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Display control system of display device and control method thereof

A display device and display control technology, applied in lighting devices, static indicators, instruments, etc., can solve the problems of insufficient brightness on the left and right sides of the display panel, uneven brightness and darkness of the display panel, poor uniformity of pixel brightness, etc.

Inactive Publication Date: 2007-10-03
PRINCETON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the driving current distribution of organic light-emitting diodes is uneven, it will cause defects such as uneven brightness and darkness on the display panel, or problems such as insufficient brightness on the left and right sides of the display panel.
Especially with the production of large-size panels, poor pixel brightness uniformity on the display panel may cause differences between the grayscale value of the entire display panel and the grayscale value sent by the driving circuit, and even cause image distortion

Method used

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  • Display control system of display device and control method thereof
  • Display control system of display device and control method thereof
  • Display control system of display device and control method thereof

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Embodiment Construction

[0020] The present invention solves the problem that the current of the scan line gradually decreases from the start end to the terminal end by compensating the data driving signal, resulting in uneven current distribution.

[0021] Please refer to Figure 5; Figure 5 is a schematic diagram of the display control system 2 of the present invention. The display control system 2 includes a display panel 10, an image control circuit 12, a driving circuit 24, a compensation circuit 26 and a current meter 28. The galvanometer 28 is used to measure the distribution of current fed back from the scan line of the display panel 10. The image control circuit 12 transmits a control signal to the compensation circuit 26 according to the measurement result of the galvanometer 28. The compensation circuit 26 generates a compensation signal according to the current distribution of the scan lines of the display panel 10. In addition to receiving the data signal and scanning signal of the image contr...

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Abstract

The present invention relates to a display control system of display unit and its control method. It is characterized by that when the current is provided for scanning line of display panel, the current of starting end and current of terminal end of said scanning line are different by means of impedance consumption, so that the luminances of two sides of said display panel are deficient, therefore said invention can compensatively provide data drive current for said display panel so as to resolve said problem.

Description

Technical field [0001] The invention relates to a display control system, in particular to a display control system of a display device. Background technique [0002] The organic light emitting diode (OLED) itself is a current-driven component, and its luminous brightness is determined according to the magnitude of the passing current. Currently, organic light emitting diodes are used in matrix display panels by controlling the organic light emitting diodes. The size of the drive current to achieve the effect of displaying different brightness (also called grayscale value). [0003] Please refer to FIGS. 1 and 2; FIG. 1 is a schematic diagram of the display control system 1 in the prior art, and FIG. 2 is a schematic diagram of the display panel 10 of the control system 1 shown in FIG. 1. The display control system 1 includes a display panel 10, an image control circuit 12 and a driving circuit 14. The image control circuit 12 generates data signals and scan signals. The driving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/30G09G3/20H05B33/08H05B33/14G09G3/3208H05B44/00
Inventor 张华享
Owner PRINCETON TECH CORP