Time schedule controller for liquid crystal display panel and time schedule control method thereof

Abstract

The invention discloses a time schedule controller for a liquid crystal display panel and a time schedule control method thereof. The time schedule controller comprises a time schedule control unit, a selection unit, a comparison unit and a signal time control unit, wherein the time schedule control unit is used for analyzing an input signal generating system state voltage signal and a reference state voltage signal; the time schedule control unit can simultaneously output a reference trigger signal and a switching trigger signal of a differential frame rate to the selection unit; the comparison unit can determine whether the frequencies of the two state signals are identical or not, so that the selection unit can determine to transmit the reference trigger signal or the switching triggersignal to a leveling mobile circuit; and the signal time control unit controls the output time of the reference trigger signal and controls the output time of the switching trigger signal so as to make the charging time of liquid crystal units connected with each gate electrode circuit equal.

Description

technical field [0001] The present invention relates to a timing controller of a liquid crystal panel and its timing control method, in particular to a liquid crystal that automatically detects the frequency of a system signal to switch and output a trigger signal corresponding to the frame rate, and simultaneously controls the output time of the trigger signal The timing controller of the panel and its timing method. Background technique [0002] see Figure 1A A schematic diagram of the circuit structure of the liquid crystal panel of the prior art is shown. Currently, Gate In Panel (GIP) technology is widely used in the manufacturing technology of liquid crystal panels. Because the displacement temporary storage circuit 13 of the gate drive circuit is directly Applied to the panel ( Figure 1A In the range of the imaginary frame), there is no need to use an additional gate circuit (Gate Driver IC), so the production cost of the liquid crystal panel can be reduced. Howeve...

AI Technical Summary

Problems solved by technology

In this way, when the frame rate is switched, the charging time of the liquid crystal unit will be inconsistent, so that the display brightness of the liquid crystal panel will be different, and then the screen will flicker momentarily.

[0006] However, LCD panels with GIP structure do not have OE (Out Enable) signal control lines

Therefore, the liquid crystal panel cannot use the OE signal control line to adjust the opening time of the semiconductor channel layer of the TFT component of the liquid crystal unit (Liquid Crystal Unit) charging timing connected to the gate line 14 of the shift temporary storage circuit 13, thereby controlling the liquid crystal Unit charging time

Images