公开(公告)号：US20190371231A1

公开(公告)日：2019-12-05

申请号：US16263901

申请日：2019-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinho KIM ,  Kisun KANG ,  Sangmin SHIN ,  Hoseop LEE ,  Youngki JUNG

IPC: G09G3/32 ,  G09G3/20 ,  H01L27/15

Abstract: A display panel is provided. The display panel includes a glass, an inorganic light emitting device included in a sub pixel of the display panel, and a driving circuit disposed between the glass and the inorganic light emitting device, and configured to provide a driving current of which an amplitude and a pulse width are controlled together to the inorganic light emitting device. The inorganic light emitting device is mounted on the driving circuit and electrically connected to the driving circuit.

公开(公告)号：US20200111404A1

公开(公告)日：2020-04-09

申请号：US16263271

申请日：2019-01-31

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

Inventor： Jinho KIM ,  Yongsang KIM ,  Sangmin SHIN ,  Kisun KANG ,  Jongsu OH

IPC: G09G3/20 ,  G09G3/32 ,  H01L27/15

Abstract: A display panel is provided. In the display panel, a plurality of pixels respectively including a plurality of sub pixels are arranged in a matrix form on a glass. Each of the plurality of sub pixels includes a driving circuit disposed on the glass and configured to receive a pulse amplitude modulation (PAM) data voltage and a pulse width modulation (PWM) data voltage, and an inorganic light emitting device mounted on the driving circuit and configured to be electrically connected to the driving circuit, and to emit a light based on a driving current provided from the driving circuit. The PAM data voltage is applied at once to the plurality of pixels included in the display panel. The driving circuit is configured to control a grayscale of a light emitted by the inorganic light emitting device by controlling a pulse width of a driving current having an amplitude corresponding to the applied PAM data voltage based on the applied PWM data voltage.

公开(公告)号：US20230122312A1

公开(公告)日：2023-04-20

申请号：US18084118

申请日：2022-12-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngki JUNG ,  Sangmin SHIN ,  Kisun KANG ,  Donghwan KIM ,  Chulgyu JUNG

IPC: H01L27/12 ,  G09G3/32 ,  H01L25/16

Abstract: A light-emitting diode (LED) module includes: a glass substrate; a signal wiring layer provided on the glass substrate and including a plurality of electrodes connected by a passive matrix circuit; and a plurality of LEDs connected to the plurality of electrodes and configured to emit light toward the glass substrate, wherein the signal wiring layer further includes a boundary region that divides the LED module into a plurality of unit regions.

公开(公告)号：US20190371232A1

公开(公告)日：2019-12-05

申请号：US16263963

申请日：2019-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinho KIM ,  Kisun KANG ,  Sangmin SHIN ,  Hoseop LEE ,  Youngki JUNG

IPC: G09G3/32 ,  G09G3/20 ,  H01L27/15

Abstract: A display panel includes a driving circuit layer disposed on a glass and including a first driving circuit and a second driving circuit, and an inorganic light emitting device mounted on the driving circuit layer to be electrically connected to the first driving circuit, and including a sub pixel of the display panel. wherein the first driving circuit includes a pulse amplitude modulation driving circuit for controlling an amplitude of a driving current provided to the inorganic light emitting device, and a pulse width modulation driving circuit for controlling a light emitting duration of the inorganic light emitting device. The second driving circuit is arranged in an area excluding an area in which the first driving circuit is arranged in the driving circuit layer, and to generate a control signal for driving the first driving circuit and provide the generated control signal to the first driving circuit.