Backlight and display device
A technology of backlight source and light guide plate, which is applied to electric light sources, identification devices, lighting devices, etc., can solve the problem of insufficient overlapping area, insufficient overlapping area between light-shielding tape 2 and optical film material 8, and optical film material 8 moving. It can improve the display effect, solve the displacement of the optical film, and avoid the displacement.
Active Publication Date: 2018-10-19
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0004] As the display frame gradually narrows, the width of the plastic frame 1 becomes smaller and smaller, resulting in insufficient overlapping area between the light-shielding tape 2 and the plastic frame 1, and insufficient gap between the light-shielding tape 2 and the optical film material 8. The overlapping area makes it easy for the optical film material 8 to shift
[0005] In addition, since there is a gap between the light guide plate 7 and the plastic frame 1, after the light in the light guide plate 7 undergoes multiple refractions, part of the light will be refracted from the opposite side of the light incident side of the light guide plate 7 and reflected by the plastic frame 1. , the reflected light will cause the human eye to see bright lines at the edge of the visible area of the display device at a certain angle, thereby affecting the display effect
Method used
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[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the backlight source and display device provided by the present invention will be described in detail below with reference to the accompanying drawings.
[0026] figure 2 It is a partial structural diagram of one side of the backlight source provided by an embodiment of the present invention except for the light incident side of the light guide plate. See figure 2 , The backlight includes a light guide plate 17, an optical film 18 arranged on the light guide plate 17, and a light-shielding glue layer 12. Among them, the optical film 18 includes an upper prism sheet 181, a lower prism sheet 182, and a diffusion sheet 183 that are sequentially arranged from top to bottom. In addition, a lower polarizer 13, an array substrate 14, a color filter substrate 15, and an upper polarizer 16 are sequentially arranged on the upper surface of the optical film 18 from bot...
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The invention provides a backlight source and a display device. The backlight source comprises a light guide plate and an optical membrane arranged on the light guide plate. The optical membrane comprises an upper prismatic lens, a lower prismatic lens and a diffusion piece, wherein the upper prismatic lens, the lower prismatic lens and the diffusion piece are sequentially arranged from top to bottom. The backlight source further comprises a shading glue layer which is located on another three sides, except the incidence side, of the light guide plate, the shading glue layer comprises a horizontal part and a vertical part, and the horizontal part and the vertical part are connected with each other in a perpendicular mode. The horizontal part is pasted to the edge area of the upper surface of the optical membrane, and the vertical part is pasted to the side face of the light guide plate. By means of the backlight source provided by the invention, the problems that the optical membrane moves and bright lines occur on the edge of a visual area of the display device can be solved.
Description
Technical field [0001] The present invention relates to the field of display technology, in particular, to a backlight source and a display device. Background technique [0002] As the screen size of the display device gradually becomes larger, the display frame becomes gradually narrower, bringing the ultimate visual and tactile experience to consumers. But it also brings great challenges to the design of the main component of the display device: the display module. As the display frame becomes narrower and narrower, bright lines are likely to appear on the side of the visible area of the display module, which affects the picture effect. At the same time, the bonding and fixing area of the optical film and the display screen is getting smaller and smaller, which makes it easy to shift the optical film and separate the display from the backlight during the vibration drop test, resulting in light leakage. [0003] figure 1 It is a partial structure diagram of the existing back...
Claims
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IPC IPC(8): F21S8/00F21V13/00G09F9/00
CPCF21S8/00F21V13/00G09F9/00
Inventor蔡修军张彦超王大威任健
OwnerBOE TECH GRP CO LTD