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    • 1. 发明授权
    • Display device
    • 显示设备
    • US09335854B2
    • 2016-05-10
    • US13497354
    • 2010-06-08
    • Yasuhiro SugitaKohhei TanakaKaoru YamamotoHiromi Katoh
    • Yasuhiro SugitaKohhei TanakaKaoru YamamotoHiromi Katoh
    • G06F3/038G09G5/00G06F3/041G09G3/34G06F3/042
    • G06F3/0412G06F3/0416G06F3/042G09G3/3406G09G2360/144G09G2360/148
    • A plurality of first sensor pixel circuits each sensing light during a sensing period when a backlight is turned on and retaining the amount of sensed light otherwise in accordance with a clock signal and a plurality of second sensor pixel circuits each sensing light during a sensing period when the backlight is turned off and retaining the amount of sensed light otherwise in accordance with a clock signal are arranged in a pixel region. The sensor pixel circuits of two types are connected to different output lines, so that a difference between two output signals is obtained at the outside of the sensor pixel circuit. The sensor pixel circuits described above are used for detecting a difference between an amount of light to be incident when the backlight is turned on and an amount of light to be incident when the backlight is turned off.
    • 多个第一传感器像素电路,每个在感测时段期间感测光,当背光被接通时,并且在感测时段期间根据时钟信号和多个第二传感器像素电路保持感测光的量,否则每个感测光都感测到光 背光源被关闭,并且保持根据时钟信号的感测光量保持在像素区域中。 两种类型的传感器像素电路连接到不同的输出线,从而在传感器像素电路的外部获得两个输出信号之间的差异。 上述传感器像素电路用于检测当背光被接通时要入射的光量与当背光被关闭时入射的光量之间的差异。
    • 2. 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)。
    • 3. 发明申请
    • Display Device
    • 显示设备
    • US20120262424A1
    • 2012-10-18
    • US13497268
    • 2010-06-08
    • Kohhei TanakaYasuhiro SugitaKaoru YamamotoChristopher Brown
    • Kohhei TanakaYasuhiro SugitaKaoru YamamotoChristopher Brown
    • G06F3/042
    • G06F3/0412G06F3/042G09G3/34G09G3/3406G09G2300/08G09G2310/0237G09G2360/144G09G2360/145
    • A plurality of sensor pixel circuits each including two photodiodes, one accumulation node accumulating charge corresponding to an amount of light, and a read transistor having a control terminal connected to the accumulation node are arranged in a pixel region. In accordance with a clock signal, when a backlight is turned on, a transistor turns on, a current flows through the photodiode, and a potential at the accumulation node drops. When the backlight is turned off, a transistor turns on, a current flows through the photodiode, and the potential at the accumulation node rises. Sensitivity characteristics of the two photodiodes may be changed using the clock signal. The sensor pixel circuit described above is used for detecting a difference between an amount of light to be incident when the backlight is turned on and an amount of light to be incident when the backlight is turned off.
    • 每个包括两个光电二极管的多个传感器像素电路,一个累积节点累积对应于光量的电荷,以及具有连接到累积节点的控制端子的读出晶体管被布置在像素区域中。 根据时钟信号,当背光源导通时,晶体管导通,电流流过光电二极管,并且累积节点处的电位下降。 当背光被关闭时,晶体管导通,电流流过光电二极管,并且累积节点的电位上升。 可以使用时钟信号来改变两个光电二极管的灵敏度特性。 上述传感器像素电路用于检测当背光被接通时要入射的光量与当背光被关闭时入射的光量之间的差异。
    • 6. 发明授权
    • Touch-sensor-equipped display device comrpising photodetecting elements
    • 配有触摸传感器的显示设备兼容光电元件
    • US09069412B2
    • 2015-06-30
    • US13697876
    • 2011-05-19
    • Kohei TanakaYasuhiro SugitaKazuhiro MaedaHiroaki Sugiyama
    • Kohei TanakaYasuhiro SugitaKazuhiro MaedaHiroaki Sugiyama
    • G06F3/038G06F3/042G06F3/041G09G3/34
    • G06F3/042G06F3/0412G09G3/3406G09G2360/145
    • Provided is a display device having a photodetecting element in a pixel, and having an input function that is not dependent on light environments. This is a display device having an optical sensor in a pixel region. The optical sensor includes a first sensor pixel circuit that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an ON time of a light source for the sensor; and a second sensor pixel circuit that that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an OFF time of the light source. A sensor driving circuit for driving the first sensor pixie circuit and the second sensor pixel circuit supplies reset signals (RST1, RST2) to the first sensor pixel circuit and the second sensor pixel circuit, respectively, during vertical flyback periods in pixel display in the pixel region.
    • 提供了一种在像素中具有受光元件并具有不依赖于光环境的输入功能的显示装置。 这是在像素区域中具有光学传感器的显示装置。 光传感器包括第一传感器像素电路,其输出对应于在传感器的光源的接通时间期间在累积周期期间累积的电荷的传感器信号; 以及第二传感器像素电路,其输出与在光源的OFF时间期间的累积期间累积的电荷对应的传感器信号。 用于驱动第一传感器像素电路和第二传感器像素电路的传感器驱动电路在像素的像素显示期间的垂直回扫期间分别向第一传感器像素电路和第二传感器像素电路提供复位信号(RST1,RST2) 地区。
    • 7. 发明授权
    • Display device with touch sensor including photosensor
    • 具有触摸传感器的显示设备,包括光电传感器
    • US09064460B2
    • 2015-06-23
    • US13698745
    • 2011-05-19
    • Yasuhiro SugitaKohei TanakaNaru UsukuraTadashi NemotoHiromi Katoh
    • Yasuhiro SugitaKohei TanakaNaru UsukuraTadashi NemotoHiromi Katoh
    • G06F3/042G09G3/34G02F1/1333G02F1/135G02F1/133
    • G09G3/3406G02F1/13338G02F1/1354G02F2001/13312G06F3/042G09G2360/145
    • 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.
    • 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。
    • 8. 发明授权
    • Display device with touch sensor including signal processing circuit with photosensor
    • 具有触摸传感器的显示设备,包括带光电传感器的信号处理电路
    • US09041699B2
    • 2015-05-26
    • US13698672
    • 2011-05-19
    • Yasuhiro SugitaKohei TanakaNaru UsukuraTadashi NemotoHiromi Katoh
    • Yasuhiro SugitaKohei TanakaNaru UsukuraTadashi NemotoHiromi Katoh
    • G06F3/038G06F3/041G06F3/042G09G3/36H01L27/146
    • G06F3/0412G06F3/0418G06F3/042G09G3/3648G09G2360/144H01L27/14621H01L27/14645
    • 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.
    • 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。
    • 9. 发明授权
    • Display device
    • 显示设备
    • US08803791B2
    • 2014-08-12
    • US13511957
    • 2010-11-30
    • Yasuhiro SugitaKohei TanakaHiromi KatohChristopher Brown
    • Yasuhiro SugitaKohei TanakaHiromi KatohChristopher Brown
    • G09G3/36G02F1/1362G06F3/042G06F3/041G02F1/133
    • G06F3/0412G02F1/13624G02F2001/13312G06F3/042G09G3/3648G09G2300/0426G09G2360/144
    • Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D1; a reset signal line RST for supplying a reset signal; a readout signal line RWS for supplying a readout signal; an accumulation node having a potential (VINT) that varies with an amount of light received by the diode D1 during a period from supply of the reset signal to supply of the readout signal; an amplifying element C1 for amplifying VINT according to the readout signal; and a sensor switching element M2 for reading out the amplified potential and outputting the same to an output line. A potential of a light shielding film LS provided on a back side of the diode is fixed to a constant potential VLS satisfying the following formula: VLS≧VRST.H.
    • 提供一种显示装置,其具有高感光度的光学传感器,其中由于在升压之后的受光面上的照度差引起的累积节点的电位差设定为大于其末端的电位差, 整合期 显示装置包括像素区域中的光学传感器。 光学传感器包括二极管D1; 用于提供复位信号的复位信号线RST; 用于提供读出信号的读出信号线RWS; 累积节点具有在从复位信号的供给到读出信号的供给期间随二极管D1接收的光量而变化的电位(VINT); 用于根据读出信号放大VINT的放大元件C1; 以及用于读出放大电位并将其输出到输出线的传感器开关元件M2。 设置在二极管背面的遮光膜LS的电位固定为满足以下公式的恒定电位VLS:VLS≥VRST.H。