Driving method of display panel and liquid crystal display device
A liquid crystal display device and display panel technology, which is applied to static indicators, instruments, etc., can solve the problems of high power consumption in the dot inversion driving mode, and achieve the effects of improving image quality, increasing display frequency, and saving electric energy
Active Publication Date: 2019-02-22
KUSN INFOVISION OPTOELECTRONICS
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Problems solved by technology
That is, in one frame time, for a dot inversion TFT display panel composed of n rows of pixels, the data signal of each column data line must be switched n times between positive and negative polarities, and the frequency is n / 2t 1frame , t 1frame The time for one frame causes the problem of large power consumption in the existing dot inversion driving method
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[0025]In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation methods, methods, Steps, structure, features and effects are described in detail below.
[0026] Although the present invention uses the terms first, second, third, etc. to describe various elements, signals, ports, components or sections, these elements, signals, ports, components or sections are not limited by these terms. These terms are only used to distinguish one element, signal, port, component or section from another element, signal, port, component or section. In the present invention, an element, port, component or part is "connected" or "connected" to another element, port, component or part, which can be understood as a direct electrical connection, or can also be understood as an indirect electrical connection with an intermediate element. sexual connection. Unless otherwise defined, all terms (including ...
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The invention provides a driving method of a display panel. The method includes the following steps that: in the driving mode of dot inversion, time for completing one-time dot inversion is adopted as an inversion period, and each inversion period is divided into first inversion time and second inversion time; in the first inversion time, a gate driving circuit sequentially generates n-stage gate driving signals so as to drive thin film transistors (TFT) in the n-th rows in the display panel to be turned on sequentially, wherein n is an odd number, and at the same time, the gate driving circuit transmits data signals having a first polarity or data signals having a second polarity to data lines at the n-th columns; and in the second inversion time, the gate driving circuit sequentially generates m-stage gate driving signals to drive thin film transistors (TFT) at the m-th rows in the display panel to be turned on sequentially, wherein m is an even number, and at the same time, the gate driving circuit transmits data signals having a second polarity or data signals having a first polarity to data lines at the m-th columns. The invention also provides a liquid crystal display device using the driving method of the display panel, and therefore, the driving power consumption of the display panel in a dot inversion driving mode can be decreased.
Description
technical field [0001] The invention relates to the field of liquid crystal display, in particular to a driving method of a display panel and a liquid crystal display device adopting the driving method. Background technique [0002] Liquid Crystal Display (LCD) has many advantages such as lightness, lightness, energy saving, and no radiation, so it has gradually replaced the traditional cathode ray tube (CRT) display. Currently, liquid crystal displays are widely used in high-definition digital televisions, desktop computers, personal digital assistants (PDAs), notebook computers, mobile phones, digital cameras and other electronic devices. [0003] Taking a thin film transistor (Thin Film Transistor, TFT) liquid crystal display device as an example, it includes: a liquid crystal display panel and a driving circuit, wherein the liquid crystal display panel includes a plurality of scanning lines and a plurality of data lines, and two adjacent scanning lines A pixel unit is f...
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IPC IPC(8): G09G3/36
CPCG09G3/3648G09G3/3677
Inventor 于子阳房耸乔艳冰蒋隽
Owner KUSN INFOVISION OPTOELECTRONICS