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Illuminating device and liquid crystal display device provided with the same

A technology for lighting devices and lighting bodies, which is applied to the components of lighting devices, lighting devices, lighting and heating equipment, etc., and can solve problems such as lowering of display quality and warping of light guide plate 103

Inactive Publication Date: 2011-05-25
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, when the application of the liquid crystal display device provided with the above-mentioned conventional lighting device is for industrial use, there is a problem that the light guide plate 103 tends to be warped due to heat generated around the liquid crystal display device, and the display quality deteriorates.

Method used

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  • Illuminating device and liquid crystal display device provided with the same
  • Illuminating device and liquid crystal display device provided with the same
  • Illuminating device and liquid crystal display device provided with the same

Examples

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Embodiment Construction

[0035] Below, refer to Figure 1 ~ Figure 4 The lighting device 10 of this embodiment will be described.

[0036] Such as figure 1 As shown, the lighting device 10 of this embodiment is used as a backlight unit installed in a liquid crystal display device, and is configured to generate planar light and cause the light to pass from the back side of the liquid crystal display panel (illuminated body) 20 The liquid crystal display panel 20 is illuminated. In addition, the lighting device 10 of this embodiment is installed in, for example, a liquid crystal display device for industrial use.

[0037] In addition, such as Figure 1 ~ Figure 3 As shown, the lighting device 10 is of a side-light type, and includes at least a box member 1, a reflective sheet 2, a light guide plate 3, an optical sheet 4, and a light source module 5. In addition, it is a structure in which the reflection sheet 2, the light guide plate 3, the optical sheet 4, and the light source module 5 are loaded in the b...

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Abstract

Provided is an illuminating device wherein replacement of a light source is facilitated and generation of luminance nonuniformity is suppressed. An illuminating device (10) is provided with a light source module (5) which is attached to a bottom section (1a) from a rear surface side of a case member (1). On a prescribed section on the bottom section (1a), a through hole (1b) is formed, and a prescribed section of the through hole protrudes to the side of a storing space (10a). An LED (6) is arranged to face a light incoming surface (3a) of a light guide plate (3) by having the LED (6) protrude to the side of the storing space (10a) through the through hole (1b).

Description

Technical field [0001] The present invention relates to a lighting device and a liquid crystal display device equipped with the lighting device. Background technique [0002] Conventionally, there has been known an illuminating device capable of emitting planar light, which is used as a backlight unit for illuminating a liquid crystal display panel of a liquid crystal display device. Illumination devices for such liquid crystal display devices include direct type and side-light type. [0003] In addition, the direct type lighting device refers to a lighting device in which a light source is arranged directly under a liquid crystal display panel. On the other hand, the side-light type illuminating device refers to an illuminating device in which a light guide plate is arranged directly below the liquid crystal display panel and the light source is arranged so as to face the predetermined side end of the light guide plate (for example, refer to Patent Document 1. ). In this side-l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00G02F1/1333G02F1/1335F21Y101/02
CPCF21Y2105/001G02F1/133615F21V19/04G02B6/009F21Y2101/02F21Y2105/10F21Y2115/10
Inventor 矶部宏晶滨田哲也
Owner SHARP KK
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