Flat panel display having a horizontal deflection electrode with horizontally oriented electron beam deflection areas
AssigneeLG. Philips Displays Korea Co., Ltd.
InventorsSung Woo Ko, Nam Jae Koh, In Jue Kim
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Abstract
The present invention relates to a flat panel display, and more particularly, to a flat panel display in which the main skeletal structure of a horizontal deflecting electrode is arranged in a horizontal direction to enhance structural strength and the structure of an electrode to which voltage is applied is shaped symmetric to eliminate over-converging of electron beam.
Claims7
A flat panel display comprising:
- at least one filament cathode,
- a control electrode,
- a signal modulation electrode,
- a focusing electrode,
- a horizontal deflection electrode,
- a vertical deflection electrode, and
- a fluorescent screen on which fluorescent material is coated,
- wherein the horizontal deflection electrode has an electron beam deflection area formed by a plurality of electrodes to which different voltages are applied, the electron beam deflection area is X-axis symmetric and Y-axis symmetric, and the electron beam deflection areas are connected to each other along a horizontal direction, and wherein the electron beam deflection areas are separated vertically, the electron beam deflection areas being formed by a plurality of electrodes to which different voltages are applied.
A flat panel display comprising:
- at least one filament cathode,
- a control electrode,
- a signal modulation electrode,
- a focusing electrode,
- a horizontal deflection electrode,
- a vertical deflection electrode and
- a fluorescent screen on which fluorescent material is coated, wherein the horizontal deflection electrode has an electron beam deflection area formed by a plurality of electrodes to which different voltages are applied, the electron beam deflection area is X-axis symmetric and Y-axis symmetric, and the electron beam deflection areas are connected to each other in a horizontal direction,
- wherein the horizontal deflection electrode has a main skeletal structure arranged in a horizontal direction, and comprises a plurality of hook-shaped electrodes consisting of a first group of electrodes each having a hook-shaped bent portion arranged upward and a second group of electrodes each having a hook-shaped bent portion arranged downward, the first group of electrodes oppositely facing the second group of electrodes in symmetry.
A flat panel display comprising filament cathodes, a control electrode, signal modulation electrode, a focusing electrode, a horizontal deflection electrode, a vertical deflection electrode and a fluorescent screen on which fluorescent material is coated,
- wherein the horizontal deflection electrode has a main skeletal structure arranged in a horizontal direction,
- a hook-shaped electrode projecting from the main skeletal structure includes a projecting portion connected to the main skeletal structure and a bent portion bent in the horizontal direction, and
- an inside of the hook-shaped electrode is X-axis symmetric, Y-axis symmetric and point symmetric with respect to center thereof.
Dependencies are inferred from the claim text.