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公开(公告)号：US10026358B2
公开(公告)日：2018-07-17
申请号：US15526881
申请日：2016-10-31
发明人： Xiaoxiang He , Dongmei Wei , Xiaojing Qi
IPC分类号： G09G3/36 , G09G3/325 , G09G3/3291 , H01L27/32
CPC分类号： G09G3/325 , G09G3/3233 , G09G3/3291 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0245 , G09G2310/0256 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , H01L27/3248 , H01L27/3255
摘要： The present application discloses a pixel driving chip for compensating an original signal provided to a pixel structure including a driving transistor having a drain electrode coupled to a light-emitting device, the pixel driving chip includes a control circuit configured to generate at least one control voltage signals for controlling the driving transistor; an acquisition circuit configured to acquire a measured source voltage at a source electrode of the driving transistor under control of the at least one control voltage signals; a computation circuit configured to compute a compensation voltage based on the measured source voltage; a storage circuit configured to store the compensation voltage; a compensation circuit configured to compensate the original signal provided to the driving transistor using the compensation voltage stored in the storage circuit to obtain a compensated signal; and an output circuit configured to output the compensated signal to the driving transistor.
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公开(公告)号：US10403201B2
公开(公告)日：2019-09-03
申请号：US15322463
申请日：2016-07-04
发明人： Xiaoxiang He , Bo Wu , Xiaojing Qi
IPC分类号： G09G3/3233 , G09G3/3258 , G09G3/3266 , G09G3/3275 , H01L27/32
摘要： The present disclosure provides a pixel driving circuit, a pixel driving method, a, display panel and a display device. The pixel driving circuit includes a driving transistor, a storage capacitor, a switching control module, a writing control module and a light-emission control module. A gate electrode of the driving transistor is electrically connected to a first electrode of the driving transistor at a threshold compensation stage and a writing stage under the control of the switching control module, so as to write a threshold voltage of the driving transistor into the storage capacitor. A data voltage is written into a second electrode of the driving transistor at the writing stage under the control of the writing control module. According to the present disclosure, the threshold voltage of the driving transistor and the data voltage from the data line are separately written into the storage capacitor through the switching control module and the writing control module, so as to enable a driving current of the driving transistor to be independent of the threshold voltage of the driving transistor. In addition, a reference voltage is written into a second end of the storage capacitor at the writing stage through the writing control module, and the driving current of the driving transistor is enabled to be independent of an on-state voltage of a light-emitting element at a light-emission maintenance stage.
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公开(公告)号：US10262180B2
公开(公告)日：2019-04-16
申请号：US15690033
申请日：2017-08-29
发明人： Xiaoxiang He
IPC分类号： G06K9/00
摘要： A fingerprint identification circuit includes a plurality of fingerprint identification units arranged in an array form. Each fingerprint identification unit includes: an input module configured to apply a detection signal to a sensing module; the sensing module configured to sense a fingerprint and transmit a sensing signal to a source follower; the source follower configured to amplify the sensing signal and output it to an output module; an output control module configured to apply an operating voltage for the source follower to the source follower; the output module configured to output the amplified sensing signal; a resetting module configured to reset an output end of the source follower and an input end of the output module to be at a first level; and an acquisition module configured to enable the input end and an operating voltage input end of the source follower to be electrically connected to each other.
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公开(公告)号：US10255858B2
公开(公告)日：2019-04-09
申请号：US15516268
申请日：2016-07-28
发明人： Xiaoxiang He , Xiaojing Qi
IPC分类号： G09G3/3258 , G09G3/3233 , H01L51/52 , H01L27/32
摘要： The present disclosure relates to a pixel compensation circuit and an AMOLED display device. The pixel compensation circuit includes a data signal writing sub-circuit, a high voltage signal writing sub-circuit, a first reference voltage writing sub-circuit, a second reference voltage writing sub-circuit, a voltage maintaining sub-circuit, a driving transistor, a capacitor, and a light emitting device. The data signal writing sub-circuit is connected to a first terminal of the capacitor, the first reference voltage writing sub-circuit is connected to a control electrode of the driving transistor, and the second reference voltage writing sub-circuit is connected to a drain of the driving transistor. The high voltage signal writing sub-circuit is connected to a second terminal of the capacitor, and the voltage maintaining sub-circuit is connected to the first terminal of the capacitor and the control electrode of the driving transistor.
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15.发明授权公开(公告)号：US10095910B2
公开(公告)日：2018-10-09
申请号：US15562570
申请日：2017-02-23
发明人： Xiaoxiang He , Xiaojing Qi
IPC分类号： G06K9/00 , G06F3/044 , G06K19/07 , A61B5/1172
摘要： A fingerprint identification circuit comprises multiple reading sub-circuits, and multiple fingerprint identification sub-circuits each column of fingerprint identification sub-circuits are connected with one reading sub-circuit, each fingerprint identification sub-circuit comprises a writing sub-circuit, a sensing sub-circuit and a output sub-circuit, the writing sub-circuit is connected with a scan signal input terminal; the sensing sub-circuit senses a fingerprint and transmits a sensing signal to the output sub-circuit; the output sub-circuit outputs the sensing signal upon the writing sub-circuit is turned off each fingerprint identification sub-circuit further comprises: a converting and amplifying sub-circuit provided between the sensing sub-circuit and the output sub-circuit, for converting the sensing signal into a current signal, amplifying the current signal and outputting it to the output sub-circuit, the reading sub-circuit is connected with the output sub-circuit for reading the sensing signal and converting the current signal into a voltage signal to output.
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16.发明申请公开(公告)号：US20180166029A1
公开(公告)日：2018-06-14
申请号：US15508640
申请日：2016-10-31
发明人： Xiaoxiang He , Xiaojing Qi
IPC分类号： G09G3/36 , G06F3/041 , G02F1/1362 , G02F1/1343
CPC分类号： G09G3/3611 , G02F1/1343 , G02F1/136286 , G06F3/0416 , G09G3/36 , G09G3/3677 , G09G2310/0264 , G09G2310/0286 , G09G2320/0223 , G11C19/28
摘要： The present application discloses a gate driver on array (GOA) circuit including a first GOA circuit; a second GOA circuit; and a voltage transmitting circuit configured to transmit an output voltage from the first GOA circuit to the second GOA circuit as an input voltage for the second GOA circuit; the output voltage from the first GOA circuit and the input voltage for the second GOA circuit having a substantially the same voltage level. An input port of the voltage transmitting circuit is connected to an output port of the first GOA circuit and configured to receive the output voltage from the first GOA circuit; and an output port of the voltage transmitting circuit is connected to an input port of the second GOA circuit and configured to output a forwarded voltage to the second GOA circuit as the input voltage for the second GOA circuit.
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17.发明申请公开(公告)号：US20180108801A1
公开(公告)日：2018-04-19
申请号：US15526853
申请日：2016-06-22
发明人： Xiaoxiang He , Xiaojing Qi
IPC分类号： H01L31/115 , H01L31/075 , G01T1/24
CPC分类号： H01L31/115 , G01T1/24 , H01L31/0352 , H01L31/075
摘要： The present application provides a PIN photodiode, an X-ray detecting pixel, an X-ray detecting apparatus and a detecting method thereof. The PIN photodiode may comprise a first doped layer, an intrinsic layer disposed over the first doped layer, and a second doped layer disposed over the intrinsic layer. The photodiode further comprises a third doped layer disposed over the second doped layer.
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公开(公告)号：US20210210589A1
公开(公告)日：2021-07-08
申请号：US16075042
申请日：2017-12-08
发明人： Qinghua Zou , Xiaoxiang He , Yu Wang , Gu Yao
摘要： A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes: a base substrate, a thin film transistor, a light-emitting element, a connection electrode and a conducting portion. The TFT is located on the base substrate; the light-emitting element is located on the TFT and includes a first electrode and a second electrode which are spaced apart from each other; the first electrode is electrically connected with the TFT; the connection electrode is located between the base substrate and the light-emitting element and insulated from the TFT; and the conducting portion is configured to connect the second electrode and the connection electrode in parallel.
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