公开(公告)号：US20150170600A1

公开(公告)日：2015-06-18

申请号：US14411940

申请日：2013-07-01

Applicant: Sharp Kabushiki Kaisha

Inventor： Akihito Jinda ,  Mitsuhiro Murata ,  Kohhei Tanaka ,  Yosuke Iwata

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G02F1/134363 ,  G02F2001/134381 ,  G09G3/3659 ,  G09G2300/0426 ,  G09G2300/0434

Abstract: Provided is a liquid crystal display apparatus employing a drive method whereby nonuniform electric field is not generated in pixels. This liquid crystal display apparatus is provided with a first substrate, a first electrode, a second electrode, a second substrate, a common electrode, a counter electrode, a liquid crystal layer, and a drive unit. The drive unit executes drive operations including: operations of setting the potential of the first electrode at a low level, the potential of the second electrode at a high level, and the potential of the counter electrode at the high level; operations of setting the potential at the high level, the potential at the low level, and the potential at the high level; operations of setting the potential at the low level, the potential at the high level, and the potential at the low level; and operations of setting the potential at the high level, the potential at the low level, and the potential at the low level.

Abstract translation: 本发明提供一种液晶显示装置，其采用以像素不产生不均匀电场的驱动方法。 该液晶显示装置设置有第一基板，第一电极，第二电极，第二基板，公共电极，对电极，液晶层和驱动单元。 驱动单元执行驱动操作，包括：将第一电极的电位设定为低电平，将第二电极的电位设定为高电平，将对置电极的电位设置在高电平的动作; 将潜力置于高位，潜力处于低水平，潜力处于高位的作战; 将潜力置于低水平，潜力处于高位，潜力处于低水平的作战; 将潜力置于高位，潜力处于低水平，潜力处于低位的作战。

公开(公告)号：US20150049290A1

公开(公告)日：2015-02-19

申请号：US14390460

申请日：2013-03-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Seiichi Uchida ,  Seiji Kaneko ,  Yasuyuki Ogawa ,  Yutaka Takamaru ,  Kohhei Tanaka ,  Mitsuhiro Murata ,  Akira Shibazaki ,  Ken Kuboki

IPC: G02F1/1362

CPC classification number: G02F1/136286 ,  G02F1/134309

Abstract: The TFT substrate (10) of this liquid crystal display device (100) includes: a TFT (11) which is provided for each pixel; an upper electrode (12) which is electrically connected to the TFT's drain electrode (11d); a lower electrode (13) which is arranged under the upper electrode; and a dielectric layer (14) which is arranged between the upper and lower electrodes. Its counter substrate (20) includes a counter electrode (21) which faces the upper electrode. The upper electrode has first and second regions (R1, R2) which have mutually different electrode structures, and a third region (R3) which electrically connects the first and second regions to the drain electrode. The third region of the upper electrode includes a symmetrical connecting portion (12c) that is a conductive film pattern, of which the shape is substantially symmetrical with respect to a virtual line (L1) that splits each pixel into two adjacent regions in a row direction.

Abstract translation: 该液晶显示装置（100）的TFT基板（10）具备：为每个像素设置的TFT（11） 与TFT的漏电极（11d）电连接的上电极（12）; 布置在所述上​​电极下方的下电极（13）; 以及布置在上电极和下电极之间的电介质层（14）。 其对置基板（20）包括面向上电极的对电极（21）。 上电极具有彼此不同的电极结构的第一和第二区域（R1，R2），以及将第一和第二区域电连接到漏电极的第三区域（R3）。 上电极的第三区域包括对称连接部分（12c），其是导电膜图案，其形状相对于将每个像素分成行方向的两个相邻区域的虚拟线（L1）基本对称 。

公开(公告)号：US20150049128A1

公开(公告)日：2015-02-19

申请号：US14388259

申请日：2013-03-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Yosuke Iwata ,  Mitsuhiro Murata

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G02F1/134309 ,  G02F2001/133742 ,  G02F2001/134381 ,  G02F2001/13712 ,  G09G2300/043 ,  G09G2320/0242 ,  G09G2320/028 ,  G09G2320/068

Abstract: The present invention provides a method for driving a liquid crystal and a liquid crystal display device, wherein a high contrast ratio is achieved even at oblique viewing angles while achieving sufficiently high transmittance during white display. The present invention relates to a method for driving a liquid crystal by generating a potential difference between at least two electrode pairs arranged on upper and lower substrates, the liquid crystal being interposed between the upper and lower substrates and having negative anisotropy of dielectric constant, and the method for driving a liquid crystal including, in the stated order, executing a first driving operation to generate a potential difference between electrodes of a first electrode pair, and executing a second driving operation to generate a potential difference between electrodes of a second electrode pair, the first electrode pair being a pair of electrodes consisting of a first electrode and a second electrode arranged separately on the upper and lower substrates, and the second electrode pair being a pair of electrodes consisting of the second electrode and a third electrode arranged on one of the upper and lower substrates.

Abstract translation: 本发明提供了一种驱动液晶的方法和液晶显示装置，其中即使在倾斜的视角也能实现高对比度，同时在白显示期间实现足够高的透射率。 本发明涉及一种通过在布置在上基板和下基板上的至少两个电极对之间产生电位差来驱动液晶的方法，液晶插入在上基板和下基板之间并具有负的各向异性介电常数，以及 驱动液晶的方法，包括按照所述顺序执行第一驱动操作以产生第一电极对的电极之间的电位差，并且执行第二驱动操作以产生第二电极对的电极之间的电位差 ，所述第一电极对是由分别设置在所述上​​基板和下基板上的第一电极和第二电极组成的一对电极，所述第二电极对是由所述第二电极和布置在所述第二电极上的第三电极组成的一对电极 的上下基板。

公开(公告)号：US10353132B2

公开(公告)日：2019-07-16

申请号：US15539348

申请日：2015-12-18

Applicant: Sharp Kabushiki Kaisha

Inventor： Shinya Kadowaki ,  Takeshi Ishida ,  Mitsuhiro Murata ,  Ryuzo Yuki ,  Hisashi Watanabe ,  Takeshi Masuda

IPC: F21V8/00 ,  G09F9/00 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1345 ,  G02F1/1368

Abstract: A liquid crystal display device includes a liquid crystal panel, a liquid crystal panel flexible circuit board, and a backlight unit. The backlight unit includes LEDs, a light guide plate, a chassis, and an LED board. The light guide plate has an outer shape conforming to an outer shape of the liquid crystal panel. The chassis including a sidewall portion which surrounds the light guide plate and the LEDs. The LED board has an outer shape conforming to the outer shape of the light guide plate. The LEDs are mounted on the LED board at intervals in the circumferential direction. The LED board includes LED mount portions, and LED interval portions. The LED interval portions include a cut-out LED interval portion. Between the cut-out LED interval portion and the sidewall portion, a liquid crystal panel flexible circuit board passing space is provided.

公开(公告)号：US10281766B2

公开(公告)日：2019-05-07

申请号：US15539322

申请日：2015-12-18

Applicant: Sharp Kabushiki Kaisha

Inventor： Shinya Kadowaki ,  Ryuzo Yuki ,  Mitsuhiro Murata ,  Takeshi Ishida ,  Takeshi Masuda ,  Hisashi Watanabe

IPC: G02F1/1335 ,  F21V8/00 ,  F21V23/00 ,  F21V23/04 ,  H05K1/02 ,  G04G9/00 ,  G04G17/04 ,  H05K1/18 ,  F21Y103/33

Abstract: A backlight device 12 includes at least: a plurality of LEDs 17 arranged in an annular and curved shape; a light guide plate 14 surrounded by the plurality of LEDs 17 having am outer shape along the arrangement of the plurality of LEDs 17, and guiding light from the plurality of LEDs 17; and an LED board (light source board) 18 on which the plurality of LEDs 17 are mounted and wiring portions 18c for feeding power to the plurality of LEDs 17 are formed. The LED board 18 extends along the arrangement of the plurality of LEDs 17, and has a terminated annular shape or an endless annular shape, and includes a no-wiring formed region NWA in a part with respect to the circumferential direction thereof, where the wiring portions 18c are not formed.

公开(公告)号：US10203442B2

公开(公告)日：2019-02-12

申请号：US15770739

申请日：2016-10-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hisashi Watanabe ,  Hirotoshi Yasunaga ,  Ryuzo Yuki ,  Mitsuhiro Murata

IPC: F21S2/00 ,  F21K9/20 ,  F21V8/00

Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface. A gap in a range from 0.1 mm to 0.2 mm is provided between light emitting surfaces of the LEDs and the light entering end surface. The edge of each light emitting surface is at a position ΔD1 mm inner than an edge of the light entering end surface with respect to a thickness direction of the light guide plate. An edge of each light emitting surface is at a position ΔD2 mm inner than an edge of the light entering end surface. ΔD1 and ΔD2 satisfy relational expressions: ΔD2≥ΔD1 and ΔD2≥0.1.

公开(公告)号：US10061156B2

公开(公告)日：2018-08-28

申请号：US15510243

申请日：2015-08-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Mitsuhiro Murata ,  Takeshi Ishida ,  Ryuzo Yuki ,  Hirotoshi Yasunaga

IPC: G02F1/1335 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/133553 ,  G02F1/133514 ,  G02F1/13454 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/40 ,  G02F2201/52

Abstract: Provided is a technique for controlling the hue of an image when the image is displayed on a display panel so that the image should not be displayed with a hue different from the actual hue. The display device includes a display panel that includes an active matrix substrate 11a and a counter substrate 11b, and a reflection unit 12. The active matrix substrate 11a includes gate lines and source lines 24, and includes a plurality of pixel areas that are defined by the gate lines and the source lines 24. The counter substrate 11b includes color filters 31R, 31G, 31B of R, G, B at positions corresponding to the pixel areas. The reflection unit 12 transmits light from the light source 14, and reflects light from the active matrix substrate 11a. The pixel areas of R, G, B have reflection areas that reflect light from the reflection unit 12 so that the respective amounts of light outgoing from the above-described pixel areas are approximately uniform.

公开(公告)号：US09778411B2

公开(公告)日：2017-10-03

申请号：US15306800

申请日：2015-05-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Takeshi Ishida ,  Mitsuhiro Murata ,  Hirotoshi Yasunaga

IPC: G02F1/1339 ,  F21V8/00 ,  B60K35/00 ,  B60K37/02 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02B6/0088 ,  B60K35/00 ,  B60K37/02 ,  B60K2350/106 ,  B60K2350/203 ,  B60K2350/2095 ,  G02B6/005 ,  G02F1/133615 ,  G02F1/1339 ,  G02F2001/133322 ,  G02F2201/46 ,  G02F2201/54

Abstract: A backlight device 12 includes LEDs 17, an optical member 16 that applies optical effects to light from the LEDs 17 and has a through hole 23 that is through a thickness thereof, and a restricting member 26 having a communication hole 27 that is communicated with the through hole 23. The restricting member 26 is inserted in the through hole 23 to be in contact with an inner surface of the through hole 23 to restrict movement of the optical member 16 along a plate surface of the optical member 16.

公开(公告)号：US09552785B2

公开(公告)日：2017-01-24

申请号：US14652344

申请日：2013-12-13

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohhei Tanaka ,  Mitsuhiro Murata ,  Akihito Jinda ,  Yosuke Iwata

IPC: G09G3/36 ,  G02F1/1345 ,  G02F1/1343

CPC classification number: G09G3/3614 ,  G02F1/134363 ,  G02F1/13454 ,  G02F2001/134381 ,  G09G2300/0495

Abstract: Provided is a liquid crystal display device in which both a vertical electric field and a horizontal electric field are used and flickering is hardly recognized. The liquid crystal display device includes a liquid crystal panel and a control unit. The control unit includes a horizontal electric field control unit and a vertical electric field control unit. The horizontal electric field control unit controls the potentials of pairs of drive electrodes included in the liquid crystal panel, and thereby controls a horizontal electric field that is generated between each pair of drive electrodes. The vertical electric field control unit controls the potentials of a common electrode and an opposite electrode included in the liquid crystal panel, and thereby controls a vertical electric field that is generated between the common electrode and the opposite electrode. The horizontal electric field control unit controls the intensity and the polarity of the horizontal electric field when the vertical electric field control unit is causing the vertical electric field to be generated. The vertical electric field control unit inverts the polarity of the vertical electric field when the horizontal electric field control unit is maintaining the polarity of the horizontal electric field.

Abstract translation: 提供一种其中使用垂直电场和水平电场两者并且几乎不识别闪烁的液晶显示装置。 液晶显示装置包括液晶面板和控制单元。 控制单元包括水平电场控制单元和垂直电场控制单元。 水平电场控制单元控制液晶面板中包括的驱动电极对的电位，从而控制在每对驱动电极之间产生的水平电场。 垂直电场控制单元控制液晶面板中包含的公共电极和对置电极的电位，从而控制在公共电极和对置电极之间产生的垂直电场。 当垂直电场控制单元产生垂直电场时，水平电场控制单元控制水平电场的强度和极性。 当水平电场控制单元保持水平电场的极性时，垂直电场控制单元反转垂直电场的极性。

公开(公告)号：US09341904B2

公开(公告)日：2016-05-17

申请号：US14390460

申请日：2013-03-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Seiichi Uchida ,  Seiji Kaneko ,  Yasuyuki Ogawa ,  Yutaka Takamaru ,  Kohhei Tanaka ,  Mitsuhiro Murata ,  Akira Shibazaki ,  Ken Kuboki

IPC: G02F1/1362 ,  G02F1/1343

CPC classification number: G02F1/136286 ,  G02F1/134309

Abstract: The TFT substrate (10) of this liquid crystal display device (100) includes: a TFT (11) which is provided for each pixel; an upper electrode (12) which is electrically connected to the TFT's drain electrode (11d); a lower electrode (13) which is arranged under the upper electrode; and a dielectric layer (14) which is arranged between the upper and lower electrodes. Its counter substrate (20) includes a counter electrode (21) which faces the upper electrode. The upper electrode has first and second regions (R1, R2) which have mutually different electrode structures, and a third region (R3) which electrically connects the first and second regions to the drain electrode. The third region of the upper electrode includes a symmetrical connecting portion (12c) that is a conductive film pattern, of which the shape is substantially symmetrical with respect to a virtual line (L1) that splits each pixel into two adjacent regions in a row direction.

Abstract translation: 该液晶显示装置（100）的TFT基板（10）具备：为每个像素设置的TFT（11） 与TFT的漏电极（11d）电连接的上电极（12）; 布置在所述上​​电极下方的下电极（13）; 以及布置在上电极和下电极之间的电介质层（14）。 其对置基板（20）包括面向上电极的对电极（21）。 上电极具有彼此不同的电极结构的第一和第二区域（R1，R2），以及将第一和第二区域电连接到漏电极的第三区域（R3）。 上电极的第三区域包括对称连接部分（12c），其是导电膜图案，其形状相对于将每个像素分成行方向的两个相邻区域的虚拟线（L1）基本对称 。