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Direct type backlight module and liquid crystal display

A backlight module, direct type technology, used in instruments, optics, nonlinear optics, etc., can solve the problems of surrounding dark frames and corner dark spots, and achieve the effect of avoiding bright and dark blocks

Active Publication Date: 2015-12-30
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the design of this kind of inclined side panel usually has a dark band at the corner part between the inclined side panel and the bottom panel of the back frame, so that there are dark spots around the dark frame and corners

Method used

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  • Direct type backlight module and liquid crystal display
  • Direct type backlight module and liquid crystal display
  • Direct type backlight module and liquid crystal display

Examples

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, the embodiments are provided to explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to particular intended uses.

[0027] In the drawings, the thicknesses of layers and regions are exaggerated for device clarity. Like reference numerals refer to like elements throughout the drawings.

[0028] It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another....

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PUM

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Abstract

The invention discloses a direct type backlight module which comprises a back frame (10) and at least two light bars, wherein the back frame (10) comprises a base plate (11) and inclined plates (12) arranged on the edges of the base plate (11); the included angle between each inclined plate (12) and the base plate (11) is an obtuse angle; the light bars are distributed on the base plate (11) at intervals; the distances between the edge light sources of the light bars and the edges of the corresponding inclined plates (12) which the light bars face towards are different. The invention further discloses a liquid crystal display comprising the direct type backlight module. According to the invention, first light sources on first light bars and second light sources on second light bars are arranged at unequal intervals, so that the problems of dark frames on the periphery and dark spots at corners, caused by dark areas at a bevel part between the inclined plates and the base plate of the back frame can be solved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a direct-lit backlight module and a liquid crystal display. Background technique [0002] With the evolution of optoelectronics and semiconductor technology, it has also led to the vigorous development of Flat Panel Displays. Among many flat panel displays, Liquid Crystal Displays (LCD for short) have high space utilization efficiency, low power consumption, no radiation and Many superior characteristics, such as low electromagnetic interference, have been applied in all aspects of production and life. [0003] A liquid crystal display usually includes a liquid crystal panel and a backlight module disposed opposite to each other, wherein the backlight module provides a uniform surface light source to the liquid crystal panel so that the liquid crystal panel displays images. According to different light incident methods, backlight modules are generally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133611
Inventor 樊勇张简圣哲
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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