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公开(公告)号：US20240194113A1
公开(公告)日：2024-06-13
申请号：US18245040
申请日：2022-05-23
Inventor： Qibing GU , Guofeng HU , Xiuling LI , Bao FU , Wenchieh HUANG , Lingyun SHI , Ming CHEN
CPC classification number: G09G3/2092 , G09G3/32 , H01L25/167 , H01L27/124 , G09G2300/0408 , G09G2310/08 , G09G2320/064 , G09G2330/021
Abstract: A pixel unit includes N light-emitting devices and a pixel driving chip. The pixel driving chip includes: a data signal terminal used to receive a data signal; a power supply signal terminal used to receive a power supply signal; and N signal channel terminals being in one-to-one correspondence with the N light-emitting devices. A first electrode of a first light-emitting device in the N light-emitting devices is configured to be coupled to the power supply signal terminal, a second electrode of an n-th light-emitting device in the N light-emitting devices is coupled to a first electrode of an (n+1)-th light-emitting device and an n-th signal channel terminal in the N signal channel terminals; N is a positive integer greater than 1, and n is a positive integer greater than or equal to 1 and less than or equal to N.
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公开(公告)号：US20220084460A1
公开(公告)日：2022-03-17
申请号：US17418585
申请日：2020-10-21
Inventor： Lingyun SHI , Wenchieh HUANG , Ming CHEN , Xue DONG , Haiwei SUN , Xiurong WANG , Qibing GU , Guofeng HU
IPC: G09G3/32
Abstract: A pixel driving chip and a driving method therefor, and a display apparatus. The pixel driving chip includes a data input circuit, a time selection circuit, and a current control circuit; the data input circuit is configured to receive display data, and partition the display data to obtain a data partition to which the display data belongs in M data partitions that are obtained on the basis of a display data range; the time selection circuit is configured to determine, according to the data partition to which the display data belongs, an output time length corresponding to the display data, and within the output time length, output the display data to the current control circuit; the current control circuit is configured to determine, according to the display data, a driving current flowing through a light emitting element corresponding to the display data.
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公开(公告)号：US20210407442A1
公开(公告)日：2021-12-30
申请号：US16963302
申请日：2019-09-23
Inventor： Yan YANG , Chinghua HUNG , Rui LIU , Wei SUN , Ming CHEN , Wen Chieh HUANG
IPC: G09G3/36
Abstract: A display driving method includes: controlling a source driver to output a data signal, wherein the data signal comprises a plurality of first active pulse signals, the first active pulse signal in the Nth row is for driving a sub-pixel unit in the Nth row, and a timing difference between a starting point of the first active pulse signal in the Nth row and a starting point of a corresponding gate drive signal is smaller than a timing difference between a starting point of the first active pulse signal in the (N+M)th row and a starting point of a corresponding gate drive signal; and wherein the sub-pixel unit in the Nth row is closer to the source driver than the sub-pixel unit in the (N+M)th row, and N and M are positive integers greater than or equal to 1.
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公开(公告)号：US20210407441A1
公开(公告)日：2021-12-30
申请号：US16772226
申请日：2019-07-31
IPC: G09G3/34
Abstract: Disclosed are a backlight driving method, a display driving method, a drive device and a display device. The backlight driving method includes: receiving a frame of backlight data, wherein the frame of backlight data includes a plurality of first control signals which are respectively applied to the plurality of switching channels and serve as the switching control signals, and a plurality of second control signal groups respectively corresponding to the plurality of first control signals, each of the plurality of second control signal groups includes a plurality of second control signals which are respectively applied to the plurality of output channels and serve as the output control signals, and the plurality of first control signals are modulated non-constant width pulse signals respectively; and driving the backlight unit to emit light by using the plurality of first control signals and the plurality of second control signal groups.
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公开(公告)号：US20210407377A1
公开(公告)日：2021-12-30
申请号：US16754914
申请日：2019-11-14
Inventor： Yankai GAO , Ming CHEN , Lingyun SHI , Xin DUAN , Yuxin BI , Hong LIU , Mingjian YU , Guofeng HU
IPC: G09G3/32
Abstract: Disclosed includes an apparatus, a drive method, a display panel, and a display device. The apparatus may comprise a drive transistor, a light emitting device driven by the drive transistor and a comparator. The comparator may have a first input coupled to a pixel voltage, a second input coupled to a reference voltage, a first control terminal coupled to a first control voltage, a second control terminal coupled to a second control voltage, and an output coupled to a gate of the drive transistor. The comparator may be configured to output the first control voltage to the output during a first time period in which the pixel voltage is not smaller than the reference voltage and output the second control voltage to the output during a second time period in which the pixel voltage is smaller than the reference voltage.
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Patent Agency Ranking
公开(公告)号：US20210333464A1
公开(公告)日：2021-10-28
申请号：US16483606
申请日：2019-01-10
Inventor： Xiuyun CHEN , Fei LIANG , Daekeun YOON , Ming CHEN
IPC: F21V8/00 , G02F1/1335
Abstract: The present disclosure provides a light guide plate, a manufacturing method thereof, a front-lighting and a display device. The light guide plate includes a light guide plate body having a first surface, a second surface, and a light incident surface, the light guide plate body is provided with a plurality of optical microstructures, refractive index of the optical microstructure is greater than that of the light guide plate body; a bottom surface of the optical microstructure is attached to the first surface; and the optical microstructure is configured such that when light passes through and emits from the optical microstructure from the light guide plate body, an angle between an emergence direction of the light and a vertical line relative to the bottom surface of the optical microstructure to be smaller than an incident angle of the light incident on the bottom surface of the optical microstructure.
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公开(公告)号：US20210225304A1
公开(公告)日：2021-07-22
申请号：US16957659
申请日：2019-12-26
Inventor： Jingchao YUAN , Zhaohui MENG , Wenchao HAN , Wei SUN , Xue DONG , Ming CHEN
IPC: G09G3/36
Abstract: The present disclosure provides a pixel structure, a method of driving the same and a display device. The pixel structure includes gate lines, data lines, and a plurality of subpixels arranged in an array form. Subpixels in each row correspond to two gate lines. Each data line corresponds to the subpixels in two adjacent columns, and each data line is arranged between the two adjacent columns of subpixels. Among the subpixels in each row, three adjacent subpixels are in different colors and forms a complete pixel unit. Among the subpixels in each column, three adjacent subpixels are in different colors and forms the complete pixel unit. Among the subpixels in two adjacent columns, the subpixels in two adjacent rows form two complete pixel units each including three subpixels, and two of the three subpixels are shared by the two pixel unit.
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公开(公告)号：US20210166610A1
公开(公告)日：2021-06-03
申请号：US16960574
申请日：2019-09-23
Inventor： Yan YANG , Ching Hua HUNG , Rui LIU , Wei SUN , Ming CHEN , Qibing GU , Xiangyi CHEN
IPC: G09G3/20
Abstract: A source driving circuit includes a buffer amplifier configured to generate a driving signal from an original driving signal. The buffer amplifier includes a first amplifier and a second amplifier. A high-level terminal of the first amplifier is coupled to the first power signal terminal, a low-level terminal is coupled to the second power signal terminal, and an output terminal is configured to output a positive polarity driving signal. A high-level terminal of the second amplifier is coupled to the third power signal terminal, a low-level terminal is coupled to the fourth power signal terminal, and an output terminal is configured to output a negative polarity driving signal. The voltage of the second power signal terminal is less than the voltage of the third power signal terminal.
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公开(公告)号：US20190302394A1
公开(公告)日：2019-10-03
申请号：US16165504
申请日：2018-10-19
Inventor： Zhang ZHOU , Ronghui LIN , Ming CHEN
Abstract: Embodiments of the present disclosure provide a virtual reality apparatus. The virtual reality apparatus includes a display screen and a display screen support configured to support the display screen; a lens assembly and a barrel support configured to hold the lens assembly; and an object distance adjustor coupled between the display screen support and the barrel support respectively, the object distance adjustor being configured to adjust a distance between the display screen support and the barrel support.
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公开(公告)号：US20190181631A1
公开(公告)日：2019-06-13
申请号：US16122320
申请日：2018-09-05
Inventor： Qibing GU , Bo GAO , Wei SUN , Lingyun SHI , Hao ZHANG , Guangquan WANG , Ming CHEN , Xue DONG
IPC: H02H3/20 , G02F1/1335 , H05B33/08
Abstract: A method for driving a backlight module, a driving device and a display apparatus are provided. The backlight module is divided into a plurality of light-emitting areas, each of the light-emitting areas including a plurality of lines of point sources, and the driving device includes a controller and a driving component, the driving component is connected to the controller and is configured to output a time series of voltage signal to the controller, and the controller is connected to all the plurality of lines of point sources in each of the light-emitting areas and is configured to drive the lines of point sources in the light-emitting area to emit light respectively at different periods based on the time series of voltage signal.
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