公开(公告)号：US12245487B2

公开(公告)日：2025-03-04

申请号：US17672628

申请日：2022-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： Youngmin Kim ,  Shin Tack Kang ,  Yujin Kim ,  Haeil Park ,  Hajin Song ,  Kap Soo Yoon

IPC: H01L27/14 ,  H10K50/854 ,  H10K50/86 ,  H10K59/126 ,  H10K59/38 ,  H10K71/00 ,  H10K59/12 ,  H10K59/122 ,  H10K102/00

Abstract: A display panel includes: a window including a display area, and a non-display area adjacent to the display area; a color filter layer on the window; a circuit element layer including: a low refractive index layer covering the color filter layer; and a transistor on the low refractive index layer; a light control layer including: division partition walls on the circuit element layer; and a light control pattern between the division partition walls, and including quantum dots; and a display element layer on the light control layer, and including: a first electrode; a second electrode on the first electrode; and an emission layer between the first electrode and the second electrode and to generate light. The light passes through the light control layer, the circuit element layer, and the color filter layer to be transmitted to the window.

公开(公告)号：US20230295501A1

公开(公告)日：2023-09-21

申请号：US18169798

申请日：2023-02-15

Applicant: Samsung Display Co., Ltd. ,  DONGWOO FINE-CHEM Co., Ltd.

Inventor： Shinhyuk Yang ,  Beomsoo Kim ,  Hyeonsu Cho ,  Yujin Kim ,  Jeehoon Kim ,  Youngjin Yoon ,  Eunwon Lee ,  Donghan Kang

IPC: C09K13/06

CPC classification number: C09K13/06

Abstract: An etchant including: persulfate; a fluorine-containing compound; a chlorine-containing compound; a cyclic amine compound; an inorganic acid; sulfate; and water, wherein a tip control index (Y) of the etchant is a value of at least about 45.0 and not more than about 70.0, the tip control index (Y) being a value calculated by Equation 1:


Y=1.0×10−3×M(X1)+1.0×10−1×M(X2)+5.0×10−2×M(X3)+1.5×M(X1)×M(X2)+2.0×10−1×M(X1)×M(X3)+2.0×10−1×M(X2)×M(X3)  Equation 1

The description of Equation 1 is as in the specification.

公开(公告)号：US20220181427A1

公开(公告)日：2022-06-09

申请号：US17447046

申请日：2021-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： Shinhyuk Yang ,  Donghan Kang ,  Soonwook Hong ,  Yujin Kim ,  Jeehoon Kim ,  Hanhee Yoon

IPC: H01L27/32

Abstract: A display apparatus includes: a substrate including a display area, and a peripheral area; and a pad unit at the peripheral area, the pad unit including: a first conductive layer; a second conductive layer on the first conductive layer, and having a first opening; a third conductive layer on the second conductive layer, and having a second opening overlapping with the first opening, the second opening having an area less than an area of the first opening at a top surface of the second conductive layer; an organic protective layer filling the first opening, and having a third opening overlapping with the second opening; and an additional metal layer covering a top surface of the first conductive layer exposed through the first opening, an inner surface of the second opening, an inner surface of the third opening, and a portion of a top surface of the third conductive layer.

公开(公告)号：US20210359010A1

公开(公告)日：2021-11-18

申请号：US17136690

申请日：2020-12-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Shintack Kang ,  Yujin Kim ,  Hyunseok Kim ,  Kunhee Jo

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: A method of manufacturing a display apparatus includes: forming a display element layer above a lower substrate, where the display element layer includes first to third display elements; forming an encapsulation layer on the display element layer; forming first partition walls on the encapsulation layer to define first to third color regions, where the first to third color regions overlap the first to third display elements, respectively, in a view in a direction perpendicular to the lower substrate; forming second partition walls on the first partition walls; forming a quantum dot layer, which includes forming a second color quantum dot layer in the second color region and forming a third color quantum dot layer in the third color region; and removing the second partition walls.

公开(公告)号：US10672353B2

公开(公告)日：2020-06-02

申请号：US15691190

申请日：2017-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hongkyu Kim ,  Poyun Park ,  Yujin Kim ,  Jimyoung Seo ,  Gwangsoo Ahn

IPC: G09G3/36

Abstract: A method of driving a display device includes receiving a reference clock signal and frequency determination data to determine a pixel driving clock frequency and generate a pixel driving clock signal, generating and outputting a gate driving clock signal according to the pixel driving clock frequency, and outputting a driving voltage according to the pixel driving clock frequency. The driving voltage increases as the pixel driving clock frequency increases.

公开(公告)号：US10650759B2

公开(公告)日：2020-05-12

申请号：US15635121

申请日：2017-06-27

Applicant: Samsung Display Co., Ltd.

Inventor： Taehyeong An ,  Jeongbong Lee ,  Yujin Kim ,  Gyuhun Han

IPC: G09G3/36

Abstract: A display apparatus including a display panel, a gate driving part and a data driving part. The display panel is configured to display an image, and includes a gate line and a data line. The gate driving part is configured to output a gate signal to the gate line. The data driving part is configured to output a data signal to the data line, and to change a transition time when the data signal transits from a low level to a high level, according to at least one of a change of an inversion method for driving the display panel, and a change of a frame frequency of the image.

公开(公告)号：US10262610B2

公开(公告)日：2019-04-16

申请号：US15209655

申请日：2016-07-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeongbong Lee ,  Yujin Kim

IPC: G09G3/34 ,  G09G3/36

Abstract: There is provided a backlight unit including a backlight configured to generate light, and a backlight driving circuit configured to drive the backlight in a dimming mode on a basis of a dimming signal, the backlight driving circuit including a first comparator configured to detect a frequency of the dimming signal and to compare the frequency of the dimming signal with a reference frequency to determine a compared result, and a driver configured to selectively drive the backlight, based on the compared result, in an analog dimming mode in which a driving current of the backlight is controlled, or a mixed dimming mode by mixing the analog dimming mode and a digital dimming mode in which an on state and an off state of the backlight is controlled.