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    LIQUID CRYSTAL DISPLAY DEVICE
    1.
    发明申请
    LIQUID CRYSTAL DISPLAY DEVICE 有权

    公开(公告)号：US20210080767A1

    公开(公告)日：2021-03-18

    申请号：US16308477

    申请日：2018-09-13

    申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.

    发明人： Bingjei Liao ,  Yuhua Chang ,  Anle Hu

    IPC分类号： G02F1/1347 ,  G02F1/1368 ,  G02F1/1335 ,  G09G3/36 ,  G09G3/34

    摘要： The present invention teaches a LCD device, including a backlight module, a first LCD panel disposed on top of the backlight module, and a second LCD panel disposed on top of the first LCD panel. The first LCD panel divides the light from the backlight module into n×m partitions, where n×m is the first LCD panel. Therefore the number of backlight partitions is significantly increased. The first LCD panel does not have a CF substrate, and therefore the first LCD panel functions like a monoc screen, controlling the transmittance of each partition and providing to the backlight partition by partition. The backlight, after being adjusted partition-wise by the first LCD panel, is then incident into the second LCD panel for color display, thereby achieving better contrast, improved display effect, and enhanced display quality.

    Image edge processing method, electronic device, and computer readable storage medium
    2.
    发明授权
    Image edge processing method, electronic device, and computer readable storage medium 有权

    公开(公告)号：US11113795B2

    公开(公告)日：2021-09-07

    申请号：US16080629

    申请日：2018-05-23

    申请人： SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

    发明人： Jiang Zhu ,  Bin Zhao ,  Yuhua Chang ,  Yu Wu

    IPC分类号： G06T5/00 ,  G06T7/143 ,  G06T7/13 ,  G06T5/20

    摘要： An image edge processing method is disclosed. The method includes steps of: extracting a brightness component from an input image; calculating an edge probability value mp of each pixel in the image according to the extracted brightness component; calculating an enhancement coefficient A for each pixel based on the edge probability value mp; performing a noise detection according to the brightness component, and determining if each pixel in the image is a noise point; when the pixel is not a noise point, performing a logarithmic processing to the pixel in order to obtain a data w; enhancing an edge of the image according to the λ, the w and the brightness component in order to obtain an enhanced brightness component data; and after performing a brightness component synthesis according to the enhanced brightness component data, outputting an enhanced image. An electronic device and computer readable storage medium are also disclosed.

    Temperature sensing system integrated in liquid crystal display panel and liquid crystal display panel
    4.
    发明授权
    Temperature sensing system integrated in liquid crystal display panel and liquid crystal display panel 有权

    公开(公告)号：US10132690B2

    公开(公告)日：2018-11-20

    申请号：US15039412

    申请日：2016-04-13

    申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.

    发明人： Yuyeh Chen ,  Yuhua Chang ,  Mingwei Chen

    IPC分类号： G01K1/00 ,  G01K7/00 ,  G01K1/14 ,  G01K7/04 ,  G02F1/133 ,  G09G3/36 ,  G02F1/13

    摘要： The present invention provides a temperature sensing system integrated in a liquid crystal display panel and a liquid crystal display panel. The temperature sensing system includes a sensing unit (11), located in a display region (1) of the liquid crystal display panel, and a calculation and control unit (12), located outside the display region (1); the sensing unit (11) includes a first metal conductor (A) and a second metal conductor (B) located in the display region (1), and as a short circuit point exists between the two, a voltage difference generates between the two, and the voltage difference is converted into a digital signal with an analog to digital converter (122) after it is amplified by an operational amplifier (121), and finally, the micro controller unit (123) processes the digital signal to obtain a temperature in the liquid crystal display panel and to determine whether the protect temperature is reached.

    DRIVING CIRCUIT AND DRIVING METHOD OF DISPLAY
    5.
    发明申请
    DRIVING CIRCUIT AND DRIVING METHOD OF DISPLAY 审中-公开
    驱动电路和显示器的驱动方法

    公开(公告)号：US20150161934A1

    公开(公告)日：2015-06-11

    申请号：US14233752

    申请日：2013-12-11

    申请人： Shenzhen China Star Optoelectronics Technology Co. Ltd.

    发明人： Yu-Yeh Chen ,  Yuhua Chang ,  Jhen-Wei He ,  Ming-Wei Chen

    IPC分类号： G09G3/20 ,  G09G3/32

    CPC分类号： G09G3/2025 ,  G09G3/3233 ,  G09G2300/0842

    摘要： Inventive driving circuit and driving method of a display are provided. The driving method includes equally dividing a frame time into N divided portions, where N≧1 and N is an integer; setting two switch signals in each of the divided portions of time; and turning the OLED (6) on when a first switch signal switches the first switch tube (1) on and the second switch tube (2) receives the first digital signal, in each of the divided portions of time, and turning the OLED (6) off when the second switch signal switches the first switch tube (1) on and the second switch tube (2) receives the second digital signal. By equally dividing a frame time, a digital signal (0/1) may replace for the conventional analog signal to turn on/off an OLED based on time division. Precise control of frame brightness can be achieved for consistent OLED illuminance.

    摘要翻译： 提供本发明的驱动电路和显示器的驱动方法。 驱动方法包括将帧时间等分成N个分割部分，其中N≥1且N是整数; 在每个分割的时间段中设置两个开关信号; 并且当第一开关信号在第一开关管（1）接通并且第二开关管（2）接收第一数字信号时，在每个分割的时间段内转动OLED（6），并转动OLED 6）当第二开关信号切换第一开关管（1）并且第二开关管（2）接收到第二数字信号时，断开。 通过等分帧时间，数字信号（0/1）可以代替传统的模拟信号，以基于时间分割来打开/关闭OLED。 可以实现对于一致的OLED照度的帧亮度的精确控制。