公开(公告)号：US11315502B2

公开(公告)日：2022-04-26

申请号：US16933335

申请日：2020-07-20

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Xiongping Li ,  Xiaoping Sun ,  Lihua Wang ,  Conghua Ma ,  Qiang Dong

IPC: G09G3/32 ,  G09G3/34 ,  G02F1/13357 ,  G02F1/1335

Abstract: A backlight drive method, a backlight drive device, a backlight source system, and a display device are provided in the present disclosure. The backlight drive method is used to drive a light-emitting region of a backlight source of the display device. Driving the light-emitting region of the backlight source includes acquiring actual ambient brightness of an ambient where the display device is located. Driving the light-emitting region of the backlight source further includes determining a target backlight brightness range of light exited from the light-emitting region with reference to the actual ambient brightness, where the target backlight brightness range is within an intrinsic brightness range of the light-emitting region. Driving the light-emitting region of the backlight source further includes matching the target backlight brightness range to a plurality of gray levels preset in the light-emitting region.

公开(公告)号：US11138925B1

公开(公告)日：2021-10-05

申请号：US16933077

申请日：2020-07-20

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Lihua Wang ,  Xiaodong Yang ,  Yang Nan

IPC: G09G5/10 ,  G09G3/32 ,  G09G3/325 ,  G09G3/3258

Abstract: A driving circuit includes a first power signal terminal, a second power signal terminal, a first driving transistor, a light-emitting element, a first storage module, a first boost module, a first light-emitting control module, and a data write module. The driving circuit includes a data write stage, a boost stage, and a light-emitting stage in a same frame. At the data write stage, the data write module transmits a first data signal to the first boost node. At the boost stage, the boost signal terminal transmits a boost signal to the first boost module to increase a potential of the first boost node. At the light-emitting stage, the first light-emitting control module is in conduction, and a signal of the first boost node is transmitted to the first node.

公开(公告)号：US10803284B2

公开(公告)日：2020-10-13

申请号：US16130678

申请日：2018-09-13

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Lihua Wang ,  Haochi Yu ,  Qing Zhang ,  Lingxiao Du

IPC: G06F1/16 ,  G06K9/00 ,  G06F3/042 ,  G06F3/041 ,  G02F1/1333 ,  G06F3/0488 ,  G06F21/32

Abstract: Provided are a display panel and a display device. The display panel includes a display assembly, the display assembly includes an array substrate and a plurality of pixel units disposed on the array substrate; and a fingerprint recognition assembly, the fingerprint recognition assembly disposed on one side of the array substrate facing away from the plurality of pixel units, the fingerprint recognition assembly includes a first substrate and at least one fingerprint recognition unit disposed on the first substrate, the fingerprint recognition unit includes a photosensitive region. The array substrate includes a plurality of transparent regions and a plurality of non-transparent regions. Along a direction perpendicular to the array substrate, at least a portion of the plurality of transparent regions in the array substrate is covered by a photosensitive region of any one of the at least one fingerprint recognition units.

公开(公告)号：US10691913B2

公开(公告)日：2020-06-23

申请号：US15703111

申请日：2017-09-13

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Huiping Chai ,  Yang Zeng ,  Kang Yang ,  Hong Ding ,  Lihua Wang ,  Lingxiao Du ,  Liang Xie ,  Qing Zhang

IPC: G06K9/00 ,  G06K9/20 ,  G09G3/3225

Abstract: A display panel and a display apparatus are provided. The display panel comprises an array substrate, a plurality of light emitting units disposed on the array substrate, each having a plurality of sub-light emitting units, and a plurality of fingerprint recognition units, configured to recognize fingerprints based on light reflected by a touch object to the fingerprint recognition units. Each fingerprint recognition unit is configured in coordination with at least one sub-light emitting unit. An orthogonal projection of each fingerprint recognition unit on the array substrate and an orthogonal projection of a corresponding sub-light emitting structure on the array substrate overlap with each other.

公开(公告)号：US10607061B2

公开(公告)日：2020-03-31

申请号：US15864986

申请日：2018-01-08

Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Yang Zeng ,  Qing Zhang ,  Lihua Wang ,  Liang Xie ,  Hong Ding ,  Lingxiao Du ,  Huiping Chai ,  Kang Yang ,  Qijun Yao

IPC: G06K9/00

Abstract: A display device, a fingerprint recognition calibration method for the display device and an electronic apparatus are disclosed. The fingerprint recognition calibration method includes: for any fingerprint recognition unit, during an initial calibration, displaying a first image by the display panel and acquiring a bright screen calibration fingerprint data by the fingerprint recognition unit and not displaying any image by the display panel and acquiring a dark screen calibration fingerprint data by the fingerprint recognition unit; during a fingerprint recognition, displaying the first image by the display panel and acquiring a bright screen fingerprint data by the fingerprint recognition unit; and performing calibration according to a calibration formula to obtain a calibrated fingerprint recognition data by the fingerprint recognition unit.

公开(公告)号：US10381420B2

公开(公告)日：2019-08-13

申请号：US15660604

申请日：2017-07-26

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Conghui Liu ,  Heeyol Lee ,  Lihua Wang ,  Yu Cai ,  Quanpeng Yu ,  Yang Zeng ,  Xingyao Zhou

IPC: H01L27/32 ,  G06F3/041 ,  G06F3/044 ,  H01L51/52

Abstract: A touch display panel is provided. The touch display panel includes: a substrate; a thin-film transistor array, an organic light-emitting unit and a thin-film encapsulation layer which are successively laminated on the substrate; and a touch electrode arranged at a side, which is facing away from the organic light-emitting unit, of the thin-film encapsulation layer. The touch display panel includes a display area and a non-display area surrounding the display area. The non-display area has a first dam surrounding the display area and a second dam surrounding the first dam; the non-display area includes a bonding area and border areas disposed at two sides of the bonding area; and at least in the bonding area, organic material fills a region between the first dam and the second dam and fills a region at a side close to the display area of the first dam.

公开(公告)号：US20180233541A1

公开(公告)日：2018-08-16

申请号：US15678367

申请日：2017-08-16

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yang Zeng ,  Xingyao Zhou ,  Lihua Wang ,  Qijun Yao

IPC: H01L27/32 ,  G06F3/044 ,  G06F3/041 ,  H01L51/52

Abstract: A touch display panel and a touch display apparatus are provided. The touch display panel includes: a substrate; an organic light emitting device; at least one retaining wall, the width of which is 30˜200 μm; a thin film encapsulation layer covering the retaining wall, and a height difference between a first retaining wall and a part of the thin film encapsulation layer located between the first retaining wall and a display area is 0˜3 μm; and electrode wires, at least a part of at least one of the electrode wires is located at least in non-display areas of the substrate, is located at a side, which is facing away from the retaining wall, of the thin film encapsulation layer, and is arranged along an extension direction of the retaining wall, and projections of the electrode wires on the substrate are located within a projection of the retaining wall on the substrate.

公开(公告)号：US20180040675A1

公开(公告)日：2018-02-08

申请号：US15787481

申请日：2017-10-18

Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Yang ZENG ,  Qing Zhang ,  Lihua Wang ,  Liang Xie ,  Lingxiao Du ,  Hong Ding ,  Huiping Chai ,  Kang Yang ,  Qijun Yao

IPC: H01L27/32 ,  H01L51/52 ,  G06F3/041 ,  G06K9/00

CPC classification number: H01L27/323 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0421 ,  G06K9/0002 ,  G06K9/00053 ,  G06K9/0008 ,  H01L27/3234 ,  H01L27/3246 ,  H01L51/5203 ,  H01L51/5237

Abstract: Embodiments of the present disclosure provide a display apparatus, a fingerprint identification method thereof, and an electronic device. The display apparatus includes: an organic light emitting layer and a fingerprint identification array. The organic light emitting layer includes a plurality of organic light emitting configurations. In a fingerprint identification phase, the plurality of organic light emitting configurations are arranged to emit light according to a first light emitting lattice and shift. A distance between any two adjacent organic light emitting configurations in the first light emitting lattice is greater than or equal to a minimum crosstalk-free distance. The minimum crosstalk-free distance is a maximum radius of a covering region formed on the fingerprint identification array by the light emitted from any organic light emitting configuration and then reflected through the first surface of the cover plate.

公开(公告)号：US20180019288A1

公开(公告)日：2018-01-18

申请号：US15717870

申请日：2017-09-27

Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Kang YANG ,  Lihua Wang ,  Qijun Yao ,  Yang Zeng

IPC: H01L27/32 ,  H01L31/105 ,  G06K9/00 ,  G06K9/20 ,  H01L31/153 ,  H01L27/12 ,  G06F3/041

CPC classification number: H01L27/3227 ,  G06F3/0412 ,  G06K9/0004 ,  G06K9/209 ,  G09G3/3225 ,  H01L27/1255 ,  H01L27/323 ,  H01L27/3234 ,  H01L31/105 ,  H01L31/153 ,  H01L51/525

Abstract: Disclosed are a display panel and a display device, the display panel includes: an array substrate, which includes a base substrate and a display drive circuit on the base substrate; a display unit, which is provided on the array substrate and located on one side of the display drive circuit that is facing away from the base substrate; and a fingerprint identification unit, which includes a light-sensing unit, wherein the light-sensing unit is provided on the array substrate and located on one side of the display drive circuit that is facing away from the base substrate, and a vertical projection of the light-sensing unit on a plane including a light-emitting functional layer of the display unit is located between short edges of the light-emitting functional layers of adjacent display units.

公开(公告)号：US09217768B2

公开(公告)日：2015-12-22

申请号：US14090967

申请日：2013-11-26

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd. ,  Tianma Micro-Electronics Co., Ltd.

Inventor： Jialing Li ,  Conghua Ma ,  Lihua Wang ,  Qijun Yao ,  Jun Ma

IPC: G01R31/02 ,  G01R31/28 ,  G02F1/13 ,  G02F1/1333 ,  G06F3/041

CPC classification number: G01R31/2812 ,  G02F1/1309 ,  G02F1/13338 ,  G06F3/0416

Abstract: A method of electrically testing an in-cell touch screen is disclosed. The in-cell touch screen includes a display electrode, a driving line, and a detecting line. The detecting line intersects the driving line. The method includes floating the display electrode and performing at least one of: A) applying a first predetermined voltage to one column of adjacent columns of the driving line or one row of adjacent rows of the driving line, and grounding the other column of the adjacent columns or the other row of the adjacent rows, and B) applying a second predetermined voltage to one column of adjacent columns of the detecting line or one row of adjacent rows of the detecting line, and grounding the other column of the adjacent columns or the other row of the adjacent rows. The method also includes determining whether the driving line or the detecting line is shorted or opened.

Abstract translation: 公开了一种电池测试触摸屏的方法。 单元内触摸屏包括显示电极，驱动线和检测线。 检测线与驱动线相交。 该方法包括使显示电极浮置并且执行以下至少一个：A）对驱动线的相邻列的一列或驱动线的相邻行的一列施加第一预定电压，并将相邻的 列或相邻行的另一行，以及B）将第二预定电压施加到检测线的相邻列的一列或检测线的一行相邻行中，并将相邻列的另一列或 相邻行的其他行。 该方法还包括确定驱动线或检测线是短路还是断开。