2015年5月20日星期三

True Life LCD screens

Dell TrueLifeTM LCD screens for laptop computers are one of the most recently introduced advances in notebook LCD screen technology. This technology has one much praise with its high-gloss, sharp contrast finish. We are confident that once you have seen this technology with your own eyes, you will not believe the difference it makes. It is even more impressive for DVD and gaming uses. 
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ScreenTek offers high-gloss, anti-reflective TrueLifeTM style laptop screens under our own PixelBright name. Our PixelBright products and services can accommodate the following needs: 

If you have damaged your Dell TrueLifeTM laptop LCD screen and would like to replace it, 
If you have damaged your traditional Dell laptop screen and would like to replace it with an upgraded TrueLifeTM screen with anti-reflective technology, or 
If you have a perfectly working traditional laptop screen and would like to have your screen upgraded with an TrueLifeTM anti-reflective polarizer. Our LCD screen upgrades require you to send us your laptop so that we can upgrade your LCD screen in a Class 100 (US Fed Std 209E) / ISO Class 5 clean room environment. 
Contact us for more information. 
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What is Dell TrueLifeTM? 

Dell TrueLifeTM Background 

The TrueLifeTM brand is Dell’s marketing name for its recently introduced anti-reflective LCD screen technology (anti-reflective technology). 

This technology was initially introduced to the Japanese market in Fujitsu notebook computers in the beginning of 2003 and later brought to the mainstream via Sony’s marketing of its own XBRITETM brand. This technology was an instant success because of its super crisp images and its vibrant colors. This new anti-reflective technology has sharper contrast (the difference between the deepest black and lightest white pixels), produces clearer and more colorful images, absorbs most external ambient light and has wider viewing angles than traditional notebook screens. Touch Screen Digitizer Glass Panel For TD025TTEA3 828N1AA1301385

Anti-reflective LCD screen technology is not a proprietary technology of Dell. Moreover, LCD displays installed in Dell Inspiron, Latitude and Precision models are not manufactured by Dell. Dell, like other laptop makers, purchase LCD screens from LCD screen manufacturers. It is these LCD screen manufacturers that produce anti-reflective LCD technology. Dell merely procures and installs both traditional and anti-reflective LCD screens in their Dell line of laptop models. Those Dell laptop models using anti-reflective technology are marketed under the Dell TrueLifeTM name. 

Furthermore, the anti-reflective technology marketed as Dell TrueLifeTM is identical to the anti-reflective technology being marketed as Sony XBRITETM, Toshiba TruBrightTM and HP Compaq BrightView, etc. 

The Technical Stuff 
(Click here for a more detailed explanation including diagrams) 

All laptop screens have a polarizer which is a thin sheet of film laminated to the outside layer of glass of the laptop screen used to filter light waves produced by the LCD screen to create an image. The difference between a traditional notebook screen and an anti-reflective notebook screen is the type of polarizer film. Tomtom tom XL IQ Routes 茅dition LCD Screen Display Ecran Tactile

The polarizer of a traditional notebook screen has a rough matte finish. This rough matte finish is not visible to the naked eye. The matte finish causes outer ambient light to disperse or reflect off of the traditional polarizer at different angles which reduces the intensity of the glare reflected directly back to the observer’s eye. This ambient light reflection is reduced in intensity due to the diffusion of light, however, the drawback is the reflection shows up as a large hazy object which obstructs the images on the screen. Other side effects include distorted images, a lower contrast ratio, inferior viewing angles, less vibrant colors and eye fatigue. 

The polarizer of an anti-reflective Dell TrueLifeTM screen has a smooth high-gloss finish which has been chemically-treated. The chemically-treated finish of the polarizer reduces the reflection of external ambient light by absorbing much of the external light instead of dispersing it at different angles. Since the external light is mostly absorbed instead of being reflected at different angles, the polarizer does not need a rough matte finish and therefore a smooth finish can provide crisp, brilliant-colored images with the most direct internally derived light from the LCD. 
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In general, the observer sees light from two light sources: 1) light produced by the LCD itself and 2) external ambient light which is reflected off the surface of the LCD. The objective of an anti-reflective polarizer is to improve the image quality generated by the LCD while minimizing the reflection of external ambient light. 

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