Back light and display panel
A backlight and light guide plate technology, applied in optics, optical components, nonlinear optics, etc., can solve problems such as the failure of the shading tape on the edge of the backlight, the occurrence of peripheral bright lines, etc.
Inactive Publication Date: 2019-01-18
XIAMEN TIANMA MICRO ELECTRONICS
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Problems solved by technology
[0004] In view of this, the embodiments of the present invention provide a backlight source and a display panel to solve the problem that in the existing electronic equipment, after the optical film in the backlight source shrinks, the light-shielding tape at the edge of the backlight source will fail, and peripheral bright lines will occur.
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0023] Backlight (Back Light) is a light source located behind the liquid crystal display (LCD), and its luminous effect will directly affect the visual effect of the liquid crystal display module (LCM). The LCD itself does not emit light, it displays graphics or the result of its modulation of light.
[0024] figure 1 It is a schematic structural view of the backlight source before the optical film 20 shrinks in the prior art, see figure 1 , the light guide...
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The application provides a back light and a display panel. The back light comprises a light guide plate and multiple layers of optical films, wherein the multiple layers of optical films are arrangedon the light guide plate in sequence; each optical film comprises a substrate layer, a first coating and a second coating; the substrate layers are glass ribbons; the first coatings are arranged on first surfaces of the substrate layers; and the second coatings are arranged on second surfaces of the substrate layers. In the back light disclosed by the embodiment of the application, the glass ribbons are taken as the substrate layers of the optical films, and the sizes of the substrate layers of the optical films are almost unchanged along with the fall of temperature, so that the sizes of theoptical films are almost unchanged, and the problem of bright lines on the periphery due to the contraction of the optical films when the optical films fall from a high temperature to a low temperature in the prior art is solved.
Description
technical field [0001] The present invention relates to the technical field of display devices, and more specifically, to a backlight source and a display panel. Background technique [0002] With the continuous development of science and technology, more and more electronic devices with display functions are widely used in people's daily life and work, which brings great convenience to people's daily life and work, and has become an indispensable important tool missing. [0003] The main part of the electronic device to realize the display function is the display panel. The backlight of the display panel is made of multiple optical films. In the prior art, the optical film is mainly made of polyethylene terephthalate (hereinafter PET for short), during the production process, the optical film with the target thickness and size can be obtained by stretching the heated PET. The impact will cause the optical film to shrink. After the optical film shrinks, it will cause the l...
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IPC IPC(8): G02F1/13357G02B1/00
CPCG02B1/00G02F1/1336G02F1/133606
Inventor 马雄斌
Owner XIAMEN TIANMA MICRO ELECTRONICS