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NH Film
NH Film Viewing Angle Compensator Film for TFT LCDs
A Beautiful Image Should Be Beautiful from Every Angle
NH Film possesses a hybrid-nematic structure of liquid crystalline polymers in which the tilt angles of the polymers vary gradually relative to the normal orientation of the film. The film greatly improves the viewing-angle performance, which is a problem with conventional thin film transistor (TFT) LCDs. The film maintains the contrast and suppresses the color changing and the gray-scale inversion, so it keeps the images natural and recognizable even when viewed from oblique angles.
In transflective displays, NH Film functions as both a viewing angle improver and a nematic sheet, so it boosts the panel performance while reducing the number of optical sheets.
Transmissive TFTs
How NH Film Works
Structure
Features
| Optical characteristics |
* Wide viewing angle * Left-right color change: Small * Left-right brightness change: Small |
|---|---|
| Reliability | * 85 deg. C dry, 60 deg. C at 90% RH x 500 hrs OK (NOC test) |
| Thickness | * 95 microns (Films as thin as 15 microns are now under development.) |
Transflective TFTs
How Transflective TFTs work
Structure
Features
| Optical characteristics |
* Wider viewing angle with the same front-viewing characteristics as two commercial films * Greatly improved gray-scale characteristics (suppress the inversion) |
|---|---|
| Reliability (heat resistance) |
* 85 deg. C dry, 60 deg. C at 90% RH x 500 hrs OK * Heat resistance at least as good as for other commercial products (NOC tests) |
| Thickness | * 95 microns We have also begun mass production of film as thin as 15 microns. |