公开(公告)号：US20240178198A1

公开(公告)日：2024-05-30

申请号：US18115862

申请日：2023-03-01

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

Inventor： Shengchao JI ,  Qiang DONG ,  Xiaoping SUN ,  Lihua WANG

IPC: H01L25/075 ,  G09G3/32 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L25/0753 ,  G09G3/32 ,  H01L33/58 ,  H01L33/62 ,  G09G2310/0267 ,  G09G2310/061

Abstract: A light-emitting panel and a display apparatus are provided in the present disclosure. The light-emitting panel includes light-emitting units, where the light-emitting unit includes a pixel circuit and a light-emitting element which are electrically connected to each other, the light-emitting element includes light-emitting parts, and a plurality of light-emitting parts in one light-emitting element includes first and second light-emitting parts; and a substrate, where a collimation structure is on a side of the first light-emitting part away from the substrate, and an orthographic projection of the collimation structure on the substrate is overlapped with an orthographic projection of the first light-emitting part on the substrate. In the first light-emitting mode, the pixel circuit only controls the first light-emitting part of the light-emitting element to emit light; and in the second light-emitting mode, the pixel circuit at least controls the second light-emitting part of the light-emitting element to emit light.

公开(公告)号：US20210375218A1

公开(公告)日：2021-12-02

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: G09G3/34 ,  G02F1/13357

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：US20210375219A1

公开(公告)日：2021-12-02

申请号：US16944095

申请日：2020-07-30

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

Inventor： Conghua MA ,  Lihua WANG ,  Xiaoping SUN ,  Qiang DONG

IPC: G09G3/34 ,  G09G3/36

Abstract: Provided is a driving method for a display device. The driving method includes: obtaining, by the driving chip, a theoretical brightness value of the light-emitting diode in each of the plurality of light-exiting sub-areas based on an image to be displayed on the display panel; obtaining an actual brightness look-up table, searching the actual brightness look-up table for an actual brightness value closest to the theoretical brightness value, and setting the actual brightness value closest to the theoretical brightness value as a first brightness value; and generating a first pulse signal based on the first brightness value and outputting the first pulse signal to the switch in each of the plurality of light-exiting sub-areas, in such a manner that the switch controls, under driving of the first pulse signal, the light-emitting diode to emit light under an action of a first power supply signal and a second power supply signal.

公开(公告)号：US20220068193A1

公开(公告)日：2022-03-03

申请号：US17103079

申请日：2020-11-24

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

Inventor： Lihua WANG ,  Xiaoping SUN ,  Conghua MA ,  Qiang DONG

IPC: G09G3/32 ,  G09G3/20

Abstract: Light-emitting panel, driving method, fabricating method, and display device are provided. The light-emitting panel includes a plurality of light-emitting units arranged in an array. Each light-emitting unit includes a light-emission control module and at least one light-emitting element. The at least one light-emitting element is electrically connected to the light-emission control module. The light-emitting panel also includes a plurality of data lines arranged in a first direction. Each data line is electrically connected to light-emission control modules of light-emitting units that are arranged in a second direction. The second direction intersects the first direction. The light-emitting panel also includes a plurality of scan lines arranged in the second direction. Each scan line of the plurality of scan lines is electrically connected to light-emission control modules of light-emitting units that are arranged in the first direction. The light-emitting panel also includes a first power line and a second power line.

公开(公告)号：US20220068175A1

公开(公告)日：2022-03-03

申请号：US17103273

申请日：2020-11-24

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

Inventor： Qiang DONG ,  Lihua WANG ,  Xiaoping SUN ,  Conghua MA

IPC: G09G3/00 ,  G09G3/32

Abstract: A light-emitting panel and a display device are provided. The light-emitting panel includes a plurality of light-emitting components arranged in an array, a plurality of signal calculation modules, and a reference-signal generation module. A light-emitting component includes a light-emitting module and a first switch module. The light-emitting module and the first switch module are connected in series between a first power terminal and a second power terminal. A control terminal of the first switch module is connected to a signal calculation module, and the signal calculation module is connected to the reference-signal generation module. The reference-signal generation module is configured to generate a reference signal. The signal calculation module is configured to receive an original data signal and the reference signal, and generate a first data signal. The signal calculation module is further configured to generate a pulse width modulation signal, and to control the light-emitting module to emit light.