Display panel and display device
A display panel and substrate technology, applied in optics, instruments, nonlinear optics, etc., can solve problems such as unfavorable control and easy light leakage, and achieve the effect of ensuring white state brightness, making up for differences, high brightness and high contrast
Active Publication Date: 2020-01-10
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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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
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[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. The display panel includes 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 pass of large angle light with a scattering state. The display device includes the display panel described above. The invention adopts a dual-box thick liquid crystal display technology, by reducing the light leakage of the light-controlling liquid crystal cell in a dark state, the transmittance ofthe light-controlling liquid crystal cell is improved, the white state brightness of a dual-box liquid crystal display is ensured, the high-brightness and high-contrast display is realized, a difference in contrast between an LCD display technology and an OLED display technology is compensated, and the cost advantage of an LCD compared to an 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 ...
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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