-
公开(公告)号：US11663946B2
公开(公告)日：2023-05-30
申请号：US17723820
申请日：2022-04-19
Applicant: Samsung Display Co., Ltd.
Inventor： Jiwoong Kim , Ohjo Kwon , Ikhyun Kim , Hyunggun Ma , Kyungtea Park , Seongjoo Lee , Keumdong Jung , Sanghyun Heo , Donghyun Hwang
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/027 , G09G2310/0286 , G09G2310/0289 , G09G2310/0291
Abstract: A driving chip includes a data channel block including a plurality of data channels, a scan channel block disposed in a first direction from the data channel block and including a plurality of scan channels, a data pad block disposed outside the data channel block and the scan channel block in the first direction and including a plurality of data pads which respectively receive a data signal from the plurality of data channels, and a scan pad block disposed outside the data channel block and the scan channel block in the first direction, disposed outside the data pad block in a second direction crossing the first direction and including a plurality of scan pads which respectively receive a scan signal from the scan channels.
-
2.发明授权公开(公告)号：US12040814B2
公开(公告)日：2024-07-16
申请号：US18118918
申请日：2023-03-08
Inventor： Kyungtea Park , Kun-Woo Park , Jae-Hyun Chung , Ohjo Kwon , Seung-Tak Ryu , Keumdong Jung
Abstract: An analog-to-digital converter includes: a sample/hold circuit, which samples an analog signal, and outputs a first voltage; a digital-to-analog conversion circuit, which converts a digital signal to output a second voltage; an amplifier, which amplifies the first voltage and the second voltage; a noise shaping filter, which integrates a residual voltage corresponding to a difference between the amplified first voltage and the amplified second voltage, and generates a first integration voltage and a second integration voltage; a comparator, which compares a sum of the amplified first voltage, the first integration voltage, and the second integration voltage with the amplified second voltage; and a SAR logic, which outputs the digital signal according to a comparison result of the comparator, and controls the digital-to-analog conversion circuit.
-
公开(公告)号：US11227546B2
公开(公告)日：2022-01-18
申请号：US16593651
申请日：2019-10-04
Applicant: Samsung Display Co., Ltd.
Inventor： Jiwoong Kim , Ohjo Kwon , Jeon Kyoo Kim , Jae Keun Lim
IPC: G09G3/3233 , H01L27/32 , G09G3/3266 , G09G3/3291
Abstract: An organic light emitting display device includes a display part including a plurality of scan lines, a plurality of data lines, a plurality of power source lines, and a plurality of pixels each including an organic light emitting diode, a driving transistor coupled to the organic light emitting diode and to a power source line of the power source lines, and a switching transistor coupled to a scan line of the scan lines and to a data line of the data lines, and a sensing driver configured to sample a sensing current from the power source line while a sensing data voltage is applied to one of the pixels, and to calculate a threshold voltage value of the driving transistor using the sensing current in a sensing mode.
-
公开(公告)号：US11736079B2
公开(公告)日：2023-08-22
申请号：US17567512
申请日：2022-01-03
Inventor： Seok-Tae Koh , Seongjoo Lee , Hyun-Sik Kim , Gyeong-Gu Kang , Seunghwa Shin , Ohjo Kwon , Keumdong Jung
CPC classification number: H03F3/45273 , G09G3/20 , H03F1/0211 , H03F3/45269 , G09G2310/0267 , G09G2310/0275 , G09G2310/0291 , G09G2330/02 , H03F2203/45476
Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.
-
5.发明授权公开(公告)号：US11443672B2
公开(公告)日：2022-09-13
申请号：US17241746
申请日：2021-04-27
Inventor： Young-Soo Hwang , Joon-Chul Goh , Ohjo Kwon , Jeongmin Kim , Bonghyun You , Hyung-Min Lee , Seung Hun Choi
Abstract: A data driver includes a digital to analog converter, a buffer and a buffer controller. The digital to analog converter is configured to receive a data signal having a digital type and to convert the data signal into a data voltage having an analog type. The buffer is configured to buffer the data voltage and to output the data voltage. The buffer controller is configured to determine a parameter of the buffer based on previous line data of the data signal and present line data of the data signal.
-
Patent Agency Ranking
公开(公告)号：US10937366B2
公开(公告)日：2021-03-02
申请号：US16578848
申请日：2019-09-23
Applicant: Samsung Display Co., Ltd.
Inventor： Jiwoong Kim , Ohjo Kwon
IPC: G09G3/325 , G09G3/3291
Abstract: A pixel circuit includes first to fifth transistors, an organic light emitting element, and a capacitor. The second transistor includes a control electrode receiving a first scan signal, an input electrode receiving a data voltage, and an output electrode connected to the control electrode of the first transistor. The third transistor includes a control electrode receiving a second scan signal, an input electrode receiving an initialization voltage, and an output electrode connected to the output electrode of the first transistor. The fourth transistor includes a control electrode receiving an emission signal, an input electrode receiving a first power voltage, and an output electrode connected to the input electrode of the first transistor. The fifth transistor includes a control electrode receiving a third scan signal, an input electrode receiving the data voltage, and an output electrode connected to the input electrode of the first transistor.
-
公开(公告)号：US12142174B2
公开(公告)日：2024-11-12
申请号：US18230539
申请日：2023-08-04
Applicant: Samsung Display Co., LTD.
Inventor： Seongjoo Lee , Joon-Chul Goh , Ohjo Kwon
IPC: G09G3/00 , G09G3/20 , G09G3/3233
Abstract: A display device includes: a display panel including a normal pixel in a display region and a test pixel in a peripheral region, a sensing line coupled to the test pixel, and a sensing circuit configured to sense a mobility characteristic of the test pixel by measuring a current at a source node of the test pixel through the sensing line. The source node of the test pixel is electrically separated from the sensing line in a data writing period of a frame period, and is electrically coupled to the sensing line in an emission period of the frame period.
-
公开(公告)号：US09501974B2
公开(公告)日：2016-11-22
申请号：US14723260
申请日：2015-05-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ohjo Kwon , Choongsun Shin
IPC: G09G3/3233 , G09G3/32
CPC classification number: G09G3/3233 , G09G3/3275 , G09G2310/027 , G09G2310/0289 , G09G2310/0291 , G09G2320/0295 , G09G2320/045 , G09G2330/12
Abstract: An organic light-emitting display apparatus including a display including pixels arranged in an array, a sensor for detecting respective current characteristics of the pixels, a current sensor for receiving a first current from a first pixel of the pixels, for outputting a first voltage corresponding to the first current, for receiving a second current from a second pixel of the pixels, and for outputting a second voltage corresponding to the second current, a level shifter for receiving the first and second voltages and for generating first and second shift voltages respectively corresponding to the first and second voltages, an intermediate voltage of the first and second voltages being equal to a conversion reference voltage, and an analog-to-digital converter for receiving the first and second shift voltages and for outputting a digital value corresponding to a difference between the first and second shift voltages based on the conversion reference voltage.
Abstract translation: 一种有机发光显示装置，包括包括排列成阵列的像素的显示器，用于检测像素的各个电流特性的传感器，用于从像素的第一像素接收第一电流的电流传感器，用于输出相应的第一电压 到第一电流，用于从像素的第二像素接收第二电流，并输出对应于第二电流的第二电压;电平移位器，用于接收第一和第二电压，并用于分别产生第一和第二移位电压 所述第一和第二电压的第一和第二电压的中间电压等于转换参考电压;以及模数转换器，用于接收第一和第二移位电压并输出对应于差的数字值 基于转换参考电压在第一和第二移位电压之间。
-
公开(公告)号：US20160203760A1
公开(公告)日：2016-07-14
申请号：US14723260
申请日：2015-05-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ohjo Kwon , Choongsun Shin
IPC: G09G3/32
CPC classification number: G09G3/3233 , G09G3/3275 , G09G2310/027 , G09G2310/0289 , G09G2310/0291 , G09G2320/0295 , G09G2320/045 , G09G2330/12
Abstract: An organic light-emitting display apparatus including a display including pixels arranged in an array, a sensor for detecting respective current characteristics of the pixels, a current sensor for receiving a first current from a first pixel of the pixels, for outputting a first voltage corresponding to the first current, for receiving a second current from a second pixel of the pixels, and for outputting a second voltage corresponding to the second current, a level shifter for receiving the first and second voltages and for generating first and second shift voltages respectively corresponding to the first and second voltages, an intermediate voltage of the first and second voltages being equal to a conversion reference voltage, and an analog-to-digital converter for receiving the first and second shift voltages and for outputting a digital value corresponding to a difference between the first and second shift voltages based on the conversion reference voltage.
Abstract translation: 一种有机发光显示装置，包括包括排列成阵列的像素的显示器，用于检测像素的各个电流特性的传感器，用于从像素的第一像素接收第一电流的电流传感器，用于输出相应的第一电压 到第一电流，用于从像素的第二像素接收第二电流，并输出对应于第二电流的第二电压;电平移位器，用于接收第一和第二电压，并用于分别产生第一和第二移位电压 所述第一和第二电压的第一和第二电压的中间电压等于转换参考电压;以及模数转换器，用于接收第一和第二移位电压并输出对应于差的数字值 基于转换参考电压在第一和第二移位电压之间。
-
公开(公告)号：US20220311397A1
公开(公告)日：2022-09-29
申请号：US17567512
申请日：2022-01-03
Inventor： Seok-Tae Koh , Seongjoo Lee , Hyun-Sik Kim , Gyeong-Gu Kang , Seunghwa Shin , Ohjo Kwon , Keumdong Jung
Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.016 seconds)
