Light source device, image display device and television receiver device

A light source device and light source technology, applied in installation, optics, connection components, etc., can solve the problems of high calorific value, shortened life of light-emitting diodes, low light output and low current, and achieve temperature rise suppression, simple maintenance, position change, and increase The effect of a large contact area

Inactive Publication Date: 2015-05-13
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a light emitting diode is used, the amount of light emitted is relatively low relative to the amount of current supplied, so the amount of heat generated increases in proportion to the amount of light emitted, and there is a possibility that the life of the light emitting diode is shortened due to the high amount of heat generated. question

Method used

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  • Light source device, image display device and television receiver device
  • Light source device, image display device and television receiver device
  • Light source device, image display device and television receiver device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1-1

[0137] image 3 Is a cross-sectional view showing the structure of an image display device including a light source device according to Embodiment 1-1 of the present invention, Figure 4 It is a schematic perspective view of a part of the light source device decomposed, Figure 5 It is a perspective view showing the structure of the light source unit of the light source device of the image display device according to Embodiment 1-1 of the present invention.

[0138] The image display device 1 of the present invention includes: a display portion 70 (liquid crystal panel H) having a display surface for displaying images on the front side; and a light source device A (backlight device), the light source device A including the display portion The light source unit 10 on the rear side of 70; and a housing 71 (C, D) that covers the periphery of the display portion 70 and the rear side of the light source device A.

[0139] The display unit 70 includes: a display panel 72 having a display ...

Embodiment approach 1-2

[0168] Picture 10 It is a cross-sectional view of a main part showing a state in which the light source unit 10 is held by the holder 6 in the image display device of the embodiment 1-2.

[0169] On the other surface 2b of the light emitting diode substrate 2, a plurality of locking portions 20, 20,... 20 for holding the light source unit 10 to the holder 6 are provided at a plurality of locations. The locking portion 20 is made of metal and can be elastically deformed. The locking portion 20 is obtained by bending a plate material. For example, the elongated plate material is bent symmetrically with respect to the center in the longitudinal direction, and the short side direction is fixed to the other surface 2 b along the longitudinal direction of the light emitting diode substrate 2.

[0170] That is, the locking portion 20 is composed of a base 20c and a pair of crimping pieces 20d, 20d, wherein the base 20c is the center portion in the longitudinal direction of the locking p...

Embodiment approach 1-3

[0178] Picture 11 It is a cross-sectional view of a main part showing a state in which the light source unit 10 is held by the holder 6 in the image display device according to Embodiment 1-3 of the present invention.

[0179] On the other surface 2b of the light emitting diode substrate 2, a plurality of locking portions 20, 20,... 20 for holding the light source unit 10 to the holder 6 are provided at a plurality of locations. The locking portion 20 is made of metal and can be elastically deformed. The locking portion 20 is obtained by bending a plate material. For example, a long-shaped plate material is bent symmetrically with respect to the center of the long side direction, and the short side direction is fixed to the other surface 2b along the long side direction of the light emitting diode substrate 2.

[0180] Specifically, the locking portion 20 is composed of a flat base 20f, a pair of crimping pieces 20g and 20g, and anti-detachment portions 20h, 20h, wherein the base...

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Abstract

Disclosed is an image display device, a television receiver device, and a light source device such that substrates can be electrically connected even if said substrates are separated by more than a prescribed distance, or are in closer proximity than a prescribed distance. A light source unit with light emitting diodes arranged in rows on one surface of a light emitting diode substrate (2) is provided with latching sections (20) on the other surface (2b) of the light emitting diode substrate (2). The locking sections (20) are latched onto latching slits (63, 63... 63) in a holding body (6) for holding the light source unit, allowing the light source unit to slide along one surface of the holding body (6).

Description

Technical field [0001] The present invention relates to a light source device, an image display device and a television receiver including the light source device. Background technique [0002] For example, image display devices such as liquid crystal televisions include so-called direct-type image display devices and edge-light type display devices. Among them, the direct-type image display device has a fluorescent tube of a backlight arranged directly below a liquid crystal panel for image display. On the plane of the edge light type image display device, the fluorescent tubes are only arranged on two sides or one side of the light guide plate, and the light incident on the light guide plate is irradiated to the liquid crystal panel. However, in the direct type and edge-light type image display devices using fluorescent tubes as described above, there are problems of uneven temperature rise caused by fluorescent tubes and low light utilization efficiency. [0003] In response to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCF16B5/126G02B7/008G02F1/133603G02F1/133608
Inventor 大宫佑贵川村优贵渡边武史石合广和竹内秀仁香月正也篠原克己
Owner SHARP KK
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