Manufacture method of sheet-metal screen panel of back projected television

A manufacturing method and TV technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of high production costs, achieve the effects of saving mold costs, saving non-ferrous metal materials, and reducing production costs

Inactive Publication Date: 2009-12-09
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem of the high production cost of the screen frame of the digital light display rear projection TV set in the prior art, and provide a manufacturing of the sheet metal screen frame of the rear projection TV set which is easy to manufacture and low in production cost method

Method used

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  • Manufacture method of sheet-metal screen panel of back projected television
  • Manufacture method of sheet-metal screen panel of back projected television
  • Manufacture method of sheet-metal screen panel of back projected television

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Embodiment Construction

[0020] figure 1 It shows the sheet metal screen frame of the rear projection TV produced by the present invention, which includes the upper, lower, left and right frame strips bent by the sheet metal process, and these frame strips are welded to form a rectangular screen frame 1 . see figure 2 , image 3 , the inside of the folded edge perpendicular to the plane of the screen frame 1 on the frame strip is provided with a bent back cover fixing strip 2, and the back cover fixing strip 2 is parallel to the plane of the rectangular screen surface frame 1 There are screw holes 4 for locking the back cover on the folded edge, and the double-bending screen pressure strips are provided at intervals on the folded edge parallel to the plane of the screen surface frame 1 on the surface frame strip. Fixing seat 3, the outward flanging on this screen bead fixing seat has the screw hole 5 of locking screen bead. The surface frame strip, the back cover fixing strip 2 and the screen bea...

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Abstract

The invention also discloses a method for manufacturing a sheet metal screen surface frame of a rear-projection TV set, which includes the following steps: making the surface frame strips, making the back cover fixing strips, and making the screen bead fixing seat, the above three steps In no particular order. The next step is the butt joint of the surface frame strips, the connection of the back cover fixing strips, the connection of the screen bead fixing seat, and finally the polishing and finishing, and then the appearance surface treatment. The present invention adopts commonly-used metal plates and utilizes sheet metal technology to make the screen frame of large-size rear-projection TV sets, which greatly saves the cost of molds and non-ferrous metal materials in traditional techniques, reduces production costs, and improves the performance of large-size rear-projection TV sets. Machine market competitiveness.

Description

technical field [0001] The invention relates to a rear-projection television, in particular to a method for manufacturing a sheet metal screen frame of a rear-projection television. Background technique [0002] Rear-projection televisions have large screen frames due to their large size, and known rear-projection frames are all manufactured by injection molds. For such a large injection mold, the mold opening cost is more than one million yuan, which makes the initial investment in product development too large, and the production and sales of rear-projection TVs are small, which increases the production of digital light-display rear-projection TVs. cost. This relationship between input and output is extremely unbalanced, which seriously affects the pace of new product development. "A Digital Light Display Rear Projection and Its Face Frame Manufacturing Method" published on December 15, 2004 proposed a method of using aluminum profiles to manufacture the screen frame of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/64B23P15/00B21D5/00
Inventor 刘小娟
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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