High color expression display device and method for adjusting displayed color
AssigneeAu Optronics Corporation
InventorsChun-Chieh Wang, Chun-Liang Lin, Chen-Hsien Liao
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Abstract
A high color expression display device and a method for adjusting the displayed color are provided. The display device includes a backlight source, a transmittance adjusting layer, and a display panel for receiving light from the backlight source. The display panel has a color filter disposed above the backlight source. A CIE standard illuminant C test result of the color filter falls into a predetermined scope. In a transmittance spectrum of the transmittance adjusting layer, an average transmittance at wavelength shorter than 495 nm is smaller than that at wavelength greater than 570 nm.
Claims33
A display device, comprising:
- a backlight source including a plurality of white light emitting diodes;
- a display panel for receiving light from the backlight source, wherein the display panel includes a color filter layer, disposed above the backlight source, for filtering the light of the backlight source, a result of the color filter layer under a CIE standard illuminant C test including:
- 0.135≦Bx≦0.150;
- BY≧16;
- Ry≦0.329;
- and
- Gx≦0.295,
- wherein Bx is x coordinate of blue light obtained from the CIE standard illuminant C test, Ry is y coordinate of red light obtained from the CIE standard illuminant C test, Gx is x coordinate of green light obtained from the CIE standard illuminant C test, BY is a transmittance of blue light;
- and
- a transmittance adjusting layer, disposed above the backlight source, for receiving the light of the backlight source, wherein the transmittance adjusting layer has an average transmittance at wavelength shorter than 495 nm being smaller than that at wavelength greater than 570 nm.
A method for adjusting displayed color of a display device, comprising:
- disposing a backlight source;
- disposing a display panel for receiving light from the backlight source, wherein the display panel includes a color filter layer, disposed above the backlight source, for filtering the light of the backlight source, a result of the color filter layer under a CIE standard illuminant C test including:
- 0.135≦Bx≦0.150;
- BY≧16;
- Ry≦0.329;
- and
- Gx≦0.295,
- wherein Bx is x coordinate of blue light obtained from the CIE standard illuminant C test, Ry is y coordinate of red light obtained from the CIE standard illuminant C test, Gx is x coordinate of green light obtained from the CIE standard illuminant C test, BY is a transmittance of blue light;
- and
- disposing a transmittance adjusting layer above the backlight source to receive the light of the backlight source, wherein the transmittance adjusting layer has an average transmittance at wavelength shorter than 495 nm being smaller than that at wavelength greater than 570 nm.
Dependencies are inferred from the claim text.