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Multi-screen display device

A multi-screen display and multi-screen technology, which is applied to projection devices, instruments, televisions, etc., can solve the problem of not being able to fully suppress the cooling cost of multi-screen display devices

Inactive Publication Date: 2016-01-20
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the cooling cost of the multi-screen display device cannot be sufficiently suppressed.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment approach 1

[0029] figure 1 It is a diagram showing the configuration of the multi-screen display device 1000 according to the first embodiment.

[0030] Such as figure 1 As shown, the multi-screen display device 1000 includes video display devices 100-1, 100-2, 100-3, and 100-4. The video display devices 100 - 1 , 100 - 2 , 100 - 3 , and 100 - 4 have the same configuration, and details will be described later. Hereinafter, each of the video display devices 100 - 1 , 100 - 2 , 100 - 3 , and 100 - 4 is also simply referred to as the video display device 100 .

[0031] The external shape of each video display device 100 is a cuboid. The multi-screen display device 1000 is configured by arranging four video display devices 100 in two stages and two columns.

[0032] The video display devices 100-1, 100-2, 100-3, and 100-4 respectively include figure 2 The screens (screens) 10-1, 10-2, 10-3, and 10-4 are shown.

[0033] The multiscreen display device 1000 includes a multiscreen 10A. S...

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Abstract

The invention provides a multi -screen display device to reduce the cost of cooling.Multi -screen display device (1000) includes video display devices (100-1, 100-2, 100-3, 100-4).Cooling devices (300) and video display devices (100-1, 100-2, 100-3, 100-4) each have semiconductor light sources (20A, 20B, 20C) in the sense of thermalology.

Description

technical field [0001] The present invention relates to a multi-screen display device for displaying video on a multi-screen composed of a plurality of screens. Background technique [0002] Conventionally, discharge lamps have been widely used as light sources for a plurality of projection type video display devices constituting a multi-screen display device. In recent years, with the technical development of LEDs (Light Emitting Diodes, light emitting diodes), the luminance of LEDs has increased, and LEDs have become able to be used as light sources for projection-type video display devices. Hereinafter, the projection type video display device is also simply referred to as a video display device. [0003] The luminance of LEDs is affected by the junction temperature. Therefore, proper cooling of LEDs as light sources is required. LED cooling methods include a forced air cooling method using a radiator and a fan, and a liquid cooling method in which a cooling liquid is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/16H05K7/20H04N5/74
CPCG06F3/1446G03B21/16G06F3/1423
Inventor 菅野直树
Owner MITSUBISHI ELECTRIC CORP