Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Backlight source and display device

A technology of backlight source and light source, applied in electric light source, lighting device, light source fixing and other directions, can solve the problems of reducing the assembly efficiency of the backlight source and sinking, and achieve the effect of improving the display quality of the picture, the assembly efficiency and the picture quality.

Inactive Publication Date: 2014-04-09
BOE TECH GRP CO LTD +1
View PDF3 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the large size of the direct-lit backlight for large-sized display panels, after the display panel 6 is placed above the backlight, the central area of ​​the display panel 6 will sink under its own gravity, resulting in a high surrounding and low arc in the middle. , image display quality
[0004] The traditional solution is to set a support between the backplane and the diffusion plate, but the support needs to be punched on the backplane and fixed with buckles or screws, which greatly reduces the assembly efficiency of the backlight
In addition, there will be contact shadows at the contact position between the support and the diffuser plate, and the image display quality

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
  • Backlight source and display device
  • Backlight source and display device
  • Backlight source and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides a backlight, such as figure 2 As shown, it includes a backplane 1, a light source 2 and a diffusion plate 3. The light source 2 is arranged on the surface of the backplane 1, the diffusion plate 3 and the surface of the backplane 1 are parallel to each other, and the diffusion plate 3 is arranged on the backplane 1. On the side with the light source 2 and opposite to the light source 2 , a support column 31 is provided between the diffuser plate 3 and the back plate 1 , and the support column 31 and the diffuser plate 3 are made of the same material and integrally formed.

[0027] Wherein, the support column 31 and the diffuser plate 3 are integrally formed by injection molding, and the support column 31 extends along a direction perpendicular to the diffuser plate 3 to the surface of the back panel 1 where the light source 2 is disposed. Such as figure 1 As shown, the shape of the backplane 1 is an inverted trapezoid. During assembly, the dif...

Embodiment 2

[0035] This embodiment provides a backlight source. The difference from Embodiment 1 is that image 3 As shown, on the basis of Embodiment 1, in this embodiment, luminescent particles 4 are added to the material forming the support column 31 , and the luminescent particles 4 can emit light when irradiated by the light source 2 . Wherein, the luminescent particles 4 are made of rare earth elements such as neodymium or europium. These materials obey the anti-Stokes effect, that is, under the illumination of the light source 2, after the luminescent center of these materials absorbs two or more photons, it undergoes non-radiative relaxation to reach the luminescent energy level, and the energy level transitions to the ground state that is Can emit a visible photon. By adding luminescent particles 4 , the support column 31 itself becomes a light source, thereby reducing the brightness difference between the support column 31 and other parts of the diffusion plate 3 and improving ...

Embodiment 3

[0038] This embodiment provides a backlight source. The difference from Embodiment 1-2 is that, for example Figure 4 As shown, a reflective sheet 7 is also arranged between the back plate 1 and the diffuser plate 3. The reflective sheet 7 has a through hole in the area corresponding to the light source 2. The light source 2 shoots to the diffuser sheet 3 through the through hole, and the support column 31 The free end is in contact with the reflector 7.

[0039]The reflective sheet 7 is arranged close to the backplane 1, and the arrangement of the reflective sheet 7 enables the light irradiated by the light source 2 to the direction of the backplane 1 to be reflected by the reflective sheet 7 to the diffusion plate 3, thereby improving the utilization rate of the light. Thereby further improving the picture quality.

[0040] Other structures of the backlight in this embodiment are the same as those in Embodiment 2, and will not be repeated here.

[0041] Beneficial effects ...

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 provides a backlight source and a display device. The backlight source comprises a back plate, light sources and a diffusion plate; the light sources are arranged on the surface of the back plate; the surface of the diffusion plate is parallel to the surface of the back plate; the diffusion plate is arranged on the side, provided with the light sources, of the back plate and is opposite to the light sources; supporting pillars are further arranged between the diffusion plate and the back plate; the supporting pillars and the diffusion plate are made of the same materials and are integrally formed. According to the backlight source, the supporting pillars and the diffusion plate are made of the same materials and integrally formed, so that not only is the assembly efficiency of the backlight source enhanced, but also image quality is improved. Besides, by the adoption of the display device comprising the backlight source, not only is assembly efficiency is enhanced, but also image display quality is improved.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a backlight source and a display device. Background technique [0002] A liquid crystal display device is mainly composed of a display panel and a backlight source. The display panel is usually disposed above the backlight. There are two common ways to set up the light source in the backlight: direct-type and side-type. [0003] Such as figure 1 Shown is a direct-lit backlight. A light source 2 is arranged on a backplane 1, and the light emitted by the light source 2 directly illuminates a display panel 6 above the backlight. Usually, a diffusion plate 3 is provided between the light source 2 of the backlight and the display panel 6 for mixing and diffusing the light emitted by the light source 2 so that the light emitted by the light source 2 can irradiate the display panel 6 more uniformly. At present, due to the large size of the direct-lit backlight for large...

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 Applications(China)
IPC IPC(8): F21S8/00F21V17/10F21V19/00G02F1/13357
CPCG02F1/133602G02F1/133606G02F1/133608G02F1/133614F21V7/04F21V11/00G02F1/133605
Inventor 孙文佳张宇尹大根马青马文文
Owner BOE TECH GRP CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com