Liquid crystal display device and driving method for realizing dot inversion by column inversion driving

Abstract

The invention provides a liquid crystal display device adopting array inversion drive to realize dot inversion and a drive method. The sub pixel of a first type line in the display device is coupled with a left adjacent data line, and the sub pixel of a second type line is coupled with a right adjacent data line; through structural adjustment, when the first type line is scanned, a data bus transmits data signals from a first data line; when even number lines are scanned, the data bus can be 'transferred' to transmit the data signals from a second data line, so that the sub pixels with the same sequence in the first type line and the second type line can receive the data signals which have the same sequence and are transmitted from the same data bus, accordingly, the data bus can adopt the compiling sequence and the compiling mode of the same data signals to transmit the data signals of the first type line or the second type line, the compiling difficulty of the data signal supplying mode of the data bus is reduced, and moreover, the structure of an original driver element integrated circuit (IC) does not need to be changed.

Description

technical field [0001] The invention relates to liquid crystal flat panel display technology, in particular to a liquid crystal display device and a driving method thereof which adopt column inversion driving to realize point inversion. Background technique [0002] At present, liquid crystal display has gradually become an important feature of today's consumer electronics products. It is widely used in the display screens of mobile terminals and other equipment with high-resolution color screens. Among them, thin film transistor liquid crystal display (TFT-LCD) is one of the main liquid crystal displays. one. Each liquid crystal pixel of the thin film transistor liquid crystal display is driven by a TFT. [0003] In order to prevent the polarity of the liquid crystal molecules in the liquid crystal pixel from being damaged, the display voltage at one end of the liquid crystal pixel needs to be continuously changed, higher or lower than the common electrode voltage at the o...

AI Technical Summary

Problems solved by technology

[0006] However, for the sub-pixel array arrangement of "Zigzag", the first data line of the even row is not connected to the sub-pixel, and the first data bus connected to the first three data lines only provides the data signals of the two data lines, so When compiling the time and content of the data signal provided by the data bus, it is necessary to separately compile the method of providing the data signal of the first data bus, which increases the difficulty of compiling

In addition, starting from the second data line group, the sub-pixel units of each row are arranged in a manner such as "R, G, B, R, G, B...", then, for odd-numbered and even-numbered rows, the same The RGB of the sub-pixels coupled by the data bus are different, for example, odd-numbered rows are "R, G, B", while even-numbered rows are "G, B, R", so that the data bus supplies data signals for odd-numbered and even-numbered rows Compilation control is different, which also increases the difficulty of compiling the data signal supply method of the data bus, thereby increasing the area and complexity of the driver unit (IC) structure

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