Display apparatus and its method for regulating color resistance of color filter

A color filter and display technology, which is applied to the display device with a white light diode backlight module and the field of adjusting the color resistance of the color filter, which can solve problems such as color failure to meet requirements, and achieve the effect of improving color performance

Active Publication Date: 2009-04-08
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a method for adjusting the color resistance of color filters in a display device, so as to correct and improve the problem that colors such as red, green and blue do not meet the requirements in the display screen of the display device

Method used

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  • Display apparatus and its method for regulating color resistance of color filter
  • Display apparatus and its method for regulating color resistance of color filter
  • Display apparatus and its method for regulating color resistance of color filter

Examples

Experimental program
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no. 1 example

[0039] In this embodiment, the emission spectrum BL(λi) of the white light-emitting diode is between 430 nanometers (nm) and 470 nanometers (nm), 490 nanometers (nm) and 570 nanometers (nm) and 600 nanometers (nm) at wavelength λi. It has a relatively large brightness peak between nanometers (nm) and 680 nanometers (nm); wavelength λ1 can be 595 nanometers (nm); wavelength λ2 can range between 620 nanometers (nm) and 680 nanometers (nm) between (in the red light band). At this time, the emission spectrum BL(λi) and the transmission spectrum CF(λi) satisfy the following specific relationship:

[0040] Y(λ1)=CF(λ1)×BL(λ1);

[0041] MAX(λ2)=MAX[CF(λ2)×BL(λ2)];

[0042] 0.55≤Y(λ1) / MAX(λ2)≤1;

[0043] That is, the product Y(λ1) of the transmission spectrum CF(λ1) and the emission spectrum BL(λ1) at a wavelength λ1 of 595 nanometers (nm), that is, Y(595), and the transmission spectrum CF(λ2) and emission The maximum value of the product MAX(λ2) of the spectrum BL(λ2) when the wa...

no. 2 example

[0048] In this embodiment, the emission spectrum BL(λi) of the white light-emitting diode is between 430 nanometers (nm) and 470 nanometers (nm), 490 nanometers (nm) and 570 nanometers (nm) and 600 nanometers (nm) at wavelength λi. It has a relatively large brightness peak between nanometers (nm) and 680 nanometers (nm); wavelength λ1 can be 595 nanometers; wavelength λ2 can range between 490 nanometers (nm) and 570 nanometers (nm) (green in the light band). At this time, the emission spectrum BL(λi) and the transmission spectrum CF(λi) satisfy the following specific relationship:

[0049] Y(λ1)=CF(λ1)×BL(λ1);

[0050] MAX(λ2)=MAX[CF(λ2)×BL(λ2)];

[0051] 0.55≤Y(λ1) / MAX(λ2)≤1;

[0052] That is, the product Y(λ1) of the transmission spectrum CF(λ1) and the emission spectrum BL(λ1) at a wavelength λ1 of 595 nanometers (nm), that is, Y(595), and the transmission spectrum CF(λ2) and emission The maximum value of the product MAX(λ2) of the spectrum BL(λ2) when the wavelength λ2...

no. 3 example

[0056] In this embodiment, when the white balance color temperature range of the display device is between 5,000K and 8,500K; Between, between 490 nanometers (nm) and 570 nanometers (nm), and between 600 nanometers (nm) and 680 nanometers (nm), there is a relatively large brightness peak; the wavelength λ1 can be 595 nanometers (nm); the wavelength The range of λ2 may be between 430 nanometers (nm) and 470 nanometers (nm) (in the blue light band). At this time, the emission spectrum BL(λi) and the transmission spectrum CF(λi) satisfy the following specific relationship:

[0057] Y(λ1)=CF(λ1)×BL(λ1);

[0058] MAX(λ2)=MAX[CF(λ2)×BL(λ2)];

[0059] 0.25≤Y(λ1) / MAX(λ2)≤1;

[0060] That is, the product Y(λ1) of the transmission spectrum CF(λ1) and the emission spectrum BL(λ1) at a wavelength λ1 of 595 nanometers (nm), that is, Y(595), and the transmission spectrum CF(λ2) and emission The maximum value of the product MAX(λ2) of the spectrum BL(λ2) when the wavelength λ2 is between...

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Abstract

The invention relates to a method for regulating the color resistance of a color filter and a display device using the method. The method comprises that a white light emitting diode is supplied to emit light with the wavelength of lambda i so as to be provided with lighting frequency spectrum (BL lambda i); a color filter is supplied and comprises a plurality of red color resistances, green color resistances and blue color resistances as well as has penetration frequency (CF lambda i); the paint composition or concentration of the red color resistance is regulated so as to improve the penetration efficiency of the wavelength lambdai in the range between 580 nanometers and 600 nanometers; the paint composition or concentration of the green resistance is regulated so as to improve the penetration efficiency of the wavelength lambda i in the range between 570 nanometers and 590 nanometers. The display device of the invention and the method for regulating the color resistance of a color filter can improve the color presentation of displayed pictures so that the chrominance of the displayed pictures can reach standard specification.

Description

technical field [0001] The invention relates to a display device and a method for adjusting the color resistance of a color filter, and in particular to a display device with a white light diode backlight module and a method for adjusting the color resistance of a color filter. Background technique [0002] As the technology of light-emitting diodes (LEDs) is becoming more and more mature, and has the advantages of power saving and small size, light-emitting diodes are gradually used in the backlight modules of liquid crystal displays as backlight sources, so that liquid crystal displays can It is lighter and thinner, and the packaging process during manufacture can be simpler. [0003] In the case of using a white LED as a backlight source, the white light source can only emit white light after the bare chip of the blue LED is added with green and red phosphors; It is usually different from the monitors using cold cathode lamps (CCFL), and the colors displayed by them will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G09F9/30G09F9/35
Inventor 徐雅玲林俊良王俊杰廖烝贤
Owner AU OPTRONICS CORP
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