Supercharge Your Innovation With Domain-Expert AI Agents!

Display device and backlight module driving method

A technology for backlight modules and display devices, which is applied to static indicators, instruments, etc., can solve the problems of low contrast of display devices and cannot meet the development needs of high contrast of display devices, and achieve the effect of improving contrast

Active Publication Date: 2017-08-18
ALLIN OPTO ELECTRONICS SUZHOU CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for existing liquid crystal display device, because it needs to utilize backlight source to provide backlight for it
The backlight is often driven uniformly by the power supply, resulting in the backlight brightness of the entire backlight is always uniform
The contrast of such a display device is low, which cannot meet the development requirements of a high contrast display device.

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
  • Display device and backlight module driving method
  • Display device and backlight module driving method
  • Display device and backlight module driving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 It is a structural block diagram of a display device provided by Embodiment 1 of the present invention. figure 2 It is a schematic structural diagram of a backlight module and a display module in a display device provided in Embodiment 1 of the present invention. image 3 for figure 2 Schematic diagram of the structure of the backlight module in . see figure 1 , figure 2 and image 3 , the display device includes a backlight module 11 , a display module 12 opposite to the backlight module 11 , a display brightness acquisition module 13 and a driving module 14 . The backlight module 11 includes a plurality of light source groups 112 , and each light source group 112 includes at least one light emitting unit 1121 , and each light emitting unit 1121 in the same light source group 112 is electrically connected to the same port of the driving module 14 . The display module 12 includes a plurality of sub-display areas 121 , and each sub-display area 121 corr...

Embodiment 2

[0050] Figure 4 A schematic structural diagram of a backlight module in a display device provided by Embodiment 2 of the present invention. Figure 5 for along Figure 4 Sectional view of D1-D2 in the middle. Figure 4 and Figure 5 The backlight module provided in is an edge-lit backlight module. This embodiment is a specific example of the first embodiment.

[0051] see Figure 4 and Figure 5 , the backlight module 11 also includes a light guide plate 15; the light guide plate 15 includes at least one light incident surface 151, a light reflective surface 152 intersecting the light incident surface 151, and a light exit surface 153, the light reflective surface 152 and the light exit surface 153 are arranged oppositely, and the light guide plate A plurality of light source groups 112 are provided on any side of the light incident surface 151 of the light guide plate 15 ; In use, after the light emitted by the light source group 112 enters the light guide plate 15 , ...

Embodiment 3

[0055] Figure 7 A schematic structural diagram of a backlight module in a display device provided by Embodiment 3 of the present invention. Figure 8 for along Figure 7 Sectional view of E1-E2 in Fig. Figure 7 and Figure 8 The backlight module provided in is an edge-lit backlight module. This embodiment is a specific example of the second embodiment.

[0056] see Figure 7 and Figure 8 , the backlight module 11 further includes a light guide plate 15 . The light guide plate 15 is a microstructure light guide plate. Exemplarily, the light guide plate 15 includes two light incident surfaces 151, a light reflective surface 152 intersecting the light incident surfaces 151, and a light exit surface 153, the two light incident surfaces 151 are arranged oppositely, and the light reflective surface 152 and the light exit surface 153 are oppositely arranged; The light emitting surface 153 includes a plurality of strip-shaped protrusions 155 , and the extending direction of...

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 embodiment of the invention discloses a display device and a backlight module driving method. The display module comprises a backlight module, a display module, a display brightness acquisition module and a driving module. The backlight module comprises a plurality of light source groups each including at least one light-emitting unit. The display module comprises a plurality of sub display areas each corresponding to at least one light source group. The display brightness acquisition module is electrically connected to the driving module and is used for acquiring a next frame of image data, and acquiring the display brightness of respective sub display areas according to the next frame of image data when the display module displays a next frame of image. The driving module is used for controlling the brightness of the light source groups corresponding to respective sub display areas when the next frame of image is displayed according to the display brightness of respective sub display areas when the next frame of image is displayed by the display module. The display device is improved in contrast.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular to a display device and a method for driving a backlight module. Background technique [0002] With the development of science and technology, display devices with display functions, such as mobile phones, tablet computers, TVs, smart wearable devices, and information inquiry machines in the halls of public places, have entered people's daily lives and become a must-have in people's lives. an essential part. [0003] Contrast is an important parameter used to measure the display effect of a display device. Contrast specifically refers to the ratio of the brightness of the same point in the display area when the display device is displaying an image when it is the brightest (white) to the darkest (black). A higher contrast ratio means that the color of the image presented by the display device is more vivid. But for the existing liquid crystal display device, becau...

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): G09G3/34
CPCG09G3/3406G09G3/3413
Inventor 吴登林
Owner ALLIN OPTO ELECTRONICS SUZHOU CO LTD
Features
  • R&D
  • 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