公开(公告)号：US10008144B2

公开(公告)日：2018-06-26

申请号：US15162178

申请日：2016-05-23

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Yun-Mi Kim ,  Ki-Hyun Pyun

IPC分类号： G09G3/20 ,  G09G3/36 ,  G09G5/02 ,  G09G5/06 ,  G06K9/62

CPC分类号： G09G3/2018 ,  G09G3/2007 ,  G09G3/2077 ,  G09G3/2092 ,  G09G3/3611 ,  G09G2310/0248 ,  G09G2310/08 ,  G09G2320/0242

摘要： A display apparatus includes a display panel, a memory, a bit-data convertor, a switch, and a gate driver. The display panel includes pixels. Each pixel is connected to one of the data lines and one of the gate lines. The memory stores a plurality of image data corresponding to a frame period. The bit-data convertor determines a plurality of bit data. Each of the bit data corresponds to a degree of change between adjacent image data among the plurality of image data, obtains a sum of the bit data, and outputs the sum of the bit data as a total count bit data value. The switch outputs a first pulse control signal corresponding to the total count bit data value. The gate driver generates a gate signal based on the first pulse control signal, and to output the gate signal to one of the gate lines.

公开(公告)号：US09779675B2

公开(公告)日：2017-10-03

申请号：US14563200

申请日：2014-12-08

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Min-Young Park ,  Jeong-Doo Lee ,  Sung-Jun Kim ,  Yun-Mi Kim ,  Kyung-Hwa Lim ,  Ki-Hyun Pyun

IPC分类号： G09G3/36

CPC分类号： G09G3/3614 ,  G09G3/3611 ,  G09G2310/08 ,  G09G2320/0233

摘要： A display device includes a display panel, a variable gate clock generator and a gate driver. The display panel includes a plurality of pixels coupled to a plurality of data lines and a plurality of gate lines, respectively. The variable gate clock generator generates a first variable gate clock signal and a second variable gate clock signal having respective duty ratios that are varied depending on a brightness of a frame image. The gate driver generates a plurality of gate driving signals for driving the gate lines in response to the first and second variable gate clock signals.

公开(公告)号：US09978326B2

公开(公告)日：2018-05-22

申请号：US14728383

申请日：2015-06-02

申请人： Samsung Display Co., Ltd.

发明人： Yun-Mi Kim ,  Ki-Hyun Pyun ,  Sung-Jun Kim ,  Ju-Hyun Kim ,  Yong-Jae Lee ,  Jeong-Doo Lee ,  Kyung-Hwa Lim

IPC分类号： G09G3/36

CPC分类号： G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0693

摘要： A liquid crystal display device, including a display panel including data lines and gate lines intersecting the data lines, a gate driver configured to sequentially apply a scan signal to the gate lines, a data driver configured to apply data voltages corresponding to each gate lines to the data lines, a timing controller configured to control the gate driver and the data driver, a power source supply circuit configured to supply a positive power source and a negative power source, a common voltage feedback circuit configured to receive the positive power source and the negative power source from the power source supply circuit, receive a reference voltage and a common voltage from the display panel, and output an amplified feedback signal corresponding to a voltage level difference between the reference voltage and the common voltage.