An OLED panel and display device

A panel and area technology, applied in the direction of diodes, semiconductor devices, electrical components, etc., can solve the problems of unfavorable outdoor visual functions, etc., and achieve the effect of realizing outdoor visual functions, reducing thickness, and increasing the brightness attenuation angle of large viewing angles

Active Publication Date: 2021-10-26
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, after the POL is replaced by the color film, the transmittance of the black matrix adjacent to the color film is basically 0, so the light emitted by the OLED can only pass through the color film
In order to increase the brightness attenuation angle of large viewing angles, it is necessary to increase the aperture ratio of the color filter. However, with the increase of the aperture ratio of the color filter, the reflectivity of the OLED panel also increases, which is not conducive to the realization of outdoor visual functions.

Method used

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  • An OLED panel and display device
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Examples

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no. 1 example

[0043] Figure 6 It is a schematic structural diagram of an OLED panel according to the first embodiment of the present invention. From Figure 6 It can be seen from the figure that the OLED panel of this embodiment includes a substrate 10 , a TFT array layer 20 , an organic light emitting layer 30 and a color filter layer 80 . Wherein, the TFT array layer 20 is disposed on the substrate 10 , and the organic light emitting layer 30 is disposed on the TFT array layer 20 . The organic light emitting layer 30 includes an OLED pixel 32 and a pixel defining layer 31 defining an area of ​​the OLED pixel 32 . The color filter layer 80 is disposed on the organic light emitting layer 30 , and the color filter layer 80 includes a color filter 81 disposed on the OLED pixels 32 , and the color filter 81 is arranged in a one-to-one correspondence with the OLED pixels 32 .

[0044] The color filter 81 is disposed on the OLED pixel 32 , so that the light emitted by the OLED pixel 32 is em...

no. 2 example

[0054] Figure 7 It is a schematic structural diagram of an OLED panel according to the second embodiment of the present invention. Different from the first embodiment, in this embodiment, if Figure 7 As shown, the OLED panel further includes a protective film layer 90 located between the organic light emitting layer 30 and the color filter layer 80 . The protective film layer 90 can further protect the OLED pixel 32 and the cathode of the OLED pixel 32, and further improve the water and oxygen barrier performance of the OLED panel.

[0055] The material of the protective film layer 90 includes at least one of silicon nitride and silicon oxide. In a specific implementation, the material of the protective film layer 90 may be silicon nitride, silicon oxide or a mixture of silicon nitride and silicon oxide. After the organic light emitting layer 30 is formed, the protective film layer 90 may be formed on the organic light emitting layer 30 by evaporation. The thickness of t...

no. 3 example

[0057] Figure 8 It is a schematic structural diagram of an OLED panel according to a third embodiment of the present invention. From Figure 8 It can be seen from the figure that the OLED panel of this embodiment includes a substrate 10 , a TFT array layer 20 , an organic light emitting layer 30 and a color filter layer 80 . Wherein, the TFT array layer 20 is disposed on the substrate 10 , and the organic light emitting layer 30 is disposed on the TFT array layer 20 . The organic light emitting layer 30 includes an OLED pixel 32 and a pixel defining layer 31 defining an area of ​​the OLED pixel 32 . The color filter layer 80 is disposed on the organic light emitting layer 30 . Different from the first embodiment, in this embodiment, the color filter layer 80 includes a color filter 81 disposed on the OLED pixel 32 .

[0058] In addition, in this embodiment, the material of the pixel defining layer 31 is a black opaque material, such as black resin material, etc., so that ...

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Abstract

The invention discloses an OLED panel and a display device. The OLED panel includes a substrate, an organic light-emitting layer disposed on the substrate, and a color filter layer disposed on the organic light-emitting layer, the organic light-emitting layer includes OLED pixels, and the color filter layer includes a color filter layer disposed on the organic light-emitting layer. The color film on the OLED pixel. In this OLED panel, the distance between the color filter and the OLED pixel is greatly reduced compared with the existing technology, which increases the brightness attenuation angle of the large viewing angle of the OLED panel, so that the brightness attenuation angle of the large viewing angle can be increased without increasing the aperture ratio of the color filter. , to increase the brightness attenuation angle of large viewing angles while maintaining the low reflectivity of the OLED panel, which is conducive to realizing the outdoor viewing function and thinning of the OLED panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED panel and a display device. Background technique [0002] In the prior art, in order to realize the outdoor visual function of the organic light emitting diode (Organic Light Emitting Diode, OLED) panel, the display side of the OLED panel is provided with a linear polarizing layer (POL) to reduce the reflection of external ambient light and realize Outdoor viewing capabilities of OLED panels. Generally, the light transmittance of POL is 44%, the reflectance is 5%, and its thickness is greater than 50 μm. Such a thickness of POL is not conducive to realizing flexible display characteristics such as folding and curling of OLED panels. In order to realize flexible display characteristics, it is necessary to reduce the thickness of POL. At present, color film is usually used instead of POL to facilitate the realization of light and thin OLED panels. [0003] However, aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/50
Inventor 祝文秀史世明
Owner BOE TECH GRP CO LTD
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