IP Library Granted Patent US 7,547,920
Granted Patent B2
US 7,547,920 · App. 10/995,477 · Granted Jun 16, 2009

Pattern mask, light-emitting unit manufactured using the same, display apparatus manufactured using the same and method of manufacturing display apparatus using the same

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Quick Facts
Patent No.
US 7,547,920
App. No.
10/995,477
Granted
Jun 16, 2009
Kind
B2
Abstract

A display apparatus includes a light-emitting unit. The light-emitting unit includes a first electrode, a bank, an organic light-emitting layer and a second electrode. The first electrode is formed on a substrate. The first electrode receives a first driving signal from a circuit unit. The bank surrounds sides of the first electrode and has a receiving portion formed on an upper face of the bank. The organic light-emitting layer is formed on the first electrode. The second electrode is formed on the organic light-emitting layer. The second electrode receives a second driving signal from the circuit unit. Therefore, even though the organic light-emitting material is abnormally dropped onto an unintended position, the receiving portion prevents the organic light-emitting material from flowing into a neighboring cavity, so that yield increases and productivity is enhanced.

Claims (19)

1. A display apparatus comprising:

a light-emitting unit including:

a first electrode formed on a substrate, the first electrode configured to receive a first driving signal from a circuit unit;

a bank that surrounds sides of the first electrode, the bank having a receiving portion on an upper face of the bank;

a light-emitting layer formed on the first electrode; and

a second electrode formed on the light-emitting layer, the second electrode configured to receive a second driving signal from the circuit unit, wherein the receiving portion corresponds to a portion recessed from the upper face of the bank such that a depth of the recessed portion is substantially same as a height of the bank.

2. A display apparatus comprising:

a light-emitting unit including:

a first electrode formed on a substrate, the first electrode configured to receive a first driving signal from a circuit unit;

a bank that surrounds sides of the first electrode, the bank having a receiving portion on an upper face of the bank;

a light-emitting layer formed on the first electrode; and

a second electrode formed on the light-emitting layer, the second electrode configured to receive a second driving signal from the circuit unit,

wherein the receiving portion corresponds to a plurality of recessed portions arranged along the first electrode.

3. A display apparatus comprising:

a light-emitting unit including:

a first electrode formed on a substrate, the first electrode configured to receive a first driving signal from a circuit unit;

a bank that surrounds sides of the first electrode, the bank having a receiving portion on an upper face of the bank;

a light-emitting layer formed on the first electrode; and a second electrode formed on the light-emitting layer, the second electrode configured to receive a second driving signal from the circuit unit,

wherein the receiving portion corresponds to portions protruded substantially in parallel with one another.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028984/0774 →