Display device

Patent metadata

Field	Value
Publication number	US-10747068-B2
Application number	US-201916390004-A
Country	US
Kind code	B2
Filing date	Apr 22, 2019
Priority date	Apr 5, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A display device includes a first base substrate including a display area and a peripheral area around the display area; a voltage line disposed on the peripheral area of the first base substrate; a protrusion disposed on the voltage line and including a first pattern containing a first color material and a second pattern containing a second color material different from the first color material; a connection electrode disposed on the protrusion and connected with the voltage line; and a light-blocking pattern disposed on the connection electrode and provided with an opening for partially exposing the connection electrode, wherein the protrusion includes a multilayer portion where the first pattern and the second pattern overlap each other and a single-layer portion where the first pattern and the second pattern do not overlap each other, and a lateral surface of the light-blocking pattern, defining the opening, overlaps the single-layer portion.

First claim

What is claimed is:

1. A display device, comprising:
a first base substrate including a display area and a peripheral area around the display area;
a voltage line disposed on the peripheral area of the first base substrate;
a protrusion disposed on the voltage line and including a first pattern including a first color material and a second pattern including a second color material different from the first color material;
a connection electrode disposed on the protrusion and connected with the voltage line; and
a light-blocking pattern disposed on the connection electrode and provided with an opening for partially exposing the connection electrode,
wherein the protrusion includes a multilayer portion where the first pattern and the second pattern overlap each other and a single-layer portion where the first pattern and the second pattern do not overlap each other, and
wherein the light-blocking pattern overlaps the single-layer portion, and the light-blocking pattern does not overlap the multilayer portion.

2. The display device of claim 1 ,
wherein the light-blocking pattern completely covers the single-layer portion.

3. The display device of claim 1 ,
wherein the multilayer portion overlaps the voltage line.

4. The display device of claim 1 ,
wherein the light-blocking pattern includes a portion overlapping the connection electrode and the single-layer portion, and
a difference between a maximum height from a surface of the first base substrate to an upper surface of the portion overlapping the connection electrode and the single-layer portion and a maximum height from the surface of the first base substrate to an upper surface of the connection electrode is 0 um or more and 2 um or less.

5. The display device of claim 1 , further comprising:
an organic layer disposed between the connection electrode and the protrusion and including a hole exposing the voltage line,
wherein the protrusion does not overlap the hole, the connection electrode is connected to the voltage line through the hole, and the light-blocking pattern covers the hole.

6. The display device of claim 1 , further comprising:
a gate line disposed on the display area of the first base substrate and a data line insulated from the gate line and intersecting the gate line;
a switching element disposed on the display area of the first base substrate and connected with the gate line and the data line;
a passivation layer disposed on the switching element;
a first electrode disposed on the passivation layer and connected with the switching element;
a color filter disposed between the first base substrate and the first electrode and overlapping the first electrode; and
a light-blocking member disposed on the passivation layer, overlapping the switching element, and made of the same material as the light-blocking pattern.

7. The display device of claim 6 ,
wherein the color filter includes the first color material or the second color material.

8. The display device of claim 6 ,
wherein the color filter includes a third color material different from the first color material and the second color material.

9. The display device of claim 6 , further comprising:
an organic layer disposed between the switching element and the light-blocking member,
wherein the first electrode is connected to the switching element through a contact hole formed between the organic layer and the passivation layer, and the light-blocking member covers the contact hole.

10. The display device of claim 1 , further comprising:
a second base substrate facing the first base substrate;
a second electrode disposed on a surface of the second base substrate facing the first base substrate; and
a conductive member electrically connecting a portion of the connection electrode, the portion being exposed through the opening, and the second electrode.

11. The display device of claim 10 ,
wherein the conductive member is a conductive ball.

12. The display device of claim 11 , further comprising:
a sealing member disposed between the peripheral area of the first base substrate and the second electrode,
wherein the sealing member includes the conductive ball.

13. The display device of claim 1 , wherein the first pattern directly contacts the second pattern in the multilayer portion.

14. A display device, comprising:
a first base substrate including a display area and a peripheral area around the display area;
a voltage line disposed on the peripheral area of the first base substrate;
a protrusion disposed on the voltage line and including a first pattern including a first color material, a second pattern including a second color material different from the first color material, and a third pattern including a third color material different from the first color material and the second color material;
a connection electrode disposed on the protrusion and connected with the voltage line; and
a light-blocking pattern disposed on the connection electrode, partially overlapping the protrusion, and provided with an opening for partially exposing the connection electrode,
wherein the protrusion includes a first multilayer portion where all the first pattern, the second pattern, and the third pattern overlap each other and a single-layer portion where the first pattern, the second pattern, and the third pattern do not overlap each other at all, and
wherein the light-blocking pattern does not overlap the first multilayer portion.

15. The display device of claim 14 ,
wherein the light-blocking pattern overlaps the single-layer portion.

16. The display device of claim 15 ,
wherein the single-layer portion completely overlap the light-blocking pattern.

17. The display device of claim 14 , further comprising:
a second multilayer portion where only two patterns selected from the first pattern, the second pattern, and the third pattern overlap each other,
wherein the light-blocking pattern overlaps the second multilayer portion, and the single-layer portion completely overlaps the light-blocking pattern.

18. The display device of claim 14 , further comprising:
a gate line disposed on the display area of the first base substrate and a data line insulated from the gate line and intersecting the gate line;
a switching element disposed on the display area of the first base substrate and connected with the gate line and the data line;
a first electrode connected with the switching element;
a color filter disposed between the first base substrate and the first electrode and overlapping the first electrode; and
a light-blocking member disposed on the switching element and made of the same material as the light-blocking pattern,
wherein the color filter includes any one of the first color material, the second color material, and the third color material.

19. The display device of claim 18 , further comprising:
a second base substrate facing the first base substrate;
a second electrode disposed on one surface of the second base substrate facing the first base substrate; and
a conductive member electrically connecting a portion of the connection electrode, the portion being exposed through the opening, and the second electrode.

20. The display device of claim 14 , wherein the second pattern directly contacts at least one of the first pattern and the third pattern in the first multilayer portion.

21. A display device, comprising:
a first base substrate including a display area and a peripheral area around the display area;

Assignees

• Samsung Display Co Ltd

Inventors

• Joo Sun Kyu
• Oh Keun Chan
• Lee Jun Woo
• Lee Yun Ho

Classifications

• G02F2202/16

  conductive · CPC title

• G02F1/136209 Primary

  Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G02F2201/123

  pixel · CPC title

• G02F2201/121

  common or background · CPC title