利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

6380 records (took 0.028 seconds)

    Scan driver for a display device with reduced degradation of transistors
    51.
    发明授权
    Scan driver for a display device with reduced degradation of transistors 有权

    公开(公告)号：US11823626B2

    公开(公告)日：2023-11-21

    申请号：US17699943

    申请日：2022-03-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jong Hee Kim ,  Soo Yeon Lee

    IPC: G09G3/32 ,  G09G3/3266 ,  G09G3/36

    CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G09G2310/08

    Abstract: A scan driver for a display device includes a plurality of scan stage groups, each of the scan stage groups including a first scan stage and a second scan stage. The first scan stage includes: a first transistor including a gate electrode coupled to a first Q node, one electrode coupled to a first scan clock line, and another electrode coupled to a first scan line; a second transistor including a gate electrode and one electrode, which are coupled to a first scan carry line, and another electrode coupled to the first Q node; a third transistor including a gate electrode coupled to a first control line and one electrode coupled to a first sensing carry line; a fourth transistor including a gate electrode coupled to the other electrode of the third transistor, one electrode coupled to a second control line, and another electrode coupled to a first node; a first capacitor including one electrode coupled to the one electrode of the fourth transistor and another electrode coupled to the gate electrode of the fourth transistor; a fifth transistor including a gate electrode coupled to a third control line, one electrode coupled to the first node, and another electrode coupled to the first Q node; and a sixth transistor including a gate electrode coupled to the first Q node, one electrode coupled to the second control line, and another electrode coupled to the first node.

    Shift register circuit, active matrix substrate, and display apparatus
    54.
    发明授权
    Shift register circuit, active matrix substrate, and display apparatus 有权

    公开(公告)号：US11804274B2

    公开(公告)日：2023-10-31

    申请号：US18097173

    申请日：2023-01-13

    Applicant: SHARP KABUSHIKI KAISHA

    Inventor： Yoshihisa Takahashi

    IPC: G09G3/36 ,  G11C19/28 ,  G09G3/20 ,  G09G3/3266

    CPC classification number: G11C19/28 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2320/0223

    Abstract: A circuit includes a first transistor whose gate is connected to a set terminal and whose source or drain is connected to an internal node, a second transistor connected such that one of a source and a drain is electrically connected to the internal node and the other one of the source and the drain is electrically connected to a reference voltage source, a third transistor connected such that a gate is connected to the internal node, one of a source and a drain is connected to a clock terminal, and the other one of the source and the drain is connected to a first output terminal, a bootstrap capacitor which is connected to the internal node and the first output terminal, and a stabilization circuit that suppresses a drop in potential at the internal node in a charging period of the bootstrap capacitor.

    Display driver and display apparatus
    58.
    发明授权
    Display driver and display apparatus 有权

    公开(公告)号：US11798509B2

    公开(公告)日：2023-10-24

    申请号：US17602243

    申请日：2020-04-10

    Applicant: LAPIS Semiconductor Co., Ltd.

    Inventor： Hiroyoshi Ichikura

    IPC: G09G3/36 ,  G09G3/20

    CPC classification number: G09G3/3648 ,  G09G3/20 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2310/08

    Abstract: A display driver drives a display device including a plurality of data lines and a demultiplexer. The demultiplexer includes a plurality of first switches connected to the respective plurality of data lines, and a series of driving voltages including a plurality of driving voltages is supplied via a first wiring. The demultiplexer supplies the plurality of driving voltages to the respective plurality of data lines via the plurality of first switches. The display driver includes: a voltage multiplexing part that generates the series of driving voltages; a second switch connected between the voltage multiplexing part and the first wiring; and a controller connected to the plurality of first switches and the second switch. The controller switches the second switch from an on state to an off state during a first period and sets the two first switches corresponding to the two data lines to the on state such that the two data lines and the first wiring are connected during a second period that is a part of the first period and in which the second switch is in the off state.

Patent Agency Ranking