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Display driving circuit, source driver, display device and operating method thereof

A source driver and display driver technology, applied in static indicators, instruments, etc., can solve the problems of increasing the manufacturing cost of the display driver circuit and increasing the area of ​​​​the bare chip.

Inactive Publication Date: 2012-07-18
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to better facilitate charge sharing, switches are also provided in the display driving circuit, thereby increasing the manufacturing cost of the display driving circuit, and also increasing the die area occupied by the display driving circuit

Method used

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  • Display driving circuit, source driver, display device and operating method thereof
  • Display driving circuit, source driver, display device and operating method thereof
  • Display driving circuit, source driver, display device and operating method thereof

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Embodiment Construction

[0030] Certain embodiments of the inventive concept will now be described in some additional detail with reference to the accompanying drawings. However, the inventive concept can be implemented differently and should not be construed as limited to the illustrated embodiments. Throughout the written specification and drawings, the same reference numerals are used to designate the same or similar elements.

[0031] figure 1 is a block diagram of a display device 1000 according to an embodiment of the inventive concept. refer to figure 1 , the display device 1000 generally includes a panel 1100 for displaying images and a driving circuit for driving the panel 1100 .

[0032] The driving circuit may include: a source driver 1200, driving a plurality of data lines DL1 to DLm of the panel 1100; a gate driver 1300, driving a plurality of gate lines GL1 to GLn of the panel 1100; a timing controller 1400, generating The control signals CONT1 and CONT2 of the electrode driver 1200 ...

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PUM

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Abstract

The invention provides a display driving circuit, a source driver, a display device and an operating method thereof. The display driving circuit includes a buffer unit receiving gradation voltages and generating data signals that drive a panel. A first buffer unit includes "M" main buffers corresponding to M data lines of the panel and a second buffer unit comprises "N" sub buffers, N being less than M. A first switch unit controls a transmission path along which the gradation voltages are applied to the buffer unit, and a second switch unit controls a transmission path along which the data signals are supplied to the data lines. Switches in the second switch unit are turned ON during charge sharing.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2011-0000549 filed in the Korean Intellectual Property Office on Jan. 4, 2011, the subject matter of which is hereby incorporated by reference. technical field [0002] The inventive concepts relate to display driving circuits and methods of driving displays using such circuits. More particularly, the inventive concept relates to a display driving circuit performing polarity inversion driving, a display device including such a display driving circuit, and a method of operating such a display driving circuit. Background technique [0003] Certain displays (eg, flat panel displays) are widely employed in consumer electronics devices (eg, computers, mobile handsets, and monitors). A liquid crystal display (LCD) is a type of flat panel display. In an LCD, for example, a plurality of pixels are arranged on an image surface of a panel. An image is displayed on the panel when a pixel of a plurality of ...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/3688G09G2310/0297G09G2330/023G09G3/3614G09G2310/027G09G3/36
Inventor 朴炫相
Owner SAMSUNG ELECTRONICS CO LTD