公开(公告)号：US20210158748A1

公开(公告)日：2021-05-27

申请号：US17103484

申请日：2020-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daisuke KAWAE ,  Junichi YAMASHITA ,  Takashige FUJIMORI

IPC: G09G3/32

Abstract: A display apparatus includes a light emitting element; and a pixel circuit configured to drive the light emitting element. The pixel circuit may include a first capacitor configured to output a first voltage corresponding to an image signal; a first transistor having a control terminal connected to the first capacitor and to which the first voltage is applied, a first terminal to which a second voltage corresponding to a slope signal that changes over time is applied, and a second terminal configured to output an output signal based on a comparison between the first voltage and the second voltage; and a driving circuit configured to drive the light emitting element based on the output signal of the second terminal.

公开(公告)号：US20220327995A1

公开(公告)日：2022-10-13

申请号：US17848549

申请日：2022-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Jinho KIM ,  Yong-Sang KIM ,  Daisuke KAWAE ,  Junichi YAMASHITA ,  Takashige FUJIMORI ,  Donggun OH ,  Jongsu OH ,  Tetsuya SHIGETA

IPC: G09G3/32

Abstract: A display module including a display panel comprising a plurality of pixels each comprising a plurality of sub pixels, the pixels being disposed on a plurality of row lines of the display panel and a driver. The driver being configured to apply a pulse width modulation (PWM) data voltage to the sub pixels in a sequential order of the row lines; and drive the display panel such that the sub pixels included in a plurality of consecutive row lines among the plurality of row lines emit light, in the sequential order of the row lines, for a time corresponding to the applied PWM data voltage.

公开(公告)号：US20210264848A1

公开(公告)日：2021-08-26

申请号：US17175113

申请日：2021-02-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junichi YAMASHITA ,  Daisuke KAWAE ,  Takashige FUJIMORI

IPC: G09G3/32

Abstract: A display apparatus includes a light emitting element group including a plurality of light emitting elements, a pixel circuit configured to supply a reference voltage to the plurality of light emitting elements to allow a light emitting element, which emits light, in the light emitting element group, to be changed according to a plurality of sub-fields forming one field.

公开(公告)号：US20210358394A1

公开(公告)日：2021-11-18

申请号：US17278440

申请日：2019-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junichi YAMASHITA ,  Daisuke KAWAE ,  Shinji YAMASHITA

IPC: G09G3/32

Abstract: A display device includes a plurality of pixel circuits each including: a light-emitting element; a pulse width modulation (PWM) controller configured to control whether to supply current to the light-emitting element; and a constant current controller configured to supply the current to the light-emitting element, wherein the constant current controller, the PWM controller, and the light-emitting element are connected in series between a first power line and a second power line to supply the current to the light-emitting element; and a transistor configured to turn off the light-emitting element during a constant current setting period is provided between the first power line and the constant current controller.

公开(公告)号：US20220301498A1

公开(公告)日：2022-09-22

申请号：US17831972

申请日：2022-06-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangyoung PARK ,  Daisuke KAWAE ,  Junichi YAMASHITA ,  Jongsu OH ,  Hoseop LEE ,  Tetsuya SHIGETA

IPC: G09G3/32

Abstract: A display module is provided. The display module includes a module substrate; a plurality of pixels provided on an upper surface of the module substrate; and a plurality of micro pixel controllers, each of the plurality of micro pixel controllers being configured to control at least two pixels among the plurality of pixels and being provided in a space between the at least two pixels on the upper surface of the module substrate, wherein at least one of the plurality of micro pixel controllers includes a slope waveform generator configured to generate a slope waveform used to control a brightness of each of the at least two pixels.

公开(公告)号：US20220172674A1

公开(公告)日：2022-06-02

申请号：US17675231

申请日：2022-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jongsu OH ,  Daisuke KAWAE ,  Junichi YAMASHITA ,  Sangyoung PARK ,  Hoseop LEE ,  Tetsuya SHIGETA

IPC: G09G3/32 ,  G09F9/33 ,  G09F9/302 ,  H01L33/62 ,  H01L27/15

Abstract: A display module includes a plurality of pixels; a substrate; a plurality of inorganic LEDs arranged on the substrate, each of the plurality of pixels including two or more inorganic LEDs among the plurality of inorganic LEDs; and a plurality of micro-pixel controllers two-dimensionally arranged in a first direction and a second direction on the substrate, each of the plurality of micro-pixel controllers being configured to control two or more pixels among the plurality of pixels. Each micro-pixel controller of the plurality of micro-pixel controllers is electrically connected to micro-pixel controllers adjacent thereto, and is configured to convert a voltage input from one of the micro-pixel controllers that is electrically connected thereto in a direction opposite to the first direction into a target voltage and supply the target voltage to another micro-pixel controller of the micro-pixel controllers that is electrically connected thereto in the first direction.