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Backlight module, scanning driving method of backlight module, and display device

A technology of backlight module and scanning drive circuit, which is applied to static indicators, instruments, etc., can solve the problems of wasting time and occupying scanning time, and achieve the effects of increasing charging time, improving brightness, and increasing scanning time

Active Publication Date: 2021-08-24
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, for the direct type backlight module, since the backlight module generally scans according to a fixed driving sequence, no matter whether the light source in the corresponding area needs to be lit, this part of the area will still occupy the scanning time, and this part of the time is a complete waste

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  • Backlight module, scanning driving method of backlight module, and display device
  • Backlight module, scanning driving method of backlight module, and display device
  • Backlight module, scanning driving method of backlight module, and display device

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Embodiment Construction

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0026] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0027] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a backlight module, a scanning driving method for the backlight module, and a display device, which belong to the technical field of display. The backlight module is a direct type backlight module. The area includes a plurality of light sources arranged in an array; the scanning driving circuit includes a driving module and a control module; the light-emitting area includes at least a first light-emitting area and a second light-emitting area, and the gray scale of the first light-emitting area is greater than that of the second light-emitting area. ; Within a frame time, the scanning time of the first light-emitting area is greater than the scanning time of the second light-emitting area. The display device includes a display panel and the above-mentioned backlight module arranged oppositely. The scanning driving method of the backlight module includes the driving module of the scanning driving circuit outputting a timing voltage signal to the control module within a frame time. The invention can not only avoid the waste of scanning time, but also can improve the brightness of the backlight module in the lighted task area, and improve the display effect of the display device.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a backlight module, a scan driving method for the backlight module, and a display device. Background technique [0002] In the existing display devices, the display panel is mainly divided into two mainstream technologies of liquid crystal display panel and organic self-luminous display panel. Among them, the liquid crystal display panel forms an electric field that can control the deflection of liquid crystal molecules by providing appropriate voltages to the pixel electrodes and common electrodes, and then controls the transmission of light to realize the display function of the display panel; the organic self-luminous display panel uses organic electroluminescent materials , when a current passes through the organic electroluminescent material, the luminescent material will emit light, thereby realizing the display function of the display panel. The existing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/342
Inventor 邹宗骏孙莹许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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