Focus regulating device and method for rear-projection TV

A focus adjustment and TV technology, which is applied to color TV parts, TV system parts, TVs, etc., can solve the user's troubles, can not solve the problem of slight color tilt, etc., and achieve the purpose of improving satisfaction and facilitating focus adjustment Effect

Inactive Publication Date: 2006-04-12
LEIJIN ELECTRONIC SHENYANG CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0022] However, if focus adjustment is performed on the first point, as shown in Figure 2, this focus adjustment is to change the static value. Therefore, simply moving all points on the screen by a certain distance in the same direction cannot solve the problem. The problem that the color of a certain interval is slightly tilted
[0023] However, to adjust the focus of 9 points as shown in Figure 2, the user needs to adjust the 9 points individually, thus bringing another troublesome problem to the user

Method used

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  • Focus regulating device and method for rear-projection TV
  • Focus regulating device and method for rear-projection TV
  • Focus regulating device and method for rear-projection TV

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Embodiment Construction

[0051] image 3 It is a block diagram of the focus adjustment device of the rear projection TV of the present invention; Fig. 4 is a representation diagram of the focus adjustment screen of the rear projection TV of the present invention; Figure 5 It is a flow chart of the focus adjustment method of the rear projection TV of the present invention.

[0052] The focus adjustment device of the rear projection TV of the present invention is as image 3 As shown, it is composed of the following parts: the storage unit 100 provided for storing the reference adjustment data of the focus adjustment, and the display unit 700 provided for displaying the adjustment screen of the focus adjustment; In the focus adjustment screen displayed in section 700, the microprocessor 200 is set to control the static (Static) focus adjustment and dynamic (Dynamic) focus adjustment in sequence according to the user's request; according to the control signal of the microprocessor 200, the The focus r...

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Abstract

A rear ¿C projection TV regulation device enabling to carry out unified static focusing regulation and unified dynamic focusing regulation consists of storage unit for storing reference regulation data, display unit and deflection control unit for displaying regulation picture, microprocessor for carrying out static and dynamic focusing regulation, focus regulating unit for carrying out comparison of reference regulation data with former focusing regulation data and for making compensation as per compared result, image processing unit for processing image signal to be displayed on picture.

Description

technical field [0001] The invention relates to image display equipment, in particular to a focus adjustment device and method for a rear projection television. Background technique [0002] A general rear-projection TV (Projection Television) is a device that uses three cathode ray tubes (CRTs) of red, green and blue (R, G, B) to magnify the image on a large screen for display. It has become an important issue to optimize and configure the picture tubes composed of three cathode ray tubes (CRT) to be synchronized so that red R (Red), green G (Green) and blue B (Blue) have the same three hues. [0003] The picture quality of this rear-projection TV is composed of white uniformity W / U (White Uniformity), brightness uniformity B / U (Bright Uniformity), focus (Convergence), focus (Focus), distortion (Distortion) and other components. [0004] Here, focusing means that the red R (Red), green G (Green), and blue B (Blue) electron beams emitted by the electron gun are focused to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/28H04N5/74
Inventor 申京雨李美瑛
Owner LEIJIN ELECTRONIC SHENYANG CO LTD
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