Backlight module and liquid crystal display module

A backlight module and light source technology, which is applied in light guides, optics, optical components, etc., can solve the problems of optical diaphragm expansion obstruction, material limitation, and high power consumption, so as to enhance display stability, alleviate expansion obstruction, and improve user experience Effect

Active Publication Date: 2022-04-05
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the relatively high power consumption of medium and large-sized vehicle modules, and relatively strict heat dissipation requirements, there are also strict restrictions on the choice of material thickness.
With the increasing demand for ultra-narrow bezels of vehicle-mounted modules in the market, for medium and large-sized vehicle-mounted modules, due to the limitations of module frame size, heat dissipation capacity, and structural strength, conventionally designed modules cannot guarantee the performance of vehicle-mounted displays. The goal of narrow bezel design is achieved under the premise of high reliability requirements of the module
[0004] Therefore, the existing backlight modules and liquid crystal display modules used for narrow frame vehicle display devices, due to the limitation of the frame size, heat dissipation capacity and structural strength of the modules, have the technical problem of hindering the expansion of the optical diaphragm, which needs to be improved.

Method used

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  • Backlight module and liquid crystal display module
  • Backlight module and liquid crystal display module
  • Backlight module and liquid crystal display module

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

A backlight module, the backlight module includes: a backplane, a light source, a reflection sheet, a light guide plate, an optical film, and a fixed frame; wherein the backplane includes a first bottom sheet metal and a second bottom sheet metal, The first bottom sheet metal and the second bottom sheet metal enclose an accommodation cavity, the first bottom sheet metal and the second bottom sheet metal are combined together through riveting holes, and the first bottom sheet metal is located The upper surface of the second bottom sheet metal; the light source is arranged in the accommodating cavity, the reflective sheet is arranged on the bottom surface of the backboard; the light guide plate is arranged on the reflective sheet, and the light source The light exit surface of the light guide plate corresponds to the light incident surface of the light guide plate; the optical film is arranged in the accommodating cavity and is located on the light exit surface of the light guide plate; the fixed frame is arranged on the opposite side of the back plate sides.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a backlight module and a liquid crystal display module. Background technique [0002] With the development of vehicle-mounted display technology, the requirements for the appearance of vehicle-mounted display modules are getting higher and higher, and the requirements for the frame of vehicle-mounted LTPS (Low Temperature Poly-Silicon, LTPS, low temperature polysilicon) display modules are also getting narrower. [0003] Due to the high reliability requirements of the on-board display, the optical diaphragm will expand under high temperature conditions. Since the optical diaphragm of the vehicle-mounted display device is relatively large overall, the deformation due to expansion is also large. When the deformation of the optical diaphragm is greater than the gap between the optical diaphragm and the side wall, the optical diaphragm will be affected by The hindered exp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1333G02B6/00
CPCG02F1/133608G02F1/133308G02B6/0088G02B6/009
Inventor 周政
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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