Unlock instant, AI-driven research and patent intelligence for your innovation.

A light guide plate, LED backlight module and electronic equipment

A technology of LED light source and light guide plate, which is applied in the field of backlight lighting, can solve the problem of reducing the brightness of light on the incident side, and achieve the effect of solving the problem of light spots and reducing reflection and refraction.

Active Publication Date: 2015-12-23
HISENSE VISUAL TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Embodiments of the present invention provide a light guide plate, an LED backlight module, and a TV set, which are used to solve the technical problem of reducing the brightness of light on the light incident side when the problem of light spots is alleviated in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A light guide plate, LED backlight module and electronic equipment
  • A light guide plate, LED backlight module and electronic equipment
  • A light guide plate, LED backlight module and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 of this application provides a light guide plate, please refer to Figure 2a and Figure 2b ,in Figure 2a is the structural diagram of the light guide plate, Figure 2b It is a structural diagram of the printing surface in the light guide plate, and the light guide plate includes the following structure:

[0048] at least one light incident surface 21;

[0049] A light exit surface 22 intersects at least one light incident surface 21;

[0050]The printing surface 23 is arranged opposite to the light-emitting surface 22, and the printing surface 23 specifically includes a blank area 23a and a dot area 23b; the blank area 23a is opposite to the at least one light incident surface 21 and the dot area 23b Next, wherein, the blank region 23a includes at least two blank subregions 23a1, at least two of the at least two sub-refractive indices corresponding to the at least two blank subregions are different from each other; the dot region 23b , connected to t...

Embodiment 2

[0092] Based on the same inventive concept, Embodiment 2 of this application provides an edge-lit LED backlight module, please refer to Figure 5 , the LED backlight module specifically includes the following structure:

[0093] The light guide plate 501 introduced in Embodiment 1 of this application;

[0094] The LED light source 502 is arranged opposite to the at least one light incident surface 21;

[0095] Wherein, after the first incident light generated by the LED light source 502 enters the light guide plate 501 through the light incident surface 21, it is reflected to the light output surface 23 through the reflection effect of the printing surface 23 .

[0096] In this embodiment, although the double-side incident light type is used as an example for introduction, in practice, it can also be a single-side light incident type, or a light incident type LED backlight module with more than two sides. The working principle is similar, so I won't repeat them here.

[0097...

Embodiment 3

[0099] Based on the same inventive concept, Embodiment 3 of the present application provides an electronic device, such as a TV set and a liquid crystal display, please refer to Figure 6 , the electronic equipment includes the following structure:

[0100] Chassis 61;

[0101] A processor 62 is arranged in the casing 61;

[0102] The display unit 63 is arranged on the casing 61 and connected to the processor 62, wherein the display unit 63 includes:

[0103] Liquid crystal panel 63a;

[0104] The side-light LED backlight module 63b introduced in Embodiment 2 of this application is connected to the liquid crystal panel 63a, wherein the liquid crystal panel 63a is set on the surface of the side-light LED backlight module 63b, and passes through the side The optical LED backlight module 63b can provide backlight for the liquid crystal panel 63a.

[0105] Since the electronic equipment introduced in the third embodiment of the application is an electronic equipment manufactur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a light guide board, an LED (Light-Emitting Diode) backlight module and electronic equipment. The light guide board comprises a light incident face, a light emergent face and a printing face, wherein the light emergent face is interacted with at least one light incident face; the printing face particularly comprises a blank area and a website area; the website area comprises at least one website; the blank area is connected with at least one light incident face and the website area; the blank area comprises at least two blank subareas; and at least two sub-refractive indexes in at least two sub-refractive indexes corresponding to at least two blank subareas are different, so that when first incident light generated by an LED light source located at one side of the at least one light incident face is incident from the light incident face to at least two blank subareas, the first incident light is transmitted in the at least two blank subareas through a curved path; and a bending direction of the curved path particularly refers to facing to the middle axis of the light guide board, which is parallel to the printing face.

Description

technical field [0001] The invention relates to the technical field of backlighting, in particular to a light guide plate, an LED backlight module and electronic equipment. Background technique [0002] With the development of electronic technology, more and more electronic devices have been produced, among which, many electronic devices have liquid crystal display screens. Usually, liquid crystal display screens include liquid crystal panels and backlight modules. The liquid crystal panels are composed of two layers A liquid crystal layer is sandwiched between glass substrates. Since the liquid crystal panel itself does not emit light, a uniform light source system needs to be provided for it through the backlight module. [0003] In the prior art, generally, LED backlight modules include: direct-type LED backlight modules and side-type LED backlight modules, among which, please refer to figure 1 , the side-entry LED backlight module includes the following structure: [0...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00F21S8/00F21V8/00G02F1/13357H04N5/64F21Y101/02F21Y101/00
Inventor 张登印黄奔
Owner HISENSE VISUAL TECH CO LTD