Heating structure of coolant for image display

Abstract

This invention relates to a heating structure of a cooling agent of image display devices composed of a picture display device, a projecting mirror device amplifying and projecting images emitted by the picture display device, a connector connecting mechanically the display device and the projecting mirror and a cooling agent injected into the space combined by the connector / the projecting mirror and the image display device to play the role of heat radiation. In order to reduce the pre-heating time on the production line of image display devices, the strip-like heating ring jacketed on the periphery of the connector heats the ring along with introducing power to the ring so as to pre-heat the cooling agent in the connector to reduce the pre-heat time.

Description

Technical field [0001] The present invention relates to a kind of image display equipment, especially a kind of in order to shorten the heat conduction time of the picture tube assembly that the focal length of the image picture like the target picture tube rear-projection television greatly influences, utilizes the belt type heating ring that adds additionally to the inside of connector An image of the coolant being heated shows the heating structure of the coolant in the device. Background technique [0002] Generally speaking, it is impossible to commercialize TVs equipped with picture tubes larger than 36 inches. Therefore, the development and use of mirrors and optical mirrors for the screens of general TVs on the screen is rear projection. TV set. [0003] According to the driving components of such rear projection TVs, TVs are divided into CRT rear projection TVs, LCD rear projection TVs, digital rear projection TVs, etc., but their structures are very similar. [0...

AI Technical Summary

Problems solved by technology

[0013] But, the heat conduction mode of the above-mentioned conventional technology is to heat the coolant by the heat generated by the kinescope, that is, the heat generated by the electron beam emitted by the electron gun hitting the phosphor. Therefore, in order to heat the coolant to make the picture The problem that it takes a long time to warm up the focal length stabilized mirror meter

[0014] Along with the prolongation of the heat conduction time, a longer warm-up time and extended work period are required on the production line, resulting in economic losses. Therefore, there is an urgent need for a picture tube assembly structure of a picture tube rear-projection TV set that shortens the heat conduction time to the greatest extent.

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