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A kind of flexible liquid crystal display panel and display device

A flexible liquid crystal display and panel technology, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of light leakage of flexible liquid crystal display panels, and achieve the effect of improving the problem of light leakage in dark states

Active Publication Date: 2019-03-01
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Among them, ψ is the angle between the absorption axes of the upper and lower polarizers, φ 1 and φ 2 are the azimuth angles of the upper and lower polarizers when the viewing angle is zero, φ k is the azimuth angle of the human eye when the viewing angle is greater than zero, θ k is the polar angle of the human eye when the viewing angle is greater than zero; when the viewing angle is greater than zero, the angle between the light absorption axes of the upper and lower polarizers of the flexible liquid crystal display panel is not vertical, which will also cause the problem of light leakage in the dark state of the flexible liquid crystal display panel

Method used

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  • A kind of flexible liquid crystal display panel and display device
  • A kind of flexible liquid crystal display panel and display device
  • A kind of flexible liquid crystal display panel and display device

Examples

Experimental program
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Effect test

example 1

[0056] Example 1: If Figure 3a As shown, the compensation film 5 includes: a first compensation film 51 located between the second flexible substrate 2 and the liquid crystal cell 6, and a second flexible substrate 2 located between the second polarizer 4 and on the second flexible substrate 2 The second compensation film 52 and the third compensation film 53 are sequentially stacked on the top; wherein, the optical axis of the first compensation film 51 and the light absorption axis of the second polarizer 4 are parallel to each other, which is equivalent to an -A plate; the first compensation film The retardation Ro of the plane where 51 is located ranges from -80nm to -100nm; the optical axis of the second compensation film 52 is perpendicular to the second flexible substrate 2, which is equivalent to a +C plate; the plane where the second compensation film 52 is located The retardation Ro ranges from 2320nm to 2380nm; the optical axis of the third compensation film 53 is ...

example 2

[0064] Example 2: If Figure 4a As shown, the compensation film 5 includes: a first compensation film 51 and a second compensation film 52 that are sequentially stacked between the second flexible substrate 2 and the second polarizer 4 and arranged on the second flexible substrate 2; The optical axis of a compensation film 51 is perpendicular to the second flexible substrate 2, which is equivalent to a +C plate; the retardation Ro of the plane where the first compensation film 51 is located ranges from 2360nm to 2440nm; the optical axis of the second compensation film 52 The light absorption axis of the first polarizer 3 is parallel to each other, which is equivalent to an -A plate; the retardation Ro of the plane where the second compensation film 52 is located ranges from -120nm to -150nm. It should be noted that the optical axis of the second flexible substrate 2 is perpendicular to its surface, and the retardation of its plane is Ro=0nm.

[0065] In specific implementatio...

example 3

[0071] Example 3: If Figure 5a As shown, the compensation film 5 includes: a first compensation film 51 and a second compensation film 52 which are sequentially stacked between the second flexible substrate 2 and the liquid crystal cell 6 and arranged on the second flexible substrate 2; wherein, the first compensation film The optical axis of the film 51 is perpendicular to the second flexible substrate 2, which is equivalent to a +C plate; the retardation Ro of the plane where the first compensation film 51 is located ranges from 2400nm to 2450nm; the optical axis of the second compensation film 52 and the first The light absorption axes of the two polarizers 4 are parallel to each other, corresponding to an -A plate; the retardation Ro of the plane where the second compensation film 52 is located ranges from -120nm to -160nm. It should be noted that the optical axis of the second flexible substrate 2 is perpendicular to its surface, and the retardation of its plane is Ro=0n...

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PUM

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Abstract

A flexible liquid crystal display panel and a display device are disclosed. The flexible liquid crystal display panel comprises: a first flexible substrate and a second flexible substrate arranged oppositely; a first polarizer on a side of the first flexible substrate facing away from the second flexible substrate; a second polarizer on a side of the second flexible substrate facing away from the first flexible substrate; and a positive C plate compensation film and a first negative A plate compensation film arranged on the second flexible substrate; the positive C plate compensation film is arranged between the second flexible substrate and the first negative A plate compensation film. The light leakage defect of a visual angle greater than zero in a dark state can be overcome, which occurs since the absorption axis of the first polarizer and the absorption axis of the second polarizer are not perpendicular to each other.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible liquid crystal display panel and a display device. Background technique [0002] With the rapid development of display technology, flexible display panels have the advantages of thin and light weight, drop resistance, bendability, power saving and energy saving, etc. Liquid crystal display panels (LCD, Liquid Crystal Display) have low power consumption, high display quality, and no electromagnetic radiation. And the advantages of a wide range of applications make the flexible liquid crystal display panel a research hotspot in the field of display. [0003] Existing flexible liquid crystal display panels generally use polyimide (PI) film as a flexible substrate. This is because the PI film can withstand a high temperature close to 400°C. Damaged due to the high temperature environment when forming the active layer in the thin film transistor. [0004] When the flexib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/13363G02F1/1335
CPCG02F1/133305G02F1/133528G02F1/13363G02F1/133531G02F2202/40G02F2413/03G02F2413/07G02F2413/13G02F2413/14G02F1/133634G02F1/134363G02F2201/121G02F2201/123
Inventor 贾倩王英涛赵伟利
Owner BOE TECH GRP CO LTD