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Backlight module and display device

A technology for backlight modules and display devices, applied in the directions of light guides, optics, optical components, etc., can solve problems such as difficult to solve, and achieve the effects of reducing area, improving efficiency, and improving lighting and shadow problems.

Inactive Publication Date: 2018-08-07
HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

like figure 1 Shown is a cross-sectional structure diagram of a side-entry backlight module in the prior art. The structure of the backlight module includes a printed circuit board 101, an LED lamp 103, and a light guide plate 102. The LED lamp 103 is used to inject light into the light guide plate 102. Light provides a light source for the display device, but due to the restriction of the light emitting angle of the LED lamp 103, the light incident side of the light guide plate 102 will form a bright and dark area, which is the light shadow area 107, and the light shadow area 107 is also called ineffective light emission area, wherein the light shadow area 107 includes the dark shadow area 105, that is figure 1 As shown in the middle triangle area, for side-lit backlight modules, light shadows are more common and difficult to solve

Method used

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Embodiment Construction

[0032] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0033] figure 2 Shown is a cross-sectional structural view of a backlight module in a preferred embodiment of the present invention, wherein the backlight module includes: a printed circuit board 101, a light source 103, and a light guide plate 102;

[0034] The printed circuit board 101 is a support for electronic components and a carrier for electrical connections,...

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Abstract

The invention provides a backlight module and a display device. The backlight module comprises a printed circuit board, a light source and a light guiding plate, wherein the light guiding plate comprises a semi-transmitting and semi-reflecting film layer; the semi-transmitting and semi-reflecting film layer is formed above the light source, is arranged in the light guiding plate, and is used for reflecting and transmitting incident light transmitted from the light source; and the semi-transmitting and semi-reflecting film layer is arranged on one side of the light guiding plate, and is close to the light source. The backlight module has the beneficial effects that the light transmitted from the light source enters a shadow region in a lamp shadow region via a semi-transmitting and semi-reflecting film, the area of the shadow area in the lamp shadow area is reduced, the problem of lamp shadow is solved, and the efficiency of the backlight module is improved.

Description

technical field [0001] The invention relates to the field of display panel manufacturing, in particular to a backlight module and a display device. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) is currently the most widely used display product in the market. Its production process technology is very mature, the product yield rate is high, the production cost is relatively low, and the market acceptance is high. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module. Such as figure 1 Shown is a cross-sectional structure diagram of a side-entry backlight module in the prior art. The structure of the backlight module includes a printed circuit board 101, an LED lamp 103, and a light guide plate 102. The LED lamp 103 is used to inject light into the light guide plate 102. Light provides a light source for the displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133615G02B6/0023
Inventor 郑净远
Owner HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
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