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公开(公告)号：US20180103231A1
公开(公告)日：2018-04-12
申请号：US15707456
申请日：2017-09-18
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Gwangsoo AHN , Po-yun PARK , Hong-kyu KIM , Jimyoung SEO
CPC classification number: H04N7/0127 , G09G3/20 , G09G3/3648 , G09G3/3677 , G09G3/3696 , G09G5/005 , G09G2320/0219 , G09G2320/0223 , G09G2320/0247 , G09G2330/00 , G09G2340/0435 , G09G2360/02 , G09G2360/06 , G09G2360/12 , G09G2360/18
Abstract: A display device includes a driving controller controlling a data driving circuit and providing a clock signal and a driving voltage in response to an image signal and a control signal received from an external source. The driving controller restores a data enable signal having a display period and a blank period in one frame on the basis of the control signal and sets a voltage level of the driving voltage applied to the gate driving circuit in accordance with a duration of the blank period. During a sequence of frames having a changing frame rate, the driving voltage for each respective frame may be set based on the duration of each respective blank period.
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公开(公告)号：US20200160796A1
公开(公告)日：2020-05-21
申请号：US16582454
申请日：2019-09-25
Applicant: Samsung Display Co., Ltd.
Inventor： Gwangsoo AHN , Kihyun PYUN , Moonshik KANG
IPC: G09G3/34
Abstract: A display device includes a light-source module including a plurality of light-source blocks configured to provide light to a display panel, a plurality of light-source drivers configured to drive the plurality of light-source blocks, a timing controller configured to generate a dimming level signal of a corresponding one of the light-source blocks, and to generate a dimming select signal configured to select a corresponding one of the light-source drivers corresponding to the dimming level signal, a signal converter configured to convert an n-bit dimming select signal into an m-bit switch control signal, “n” and “m” being natural numbers, and n being less than m, and a plurality of switches connected between the timing controller and the plurality of light-source drivers, and configured to provide a plurality of dimming level signals to the plurality of light-source drivers based on a switch control signal.
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公开(公告)号：US20210065648A1
公开(公告)日：2021-03-04
申请号：US16889666
申请日：2020-06-01
Applicant: Samsung Display Co., Ltd.
Inventor： Sungsoo CHOI , Song Yi HAN , Gwangsoo AHN
IPC: G09G3/36
Abstract: A display apparatus includes a display panel, a gate driver, a data driver, and a power voltage generator. The power voltage generator provides a power voltage to at least one of the display panel, the gate driver, and the data driver. The power voltage generator generates a gate-on voltage, a gate-off voltage, and a gate clock signal toggling between the gate-on voltage and the gate-off voltage. The power voltage generator detects a voltage level of the gate clock signal before toggling the gate clock signal and after turning on the display apparatus and changes a supply pattern of the power voltage based on the gate clock signal having a first abnormal voltage level out of a first predetermined normal range.
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公开(公告)号：US20200098330A1
公开(公告)日：2020-03-26
申请号：US16569562
申请日：2019-09-12
Applicant: Samsung Display Co., Ltd.
Inventor： Kihyun PYUN , Keunoh KANG , Moonshik KANG , Gwangsoo AHN , Dae-sik LEE
Abstract: A data driver of a display device includes an equalizer and an equalizer controller. The equalizer controller calculates a lock time during a training enable signal is in an active state while sequentially changing a set signal applied to the equalizer to one option code selected from among a plurality of option codes and provides an option code corresponding to a set lock time among the option codes to the equalizer as the set signal.
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Patent Agency Ranking
公开(公告)号：US20210158744A1
公开(公告)日：2021-05-27
申请号：US16997642
申请日：2020-08-19
Applicant: Samsung Display Co., Ltd.
Inventor： Keunoh KANG , Yanguk NAM , Gwangsoo AHN
Abstract: A display device includes a display panel, a gate driving circuit including a plurality of stages, and a power supply circuit outputting a clock signal, a clock-bar signal, a first discharge voltage, and a second discharge voltage. Each of stages includes a charge part that charges a clock signal having a first high voltage to a charge node, an output part that charges the first high voltage to an output node in response to a first node voltage of the charge node and outputs a second node voltage of the output node to a gate signal, a first discharge part that discharges the second node voltage to a first discharge voltage in response to the clock-bar signal having a second high voltage, and a second discharge part that discharges the first node voltage to a second discharge voltage in response to the clock-bar signal having the second high voltage.
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公开(公告)号：US20210118391A1
公开(公告)日：2021-04-22
申请号：US16857106
申请日：2020-04-23
Applicant: Samsung Display Co., Ltd.
Inventor： Gwangsoo AHN , Dae-Sik LEE , Jong Jae LEE
IPC: G09G3/36
Abstract: A power management circuit of a display device includes a voltage information storage comprising a first and second bank storing first and second voltage information corresponding to first and second voltage levels different from each other, a bank select pin receiving a bank select signal, a voltage information selecting circuit selectively outputting the first voltage information stored in the first bank or the second voltage information stored in the second bank in response to the bank select signal received through the bank select pin, and a DC-DC converter generating panel driving voltages having the first voltage levels based on the first voltage information when the first voltage information is output from the voltage information selecting circuit, and generating the panel driving voltages having the second voltage levels based on the second voltage information when the second voltage information is output from the voltage information selecting circuit.
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公开(公告)号：US20200211441A1
公开(公告)日：2020-07-02
申请号：US16728756
申请日：2019-12-27
Applicant: Samsung Display Co., Ltd.
Inventor： Gwangsoo AHN , Keunoh KANG , Kihyun PYUN , Moonshik KANG
IPC: G09G3/20
Abstract: 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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公开(公告)号：US20190206357A1
公开(公告)日：2019-07-04
申请号：US16233206
申请日：2018-12-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Gwangsoo AHN , Sanghyun LEE , Dongwon PARK , Songyi HAN
Abstract: A display device includes a driving controller sensing a pattern of first image signals from a source external to the driving controller and outputting a compensation selection signal corresponding to the sensed pattern. A voltage generator generates a driving power voltage in response to the compensation selection signal. The voltage generator includes a power converter generating the driving power voltage in response to a power control signal, a comparator comparing the driving power voltage with a reference voltage to output a feedback signal to a first node, and a compensation circuit including a plurality of compensation units. A selected compensation unit is connected to the first node, and a power control circuit outputs the power control signal in response to the feedback signal. The slew rate of the feedback signal may be controlled by a compensation circuit to remove a ripple component from the driving power voltage.
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9.发明申请公开(公告)号：US20170076644A1
公开(公告)日：2017-03-16
申请号：US15139821
申请日：2016-04-27
Applicant: Samsung Display Co., Ltd.
Inventor： Gwangsoo AHN , Po-yun PARK , Hong-kyu KIM , Junghwan CHO
CPC classification number: G06T1/60 , G09G3/3648 , G09G2320/103 , G09G2330/021
Abstract: A display device includes a display panel, and a timing controller which includes a memory unit and an image data conversion unit where when a mode selection signal includes information about a first mode at an (n+1)th frame (n is a positive integer), the memory unit maintains a first frame image data stored before the (n+1)th frame among an image data, when the mode selection signal includes information about a second mode, the memory unit stores second frame image data inputted during the (n+1)th frame among the image data, and the image data conversion unit rearranges pixel data included in the data stored in the memory unit among the first frame image data and the second frame image data, and outputs converted image data.
Abstract translation: 显示装置包括显示面板和定时控制器，其包括存储单元和图像数据转换单元，其中当模式选择信号包括关于第（n + 1）帧的第一模式的信息（n是正整数 ），当模式选择信号包括关于第二模式的信息时，存储单元维持在图像数据中的第（n + 1）帧之前存储的第一帧图像数据，存储单元存储在（ n + 1）帧，并且图像数据转换单元重新排列存储在第一帧图像数据和第二帧图像数据中的存储单元中的数据中包括的像素数据，并输出转换后的图像数据。
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