Liquid crystal display screen discharging method, liquid crystal display screen and driving chip thereof
A technology of liquid crystal display and driver chip, applied in static indicators, instruments, etc., can solve the problems of afterimage, display screen flicker, etc.
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[0036] See figure 1 , The first embodiment of the LCD driving method of the present invention includes the following steps:
[0037] S101: When the liquid crystal display is working, the liquid crystal display driving chip generates a working voltage, which is the voltage at which the gate line circuit of the liquid crystal display is turned on.
[0038] When the mobile phone smart terminal or display is turned on, the host provides the voltage source VCI and the voltage source IOVCC for the input / output ports of the LCD driver chip, and the LCD driver chip provides voltage for the LCD display.
[0039] When the liquid crystal display is working, the liquid crystal display driving chip generates a working voltage VGH, which is the voltage at which the gate line circuit Gate of the liquid crystal display is turned on.
[0040] When the liquid crystal display is working, the driving chip of the liquid crystal display also generates a turn-off voltage VGL, which is the voltage at which th...
Example
[0044] See figure 2 , The second embodiment of the liquid crystal display driving method of the present invention includes the following steps:
[0045] S201: When the liquid crystal display is working, the liquid crystal display driving chip generates a working voltage, and the working voltage is the voltage at which the gate line circuit of the liquid crystal display is turned on.
[0046] S202: When the LCD driver chip detects that the operating voltage is lower than the preset voltage value, the output pin of the LCD driver chip is configured as the clock signal of the gate line circuit of the LCD, and the clock signal is used for line by line Scan the gate line circuit of the liquid crystal display; the liquid crystal display drive chip turns on all the TFT switches controlled by the gate line circuit of the liquid crystal display through the control clock signal, so that the liquid crystal display discharges.
[0047] Among them, the output pin PIN of the liquid crystal displa...
Example
[0052] See image 3 , The third embodiment of the LCD driving method of the present invention includes the following steps:
[0053] S301: When the liquid crystal display is working, the liquid crystal display driving chip generates a working voltage, which is the voltage at which the gate line circuit of the liquid crystal display is turned on;
[0054] S302: When the LCD driver chip detects that the operating voltage deviates from the preset voltage value, the LCD driver chip outputs a control signal to turn on the switch of the gate line circuit of the LCD, so that the LCD discharges .
[0055] The third embodiment of the liquid crystal display driving method provided by the present invention has the same principle as the first embodiment, but the difference is that the preset range is increased.
[0056] See Figure 5 , The LCD driver chip 40 of the present invention includes a driver circuit 41, a detection circuit 42 and a storage circuit 43.
[0057] The driving circuit 41 inclu...
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