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Driving method and driving device for thin film transistor liquid crystal display

A liquid crystal display and thin film transistor technology, which is applied in the field of liquid crystal displays, can solve problems such as complex driving, and achieve the effects of reducing complexity, reducing production costs, and simple and easy driving methods.

Inactive Publication Date: 2015-02-11
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method is to change the voltage of the pixel electrode, and the data register is required to store the data information of different frames in the driving, and then output to the liquid crystal display, and the driving is more complicated

Method used

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  • Driving method and driving device for thin film transistor liquid crystal display
  • Driving method and driving device for thin film transistor liquid crystal display
  • Driving method and driving device for thin film transistor liquid crystal display

Examples

Experimental program
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Embodiment 1

[0031] This embodiment provides a driving method for a thin film transistor liquid crystal display, such as figure 1 As shown, the method includes:

[0032] Step 101 , reducing the voltage difference between the common electrode voltage and the data voltage by changing the input voltage of the common electrode within a period of time.

[0033] When the liquid crystal display displays normally, a common electrode voltage needs to be input to the common electrode. In the prior art, a common electrode voltage with a fixed amplitude is usually input to the common electrode. In this embodiment, in order to display a brighter or darker image than the original image, the voltage difference between the common electrode voltage and the data voltage is reduced by changing the input voltage of the common electrode within a period of time, that is, the voltage applied between the liquid crystal molecules The voltage is reduced, and the displayed image is brighter or darker than the orig...

Embodiment 2

[0046] This embodiment provides a driving method for a thin film transistor liquid crystal display, such as figure 1 As shown, the method includes:

[0047] Step 101 , reducing the voltage difference between the common electrode voltage and the data voltage by changing the input voltage of the common electrode within a period of time.

[0048] When the liquid crystal display displays normally, a common electrode voltage needs to be input to the common electrode. In the prior art, a common electrode voltage with a fixed amplitude is usually input to the common electrode. In this embodiment, in order to display a brighter or darker image than the original image, the voltage difference between the common electrode voltage and the data voltage is reduced by changing the input voltage of the common electrode within a period of time, that is, the voltage applied between the liquid crystal molecules The voltage is reduced, and the displayed image is brighter or darker than the orig...

Embodiment 3

[0055] This embodiment provides a driving device for a thin film transistor liquid crystal display, such as figure 2 As shown, the device includes:

[0056] A plurality of common electrodes 1 and a common electrode connection line 2, a plurality of common electrodes 1 are connected through the common electrode connection line 2, and also include: a control module 3, the control module 3 is connected with the common electrode connection line 2, and is used for controlling the input common The voltage of electrode 1, the control module 3 reduces the voltage difference between the common electrode voltage and the data voltage by changing the input voltage of the common electrode within a certain period of time, and correspondingly changes the input voltage of the common electrode during another adjacent period of time. The voltage difference between the common electrode voltage and the data voltage is increased.

[0057] In this embodiment, the common electrode voltage is an AC...

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Abstract

The embodiment of the invention discloses a driving method and driving device for a thin film transistor liquid crystal display, which relates to the field of liquid crystal displays and aims at realizing the display of an image which is brighter or darker than the original image by changing the voltage of a common electrode and further greatly reducing the complexity in driving. The driving method for the thin film transistor liquid crystal display, disclosed by the embodiment of the invention, comprises the following steps of: reducing the voltage difference between the common electrode and a pixel electrode by changing the input voltage of the common electrode within a period of time, and correspondingly increasing the voltage difference between the voltage of the common electrode and data voltage by changing the input voltage of the common electrode within an adjacent period of time.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a driving method and a driving device of a thin film transistor liquid crystal display. Background technique [0002] At present, the imaging mode of ordinary Thin Film Transistor Liquid Crystal Display (TFT-LCD) generally adopts voltage holding mode (Holding-type). When switching frames, motion blur often occurs. [0003] In order to solve the above technical problems, the prior art provides a method of inserting a black picture between two normally displayed pictures to reduce the dynamic smear, that is, without changing the design of the pixels in the display panel, inserting a black picture method, divides the time of a frame into two segments, where the first segment displays raw image data, while the second segment displays black image data. This method not only causes the displayed picture to be dark, reduces the display quality of the liquid crystal display, but a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133
Inventor 祁小敬
Owner BOE TECH GRP CO LTD