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1.发明申请Organic Light Emitting Display Device and Method and Driving Circuit for Prolonging Half-life Period Thereof 审中-公开有机发光显示装置及延长半衰期的方法及驱动电路公开(公告)号：US20140210806A1
公开(公告)日：2014-07-31
申请号：US13820506
申请日：2013-01-31
Inventor： Tai-jiun Hwang
IPC: G09G3/32
CPC classification number: G09G3/3225 , G09G2320/029 , G09G2320/043
Abstract: An OLED device includes a power detection unit for detecting a power detection signal when turning on, a test image generation unit for generating a test image signal when a selection unit selects the test image signal to transmit according to the power detection signal and a timing control unit drives an OLED panel according to the test image signal, a current-adjusting unit for adjusting and holding real-time current complying with a predetermined current if the current-adjusting unit detects that the real-time current of the OLED panel is lower than the predetermined current, and a normal image signal input terminal for inputting normal image signal to control the selection unit to transmit the normal image signal, and then the OLED panel displays a normal image according to normal image signal from the timing control unit and the hold real-time current complying with the predetermined current provided by the current-adjusting unit.
Abstract translation: 一种OLED器件，包括：功率检测单元，用于在接通时检测功率检测信号;测试图像生成单元，用于当选择单元根据功率检测信号选择要发送的测试图像信号时产生测试图像信号;以及定时控制 单元根据测试图像信号驱动OLED面板;电流调节单元，用于调节并保持符合预定电流的实时电流，如果电流调节单元检测到OLED面板的实时电流低于 预定电流和用于输入正常图像信号以控制选择单元发送正常图像信号的正常图像信号输入端，然后OLED面板根据来自定时控制单元的正常图像信号和保持状态显示正常图像 符合由电流调节单元提供的预定电流的实时电流。
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公开(公告)号：US09898966B2
公开(公告)日：2018-02-20
申请号：US14897618
申请日：2015-11-02
Inventor： Jing Xu , Tai-jiun Hwang
IPC: G09G3/32 , G09G3/3258
CPC classification number: G09G3/3258 , G09G3/3208 , G09G2310/08 , G09G2320/0626 , G09G2320/103
Abstract: A method for driving a display device includes: dividing static frames displayed by the display device into a first frame and a second frame, which comprises a first sub-frame and a second sub-frame; outputting grey-scale images during the display period of the first frame and the first sub-frame; outputting dark state images during the display period of the second sub-frame, where the length of the display period of the second sub-frame is proportional to that of the static frames. The present invention also proposes a display device using the method. The brightness of the display device can be dynamically adjusted, preventing the device from operating in high brightness for a long period of time, and prolonging its lifespan.
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公开(公告)号：US10223968B2
公开(公告)日：2019-03-05
申请号：US15038467
申请日：2016-03-21
Inventor： Jing Xu , Tai-jiun Hwang
IPC: G09G3/3258 , H01L27/32
Abstract: An OLED data compensation circuit and method, and an OLED display device are disclosed. The OLED data compensation circuit includes: a sensing circuit for detecting a drifting amount of a threshold voltage of thin film transistors (TFTs); a timing controller connected with the sensing circuit for receiving the drifting amount, and outputting voltage control signals and source driving signals, which controlling a voltage of data signals outputted by a source driver; a reference voltage output circuit connected with the timing controller, is configured for outputting a first reference voltage in accordance with the voltage control signals, the voltage of the data signals and the first reference voltage are configured for compensating the drifting amount of the threshold voltage of the driving TFTs to compensate data of the OLED. In this way, the OLED data compensation is not limited only by the source driver, the OLED data compensation may be enhanced.
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公开(公告)号：US10192480B2
公开(公告)日：2019-01-29
申请号：US15536944
申请日：2017-05-27
Inventor： Zhenling Wang , Tai-jiun Hwang
IPC: G09G3/3208
Abstract: A method for controlling brightness of an OLED panel when booting. The method includes steps of: obtaining a brightness to be displayed corresponding to each pixel in a booting process; comparing the brightness to be displayed of each pixel with a preset brightness threshold; if the brightness to be displayed is greater than the brightness threshold, adjusting the brightness to be displayed to be less than or equal to the brightness threshold; using the brightness to be displayed after adjusting to adjust a grayscale value to be displayed of the pixel; using the grayscale value to be displayed to control a corresponding pixel to perform a display; gradually increasing the brightness threshold with time, and returning to the step of obtaining a brightness to be displayed corresponding to each pixel in a booting process. The present invention can reduce the probability of the image sticking and the speed of ageing.
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公开(公告)号：US10403217B2
公开(公告)日：2019-09-03
申请号：US14768694
申请日：2015-07-10
Inventor： Jing Xu , Tai-jiun Hwang
IPC: G09G3/3258 , G09G3/36 , G09G3/34 , G02F1/1362 , G02F1/1368 , G09G3/3233
Abstract: The present invention discloses a display panel and the driving method thereof. It divides the pixel electrodes of the display panel into multiple groups according to the light color allowed passing through. That is, each said pixel electrode allows the light with the same color to pass through; during one frame display, the data driver applies independent Gamma voltage to each said pixel electrode. After the gate driver drives the gate line connected with a group of the pixel electrodes, it drives the gate line connected with next group of the pixel electrodes in sequence, so that it can independently adjust the Gamma voltage applied to the pixels with different colors.
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Patent Agency Ranking
公开(公告)号：US09691322B2
公开(公告)日：2017-06-27
申请号：US14860811
申请日：2015-09-22
Inventor： Tai-jiun Hwang
IPC: G06F3/038 , G09G3/3208 , G09G3/20
CPC classification number: G09G3/3208 , G09G3/20 , G09G2320/043 , G09G2320/0693 , G09G2360/145 , G09G2360/16
Abstract: An OLED display device includes a display screen, a sensor, and a timing controller. The timing controller includes a detection unit, a test image generation unit, a data compensation unit, and image control unit. The detection unit provides a command for generating a test image. The test image generation unit generates a test image according to the command. The data compensation unit receives a decayed signal that corresponds to the test image and is detected by the sensor in order to generate a compensation signal according to the decayed signal. In response to the compensation signal, the image control unit compensates an external image to achieve normal displaying of the external image on the display screen.
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公开(公告)号：US09520080B2
公开(公告)日：2016-12-13
申请号：US14860793
申请日：2015-09-22
Inventor： Tai-jiun Hwang
CPC classification number: G09G3/3208 , G09G3/20 , G09G2320/043 , G09G2320/0693 , G09G2360/145 , G09G2360/16
Abstract: An OLED display device includes a display screen, a sensor, and a timing controller. The timing controller includes a detection unit, a test image generation unit, a data compensation unit, and image control unit. The detection unit provides a command for generating a test image. The test image generation unit generates a test image according to the command. The data compensation unit receives a decayed signal that corresponds to the test image and is detected by the sensor in order to generate a compensation signal according to the decayed signal. In response to the compensation signal, the image control unit compensates an external image to achieve normal displaying of the external image on the display screen.
Abstract translation: OLED显示装置包括显示屏，传感器和定时控制器。 定时控制器包括检测单元，测试图像生成单元，数据补偿单元和图像控制单元。 检测单元提供用于生成测试图像的命令。 测试图像生成单元根据该命令生成测试图像。 数据补偿单元接收对应于测试图像并由传感器检测的衰减信号，以便根据衰减信号产生补偿信号。 响应于补偿信号，图像控制单元补偿外部图像，以在显示屏幕上实现外部图像的正常显示。
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公开(公告)号：US10424247B2
公开(公告)日：2019-09-24
申请号：US15541367
申请日：2017-05-25
Inventor： Zhenling Wang , Tai-jiun Hwang
IPC: G09G3/3258 , G09G3/325 , H01L27/32 , G09G3/3233
Abstract: The disclosure discloses an AMOLED driving circuit and a display device. The driving circuit includes a pixel circuit, a digital driving circuit, and a detection circuit. The pixel circuit includes a data cable and a first switch element. The data cable and the first switch element are coupled. The digital driving circuit is coupled with the data cable, configured to provide a digital voltage signal to the pixel circuit by the data cable. The detection circuit is coupled with the data cable, configured to receive and output the current fed back from the data cable and flowing through the first switch element. The current is configured to compensate a threshold voltage of the first switch element. According to the manner above, embodiments provided by the disclosure can enhance the display effect of the AMOLED.
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公开(公告)号：US10417995B2
公开(公告)日：2019-09-17
申请号：US15031745
申请日：2016-03-16
Inventor： Jing Xu , Tai-jiun Hwang
IPC: G09G5/10 , G09G3/3208
Abstract: A method of reducing the power consumption of the display panels includes: obtaining a brightness of each of pixels of an image to be displayed on the display panel; calculating an average brightness of the image in accordance with the brightness of each of the pixels of the image; obtaining a brightness adjustment coefficient in accordance with the average brightness; decreasing the brightness of each of the pixels of the image in accordance with the brightness adjustment coefficient; and enhancing a contrastness between the pixels of the image in accordance with the brightness adjustment coefficient. In addition, a system of reducing the power consumption of the display panels is also disclosed. In this way, the power consumption of the display panel may be reduced, and the contrastness of the displayed image may be enhanced.
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公开(公告)号：US09858839B2
公开(公告)日：2018-01-02
申请号：US14761400
申请日：2015-05-20
Inventor： Limin Wang , Tai-jiun Hwang
CPC classification number: G09G3/003 , G09G3/3648 , G09G2320/0252 , G09G2320/0285
Abstract: The disclosure is related to a naked eye three-dimensional display panel and an overdriving method. The overdriving method comprises: obtaining target voltages and overdriving voltages of driving electrodes; searching overdriving periods corresponding to the target voltages and the driving voltages in a preset look-up table, wherein mapping relations for different values of the target voltages, the overdriving voltages and the overdriving periods are stored in the preset look-up table; generating overdriving signals according to the obtained target voltages, the obtained driving voltages and the searched overdriving periods; and driving the liquid crystal prism. The disclosure can avoid the issues of insufficient overdriving and excessive overdriving and the naked eye three-dimensional displaying effect using the overdriving technology can be assured.
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