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Backlight module and display device

A technology of backlight module and light-emitting area, applied in optics, nonlinear optics, static indicators, etc., can solve problems such as reducing the display quality of display devices, and achieve the effect of improving the brightness boundary phenomenon and improving the quality.

Inactive Publication Date: 2019-03-26
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] For the direct-lit LED backlight module, the light source is divided into multiple light-emitting areas, and the brightness values ​​of these light-emitting areas can be controlled separately. When there is a brightness deviation between these light-emitting areas, there will be obvious problems in the backlight module The brightness boundary reduces the display quality of the display device

Method used

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Examples

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Embodiment Construction

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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, which belongs to the technical field of display, discloses a backlight module and a display device. The backlight module comprises a light-emitting area including a plurality of light-emitting elements and at least two driving circuits connected with the plurality of light-emitting elements electrically. Areas in which the light-emitting elements connected with the same driving circuits electrically are located are sub areas; and each sub area includes a main body region and at least one sub region. The area in which the light-emitting element connected with the first driving circuit electrically is located is a first sub area; and the area in which the light-emitting element connected with the second driving circuit electrically is located is a second sub area. Besides, thelight-emitting area also includes at least one transition area arranged between the main body region of the first sub area and the main body region of the second sub area; and the transition area includes the sub region of the at least one first sub area and the sub region of the at least one second sub area. Compared with the prior art, the backlight module has the following beneficial effects:the apparent brightness boundary phenomenon between the first sub area and the second sub area can be improved; the boundary is blurred effectively; and the quality of the backlight module is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a backlight module and a display device. Background technique [0002] Currently, LEDs are widely used as backlight sources in liquid crystal display devices. Among them, the backlight module structure mainly has two types: side-type and direct-type. [0003] The side-in LED backlight is to install the LED light source on the side of the light guide plate. After the light emitted by the LED enters the light guide plate, the light is exported through the reflection and scattering of the dots of the light guide plate. The disadvantage of this structure lies in the formed picture. Contrast is relatively poor and local dimming is not possible. [0004] The direct-lit LED backlight has gradually become the mainstream trend in the market because it presents images more accurately and exhibits excellent color and light-dark contrast effects. The direct-type LED back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G09G3/34
CPCG02F1/133603G09G3/3406
Inventor 郭珂杨文彬杨康鹏许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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