TFT-LCD (thin film transistor-liquid crystal display) panel and driving method thereof

Abstract

The invention discloses a TFT-LCD (thin film transistor-liquid crystal display) panel and a driving method thereof and relates to the field of liquid crystal displays. Panel power consumption cannot be increased while requirements of pixel charge rate can be met at high refresh frequency. The TFT-LCD panel comprises a plurality of sub-pixel units crosswise defined by several rows of grid lines and several columns of data lines, each row of grid lines is connected with a GOA (gate driver on array) unit used for providing grid driving signals, a first data line and a second data line which are used for providing data to the sub-pixel units in each column are arranged on two sides of each column of the sub-pixel units respectively, each two adjacent sub-pixel units in each column are respectively connected with the first data line and the second data line, each two GOA units provide the same grid driving signals, and one of the two GOA units providing the same grid driving signals is connected with the grid lines in odd rows while the other of the two GOA units is connected with the grid lines in even rows.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) panel and a driving method thereof. Background technique [0002] With the development of the TFT-LCD industry, the competition of TFT-LCD products is becoming increasingly fierce, and all manufacturers are adopting new technologies to reduce the cost of products, thereby improving the competitiveness of their products in the market. Gate Driver on Array (GOA for short) technology is a typical representative of these new technologies. [0003] GOA technology is to integrate the gate driver unit on the array substrate to form the GOA unit, so that the gate driver IC (Gate Driver IC) part can be saved, and the product cost can be reduced in terms of material cost and process steps. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in t...

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Problems solved by technology

[0008] From the formula, we can see that the power consumption of the GOA part is proportional to the frequency f of the clock pulse signal when the high level and low level of the clock pulse signal are determined. For example, the panel refresh frequency is driven by 60Hz When changing to 120Hz drive, the power consumption of the GOA part will double. For panels with specific requirements for logic power consumption, such changes sometimes even lead to product design failures

[0009] Since GOA technology adopts TFT technology, compared with the complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor (CMOS) technology used in the traditional Chip On Film (COF) method, in addition to the logic power consumption of the panel, there will be In addition to a certain increase, the delay of the GOA signal is greater than that of the COF method, so when the refresh rate of the panel is increased, the charging rate of the pixel cannot be met.

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