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Circular polarizer and organic light emitting diode display panel

A technology of light-emitting diodes and circular polarizers, applied in optics, optical elements, polarizing elements, etc., can solve problems such as the decline of polarizer capability, color shift, and color shift of display images, to prevent hue changes, reduce reflected light, improve show effect

Active Publication Date: 2021-10-22
WUHAN 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

Existing OLED display panels often have an abnormal phenomenon of color shift in the display screen during the reliability test. The ability of light is reduced, which makes the hue of the display screen change
[0004] Therefore, in the OLED display panel of the prior art, the problem of color shift caused by the deterioration of the polarizer needs to be solved

Method used

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  • Circular polarizer and organic light emitting diode display panel
  • Circular polarizer and organic light emitting diode display panel
  • Circular polarizer and organic light emitting diode display panel

Examples

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Embodiment Construction

[0023] The circular polarizer and the OLED display panel provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understa...

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PUM

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Abstract

The invention provides a circular polarizer and an organic light emitting diode display panel comprising the same. The circular polarizer comprises a first pressure-sensitive adhesive layer, a phase difference layer, a second pressure-sensitive adhesive layer, a linear polarization layer, an adhesive layer and a supporting protection layer, and the first pressure-sensitive adhesive layer, the second pressure-sensitive adhesive layer and the adhesive layer all comprise water-absorbing materials. According to the circular polarizer provided by the invention, the water-absorbing material is added into the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer so as to block water vapor penetrating through the panel side, and the water-absorbing material is added into the adhesive layer of the circular polarizer so as to block water vapor penetrating through the outer side of the circular polarizer; and ammonium ions generated by chemical reaction of ammonia gas remaining in a panel film layer in a panel manufacturing process and water are effectively reduced or prevented, so that complexation of the ammonium ions and I5<-> miscomplex is effectively prevented, and the light absorption function of the I5<->miscomplex is damaged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a circular polarizer and an organic light emitting diode display panel. Background technique [0002] One of the challenges faced by the organic light-emitting diode (OLED) display panel is how to effectively reduce the interference of ambient light on the display effect, and setting a circular polarizer is one of the solutions. [0003] The circular polarizer is generally arranged on the light-emitting surface of the OLED display panel. The circular polarizer includes a linear polarizer and a 1 / 4 wave plate (phase retarder) stacked in layers. The ambient light incident from the outside passes through the linear polarizer and two After the second 1 / 4 wave plate, it becomes the reflected light perpendicular to the polarization direction of the linear polarizer, which is blocked by the linear polarizer. The linear polarizers in the circular polarizers commonly used in the industr...

Claims

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Application Information

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IPC IPC(8): G02B5/30G02B1/10G02B1/14H01L27/32H01L51/52
CPCG02B5/3041G02B5/3083G02B1/10G02B1/14H10K59/10H10K50/868
Inventor 陈慧
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD