Display unit and electronic apparatus

Patent metadata

Field	Value
Publication number	US-9231037-B2
Application number	US-201414487743-A
Country	US
Kind code	B2
Filing date	Sep 16, 2014
Priority date	Oct 23, 2013
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A display unit includes a first substrate and a second substrate opposed to each other, a display element having a first electrode and a second electrode on the first substrate, an auxiliary electrode provided on a surface facing the first substrate of the second substrate, and including a plurality of films stacked in a direction from the second substrate to the first substrate, and a plurality of pillars configured to electrically connect the auxiliary electrode to the second electrode.

First claim

What is claimed is:

1. A display unit, comprising:
a first substrate and a second substrate opposed to each other;
a display element having a first electrode and a second electrode on the first substrate;
an auxiliary electrode provided on a surface of the second substrate facing the first substrate, and including a plurality of films stacked in a direction from the second substrate to the first substrate; and
a plurality of pillars configured to electrically connect the auxiliary electrode to the second electrode.

2. The display unit according to claim 1 , wherein the display element includes a light emitting layer between the first electrode and the second electrode, and has the first electrode, the light emitting layer, and the second electrode in this order on the first substrate.

3. The display unit according to claim 1 , wherein one end of any of the pillars is in contact with one or more of the films, and the other end of any of the pillars is in contact with the second electrode.

4. The display unit according to claim 1 , wherein thicknesses of the films included in the auxiliary electrode are in decreasing order along a direction from the second substrate to the first substrate.

5. The display unit according to claim 1 , wherein densities of the films included in the auxiliary electrode are in decreasing order along a direction from the second substrate to the first substrate.

6. The display unit according to claim 1 , wherein Young's moduli of the films included in the auxiliary electrode are in decreasing order along a direction from the second substrate to the first substrate.

7. The display unit according to claim 1 , wherein each of the films included in the auxiliary electrode has a plurality of openings.

8. The display unit according to claim 7 , wherein Open area ratios of the films are in increasing order along a direction from the second substrate to the first substrate.

9. The display unit according to claim 1 , wherein the auxiliary electrode has a space between adjacent two of the films.

10. The display unit according to claim 1 , wherein the films included in the auxiliary electrode are fixed to one another.

11. The display unit according to claim 1 , wherein the pillars are inclined to respective surfaces of the first substrate and the second substrate.

12. The display unit according to claim 1 , further comprising a buffer layer between the auxiliary electrode and the second substrate.

13. A display unit, comprising:
a first substrate and a second substrate opposed to each other;
a display element having a first electrode and a second electrode on the first substrate;
an auxiliary electrode provided on a surface of the second substrate facing the first substrate; and
a plurality of pillars that are inclined to respective surfaces of the first substrate and the second substrate, and configured to electrically connect the auxiliary electrode to the second electrode.

14. The display unit according to claim 13 , wherein one end of any of the pillars is provided in a resin layer provided on one or both of the first substrate and the second substrate.

15. The display unit according to claim 13 , further comprising a buffer layer between the auxiliary electrode and the second substrate.

16. A display unit, comprising:
a first substrate and a second substrate opposed to each other;
a display element having a first electrode and a second electrode on the first substrate;
an auxiliary electrode provided on a surface of the second substrate facing the first substrate;
a buffer film between the auxiliary electrode and the second substrate; and
a plurality of pillars configured to electrically connect the auxiliary electrode to the second electrode.

17. The display unit according to claim 16 , wherein the buffer film includes a resin material.

18. An electronic apparatus, comprising
a display unit,
the display unit including
a first substrate and a second substrate opposed to each other,
a display element having a first electrode and a second electrode on the first substrate,
an auxiliary electrode provided on a surface of the second substrate facing the first substrate, and including a plurality of films stacked in a direction from the second substrate to the first substrate, and
a plurality of pillars configured to electrically connect the auxiliary electrode to the second electrode.

19. An electronic apparatus, comprising
a display unit,
the display unit including
a first substrate and a second substrate opposed to each other,
a display element having a first electrode and a second electrode on the first substrate,
an auxiliary electrode provided on a surface of the second substrate facing the first substrate; and
a plurality of pillars that are inclined to respective surfaces of the first substrate and the second substrate, and configured to electrically connect the auxiliary electrode to the second electrode.

20. An electronic apparatus, comprising
a display unit,
the display unit including
a first substrate and a second substrate opposed to each other,
a display element having a first electrode and a second electrode on the first substrate,
an auxiliary electrode provided on a surface of the second substrate facing the first substrate,
a buffer film between the auxiliary electrode and the second substrate, and
a plurality of pillars configured to electrically connect the auxiliary electrode to the second electrode.

Assignees

• Joled Inc

Inventors

• Shimayama Tsutomu

Classifications

• H10K59/8723

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/80522

  combined with auxiliary electrodes · CPC title

• H01L51/5228

  Electricity · mapped topic

• H01L27/322

  Electricity · mapped topic

• H01L51/525

  Electricity · mapped topic