size," which describes a screen's display resolution and is measured in pixels. The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, usually in inches. It is also sometimes called the physical image size to distinguish it from the "logical image size," which describes a screen's display resolution and is measured in pixels.The method of measuring screen size by its diagonal was inherited from the method used for the first generation of CRT television, when picture tubes with circular faces were in common use. Being circular, the external diameter of the bulb was used to describe their size. Since these circular tubes were used to display rectangular images, the diagonal measurement of the visible rectangle was smaller than the diameter of the tube due to the thickness of the glass surrounding the phosphor screen (which was hidden from the viewer by the casing and bezel). This method continued even when cathode ray tubes were manufactured as rounded rectangles; it had the advantage of being a single number specifying the size, and was not confusing when the aspect ratio was universally 4:3. In the US, when virtually all TV tubes were 4:3, the size of the screen was given as the true screen diagonal with a V following it (this was a requirement in the US market but not elsewhere). In virtually all other markets, the size of the outer diameter of the tube was given. What was a 27V in the US could be a 28" elsewhere. However the V terminology was frequently dropped in US advertising referring to a 27V as a 27". This was not misleading for the consumer as the seller had to give the actual screen size by law.Flat panel displays by contrast use the actual diagonal of their visible display size, thus the size is the actual size presented to the viewer in all markets. This means that a similarly specified size of display will be larger as a flat panel display compared with a cathode ray tube display. When the common aspect ratio went from 4:3 to 16:9, the new widescreens were labeled with a W in the US. A screen that is approximately the same height as a 27V would be a 32W. Vizio and other US TV manufacturers have introduced even wider screens with a 21:9 aspect ratio in order to match aspect ratios used in cinemas. In order to gauge the relative sizes of these new screens, the screen aspect must be considered. In a commercial market where multiple aspect ratios are being sold, it will always take two numbers to describe the screen size, some combination of diagonal, aspect ratio, height or width.Set sizes are frequently given as a "class" as screens from different manufacturers will have slight differences in size. However the "class" should be within 1/2" of the actual size. The reasons for the different sizes within a class stem from differences in the manufacturers' equipment. As manufacturers move from one size to another, newer larger sizes must fit on the same size glass, though with fewer displays being cut from it. Some sizes fit well and maximize glass utilization, other sizes fit more poorly and waste glass.As an example, in some cases, increasing the screen size by even 0.1" can cause an LCD manufacturer to go from 12 screens fitting on their glass sheet to 9. This would make them uncompetitive with other screen makers. The resolution of the human eye (with 20/20 vision) is about one minute of arc. For full HDTV resolution, this one minute of arc implies that the TV watcher should sit 4 times the height of the screen away. At this distance the individual pixels can not be resolved while simultaneously maximising the viewing area. So the ideal set size can be determined from the chart below by measuring the distance from where the watcher would sit to the screen in centimeters (or inches), dividing that by 4, and comparing with the screen heights below.At this distance, viewers with better than 20/20 vision will still be able to see the individual pixels. The TV image is composed of many lines of pixels. Ideally, the TV watcher sits far enough away from the screen that the individual lines merge into one solid image. The watcher may sit even farther away and still see a good picture, but it will be a smaller portion of their visual field. Common screen dimensions are listed in the table below (the most common diagonal dimensions in inches as of 2020 are bolded). If the display is not listed, then the following equations can be used.Note that D is the diagonal (in centimeters or inches), W is the width (in pixels), and H is the height (in pixels).

My laptop screen cracked on the inside, still works but where to get it repaired cheap?You can find them on Ebay from $80 to $250 depending on the laptop model, screen size, and screen type/quality. Just search "<your laptop model> lcd screen" and you will get some results. Or you can try vising the Laptop manufacturer's support site and they will often be selling spare/refurbished parts (though these tend to be more expensive than those found on Ebay). --- If you do it yourself, the only cost would be the Screen shipping. However, if you get it done by a "professional," you will need to pay the cost of the screen labor; the total would range from $250 to $400. I am not sure you will be able to find anything much cheaper than that for a repair job. --- Dell provides service manuals for all their computers at their website. Just search "<your laptop model> service guide." Within it, you will find links about how to dismantle the laptop and replace various parts------Should I split a large CSS media queries file into separate files for each screen size?You should split your CSS files based on media queries because CSS files are render blocking. When the browser is constructing your DOM, it has to first wait and load all your CSS files. You will reduce your page load time if some of your CSS files are only loaded based on certain media queries. This also goes for adding async to a JavaScript script tag; ex.: .The DOM does not have to wait for your JS file to load. Only add async if the construction of your DOM does not need any of that JavaScript at onload.------Adjusting sequence square frame size for large screen sizeIf you do not want your video to be up-scaled then you need to output at the native resolution of the screen. The physical size does not matter, what matters is the pixel dimensions.However, if the footage is not shot at the native resolution (and I do not think there are many 14K cameras around) you are going to have to resize it to fit. Whether you do that in your edit, or use whatever mechanism the screen has for up-scaling footage depends on a couple of factors:Best bet: ask whoever is in charge of the screen. For a screen that large there's going to be an AV person who knows what they are doing. Ask around until you find who can give you specs for what you have to deliver.------How do I choose what laptop to buy?A Mac will be more expensive than a PC, but the extra cost may pay off in terms of ease of use and customer support. Screen size is only as important as you want it to be - if you like watching movies or doing twelve things at once, a big screen is nice, but that's about it. 15-inch laptops are standard, 17 is a little large to be carrying around. Hard Drive size is not so important for documents/presentations etc, since they take up very little space, but music and videos will soon add up. 300GB would be enough for me, but if you download lots of movies over iTunes etc you might need more. Your computer's memory decides how many things it will consent to do at once before it slows to a grinding halt. 2GB is quite adequate to run Windows and edit a few documents, but if you edit massive files, play games, or like to do twelve things at once, consider investing in a little more. Note though that memory is very easy to upgrade at a later date, and is a great way of prolonging your computer's life. Processor speeds are impossible to decipher and tend to mean wildly different things (there are many more factors involved in processing than just the bus speed). Unless you want to transcode a lot of videos, a core 2 duo is fairly sufficient (the new core i's are overkill for most things). My favourite PC brand is Dell, mainly because I like their online store ^_^. They also have student discounts, at least in the UK where I am from (but you have to Google to find them ;]). Good luck!

How to choose screen size and screen material?The selection of screen size usually depends on the size of the space and the arrangement and size of audience seats. The following suggestions are provided for your reference: 1. The distance between the bottom of the screen and the ground is about 3 4 feet to avoid blocking the projection screen. 2. The height of the screen shall be at least about 1 / 6 times the distance from the screen to the last row of the auditorium. 3. Select the appropriate picture ratio of 4:3, 16:9 and 1:1 (width: height). For family theater models, such as 720p or 1080p, it is recommended to choose 16:9. The selection method of curtain material the selection of curtain material (material classification according to Da-Lite product classification) must be different according to your projection method, projector type and the planning of different sites. The following information will provide you for reference: the front projection uses Mate White mat white material: it is glass fiber substrate, It is the most widely used curtain under the control of surrounding lights. In addition to providing a wide ideal perspective, it also shows the consistency of the picture and accurate tone presentation. It can be cleaned with clean water or mild soap, with mildew resistance and non continuous combustion. Gain value: 1.0 gain best viewing angle: 120 degrees new high contrast matte white (gray screen) material: it is a glass fiber substrate. In addition to the characteristics of mat white, the surface is added with an optical coating to enhance the black level of the image, but it will not affect the performance of the white level, and enhance the contrast and hierarchy of the picture, It is suitable for DLP or LCD projectors with medium output brightness. It can be cleaned with clean water or mild soapy water. It has mildew resistance and no afterburning. Gain value: 1.1 gain best viewing angle: 100 degrees Glass Beaded pearlescent material: it is a glass fiber substrate, and the uppermost layer is a non planar special uniform optical bead sand surface, which is used to provide more reflection gain, suitable for table or ground projection, and provides a bright picture in the ideal viewing angle, so as to prevent the bead sand from falling, can not be cleaned, and has mildew resistance and nonflammability. Gain value: 2.5gain best viewing angle: 60 high power reinforced pearlescent material: it is a glass fiber substrate. In addition to the advantages of pearlescent material, in order to prevent pearl sand from falling, a protective coating is added on the upper layer, so the surface can be cleaned with clean water or mild soapy water. It is suitable for low brightness projector and suitable for table or ground projection. It has mildew resistance and non continuous combustion. Gain value: 2.8gain best viewing angle: 60 video spectrum pearl material: it provides appropriate gain value for glass fiber substrate and special pearl optical coating surface. It is suitable for hanging projection. It can be cleaned with clean water or mild and soapy water. It has mildew resistance and no afterburning. Gain value: 1.5 gain best viewing angle: 70 silver matte 3D Silver material: it is a glass fiber substrate. Due to the special design of the surface, it has the effect of lens. The light scattered around the projection is greatly reduced, and does not contain dazzling strong light. It is suitable for 3D projection. It can be cleaned with clear water or mild soapy water, with mildew resistance and no continuous combustion. Gain value: 1.3 gain best viewing angle: 60 wide power smooth acrylic material: with high gain and wide viewing angle, it can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. This material is currently used for air pressure rising screen and table screen. Gain value: 2.2gain best viewing angle: 90 degrees Da mat type mat white soft screen: it is an ethylene base. In addition to the characteristics of mat white screen, it can be used for folding collection. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 1.0gain best viewing angle: 120 degrees new high contrast Da mat soft screen: it is a vinyl base and can be used for folding collection. In addition to the characteristics of similar mat white, it also adds an optical coating to enhance the black level to increase the contrast and hierarchy of the projection picture, which is especially suitable for film playback, Use with LCD, DLP or D-ILA projectors with high brightness output. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 0.8gain best viewing angle: 90 degrees pearl surface soft curtain: it is a vinyl base, which can be used for folding collection. The surface is a smooth pearl material outer layer, which provides high gain but does not affect the image quality or resolution. It can be cleaned with clean water or mild fat soap water, which has mildew resistance and non continuous combustion. Gain value: 1.5gain best viewing angle: 80 degrees Cinema Vision film field surface soft screen: it is an ethylene base, which can be used for folding collection to provide consistent images without tone deviation. It can be cleaned with clean water or soapy water, with mildew resistance and non continuous combustion. Gain value: 1.3gain best viewing angle: 90 degrees High Contrast Cinema Vision high contrast film field of view surface (gray screen) soft screen: it is an ethylene base and can be used for folding collection. In addition to the characteristics of soft screen on film field of view surface, it also adds an optical coating to enhance the black level, but will not affect the performance of white level, In order to increase the contrast and hierarchy of the projection picture, it is especially suitable for the playback of films. It can be used with LCD or DLP projectors with medium brightness output. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 1.1gain best viewing angle: 100 degrees new High Contrast Cinema Perf high contrast sound permeable film field of view surface (gray screen) soft screen: it is an ethylene base and can be used for folding collection. In addition to the characteristics of high contrast film field of view surface (gray screen) soft screen, the surface is added with special sound permeable treatment, It is suitable for the site planning with speakers at the back of the screen. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 1.1gain best viewing angle: 100 degrees dual vision semi transparent white surface soft curtain: it is an ethylene base, which can be used for folding collection, and can be used for front projection or rear projection. In addition to providing a wide viewing angle, the image also shows consistency and no tone deviation. It can be cleaned with clean water or mild soapy water, with mildew resistance and non combustible. Gain value: 1.0gain best viewing angle: 100 degrees new silver vision 3D Silver soft screen: it is an ethylene base and can be used for folding collection. In addition to the characteristics of silver matter 3D Silver material, it can also be used for folding collection. It can be cleaned with clean water or mild soapy water, with mildew resistance and non combustible. Gain value: 1.5gain best viewing angle: 50 degrees audio vision sound transparent soft screen: it is a vinyl base and can be used for folding collection. In addition to the characteristics of similar seat white, the surface is added with special sound transparent treatment, which is suitable for the site planning with sound setting behind the screen. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 1.0gain best viewing angle: 100 degrees new high contrast audio vision high contrast transparent (gray screen) soft screen: it is a vinyl base and can be used for folding collection. In addition to the characteristics of high contrast white (gray screen) soft screen, the surface is added with special sound transmission treatment, which is suitable for the site planning with sound setting behind the screen, It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion. Gain value: 0.8gain best viewing angle: 90 degreesSelection and use of rear projection screen (material classification according to Da-Lite product classification):It is an ethylene substrate with high light transmittance and low reflectance, providing color consistency and image contrast. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion.Gain value: 1.8gain best viewing angle: 60 degreesIt is an ethylene substrate with high light transmittance and low reflectance. Due to its special optical coating, it provides higher image contrast than Da tex. it is suitable for today's projectors with high brightness output. It can be cleaned with clean water or mild soapy water. It has mildew resistance and non combustible.Gain value: 1.0gain best viewing angle: 80 degrees hard backlight screen with optical outer layer:It is a special white surface material, which is recommended to be used in an environment where the surrounding light can be controlled. In addition to providing a wide perspective, it can show consistent and sharp images without tone deviation. It is especially suitable for film projection. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion.Gain value: 1.0gain best viewing angle: 110 degreesIt is a gray surface material, which is recommended to be used under the control of surrounding light to show contrast and color consistency, especially for high-resolution projection. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion.Gain value: 1.0gain best viewing angle: 70 degreesIt is a gray surface material with moderate reflection gain and viewing angle. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion.Gain value: 1.3gain best viewing angle: 68 degreesIt is a gray surface material, which is recommended to be used under the control of the surrounding light. Although it is not as wide as da-100, it does have a high reflection gain. It can be cleaned with clean water or mild soapy water, which has mildew resistance and non continuous combustion.Gain value: 1.5gain best viewing angle: 64 degreesIt is gray surface material, suitable for site planning with small viewing angle but moderate reflection gain. It can be cleaned with clean water or mild soapy water, with mildew resistance and non continuous combustion.Gain value: 1.8gain best viewing angle: 60 degreesIt is a gray surface material with high reflection gain. It is suitable for use when the surrounding brightness is uncontrollable. It can be cleaned with clean water or mild soapy water. It has mildew resistance and no afterburning.Gain value: 2.3gain best viewing angle: 50 degreesIt provides uniform reflection gain for dark surface materials, especially suitable for computer data projection. The special optical outer layer can eliminate the influence of surrounding light to maintain high contrast. It can be cleaned with clean water or mild soapy water, with mildew resistance and non sustainable combustion.Gain value: 1.0gain best viewing angle: 48 degrees

It is easy to take the quality of laptop for granted. But when you consider that you probably spend more time using your laptop than any other device or tool, you realize that the screen you stare at every day is a vital part of your computer system.The laptop screen size is one of the first things that is worth to choose before considering other laptop parameters. As a matter of fact, screen size is a key factor in the laptop's overall performance, size, and weight. The laptop screen size also is one of the most important factors when it comes to how long your battery is going to last. The most popular laptop screen diagonal sizes range from 12 to 17 inches. The most popular screen resolutions are 1024 x 768, 1280 x 800, 1280 x 1024, 1680 x 1050, and 1440 x 900.Some people would never consider any laptop below a 14.1-inch screen. The laptops with 17-inch screen or even bigger are not so convenient for traveling. However, they combine the power of a desktop and the benefits of a laptop (that is why some people call them as desktop replacements). The battery life is short for such big laptops. Another disadvantage is that these laptops may be too heavy and too big.What screen resolution is optimal? A higher screen resolution reduces the size of items on your screen and increases the relative space on your desktop. But on the other hand, you may feel uncomfortable if fonts are too small to read a text. Another parameter is aspect ratio (the relative numbers of horizontal and vertical pixels). Traditional screens built with 4:3 aspect ratio. For example, a native resolution of 1280x1024 indicates an aspect ratio of 5:4, which is the most used format on 17" and 19" LCD monitors in the recent years. New wide-screen monitors may use almost 2:1 ratio. Wide-screen monitors use a special aspect ratio control to resolve the problem of "unnatural" displaying video with different formats. Normally, a native resolution should allow displaying without any distortion. The best way to find the perfect resolution that is optimal for you and your screen is to try different settings.Most people like the laptops with 14-inch or larger LCD screens with preferred Windows resolution of 1,024x768. These laptops are not too heavy. They are prone to have a long battery life and charge-cycle capability (run time more than several hours). Also 14-15-inch laptops are the most reasonably priced. The experienced computer users also consider this choice as the best compromise between viewable area and overall portability.If you prefer to have the laptop screen with size less than 15-inch, it could be reasonable to use an internal display only when you are on the road. When you at your desk, your laptop can be connected to an external monitor (for example, with a spacious 19-21-inch screen) for better view and more professional works. At desk also it could be good to use an external ergonomic keyboard and mouse (that are connected to laptop).

1. All the companies that make GPS units for both the car and the independents all use the same mapping systems..... 2. The Garmin Streetpilot 7200 has a 7-inch screen and runs between $500.00 to $1100.00 dollars. 3. The Kenwood DNX7100 has a 7-inch screen but it runs between $899.99 to $1,399.99 depending on which store you buy it from.1. Is there anywhere I can get dual display screen savers for 100% free?The Radar Screensaver is a present day and outstanding screensaver which, is in a position to reveal your computer screen right into a demonstrate screen of the stunning radar watching the skies, seas, and close to-Earth area. once you've 2 or extra computer screen instruments linked on your pc, you would be in a position to configure it to reveal similar or diverse circumstances on diverse reflects. this can turn your workplace into something like genuine airspace statement submit.2. what would make your computer freeze up and display a screen with lines on it?A virus or spyware. It could also be drivers for your video card. If that does not help try using AVG Anti-Virus, Spybot S&D and Ad-Aware to remove any viruses or spyware you may have. Good luck!3. Can no display on the screen mean a dead CMOS battery?It's not the battery. If the battery was dead it would not stop the computer booting up. It just would not save the BIOS settings so they would revert to default everytime you restart the computer. If even the on-board graphics are not working then there is something else causing the problem. Disconnect everything from the motherboard except the memory and processor. Then re-seat the memory (remove it and plug it back in to make sure its in properly blow away any dust that has built up). Next connect the screen to the on-board graphics and turn the computer on. If you get absolutely no output on the then there is a good chance the motherboard has had it. If you do get some output and the computer starts to boot, turn it off and re-connect things like disk drives and cards one by one to find out what was causing the problem. Either way a new CMOS battery is not the answer.4. what is the best case to protect my display screen on my droid?The Otterbox Defender for the Incredible 2 will be the most durable case for a variety of reasons. -It has a built-in screen protector so your screen has an extra layer of protection from not only scratches but the impact of drops as well. -The shell is made of a polycarbonate plastic that is extremely strong, durable, and lightweight. -It has an extra layer of silicon molded around the outside for extra impact protection. I've had several people tell me they've ran their otterbox over with a car and the phone was still okay. I've also had a firefighter tell me he ran his over with a firetruck and it still survived. Those things are heavy! Finally, I had someone who ran theirs over with a crane and they claimed the phone still functioned despite the screen breaking and otter case breaking. So basically a crane may be the limit. Also, the Otterbox case comes with a one year manufacturor's warranty. Go to Otterbox.com to order one! The commuter series is good too but it wo not be as protective as the defender series. Regards5. can't get to the display screen of my cell phone?Have you recently gotten your phone wet?... either way yes, when I worked for Verizon Wireless, our first step of troubleshooting would be to take out the battery for about 1 minute, then try to power it on if that does not work, you should call your provider, from verizon that is 611 from ur phone. but again it sounds like it might have gotten wet, not necessarily dropping in water, if you have it in the bathroom while you shower it can get condensation in it, or if it is by the sink when running water it can get splashed. Good luck6. What can I use to clean my laptop display screen?microfiber cloth LCD cleaning solution.

key word:LED, brightness, display1 How to calculate the display size1. Calculation method of indoor display screen(1) Give the specific data of the screen (length, width and area)a. Example: the specification of the screen is 5 (refers to the diameter of pixels) screen, 5.8m long and 2.6m wide.b. First, be clear The technical parameters of 5 screens and the specification of unit board are 488 244mm, unit board resolution 64 thirty-twoc. Calculate the number of unit plates used.Number of plates for screen length or width = pre-made screen length or width length or width of unit plateNumber of boards for screen length: 5.8m 1000488=11.8912Number of plates for screen width: 2.6m 1000244=10.6511d. Calculate the actual screen size.Actual screen length or width = length or width of unit board Number of blocks for screen length or widthe. Screen area: 5.856 2.684 = 15.72 (M2)Note: generally, the external frame size of the cleaning screen is 5-10cm on each side based on the screen size.f. Screen resolution = number of boards used for the screen Resolution of unit plate(2) Only the area of the screen is given, not the length and width.a. Example: make a screen with an area of 9 . The specification of the screen is 5 (refers to the diameter of the pixel).b. If we only give the area, length and width, we have to calculate it ourselves. It can be calculated in the ratio of length to width of 4:3 or 16:9. This picture effect is good. (take 4:3 as an example)c. The theoretical screen length is: length = (area 12) square root fourWidth = (area 12) square root 3, i.e. length = 3.46M, width = 2.60Md. The length and width have been calculated. See the example in (1) for the calculation below.2. Calculation method of outdoor display screen(1) Give the specific data of the screen (length, width and area)a. Example: the outdoor full-color screen of P20 is about 10m long and 6m wideb. First of all, it is clear that the specification of the unit box (length and width of the box) is 1280 960mm, resolution 64 forty-eightc. Calculate the number of boxes.Number of boxes for screen length or width = pre-made screen length or width length or width of unit boxNumber of boxes for screen length: 10M 10001280=7.81238Number of boxes for screen width: 6M 1000960=6.256d. Calculate the actual screen size.Actual screen length or width = length or width of box Number of boxes for screen length or widthe. Screen area: 10.24 5.76 = 158.9824 158.98 (M2)f. Resolution of screen = length and width of box Length and width of box = (64) 8 48 6(2) Only the area of the screen is given, without length and widtha. Example: if you make a P20 outdoor full-color screen, the area is about 50 square meters.b. If we only give the area, length and width, we have to calculate it ourselves. It can be calculated in the ratio of length to width of 4:3 or 16:9. This picture effect is good. (take 4:3 as an example)c. The theoretical screen length is: length = (area 12) square root 4 width = (area 12) square root 3, i.e. length = 8.16m, width = 6.12md. The approximate length and width have been calculated. For the next calculation, refer to example (1).2 Brightness calculation method of display screenTaking the full-color screen as an example, the balance ratio of red, green, blue and white is usually 3:6:1Brightness of red LED: brightness (CD) / m2 points / m2 0.3 (white balance ratio accounts for 30%) 2Brightness of green LED: brightness (CD) / m2 points / m2 0.6 (white balance ratio accounts for 60%)Brightness of blue LED: brightness (CD) / m2 points / m2 0.1 (white balance ratio accounts for 10%)(1) Calculate the brightness of a single tube with the known brightness of the whole screenFor example: 2500 dots per square meter density, 2R1G1B, 5000 CD / m2 brightness requirement, then:The brightness of red LED is 5000 2500 0.32=0.3cd=300mcdThe brightness of green LED is 5000 2500 0.6=1.2cd=1200mcdThe brightness of blue LED is 5000 2500 0.1=0.2cd=200mcd(2) Calculate the brightness of the whole screen with known single tube brightnessFor example, take p31.25, Riya tube as an example.Main tube core specifications of HSM display screen are red and greenHsm-ph-a (Riya) 180-440mcd 1020-2400 MCDBecause white balance and brightness ratio Red: Green: blue = 3:6:1; The ratio of white balance is matched with the brightness of green tube to other tubes. Therefore, it is as follows:From the Red: Green = 3:6, it can be seen that the brightness of the green tube is twice that of the red tube, that is, the brightness of the red tube is 2400 (blue) 2 = 1200mcd. Because there are 2 red tubes in the four tubes of red, green and blue, the brightness of a single red tube is 1200 2 = 600mcd.From the green: blue = 6:1, the brightness of the green tube is 6 times that of the blue tube, that is, the brightness of the blue tube is 2400 (blue) 6 = 400mcd, because one luminous pixel = 2 red tubes 1 green tube 1 blue tube;That is, the brightness of a pixel = 600 (red) 2 2400 (green) 400 (blue) = 3400mcd = 3.4cdBrightness per square meter = brightness of 1 luminous pixel Pixel density per square meter (number) = 3.4cd one thousand and twenty-four(number of pixels) = 3482cd. Based on the light loss of 20%, the actual luminous brightness shall be 2785.28cd.

It is reported that Apple plans to use cheaper LCD screens on most iPhone models next year, while delaying the full conversion to high-tech organic light emitting diode (OLED) screens, which also reflects consumers' price sensitivity.According to the Wall Street Journal, apple is expected to launch an LCD model and two OLED models this fall, and the LCD model is expected to account for most of its iPhone sales. It is expected that Apple will continue to use LCD next year, which is completely inconsistent with the previous report of a complete transition to OLED.Apple announced in March that it was testing its internal microled screen.Apple's decision to insist on using cheaper LCD screens has brought more uncertainty to its screen suppliers; In addition, Apple's decision to produce its own screen endangers the interests of many suppliers.Since apple is not expected to use these products in its OLED screen, the shares of Apple's three LCD suppliers, including sharp, LG display and Japan display, have fallen sharply in the past year. Subsequently, when it was revealed in March that Apple was already testing its microled screen, the shares of many display suppliers, including Samsung, sharp and LG display, fell again. This also damages the interests of general display and Synaptics. After reports showed that Apple would use more LCD screens than expected, the share price of general display company, which provides OLED display materials, began to fall.The Wall Street Journal pointed out that Apple's decision to postpone the implementation of OLED screens does not necessarily bring opportunities for LCD suppliers. For example, LG display has planned to invest in OLED screens.Apple has been facing the problem of supply shortage in the past. If suppliers have to change their production plans, Apple may face supply shortage again. It is reported that Japan display raised $320 million in April to meet the expected demand for its advanced LCD.According to recent reports, Apple has communicated its transformation plan to its suppliers, including plans to reduce parts procurement from suppliers by nearly 20% this year. At the same time, the uncertainty of the continuous expansion of Apple's supply chain will also make the new iPhone more expensive than ever.

It is reported that Apple plans to use cheaper LCD screens on most iPhone models next year, while delaying the full conversion to high-tech organic light emitting diode (OLED) screens, which also reflects consumers' price sensitivity.According to the Wall Street Journal, apple is expected to launch an LCD model and two OLED models this fall, and the LCD model is expected to account for most of its iPhone sales. It is expected that Apple will continue to use LCD next year, which is completely inconsistent with the previous report of a complete transition to OLED.Apple announced in March that it was testing its internal microled screen.Apple's decision to insist on using cheaper LCD screens has brought more uncertainty to its screen suppliers; In addition, Apple's decision to produce its own screen endangers the interests of many suppliers.Since apple is not expected to use these products in its OLED screen, the shares of Apple's three LCD suppliers, including sharp, LG display and Japan display, have fallen sharply in the past year. Subsequently, when it was revealed in March that Apple was already testing its microled screen, the shares of many display suppliers, including Samsung, sharp and LG display, fell again. This also damages the interests of general display and Synaptics. After reports showed that Apple would use more LCD screens than expected, the share price of general display company, which provides OLED display materials, began to fall.The Wall Street Journal pointed out that Apple's decision to postpone the implementation of OLED screens does not necessarily bring opportunities for LCD suppliers. For example, LG display has planned to invest in OLED screens.Apple has been facing the problem of supply shortage in the past. If suppliers have to change their production plans, Apple may face supply shortage again. It is reported that Japan display raised $320 million in April to meet the expected demand for its advanced LCD.According to recent reports, Apple has communicated its transformation plan to its suppliers, including plans to reduce parts procurement from suppliers by nearly 20% this year. At the same time, the uncertainty of the continuous expansion of Apple's supply chain will also make the new iPhone more expensive than ever.

Led transparent screen is a popular subdivision screen in the LED field in recent years. We often see the figure of transparent screen whether it is glass curtain wall, glass window or shopping mall. As one of the high-end display products, the price problem of the original transparent screen makes many users can only wait and see from a distance.With the rapid development of LED transparent screen, its price has also decreased significantly to the acceptable range of users, and various spacing and special-shaped display products emerge in endlessly. Transparent screen is gradually emerging in the commercial display field because of its unique display style.Scientific and technological progress is the core of social development and the first productive force. The transformation and upgrading of science and technology has not only greatly improved the modern production capacity of enterprises, but also further improved human vision in social development. In recent years, with the strong support of the construction industry in big cities, the glass curtain wall area of commercial buildings has reached a new peak. In this regard, led transparent screen manufacturers have made major technical upgrades to the transparent display scheme of large-area glass curtain wall. As a provider of indoor and outdoor LED transparent screen display solutions, Shenzhen Jingang vision is also very happy to contribute to our strength under the mainstream of this market.In order to expand the scope of commercial display application market, we continue to integrate new technologies and introduce various innovative technologies, products and solutions to the market. In recent years, led transparent screen solutions have become more and more common due to the use of advanced technology and most market participation. This popularity has also prompted the outbreak of urban commercial exhibition industry, which is also due to the continuous improvement of infrastructure and the rapid development of urbanization.When it comes to transparent screens, the market segments are relatively broad, and the market segments are based on products, technologies, components, display types, screen sizes and application scenarios. Based on various segments, led transparent screen can help enterprises choose growth niche market and strategic development, and determine the difference between the core application field of products and the target market.

Principle of touch screen capacitance screenTouch screen is the most friendly computer user interface at present. It is more and more widely used in consumer electronic products. The touch detection device and touch screen controller are good. The mechanical structure of the detection device is damaged in the process of touch screen device, resulting in the decline of touch accuracy and shortening of service life of the touch screen; In addition, the cost of commonly used capacitive and resistive touch screens is relatively high. Inductive touch screen can avoid damage to the touch detection device during touch and prolong the service life of touch screen products.The working principle of inductive touch screen, as well as the hardware circuit and part of the program design of the controller, all of the controller circuits have passed the verification. The non-direct contact touch of inductive touch screen avoids the damage to the touch detection device, prolongs the service life of the whole touch control system, and the repetition accuracy and touch sensitivity of touching the same point meet the expected design requirements.The capacitive induction touch screen is not affected by dirt, dust or oil stains, but it will be affected by the surrounding environment to varying degrees because it adopts the electric field coupling principle. At the same time, the capacitive induction touch screen has serious drift phenomenon.What are the application areas of touch screenTouch screen has become a hot spot in the market. In the market, shopping malls, hotels and other places, it is still dominated by smart phones. The growth momentum of the smartphone market slowed down and entered a period of gentle development. The application of touch screen outside mobile phones, such as automotive electronics, retail, medical treatment, public facilities, leisure and entertainment, will promote the rapid growth of touch screen market.In addition to applications in large fields, touch screens can be innovated in subdivided fields. In the field of "pen writing tablet", innovate the touch screen.The products have been extended to tablet with pen writing function, e-book, all-in-one machine, electronic whiteboard, etc. And the pen and hand can be used at the same time. When one hand is touching, the pen can also write at the same time.The traditional materials of capacitive touch screen are ITO, metal grid, nano silver wire, carbon nanotube, conductive polymer, graphene, etc. Metal mesh and nano silver wire have more supporters. Both materials are metals (silver or copper) and their conductivity is better than ITO.