Display apparatus

Patent metadata

Field	Value
Publication number	US-11587996-B2
Application number	US-202017088489-A
Country	US
Kind code	B2
Filing date	Nov 3, 2020
Priority date	Nov 6, 2018
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A display apparatus includes a first transistor, a first pixel electrode, a second transistor, and a second pixel electrode. The first transistor includes a first drain electrode. The first pixel electrode is positioned between an edge of the display apparatus and a center of the display apparatus and includes a first recessed structure. The first recessed structure directly contacts the first drain electrode. The second transistor includes a second drain electrode. The second pixel electrode is positioned between the edge of the display apparatus and the first pixel electrode and includes at least one recessed structure. The at least one recessed structure includes a second recessed structure. The second recessed structure directly contacts the second drain electrode. A total maximum width of the at least one recessed structure is greater than a maximum width of the first recessed structure.

First claim

What is claimed is:

1. A display apparatus, comprising:
a first transistor structure comprising a first drain electrode;
a first pixel electrode positioned between an edge of the display apparatus and a center of the display apparatus and comprising a first recessed structure, wherein the first recessed structure directly contacts the first drain electrode;
a second transistor structure comprising a second drain electrode: and
a second pixel electrode positioned between the edge of the display apparatus and the first pixel electrode and comprising at least one recessed structure, wherein the at least one recessed structure comprises a second recessed structure, wherein the second recessed structure directly contacts a face of the second drain electrode, wherein a first direction is parallel to the face of the second drain electrode, and wherein a total maximum width of the at least one recessed structure in the first direction is greater than a maximum width of the first recessed structure in the first direction.

2. The display apparatus of claim 1 , further comprising an organic layer, wherein a first section of the organic layer overlaps the first pixel electrode, wherein a second section of the organic layer overlaps the second pixel electrode and is thinner than the first section of the organic layer in a second direction, and wherein the second direction is perpendicular to the first direction.

3. The display apparatus of claim 2 , wherein the organic layer is formed by polymerization of a monomer.

4. The display apparatus of claim 1 , wherein the at least one recessed structure further comprises a third recessed structure, wherein the second recessed structure is deeper than the third recessed structure in a second direction, and wherein the second direction is perpendicular to the first direction.

5. The display apparatus of claim 1 , further comprising:
a third transistor structure comprising a third drain electrode; and
a third pixel electrode positioned between the edge of the display apparatus and the second pixel electrode, comprising a third-pixel-electrode recessed structure, and comprising one or more additional recessed structures, wherein the third-pixel-electrode recessed structure directly contacts the third drain electrode, and wherein a total number of recessed structures of the third pixel electrode is greater than a total number of recessed structures of the second pixel electrode.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Eonjoo
• Kim Hyoeng-Ki
• Park Kwangwoo
• Lee Dongki
• Jung Jin-Whan

Classifications

• H10K59/12 Primary

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/351

  comprising more than three subpixels, e.g. red-green-blue-white [RGBW] · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/123 Primary

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title