Flip-flop and shift register

By alternately connecting power sources to the gate electrode of deteriorating transistors in display devices, the threshold voltage shifts are suppressed, stabilizing transistor performance and reducing power consumption and signal line connections, thus improving display device reliability and efficiency.

JP2024175088AInactive Publication Date: 2024-12-17SEMICON ENERGY LAB CO LTD
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Patent Information

Application Number
JP2024161612
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2024-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

To provide a digital storage device such as a shift register which can suppress deterioration of a semiconductor element such as a transistor.SOLUTION: A digital storage device such as a shift register includes a first transistor that outputs a high-level signal, and a second transistor that outputs a low-level signal. A time for which the second transistor is turned on is shortened by controlling the second transistor to be turned on and off repeatedly. Thereby, deterioration of the second transistor can be suppressed.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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    KR1020030079569A

  • Shift register, liquid crystal display device using the shift register and driving method for liquid crystal device scan-line

    JP2004157508A