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Source driver of display

A source driver, display panel technology, applied in the direction of static indicators, instruments, digital-to-analog converters, etc., can solve the problems of complex configuration, high power consumption, large size, etc., to reduce power consumption, size, and size Effect

Inactive Publication Date: 2010-07-07
DONGBU HITEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, due to figure 1 A typical source driver shown in has a complex configuration, so large size and high power consumption are required

Method used

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  • Source driver of display
  • Source driver of display
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Embodiment Construction

[0024] Hereinafter, a brief configuration and operation of a display will be described before describing the present invention.

[0025] Generally, a display includes: a timing controller (not shown), a plurality of source drivers (or column driver circuits) and gate drivers (or row driver circuits) (not shown), and a display panel (not shown). The timing controller controls gate drivers and source drivers, which drive the display panel. The display panel according to the scan signal R provided from the gate driver 1 to R n and the data signal C provided from the source driver 1 to C m to display images, and may include a variety of display panels used between the timing control and the display driving integrated circuit (displaydriving integrated circuit), such as liquid crystal display (LCD) panels (such as thin film transistor (TFT) LCD, super twisted nematic (SuperTwisted Nematic, STN) LCD or Ferroelectric Liquid Crystal Display (OLED,)), Plasma Display Panel (Plasma D...

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Abstract

A source driver of a display including a timing controller, the source driver and a display panel may include a digital-to-analog converter configured to output an analog value corresponding to a digital data signal supplied from the timing controller of the display panel. An amplification unit is configured to amplify the analog value in a switched capacitor mode to produce an amplified result, and to output the amplified result as a driving signal for driving a unit column line of the display panel. Therefore, since area and power consumption can be further reduced compared with a related source driver, costs can be reduced and Electromagnetic Interference (EMI) can be improved by the reduction of power consumption.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2008-0134232 filed on December 26, 2008, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to a display, and more particularly, to a source driver of the display. Background technique [0003] Hereinafter, a general structure of a source driver included in a display will be described with reference to the accompanying drawings. [0004] figure 1 is a circuit diagram of a general source driver including an R-string (R-string) 20 , a switch box (switch box) 30 , a level shifter (level shifter) 40 and a buffer 50 . [0005] about figure 1 Detailed configuration and operation of the source drivers shown in Behzad Razavi, Design of Analog CMOS Integrated Circuits. New York: McGraw-Hill, 2001 and K. Martin and D.A. Johns, Analog Integrated Circuit Design. New York: Wiley, 1997. Therefore, will omit figure 1 A detailed description...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/04
CPCG09G2310/027G09G3/3696G09G2310/0289G09G3/20G09G2330/021G09G2330/06G09G2330/028G09G3/3688G09G2310/0286G09G3/36H03K19/0175H03M1/66
Inventor 李相宪宋南珍
Owner DONGBU HITEK CO LTD