公开(公告)号：US20110267561A1

公开(公告)日：2011-11-03

申请号：US13143269

申请日：2010-01-22

申请人： Tadashi Nemoto ,  Naru Usukura ,  Hiromi Katoh ,  Hiroaki Shigeta ,  Ryuzo Yuki ,  Yuuichi Kanbayashi

发明人： Tadashi Nemoto ,  Naru Usukura ,  Hiromi Katoh ,  Hiroaki Shigeta ,  Ryuzo Yuki ,  Yuuichi Kanbayashi

IPC分类号： G02F1/1335

CPC分类号： G02F1/13338 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2413/02

摘要： A liquid crystal display device (display device) (100) of the present invention includes a display panel (20) provided with a plurality of light sensor elements, and has an area sensor function in which the plurality of light sensor elements detect an image on a surface of the liquid crystal display device, so as to determine a location of an input from outside. The liquid crystal display device includes (i) a front side polarizing plate (40) provided on or above a surface of the display panel (20) which surface is on an image display surface side and (ii) a λ/2 phase plate (50b) and a λ/4 phase plate (50a) which are stacked in this order on the front side polarizing plate (40) so that an optical axis (a slow axis) of the λ/2 phase plate (50b) and an optical axis (a slow axis) of the λ/4 phase plate (50a) intersect with each other. The phase plate formed by stacking the λ/2 phase plate (50b) and the λ/4 phase plate (50a) is referred to as a broadband λ/4 phase plate (50). This makes a light sensor equipped display device which (i) prevents a reflection of light coming from a display image and (ii) allows determination of an input location with higher accuracy.

摘要翻译： 本发明的液晶显示装置（显示装置）（100）具备：多个光传感器元件的显示面板（20），具有多个光传感器元件检测图像的区域传感器功能 液晶显示装置的表面，以便从外部确定输入的位置。 液晶显示装置包括：（i）设置在显示面板（20）的表面上或上方的前侧偏振片（40），其表面位于图像显示面侧，（ii）λ/ 2相位板 50b）和λ/ 4相位板（50a），它们依次叠置在前侧偏光板（40）上，使得λ/ 2相位板（50b）的光轴（慢轴）和光学 λ/ 4相位板（50a）的轴（慢轴）相交。 将λ/ 2相位板（50b）和λ/ 4相位板（50a）叠层而形成的相位板称为宽带λ/ 4相位板（50）。 这使得配备有光传感器的显示装置（i）防止来自显示图像的光的反射，以及（ii）允许以更高精度确定输入位置。

公开(公告)号：US20120062817A1

公开(公告)日：2012-03-15

申请号：US13322137

申请日：2010-02-22

申请人： Yuuichi Kanbayashi ,  Tadashi Nemoto ,  Ryuzo Yuki ,  Hiroaki Shigeta ,  Naru Usukura ,  Hiromi Katoh

发明人： Yuuichi Kanbayashi ,  Tadashi Nemoto ,  Ryuzo Yuki ,  Hiroaki Shigeta ,  Naru Usukura ,  Hiromi Katoh

IPC分类号： G02F1/13357

CPC分类号： G06F3/0412 ,  G02F1/13338 ,  G02F2001/13312 ,  G06F3/042 ,  G06F2203/04103

摘要： A liquid crystal display device 100 according to the present invention is provided with a liquid crystal panel 20 in which a liquid crystal layer 23 is disposed between an active matrix substrate 21 and an opposite substrate 22 and a backlight 10 that irradiates the liquid crystal panel 20 with light. The liquid crystal panel 20 has a plurality of optical sensor elements 30 that detect the intensity of received infrared light, and the backlight 10 has an infrared LED (light source) 12 that emits infrared light. On a device surface 100a, an infrared light transmissive sheet (infrared light partially transmissive portion) 50 that partially transmits infrared light is provided. The optical sensor elements 30 detect an input position from outside by detecting infrared light reflected from an inputting object such as a finger or the like placed on the device surface 100a. This way, an optical sensor integrated liquid crystal display device that can clearly distinguish whether or not an inputting object such as a finger or the like is touching the device surface can be achieved.

摘要翻译： 根据本发明的液晶显示装置100具备液晶面板20，液晶面板20中，在有源矩阵基板21和相对基板22之间配置有液晶层23和照射液晶面板20的背光源10 用光。 液晶面板20具有检测接收到的红外光的强度的多个光学传感器元件30，背光源10具有发射红外光的红外LED（光源）12。 在器件表面100a上，设置有部分透射红外光的红外透光片（红外光部分透射部）50。 光传感器元件30通过检测从放置在装置表面100a上的诸如手指等的输入对象反射的红外光来检测来自外部的输入位置。 这样，可以实现能够清楚地识别手指等的输入对象是否正在接触设备表面的光学传感器集成液晶显示装置。

公开(公告)号：US20120169962A1

公开(公告)日：2012-07-05

申请号：US13395388

申请日：2010-08-19

申请人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh ,  Tadashi Nemoto ,  Hiroaki Shigeta ,  Yuichi Kanbayashi

发明人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh ,  Tadashi Nemoto ,  Hiroaki Shigeta ,  Yuichi Kanbayashi

IPC分类号： G02F1/13357 ,  H01J9/26 ,  G02F1/1335

CPC分类号： G01J1/02 ,  G01J1/0204 ,  G01J1/0488 ,  G01J1/46 ,  G01J3/506 ,  G06F3/0412 ,  G06F3/042

摘要： In a liquid crystal display device, noise light to a photodetecting element is reduced, whereby an improved S/N ratio is achieved. The liquid crystal display device includes: a first substrate (100) on which a pixel circuit is provided; a second substrate (101) arranged so as to face the first substrate (100) with a liquid crystal layer (30) being interposed therebetween; a photodetecting element (17) provided on the first substrate (100); and a detection light filter (18) that is provided between the photodetecting element (17) and the liquid crystal layer (30) and that cuts off light in a band outside a signal light band that is a band of light to be detected by the photodetecting element (17).

摘要翻译： 在液晶显示装置中，对光检测元件的噪声光减少，从而实现了提高的S / N比。 液晶显示装置包括：设置有像素电路的第一基板（100） 第二基板（101），其间配置有与第一基板（100）相对的液晶层（30）; 设置在第一基板（100）上的光电检测元件（17）; 以及检测用滤光器（18），其设置在所述受光元件（17）和所述液晶层（30）之间，并且在所述光检测元件（17）和所述液晶层 光检测元件（17）。

公开(公告)号：US20150277169A1

公开(公告)日：2015-10-01

申请号：US14425664

申请日：2012-09-05

申请人： Naru Usukura ,  Yuuichi Kanbayashi ,  Hiromi Katoh ,  Norbert Leister

发明人： Naru Usukura ,  Yuuichi Kanbayashi ,  Hiromi Katoh ,  Norbert Leister

IPC分类号： G02F1/139 ,  G02F1/29 ,  G03H1/22 ,  G02F1/1337

CPC分类号： G02F1/1393 ,  G02F1/1337 ,  G02F1/133788 ,  G02F1/13471 ,  G02F1/141 ,  G02F1/292 ,  G02F2001/133738 ,  G02F2203/24 ,  G02F2203/28 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2225/22 ,  G03H2225/32 ,  G03H2225/36 ,  G03H2225/60 ,  G03H2240/42

摘要： An active liquid crystal diffraction element includes: a first transparent substrate; a second transparent substrate; a liquid crystal layer; a first electrode; a second electrode; a control member; and an alignment member, wherein the second electrode includes a plurality of small electrodes; the control member controls a magnitude of an electric voltage applied to each of the plurality of small electrodes; the alignment member confers a liquid crystal molecular alignment without any pre-tilt to the liquid crystal layer; and the liquid crystal molecular alignment is parallel to the surface of the first transparent substrate.

摘要翻译： 活性液晶衍射元件包括：第一透明基板; 第二透明基板; 液晶层; 第一电极; 第二电极; 控制构件; 和对准构件，其中所述第二电极包括多个小电极; 控制构件控制施加到多个小电极中的每一个的电压的大小; 对准构件赋予液晶分子取向，而不向液晶层预倾斜; 并且液晶分子取向平行于第一透明基板的表面。

公开(公告)号：US20130329174A1

公开(公告)日：2013-12-12

申请号：US13981328

申请日：2012-01-24

申请人： Yuuichi Kanbayashi ,  Hiromi Katoh ,  Naru Usukura

发明人： Yuuichi Kanbayashi ,  Hiromi Katoh ,  Naru Usukura

IPC分类号： G02F1/1343 ,  G02F1/139

CPC分类号： G02F1/134309 ,  G02F1/134363 ,  G02F1/139 ,  G02F1/292 ,  G02F2001/134381

摘要： An optical deflecting element (100A) according to the present invention is an optical deflecting element including a first substrate (11) on which a first electrode (10) is formed, a second substrate (21) on which a second electrode (20) is formed, and a liquid crystal layer (17) arranged between the first electrode (10) and the second electrode (20). At least one of the first electrode (10) and the second electrode (20) includes a plurality of first transparent electrodes (13), a plurality of second transparent electrodes (15), and an inter-layer film (14). The plurality of first transparent electrodes (13) and the plurality of second transparent electrodes (15) are alternately arranged in stripes. The inter-layer film (14) is formed on the plurality of first transparent electrodes (13). The plurality of second transparent electrodes (15) are formed on the inter-layer film (14).

摘要翻译： 根据本发明的光偏转元件（100A）是包括形成有第一电极（10）的第一基板（11）和第二电极（20）的第二基板（21）的光学偏转元件 以及布置在第一电极（10）和第二电极（20）之间的液晶层（17）。 第一电极（10）和第二电极（20）中的至少一个包括多个第一透明电极（13），多个第二透明电极（15）和层间膜（14）。 多个第一透明电极（13）和多个第二透明电极（15）交替排列成条纹。 层间膜（14）形成在多个第一透明电极（13）上。 多个第二透明电极（15）形成在层间膜（14）上。

公开(公告)号：US20120287085A1

公开(公告)日：2012-11-15

申请号：US13519616

申请日：2010-10-22

申请人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh

发明人： Ryuzo Yuki ,  Naru Usukura ,  Hiromi Katoh

IPC分类号： G06F3/042

CPC分类号： G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2310/0237 ,  G09G2310/061

摘要： A liquid crystal display device is provided with a liquid crystal panel 20 including a plurality of optical sensors, a white backlight 31, and an infrared backlight 32. The infrared backlight 32 is turned on and off with predetermined timings. One part of the optical sensors detect light at the time of turn-on of the infrared backlight 32, and the other part of the optical sensors detect light at the time of turn-off of the infrared backlight 32. One part of the optical sensors is specified as operating optical sensors. A drive circuit of the liquid crystal panel 20 includes a black insertion unit 11, and drives the liquid crystal panel 20 so as to partially perform black display corresponding to the operating optical sensors. This widens an effective region of the optical sensor included in the display device.

摘要翻译： 液晶显示装置设置有包括多个光学传感器，白色背光源31和红外线背光源32的液晶面板20.红外线背光源32以预定的定时被接通和断开。 光传感器的一部分在红外线背光源32的接通时检测光，另一部分的光学传感器在红外线背光源32的关断时检测光。一部分光学传感器 被指定为操作光学传感器。 液晶面板20的驱动电路包括黑色插入单元11，并且驱动液晶面板20，以部分地执行与操作的光学传感器对应的黑色显示。 这扩大了包括在显示装置中的光学传感器的有效区域。

公开(公告)号：US08525953B2

公开(公告)日：2013-09-03

申请号：US13497383

申请日：2010-06-08

申请人： Hiromi Katoh ,  Yasuhiro Sugita ,  Kohhei Tanaka ,  Kaoru Yamamoto ,  Naru Usukura ,  Hiroaki Shigeta

发明人： Hiromi Katoh ,  Yasuhiro Sugita ,  Kohhei Tanaka ,  Kaoru Yamamoto ,  Naru Usukura ,  Hiroaki Shigeta

IPC分类号： G02F1/133

CPC分类号： G06F3/0412 ,  G06F3/0418 ,  G06F3/042 ,  G09G3/3406 ,  G09G2360/144 ,  G09G2360/148

摘要： A plurality of first and second sensor pixel circuits each sensing light during a designated sensing period and retaining the amount of sensed light otherwise are arranged in a pixel region. A backlight is turned on once for a predetermined time in one-frame period. A sensing period when the backlight is turned on and a sensing period when the backlight is turned off are set once, respectively, in the one-frame period. The first sensor pixel circuit is reset. The second sensor pixel circuit is reset. Read from sensor pixel circuits of two types is performed in parallel in a line sequential manner during a period other than the periods and. A difference circuit provided outside of the sensor pixel circuits is used for obtaining a difference between an amount of light when the backlight is turned on and an amount of light when the backlight is turned off.

摘要翻译： 多个第一和第二传感器像素电路在指定的检测周期期间感测光并保持感测光的量，否则布置在像素区域中。 背光源在一帧周期内打开一段预定时间。 在一帧期间分别设定背光源开启的感测期间和背光源关闭时的感测期间一次。 第一传感器像素电路被复位。 第二传感器像素电路被复位。 从周期和周期以外的期间以线顺序的方式并行地进行两种类型的传感器像素电路的读取。 设置在传感器像素电路外部的差分电路用于获得当背光打开时的光量与背光被关闭时的光量之间的差。

公开(公告)号：US09064460B2

公开(公告)日：2015-06-23

申请号：US13698745

申请日：2011-05-19

申请人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

发明人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

IPC分类号： G06F3/042 ,  G09G3/34 ,  G02F1/1333 ,  G02F1/135 ,  G02F1/133

CPC分类号： G09G3/3406 ,  G02F1/13338 ,  G02F1/1354 ,  G02F2001/13312 ,  G06F3/042 ,  G09G2360/145

摘要： Provided is a display device that has a photodetection element in a pixel, and has an input function that is not dependent on the light environment. The display device includes a photosensor in a pixel region. The photosensor includes a first sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when a light source for the sensor is lit, and a second sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when the light source is extinguished. The photosensor has, as operation modes in one frame period, a sensor drive mode for obtaining sensor signals from the first and second sensor pixel circuits, a first correction data acquisition mode for acquiring first correction data for correcting the sensor signal from the first sensor pixel circuit, and a second correction data acquisition mode for acquiring second correction data for correcting the sensor signal from the second sensor pixel circuit.

摘要翻译： 提供一种在像素中具有光电检测元件并具有不依赖于光环境的输入功能的显示装置。 显示装置包括像素区域中的光电传感器。 光传感器包括第一传感器像素电路，其输出对应于当传感器的光源点亮时在累积周期中累积的电荷的传感器信号;以及第二传感器像素电路，其输出对应于在 当光源熄灭时的累积期间。 光传感器具有作为一个帧周期的操作模式的用于从第一和第二传感器像素电路获得传感器信号的传感器驱动模式，用于从第一传感器像素获取用于校正传感器信号的第一校正数据的第一校正数据获取模式 电路，以及第二校正数据获取模式，用于获取用于校正来自第二传感器像素电路的传感器信号的第二校正数据。

公开(公告)号：US09041699B2

公开(公告)日：2015-05-26

申请号：US13698672

申请日：2011-05-19

申请人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

发明人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

IPC分类号： G06F3/038 ,  G06F3/041 ,  G06F3/042 ,  G09G3/36 ,  H01L27/146

CPC分类号： G06F3/0412 ,  G06F3/0418 ,  G06F3/042 ,  G09G3/3648 ,  G09G2360/144 ,  H01L27/14621 ,  H01L27/14645

摘要： Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver (5) has: (a) a sensor drive mode in which a sensor drive signal of a first pattern is supplied, and a photosensor signal that corresponds to the amount of light received by the photosensor is output to a signal processing circuit (8), and (b) a correction data acquisition mode in which a sensor drive signal of a second pattern that is different from the first pattern is supplied, and a correction photosensor signal level that corresponds to the case where the photosensor detected a black level or a white level is acquired. The photosensor signal levels obtained in the two modes while the ambient environment is controlled to a predetermined condition are stored in a memory. The signal processing circuit (8) corrects the photosensor signal in the sensor drive mode using the correction photosensor signal level that was corrected using the data for resolving offset.

摘要翻译： 提供了一种在像素中具有光电检测元件并且可以在操作期间自动校正光电传感器信号，同时分辨相对于真黑电平或白电平的偏移误差的显示装置。 作为操作模式，传感器行驱动器（5）具有：（a）提供第一图案的传感器驱动信号的传感器驱动模式，并且输出与由光传感器接收的光量相对应的光传感器信号 信号处理电路（8），和（b）校正数据获取模式，其中提供与第一图案不同的第二图案的传感器驱动信号，以及校正光电传感器信号电平，对应于 光电传感器检测到黑电平或获取白电平。 在周围环境被控制到预定条件的情况下，在两种模式中获得的光传感器信号电平被存储在存储器中。 信号处理电路（8）使用使用用于解析偏移的数据进行校正的校正光电传感器信号电平来校正传感器驱动模式下的光传感器信号。

公开(公告)号：US20130057518A1

公开(公告)日：2013-03-07

申请号：US13698672

申请日：2011-05-19

申请人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

发明人： Yasuhiro Sugita ,  Kohei Tanaka ,  Naru Usukura ,  Tadashi Nemoto ,  Hiromi Katoh

IPC分类号： G06F3/042

CPC分类号： G06F3/0412 ,  G06F3/0418 ,  G06F3/042 ,  G09G3/3648 ,  G09G2360/144 ,  H01L27/14621 ,  H01L27/14645

摘要： Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver (5) has: (a) a sensor drive mode in which a sensor drive signal of a first pattern is supplied, and a photosensor signal that corresponds to the amount of light received by the photosensor is output to a signal processing circuit (8), and (b) a correction data acquisition mode in which a sensor drive signal of a second pattern that is different from the first pattern is supplied, and a correction photosensor signal level that corresponds to the case where the photosensor detected a black level or a white level is acquired. The photosensor signal levels obtained in the two modes while the ambient environment is controlled to a predetermined condition are stored in a memory. The signal processing circuit (8) corrects the photosensor signal in the sensor drive mode using the correction photosensor signal level that was corrected using the data for resolving offset.

摘要翻译： 提供了一种在像素中具有光电检测元件并且可以在操作期间自动校正光电传感器信号，同时分辨相对于真黑电平或白电平的偏移误差的显示装置。 作为操作模式，传感器行驱动器（5）具有：（a）提供第一图案的传感器驱动信号的传感器驱动模式，并且输出与由光传感器接收的光量相对应的光传感器信号 信号处理电路（8），和（b）校正数据获取模式，其中提供与第一图案不同的第二图案的传感器驱动信号，以及校正光电传感器信号电平，对应于 光电传感器检测到黑电平或获取白电平。 在周围环境被控制到预定条件的情况下，在两种模式中获得的光传感器信号电平被存储在存储器中。 信号处理电路（8）使用使用用于解析偏移的数据进行校正的校正光电传感器信号电平来校正传感器驱动模式下的光传感器信号。