公开(公告)号：US11751437B2

公开(公告)日：2023-09-05

申请号：US17675908

申请日：2022-02-18

Applicant: LG Display Co., Ltd.

Inventor： Mi-Na Kim ,  Namseok Yoo ,  JungSun Beak ,  Seongjoo Lee ,  Sunmi Lee

IPC: H10K59/122 ,  H10K50/818 ,  H10K50/844 ,  H10K59/35

CPC classification number: H10K59/122 ,  H10K50/818 ,  H10K50/844 ,  H10K59/353

Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.

公开(公告)号：US20220173183A1

公开(公告)日：2022-06-02

申请号：US17675908

申请日：2022-02-18

Applicant: LG Display Co., Ltd.

Inventor： Mi-Na Kim ,  Namseok Yoo ,  JungSun Beak ,  Seongjoo Lee ,  Sunmi Lee

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm or less, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm or less and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.

公开(公告)号：US11189815B2

公开(公告)日：2021-11-30

申请号：US16716309

申请日：2019-12-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Mi-Na Kim ,  JungSun Baek ,  Seongjoo Lee ,  Sunmi Lee ,  Namseok Yoo

IPC: H01L51/52 ,  H01L27/32

Abstract: A display panel can include a substrate including first, second and third subpixels; an overcoat layer including a first inclined surface in at least one of the first, second and third subpixels; first, second and third anode electrodes corresponding to the first, second and third subpixels, respectively, wherein at least one of the first, second and third anode electrodes includes a second inclined surface overlapping with the first inclined surface of the overcoat layer; first, second and third organic light emitting layers disposed on the first, second and third anode electrodes, respectively; and a bank layer disposed on the overcoat layer, the bank layer including a third inclined surface overlapping with both the first and second inclined surfaces of the overcoat layer and the at least one of the first, second and third anode electrodes, in which at least one of the first, second and third inclined surfaces is configured to reflect light emitted from a corresponding one of the first, second and third organic light emitting layers.

公开(公告)号：US10756288B2

公开(公告)日：2020-08-25

申请号：US16706476

申请日：2019-12-06

Applicant: LG Display Co., Ltd.

Inventor： Mi-Na Kim ,  Namseok Yoo ,  JungSun Beak ,  Seongjoo Lee ,  Sunmi Lee

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: A display device, such an organic light emitting display device is disclosed. The display device includes an insulating film including a concave portion in an area of at least one subpixel, a first electrode on a side portion of the concave portion and on the concave portion in an area of the subpixel, an organic layer overlapping the concave portion and on the first electrode. An organic layer disposed in the at least one blue subpixel may include at least one of a first light emitting dopant with a maximum emission wavelength of 457 nm, a second light emitting dopant with a full width at half maximum (FWHM) of 30 nm or less, and/or a third light emitting dopant with the maximum emission wavelength of 457 nm and the full width at half maximum of 30 nm or less. Thus, a display device with enhanced light extraction efficiency is provided.

公开(公告)号：US09065052B2

公开(公告)日：2015-06-23

申请号：US13720669

申请日：2012-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Mi-Na Kim ,  Kwang Hyun Kim ,  Jin Ho Park

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00 ,  H01L51/52 ,  H01L51/50

CPC classification number: H01L27/3211 ,  H01L51/0001 ,  H01L51/0021 ,  H01L51/504 ,  H01L51/506 ,  H01L51/5064 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/52 ,  H01L51/5203 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5265 ,  H01L51/5271 ,  H01L51/56 ,  H01L2251/558

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device includes a substrate in which red, green, and blue pixel areas are defined, a first electrode and a first hole transporting layer that are formed on the substrate, first to third emission common layers formed in each of the pixel areas on the first hole transporting layer, and an electron transporting layer and a second electrode that are formed on the third emission common layer. Accordingly, color mixture is prevented, limitations due to a defective mask are overcome, a process is simplified, and the manufacturing cost is saved.

Abstract translation: 讨论的是有机发光显示装置。 有机发光显示装置包括其中限定了红色，绿色和蓝色像素区域的基板，形成在基板上的第一电极和第一空穴传输层，形成在每个像素中的第一至第三发光公共层 第一空穴传输层上的区域和形成在第三发射共同层上的电子传输层和第二电极。 因此，防止了颜色混合，克服了由于掩膜缺陷引起的限制，简化了工艺，节省了制造成本。