Display device having counter electrodes configured to use as common electrodes and scan electrodes

    公开(公告)号:US09927894B2

    公开(公告)日:2018-03-27

    申请号:US14732933

    申请日:2015-06-08

    CPC classification number: G06F3/0412 G06F3/0416 G06F3/044

    Abstract: A display device comprises counter electrodes configured to be used as common electrodes for displaying and scan electrodes for touch sensing, a first scan circuit which scans gate lines, and a second scan circuit which scans the counter electrodes. In the display device, one frame period includes a write period for continuously scanning one screen and a touch sensing period existing between the write period and a write period in the next frame. The second scan circuit includes a shift register unit and a switch unit. The switch unit includes a seventh thin-film transistor which outputs a DC drive signal to an output node and an eighth thin-film transistor which outputs an AC drive signal to the output node. A second control signal for fixing the voltage of a third retention node to which the gate electrode of the seventh thin-film transistor is connected is inputted in the write period.

    Liquid crystal display device with touch panel
    83.
    发明授权
    Liquid crystal display device with touch panel 有权
    带触摸屏的液晶显示装置

    公开(公告)号:US09459482B2

    公开(公告)日:2016-10-04

    申请号:US14314345

    申请日:2014-06-25

    Abstract: A liquid crystal display device with a touch panel includes: display drive circuits that are disposed respectively at the outsides of the sides opposing to a display region, and that apply sequential scanning signal potentials to scanning signal lines; touch panel drive circuits that are disposed respectively further to the outsides of the display drive circuits, and that apply sequential drive pulses to a plurality of drive electrodes among common electrodes; and switching circuits that are disposed respectively at insides of the display drive circuits, and that switch between applying common electric potentials for controlling the alignment of the liquid crystal composition and applying a touch drive pulse that detects the touching to the display surface.

    Abstract translation: 具有触摸面板的液晶显示装置包括:显示驱动电路,分别设置在与显示区域相对的两侧的外侧,并对扫描信号线施加顺序的扫描信号电位; 触摸面板驱动电路分别设置在显示驱动电路的外部,并且对公共电极中的多个驱动电极施加顺序的驱动脉冲; 以及分别设置在显示驱动电路内部的开关电路,以及在施加用于控制液晶组合物的取向的公共电位之间切换,并施加检测对显示面的触摸的触摸驱动脉冲。

    Display device
    84.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US09448657B2

    公开(公告)日:2016-09-20

    申请号:US14485917

    申请日:2014-09-15

    CPC classification number: G06F3/0412 G06F3/044

    Abstract: A drive circuit of an in cell type touch panel includes a thin film transistor that controls whether to pass a signal to drive a counter electrode when a finger touches and a thin film transistor that controls whether to pass a counter electrode voltage in display. The drive circuit raises a gate voltage applied to the thin film transistor when the drive signal is passed more than a gate voltage applied to the thin film transistor when the counter electrode voltage is passed.

    Abstract translation: 单元式触摸面板的驱动电路包括薄膜晶体管,其控制当手指触摸时是否通过驱动对电极的信号,以及薄膜晶体管,其控制是否通过显示对置电极电压。 当对置电极电压通过时,当驱动信号通过超过施加到薄膜晶体管的栅极电压时,驱动电路提高施加到薄膜晶体管的栅极电压。

    Liquid crystal display device preventing destruction by electro static charge
    85.
    发明授权
    Liquid crystal display device preventing destruction by electro static charge 有权
    防止电静电破坏的液晶显示装置

    公开(公告)号:US09442336B2

    公开(公告)日:2016-09-13

    申请号:US14478199

    申请日:2014-09-05

    CPC classification number: G02F1/136204 G02F1/133351 G02F1/13458

    Abstract: This invention envisages having flexible wiring substrate terminals serving to connect with the wires for preventing dielectric breakdown caused by static electricity during the manufacturing process, and reducing the number of the flexible wiring substrate terminals. On a mother TFT substrate, signal lines extend over each liquid crystal cell in a manner flanking a scribe line between the adjacent liquid crystal cells. The signal lines of each liquid crystal cell are connected with connecting lines striding the scribe line. This reduces the number of static electricity countermeasure wires extending from the flexible wiring substrate terminals of each liquid crystal cell. Once completed, the individual liquid crystal cells are separated from one another, with no adverse effects caused by the connecting lines.

    Abstract translation: 本发明设想具有用于连接导线的柔性布线基板端子,用于防止在制造过程中由静电引起的电介质击穿,并且减少柔性布线基板端子的数量。 在母TFT基板上,信号线以相邻的液晶单元之间的划线侧面的方式在每个液晶单元上延伸。 每个液晶单元的信号线与跨越划线的连接线连接。 这就减少了从每个液晶单元的柔性布线基板端子延伸的静电对抗线的数量。 一旦完成,各个液晶单元彼此分离,没有由连接线引起的不利影响。

    Display device
    86.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US09336735B2

    公开(公告)日:2016-05-10

    申请号:US14094962

    申请日:2013-12-03

    Abstract: The plurality of stages of circuit blocks of a driver circuit in a display device include a first transistor and a second transistor. The first transistor is connected at its gate with a first node and controls conductivity between a scanning signal line and a first clock signal line applied with a first clock signal. The first node is at an active potential when at least any one signal of signals output from one stage in each of a forward direction and a reverse direction is at the active potential. The second transistor is connected at its gate with the first node and controls conductivity between the first clock signal line and an input signal line of another stage of circuit block.

    Abstract translation: 显示装置中的驱动电路的多个级的电路块包括第一晶体管和第二晶体管。 第一晶体管在其栅极处与第一节点连接,并且控制扫描信号线和施加有第一时钟信号的第一时钟信号线之间的电导率。 当在正向和反向中的每一个中从一个级输出的信号的至少一个信号处于活动电位时,第一节点处于有效电位。 第二晶体管在其栅极处与第一节点连接,并控制第一时钟信号线与另一级电路块的输入信号线之间的电导率。

    Display device
    87.
    发明授权

    公开(公告)号:US09299308B2

    公开(公告)日:2016-03-29

    申请号:US14615410

    申请日:2015-02-05

    Abstract: A display device includes a first-stage output circuit adapted to perform output to a first-stage output signal line as an endmost output signal line out of a plurality of output signal lines disposed in parallel to each other, and the first-stage output circuit includes a start signal line to which a start signal for applying a conducting potential sequentially to the plurality of output signal lines is applied, a first clock signal line to which a first clock signal is applied, a second clock signal line to which a second clock signal is applied, a first transistor having a source to which the first-stage output signal line is connected, and a drain to which the first clock signal line is connected, and a second transistor having a gate to which the start signal line is connected.

    Display device
    88.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US09214115B2

    公开(公告)日:2015-12-15

    申请号:US14526807

    申请日:2014-10-29

    Abstract: A display device includes a substrate having an image display area, pixel electrodes formed in the image display area of the substrate, a common electrode formed in the image display area of the substrate, inside signal lines formed inside the image display area of the substrate and electrically connected to the pixel electrodes, outside signal lines formed outside the image display area of the substrate and electrically connected to the inside signal lines, and a common line formed inside and outside the image display area of the substrate and electrically connected to the common electrode. A coupling capacitance is formed between the inside signal lines and the common electrode. The outside signal lines include a first portion, and a second portion that is higher in electric resistance than an electric resistance of the first portion, and the second portion has a bend.

    Abstract translation: 显示装置包括具有图像显示区域的基板,形成在基板的图像显示区域中的像素电极,形成在基板的图像显示区域中的公共电极,形成在基板的图像显示区域内的信号线内部;以及 电连接到像素电极,形成在基板的图像显示区域外部并电连接到内部信号线的外部信号线,以及形成在基板的图像显示区域的内部和外部的公共线,并且电连接到公共电极 。 在内部信号线和公共电极之间形成耦合电容。 外部信号线包括第一部分和电阻高于第一部分的电阻的第二部分,并且第二部分具有弯曲部。

    Liquid crystal display device with a built-in touch panel
    89.
    发明授权
    Liquid crystal display device with a built-in touch panel 有权
    液晶显示装置,内置触摸屏

    公开(公告)号:US09146412B2

    公开(公告)日:2015-09-29

    申请号:US13851184

    申请日:2013-03-27

    Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

    Abstract translation: 根据由阻挡检测电极和公共电极之间形成的电场的材料的存在或不存在而引起的电容的差异来检测触摸的存在或不存在。 公共电极包括沿横向方向延伸并且在纵向方向上彼此对准的多个分开的电极部分。 多个公共线中的每一个电连接到至少一个分割电极部分。 多个公共线被布置在公共电极的横向方向上的与公共电极的横向相邻的区域中,在与其长度正交的宽度方向上彼此相邻布置的宽度方向彼此不同,并且宽度 的公共线宽度越长,长度越长。

    Optical sensor-equipped liquid crystal display device

    公开(公告)号:US12228813B2

    公开(公告)日:2025-02-18

    申请号:US18507638

    申请日:2023-11-13

    Abstract: According to one embodiment, an optical sensor-equipped liquid crystal display device includes a display panel and a driver IC. The display panel includes a display area including pixels, a surrounding area surrounding the display area, peripheral circuits provided in the surrounding area, and an optical sensor outputting a detection signal in response to incident light. The peripheral circuit includes a shift register, and a gate switch group connected to the shift register and including a first gate switch and a second gate switch. The first gate switch is connected to a switching element for driving the pixel via a scanning line. The second gate switch is connected to a switching element included in a sensor circuit for driving the optical sensor via a scanning line for sensor.

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