Side-type backlight module and display device
A side-entry backlight and module technology, which is applied in the field of side-entry backlight modules and display devices, can solve the problems of low utilization rate of light energy, and achieve the effect of improving utilization rate and reducing cost consumption
Active Publication Date: 2020-07-31
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a side-entry backlight module, aiming to solve the problem of low utilization rate of light energy in traditional side-entry backlight modules
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[0023] 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 part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, in t...
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Abstract
The invention discloses a lateral-emission type backlight module and a display device. The lateral-emission type backlight module includes a back plate, a reflecting sheet, a back light source and a light guide plate, wherein the reflecting sheet is arranged between the back plate and the light guide plate, the light guide plate comprises a first light guide layer, PET plates and a second light guide plate which are sequentially arranged in a laminated mode, the first light guide layer is arranged closely to the reflecting sheet, the back light source is arranged closely to the lateral surfaceof the first light guide layer, and the refractive indexes of the transparent PET plates are higher than those of the first light guide layer and the second light guide layer. Light energy can enterthe PET plates from the first light guide layer without total reflection and almost completely enter the middle PET plate, and therefore the utilization rate of the light energy is greatly increased,and the cost consumption caused by illuminance enhancement is reduced.
Description
technical field [0001] The invention relates to a liquid crystal display device, in particular to an edge-in type backlight module and a display device. Background technique [0002] Liquid crystal displays have the advantages of lightness and thinness, and have been widely used. Backlight modules are devices that provide light sources for liquid crystal displays. Backlight modules are divided into direct-type backlight modules and side-type backlight modules according to the location of the light source. Group. The side-entry backlight module is composed of a backplane, a middle frame, a reflector, a light guide plate, a diaphragm, and an LED light bar. Among them, the LED light bar is a line light source, and its light energy needs to be converted into a surface light source through the light guide plate and the dots at the bottom. The commonly used material of the light guide plate is PMMA (polymethyl methacrylate), etc. From a theoretical analysis, its refractive index...
Claims
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IPC IPC(8): G02F1/13357G02B6/00
Inventor 刘欣樊为沈思宽李霞
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD