公开(公告)号：US20240062706A1

公开(公告)日：2024-02-22

申请号：US18215554

申请日：2023-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungsoo KIM ,  Jinho KIM ,  Donggun OH ,  Hoseop LEE

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2011 ,  G09G3/2003 ,  G09G2320/0285 ,  G09G2340/16 ,  G09G2320/0233

Abstract: A display apparatus is disclosed. The display apparatus includes a plurality of light emitting devices forming a plurality of sub pixels of a display panel, an LED driving circuit which receives a PWM signal, and drives the plurality of light emitting devices based on the input PWM signal, at least one memory configured to store grayscale information of a previous frame, and at least one processor configured to generate, based on grayscale information of a current frame being input, a PWM signal based on the grayscale information of the current frame and the stored grayscale information of the previous frame, and provide the generated PWM signal to the LED driving circuit.

公开(公告)号：US20220270544A1

公开(公告)日：2022-08-25

申请号：US17677529

申请日：2022-02-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangyoung PARK ,  Jongsu OH ,  Hoseop LEE ,  Tetsuya SHIGETA

IPC: G09G3/32

Abstract: A display module and a display apparatus including the same are provided. The display module includes a module substrate; pixels provided on the module substrate; and a micro-pixel controller configured to supply drive currents to the pixels. The micro-pixel controller includes: a first input pad for receiving a power voltage; a second input pad for receiving a data voltage; pixel circuits configured to output the drive currents to the pixels; a control circuit configured to distribute the power voltage and the data voltage to the pixel circuits; a first ESD protection circuit connected to the first input pad and the control circuit through a first voltage line and configured to transmit the power voltage to the control circuit; and a second ESD protection circuit connected to the second input pad and the control circuit through a second voltage line and configured to transmit the data voltage to the control circuit.

公开(公告)号：US20220172672A1

公开(公告)日：2022-06-02

申请号：US17523436

申请日：2021-11-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangyoung PARK ,  Jongsu OH ,  Hoseop LEE ,  Shigeta TETSUYA

IPC: G09G3/32

Abstract: A display module includes a substrate; a plurality of pixels provided on a surface of the module substrate; a plurality of first micro-pixel controllers provided in spaces between the plurality of pixels, and a plurality of second micro-pixel controllers provided in a periphery area of the upper surface of the module substrate, wherein each of the plurality of first micro-pixel controllers controls two or more pixels of the plurality of pixels, and at least one function performed by the plurality of first micro-pixel controllers is different from at least one function performed by the plurality of second micro-pixel controllers.

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.

公开(公告)号：US20190237449A1

公开(公告)日：2019-08-01

申请号：US16251816

申请日：2019-01-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangmin SHIN ,  Hoseop LEE ,  Sangyoung PARK

IPC: H01L25/16

CPC classification number: H01L25/167 ,  H01L25/0753 ,  H01L27/1248 ,  H01L27/1288 ,  H01L33/62 ,  H01L2933/0066

Abstract: A light emitting diode (LED) panel is provided. The LED panel includes a thin-film transistor (TFT) backplane which includes a plurality of LED bonding areas, and a plurality of LEDs which are respectively bonded to the plurality of LED bonding areas, wherein the plurality of LED bonding areas are formed to have different heights on the TFT backplane according to an LED type bonded thereto, and wherein a relatively thin LED from among the plurality of LEDs is bonded to an LED bonding area of a relatively low height from among the plurality of LED bonding areas.