Displacement temporary storage device group and method of driving same

A shift register and group technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as time reduction and abnormal display screen, and achieve the effect of speeding up the pull-down speed

Active Publication Date: 2014-08-13
AU OPTRONICS CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, since each scanning line on the screen is generally driven by a corresponding gate driving circuit, as the picture fineness increases and the frame update rate increases, each gate driving circuit is used to drive the corresponding scanning line. The time the output signal is in the enabled state corresponds to a sharp decrease
Assuming that the output signal of the gate drive circuit of the Nth stage is still enabled when the scanning of the corresponding Nth scanning line is completed, then it will only be provided to the N+1th scanning line. The data of the electrically coupled pixels are simultaneously charged into the pixels electrically coupled with the Nth scan line, causing abnormalities in the display screen
That is to say, the output signal of each gate drive circuit must be quickly pulled down to a non-enabled state, otherwise it may cause abnormalities in the display screen

Method used

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  • Displacement temporary storage device group and method of driving same
  • Displacement temporary storage device group and method of driving same
  • Displacement temporary storage device group and method of driving same

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Embodiment Construction

[0064] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0065] Please refer to Figure 1A , which is a circuit block diagram of a flat panel display used in an embodiment of the present invention. In this embodiment, the flat panel display 10 includes a timing controller (Timing-Controller) TCON, a data driver SD, a shift register group 100, a plurality of data lines D(1)-D(x), respectively used for A plurality of scan lines for transmitting output signals G(1) to G(y), and a plurality of pixels P (1,1) ~P (x,y) . Wherein, the timing controller TCON provides the clock signal and the control signal to the data driver SD and the shift register group 100, whereby the shift register group 100 can enable the scan lines in a specific order, so that The scan lines that can be electrically coupled to the pixel P (1,1) ~P (x,y) The display data provide...

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PUM

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Abstract

The invention discloses a displacement temporary storage device group and a method of driving the same. The displacement temporary storage device group comprises a plurality of displacement temporary storage devices that are connected orderly in a cascaded manner, each displacement temporary storage device provides an output signal, a third control signal of at least one first displacement temporary storage device of the displacement temporary storage devices is an output signal provided by the displacement temporary storage device of the last N grades of the first displacement temporary storage device. The downward pull time of the first displacement temporary storage device is decided by the electric level of the driving node of the displacement temporary storage device of the last 2N grades of the first displacement temporary storage device.

Description

technical field [0001] The present invention relates to a shift register group and its driving method, in particular to a shift register group with variable pull-down potential and its driving method. Background technique [0002] Gate Driver on Array (GOA) technology is a technology that directly manufactures a gate driver circuit on an array substrate, which can be used to replace the technology of making a driver chip with an external silicon chip. By using GOA technology, the gate drive circuit can be directly built around the panel, thereby improving the integration level of the panel circuit. Therefore, many manufacturers will use GOA technology to reduce the frame width of the display panel. [0003] However, since each scanning line on the screen is generally driven by a corresponding gate driving circuit, as the picture fineness increases and the frame update rate increases, each gate driving circuit is used to drive the corresponding scanning line. The time the o...

Claims

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Application Information

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IPC IPC(8): G09G3/20G11C19/28
CPCG11C19/287G09G3/20G09G5/003G09G2310/0286G09G2310/06G09G2310/08G11C19/28
Inventor 林炜力董哲维陈嘉亨
Owner AU OPTRONICS CORP
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