Backlight module and display device

A technology of backlight module and light guide, which is applied in the direction of light guide, optics, optical components, etc., can solve the problems of poor bending flexibility of the backlight module, and achieve the effect of improving the bending performance and uniform backlight

Pending Publication Date: 2021-11-02
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a backlight module and a display device, which can solve the technical problem of poor bending flexibility of the backlight module of the existing flexible liquid crystal display

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 module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 8 As shown, this embodiment provides a backlight module, the backlight module includes a substrate 10, a light guide layer 20 and an encapsulation adhesive layer 30, the substrate 10 has a plurality of light sources 11, and the light guide layer 20 is arranged on The substrate 10 has one side of the light source 11, the light guide layer 20 is a patterned structure, and the patterned structure can change the light guide layer 20 from directly above the light source 11 to the light source 11 The light transmittance at the gap.

[0039] In this embodiment, from the perspective of thinning, the substrate 10 is preferably a flexible substrate (PI) or a thinned glass substrate, and the traces on the substrate 10 are formed by array semiconductor technology to achieve the desired The thinner design and multi-region design of the substrate 10 are described. The overall thickness of the substrate 10 is not more than 0.1 mm. The driving mode of the...

Embodiment 2

[0063] Such as Figure 1 ~ Figure 4 as well as Figure 6 ~ Figure 12 As shown, this embodiment provides a backlight module, the backlight module is a direct type backlight module, the backlight module includes a substrate 10, a light guide layer 20 and an encapsulation adhesive layer 30, and the substrate 10 has multiple A light source 11, the light guide layer 20 is provided on the surface of one side of the encapsulation adhesive layer 30, and the light guide layer 20 is a patterned structure.

[0064] In this embodiment, the substrate 10 can be one of a flexible circuit board (FPC), a printed circuit board (PCB), a glass substrate, and a flexible substrate (PI). From the perspective of thinning the device, the The substrate 10 is preferably a flexible circuit board and a flexible substrate substrate, and the traces on the substrate 10 are formed by an array semiconductor process to achieve a thinner design and a multi-region design of the substrate 10 . The overall thickn...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Film thicknessaaaaaaaaaa
Film thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a substrate and a light guide layer, and the substrate is provided with a plurality of light sources; and the light guide layer is of a patterned structure, and the patterned structure can change the light transmittance of the light guide layer from the position over the light sources to the gap between the light sources. The display device comprises the backlight module. The backlight module and the display device have the technical effects that the uniform light effect of the backlight module is improved, meanwhile, the thickness of the film layer is reduced, the bendable performance of the backlight module is improved, and uniform backlight of the ultrathin flexible display device is achieved.

Description

technical field [0001] The present application relates to the display field, in particular to a backlight module and a display device. Background technique [0002] Flexible screen has the technical advantages of being bendable and flexible, so it is favored by many display terminal manufacturers including mobile phones and notebook computers. OLED display technology can use flexible substrates as substrates, and has more technical advantages than liquid crystal displays (LCDs) in the preparation of flexible devices, while conventional liquid crystal displays cannot match OLEDs in flexibility due to glass substrates, backlights and other factors. But at present, liquid crystal display LCD has exhibited or reported flexible panels, but the backlight of liquid crystal display LCD cannot achieve a large degree of bending or flexibility due to factors such as rubber iron frame and light guide plate, and flexible liquid crystal display LCD backlight has been Become a bottleneck ...

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
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133607G02F1/133606G02F1/1336G02B6/0058G02B6/0035G02B6/0081G02B6/005
Inventor杨勇查国伟
OwnerWUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD