KR20060071191A - Method of processing convergence data reset in a projection tv - Google Patents

Abstract

 The present invention relates to a method of processing reset of data for convergence correction in projection television. The method of the present invention provides a method of adjusting convergence of a projection TV, the method comprising: providing a convergence adjustment menu when receiving a remote control signal and adjusting convergence; Setting a default value with the data that finally stored the convergence size and position when selecting a convergence reset on the convergence adjustment menu screen; If a convergence size is selected on the convergence adjustment menu screen, adjusting a convergence size from a default value set in the convergence reset; And selecting a convergence position on the convergence adjustment menu screen, and adjusting the convergence position from the default value set in the convergence reset.

Therefore, according to the present invention, by setting the convergence adjustment value as the final data value by the convergence reset as a default, the problem that it is difficult for the user to adjust as the number of variable items increases due to the interoperability between each item is solved. Can be adjusted.

Convergence, Projection TV, Calibration, Reset, Convergence Position, Convergence Size

Description

METHOOD OF PROCESSING CONVERGENCE DATA RESET IN A PROJECTION TV}             

1 is a schematic diagram showing the configuration of a typical projection TV,

2 is a block diagram showing a conventional convergence adjustment circuit in the projection TV;

3 is a block diagram showing a convergence adjustment circuit according to the present invention;

4 is an example of a convergence adjustment screen according to the present invention;

5 is a flowchart illustrating a convergence adjustment procedure according to the present invention.

<Description of the symbols for the main parts of the drawings>

302,308: EEPROM 304: Micom

306: convergence module

The present invention relates to a convergence adjustment of a projection TV, and more particularly, to a method of processing reset of data for convergence correction in projection television.

In general, a projection TV is a device in which the colors of R, G, and B are projected onto a screen by using a CRT, so that an image is displayed on the screen. About 7 inches of red (R), green (G), and blue (B) The CRTs are enlarged to a large screen (approximately 30 "to 65") with spaces of 15 cm each to provide a large screen. The emotional quality of the projection TV is determined by various items such as white uniformity (W / U), luminance uniformity (B / U), convergence, focus, and distortion. Here, convergence means that the R, G, and B beams emitted by the electron gun are collected at a point on the screen by the magnetic field of the deflection yoke, but the beam is not deflected as desired due to the abnormality of the yoke or the influence of the geomagnetic field. Occurs, color blurring occurs on the screen.

1 is a schematic diagram showing the overall configuration of a typical projection TV.

In general, the projection TV screens the circuit unit 110 for receiving and processing an image signal, the R / G / B CRTs 122, 124, 126 for projecting the output signal of the circuit unit, and the light of the projection body, as shown in FIG. It consists of an optical unit 130 projecting on. The circuit unit 110 includes an RF tuner 111 for receiving a radio (RF) television broadcast signal, an IF 112, a deflection unit 113, an image processor 114, an audio processor 115, and a remote controller receiver ( 116, the microcomputer 117, the OSD 118, the switching / amplifier 119, and the like, and supply an image signal and a deflection signal to the R / G / B CRTs 122, 124, and 126, respectively. The projection images of the R / G / B CRTs 122, 124, and 126 are reflected by the reflection mirror 132 and then enlarged by the rear projection screen 134.

2 is a block diagram showing a conventional convergence adjustment circuit in the projection TV, the conventional automatic convergence adjustment circuit inputs a pattern generating unit 220, a video signal or a signal generating unit signal for generating a test pattern for convergence After receiving and amplifying, the switching / amplifier 116 provided to the CRT and the R, G, and B CRTs 122, 124, 126, the screen 134, and the screen 134, which receive and display the RGB signals, are respectively installed and aligned. A position detection unit 202, 204 for detecting the position of the pattern, and a convergence correction unit 210 for controlling the convergence yoke according to the output of the position detection unit 202, 204.

Referring to FIG. 2, the position value is obtained by the output signals of the position detection units 202 and 204 provided at the periphery of the screen 134, the convergence error value is obtained using the position value, and then the convergence is corrected according to the calculated convergence error value. do.

However, in the conventional convergence adjustment method, since there is no method of resetting and initializing the convergence data, there is a problem that it is very inconvenient to adjust the size and position of the convergence. That is, in the related art, it is a method of directly inputting the variable of data corresponding to the adjustment item of the user for the entire range, and the difficulty of adjusting by the user as the variable of data of the convergence module increases due to the interoperability between the items. There is a point.

The present invention has been proposed to solve the above problems. In the projection TV, the user can adjust the convergence more conveniently and accurately by using the converged data adjusted for each set during the operation of the convergence TV. It is an object of the present invention to provide a data reset processing method for convergence correction.

According to an aspect of the present invention, there is provided a method of adjusting convergence of a projection TV, the method comprising: providing a convergence adjustment menu when receiving a remote control signal and performing convergence adjustment; Setting a default value with the data that finally stored the convergence size and position when selecting a convergence reset on the convergence adjustment menu screen; If a convergence size is selected on the convergence adjustment menu screen, adjusting a convergence size from a default value set in the convergence reset; And selecting a convergence position on the convergence adjustment menu screen, and adjusting the convergence position from the default value set in the convergence reset.

Here, the convergence adjustment menu screen may be a convergence reset, a convergence size, a convergence position, and an item may be selected by inputting a corresponding number.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

3 is a block diagram illustrating a convergence adjustment circuit according to the present invention, wherein the convergence adjustment circuit of the present invention includes a nonvolatile memory 302 connected to a microcomputer 304, a microcomputer 306, and a convergence module 306. FIG. And a nonvolatile memory 308 coupled to the convergence module 306. Although not shown in FIG. 3 to avoid repetition, a conventional projection TV configuration such as an OSD screen for displaying a convergence correction menu is required as it is shown in FIG. 1.

4 is an example of the convergence adjustment screen according to the present invention, Figure 5 is a flow chart showing a convergence adjustment procedure according to the present invention.

Referring to FIG. 5, when the power of the projection television to which the present invention is applied is turned on, the television may transmit a remote control signal and a key input of the main body to the microcomputer 304 (501 and 502).

The microcomputer 504 analyzes the key value received from the remote controller and displays a menu screen for convergence adjustment using the OSD as shown in FIG. 4 when the convergence adjustment key is used (503 and 504).

4, the convergence adjustment menu includes "1. convergence reset", "2. convergence size", "3. convergence position", and the like. The user sees the menu screen and inputs the desired number of functions through the remote control.

When the user enters a convergence reset, the microcomputer 304 transfers the data finally stored about the convergence size and position to the convergence module 306 to set the default values for the convergence size and position (505 and 506).

If the convergence adjustment is not completed, the convergence menu screen is provided again, and when the user inputs the convergence size on the menu screen, the convergence size is adjusted from the default value set by the reset (508, 509).

If the convergence adjustment is not completed, the convergence menu screen is provided again, and when the user inputs the convergence position on the menu screen, the convergence position is adjusted from the default value set by the reset (510, 511).

After the convergence adjustment process, the projection TV provides a clear screen according to the adjusted convergence (507).

As described above, according to the present invention, by setting the convergence adjustment value as a final data value by default of convergence reset, a problem that is difficult for the user to adjust as the number of variable items increases due to interoperability between each item is solved. Even convergence can be adjusted accurately and easily.

Claims (3)

In the convergence adjustment method of the projection TV, Receiving a remote control signal and providing a convergence adjustment menu when the convergence adjustment is performed; Setting a default value with the data that finally stored the convergence size and position when selecting a convergence reset on the convergence adjustment menu screen; If a convergence size is selected on the convergence adjustment menu screen, adjusting a convergence size from a default value set in the convergence reset; And And selecting a convergence position on the convergence adjustment menu screen, and adjusting the convergence position from the default value set in the convergence reset. The method of claim 1, And said convergence adjustment menu screen is a convergence reset, a convergence size, and a convergence position. The method of claim 1, And said convergence adjustment menu screen selects an item by inputting a corresponding number.

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