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

Backlight module and display device

A backlight module and display device technology, applied in optics, nonlinear optics, instruments, etc., can solve the problem of low fingerprint recognition accuracy, and achieve the effect of improving penetration ability and fingerprint recognition accuracy.

Active Publication Date: 2022-08-09
XIAMEN TIANMA MICRO ELECTRONICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fingerprint recognition accuracy is proportional to the light intensity received by the fingerprint recognition module. If the light guide plate has low penetration ability to infrared light, the fingerprint recognition accuracy will not be high.

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 Construction

[0022] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention, and are not configured to limit the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0023] It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from...

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 backlight module and a display device. The backlight module includes a fingerprint identification area and a non-fingerprint identification area, the backlight module includes a light guide plate, and the light guide plate includes a light emitting surface and a bottom surface arranged oppositely, and the bottom surface is provided with a first protrusion and a second protrusion. One first protrusion is located in the fingerprint identification area, and a plurality of second protrusions are located in the non-fingerprint identification area; wherein, the duty ratio of the first protrusions distributed in a unit area is smaller than that of the second protrusions distributed in a unit area. duty cycle. According to the embodiments of the present invention, the penetration ability of the fingerprint identification area of ​​the light guide plate to the red light can be improved, thereby improving the fingerprint identification accuracy.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] In recent years, with the popularity of mobile display products, information security has attracted much attention from consumers. Fingerprint recognition is unique and difficult to copy, and is widely used in unlocking and payment confirmation of mobile display products. [0003] The display panel in the liquid crystal display cannot emit light, and the display function needs to be realized by the light source provided by the backlight module. A backlight module usually includes a light source and a light guide plate. The fingerprint identification module can be arranged on the side of the light guide plate facing away from the display panel, and the infrared light reflected by the finger passes through the light guide plate to reach the fingerprint identification module. The fingerprint recogniti...

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): G02F1/13357
CPCG02F1/133606
Inventor 陈星
Owner XIAMEN TIANMA MICRO ELECTRONICS