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1. 发明申请

US20170074722A1 ULTRAVIOLET LIGHT SENSING CIRCUIT AND SENSING SYSTEM 有权
标题翻译： ULTRAVIOLET光感测电路和感应系统
公开(公告)号：US20170074722A1
公开(公告)日：2017-03-16
申请号：US15123239
申请日：2014-11-14
申请人： PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL
发明人： Shengdong ZHANG , Congwei LIAO , Zhijin HU , Wenjie LI , Junmei LI
IPC分类号： G01J1/44 , G01J1/42
CPC分类号： G01J1/44 , G01J1/429
摘要： An ultraviolet light sensing circuit and sensing system. The ultraviolet light sensing circuit comprises a modulation unit and a phase delay unit, wherein the modulation unit comprises a first stage of inverter which is used for sensing ultraviolet light and is used as a voltage feedback modulation stage; and the phase delay unit comprises N stages of inverters which are connected in sequence, where N is an even number which is greater than or equal to 2. The modulation unit is connected to the phase delay unit in sequence, and the output voltage of the phase delay unit is fed to the modulation unit; and the modulation unit is modulated by a control signal which is a pulse signal. The ultraviolet light sensing circuit and sensing system can be used for ultraviolet light information communications. The ultraviolet light sensing circuit can sense ultraviolet light signals and output amplitude modulation wave signals.
摘要翻译：紫外线感测电路和感测系统。紫外光检测电路包括调制单元和相位延迟单元，其中调制单元包括用于感测紫外光的第一级反相器，并用作电压反馈调制级; 并且相位延迟单元包括顺序连接的N级反相器，其中N是大于或等于2的偶数。调制单元依次连接到相位延迟单元，并且输出电压相位延迟单元馈送到调制单元; 调制单元由作为脉冲信号的控制信号进行调制。紫外线感测电路和感测系统可用于紫外线信息通信。紫外线感测电路可以感测紫外光信号并输出幅度调制波信号。

2. 发明申请

US20180144678A1 PHOTOELECTRIC SENSOR AND DISPLAY PANEL 审中-公开
公开(公告)号：US20180144678A1
公开(公告)日：2018-05-24
申请号：US15572317
申请日：2016-03-24
申请人： Peking University Shenzhen Graduate School
发明人： Shengdong ZHANG , Congwei LIAO , Zhijin HU , Shijie CAO , Junmei LI , Wenjie LI
IPC分类号： G09G3/20 , G02F1/01 , G06F3/041 , H01L27/12 , H01L29/66
CPC分类号： G09G3/2092 , G02F1/0105 , G06F3/0412 , G09G3/20 , H01L27/1214 , H01L29/66265 , H01L29/6675
摘要： A photoelectric sensor and a display panel comprise: a pulse transmission unit comprising a control node, after obtaining a driving voltage, the control node of the pulse transmission unit transmitting first clock signals to a signal output terminal; a pulse control unit configured to receive scanning signals from a signal input terminal and charging the control node of the pulse transmission unit so as to provide the driving voltage; and photoelectric sensing unit configured to provide a leakage current in response to the intensity of external illumination when receiving the external illumination, the leakage current discharging the control node of the pulse transmission unit, so that the voltage at the control node of the pulse transmission unit is less than the driving voltage after a period of time. The circuit of the photoelectric sensor utilizes the existing scanning signals and clock signals of a conventional display panel, with no need for an extra control signal, and therefore the circuit is simple in structure, and more suitable for being integrated on the display panel.

3. 发明申请

US20170213500A1 CONTROLLABLE VOLTAGE SOURCE, SHIFT REGISTER AND UNIT THEREOF, AND DISPLAY 审中-公开
公开(公告)号：US20170213500A1
公开(公告)日：2017-07-27
申请号：US15329143
申请日：2014-11-14
申请人： PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL
发明人： Shengdong ZHANG , Congwei LIAO , Zhijin HU , Wenjie LI , Junmei LI
IPC分类号： G09G3/20 , H02M3/07 , G11C19/28
CPC分类号： G09G3/2092 , G09G3/20 , G09G3/36 , G09G3/3677 , G09G2300/043 , G09G2300/0809 , G09G2310/0286 , G09G2330/028 , G11C5/145 , G11C19/28 , H02M3/07
摘要： A controllable voltage source, comprising a control module (1), a storage module (2) and an output module (3); the control module (1) is coupled between a high level end and a low level end; the storage module (2) comprises a storage capacitor; two ends of the storage capacitor are respectively coupled to the control module (1) to form a first terminal and a second terminal; the output module (3) is coupled to the second terminal, and the signal output end thereof is used to output to an external circuit the voltage signal of the controllable voltage source; the control module (1) responds the effective level of a first clock signal so as to enable the first terminal to be coupled to the high level end, and the first terminal is charged from the high level end; the control module (1) responds the effective level of a second clock signal so as to enable the second terminal to be coupled to the high level end, and the second terminal is charged from the high level end; and the first terminal is coupled to the low level end and discharges via the low level end. The effective level of the first clock signal does not overlap with the effective level of the second clock signal. Also disclosed are a shift register and unit thereof, and display based on the controllable voltage source.

4. 发明申请

US20170097650A1 ADAPTIVE VOLTAGE SOURCE, SHIFT REGISTER AND UNIT THEREOF, AND DISPLAY 有权
公开(公告)号：US20170097650A1
公开(公告)日：2017-04-06
申请号：US15126929
申请日：2014-11-14
申请人： PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL
发明人： Shengdong ZHANG , Congwei LIAO , Zhijin HU , Wenjie LI , Junmei LI
IPC分类号： G05F1/625 , G09G3/20 , G11C19/18
CPC分类号： G05F1/625 , G09G3/20 , G09G3/2092 , G09G2300/0408 , G09G2310/0267 , G09G2310/0275 , G09G2310/0286 , G09G2310/0289 , G09G2310/08 , G09G2330/021 , G11C19/184
摘要： An adaptive voltage source, comprising a signal output end, and a reference resistance forming circuit and a sensing module connected in series between a voltage source and a low power level; the sensing module comprises a sensing end coupled to a transistor to be sensed to sense the threshold voltage drift of the transistor to be sensed in a device circuit; the equivalent resistance of the sensing module increases with the increase of the sensed threshold voltage drift; and the signal output end is coupled to a first node coupled to the reference resistance forming circuit and the sensing module, and is used to output adaptive voltage. The output adaptive voltage is adjusted via the threshold voltage drift sensed by the sensing module. Based on the circuit, also disclosed are a shift register and unit thereof, and display.

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