Display panel and display device

A technology for display panels and substrates, applied in instruments, optics, nonlinear optics, etc., can solve problems such as unfavorable control and easy light leakage, and achieve the effect of ensuring white brightness, compensating for differences, high brightness and high contrast display.

Active Publication Date: 2021-06-01
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Wherein, the light emitted by the backlight module 90 ( figure 2 (indicated by the middle arrow) passes through the light-control liquid crystal cell 91 and the display liquid crystal cell 92 in turn, and the light-control liquid crystal cell 91 mostly adopts polymer dispersed liquid crystal (PNLC liquid crystal), and the PNLC liquid crystal still has a relatively high transmittance in the dark state. It is not conducive to the control of light in the dark state, and it is easy to leak light

Method used

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. 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 those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. Also it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. Further, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the oth...

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Abstract

The invention discloses a display panel and a display device, comprising a backlight module, a light-controlling liquid crystal cell, a collimating film layer and a display liquid crystal cell, which are sequentially stacked from bottom to top; the collimating film layer can limit the scattering state. Large angle light passes through. A display device includes the above-described display panel. The invention adopts the double-cell thick liquid crystal display technology, improves the transmittance of the light-controlling liquid crystal cell by reducing the light leakage of the light-controlling liquid crystal cell in the dark state, ensures the white-state brightness of the double-cell liquid crystal display, realizes high-brightness and high-contrast display, and compensates for The difference in contrast between LCD display technology and OLED display technology is analyzed, and the cost advantage of LCD compared to OLED is guaranteed.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] Liquid crystal display (LCD) display technology has been available for many years. Compared with the emerging organic light emitting diode (OLED) display technology, LCD has obvious disadvantages in display contrast. In order to make up for this defect, the submillimeter light-emitting diode (Mini LED) backlight technology developed in recent years can realize dynamic high-contrast display through partition backlight control. It has a contrast close to that of OLED display technology and can achieve high brightness at the same time. It is favored by people. . However, since the Mini LED light board technology adopts the method of chip array on the FPC / PCB board, most of them also adopt the method of whole-surface packaging. The cost of materials such as substrates, chips, packaging glue, and diaphragms ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1347G02F1/1334G02F1/1335
CPCG02F1/13476G02F1/1334G02F1/1335G02F1/1323G02F1/133504G02F1/133607G02F1/13345G02F1/133567G02F1/133562
Inventor 杨勇查国伟张桂洋
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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