Hi, Laptop Asus N56JR has an IPS screen 15'6 inch (Backlight - 1920 X 1080). My Laptop screen has a damaged polarizer film inside (Back). I know the screen has 2 layer of polarizing film: outside (front) and inside (back), but i don't know how much degrees of polarizing film for each layer. I want to replace polarizer film inside (Back). I see TN display (internet): Positioning the polarizers and alignment layer at 45 degrees (back) and 135 degrees (front). Is this correct? And IPS screent has also same? If you know about this, please give me advice. Thanks.
I found the solution from internet: 45 degree usually for monitor/ laptop/desktop panel (inside used) 135 degree usually for monitor/ laptop/desktop panel (outside used) Large LCD LED TVs screen uses: 0 Degree in front and 90 Degree in the Backs of the TVs. Polarize Film Roll can be cut at any angle you want. Measurement of polarizing film: measurement of screen visibility (length + width):-Size (Longwide) mmmm 45 Degree: 15in ➡ 306.5 X 230 17in ➡ 341 X 273 18.5in wide ➡ 413 X 233 19in wide ➡ 412 X 258 19in ➡ 380 X 304 19.5in ➡ 434.5 X 242 20in wide (16:10) ➡ 446 X 252 21.5in ➡ 479 X 270 22in ➡ 477 X 299 23in (16:9) ➡ 513 X 290.5 24in (16:9) ➡ 535 X 302 135 degree: 20in ➡ 446 X 252 21.5in ➡ 479 X 270 90 Degree: 17in ➡ 341 X 273 21.5in ➡ 483 X 277 24in (16:9) ➡ 540 X 307 32in ➡ 712 X 407 0 Degree: 17in ➡ 341 X 273 19in wide ➡ 412 X 258 21.5in ➡ 479 X 270 22in ➡ 477 X 299 23in (16:9) ➡ 513 X 290 24in wide (16:9) ➡ 535 X 302 32in ➡ 712 X 407 I have just replaced polarizer film inside (Back) 45 Degree, it's working good. I hope this information will be useful to anyone who needs it.
That is true and you are absolutely right. If you know what polarization is and what polarized light is, then it would be good to know that the angles you mentioned when looking from the front 45 degrees and from the backside 135 degrees mean exactly the same thing. In other words, if to specify, the screen is normally viewed at a 90-degree angle, and if you rotate 45 degrees left looking the front from the front (90 - 45 = 45), it is the same if to viewe from the back and rotate 135 degrees to the right. (90 + 45 = 135). But if this film is damaged and interferes with viewing, you do not have to replace it, just remove the broken film and that's all. Of course, in addition to polarizing, the film also protects the surface of the screen, but in reality its function is to direct the reflections of various additional lights away from your eyes. If there is no additional annoying lighting (such as a windowless room and only ceiling or spot lighting), no polarizing film is needed. It's that simple. Ah I forgot, sometimes such displays are also called glossy, semi-matte and matte. It depends what films are used or have not used at all.