KR960012147A - Variable voltage applied electron gun of color brown tube - Google Patents

Abstract

The present invention relates to a variable voltage applied electron gun of a color brown tube, and more particularly, by introducing a lens system that focuses an electron beam only in a vertical direction between a cathode and an electrostatic focusing lens to match the magnification in the horizontal and vertical directions, thereby improving the resolution and moiré. It is possible to reduce the occurrence of, and is provided opposite the nations having a transverse beam through which different voltages are applied between the cathode and the electrostatic focusing lens.

Description

Variable Voltage Eye Gun in Color CRT

As this is a public information case, the full text was not included.

5 is a configuration diagram of a variable voltage applying electron gun of the present invention;

6 is a perspective view of the vertical focusing electrode of the present invention;

7 is a variable voltage application type electro-optic diagram of the present invention, where (a) is a horizontal direction diagram and (b) is a vertical direction diagram.

Claims (7)

A cathode for emitting an electron beam, a control electrode for adjusting the radiation amount of the electron beam and forming a crossover, an accelerating electrode, and a connecting electrode and an anode for forming a capacitive focusing lens for focusing the electron beam traveling toward the screen; The focusing electrode includes a fixed voltage focusing electrode to which a constant voltage is applied, a variable voltage connection electrode to which a variable voltage is applied in synchronization with a bias signal, and a variable voltage connection electrode to which a variable voltage is applied in synchronization with a deflection signal. According to the position, in the variable voltage stabilized type which horizontally connects the electron beam horizontally and diverges it vertically, the electron beam aperture in a direction parallel to the line connecting the aperture of the electron beam between the cathode and the electrostatic connection lens is perpendicular thereto. The through portions of the electrodes larger than the electron beam through holes in one direction are provided to face each other. Applying a variable voltage of a color picture tube electron gun that form the gong. The color brown tube according to claim 1, wherein a constant connection voltage is applied to one of the two electrodes having different sizes in the horizontal and vertical directions of the through hole, and a voltage equal to the deflection signal is applied to the other electrode. Variable voltage applied electron gun. 2. The variable voltage applying electron gun of claim 1, wherein the through hole has a rectangular shape having a vertical length and a longer horizontal length. The colored CRT tube-type electron gun according to claim 1, wherein the through hole has a key life shape having a longer horizontal length than the vertical length. The variable voltage applying electron gun of claim 1, wherein the color brown tube has an elliptical through-hole having a horizontal length longer than the vertical length. A cathode which emits an electron beam, a control electrode for adjusting the radiation amount of the electron beam and forming a crossover, an accelerating electrode, and a connecting electrode and an anode forming a capacitive connecting lens for connecting the electron beam traveling toward the screen; The connection electrode has a fixed voltage connection electrode to which a constant voltage is applied and a variable voltage connection electrode to which a variable voltage is applied in synchronization with a deflection signal, so that the electron beam is focused horizontally and vertically divergent according to a deflection position. In the voltage applying electron gun, the variable voltage focusing electrode is divided into a first variable voltage connecting electrode and a second variable voltage focusing electrode adjacent to the anode to apply the same voltage, and the fixed voltage connecting electrode is connected to the first variable voltage connecting electrode and the second. It is positioned on the variable voltage focusing electrode and opposes the first variable voltage focusing electrode and the fixed voltage focusing electrode. Each pre-tax jabim applying a variable voltage of a color cathode-ray tube-type electron gun to the electron beam through holes in the direction parallel to lines connecting the through hole is larger than the electron beam in the vertical direction notice this as a feature of the. A cathode for emitting an electron beam, a control electrode for adjusting the radiation amount of the electron beam and forming a crossover, an accelerating electrode, and a focusing electrode and an anode for forming a capacitive connecting lens for connecting the electron beam traveling toward the screen, The connection electrode has a fixed voltage connection electrode to which a constant voltage is applied and a variable voltage focusing electrode to which a variable voltage is applied in synchronization with a deflection signal so that the electron beam is focused horizontally and vertically diverges according to the deflection position. In the applied electron gun, the variable voltage focusing electrode is divided into a first variable voltage focusing electrode and a second variable voltage focusing electrode adjacent to the anode, and the same voltage is applied to the fixed voltage focusing electrode. The same voltage is applied to the fixed voltage focusing electrodes, and the first fixed voltage focusing electrodes are arranged in this order. And the electron beam aperture in a direction parallel to the line connecting the through hole of the three electron beams to a part or the entire opposing surface of the first fixed voltage focusing electrode and the second fixed voltage focusing electrode, respectively, is larger than the electron beam aperture in the vertical direction. Variable voltage applied electron gun of color brown tube. ※ Note: The disclosure is based on the initial application.