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公开(公告)号：US10241605B2
公开(公告)日：2019-03-26
申请号：US15434559
申请日：2017-02-16
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima , Takashi Nakamura , Masahiro Tada , Kazuhide Mochizuki
IPC: G06F3/041 , G02F1/1335 , G02F1/1343 , G02F1/1362 , G02F1/1368 , G06F3/044 , G09G3/36 , G02F1/1333
Abstract: According to one embodiment, a liquid crystal display device includes touch-sensor electrodes, an array substrate including pixel electrodes, gate lines, source lines, switching elements, a light-shielding layer, and a plurality of stripe-like common electrodes, a counter-substrate, and a liquid crystal layer, wherein the common electrodes included in the array substrate are used not only as electrodes for display, but also as touch-sensor electrodes and, in a touch operation, a touch drive signal is input to each drive unit electrode including a plurality of common electrodes, and the light-shielding layer is divided into parts each of which corresponds to the drive unit electrode, and is provided to extend across a region opposed to a region of the drive unit electrode.
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公开(公告)号：US20180181243A1
公开(公告)日：2018-06-28
申请号：US15848375
申请日：2017-12-20
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/3648 , G09G3/3666 , G09G3/3677 , G09G2310/0286 , G09G2310/0291 , G11C19/28
Abstract: According to one embodiment, a display device equipped with a touch detection function includes scanning lines, and series-connected unit register circuits, wherein a touch detection operation is performed in a scan stop period, each of the unit register circuits is composed of single-channel transistors, holds and outputs a scanning signal when a voltage leak of a held signal is equal to or lower than a predetermined value, a dummy unit register circuit is provided between a previous unit register circuit which drives a last scanning line before start of the scan stop period and a subsequent unit register circuit which drives a first scanning line after end of the scan stop period, and the dummy unit register circuit continues outputting the scanning signal to the subsequent unit register circuit during the scan stop period.
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公开(公告)号：US10002579B2
公开(公告)日：2018-06-19
申请号：US15155218
申请日：2016-05-16
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima
IPC: G09G3/36
CPC classification number: G09G3/3648 , G09G2300/0426 , G09G2300/0857 , G09G2310/0281 , G09G2330/021
Abstract: According to one embodiment, a first Pixel is connected to a first source line via a first switch included in a first Pixel and the second Pixel is connected to a second source line via a second switch included in the second Pixel. The first Pixel has a first memory, and the second Pixel has a second memory. A first potential line supplies data 1 and a second potential line supplies data 0. The first and second Pixels can store data 1 or 0, when a gate signal is applied to a gate line and the first and second switches are turned on. In this case, in order to store the same data (1 or 0) in the first and second memories, the first and second source lines should be applied different revel signals each other.
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公开(公告)号：US09411478B2
公开(公告)日：2016-08-09
申请号：US14257091
申请日：2014-04-21
Applicant: Japan Display Inc.
Inventor： Miyuki Ishikawa , Masahiro Tada , Takashi Nakamura , Yutaka Umeda , Hirotaka Hayashi , Yoshiro Aoki , Takanori Tsunashima
IPC: G02F1/1333 , G06F3/044 , G06F3/041
CPC classification number: G06F3/044 , G02F1/13338 , G06F3/0412
Abstract: According to one embodiment, a display device includes a display panel having a counter substrate, an array substrate and a liquid crystal layer held therebetween, a counter electrode provided on the counter substrate, a pixel electrode arranged on the array substrate in a matrix, a sensor circuit arranged between rows of the plurality of pixel electrodes and configured to read out intensity of capacitive coupling between the sensor circuit and a dielectric, and a counter electrode drive circuit configured to pulsatively drive a common voltage added to the counter electrode during a period of driving the sensor circuit, wherein the sensor circuit comprises a detection electrode configured to form capacitance between the sensor circuit and the dielectric and to form capacitance between the sensor circuit and the counter electrode, and wherein the counter electrode comprises an aperture including at least a portion opposed to the detection electrode.
Abstract translation: 根据一个实施例，显示装置包括显示面板，其具有对置基板，阵列基板和夹在其间的液晶层，设置在相对基板上的对置电极，以矩阵形式布置在阵列基板上的像素电极， 传感器电路，其布置在所述多个像素电极的行之间并且被配置为读出所述传感器电路和电介质之间的电容耦合的强度;以及对电极驱动电路，被配置为在一段时间期间脉动地驱动添加到所述对电极的公共电压 驱动所述传感器电路，其中所述传感器电路包括被配置为在所述传感器电路和所述电介质之间形成电容并且在所述传感器电路和所述对电极之间形成电容的检测电极，并且其中所述对电极包括孔，所述孔包括至少一部分 与检测电极相对。
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公开(公告)号：US09335856B2
公开(公告)日：2016-05-10
申请号：US14152143
申请日：2014-01-10
Applicant: Japan Display Inc.
Inventor： Keiichi Saito , Hideyuki Takahashi , Takashi Nakamura , Satoru Tomita , Masahiro Tada , Hirotaka Hayashi , Takashi Okada , Yoshiro Aoki , Takanori Tsunashima
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: According to one embodiment, a display device includes a display pixel allocated at a matrix state in a display area, an image-reading device which detects strength of capacitive coupling by a dielectric material coming close to or making contact with the display area, and a control portion which controls each transistor of the image-reading device. The image-reading device includes a detection electrode which forms capacitance between the detection electrode and the dielectric material, a pre-charge gate line, a coupling pulse line, a readout gate line, a pre-charge line and a readout line. These lines supply a signal which drives the image-reading device. The image-reading device further includes a pre-charge transistor, an amplification transistor, a readout transistor, a compensation transistor, and a power-source switching transistor.
Abstract translation: 根据一个实施例，显示装置包括在显示区域中以矩阵状态分配的显示像素，图像读取装置，其通过接近或与显示区域接触的电介质材料来检测电容耦合的强度，以及 控制部分，其控制图像读取装置的每个晶体管。 图像读取装置包括在检测电极和电介质材料之间形成电容的检测电极，预充电栅极线，耦合脉冲线，读出栅极线，预充电线和读出线。 这些线路提供驱动图像读取装置的信号。 图像读取装置还包括预充电晶体管，放大晶体管，读出晶体管，补偿晶体管和电源开关晶体管。
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Patent Agency Ranking
公开(公告)号：US12027534B2
公开(公告)日：2024-07-02
申请号：US17840621
申请日：2022-06-15
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima
CPC classification number: H01L27/1244 , H01L27/0292
Abstract: According to one embodiment, a semiconductor device including, a panel including an inorganic film, and a first pad and a second pad positioned on the inorganic film, and a line substrate including a first connection line electrically connected to the first pad, and a second connection line electrically connected to the second pad, the line substrate positioned on the panel, wherein the inorganic film includes a first cut portion overlapping the first connection line, a second cut portion overlapping the second connection line, and a first extension portion between the first cut portion and the second cut portion, and the first cut portion, the second cut portion, and the first extension portion extend to a first side of the panel.
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公开(公告)号：US11436859B2
公开(公告)日：2022-09-06
申请号：US17233650
申请日：2021-04-19
Applicant: Japan Display Inc.
Inventor： Takashi Nakamura , Makoto Uchida , Takanori Tsunashima , Hirofumi Kato , Akio Takimoto
IPC: G06V40/13
Abstract: A fingerprint detection device includes a substrate, a plurality of photoelectric conversion elements that are provided to the substrate and each output a signal corresponding to light emitted thereto, a plurality of signal lines coupled to the photoelectric conversion elements, a detection circuit that is electrically coupled to the photoelectric conversion elements through the signal lines, and a signal line selection circuit that switches the number of the signal lines to be coupled to the one detection circuit.
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公开(公告)号：US10452183B2
公开(公告)日：2019-10-22
申请号：US15848375
申请日：2017-12-20
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima
Abstract: According to one embodiment, a display device equipped with a touch detection function includes scanning lines, and series-connected unit register circuits, wherein a touch detection operation is performed in a scan stop period, each of the unit register circuits is composed of single-channel transistors, holds and outputs a scanning signal when a voltage leak of a held signal is equal to or lower than a predetermined value, a dummy unit register circuit is provided between a previous unit register circuit which drives a last scanning line before start of the scan stop period and a subsequent unit register circuit which drives a first scanning line after end of the scan stop period, and the dummy unit register circuit continues outputting the scanning signal to the subsequent unit register circuit during the scan stop period.
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公开(公告)号：US20190025659A1
公开(公告)日：2019-01-24
申请号：US16036087
申请日：2018-07-16
Applicant: Japan Display Inc.
Inventor： Makoto UCHIDA , Takanori Tsunashima , Hitoshi Tanaka
IPC: G02F1/1362 , G02F1/1335 , G02F1/1343 , G02F1/1337 , G02F1/1333 , G02F1/1345
Abstract: According to one embodiment, a display device including a first source line, a second source line and a third source line arranged in a first direction, a first gate line crossing the first source line, a second gate line separated from the first gate line in the first direction and crossing the third source line, a first semiconductor layer including a first crossing portion which crosses the first gate line and is located on a first source line side between the first source line and the second source line, and a second semiconductor layer including a second crossing portion which crosses the second gate line and is located on a third source line side between the second source line and the third source line.
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公开(公告)号：US20190019466A1
公开(公告)日：2019-01-17
申请号：US16030043
申请日：2018-07-09
Applicant: Japan Display Inc.
Inventor： Takanori Tsunashima , Yoshiro Aoki , Makoto Uchida
IPC: G09G3/36
Abstract: According to one embodiment, a driving method of a display device including a display area in which liquid crystal pixels are arranged in a matrix, a plurality of scanning lines arranged along display rows, a plurality of signal lines arranged along display columns, a backlight which illuminates the display area, and a controller which controls a display operation, the driving method includes via the controller, driving the scanning lines alternately from a center of the display area to both edges of the display area, outputting video data corresponding to a driven scanning line to the signal lines in synchronization with the driving of the scanning line, and turning on the backlight for a predetermined time after outputting the video data of one frame.
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