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Driver circuit, display apparatus, and method of driving the same

A driving method and technology of a display device, which are applied to static indicators, instruments, etc., can solve the problems of increasing the influence of parasitic capacitance and parasitic capacitance, and display color fluctuations, and achieve the effect of suppressing display color fluctuations.

Inactive Publication Date: 2007-10-17
RENESAS ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the data line becomes longer, the parasitic capacitance becomes larger and the influence of the parasitic capacitance becomes larger, resulting in more severe display color fluctuation

Method used

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  • Driver circuit, display apparatus, and method of driving the same
  • Driver circuit, display apparatus, and method of driving the same
  • Driver circuit, display apparatus, and method of driving the same

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no. 1 example

[0022] FIG. 1 shows a display device according to a first embodiment of the present invention. As shown in Figure 1, according to this embodiment, the liquid crystal display device 1 based on the RGB time-division driving method includes: an active matrix liquid crystal display panel 30; a gate driver 33 for driving scanning lines; A driver IC 20 of a data driver (source driver) 21; a controller 10 for supplying display data and various timing signals; and a power supply circuit (not shown). The gate driver may be located outside the display panel, or a driver IC including a data driver may be located on the panel.

[0023] The liquid crystal display panel 30 includes: a TFT array substrate, wherein a plurality of scanning lines (gate lines) 32 and a plurality of data lines 31 are arranged in a grid pattern, pixel electrodes 34 are arranged in a matrix pattern, and TFTs (not shown) as switching elements ) are connected to the source (data) line 31 and the pixel electrode; the...

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Abstract

A display apparatus drives a data line on a time division basis. In this process, the data line is driven twice, namely in two modes: a precharge mode and a drive mode. Before the drive mode in which a drive voltage according to display data is supplied to a data line among a set of data lines to be driven on a time division basis, a precharge voltage is supplied at least to a data line adjacent to the data line individually.

Description

technical field [0001] The present invention relates to: a driving circuit for driving data lines in a display device based on a time-division method, a display device with a time-division driving circuit and a driving method thereof. Background technique [0002] In the field of active matrix liquid crystal display devices, a precharging technique capable of accelerating liquid crystal driving is known. In this precharging technique, before the data lines are driven based on the display data, the data lines are precharged to a given voltage by providing a driving voltage based on the display data, so as to reduce the charging / discharging of the data lines ( See, for example, Unexamined Published Japanese Applications JP2005-37832A and JP2005-115342A). [0003] On the other hand, the electric field effect mobility of polysilicon is about tens to 200 cm 2 / Vs, which is higher than the field-effect mobility of amorphous silicon (approximately 0.5 to 1 cm 2 / Vs). For this r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3688G09G2300/0408G09G2310/0248G09G2310/0297G09G2320/0209
Inventor 宫崎喜芳大谷圭吾永户秀和
Owner RENESAS ELECTRONICS CORP