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公开(公告)号：US11869419B2
公开(公告)日：2024-01-09
申请号：US18062863
申请日：2022-12-07
发明人： Kihyun Pyun , Jang-Hoon Kwak
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/08 , G09G2320/0233
摘要： A display device includes a first source printed circuit board connected to a control printed circuit board through a cable, a second source printed circuit board connected to the first source printed circuit board through a flexible printed circuit board, a display panel connected to the first source printed circuit board and the second source printed circuit board through a connection part, and a timing controller determining predicted power currents based on input image data, determining a target gain based on the predicted power currents and a maximum allowable power current of the flexible printed circuit board, and correcting the input image data corresponding to a gain reduction region of the display panel based on the target gain. Accordingly, the display device may reduce a power current flowing through the flexible printed circuit board and may include a flexible printed circuit board including a small number of pins.
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62.发明授权公开(公告)号：US11854499B2
公开(公告)日：2023-12-26
申请号：US18088715
申请日：2022-12-26
发明人： Kihyun Pyun , Kyoungho Lim
IPC分类号： G09G3/3291 , G09G3/32 , G09G3/36
CPC分类号： G09G3/3291 , G09G3/32 , G09G3/3688 , G09G2310/027 , G09G2320/0276 , G09G2320/0673 , G09G2360/16
摘要： A display device is disclosed that includes a display panel, a controller, and a data driver. The controller is configured to determine first luminances with respect to a reference grayscale in a second frame when the reference grayscale is displayed in the second frame after the reference grayscale is displayed in a first frame. The controller is configured to determine second luminances with respect to the reference grayscale in the second frame when the reference grayscale is displayed in the second frame after a minimum grayscale is displayed in the first frame. The controller is further configured to temporally and spatially arrange first data corresponding to the reference grayscale and second data corresponding to the minimum grayscale to generate a data signal. And, the controller is configured to drive the display panel with a digital driving method in a first grayscale section, and drive the display panel with an analog driving method in a second grayscale section. The data driver is configured to generate a data voltage based on the data signal.
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公开(公告)号：US11847981B2
公开(公告)日：2023-12-19
申请号：US18149443
申请日：2023-01-03
发明人： Kihyun Pyun , Moonshik Kang , Dae-Sik Lee , Jun Pyo Lee , Min-Soo Choi , Songyi Han
CPC分类号： G09G3/3406 , H05B45/14 , G09G2330/023 , G09G2360/145
摘要： A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
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公开(公告)号：US20230368724A1
公开(公告)日：2023-11-16
申请号：US18083296
申请日：2022-12-16
发明人： Kihyun Pyun , Jang-Mi Lee
IPC分类号： G09G3/20
CPC分类号： G09G3/2096 , G09G2310/08 , G09G2330/028 , G09G2360/12
摘要： A display device is disclosed that includes a display panel, a data driver, a timing controller, a memory device, and a power voltage generator. The display panel includes pixels. The data driver is configured to apply data voltages to the pixels. The timing controller is configured to control the data driver, to generate a test strobe signal by shifting a phase of a strobe signal, to perform a test write operation and a test read operation with the memory device based on the test strobe signal, and to increase a power voltage when an error bit occurs in the test write operation and the test read operation. The memory device is configured to sample memory data received from the timing controller using the strobe signal and to store sampled memory data. The power voltage generator is configured to apply the power voltage to the memory device.
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公开(公告)号：US20230110937A1
公开(公告)日：2023-04-13
申请号：US18059721
申请日：2022-11-29
发明人： Kihyun Pyun , Siduk Sung
IPC分类号： G09G3/00 , G09G3/3283
摘要： An organic light-emitting diode (OLED) display device includes a display panel including a plurality of pixels, the plurality of pixels being grouped into a plurality of pixel blocks, a nonvolatile memory configured to store previous accumulated block degradation information for the plurality of pixel blocks up to a previous driving period, a controller configured to calculate current block degradation information for the plurality of pixel blocks in a current driving period, to calculate current accumulated block degradation information for the plurality of pixel blocks up to the current driving period by adding the current block degradation information to the previous accumulated block degradation information in response to a power control signal indicating a power-off, and to determine whether a sensing operation for each of the plurality of pixel blocks is to be performed by comparing the current accumulated block degradation information for each of the plurality of pixel blocks with a sensing reference degradation amount, and a sensing circuit configured to selectively perform the sensing operation for each of the plurality of pixel blocks.
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66.发明授权公开(公告)号：US11605338B2
公开(公告)日：2023-03-14
申请号：US17233260
申请日：2021-04-16
发明人： Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC分类号： G09G3/3208
摘要： A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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公开(公告)号：US11605331B2
公开(公告)日：2023-03-14
申请号：US17556163
申请日：2021-12-20
发明人： Kihyun Pyun , Sung-Mo Yang
IPC分类号： G09G3/20
摘要： A display device may include a display panel which displays an image based on a data voltage, a driving controller including a net power control setter which determines a scale factor for adjusting a gray scale of (N+1)th frame data based on a load of Nth frame data and a net power control reference value, where the driving controller generates a data signal based on input image data, and N is a natural number greater than or equal to 2, a data driver which converts the data signal into the data voltage and outputs the data voltage to the display panel, and a power supply voltage generator which senses a power supply current applied to the display panel in an Nth frame and generates a power supply voltage based on a current level of the power supply current.
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公开(公告)号：US11551593B2
公开(公告)日：2023-01-10
申请号：US17211370
申请日：2021-03-24
发明人： Kihyun Pyun , Siduk Sung
IPC分类号： G09G3/00 , G09G3/3283
摘要： An organic light-emitting diode (OLED) display device includes a display panel including a plurality of pixels, the plurality of pixels being grouped into a plurality of pixel blocks, a nonvolatile memory configured to store previous accumulated block degradation information for the plurality of pixel blocks up to a previous driving period, a controller configured to calculate current block degradation information for the plurality of pixel blocks in a current driving period, to calculate current accumulated block degradation information for the plurality of pixel blocks up to the current driving period by adding the current block degradation information to the previous accumulated block degradation information in response to a power control signal indicating a power-off, and to determine whether a sensing operation for each of the plurality of pixel blocks is to be performed by comparing the current accumulated block degradation information for each of the plurality of pixel blocks with a sensing reference degradation amount, and a sensing circuit configured to selectively perform the sensing operation for each of the plurality of pixel blocks.
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公开(公告)号：US11545063B2
公开(公告)日：2023-01-03
申请号：US17388808
申请日：2021-07-29
发明人： Kihyun Pyun , Heesook Park
摘要： A data transmission circuit includes a transmitter configured to transmit a data signal, a receiver configured to receive the data signal, a first transmission line connected between the transmitter and the receiver, and a second transmission line connected between the transmitter and the receiver. The data signal includes a line start signal, and a configuration signal. The data signal further includes at least one of an inverted line start signal which is an inverted version of the line start signal or an inverted configuration signal which is an inverted version of the configuration signal.
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公开(公告)号：US11482152B2
公开(公告)日：2022-10-25
申请号：US16728756
申请日：2019-12-27
发明人： Gwangsoo Ahn , Keunoh Kang , Kihyun Pyun , Moonshik Kang
IPC分类号： G09G3/20
摘要： A display system includes a source device and a sink device. The source device generates red-color display data, green-color display data, and blue-color display data and transmits first packet data including the red-color display data and a red-color display reference gamma-set, second packet data including the green-color display data and a green-color display reference gamma-set, and third packet data including the blue-color display data and a blue-color display reference gamma-set. The sink device converts the red-color display data, the green-color display data, and the blue-color display data into red-color display data-voltages, green-color display data-voltages, and blue-color display data-voltages and displays an image using the red-color display data-voltages, the green-color display data-voltages, and the blue-color display data-voltages. The sink device generates red-color display gamma-voltages, green-color display gamma-voltages, and blue-color display gamma-voltages based on the red-color display reference gamma-set, the green-color display reference gamma-set, and the blue-color display reference gamma-set, respectively.
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