Backlight module and method for calculating viewing angle for unknown backlight module
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorBo Hai
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Abstract
The present invention provides a backlight module and a method for calculating viewing angle for an unknown backlight module. In the present invention, brightness-viewing angle values of the unknown backlight module can be calculated according to the color saturation-viewing angle data of the unknown backlight module at specific viewing angles, and thus are taken to deploy the brightness-viewing angle values of a produced backlight module to be as the same as the brightness-viewing angle values of the unknown backlight module.
Claims10
A method for calculating viewing angle of an unknown backlight module, comprising steps of:
- obtaining color saturation-viewing angle data Dc(i) measured at specific viewing angles for the unknown backlight module;
- measuring the color saturation-viewing angle data Dc'(i) and brightness-viewing angle values A(i) for a known backlight module at the specific viewing angles;
- calculating a ratio x of the color saturation-viewing angle data Dc'(i) of the known backlight module to the color saturation-viewing angle data Dc(i) of the unknown backlight module for each of the specific viewing angles, where x=Dc'(i)/Dc(i);
- calculating a ratio y of the viewing angle of the known backlight module to the viewing angle of the unknown backlight module based on the ratio x, for each of the specific viewing angles;
- and
- obtaining the brightness-viewing angle values Z of the unknown backlight module at corresponding angles for the specific viewing angles by multiplying the brightness-viewing angle values A(i) of the known backlight module by the ratio y, where Z=A(i)*y.
Dependencies are inferred from the claim text.