Lamp holder, illuminating device, display device and television receiving device

A technology for holding parts and holding protrusions is applied in the fields of lighting devices, lamp holders, display devices and television receiving devices, which can solve problems such as falling and achieve the effect of improving acquisition efficiency.

Inactive Publication Date: 2011-01-19
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the cold-cathode tube is turned on, the light intensity of the cold-cathode tube inevitably decreases at the lamp holding part, and as a result, a part of the main body is seen as a faint shadow on the liquid crystal panel.

Method used

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  • Lamp holder, illuminating device, display device and television receiving device
  • Lamp holder, illuminating device, display device and television receiving device
  • Lamp holder, illuminating device, display device and television receiving device

Examples

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Embodiment approach 1

[0118] according to Figure 1 ~ Figure 2 Embodiment 1 of the present invention will be described.

[0119] The television receiver TV of this embodiment is such as figure 1 As shown, it includes: a liquid crystal display device 10 ; two front and back cases Ca and Cb that accommodate the liquid crystal display device 10 ; a power supply P; a tuner T and a stand S. The liquid crystal display device (display device) 10 is configured as a horizontally elongated square as a whole, and is housed in a vertical state. The liquid crystal display device 10 such as figure 2 It has a liquid crystal panel 11 as a display panel and a backlight device (illumination device) 12 as an external light source, and they are integrally held by a frame-shaped bezel 13 or the like. In addition, part of each drawing shows an X-axis, a Y-axis, and a Z-axis, and each axis direction is drawn so that it may become the direction shown in each drawing.

[0120] Next, the liquid crystal panel 11 and the b...

Embodiment approach 2

[0188] pass Figure 22 Embodiment 2 of the present invention will be described. In this second embodiment, the position of the reference line L1-A set on the base 14-A is changed. In this second embodiment, the same reference numerals are used for the parts with the same names as those in the above-mentioned first embodiment, and the suffix -A is added at the end thereof, and repeated descriptions of the structures, operations and effects are omitted.

[0189] As described in Embodiment 1, the diffuser plate (not shown) incorporated in the backlight unit 12-A is a member that may undergo thermal expansion or contraction, but which part of the diffuser plate is easy to expand and contract depends on the lighting. Heat distribution when the backlight unit 12-A is turned off. If the heat distribution is uniform, the closer the diffuser is to the center of the screen, the easier it is to expand and contract. However, if the heat distribution is biased, the part of the diffuser t...

Embodiment approach 3

[0193] pass Figure 23 or Figure 24 Embodiment 3 of the present invention will be described. In Embodiment 3, the arrangement of the cold cathode tubes 17-B and the like in the chassis 14-B and the arrangement of the reference line L-B are changed. In this third embodiment, the parts with the same names as those in the first embodiment are given the same reference numerals with the suffix -B added at the end, and repeated descriptions of the structures, functions and effects are omitted.

[0194] Cold cathode tube 17-B as Figure 23 As shown, they are attached to the base 14-B in a state where the longitudinal direction thereof coincides with the short side direction of the base 14-B (diffuser plate), and a plurality of them are arranged parallel to each other. Lamp clips 18-B for holding these cold cathode tubes 17-B are attached to the base 14-B in a state where the longitudinal direction of the main body 27-B coincides with the longitudinal direction of the base 14-B (d...

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PUM

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Abstract

The invention provides a lamp holder, an illuminating device, a display device and a television receiving device. A lamp clip (18) is provided with a main body section (27), which is attached to a chassis (14), and an annular lamp holding section (28) having ends. The annular lamp holding section is arranged on the surface of the main body section (27), opposite to the side of the chassis (14), and holds a cold cathode tube (17) stored in the chassis (14). At least a part of the lamp holding section (28) is formed with the dimension in the longitudinal direction of the cold cathode tube (17) gradually reduced toward cold cathode tube (17).

Description

technical field [0001] The present invention relates to a lamp holder, a lighting device, a display device and a television receiving device. Background technique [0002] For example, a liquid crystal panel used in a liquid crystal display device such as a liquid crystal television does not emit light by itself, so a backlight device is additionally required as an illumination device. Such a backlight device is arranged on the back side of the liquid crystal panel (opposite side of the display surface), and has: a base with an opening on the side of the liquid crystal panel made of metal or resin; a reflection sheet laid in the base; and accommodated in the base as a lamp. A plurality of fluorescent tubes (such as cold-cathode tubes) inside; a plurality of optical components (diffusion sheets, etc.) that are arranged in the opening of the base to efficiently irradiate the light emitted by the cold-cathode tubes to the liquid crystal panel side; and are used to support The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V19/00F21S2/00G02F1/13357F21Y103/00
CPCG02F1/133604F21Y2103/00F21V19/009
Inventor 黑水泰守横田匡史山本修己山本香织
Owner SHARP KK
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