公开(公告)号：US11966135B2

公开(公告)日：2024-04-23

申请号：US17272601

申请日：2018-12-14

申请人： Chongqing Advance Display Technology Research ,  Chongqing HKC Optoelectronics Technology Co., Ltd.

发明人： Chuan Wu

IPC分类号： G01R31/00 ,  G02F1/1362 ,  G09G3/00

CPC分类号： G02F1/13629 ,  G02F1/136254 ,  G09G3/00

摘要： A display panel, including a pixel array; multiple rows of gate lines; and multiple columns of data lines; the gate lines and the data lines are perpendicular to each other, respectively, and every two gate lines are correspondingly connected to a row of sub-pixels, and each data line is correspondingly connected to two columns of sub-pixels; each row of pixels is correspondingly connected to two gate lines, and any two gate lines are parallel to each other; and there is a preset length difference between two adjacent rows of gate lines. The wiring of the display panel is convenient to be array detected, and improving the production yield of the display panel.

公开(公告)号：US20210327317A1

公开(公告)日：2021-10-21

申请号：US16463378

申请日：2018-11-16

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： WENQIN ZHAO

IPC分类号： G09G3/00

摘要： This application discloses a display panel testing apparatus and testing method. When a data control circuit receives a first enable signal generated h a switching signal generation circuit, the data control circuit controls a data interface that is output by the data control circuit to be in a high-impedance state.

公开(公告)号：US10891885B2

公开(公告)日：2021-01-12

申请号：US16463372

申请日：2018-11-08

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Chia-Hang Lee

IPC分类号： G09G3/00

摘要： The present application discloses a method and a test machine platform for quickly searching for a common voltage of a display panel. The method includes: measure a flicker value of the display panel; perform a power conversion on the flicker value, and perform a unary quadratic function fitting on the converted flicker value and the corresponding common voltage; and obtain a common voltage value as a common voltage.

公开(公告)号：US10819885B2

公开(公告)日：2020-10-27

申请号：US16451057

申请日：2019-06-25

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  Chongqing HKC Optoelectronics Technology Co., Ltd.

发明人： Wei Chen

IPC分类号： H04N5/202 ,  G09G3/34 ,  H04N9/69

摘要： Disclosed are a gamma value tuning method of a display panel, which comprises the following steps: setting a preset gamma value interval according to a parameters of a display panel to be tested; acquiring a brightness value of a gray scale on the display panel to be tested; calculating a gamma value corresponding to the brightness value of the gray scale; adjusting the gamma value to the first gamma value when the gamma value is smaller than the first gamma value of the preset gamma value interval; adjusting the gamma value to the second gamma, when the second gamma value in the gamma value is larger than the preset gamma value interval.

公开(公告)号：US20220398971A1

公开(公告)日：2022-12-15

申请号：US17894382

申请日：2022-08-24

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Mingliang WANG

IPC分类号： G09G3/20 ,  H02M1/08 ,  H03K17/56

摘要： Disclosed are a gate-on voltage generation circuit, a display panel driving device and a display device. The gate-on voltage generation circuit includes an on/off voltage output terminal, a power management integrated circuit and a voltage switching circuit. The power management integrated circuit includes a detection terminal connected to the on/off voltage output terminal, is configured for detecting a voltage output by the on/off voltage output terminal, and outputting first switch control signal or second switch control signal according to the voltage output from the on/off voltage output terminal. The voltage switching circuit includes a first input terminal for inputting a first voltage value and a second input terminal for inputting a second voltage value larger than the first voltage value. The voltage switching circuit outputs the first voltage value upon receiving the first switch control signal, and outputs the second voltage value upon receiving the second switch control signal.

公开(公告)号：US11137643B2

公开(公告)日：2021-10-05

申请号：US16463377

申请日：2018-11-09

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Xiaogang Hu

IPC分类号： G02F1/13357 ,  F21V8/00

摘要： The present disclosure provides a backlight module and a display panel. The backlight module includes a back plate and an optical component fixed on the back plate. A fool-proof structure is disposed on the optical component. The fool-proof structure includes a bulge. The bulge is disposed on a surface of the optical component. The surface of the optical component is matched and fixed with the back plate. A Positioning structure matched and fixed with the fool-proof structure is disposed on the back plate.

公开(公告)号：US20200154003A1

公开(公告)日：2020-05-14

申请号：US16451057

申请日：2019-06-25

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  Chongqing HKC Optoelectronics Technology Co., Ltd.

发明人： Wei Chen

IPC分类号： H04N5/202 ,  G09G3/34 ,  H04N9/69

摘要： Disclosed are a gamma value tuning method of a display panel, which comprises the following steps: setting a preset gamma value interval according to a parameters of a display panel to be tested; acquiring a brightness value of a gray scale on the display panel to be tested; calculating a gamma value corresponding to the brightness value of the gray scale; adjusting the gamma value to the first gamma value when the gamma value is smaller than the first gamma value of the preset gamma value interval; adjusting the gamma value to the second gamma, when the second gamma value in the gamma value is larger than the preset gamma value interval.

公开(公告)号：US20240297188A1

公开(公告)日：2024-09-05

申请号：US17800337

申请日：2021-12-29

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Hejing ZHANG ,  Zhen LIU

IPC分类号： H01L27/12

CPC分类号： H01L27/1288 ,  H01L27/124

摘要： A method for preparing an array substrate and an array substrate. The method for preparing an array substrate includes: depositing a first metal layer, an insulating layer, an active layer and a doping layer on the substrate; forming a photoresist on doping layer by using a first photomask process, and etching the photoresist to form a gate and a channel; depositing a second metal layer on the substrate; using the second photomask process to form the source-drain metal layer; depositing a passivation layer on the substrate; using the third photomask process to form a pixel electrode layer.

公开(公告)号：US20210345488A1

公开(公告)日：2021-11-04

申请号：US17272655

申请日：2019-05-24

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Xiaoyu Huang

IPC分类号： H05K1/18 ,  G02F1/1362

摘要： This application relates to a printed circuit board, including: a plurality of bonding pad areas configured to be electrically connected to a display; a plurality of dummy pad areas located in the plurality of bonding pad areas and configured to be connected to the ground; and a contact pad area existing between the plurality of dummy pad areas and electrically connected to the bonding pad area. The contact pad area includes a plurality of contact pads configured to be electrically connected to an external input connector. A width of the plurality of contact pads is 0.3 mm, and a distance between the plurality of contact pads is 0.2 mm. A length of the contact pad is the same as a length of a bonding pad in the bonding pad area.

公开(公告)号：US20200331673A1

公开(公告)日：2020-10-22

申请号：US16463376

申请日：2018-11-09

申请人： CHONGQING ADVANCE DISPLAY TECHNOLOGY RESEARCH ,  CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Qiong WU

IPC分类号： B65D51/30 ,  B65D81/113 ,  B65D81/26 ,  B65D85/48

摘要： This application discloses a packing box for a display panel and an accommodating apparatus. The packing box includes: a box body; the display panel including a circuit board and a substrate; and grooves, disposed on the box body, located on both sides of the circuit board, attached to the circuit board and the substrate, and configured to place a desiccant.