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Back light module and display device

A backlight module and display device technology, which is applied to lighting devices, fixed lighting devices, lighting device components, etc., can solve problems such as increasing the cost of backlight modules, and achieve good display quality, uniform luminance performance, and display quality Enhanced effect

Active Publication Date: 2013-03-27
AMTRAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the backlight module is easy to increase due to the purchase of a large number of light-emitting diodes with similar brightness levels

Method used

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  • Back light module and display device
  • Back light module and display device
  • Back light module and display device

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 is a schematic diagram of a display device according to an embodiment of the present invention, Figure 2A for figure 1 The exploded schematic diagram of the backlight module, Figure 2B for Figure 2A The combined schematic diagram of the backlight module. Please also refer to figure 1 and Figure 2A , in this embodiment, the display device 100 includes a backlight module 200a and a display panel 300, wherein the backlight module 200a is disposed on one side of the display panel 300, for example, located below the display panel 300, to provide a display panel 300 The light source required for display. The display device 100 is, for example, a liquid crystal display device.

[0036] In this embodiment, the backlight module 200a includes a circuit board 210a, at least one first LED element 220 ( Figure 2A Schematically depicts a plurality of), at least one second light emitting diode element 230 ( Figure 2A A plurality of) and a reflective element 240...

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PUM

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Abstract

The invention discloses a back light module and a display device. The back light module comprises a circuit board, at least one first light emitting diode element, at least one second light emitting diode element and a reflecting element, wherein the first and the second light emitting diode elements are respectively arranged on one bearing surface of the circuit board and are electrically connected to the circuit board; the brightness of the first light emitting diode element is larger than the brightness of the second light emitting diode element; the reflecting element is arranged on the circuit board and is exposed out of the first and the second light emitting diode elements; the reflecting element is provided with at least one first reflecting region and at least one second reflecting region; the first and the second reflecting regions are respectively arranged around the first and the second light emitting diode elements; and the reflection efficiency ratio value of the light emitting energy of the first reflecting region relative to the first light emitting diode element is less than the reflection efficiency ratio value of the light emitting energy of the second reflecting region relative to the second light emitting diode element.

Description

technical field [0001] The invention relates to a light source module and a display device, in particular to a backlight module and a display device using the backlight module. Background technique [0002] With the increasing development of the electronic industry, flat panel displays have gradually replaced cathode ray tube displays and become the mainstream of current displays, among which the technology of liquid crystal displays is more sophisticated and popular. Since the liquid crystal display panel of the liquid crystal display cannot emit light, a backlight module is provided as the display light source of the liquid crystal display panel. [0003] Among the light sources of the backlight module, light emitting diodes (Light Emitting Diodes; hereinafter referred to as: LEDs) have the advantages of high brightness, low power consumption, long service life, and slight heat problems. Taking light-emitting diodes as the light source of the direct-lit backlight module, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V23/00F21V7/10F21V7/22G02F1/1333F21Y101/02
Inventor 陈建州
Owner AMTRAN TECH CO LTD
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