IP Library Granted Patent US 7,436,578
Granted Patent B2
US 7,436,578 · App. 11/552,345 · Granted Oct 14, 2008

Electrophoretic display and manufacturing method thereof

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Quick Facts
Patent No.
US 7,436,578
App. No.
11/552,345
Granted
Oct 14, 2008
Kind
B2
Abstract

An electrophoretic display includes a thin film transistor formed on an insulation substrate, a pixel electrode electrically connected to the thin film transistor, a partitioning wall partitioning the pixel electrode, an ink formed on the pixel electrode exposed between sections of the partitioning wall and in which an electrophoretic member is dispersed, and a common electrode panel formed on the ink and the partitioning wall and having a common electrode.

Claims (77)

1. An electrophoretic display, comprising:

a thin film transistor on an insulation substrate;

a pixel electrode electrically connected to the thin film transistor;

a partitioning wall partitioning the pixel electrode into exposure and non-exposure regions;

an ink formed on the exposed region of the pixel electrode;

an electrophoretic member dispersed in the ink; and

a common electrode panel formed on the ink and the partitioning wall and having a common electrode.

2. The electrophoretic display of claim 1 , further comprising an organic layer formed between the ink and the common electrode.

3. The electrophoretic display of claim 1 , wherein the partitioning wall is formed to include at least one of an organic insulating material and an inorganic insulating material.

4. The electrophoretic display of claim 1 , wherein the partitioning wall is formed in a lattice shape.

5. The electrophoretic display of claim 1 , wherein the ink including the electrophoretic member is formed by a jetting member.

6. The electrophoretic display of claim 1 , wherein the electrophoretic member includes an electrophoretic particle.

7. The electrophoretic display of claim 6 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of blue, green, and red; and

a second electrophoretic particle having a black color.

8. The electrophoretic display of claim 6 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of yellow, magenta, and cyan; and

a second electrophoretic particle having a black color.

9. The electrophoretic display of claim 6 , wherein:

the electrophoretic particle has one color of blue, green, and red; and

the ink has a black color.

10. The electrophoretic display of claim 6 , wherein:

the electrophoretic particle has one color of yellow, magenta, and cyan; and

the ink has a black color.

11. The electrophoretic display of claim 6 , wherein the electrophoretic member further comprises:

a dispersion medium in which the electrophoretic particle is dispersed; and

a capsule containing the electrophoretic particle and the dispersion medium therein.

12. The electrophoretic display of claim 11 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of blue, green, and red; and

a second electrophoretic particle having a black color.

13. The electrophoretic display of claim 11 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of yellow, magenta, and cyan; and

a second electrophoretic particle having a black color.

14. The electrophoretic display of claim 11 , wherein:

the electrophoretic particle has one color of blue, green, and red; and

the dispersion medium has a black color.

15. The electrophoretic display of claim 11 , wherein:

the electrophoretic particle has one color of yellow, magenta, and cyan; and

the dispersion medium has a black color.

16. A method of manufacturing an electrophoretic display, comprising:

forming a thin film transistor and a pixel electrode electrically connected to the thin film transistor on an insulation substrate;

forming a partitioning wall partitioning the pixel electrode into exposure and non-exposure regions;

dropping an ink in which an electrophoretic member is dispersed on the exposure region of the pixel electrode;

forming a common electrode panel by forming a common electrode on an insulation substrate; and

adhering the common electrode panel onto the ink and the partitioning wall.

17. The method of manufacturing an electrophoretic display of claim 16 , wherein the forming of the common electrode panel further comprises forming an organic layer on the common electrode.

18. The method of manufacturing an electrophoretic display of claim 16 , wherein in the forming of the partitioning wall, the partitioning wall is formed to include at least one of an organic insulating material and an inorganic insulating material.

19. The method of manufacturing an electrophoretic display of claim 16 , wherein in the forming of the partitioning wall, the partitioning wall is formed in a lattice shape.

20. The method of manufacturing an electrophoretic display of claim 16 , wherein the dripping of the ink is performed using a jetting member.

21. The method of manufacturing an electrophoretic display of claim 16 , wherein the electrophoretic member includes an electrophoretic particle.

22. The method of manufacturing an electrophoretic display of claim 21 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of blue, green, and red; and

a second electrophoretic particle having a black color.

23. The method of manufacturing an electrophoretic display of claim 21 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of yellow, magenta, and cyan; and

a second electrophoretic particle having a black color.

24. The method of manufacturing an electrophoretic display of claim 21 , wherein:

the electrophoretic particle has one color of blue, green, and red; and

the ink has a black color.

25. The method of manufacturing an electrophoretic display of claim 21 , wherein:

the electrophoretic particle has one color of yellow, magenta, and cyan; and

the ink has a black color.

26. The method of manufacturing an electrophoretic display of claim 21 , wherein the electrophoretic member further comprises:

a dispersion medium in which the electrophoretic particle is dispersed; and

a capsule containing the electrophoretic particle and the dispersion medium therein.

27. The method of manufacturing an electrophoretic display of claim 26 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of blue, green, and red; and

a second electrophoretic particle having a black color.

28. The method of manufacturing an electrophoretic display of claim 26 , wherein the electrophoretic particle comprises:

a first electrophoretic particle having one color of yellow, magenta, and cyan; and

a second electrophoretic particle having a black color.

29. The method of manufacturing an electrophoretic display of claim 26 , wherein:

the electrophoretic particle has one color of blue, green, and red; and

the dispersion medium has a black color.

30. The method of manufacturing an electrophoretic display of claim 26 , wherein:

the electrophoretic particle has one color of yellow, magenta, and cyan; and

the dispersion medium has a black color.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2020
From: SAMSUNG DISPLAY CO., LTD.
To: HYDIS TECHNOLOGIES CO., LTD.
Reel/Frame 052598/0856 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029019/0139 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2006
From: LEE, WOO-JAE; SHIN, SEONG-SIK
To: SAMSUNG ELECTRONICS CO., LTD
Reel/Frame 018429/0229 →