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。

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：US20110069253A1

公开(公告)日：2011-03-24

申请号：US12993303

申请日：2009-03-30

申请人： Takehiro Murao ,  Naru Usukura ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Toshiyuki Yoshimizu

发明人： Takehiro Murao ,  Naru Usukura ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Toshiyuki Yoshimizu

IPC分类号： G02F1/1335

CPC分类号： G02F1/133526 ,  G02F2001/133567

摘要： One of the objects is to improve the light utilization efficiency of a liquid crystal display panel with microlenses.A liquid crystal display device of the present invention, including a plurality of pixels arranged in a matrix along a first direction and a second direction which are perpendicular to each other, includes a TFT substrate, a counter substrate, a liquid crystal layer, a plurality of microlenses, and a backlight provided on a side of the plurality of microlenses which is opposite to the TFT substrate. The plurality of microlenses includes a plurality of lenticular lenses extending in the first direction, the plurality of lenticular lenses being arranged side by side along the second direction. The backlight includes a prism sheet placed over a first surface of the light guide plate which is closer to the microlens. The first surface of the light guide plate is provided with a prism array that includes a plurality of prisms extending in the second direction, the plurality of prisms being arranged side by side along the first direction.

摘要翻译： 其目的之一是提高具有微透镜的液晶显示面板的光利用效率。 本发明的液晶显示装置具有TFT基板，对置基板，液晶层，多个基板，具有沿着第一方向和第二方向相互排列成矩阵状的多个像素， 的微透镜，以及设置在与TFT基板相对的多个微透镜的一侧的背光。 多个微透镜包括沿第一方向延伸的多个双凸透镜，多个双凸透镜沿着第二方向并排布置。 背光源包括放置在更靠近微透镜的导光板的第一表面上的棱镜片。 导光板的第一表面设置有棱镜阵列，其包括在第二方向上延伸的多个棱镜，多个棱镜沿着第一方向并排设置。

公开(公告)号：US20110025956A1

公开(公告)日：2011-02-03

申请号：US12988216

申请日：2009-01-23

申请人： Naru Usukura ,  Toshiyuki Yoshimizu ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Takehiro Murao

发明人： Naru Usukura ,  Toshiyuki Yoshimizu ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Takehiro Murao

IPC分类号： G02F1/1335

CPC分类号： G02F1/133526 ,  G02B3/0056 ,  G02B5/0215 ,  G02B6/0053 ,  G02F1/133504 ,  G02F2001/133607

摘要： A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction.A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d>p·((2n)2−1)1/2 where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.

摘要翻译： 以低成本提供高图像质量的液晶显示装置，其中视角仅在特定方向上被限制。 本发明的具有矩阵排列的多个像素的液晶显示装置包括：第一基板; 第二基板; 介于所述第一基板和所述第二基板之间的液晶层; 以及多个微透镜，其设置在与所述液晶层相反的所述第一基板的表面上，所述微透镜被配置为与所述多个像素对应，并且所述微透镜具有被配置为收集入射光的曲面 ，其中d满足以下关系：d> p·（（2n）2-1）1/2其中d是第一衬底的厚度，p是多个像素的排列间距，n是折射率 的第一基材的主要材料。

公开(公告)号：US20130120321A1

公开(公告)日：2013-05-16

申请号：US13811993

申请日：2011-07-22

申请人： Tadashi Nemoto ,  Naru Usukura ,  Akizumi Fujioka

发明人： Tadashi Nemoto ,  Naru Usukura ,  Akizumi Fujioka

IPC分类号： G09G3/34

CPC分类号： G09G3/3406 ,  G06F3/0412 ,  G06F3/042 ,  G09G3/3648 ,  G09G2330/025 ,  G09G2360/142

摘要： A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light source is turned on. The display device includes: an active matrix substrate; photosensors (9) provided in a pixel region (4) of the active matrix substrate; white LEDs (3a) configured to cause an image to be displayed in the pixel region (4); infrared LEDs (3b) configured to emit light to be reflected and sensed by the photosensors; and a light source control circuit (13) configured to control on and off of the white LEDs (3a) and the infrared LEDs (3b). The light source control circuit (13) reduces an amount of drive current supplied to the white LEDs (3a) while the infrared LEDs (3b) are on to below an amount of drive current supplied to the white LEDs (3a) when the infrared LEDs (3b) are off.

摘要翻译： 提供了一种具有光电传感器的显示装置，其具有可见光和不可见光源的组合，其中当不可见光源被接通时电压降最小化。 显示装置包括：有源矩阵基板; 设置在有源矩阵基板的像素区域（4）中的光电传感器（9） 被配置为使像素区域（4）中显示图像的白色LED（3a）; 红外LED（3b）被配置为发射光以被光电传感器反射和感测; 以及被配置为控制所述白色LED（3a）和所述红外线LED（3b）的接通和断开的光源控制电路（13）。 当红外线LED（3b）接通时，光源控制电路（13）减少提供给白色LED（3a）的驱动电流的量，使其低于提供给白色LED（3a）的驱动电流量，当红外LED （3b）关闭。

公开(公告)号：US08279377B2

公开(公告)日：2012-10-02

申请号：US12988216

申请日：2009-01-23

申请人： Naru Usukura ,  Toshiyuki Yoshimizu ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Takehiro Murao

发明人： Naru Usukura ,  Toshiyuki Yoshimizu ,  Seishi Kosegawa ,  Tadashi Nemoto ,  Takehiro Murao

IPC分类号： G02F1/1335 ,  G09F13/04 ,  G02B27/10

CPC分类号： G02F1/133526 ,  G02B3/0056 ,  G02B5/0215 ,  G02B6/0053 ,  G02F1/133504 ,  G02F2001/133607

摘要： A liquid crystal display device of high image quality is provided at a low cost, in which the viewing angle is restricted only in a specific direction. A liquid crystal display device of the present invention, which has a plurality of pixels in a matrix arrangement, includes: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a plurality of microlenses provided on a surface of the first substrate which is opposite to the liquid crystal layer, the microlenses being arranged so as to correspond to the plurality of pixels, and each of the microlenses having a curved surface configured to collect incoming light, wherein d satisfies the following relationship: d>p.((2n)2−1)½ where d is a thickness of the first substrate, p is an arrangement pitch of the plurality of pixels, and n is a refractive index of the major material of the first substrate.

摘要翻译： 以低成本提供高图像质量的液晶显示装置，其中视角仅在特定方向上被限制。 本发明的具有矩阵排列的多个像素的液晶显示装置包括：第一基板; 第二基板; 插入在第一基板和第二基板之间的液晶层; 以及多个微透镜，其设置在与所述液晶层相反的所述第一基板的表面上，所述微透镜被配置为与所述多个像素对应，并且所述微透镜具有被配置为收集入射光的曲面 其中d满足以下关系：d> p（（2n）2-1）1/2其中d是第一衬底的厚度，p是多个像素的排列间距，n是折射率 第一基材的主要材料。

公开(公告)号：US08449352B2

公开(公告)日：2013-05-28

申请号：US12687264

申请日：2010-01-14

申请人： Masanori Fukui ,  Minoru Shirakawa ,  Tadashi Nemoto ,  Tadashi Sato

发明人： Masanori Fukui ,  Minoru Shirakawa ,  Tadashi Nemoto ,  Tadashi Sato

IPC分类号： B24B19/00

CPC分类号： C03B19/095 ,  B24B19/16 ,  H05B7/085

摘要： A carbon electrode grinding apparatus for shaping a front end of an arc discharge carbon electrode is provided with front end grinding blades configured to grind a front end surface of the carbon electrode, lateral surface grinding blades configured to grind a surface from the front end surface to a base end of the carbon electrode, and rotation means configured to rotate and drive the front end grinding blades and the lateral surface grinding blades around a rotation axis line coincident with an axis line of the carbon electrode.

摘要翻译： 用于使电弧放电碳电极的前端成形的碳电极研磨装置设置有前端研磨刀片，其被配置为研磨碳电极的前端表面，侧面研磨刀片被构造成从前端表面研磨表面到 碳电极的基端，以及旋转装置，被配置为围绕与碳电极的轴线重合的旋转轴线旋转并驱动前端研磨刀片和侧面研磨刀片。

公开(公告)号：US20130063407A1

公开(公告)日：2013-03-14

申请号：US13698749

申请日：2011-05-12

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

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

IPC分类号： G06F3/038

CPC分类号： G06F3/0416 ,  G06F3/0412 ,  G06F3/042

摘要： Disclosed is a display device that can compensate for variations of light-detecting element while securing a wide dynamic range of light sensors. This is a display device equipped with light sensors having operation modes for one frame period, which are: a sensor driving mode for obtaining sensor signals, a first correction data acquisition mode for obtaining a first correction data, and a second correction data acquisition mode for obtaining a second correction data. This display device further includes a memory that stores light sensor signal levels obtained, under a controlled ambient environmental condition, by driving the light sensors in the above-mentioned three modes as offset elimination data. A signal-processing circuit uses the first correction data and the second correction data, and the light sensor signal level corrected with the offset elimination data to correct the light sensor signal obtained in the sensor driving mode.

摘要翻译： 公开了一种显示装置，其可以在确保宽动态范围的光传感器的同时补偿光检测元件的变化。 这是配备有具有一个帧周期的操作模式的光传感器的显示装置，它们是：用于获得传感器信号的传感器驱动模式，用于获得第一校正数据的第一校正数据获取模式和用于获取第一校正数据的第二校正数据获取模式 获得第二校正数据。 该显示装置还包括存储器，其存储在受控的环境环境条件下通过以上述三种模式驱动光传感器获得的光传感器信号电平作为偏移消除数据。 信号处理电路使用第一校正数据和第二校正数据，以及利用偏移消除数据校正的光传感器信号电平来校正在传感器驱动模式中获得的光传感器信号。