Liquid-crystal television set
AssigneeFunai Electric Co., Ltd.
InventorTakuya Uehara
Life of this patent
Estimating the term…
Abstract
A single IC-chip includes a video processor, a panel processor, an OSD circuit, a CPU, and a timing controller. A memory 18 stores one test pattern datum that is formed of one font datum of X dots in width and Y dots in height in order to test the position of any bright point, dark point, bright line or dark line on the screen of the liquid crystal panel. At a test step, the CPU acquires the test pattern datum from the memory, and a test pattern is created by the OSD circuit so as to display the test pattern at any desired position on the screen of the liquid crystal panel and to simultaneously display the address values of the origin of the display position of the test pattern.
Claims6
A liquid-crystal television set comprising:
- a video processor to which an analog data signal is inputted;
- a panel processor;
- an OSD circuit;
- a CPU;
- a timing controller that controls a drive unit provided on a liquid crystal panel;
- and
- a memory that is configured as either one of an EEPROM and a flash memory, and is externally mounted, the memory storing a test pattern datum that is configured as a font datum of 16 dots in width and 20 dots in height, and has display color invertedly highlighted every fifth dot in both the heightwise direction and the widthwise direction, for testing a position of any improper part including any one of bright point, dark point, bright line and dark line on a screen of the liquid crystal panel,
- wherein the video processor, the panel processor, the OSD circuit, the CPU, and the timing controller are implemented in a single IC-chip, and
- wherein the CPU acquires the test pattern datum from the memory and controls the OSD circuit to create a test pattern to be displayed at any desired position on the screen of the liquid crystal panel and to display address values of an origin of the position where the test pattern is displayed, when testing the liquid crystal panel.
A liquid-crystal television set comprising:
- a video processor to which an analog data signal is inputted;
- a panel processor;
- an OSD circuit;
- a CPU;
- a timing controller that controls a drive unit provided on a liquid crystal panel;
- and
- a memory that stores a test pattern datum that is configured as a font datum of X dots in width and Y dots in height, for testing a position of any improper part on a screen of the liquid crystal panel,
- wherein the video processor, the panel processor, the OSD circuit, the CPU, and the timing controller are implemented in a single IC-chip, and
- wherein the CPU acquires the test pattern datum from the memory and controls the OSD circuit to create a test pattern to be displayed at any desired position on the screen of the liquid crystal panel and to display address values of an origin of the position where the test pattern is displayed, when testing the liquid crystal panel.
Dependencies are inferred from the claim text.