Transparent display apparatus

Patent metadata

Field	Value
Publication number	US-2025255124-A1
Application number	US-202418941970-A
Country	US
Kind code	A1
Filing date	Nov 8, 2024
Priority date	Feb 2, 2024
Publication date	Aug 7, 2025
Grant date	—

Abstract

A transparent display apparatus is provided. The transparent display apparatus includes a substrate including a non-transmissive area including a light emission area in which a light emitting element is disposed and a transmissive area. The transparent display apparatus includes at least one power line extended in a first direction in the non-transmissive area on the substrate. The transparent display apparatus includes at least one gate line extended in a second direction transverse to the first direction to cross the non-transmissive area and the transmissive area on the substrate. The transparent display apparatus includes at least one protruded line extended in different directions to cross between the first direction and the second direction on the substrate.

First claim

1 . A transparent display apparatus comprising:
a substrate including:
a non-transmissive area including a light emission area in which a light emitting element is disposed, and
a transmissive area;
at least one power line extended in a first direction in the non-transmissive area on the substrate; at least one gate line extended in a second direction transverse to the first direction to cross the non-transmissive area and the transmissive area on the substrate; and at least one protruded line extended in different directions to cross between the first direction and the second direction on the substrate.

2 . The transparent display apparatus of claim 1 , wherein the at least one protruded line is protruded in an upward direction of the substrate,

3 . The transparent display apparatus of claim 1 , wherein the at least one protruded line includes at least one of an inorganic insulating material or an organic insulating material on the substrate.

4 . The transparent display apparatus of claim 1 , wherein the at least one protruded line is made of a same material as that of a planarization layer on at least one inorganic insulating layer on the substrate.

5 . The transparent display apparatus of claim 4 , wherein the at least one protruded line further includes an undercut area configured by removing at least a portion of the at least one inorganic insulating layer below the planarization layer.

6 . The transparent display apparatus of claim 5 , wherein the undercut area of the at least one protruded line separates or disconnects an organic light emitting layer constituting the light emitting element.

7 . The transparent display apparatus of claim 4 , wherein the at least one protruded line further includes a color filter material,

8 . The transparent display apparatus of claim 7 , wherein the color filter material includes a blue color material.

9 . The transparent display apparatus of claim 7 , wherein the color filter material of the at least one protruded line is disposed on the at least one inorganic insulating layer, and is covered by the planarization layer.

10 . The transparent display apparatus of claim 7 , wherein the at least one protruded line further includes a dummy electrode pattern between the color filter material and the at least one inorganic insulating layer, and
wherein the color filter material of the at least one protruded line is covered by the planarization layer and the dummy electrode pattern.

11 . The transparent display apparatus of claim 10 , wherein the at least one protruded line further includes an undercut area configured by removing at least a portion of the at least one inorganic insulating layer below the dummy electrode pattern.

12 . The transparent display apparatus of claim 11 , wherein an upper surface and side surfaces of the dummy electrode pattern of the at least one protruded line is covered by the planarization layer.

13 . The transparent display apparatus of claim 4 , wherein the at least one protruded line includes:
a first protruded line portion that overlaps the non-transmissive area; and a second protruded line portion that overlaps the transmissive area.

14 . The transparent display apparatus of claim 13 , wherein the first protruded line portion is extended in the second direction, and
wherein the second protruded line portion is extended in a third direction between the first direction and the second direction.

15 . The transparent display apparatus of claim 14 , wherein the first protruded line portion overlaps at least a portion of the at least one power line, and does not overlap the at least one gate line.

16 . The transparent display apparatus of claim 15 , wherein the first protruded line portion further includes an undercut area configured by removing at least a portion of the at least one inorganic insulating layer below the planarization layer.

17 . The transparent display apparatus of claim 16 , further comprising an auxiliary power contact portion disposed in the non-transmissive area on the substrate, electrically connected to the at least one power line and overlapped with at least a portion of the first protruded line portion.

18 . The transparent display apparatus of claim 17 , wherein a portion of the auxiliary power contact portion is exposed by the undercut area of the first protruded line portion.

19 . The transparent display apparatus of claim 17 , further comprising:
at least one signal line disposed in the non-transmissive area on the substrate and extended in the first direction; and a block pattern disposed between the first protruded line portion and the at least one signal line.

20 . The transparent display apparatus of claim 19 , wherein the block pattern is configured integrally with the auxiliary power contact portion or configured to be spaced apart from the auxiliary power contact portion.

21 . The transparent display apparatus of claim 14 , wherein the second protruded line portion does not overlap the at least one power line, but overlaps at least a portion of the at least one gate line.

22 . The transparent display apparatus of claim 21 , wherein the second protruded line portion further includes an undercut area configured by removing at least a portion of the at least one inorganic insulating layer below the planarization layer.

23 . The transparent display apparatus of claim 22 , further comprising a block pattern disposed at a portion where the second protruded line portion and the at least one gate line overlap each other.

24 . The transparent display apparatus of claim 1 , wherein the substrate includes a pixel area in which a plurality of pixels consisting of a plurality of subpixels including the light emitting element disposed in the non-transmissive area and the transmissive area are disposed, and
wherein the at least one protruded line includes:
a first protruded line portion extended in the second direction in the non-transmissive area of at least one of the plurality of pixels arranged in the first direction in the pixel area; and
a second protruded line portion extended from the first protruded line portion in a third direction between the first direction and the second direction in the transmissive area of pixels adjacent to each other in the first direction among the plurality of pixels arranged in the first direction in the pixel area.

25 . The transparent display apparatus of claim 24 , wherein, each subpixel comprises a plurality of divided electrodes, and each divided electrode of the plurality of divided electrodes corresponds to a divided light emission area provided in each subpixel.

26 . The transparent display apparatus of claim 24 , wherein the at least one protruded line includes a plurality of protruded lines arranged along a fourth direction different from the third direction between the first direction and the second direction in the pixel area.

27 . The transparent display apparatus of claim 26 , wherein the plurality of protruded lines is arranged to be spaced apart from each other in the second direction.

28 . The transparent display apparatus of claim 25 , wherein the first protruded line portion and the second protruded line portion of the plurality of protruded lines are extended in a stepwise shape along the fourth direction.

29 . The transparent display apparat

Assignees

• Lg Display Co Ltd

Inventors

• Song Jihun
• Kwon Hoiyong

Classifications

• H10K59/124

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

• H10K59/121

  characterised by the geometry or disposition of pixel elements · CPC title

• H10K59/88

  Dummy elements, i.e. elements having non-functional features · CPC title

• H10K59/38

  comprising colour filters or colour changing media [CCM] · CPC title

• H10K2102/3031

  Two-side emission, e.g. transparent OLEDs [TOLED] · CPC title