Organic electroluminance display panel
An electroluminescence display and display panel technology, which is applied in the directions of electroluminescence light sources, electric light sources, circuits, etc., can solve the problems of decreased light intensity, color shift, and shortened life of the display panel 10, etc.
Active Publication Date: 2008-10-22
AU OPTRONICS CORP
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Problems solved by technology
[0005] However, due to the material properties of the display element 14, the red light filter 22, the green light filter 24 and the blue light filter 26, the red light (R), green light (G) and blue light (B) usually formed ) often have different intensities, therefore, in the subsequent image display operation, it is often found that under the same electric field, the image displayed by the combination of red light (R), green light (G) and blue light (B) will be different The phenomenon of color shift occurs, for example, assuming that after passing through the red light filter 22 and the blue light filter 26, a large decrease in light intensity will be caused (that is, the green light generated in the pixel has a relatively large Intensity), then when the display panel 10 wants to display white and drives the display element 14 with the same electric field or current intensity, it will be found that the actually formed light color will be a white-greenish situation, which will seriously affect the display quality. influences
[0006] In the prior art, there are also some solutions to the above-mentioned color shift problem. For example, by selectively increasing the electric field of the display element 14 at the sub-pixel regions of other colors, a larger light intensity output to improve the color balance of the light passing through the filter, but this method of overcoming the problem of chromatic aberration by increasing the electric field often also causes the shortcoming of rapid aging of the display element and shortens the life of the display panel 10
[0007] Therefore, we urgently need a new organic electroluminescent display panel structure to solve the problem of light and color imbalance in the prior art
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[0034] Please refer to figure 2 , figure 2 It is a schematic cross-sectional view of an organic electroluminescence display panel in an embodiment of the present invention. Such as figure 2 As shown, an organic electroluminescent display panel 110 includes a substrate 112, similarly, in figure 2 Only one pixel is shown in the figure as a representative for convenience of description, but actually there are still multiple pixels on the surface of the substrate 112 .
[0035] In this pixel, the surface of the substrate 112 has a first sub-pixel area 120 , a second sub-pixel area 130 and a third sub-pixel area 140 . A display element 114 is disposed on the surface of the substrate 112 and can be driven to generate light. In one embodiment of the present invention, the display element 114 is an organic electroluminescent display element that can generate white light, but the present invention is not limited thereto, and can be an organic electroluminescent display element ...
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The invention relates to an organic electro luminance display panel including a base plate, the surface of the plate is defined with a first pixel zone and a second pixel zone, an organic electro luminance element is set on said plate to be driven and emits light, a first optical film and a second optical film are set in the two pixel zones separately, the light emitted from the organic electro-luminance element is absorbed or transferred by the optical film to generate a first colored light and a second colored light from the two pixel zones separately, in which, the two optical films have different areas.
Description
technical field [0001] The present invention relates to a display panel, in particular to an organic electroluminescence display panel. Background technique [0002] With the rapid development of science and technology, organic materials are gradually and widely used in various circuit components, such as an organic electroluminescent display panel (organic electroluminescent display, OLED) made of organic materials, with a simple structure and excellent The advantages of operating temperature, contrast ratio, viewing angle, and light-emitting diode (LED) rectification and light-emitting characteristics gradually attract attention in the display market. [0003] The full-color technology widely used in the current organic electroluminescent display panel industry can be roughly divided into red, green and blue sequential evaporation (RGB side-by-side pattern) and white light plus color filter (CFA) ) method, because the latter only needs to manufacture white light display e...
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IPC IPC(8): H01L27/32G02F1/23G02B5/23H05B33/12
Inventor 李重君
Owner AU OPTRONICS CORP