A display panel, its manufacturing method and display device
A technology of display panel and light guide plate, applied in the directions of plane/plate light guides, instruments, light guides, etc., can solve the problems of low contrast of display devices, and achieve the effect of avoiding light energy loss and improving contrast.
Active Publication Date: 2022-04-29
BOE TECH GRP CO LTD
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Problems solved by technology
[0003] Embodiments of the present invention provide a display panel, a manufacturing method thereof, and a display device to solve the problem of low contrast of the display device in the prior art
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[0060] In the manufacturing process of a light-taking grating, the entire grating film layer 102 is first formed on the light guide plate 101, such as Figure 1a As shown, a mask plate is used to block the light-taking port area P, and the part of the grating film layer 102 located in the transparent area Q is etched away by an etching process, so that the grating film layer 102 is patterned, as shown in FIG. Figure 1b As shown, a light-trapping grating 103 is formed in the light-trapping port area P. Due to the grating preparation process, in the process of forming the grating film layer 102, or in the process of patterning the grating film layer 102, it is inevitable that the light guide plate 101 in the transparent area Q will be etched, such as Figure 1b As shown, the light guide plate 101 in the transparent area Q will be etched with a plurality of pits T, so that part of the light in the light guide plate 101 will be emitted in the transparent area Q, directly resulting...
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Abstract
The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises: a light guide plate, an array substrate, a liquid crystal layer located between the light guide plate and the array substrate, and a plurality A light-taking grating, and a transparent protective layer between the film layer where the light-taking grating is located and the light guide plate; the light guide plate includes: a plurality of light-taking port areas, and transparent areas other than the light-taking port area; in each A light-taking grating is provided in the area of the light-taking port; and a protective layer for preventing over-cutting is provided at least in the transparent area. By setting a protective layer between the film layer where the light-taking grating is located and the light-guiding plate, the protective layer will protect the light-guiding plate during the process of forming a patterned light-taking grating by etching, thereby preventing the light-guiding plate from being damaged. The loss of light energy caused by etching improves the contrast of the display, and because the protective layer is transparent, it will not affect the normal light output of the display panel.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a display panel, a manufacturing method and a display device. Background technique [0002] With the continuous development of display technology, a new type of display device has emerged in Liquid Crystal Display (LCD) technology. The backlight module of the display device takes out the light in the light guide plate through the light-taking grating, so that Provides a backlight for the display panel. Contents of the invention [0003] Embodiments of the present invention provide a display panel, a manufacturing method thereof, and a display device to solve the problem of low contrast of the display device in the prior art. [0004] In a first aspect, an embodiment of the present invention provides a display panel, including: a light guide plate, an array substrate disposed opposite to the light guide plate, a liquid crystal layer located between the light guide plate and th...
Claims
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IPC IPC(8): G02B6/00G02F1/1335
CPCG02B6/0093G02B6/0063G02F1/133512G02F1/133524G02B6/0038G02B6/002G02B6/0065G02F1/136209G02F1/133615G02F1/133357G02F2201/50G02F2201/30G02F1/133368G02F2201/07
Inventor 孟宪东谭纪风董水浪王维刘文渠赵文卿凌秋雨孟宪芹田依杉康昭
Owner BOE TECH GRP CO LTD