Capacitor device, organic light emitting display apparatus including the capacitor device, and method of manufacturing the organic light emitting display apparatus

Patent metadata

Field	Value
Publication number	US-9466652-B2
Application number	US-201514875611-A
Country	US
Kind code	B2
Filing date	Oct 5, 2015
Priority date	Apr 4, 2013
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

A capacitor device includes two top capacitor electrodes separated from each other and symmetrical to each other, two intermediate capacitor electrodes symmetrical to each other and respectively overlapping the top capacitor electrodes, a bridge coupling the intermediate capacitor electrodes without overlapping the top capacitor electrodes, and a driving voltage line coupled to the bridge and configured to apply a common voltage to the intermediate capacitor electrodes.

First claim

What is claimed is:

1. An organic light emitting display apparatus comprising:
two pixels symmetrical to each other, located on a substrate, and adjacent each other in a first direction, each of the pixels comprising a pixel circuit and an organic light emitting diode (OLED);
two top capacitor electrodes separated from each other and symmetrical to each other, each of the top capacitor electrodes being respectively located in one of the pixel circuits;
two intermediate capacitor electrodes symmetrical to each other and insulated from, and overlapping with, the top capacitor electrodes;
a bridge coupling the intermediate capacitor electrodes without overlapping the top capacitor electrodes; and
a driving voltage line coupled to the bridge, and configured to apply a common voltage to the intermediate capacitor electrodes.

2. The organic light emitting display apparatus of claim 1 , wherein an entirety of each of the top capacitor electrodes overlaps with a respective one of the intermediate capacitor electrodes.

3. The organic light emitting display apparatus of claim 1 , further comprising two bottom capacitor electrodes symmetrical to each other and located below the intermediate capacitor electrodes, the bottom capacitor electrodes being insulated from, and overlapping with, the intermediate capacitor electrodes.

4. The organic light emitting display apparatus of claim 3 , further comprising a contact node electrically coupling the bottom capacitor electrodes to each other, and electrically coupling the top capacitor electrodes to each other, via storage opening portions defined by the top capacitor electrodes, and by the intermediate capacitor electrodes, to expose the bottom capacitor electrodes.

5. The organic light emitting display apparatus of claim 4 , wherein the contact node is configured to apply an initialization voltage during an initialization period.

6. The organic light emitting display apparatus of claim 3 , further comprising a driving thin film transistor (TFT) comprising:
a gate electrode that is the bottom capacitor electrodes; and
an active layer insulated from the bottom capacitor electrodes.

7. The organic light emitting display apparatus of claim 1 , wherein the driving voltage line comprises:
a plurality of first driving voltage lines extending in a second direction crossing the first direction and configured to apply the common voltage to the pixels; and
a second driving voltage line coupled to the bridge and extending in the first direction.

8. The organic light emitting display apparatus of claim 7 , wherein the plurality of first driving voltage lines and the second driving voltage line comprise a mesh structure configuration.

9. The organic light emitting display apparatus of claim 7 , wherein the first driving voltage lines are separated from one another and arranged symmetrically.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hyun-Tae

Classifications

• G09G2300/0852

  being a dynamic memory with more than one capacitor · CPC title

• G09G2300/043

  Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver · CPC title

• G09G2310/0251

  Precharge or discharge of pixel before applying new pixel voltage · CPC title

• G09G3/3225 Primary

  using an active matrix · CPC title

• G09G2310/0216

  Interleaved control phases for different scan lines in the same sub-field, e.g. initialization, addressing and sustaining in plasma displays that are not simultaneous for all scan lines · CPC title