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Shift register circuit and display device with the same circuit

A technology of shift register and shift register unit, which is applied in the direction of static indicators and instruments, and can solve the problems of large circuit area, long charging and discharging time, and affecting the operation of dynamic shift registers, etc.

Active Publication Date: 2007-01-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also because each sub-circuit contains a capacitor 18, the circuit needs to occupy a larger area, and the charging and discharging time required by the capacitor 18 is also longer than that of a general transistor, so it will affect the operation of the dynamic shift register at high speed

Method used

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  • Shift register circuit and display device with the same circuit
  • Shift register circuit and display device with the same circuit
  • Shift register circuit and display device with the same circuit

Examples

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Embodiment Construction

[0037] The embodiment of the present invention is exemplified by a shift register applied to a liquid crystal display. Although the shift register disclosed in this embodiment is applied to a scan driver (scan driver) in a liquid crystal display, the present invention is also applicable to other electronic circuits, especially when the electronic circuit must use a low-level circuit area, low power consumption, and fast circuit operation characteristics of the shift register.

[0038] Figure 2A and Figure 2B An embodiment of a shift register consistent with the present invention is shown. Shift register among the present invention is by Figure 2A The first shift register unit in , with Figure 2B The second shift register units are connected in series. Each shift register unit includes a switch unit, an inverting unit, and a signal generating unit, and is controlled according to a first clock signal and a second clock signal that are mutually inverse.

[0039] because...

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Abstract

This invention discloses a shift register, it contains multi-group shift register element in series connection and is controlled by the first clock signal and second clock signal which are in opposite. Each shift register element contains: switch element receives the input signal, outputting the sample signal base on the first clock signal and second clock signal, the inverting element links the switch element, and receives the sample signal, outputs the pilot signal; as well as the signal production element, it links the inverting element, exports the output signal after receiving the pilot signal.

Description

technical field [0001] The present invention relates to a shift register circuit, in particular to a shift register used for a display device. Background technique [0002] Low Temperature Polysilicon (LTPS) liquid crystal display design is the mainstream of consumer product development at present, and it is mainly used in high-quality displays with high integration characteristics. In order to meet the system integration requirements of the display device, it is a current design trend to build the data driving circuit into the display device. In the data drive circuit, because the shift register is the circuit with the highest operating speed for the system, it must have the characteristics of high-speed operation. [0003] The traditional shift register circuit can be divided into two types, one is a static shift register, which is mainly composed of flip-flop (Flip-Flop) elements; the other is a dynamic shift register, which uses the change of the operating voltage of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
Inventor 陈忠君
Owner AU OPTRONICS CORP
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