Substrate for display

Patent metadata

Field	Value
Publication number	US-12011907-B2
Application number	US-202017282511-A
Country	US
Kind code	B2
Filing date	Jan 10, 2020
Priority date	Jan 11, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A display substrate according to the embodiment includes: a base material having a long direction and a short direction, and including one surface and the other surface, and a first region and a second region; and a hole passing through the one surface and the other surface of the base material, wherein the first region is defined as a folding region in which the one surface is folded to face, the second region is defined as an unfolding region, the hole includes a first hole formed in the first region, and the first hole includes at least three first holes having different sizes in the long direction of the base material.

First claim

What is claimed is:

1. A display substrate comprising:
a base material that is foldable based on a folding axis,
wherein the base material is defined in a first direction corresponding to the folding axis and a second direction perpendicular to the first direction,
wherein the base material includes an opening pattern in which at least one of one surface or another surface of the base material is open,
wherein the base material includes a first side surface and a second side surface positioned in the first direction,
wherein the opening pattern includes a first pattern part, a second pattern part, and a third pattern part that are spaced apart from each other along the second direction,
wherein the first pattern part includes a plurality of first patterns spaced from each other along the first direction and provided at a position farther in the second direction from the folding axis than the second and third pattern parts,
wherein the second pattern part includes a plurality of second patterns spaced from each other along the first direction and provided at a position closer in the second direction from the folding axis than the first pattern part,
wherein the third pattern part includes a plurality of third patterns spaced from each other along the first direction and provided at a position closer in the second direction from the folding axis than the first pattern part and the second pattern part,
wherein the plurality of third patterns are in non-contact with the first side surface and the second side surface,
wherein the plurality of first patterns includes a first outer pattern positioned closest to the first side surface,
wherein the plurality of second patterns includes a second outer pattern positioned closest to the first side surface,
wherein the plurality of third patterns includes a third outer pattern positioned closest to the first side surface,
wherein the first to third outer patterns are spaced apart from the first side surface in the first direction,
wherein the first outer pattern has a first distance in the first direction from a first central axis in the first direction of the first outer pattern the first side surface,
wherein the second outer pattern has a second distance in the first direction from a second central axis in the first direction of the second outer pattern to the first side surface,
wherein the third outer pattern has a third distance in the first direction from a third central axis the first direction of the third outer pattern to the first side surface, and
wherein the first to third distances are different from each other.

2. The display substrate of claim 1 , wherein a distance between the first central axis and the second central axis in the first direction is equivalent to a distance between the second central axis and the third central axis in the first direction.

3. The display substrate of claim 1 , wherein a distance between the first central axis and the second central axis in the second direction is equivalent to a distance between the second central axis and the third central axis in the second direction.

4. The display substrate of claim 1 , wherein a thickness of the base material is 0.01 mm to 2 mm, and
wherein a difference between maximum lengths in the first direction of the first patterns, the second patterns and the third patterns satisfies a following Equation 1;
0.8t≤difference between the maximum lengths in the first direction of the first patterns, the second patterns and the third patterns≤1.1t  [Equation 1]

(where t is a thickness of the base material).

5. The display substrate of claim 1 , wherein a thickness of the base material is 0.01 mm to 2 mm, and
wherein a difference between a maximum length in the first direction and a minimum length in the first direction of the first patterns, the second patterns and the third patterns satisfies a following Equation 2;
0.2t≤difference between the maximum length in the first direction and the minimum length in the first direction of the first patterns, the second patterns and the third patterns  [Equation 2]

(where t is a thickness of the base material).

6. The display substrate of claim 1 , wherein the third pattern part includes a third-first pattern part and a third-second pattern part that are spaced apart from each other in the second direction with the folding axis interposed therebetween.

7. The display substrate of claim 1 , wherein widths of the first patterns, the second patterns, and the third patterns in the second direction are equivalent.

8. The display substrate of claim 7 , wherein a size of the first pattern, the second pattern, and the third pattern is proportional to a curvature size of the base material, and
wherein proportions of the first pattern, the second pattern, and the third pattern vary depending on the curvature size of the base material.

9. The display substrate of claim 6 , wherein a length in the first direction of a third pattern of the third-first pattern part is equivalent to a length in the first direction of a third pattern of the third-second pattern part.

10. The display substrate of claim 1 , wherein the base material further comprises: a first hinge portion and a second hinge portion connected to the first side surface and spaced apart in the second direction, and
wherein the first hinge portion and the second hinge portion are in non-contact with the first to third outer patterns.

11. A display substrate comprising:
a base material foldable based on a folding axis,
wherein the base material is defined in a first direction corresponding to the folding axis and a second direction perpendicular to the first direction,
wherein the base material includes an opening pattern in which at least one of one surface or another surface of the base material is open,
wherein the base material includes a first side surface and a second side surface positioned in the first direction,
wherein the opening pattern includes a first pattern part, a second pattern part, and a third pattern part that are spaced apart from each other along second direction,
wherein the first pattern part includes a plurality of first patterns spaced from each other along the first direction and provided at a position farther in the second direction from the folding axis than the second and third pattern parts,
wherein the second pattern part includes a plurality of second patterns spaced from each other along the first direction and provided at a position closer in the second direction from the folding axis than the first pattern part,
wherein the third pattern part includes a plurality of third patterns spaced from each other along the first direction and provided at a position closer in the second direction from the folding axis than the first pattern part and the second pattern part, and
wherein the third pattern part includes a third-first pattern part and a third-second pattern part that are spaced apart from each other in the second direction with the folding axis interposed therebetween.

12. The display substrate of claim 11 , wherein the plurality of third patterns are in non-contact with the first side surface and the second side surface,
wherein the plurality of first pattern includes a first outer pattern positioned closest to the first side surface,
wherein the plurality of second patterns includes a second outer pattern positioned closest to the first side surface,
wherein the plurality of third patterns includes a third outer pattern positioned closest to the first side surface,
wherein the first to third outer patterns are spaced apart from the first side surface in the first direction,
wherein the

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Duck Hoon
• Kim Hae Sik
• Paik Jee Heum
• Chang Woo Young

Classifications

• G09F9/301

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H05K5/0226

  Hinges · CPC title

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title