Backlight module and display device using same

A technology for backlight modules and display devices, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as insufficient color saturation and insufficient color gamut coverage, and achieve the effect of high color saturation

Inactive Publication Date: 2011-12-28
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is known that there are several different designs of using light-emitting diodes as backlight sources. One of them is to use the blue light emitted by the blue light diode chip to excite the phosphor to produce yellow light to form white light. The main disadvantage of this method is that the coverage of the color gamut is not enough. Wide, resulting in insufficient color saturation

Method used

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  • Backlight module and display device using same
  • Backlight module and display device using same
  • Backlight module and display device using same

Examples

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Embodiment Construction

[0044] figure 1 It is a schematic cross-sectional view of a display device according to an embodiment of the present invention. Please refer to figure 1 The display device 100 includes a backlight module 101 and a display panel 102 , wherein the display panel 102 is, for example, a liquid crystal display panel or other non-self-illuminating display panels, and is disposed above the backlight module 101 .

[0045] The backlight module 101 includes a frame 110 , a light guide plate 120 , a light source module 130 and an optical film 140 , wherein the light guide plate 120 is disposed on the frame 110 and has a light incident surface 122 and a light output surface 124 adjacent to each other. The light source module 130 includes a circuit board 132 and a light emitting element 134 , wherein the circuit board 132 is disposed between the frame 110 and the light guide plate 120 , and the light emitting element 134 is disposed on the circuit board 132 corresponding to the light incid...

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PUM

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Abstract

An exemplary backlight module includes a frame, a light guide plate, a light source module and an optical film. The light guide plate is arranged on the frame and includes a light-incident surface and a light-emitting surface adjacent to the light-incident surface. The light source module includes a circuit board arranged between the frame and the light guide plate board, and a light emitting element arranged on the circuit board and facing the light-incident surface. The optical film includes a wavelength shifting portion arranged between the light emitting element and the light guide plate, a second extending portion arranged between the light guide plate and the frame, and a first extending portion connected between the wavelength shifting portion and the second extending portion and arranged between the light guide plate and the circuit board. A display device equipped with the backlight module is also provided.

Description

technical field [0001] The invention relates to a backlight module, and in particular to a backlight module capable of providing a light source with high color saturation and a display device using the backlight module. Background technique [0002] A liquid crystal display (LCD) is mainly composed of a liquid crystal panel and a backlight module. It should be noted that since the liquid crystal injected into the liquid crystal panel does not emit light itself, the liquid crystal panel must be illuminated by the surface light source provided by the backlight module, so that the liquid crystal display can achieve the display effect. It can be seen that the backlight module plays a very important role in the liquid crystal display. [0003] Most of the current backlight modules use cold cathode fluorescent tubes (Cold Cathode Fluorescent Lamp, CCFL) as the light source. , LED) has gradually replaced the cold cathode fluorescent tube as the light source of the backlight modul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V9/00F21V17/00G02F1/13357
CPCG02F1/133615F21V17/00G02B6/0091F21V9/00G02B6/0023G02F1/1336G02B6/0011G02F2001/133614F21S8/00G02F1/133614
Inventor 郑景鸿黄达人
Owner AU OPTRONICS CORP
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