公开(公告)号：US20180108309A1

公开(公告)日：2018-04-19

申请号：US15318043

申请日：2015-06-09

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohhei TANAKA ,  Takeshi NOMA ,  Takayuki NISHIYAMA ,  Ryo YONEBAYASHI ,  Yasuyuki OGAWA ,  Kaoru YAMAMOTO

IPC: G09G3/36 ,  G11C19/28

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28

Abstract: Each driving circuit in a shift register includes an output unit, a precharge unit, a boosting unit, a gate voltage discharge unit, a gate line discharge unit, and an internal line netA. The output unit includes a TFT(F) that outputs a selection voltage to a gate line. The precharge unit includes a TFT(B) that outputs a control voltage for causing the TFT in the output unit to operate. The boosting unit boosts up a gate voltage of the TFT in the output unit through a capacitor (Cbst). The gate voltage discharge unit includes a TFT(K) that pulls down this gate voltage during a non-selection period while the gate line is not selected. The gate line discharge unit includes a TFT(L) that outputs a non-selection voltage to the gate line during the non-selection period while the gate line is not selected. The internal line is connected to a gate terminal of the TFT in the output unit, the precharge unit, the gate voltage discharge unit, and the boosting unit. A gate terminal of at least one of the TFTs in the precharge unit, the gate voltage discharge unit, and the gate line discharge unit is connected to an internal line in another driving circuit.

公开(公告)号：US20170038650A1

公开(公告)日：2017-02-09

申请号：US15305394

申请日：2015-04-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Youhei NAKANISHI ,  Takayuki NISHIYAMA ,  Kohhei TANAKA ,  Takeshi NOMA ,  Ryo YONEBAYASHI

IPC: G02F1/1362 ,  H01L27/02 ,  H01L27/12 ,  G09G3/36 ,  G02F1/1368

CPC classification number: G02F1/136204 ,  G02F1/1343 ,  G02F1/1368 ,  G09F9/30 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2310/08 ,  G09G2330/04 ,  G09G2330/08 ,  H01L21/822 ,  H01L27/0255 ,  H01L27/0266 ,  H01L27/04 ,  H01L27/1244 ,  H01L29/786

Abstract: Provided is an active matrix substrate that can protected from static electricity, with the frame region being narrowed. An active matrix substrate (20a) includes a plurality of first lines (GL), a plurality of second lines (SL), and a protection part (50). The first lines are formed in a display region (30). The second lines are formed in the display region, and intersect with the first lines. The protection part protects the active matrix substrate from static electricity. The protection part includes a plurality of first protection circuits (50A), and a conductive unit (50B). The first protection circuits are connected to each of the first lines in the display region. The conductive unit is connected to each of the first protection circuits in the display region. Each of the first protection circuits, according to a potential of the first line to which the first protection circuit is connected, allows the first line and the conductive unit to be conductive with each other.

Abstract translation: 提供了一种有源矩阵基板，其可以防止静电，框架区域变窄。 有源矩阵基板（20a）包括多条第一线（GL），多条第二线（SL）和保护部分（50）。 第一线形成在显示区域（30）中。 第二行形成在显示区域中，与第一行相交。 保护部件保护有源矩阵基板免受静电。 保护部分包括多个第一保护电路（50A）和导电单元（50B）。 第一保护电路连接到显示区域中的每条第一行。 导电单元连接到显示区域中的每个第一保护电路。 根据与第一保护电路连接的第一线路的电位，第一保护电路中的每一个允许第一线路和导电单元彼此导电。

公开(公告)号：US20230034225A1

公开(公告)日：2023-02-02

申请号：US17791588

申请日：2020-01-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohhei TANAKA

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: The present application discloses a display device capable of performing favorable display in which flicker is not visually recognized while the power consumption of a scanning-side drive circuit, as well as a data-side drive circuit, can be reduced sufficiently when pause driving is performed. A pixel circuit including emission control transistors M5, M6 in addition to a drive transistor M1 includes a switching element that is turned on based on a voltage of an emission control line Ei to initialize an organic EL element OL when the voltage of the emission control line Ei is at a level for turning off the emission control transistors M5, M6. For example, in some embodiments, the anode electrode of the organic EL element OL is connected to an initialization voltage line Vini via an N-channel transistor M7 serving as the switching element, and the emission control line Ei is connected to the gate terminal of the transistor M7. In the pixel circuit, the transistors M1, M5, M6, and the like except for the transistor M7 are all P-channel transistors.

公开(公告)号：US20210026211A1

公开(公告)日：2021-01-28

申请号：US16935239

申请日：2020-07-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Keisuke YOSHIDA ,  Kohhei TANAKA

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1335

Abstract: A liquid crystal display device includes an active matrix substrate, a counter substrate, and a liquid crystal layer. The active matrix substrate includes a top gate type oxide semiconductor TFT a plurality of gate wiring lines a plurality of source and an interlayer insulating layer The counter substrate includes a plurality of columnar spacers provided on a second substrate. Each columnar spacer is disposed in an intersecting region where the gate wiring line and the source wiring line intersect. A front face of the active matrix substrate on the liquid crystal layer side includes a plurality of first ridges overlapping the plurality of gate wiring lines and a plurality of second ridges overlapping the plurality of source wiring lines.

公开(公告)号：US20200064669A1

公开(公告)日：2020-02-27

申请号：US16495459

申请日：2018-03-28

Applicant: Sharp Kabushiki Kaisha

Inventor： Takayuki NISHIYAMA ,  Ryo YONEBAYASHI ,  Kohhei TANAKA

IPC: G02F1/1368 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1345 ,  G09G3/36

Abstract: Provided is a technique for decreasing the deterioration of the display quality, while reducing electric power consumption. An active matrix substrate includes a plurality of gate lines Gn, Gn+1, a plurality of source lines S, a plurality of pixels PIX that are provided with pixel electrodes 11, respectively, and pixel switching elements 12 each of which is connected with the pixel electrode 11, the gate line, and the source line. The pixel electrode 11 has a connection portion 11b to which the pixel switching element 12 is connected. The connection portion 11b extends to an adjacent one of the pixels that is adjacent to the pixel where the pixel electrode 11 is provided, in a gate line extending direction. A data signal supplied by a source line has a polarity that is opposite to a polarity of a data signal supplied by an source line adjacent to the source line, and that is inverted every vertical period.

公开(公告)号：US20170123253A1

公开(公告)日：2017-05-04

申请号：US15306825

申请日：2015-04-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yasuhiro SUGITA ,  Kohhei TANAKA ,  Takeshi NOMA ,  Takayuki NISHIYAMA ,  Ryo YONEBAYASHI ,  Kenshi TADA ,  Shinji YAMAGISHI ,  Jean MUGIRANEZA

IPC: G02F1/1333 ,  G02F1/1368 ,  G06F3/041 ,  G02F1/1339 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1343

CPC classification number: G02F1/13338 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04108

Abstract: Provided is a sensor-equipped display device (1) that includes: a first substrate (20a); a second substrate (20b) opposed to the first substrate (20a); a liquid crystal layer (LC); a plurality of first lines (15) extending in a first direction in a pixel area (AA); second lines extending in a second direction that is different from the first direction; pixel switching elements that are provided for pixels, respectively, and are connected to the first lines and the second lines; a plurality of sensor electrodes (SE, DL) provided at positions that overlap the pixel area on at least one of the first substrate and the second substrate, for detecting the contact or approach of the object; and a plurality of sensor lead-out lines that are provided in parallel to the first lines or the second lines in the pixel area on the first substrate, and are connected to the sensor electrodes, respectively.

公开(公告)号：US20170047038A1

公开(公告)日：2017-02-16

申请号：US15307040

申请日：2015-04-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Takeshi NOMA ,  Kohhei TANAKA ,  Takayuki NISHIYAMA ,  Ryo YONEBAYASHI

IPC: G09G3/36 ,  G02F1/1335 ,  G02F1/1368 ,  G02F1/1362

CPC classification number: G09G3/3696 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/136 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13606 ,  G02F2001/136218 ,  G02F2201/123 ,  G09F9/30 ,  G09F9/35 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/0281 ,  G09G2310/0291 ,  G09G2310/08

Abstract: To reduce the parasitic capacitance of a driving circuit and definitely switches a gate line to a selection state, an active matrix substrate is provided. The active matrix substrate includes a driving circuit that switches a gate line (13G) to a selection state in a pixel region defined by a source line (15S) and the gate line (13G). The driving circuit includes: a plurality of switching elements including an output switching element (TFT-F) that supplies a selection voltage to the gate line; and an internal line (netA) to which a gate terminal of the output switching element (TFT-F) and at least a first switching element of the switching elements other than the output switching element are connected. The active matrix substrate includes a reduction part (C1 and C2) that reduce the parasitic capacitance of the driving circuit in the pixel region in which at least one of the internal line and the first switching element is located.

Abstract translation: 为了减小驱动电路的寄生电容，确切地将栅极线切换到选择状态，提供有源矩阵基板。 有源矩阵基板包括驱动电路，其将栅极线（13G）切换到由源极线（15S）和栅极线（13G）限定的像素区域中的选择状态。 驱动电路包括：多个开关元件，包括向栅极线提供选择电压的输出开关元件（TFT-F）; 以及连接输出开关元件（TFT-F）的栅极端子和除了输出开关元件之外的开关元件的至少第一开关元件的内部线路（netA）。 有源矩阵基板包括减少部分（C1和C2），其减少驱动电路在内部线路和第一开关元件中的至少一个所在的像素区域中的寄生电容。

公开(公告)号：US20170047033A1

公开(公告)日：2017-02-16

申请号：US15305798

申请日：2015-04-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Kohhei TANAKA ,  Takayuki NISHIYAMA ,  Takeshi NOMA ,  Ryo YONEBAYASHI

IPC: G09G3/36 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1362

CPC classification number: G09G3/3677 ,  G02F1/133514 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/045

Abstract: A technique of, in the case of changing, at predetermined time intervals, a drive circuit for switching a gate line to a selected state, preventing a stopped drive circuit from malfunctioning is provided. Each of a plurality of drive circuits provided for each gate line in an active-matrix substrate includes: a selection circuit unit including an output switching element that is turned on to apply a voltage to the gate line in response to a control signal; an internal line connected to a gate terminal of the output switching element and the gate line; and a potential control circuit unit connected to the internal line for controlling a potential of the internal line in response to the control signal. At predetermined time intervals, a signal supply unit: supplies, to at least one of the plurality of drive circuits, a potential control signal so that the potential of the internal line is controlled to be lower than a threshold voltage of the output switching element by the potential control circuit unit; and supplies, to each of the other drive circuits, a drive signal so that a selection voltage is applied to the gate line by the selection circuit unit.

Abstract translation: 在以预定的时间间隔改变用于将栅极线切换到选择状态的驱动电路的情况下，防止停止的驱动电路发生故障的技术。 为有源矩阵基板中的每个栅极线设置的多个驱动电路中的每一个包括：选择电路单元，其包括导通以响应于控制信号向栅极线施加电压的输出开关元件; 连接到输出开关元件的栅极端子和栅极线的内部线路; 以及电位控制电路单元，连接到内部线路，用于响应于控制信号控制内部线路的电位。 在预定时间间隔，信号提供单元向多个驱动电路中的至少一个提供电位控制信号，使得内部线路的电位被控制为低于输出开关元件的阈值电压，由 电位控制电路单元; 并且向每个其他驱动电路提供驱动信号，使得通过选择电路单元将选择电压施加到栅极线。

公开(公告)号：US20170045988A1

公开(公告)日：2017-02-16

申请号：US15119059

申请日：2015-02-19

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yasuhiro SUGITA ,  Kenshi TADA ,  Hiroyuki OGAWA ,  Shinji YAMAGISHI ,  Jean MUGIRANEZA ,  Koichi MIYACHI ,  Hidefumi YOSHIDA ,  Mitsuhiro MURATA ,  Kohhei TANAKA

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  G06F2203/04107 ,  G06F2203/04112

Abstract: A touch panel includes: a first substrate; a second substrate disposed on a viewer side of the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; a plurality of pixel electrodes and a common electrode for applying a voltage to the liquid crystal layer; and a plurality of detection electrodes and a plurality of driving electrodes for a touch sensor. The first substrate includes: a first transparent substrate; and the plurality of pixel electrodes, which are formed on the liquid crystal layer side of the first transparent substrate. The second substrate includes: a second transparent substrate; and the plurality of driving electrodes and the plurality of detection electrodes formed on the liquid crystal layer side of the second transparent substrate. The touch panel does not include a conductive layer on the viewer side of the second transparent substrate.

Abstract translation: 触摸面板包括：第一基板; 设置在所述第一基板的观察者侧的第二基板; 设置在所述第一基板和所述第二基板之间的液晶层; 多个像素电极和用于向液晶层施加电压的公共电极; 以及用于触摸传感器的多个检测电极和多个驱动电极。 第一基板包括：第一透明基板; 以及形成在第一透明基板的液晶层侧的多个像素电极。 第二基板包括：第二透明基板; 以及形成在第二透明基板的液晶层侧的多个驱动电极和多个检测电极。 触摸面板不包括在第二透明基板的观察者侧的导电层。

公开(公告)号：US20200285090A1

公开(公告)日：2020-09-10

申请号：US16810979

申请日：2020-03-06

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohhei TANAKA

IPC: G02F1/1368 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  H01L27/32 ,  H01L51/52

Abstract: A display device includes: an active matrix substrate including pixels arrayed in a matrix shape including rows and columns, and scanning wiring lines extending in a row direction and signal wiring lines extending in a column direction, wherein the active matrix substrate includes, in each of pixels, a TFT, a pixel electrode formed of a transparent conductive material and electrically connected to the TFT, a color filter located between the TFT and the pixel electrode, and a connecting electrode formed of a transparent conductive material and electrically connecting the TFT to the pixel electrode, the color filter includes a first color filter layer provided on the TFT and including a first contact hole, and a second color filter layer provided on the first color filter layer and including a second contact hole, and the first contact hole and the second contact hole do not overlap with each other.