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Backlight module and liquid crystal display device using same

A technology for liquid crystal display devices and backlight modules, which is applied in optics, nonlinear optics, instruments, etc., and can solve problems such as separation of reflective sheets, failure of upper bumps 11 to support reflective sheets, structural damage of upper bumps 11, etc.

Inactive Publication Date: 2008-01-16
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the backlight module 100 is turned upside down, the upper bump 11 cannot support the reflection sheet 21 like the lower bump 12
Therefore, the structure of the upper bump 11 is prone to structural damage, which in turn causes the reflection sheet 21 to separate from the supporting structure 10.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Please refer to FIG. 2 , which shows a schematic diagram of a partial structure of a backlight module according to Embodiment 1 of the present invention. The backlight module 101 of this embodiment adopts a supporting mechanism 140 to support a first diffusion sheet 61 in the backlight module 101 . In FIG. 2 , the backlight module 101 includes a light source, a frame 50 , a first diffusion sheet 61 and a second diffusion sheet 62 . In this embodiment, the light source is illustrated by taking a light emitting diode module (LED module) 71 as an example. The LED module 71 provides a point light source to emit a light L. As shown in FIG. The frame 50 includes a bottom panel 51 and a side panel 52 . The bottom plate 51 and the side plate 52 define an accommodating space 54 . The LED module 71 is disposed in the accommodating space 54 . The first diffusion sheet 61 is disposed in the accommodating space 54 and above the LED module 71 . The second diffusing sheet 62 is d...

Embodiment 2

[0087] Please refer to FIG. 4 , which shows a schematic diagram of a partial structure of a backlight module according to Embodiment 2 of the present invention. The difference between the backlight module 102 of the present embodiment and the backlight module 101 of the first embodiment lies in the structure of the support structure 240, the arrangement of the optical film 63 and the second diffusion sheet 62, as for the rest of the same components continue to use the reference numerals, and will not repeat them.

[0088] Besides the first bracket 241 , the second bracket 242 and the third bracket 243 , the supporting structure 240 further includes a fourth bracket 244 . The fourth bracket 244 has a sixth clamping end 86 and a seventh clamping end 87 . The fifth clamping end 85 is movably coupled to the sixth clamping end 86 to clamp the second diffusion sheet 62 above the first diffusion sheet 61 .

[0089] The backlight module 102 also includes an optical film 63, which is...

Embodiment 3

[0092] Please refer to FIG. 5 , which shows a schematic diagram of a partial structure of a backlight module according to Embodiment 3 of the present invention. The difference between the backlight module 102 of this embodiment and the backlight module 101 of Embodiment 1 lies in the structure of the reflection sheet 60, the light source, the supporting structure 340 and the arrangement of the first diffusion sheet 61. , and will not repeat them.

[0093] In this embodiment, the reflection sheet 60 is disposed on the bottom plate 51 and the side plate 52 . The light source is a cold cathode fluorescent lamp (cold cathode fluorescent lamp, CCFL) 72 as an example for illustration, and is disposed between the first diffusion sheet 61 and the reflection sheet 60 .

[0094] In this embodiment, the supporting structure 340 includes a first bracket 341 and a second bracket 342 . The first bracket 341 has a bottom end 80 and a first clamping end 81 . The bottom end 80 is not only u...

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PUM

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Abstract

The invention discloses a backlight module and the liquid crystal display device thereof; the backlight module comprises a light source, a frame, a first diffusion sheet material and a second diffusion sheet material; the light source emits light; the frame has a base plate and a lateral plate; the lateral plate and the base plate are limited in a containing space; the light source is equipped in the containing space; the first diffusion sheet material is equipped in the containing space and is positioned above the light source; the second diffusion sheet material is equipped on the side where the first diffusion sheet material stays far away from the base board; the first diffusion sheet material is virtually separated away from the second diffusion sheet material. After passing through the first diffusion sheet material and the second diffusion sheet material, the light radiates out of the backlight module.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display device using the same, in particular to a backlight module containing two sets of diffusion sheets and a liquid crystal display device using the same. Background technique [0002] With the rapid progress of liquid crystal display (liquid crystal display, LCD) production technology, and its advantages of thinness, lightness, power saving and no radiation, the liquid crystal display is widely used in personal digital assistants (personal digital assistants, PDAs). ), notebook computers, digital cameras, digital video recorders, mobile phones, computer screens and LCD TVs and other electronic products. However, since the liquid crystal display panel in the liquid crystal display is a non-self-illuminating display panel, a light source provided by a backlight module (black light module) is needed to generate a display function. In particular, a large-sized liquid crystal display is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1333G02F1/1335
Inventor 陈炜森
Owner INNOLUX CORP
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