公开(公告)号：US11848330B2

公开(公告)日：2023-12-19

申请号：US16875770

申请日：2020-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： June Hwan Kim ,  Tae Young Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang ,  Ki Ju Im

IPC: H01L27/12 ,  H01L29/786 ,  H10K59/121

CPC classification number: H01L27/1237 ,  H01L27/1218 ,  H01L27/1255 ,  H01L29/7869 ,  H01L29/78675 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display device is provided. The display device comprises a substrate, a first buffer layer on the substrate, a first semiconductor layer on the first buffer layer and including a first active layer, a first gate insulating layer on the first semiconductor layer and the first buffer layer and covering the first active layer, a first conductive layer on the first gate insulating layer and including a first gate electrode, a second conductive layer on the first conductive layer and including a first source/drain electrode, a first interlayer insulating layer on the first conductive layer, a second semiconductor layer on the first interlayer insulating layer and including a second active layer, a second gate insulating layer on the second semiconductor layer and covering the second active layer, and a third conductive layer on the second gate insulating layer and including a second gate electrode and a second source/drain electrode, wherein the first gate insulating layer and the second gate insulating layer include different insulating materials.

公开(公告)号：US11456349B2

公开(公告)日：2022-09-27

申请号：US16928322

申请日：2020-07-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Pyo Hong ,  So Ra Bak ,  Jong Woo Park ,  Su In Jin

IPC: H01L27/32 ,  H01L23/00 ,  H01L23/498 ,  H01L21/66

Abstract: A display device includes a display substrate including a display area and a pad area located around the display area, a plurality of light emitting elements located on the display area of the display substrate, a plurality of pads located on the pad area of the display substrate and connected to the plurality of light emitting elements, a flexible film attached to the display substrate, a plurality of lead wires disposed on the flexible film, and an anisotropic conductive film disposed between the display substrate and the flexible film. The anisotropic conductive film is disposed between each of the plurality of pads and a corresponding one of the plurality of lead wires overlapping each other to form an electrical connection therebetween. The flexible film has a light transmittance of 60% or more with respect to a visible light wavelength range.

公开(公告)号：US11308874B2

公开(公告)日：2022-04-19

申请号：US16358700

申请日：2019-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Young Kim ,  Jong Woo Park ,  Hyo Jung Kim ,  Ki Ju Im ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3266 ,  H01L29/78 ,  G09G3/3291 ,  H01L27/32

Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.

公开(公告)号：US11250775B2

公开(公告)日：2022-02-15

申请号：US16374675

申请日：2019-04-03

Applicant: Samsung Display Co., Ltd.

Inventor： Ju Hee Lee ,  Dae Youn Cho ,  Jong Woo Park ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/32

Abstract: A display device includes a pixel, a first control pad, a second control pad, and a first dummy pad. The pixel may emit light with luminance corresponding to a data signal. Supply of the data signal to the pixel depends on a first control signal and a second control signal. The first control pad is connected to a first control line for supplying the first control signal. The second control pad is connected to a second control line for supplying the second control signal. The first dummy pad is positioned between the first control pad and the second control pad and may receive a first dummy signal. A voltage level of the first dummy signal is in a range from a voltage level of the first control signal to a voltage level of the second control signal.

公开(公告)号：USD904398S1

公开(公告)日：2020-12-08

申请号：US29680758

申请日：2019-02-19

Applicant: Samsung Display Co., Ltd.

Designer： Jong Woo Park ,  Ju Hee Lee ,  Dae Youn Cho ,  Young Tae Choi

公开(公告)号：US20190213958A1

公开(公告)日：2019-07-11

申请号：US16240515

申请日：2019-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Youn Cho ,  Tae Young Kim ,  Hee Jin Kim ,  Jong Woo Park ,  Young Tae Choi

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3258 ,  H01L27/32

Abstract: An organic light-emitting display device includes a display unit having a plurality of pixel units. The display device also includes a timing controller for calculating a black bias pixel ratio (BBPR) of the display unit based on image signals provided by an external source and for generating a control signal based on the BBPR. The BBPR is the ratio of a number of pixel units in a black state to a total number of pixel units. A power supply unit provides a driving voltage to the display unit based on the control signal from the timing controller, wherein the power supply unit provides a first driving voltage to the display unit when the BBPR is less than a reference value and provides a second driving voltage, which is higher than the first driving voltage, otherwise.

公开(公告)号：US12046199B2

公开(公告)日：2024-07-23

申请号：US18066981

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Dae Youn Cho ,  Jong Woo Park ,  Sang Kil Kim ,  Ji Ho Moon ,  Young Tae Choi

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028

Abstract: A pixel including: a light emitting element; a first transistor connected between a first node and a second node, and to generate a driving current to flow from a first power line to a second power line through the light emitting element; a second transistor connected between a data line and the first node; a third transistor connected between the second node and a third node corresponding to a gate electrode of the first transistor; a fourth transistor connected between the third node and a third power line; a fifth transistor connected between the first power line and the first node; a sixth transistor connected between the second node and a fourth node corresponding to a first electrode of the light emitting element; a seventh transistor connected between the fourth node and a fourth power line; and an eighth transistor connected between the fourth node and a fifth power line.

公开(公告)号：US11870020B2

公开(公告)日：2024-01-09

申请号：US17076009

申请日：2020-10-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ha Yeon Shin ,  Jong Woo Park ,  Dae Youn Cho ,  Young Tae Choi

IPC: H01L33/54 ,  G09G3/20 ,  H01L33/56 ,  H10K19/00 ,  H10K50/80

CPC classification number: H01L33/54 ,  G09G3/20 ,  H01L33/56 ,  H10K19/00 ,  H10K50/80 ,  G09G2320/028 ,  G09G2320/068

Abstract: A display device may include a substrate. A first light emitting element is disposed on the substrate. A second light emitting element is disposed on the substrate and is positioned adjacent to the first light emitting element. A first encapsulation layer is disposed on the first light emitting element and the second light emitting element. A light path control layer is disposed on the first encapsulation layer. The light path control layer includes a first pattern overlapping the first light emitting element and having a first refractive index and a second pattern overlapping the second light emitting element and having a second refractive index that is greater than the first refractive index.

公开(公告)号：US11605355B2

公开(公告)日：2023-03-14

申请号：US17372929

申请日：2021-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Youn Cho ,  Sang Kil Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Dong Gi Ahn ,  Jong Won Lee ,  Ju Hee Lee ,  Young Tae Choi

IPC: G09G3/00 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/20 ,  H01L27/32 ,  H01L51/50

Abstract: An organic light emitting display device includes scan lines arranged in horizontal lines, data lines intersecting the scan lines, a pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels, a panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements, and a first line coupled to the first switching elements and a second line coupled to the second switching elements. Data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements, and data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements.

公开(公告)号：US11232754B2

公开(公告)日：2022-01-25

申请号：US16786045

申请日：2020-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Tae Young Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3266 ,  G09G3/3233 ,  H01L27/32 ,  H01L29/786 ,  H01L29/06 ,  G09G3/3275

Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.