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公开(公告)号:US11086430B2
公开(公告)日:2021-08-10
申请号:US16697837
申请日:2019-11-27
Applicant: Japan Display Inc.
Inventor: Ryutaro Nitobe , Yoshihiro Kotani
IPC: G06F3/041 , G09G3/36 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1362 , G09G3/20
Abstract: A display device is provided and includes pixels and common electrodes overlapping the pixels; gate lines connected to pixels in row; source lines connected to pixels in column; source amplifiers; and a gate drive circuit configured to supply at least one first pulse to the gate lines.
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公开(公告)号:US20150355766A1
公开(公告)日:2015-12-10
申请号:US14732237
申请日:2015-06-05
Applicant: Japan Display Inc.
Inventor: Yoshihiro Kotani , Hiroshi Mizuhashi , Hayato Kurasawa , Kohei Azumi
IPC: G06F3/041
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G09G3/3614 , G09G3/3648 , G09G3/3688 , G09G2310/0291 , G09G2310/08 , G09G2354/00
Abstract: A display device comprises gate lines extending in a first direction, drain lines extending in a second direction, common electrodes extending in the second direction, and a drive circuit. The common electrodes are configured to be partitioned over drain lines of pixels of a specific color and to be used also as touch panel scan electrodes. The drive circuit is configured so that write periods for driving the gate lines and touch sensing periods for driving the scan electrodes are alternately repeated in each frame period, signal polarity of drain lines for colors other than the specific color is inverted every frame, signal polarity of drain lines for the specific color is inverted at a cycle shorter than one frame, and the cycle of the signal polarity inversion of the drain lines for the specific color can be changed.
Abstract translation: 显示装置包括沿第一方向延伸的栅极线,沿第二方向延伸的漏极线,沿第二方向延伸的公共电极和驱动电路。 公共电极被配置为在特定颜色的像素的排泄线上划分并且也用作触摸面板扫描电极。 驱动电路被配置为使得用于驱动栅极线的写入周期和用于驱动扫描电极的触摸感测周期在每个帧周期中交替重复,除了特定颜色以外的颜色的漏极线的信号极性每帧反转,信号极性 用于特定颜色的漏极线以比一帧短的周期反转,并且可以改变用于特定颜色的漏极线的信号极性反转的周期。
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公开(公告)号:US20130278579A1
公开(公告)日:2013-10-24
申请号:US13921755
申请日:2013-06-19
Inventor: Kenichi Akiyama , Yoshihiro Kotani , Hiroko Sehata , Kouichi Kotera
IPC: G09G3/20
CPC classification number: G09G3/20 , G02F1/13306 , G09G3/36
Abstract: A drive circuit of a display device includes decoder circuit which outputs a voltage based on a 8-bit digital value. The decoder circuit includes a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit.
Abstract translation: 显示装置的驱动电路包括基于8位数字值输出电压的解码器电路。 解码器电路包括分别使用8位数字值的高位6位输出一个电压的第一解码器电路和第二解码器电路; 接收从第一解码器电路和第二解码器电路输出的电压并将两个电压分配给三个端子的选择电路; 以及中间电压输出电路,其基于三个电压输出作为五种值中的一种的中间电压。 第一解码器电路和第二解码器电路分别包括选择开关型解码器电路和比赛型解码器电路。
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公开(公告)号:US12067179B2
公开(公告)日:2024-08-20
申请号:US17396859
申请日:2021-08-09
Applicant: Japan Display Inc.
Inventor: Ryutaro Nitobe , Yoshihiro Kotani
IPC: G06F3/041 , G02F1/1333 , G02F1/1343 , G02F1/1362 , G06F3/044 , G09G3/20 , G09G3/36
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/134336 , G02F1/136286 , G06F3/04166 , G06F3/0418 , G06F3/044 , G09G3/2092 , G09G3/3648 , G09G3/3677 , G02F1/134345 , G02F1/134372 , G02F2201/121 , G06F2203/04108 , G09G3/3614 , G09G3/3696 , G09G2310/0291 , G09G2310/08
Abstract: A display device is provided and includes common electrodes overlapping pixels; common driver configured to supply voltage during a display period and an AC drive signal for touch detection during touch detection period; source lines connected to columns of pixels; source driver configured to supply an image signal; gate lines connected to rows of the pixels; select transistors connected between source driver and source lines; and controller configured to supply DC control signal to gate terminals of select transistors during display period, supply an AC control signal to gate terminals of select transistors during touch detection period, wherein AC control signal is synchronous with AC drive signal.
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公开(公告)号:US11749011B2
公开(公告)日:2023-09-05
申请号:US17670659
申请日:2022-02-14
Applicant: Japan Display Inc.
Inventor: Sabu Takada , Yoshihiro Kotani
CPC classification number: G06V40/1306 , G06V40/1365
Abstract: A detecting device includes a substrate, a plurality of detection electrodes provided on the substrate and arrayed in a first direction parallel to the substrate, a plurality of drive electrodes provided on the substrate and arrayed in a second direction intersecting the first direction, a second selection circuit configured to select a plurality of the detection electrodes based on selection signals, a first selection circuit configured to select a plurality of the drive electrodes, a detector coupled to the selected detection electrodes out of the detection electrodes, and a memory storing therein, as a set of output data, a plurality of detection signals output from the selected detection electrodes via the detector by the first selection circuit scanning the drive electrodes in one period when the second selection circuit selects the detection electrodes.
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公开(公告)号:US09916798B2
公开(公告)日:2018-03-13
申请号:US15086852
申请日:2016-03-31
Applicant: Japan Display Inc.
Inventor: Takeshi Shibata , Yoshihiro Kotani , Hiroshi Mizuhashi , Hayato Kurasawa
CPC classification number: G09G3/3614 , G02F1/13 , G09G3/3648 , G09G3/3688 , G09G2300/0426 , G09G2300/0434 , G09G2310/0248 , G09G2310/0297 , G09G2310/08 , G09G2354/00
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a first drive module. A first source line is located between a first divisional electrode and a second divisional electrode. One frame period includes a first display period, a second display period, a sense period, and a first pre-charge period. The first drive module supplies a first image signal having a first polarity to the first source line in the first display period, supplies a first pre-charge signal having a second polarity to the first source line in the first pre-charge period, and supplies the first image signal having the first polarity to the first source line in the second display period.
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公开(公告)号:US20160307526A1
公开(公告)日:2016-10-20
申请号:US15086852
申请日:2016-03-31
Applicant: Japan Display Inc.
Inventor: Takeshi SHIBATA , Yoshihiro Kotani , Hiroshi Mizuhashi , Hayato Kurasawa
IPC: G09G3/36
CPC classification number: G09G3/3614 , G02F1/13 , G09G3/3648 , G09G3/3688 , G09G2300/0426 , G09G2300/0434 , G09G2310/0248 , G09G2310/0297 , G09G2310/08 , G09G2354/00
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a first drive module. A first source line is located between a first divisional electrode and a second divisional electrode. One frame period includes a first display period, a second display period, a sense period, and a first pre-charge period. The first drive module supplies a first image signal having a first polarity to the first source line in the first display period, supplies a first pre-charge signal having a second polarity to the first source line in the first pre-charge period, and supplies the first image signal having the first polarity to the first source line in the second display period.
Abstract translation: 根据一个实施例,液晶显示装置包括第一基板,第二基板,液晶层和第一驱动模块。 第一源极线位于第一分割电极和第二分割电极之间。 一帧周期包括第一显示周期,第二显示周期,感测周期和第一预充电周期。 第一驱动模块在第一显示周期内向第一源极线提供具有第一极性的第一图像信号,在第一预充电期间向第一源极线提供具有第二极性的第一预充电信号, 所述第一图像信号在所述第二显示周期中具有与所述第一源极线的第一极性。
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公开(公告)号:US20200097115A1
公开(公告)日:2020-03-26
申请号:US16697837
申请日:2019-11-27
Applicant: Japan Display Inc.
Inventor: Ryutaro Nitobe , Yoshihiro Kotani
IPC: G06F3/041 , G09G3/36 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1362 , G09G3/20
Abstract: A display device is provided and includes pixels and common electrodes overlapping the pixels; gate lines connected to pixels in row; source lines connected to pixels in column; source amplifiers; and a gate drive circuit configured to supply at least one first pulse to the gate lines.
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公开(公告)号:US10551950B2
公开(公告)日:2020-02-04
申请号:US15658815
申请日:2017-07-25
Applicant: Japan Display Inc.
Inventor: Ryutaro Nitobe , Yoshihiro Kotani
IPC: G06F3/041 , G02F1/1362 , G02F1/1333 , G02F1/1343 , G09G3/36 , G06F3/044
Abstract: According to one embodiment, a display device comprises a common electrode driver configured to supply to common electrodes a display voltage during a display period and a touch detection drive signal during a touch detection period, a source amplifier configured to supply an image signal to source lines, a gate driver configured to supply to gate lines a scanning signal during a display period and a guard signal during a touch detection period, and switches configured to connect the source lines and the common electrodes during a touch detection period.
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公开(公告)号:US09875674B2
公开(公告)日:2018-01-23
申请号:US14474563
申请日:2014-09-02
Applicant: Japan Display Inc.
Inventor: Chunhan Zhang , Yoshihiro Kotani
IPC: H01L23/498 , G09G3/00 , H01L27/12 , G02F1/1345 , H01L21/66 , H01L23/00
CPC classification number: G09G3/006 , G02F1/13454 , G02F1/13458 , G02F2203/69 , H01L22/34 , H01L24/13 , H01L24/14 , H01L24/16 , H01L24/27 , H01L24/29 , H01L24/32 , H01L24/81 , H01L24/83 , H01L24/92 , H01L2224/13013 , H01L2224/14153 , H01L2224/14155 , H01L2224/16227 , H01L2224/27334 , H01L2224/2929 , H01L2224/293 , H01L2224/32225 , H01L2224/81191 , H01L2224/81903 , H01L2224/83192 , H01L2224/83203 , H01L2224/83851 , H01L2224/9212 , H01L2924/15788 , H01L2924/3511 , H01L2924/00 , H01L2224/81 , H01L2224/83 , H01L2924/00014 , H01L2924/07811
Abstract: A display device includes, on a TFT substrate, a driver IC having a first bump and a second bump, a first terminal and a second terminal connecting respectively to the first bump and the second bump, and wiring interconnecting the first terminal and the second terminal. The driver IC also includes a resistance detection circuit that detects resistance between the first bump and the second bump.
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