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Display driving integrated circuit and display driving system

A display driver and integrated circuit technology, applied in the field of a display driver system

Inactive Publication Date: 2010-08-25
SILICON WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially problematic is the need to overall change the DAC unit with the role of DDI step representation and channel-to-channel offset

Method used

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  • Display driving integrated circuit and display driving system
  • Display driving integrated circuit and display driving system
  • Display driving integrated circuit and display driving system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and component symbols.

[0069] Fig. 4 is a partial view showing a display driving system according to the present invention.

[0070] Referring to FIG. 4 , the display driving system 400 includes a timing controller 410 having an m-LVDS type interface and a plurality of DDIs 421 to 428 .

[0071] In the multi-point downlink solution, the differential frequency signal DClk and differential data DData generated by the timing controller 410 are transmitted to a plurality of DDIs 421 to 428 . Similar to the differential frequency signal DClk being transmitted to multiple DDIs 421 to 428 in the multipoint downlink scheme in the conventional technology, in the present invention, the differential frequency signal DClk is transmitted in the multipoint downlink scheme. However, unlike the conventional art, in the present invention, the interface bet...

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PUM

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Abstract

Provided is a high-resolution display driving system without a new design of interfaces between a timing controller and DDIs, particularly, without an entire change of a DAC unit having a role of determining gradation representation of DDIs and offsets between channels. The high-resolution display driving system includes a timing controller and a DDI unit. The timing controller generates a differential clock signal and differential data. The DDI unit generates a plurality of converted signals corresponding to the differential data in response to an operation instructing signal, a reset / enable signal, and the differential clock signal. A scheme of data transmission from the timing controller to the DDI unit is at least one of a multi-drop scheme and an m-LVDS (mini low voltage differential signaling) scheme.

Description

technical field [0001] The present invention relates to a display driving integrated circuit (IC), in particular to a display driving IC capable of realizing high resolution and a display driving system with the display driving IC. Background technique [0002] The display device converts the digital signal including image information into an analog signal so that people can watch the image on the display panel. A digital-to-analog converter (DAC) generates an analog signal corresponding to a digital signal by using a resistor string including a plurality of resistors connected in series. In order to convert an N-bit (N is an integer) digital signal into a corresponding analog signal, the resistor string needs to include at least (2 N +1) resistors. [0003] The resolution of the display device is determined according to the diversity and brightness of colors, which can be presented on the display panel through each image element. Color variety and brightness are also rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G2310/027G09G3/3688G09G2370/08G09G3/20G09G3/36H03M1/66
Inventor 安容星金大成韩大根
Owner SILICON WORKS CO LTD