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Back projector and its shielding and fixing unit and method thereof

A technology for fixing devices and screens, which is applied in the parts and electrical components of TVs and color TVs, can solve the problems of low connection strength, inability to achieve seamless splicing of TV walls and ultra-fine seam splicing, and occlusion of rear-projected images. To achieve the effect of high connection strength

Inactive Publication Date: 2006-01-25
北京美富勤科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the screens of rear projection devices mostly adopt side ultra-thin metal frame fixing methods, side straight wedge and side panel riveting fixing methods, and side ladder metal frame fixing technology, etc. After splicing the rear projection devices with these screen fixing methods into a TV wall, There is a non-imaging frame between the display unit and the seamless splicing of the TV wall and ultra-thin seam splicing cannot be realized. At the same time, these screen fixing methods also have weaknesses such as slight occlusion of the rear projection image and low connection strength.

Method used

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  • Back projector and its shielding and fixing unit and method thereof
  • Back projector and its shielding and fixing unit and method thereof
  • Back projector and its shielding and fixing unit and method thereof

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Embodiment Construction

[0014] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0015] figure 2 from behind the screen of the rear projection device, i.e. figure 1 In the opposite direction of the A direction, the view of the observed screen; image 3 It is a top view of the screen of the present invention, that is, a view from direction B; Figure 4 For the screen edge of the present invention figure 2 The cross-sectional view of C-C direction; Figure 5 It is a schematic diagram of a rear projection device adopting the screen fixing device of the present invention.

[0016] The fixing device of the screen 1 of the rear projection device includes a dovetail groove 5 formed on the edge of the screen along the thickness direction, that is, the A direction, and the bottom surface 6 of the dovetail groove 5 is along the direction from the front of the screen to the rear (that is, the A direction) It is inclined from the edge of ...

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Abstract

The back projection equipment screen fixture includes dovetail slots formed in the width direction of screen edge and inwards inclined from front to back; wedged blocks extending from the side plate and with shape, size and position corresponding to the doventail slots for insertion. Thus, the screen is fixed to the side plates. The fixing method and the back projection equipment with the fixture are also provided. The present invention is suitable for display units to be assembled to form the TV wall.

Description

technical field [0001] The invention relates to a screen fixing device of a rear projection device, in particular to a screen fixing device and a fixing method of a rear projection device which can be used to splice into a display unit of a video wall, and a rear projection device with the fixing device. Background technique [0002] Rear projection equipment such as figure 1 As shown, it includes: a screen 1 on which a display image is projected; a side panel 2 surrounding the periphery of the screen 1 and fixedly connected with the screen to support the screen; a projector 3 for generating and projecting an image to the screen. At present, the screens of rear projection devices mostly adopt side ultra-thin metal frame fixing methods, side straight wedge and side panel riveting fixing methods, and side ladder metal frame fixing technology, etc. After splicing the rear projection devices with these screen fixing methods into a TV wall, There is a non-imaging frame between t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/655H04N5/74
Inventor 王瑛琪
Owner 北京美富勤科技发展有限公司