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    • 1. 发明申请
    • DISPLAY DEVICE AND DISPLAY METHOD
    • 显示装置和显示方法
    • US20140375622A1
    • 2014-12-25
    • US14375832
    • 2012-07-09
    • Yousuke NakagawaKazuhiro Maeda
    • Yousuke NakagawaKazuhiro Maeda
    • G09G3/36
    • G09G3/3674G09G3/2092G09G3/3225G09G3/3614G09G2310/0224G09G2320/0219
    • A scanning order calculating portion (23) included in a display control circuit (200) determines the order of selecting all rows by repeating the following: the row for which the total amount of potential variation relative to a reference row is the lowest is selected as a subsequent row, and the row having been selected as the subsequent row is used as the next reference row in a similar operation to determine the next row to be set as a subsequent row. A scanning order setting portion (24) controls an address outputting portion (26) such that the scanning signal lines are selected in the determined order, and also controls digital image signals DV outputted by output frame memory (22). Power consumed by driving video signal lines can be reduced by selecting the scanning signal lines in such an order that the total amount of potential variation of the video signal lines becomes smaller.
    • 包括在显示控制电路(200)中的扫描顺序计算部分(23)通过重复以下来确定选择所有行的顺序:相对于参考行的电位变化的总量最低的行被选择为 后续行,并且已经被选择作为后续行的行被用作类似操作中的下一个参考行,以确定要设置为后续行的下一行。 扫描顺序设定部(24)控制地址输出部(26),使得以确定的顺序选择扫描信号线,并且还控制由输出帧存储器(22)输出的数字图像信号DV。 可以通过以使得视频信号线的电位变化的总量变得更小的顺序选择扫描信号线来减少驱动视频信号线所消耗的功率。
    • 5. 发明申请
    • DISPLAY DEVICE
    • 显示设备
    • US20130250225A1
    • 2013-09-26
    • US13990341
    • 2011-11-24
    • Kazuhiro MaedaYousuke Nakagawa
    • Kazuhiro MaedaYousuke Nakagawa
    • G02F1/1343
    • G02F1/134336G02F1/13338G02F1/134309G02F2001/134318
    • The purpose of the present invention is to ensure uniformity among pixels when an electrode for a touch sensor also acts as an electrode for image display at the same time. This display device includes: a circuit substrate; a plurality of pixel electrodes (12) that are arranged in a matrix on a plane that is parallel to the circuit substrate; a liquid crystal layer that can exhibit an image display function on the basis of an image signal supplied to the plurality of pixel electrodes (12), a plurality of driver electrodes (14) arranged in the same layer with gaps therebetween, which can generate an electric field with the pixel electrodes (12) to alter the state of the liquid crystal layer; and a plurality of detection electrodes in the same layer that can be capacitively coupled to the plurality of driver electrodes, respectively, in which at least one of the plurality of driver electrodes (14) is provided with slits (20).
    • 本发明的目的是确保当触摸传感器的电极同时用作图像显示用电极时,确保像素之间的均匀性。 该显示装置包括:电路基板; 在平行于电路基板的平面上排列成矩阵状的多个像素电极(12); 基于提供给多个像素电极(12)的图像信号可以呈现图像显示功能的液晶层,多个驱动电极(14),其间布置有相同的间隙,可以产生 电场与像素电极(12)改变液晶层的状态; 以及分别与能够电容耦合到多个驱动电极的同一层中的多个检测电极,其中多个驱动电极(14)中的至少一个设置有狭缝(20)。
    • 6. 发明申请
    • DISPLAY DEVICE
    • 显示设备
    • US20130057527A1
    • 2013-03-07
    • US13697864
    • 2011-05-19
    • Kohei TanakaYasuhiro SugitaNaru UsukuraKazuhiro MaedaYousuke Nakagawa
    • Kohei TanakaYasuhiro SugitaNaru UsukuraKazuhiro MaedaYousuke Nakagawa
    • G06F3/038
    • G06F3/0418G06F3/0412G06F3/042
    • Provided is a display device that is capable of ensuring a wide dynamic range of an optical sensor even in the case where an offset due to ambient temperature changes is compensated with use of an output of a reference element. The display device has optical sensors in a pixel region of an active matrix substrate (100), wherein the optical sensors include a photodetecting sensor which outputs a sensor signal according to an amount of received light, and a reference sensor which has a configuration obtained by adding a light shielding film to the photodetecting sensor and outputs a sensor signal according to an offset component. The display device includes: an offset comparison circuit (61) that determines a degree of divergence between the sensor signal output from the reference sensor and a standard offset value; and a driving signal generation circuit (62) that adjusts a potential of a driving signal for the optical sensors according to the degree of divergence determined by the offset comparison circuit (61).
    • 提供了即使在使用参考元件的输出来补偿由于环境温度变化引起的偏移的情况下也能够确保光学传感器的宽动态范围的显示装置。 显示装置在有源矩阵基板(100)的像素区域具有光传感器,其中,光传感器包括:根据接收光量输出传感器信号的光检测传感器;以及基准传感器, 向光电检测传感器添加遮光膜,并根据偏移分量输出传感器信号。 显示装置包括:偏移比较电路(61),其确定从基准传感器输出的传感器信号与标准偏移值之间的发散程度; 以及根据由偏移比较电路(61)确定的发散程度来调整光学传感器的驱动信号的电位的驱动信号生成电路(62)。
    • 10. 发明申请
    • PHOTOSENSOR AND DISPLAY DEVICE
    • 照相机和显示设备
    • US20120154354A1
    • 2012-06-21
    • US13391654
    • 2010-07-12
    • Sachio TsujinoYousuke NakagawaKazuhiro MaedaIchiroh ShirakiHiroaki SugiyamaNobuhiro Kuwabara
    • Sachio TsujinoYousuke NakagawaKazuhiro MaedaIchiroh ShirakiHiroaki SugiyamaNobuhiro Kuwabara
    • G09G5/02G01J1/46
    • H01L27/14643G06F3/0412G06F3/042H04N5/357
    • By reducing the potential drop of a storage node that occurs due to feedthrough, the capacitance of a storage capacitor is reduced and sensor sensitivity is improved. In a photosensor, the first terminal of a storage capacitor (C2) and the gate of a MOS transistor (M1), which outputs a signal in accordance with the potential of a storage node (N2), are connected to the storage node (N2). A forward biased pulse voltage is supplied to the anode of a first photodiode (DS) in a reset period, and a reverse biased voltage is supplied to the anode of the first photodiode in a storage period and a readout period. A reverse biased voltage is supplied to the anode of a second photodiode (DM) in all operation periods. A voltage that keeps the potential of the storage node lower than the threshold value of the MOS transistor (M1) is supplied to the second terminal of the storage capacitor in the reset period and the storage period, and a voltage that thrusts the potential of the storage node (N2) upward to the threshold value of the MOS transistor (M1) or higher is supplied to the second terminal of the storage capacitor in the readout period.
    • 通过减少由于馈通而发生的存储节点的潜在下降,存储电容器的电容降低并且传感器灵敏度得到改善。 在光电传感器中,根据存储节点(N2)的电位输出信号的存储电容器(C2)的第一端子和MOS晶体管(M1)的栅极连接到存储节点(N2 )。 在复位周期中将正向偏置脉冲电压提供给第一光电二极管(DS)的阳极,并且在存储周期和读出周期中向第一光电二极管的阳极提供反向偏置电压。 在所有操作周期中,向第二光电二极管(DM)的阳极提供反向偏置电压。 在复位期间和保存期间,保持存储节点的电位低于MOS晶体管(M1)的阈值的电压被提供给存储电容器的第二端子,并且将电压 存储节点(N2)向上升到MOS晶体管(M1)或更高的阈值,在读出期间提供给存储电容器的第二端。