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Liquid crystal display device and method of operating the same

A liquid crystal display device and source driver technology, applied in static indicators, instruments, etc., can solve problems such as regular disturbance of the polarity pattern of data signals, and achieve the effects of solving regular disturbance and reducing the number of

Inactive Publication Date: 2011-10-05
RENESAS ELECTRONICS CORP
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Problems solved by technology

Therefore, the second horizontal n-dot inversion driving causes the regular disturbance of the polarity pattern of the data signal

Method used

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  • Liquid crystal display device and method of operating the same
  • Liquid crystal display device and method of operating the same
  • Liquid crystal display device and method of operating the same

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Embodiment Construction

[0039] The invention will now be described herein with reference to illustrated embodiments. Those skilled in the art will appreciate that many alternative embodiments can be accomplished using the teachings of the present invention and that the invention is not limited to the embodiments illustrated for explanatory purposes.

[0040] A liquid crystal display device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] figure 1 The configuration of a liquid crystal display device according to an embodiment of the present invention is shown.

[0042] The liquid crystal display device according to the present embodiment includes: a display panel (liquid crystal panel) 10 which is an LCD (liquid crystal display) module, a controller 1, a gate driver 2, and a plurality of source drivers 3-1, 3- 2, 3-3, ..., 3-N.

[0043] The display panel 10 is divided into a plurality of regions 4-1, 4-2, 4-3...

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Abstract

The present invention relates to a liquid crystal display device and a method of operating the same. A source driver is supplied with a mode switch signal specifying an applied inversion driving method from among horizontal one-dot inversion driving, first horizontal n-dot inversion driving in which a number of outputs does not disturb regularity of a polarity pattern of data signals, and second horizontal n-dot inversion driving in which a number of outputs disturbs regularity of a polarity pattern of data signals. The source driver supplies data signals to data lines. The polarity pattern of the data signals depends on a polarity signal and the applied inversion driving method specified by the mode switch signal. The source driver supplies the polarity signal to a next source driver in the case of the horizontal one-dot inversion driving or the first horizontal n-dot inversion driving, and supplies the polarity signal whose polarity is inverted to the next source driver in the case of the second horizontal n-dot inversion driving.

Description

technical field [0001] The present invention relates to a liquid crystal display device that drives a display panel by an inversion driving method, and a method of driving the liquid crystal display device. Background technique [0002] It is known that when a pixel of a display panel is driven in a DC manner, the lifetime of a liquid crystal layer of the pixel is reduced. This phenomenon is called screen burn-in. A technique widely used to prevent the burn-in phenomenon is "reverse drive (AC drive)". According to a typical inversion driving method, the polarity of a data signal supplied to a pixel is inverted every other row or every m rows (m is an integer equal to or greater than 2). [0003] The dot inversion driving method is also known as an inversion driving method. According to the dot inversion driving, the polarity of the data signal is inverted within a single row. The dot inversion driving method includes horizontal one-dot inversion driving and horizontal n-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G2310/027G09G3/3614G09G2320/0233G09G3/3688
Inventor 植田敏明
Owner RENESAS ELECTRONICS CORP
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