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Color filter and white organic light emitting diode display device

A color filter, light-emitting diode technology, applied in the direction of diodes, filters, electrical components, etc., can solve the problems of reduced device life, large power consumption of monochromatic light pixels, etc., to improve service life, improve life, reduce The effect of power consumption

Inactive Publication Date: 2018-06-29
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The white light directly emitted by the WOLED device has more yellow light components, resulting in a larger Y value of the color coordinates. When matching white screens, higher brightness monochromatic light (such as blue light and red light, or blue light and green light) is required, resulting in white light. The power consumption of monochromatic light pixels is too large in the picture, which also reduces the life of the device

Method used

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  • Color filter and white organic light emitting diode display device
  • Color filter and white organic light emitting diode display device
  • Color filter and white organic light emitting diode display device

Examples

Experimental program
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Embodiment 1

[0027] This embodiment provides a color filter, which is applied to a white organic light emitting diode display device. Such as figure 1 As shown, the color filter 10 includes a red pixel area 1, a green pixel area 2, a blue pixel area 3 and a white pixel area 4, the red pixel area 1 is provided with a red photoresist R, and the green pixel area A green photoresist G is arranged in the region 2, a blue photoresist B is arranged in the blue pixel region 3, and the white pixel region 4 includes a first subregion 4a, and any one of One kind of monochrome photoresist, specifically red photoresist, green photoresist or blue photoresist. In this example, if figure 1 As shown, the first sub-region 4a is provided with a blue photoresist B1.

[0028] Specifically, see figure 1 and figure 2 As shown, the color filter 10 includes a pixel definition matrix 12 formed on a glass substrate 11, and the pixel definition matrix 12 defines the red pixel area 1, the green pixel area 2, the...

Embodiment 2

[0033] This embodiment provides a color filter. The difference from Embodiment 1 is that two monochrome photoresists of different colors are added in the white pixel area 4 .

[0034] Specifically, such as image 3As shown, in this embodiment, the white pixel region 4 further includes a second sub-region 4b, that is, the white pixel region 4 includes a first sub-region 4a and a second sub-region 4b. Wherein, the first sub-region 4a is provided with red photoresist, green photoresist or blue photoresist, and the second sub-region 4b is also provided with red photoresist, green photoresist or blue photoresist, and the first The color of the photoresist in the second sub-region 4b is different from the color of the photoresist in the first sub-region 4a. That is, any two selected from red photoresist, green photoresist and blue photoresist are respectively arranged in the first sub-region 4 a and the second sub-region 4 b. In this example, if image 3 As shown, the first sub-r...

Embodiment 3

[0040] This embodiment provides a white light organic light emitting diode display device, such as Figure 4 As shown, the white organic light emitting diode display device includes a display panel 20 and a color filter 10 disposed on the display panel 20 . Wherein, the display panel 20 is a white organic light emitting diode display panel, and the color filter 10 is the color filter as described in the first embodiment or the second embodiment above.

[0041] Among them, such as Figure 4 As shown, the white organic light emitting diode display panel 20 includes a thin film transistor array substrate 21 and a light emitting structure layer 22 connected to the array substrate 21 , the light emitting structure layer 22 is covered with a packaging film 23 . The color filter 10 is disposed on the packaging film 23 .

[0042] Specifically, such as Figure 5 As shown, the light emitting structure layer 22 includes an anode layer 22a, a white light organic light emitting layer 22...

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Abstract

The invention discloses a color filter which is applied to a white organic light emitting diode display device. The color filter comprises a red pixel area, a green pixel area, a blue pixel area and awhite pixel area, wherein a red photoresistor is arranged in the red pixel area; a green photoresistor is arranged in the green pixel area; a blue photoresistor is arranged in the blue pixel area; the white pixel area comprises a first sub-area; the red photoresistor, the green photoresistor or the blue photoresistor is arranged in the first sub-area. The invention also discloses a white organiclight emitting diode display device comprising the color filter. The color filter disclosed by the invention can reduce the Y value of the chromaticity coordinate of white pixel, lowers the brightnessrequirement on single-color pixel when displaying a white picture, reduces power consumption of the display device, and also prolongs the service life of the display device.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a color filter used for a white light organic light emitting diode display device, and also to a white light organic light emitting diode display device. Background technique [0002] Organic light emitting diode (Organic Light Emitting Diode, OLED) has the characteristic of self-illumination. It adopts very thin organic material coating and glass substrate. When the current passes through, the organic material will emit light, and the organic light emitting diode display screen has a large viewing angle. , and can significantly save power, so organic light-emitting diodes are now more and more widely used. [0003] The core component of an OLED display device is an OLED display panel. The structure of an OLED display panel usually includes: a TFT array substrate, an anode layer sequentially fabricated on the TFT substrate, a pixel definition layer, a first common layer for tran...

Claims

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Application Information

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IPC IPC(8): H01L27/32G02B5/20
CPCG02B5/20H10K59/50
Inventor 涂爱国
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD