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US 7,609,239 B2Granted
Display control system of a display panel and control method thereof
AssigneePrinceton Technology Corporation
InventorHwa-Hsiang Chang
Life of this patent
Estimating the term…
Abstract
When electric current is provided to a scan line of a display panel, electric current flowing from an initial end to a final end of the scan line is gradually reduced because of resistance consumption, resulting in lower brightness on both left and right sides of the display panel. Therefore, data line driving signals provided to the display panel are compensated for solving such a problem.
Claims15
A display control system of a display panel, the display control system comprising:
- an image control circuit for generating a data signal and a scan signal;
- a compensation circuit coupled to the image control circuit for generating a compensation signal according to the distribution and magnitude of currents flowing through scan lines of the display panel;
- and
- a driver circuit coupled to the image control circuit and the compensation circuit for outputting data line driving signals to data lines of the display panel according to the compensation signal and the data signal and for outputting scan line driving signals to the scan lines of the display panel according to the scan signal to drive the display panel to display images.
1 more element
A flat display comprising:
- a display panel for displaying images;
- and
- a display control system comprising:
- an image control circuit coupled to the display panel for generating a data signal and a scan signal;
- a compensation circuit coupled to the image control circuit for generating a compensation signal according to the distribution and magnitude of currents flowing through scan lines of the display panel;
- and
- a driver circuit coupled to the display panel, the image control circuit, and the compensation circuit for outputting data line driving signals to data lines of the display panel according to the compensation signal and the data signal and for outputting scan line driving signals to the scan lines of the display panel according to the scan signal to drive the display panel to display images.
4 more elements
A display control system of a display matrix, the display control system comprising:
- an image control circuit for generating a data signal and a scan signal;
- a compensation circuit for generating a compensation signal according to a predetermined look-up table, wherein the look-up table is generated according to the distribution and the magnitude of currents flowing through the scan lines of the display matrix;
- and
- a driver circuit coupled to the image control circuit and the compensation circuit for outputting data line driving signals to data lines of the display matrix according to the compensation signal and the data signal and for outputting scan line driving signals to scan lines of the display matrix according to the scan signal to drive the display matrix to display images.
1 more element
A flat display comprising:
- a display panel for displaying images;
- and
- a display control system comprising:
- an image control circuit coupled to the display panel for generating a data signal and a scan signal;
- a compensation circuit coupled to the image control circuit for generating a compensation signal according to a predetermined look-up table, wherein the look-up table is generated according to the distribution and the magnitude of currents flowing through the scan lines of the display panel;
- and
- a driver circuit coupled to the image control circuit and the compensation circuit for outputting data line driving signals to data lines of the display panel according to the compensation signal and the data signal and for outputting scan line driving signals to scan lines of the display panel according to the scan signal to drive the display panel to display images.
4 more elements
A method for compensating driving signals of a display panel, the method comprising:
- generating a data signal and a scan signal;
- generating a compensation signal according to the distribution and magnitude of currents flowing through scan lines of the display panel;
- and
- outputting data line driving signals to data lines of the display panel according to the compensation signal and the data signal and outputting scan line driving signals to the scan lines of the display panel according to the scan signal.
1 more element
A method for compensating driving signals of a display panel, the method comprising:
- generating a data signal and a scan signal;
- generating a compensation signal according to a predetermined look-up table, wherein the look-up table is generated according to the distribution and the magnitude of currents flowing through the scan lines of the display panel;
- and
- outputting data line driving signals to data lines of the display panel according to the compensation signal and the data signal and outputting scan line driving signals to scan lines of the display panel according to the scan signal.
1 more element
Dependencies are inferred from the claim text.