Backlight module and display device

A backlight module and light-incident side technology, which is applied to lighting devices, fixed lighting devices, lighting device components, etc., can solve problems such as easy to generate bright lines, poor picture quality, and affect the display quality of display devices, and achieve Reduce side bright lines and improve picture quality

Active Publication Date: 2018-01-23
BOE OPTICAL SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the narrow width of the light-shielding tape, the light in the side area of ​​the backlight module screen is relatively concentrated (such as figure 1 shown in the middle circle area), bright lines are easily generated here, resulting in poor picture quality, which in turn affects the display quality of the display device

Method used

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

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Embodiment Construction

[0034] In order to reduce the side bright lines of the backlight module and improve the image quality of the backlight module, the embodiments of the present invention provide a backlight module and a display device. In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0035] Such as Figure 2a , Figure 2b , Figure 4 and Figure 5 As shown, the embodiment of the present invention provides a backlight module, including a plastic frame 2 and a light guide plate 4 disposed in the plastic frame 2, and the two parallel non-light-incident side sides of the plastic frame 2 are near the light-incident side One side of the side has a space-avoiding structure (such as the first stepped groove 21 ), and the side of the space-avoiding structure away from the end surface of the light guide plate 4 is closed by a cover structure (such as an adhesive tape ...

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Abstract

A backlight module and a display device are provided. The backlight module includes a plastic frame (2) and a light guiding plate (4) provided within the plastic frame. For each non-incident side of two parallel non-incident sides of the plastic frame, a respective space-keeping structure is provided at an end of a side edge on the non-incident side, with the end of the side edge on the non-incident side being close to a side edge of an incident side; and a side of the space-keeping structure that is away from an end surface of the light guiding plate is sealed with a cover structure. The present arrangement can effectively reduce bright lines at side edges occurring in the backlight module, and thus improve image-display quality of the backlight module.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Currently, backlight modules of liquid crystal display devices generally use LEDs (light-emitting diodes, LEDs for short) as light sources. According to the distribution of light sources, backlight modules can be divided into two types: direct-type and side-type. In the side-entry backlight module, the LED light bar is located at the side end of the light guide plate. This type of backlight module is mainly used in small-sized display devices such as notebooks, palmtop computers and mobile phones. With the continuous progress of LED-related technologies, side-entry Backlight modules have also begun to be applied to larger-sized display devices to bring better visual experience to users. Such as figure 1 As shown, the structure of the side-entry backlight module mainly includes a backplane 51, a plastic fram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V17/10G02F1/13357
CPCG02B6/0088G02B6/0081
Inventor 李文军
Owner BOE OPTICAL SCI & TECH
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