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Organic light-emitting diode display panel and display device

A technology for light-emitting diodes and display panels, applied in diodes, identification devices, organic semiconductor devices, etc., can solve the problems of hysteresis coefficients that cannot be satisfied at the same time, light leakage, large thickness, etc., to reduce the probability of reflection and light leakage, improve anti-reflection ability, The effect of thin and light design

Inactive Publication Date: 2019-12-20
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

The polarizer is a composite film composed of multiple layers of organic materials, which includes at least one phase retardation layer, one linear polarizing layer and a multi-layer protective film, so it has a relatively large thickness, which is not conducive to the realization of light and thin display screens
In addition, the phase retardation layer in the currently used polarizer is an integral structure. The retardation coefficient of the phase retardation layer of this overall structure cannot meet the phase requirements of the entire visible light band at the same time, so some light cannot pass through the phase retardation layer and be linearly polarized. Transformed into circular polarized light, and this part of the light cannot be extinguished by the linear polarizing layer after being reflected by the cathode, resulting in light leakage, which seriously reduces the anti-reflection ability of the display screen

Method used

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  • Organic light-emitting diode display panel and display device
  • Organic light-emitting diode display panel and display device
  • Organic light-emitting diode display panel and display device

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Embodiment Construction

[0025] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0026] An embodiment of the present invention provides an organic light emitting diode display panel, in which a phase retardation unit and a polarizing unit are separately arranged on each pixel unit of the display panel, which can reduce the overall thickness of the display panel and improve the anti-reflection capability of the display panel Effect.

[0027] Such a...

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Abstract

The invention provides an organic light-emitting diode display panel and a display device. The display panel comprises a display substrate and a phase function layer arranged on the display substrate,wherein the display substrate comprises a plurality of pixel units; the phase function layer comprises a plurality of phase hysteresis layers; each phase hysteresis layer corresponds to one pixel unit; and the phase hysteresis layer is used for converting the linearly polarized light passing through the phase hysteresis layer into circularly polarized light. The display panel and the display device provided by the invention are high in anti-reflection capability, not interfered by external light when a picture is displayed, high in definition, and favorable for realizing the light and thin design of the display panel and the display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting diode display panel and a display device. Background technique [0002] With the development of science and technology and the improvement of people's requirements for products, more and more flexible display screens are valued and favored by the market. Compared with liquid crystal display panels, organic light emitting diode display panels have inherent advantages in the structure of flexible display screens. Therefore, major panel manufacturers have invested more energy in the research and development of flexible organic light emitting diode display screens. [0003] The thickness of the display screen will have a greater impact on the flexible characteristics of the display screen, and the thinner the display screen is, the more favorable it is to realize its flexible characteristics. At present, in order to eliminate the reflection effect of the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G09F9/30
CPCG09F9/301H10K59/38H10K59/12H10K50/868H10K2102/311
Inventor 杨汉宁
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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