Organic light emitting display apparatus

Patent metadata

Field	Value
Publication number	US-2016240601-A1
Application number	US-201514882859-A
Country	US
Kind code	A1
Filing date	Oct 14, 2015
Priority date	Feb 12, 2015
Publication date	Aug 18, 2016
Grant date	—

Abstract

An organic light emitting display apparatus includes a base substrate, an active pattern disposed on the base substrate, a data line disposed on the base substrate, and a driving voltage line disposed on the base substrate. The active pattern includes a first transistor including a source area, a drain area and a channel. The active pattern also includes a first capacitor area and a second capacitor area. The data line extends in a first direction. The data line is overlapped with the first capacitor area. The driving voltage line extends in a second direction substantially perpendicular to the first direction. The driving voltage line is overlapped with the second capacitor area.

First claim

What is claimed is:

1 . An organic light emitting display apparatus comprising:
a base substrate; an active pattern disposed on the base substrate, the active pattern comprising:
a first transistor comprising a source area, a drain area and a channel,
a first capacitor area, and
a second capacitor area;
a data line disposed on the base substrate, and extending in a first direction, the data line overlapped with the first capacitor area; and a driving voltage line disposed on the base substrate, and extending in a second direction substantially perpendicular to the first direction, the driving voltage line overlapped with the second capacitor area.

2 . The organic light emitting display apparatus of claim 1 , further comprising a first insulation layer disposed between the first capacitor area and the data line, and between the second capacitor area and the driving voltage line.

3 . The organic light emitting display apparatus of claim 1 , further comprising a first gate electrode overlapping the channel of the first transistor, and
wherein the first insulation layer is disposed between the gate electrode and the channel of the first transistor.

4 . The organic light emitting display apparatus of claim 1 , further comprising a second insulation layer disposed between the first capacitor area and the data line, and between the second capacitor area and the driving voltage line.

5 . The organic light emitting display apparatus of claim 4 , wherein a portion of the driving voltage line is configured to overlap the first gate electrode, and
the second insulation layer is disposed between the portion of the driving voltage line.

6 . The organic light emitting display apparatus of claim 1 , wherein the driving voltage line and the data line include a same conductive layer.

7 . The organic light emitting display apparatus of claim 6 , further comprising:
a first gate electrode overlapping the channel of the first transistor; a scan line disposed on the base substrate and extending in a first direction, a data initialization line disposed on the base substrate and substantially parallel with the scan line; an initialization voltage line disposed on the base substrate and substantially parallel with the scan line; an emission control line disposed on the base substrate and substantially parallel with the scan line; and a bypass control line disposed on the base substrate and substantially parallel with the scan line.

8 . The organic light emitting display apparatus of claim 7 , further comprising an auxiliary driving voltage line disposed on the base substrate and substantially parallel with the scan line,
wherein the auxiliary driving voltage line is electrically connected to the driving voltage line.

9 . The organic light emitting display apparatus of claim 8 , wherein the first gate electrode, the scan line, the data initialization line, the initialization voltage line, the emission control line, the bypass control line and the auxiliary driving voltage line are formed on a same layer.

10 . The organic light emitting display apparatus of claim 7 , further comprising:
a first connecting portion electrically connecting the initialization voltage line to the active pattern; a second connecting portion electrically connecting the first gate electrode to the active pattern; and a third connecting portion electrically connecting the active pattern to a first electrode for driving an organic light emitting diode.

11 . The organic light emitting display apparatus of claim 1 , wherein the first capacitor area and the second capacitor area are electrically connected to the source area of the first transistor.

12 . The organic light emitting display apparatus of claim 11 , wherein the active pattern further comprises a second source area, a second drain area and a second channel of a second transistor,
the active pattern further comprises a third source area, a third drain area and a third channel of a third transistor, the active pattern further comprises a fourth source area, a fourth drain area and a fourth channel of a fourth transistor, the active pattern further comprises a fifth source area, a fifth drain area and a fifth channel of a fifth transistor, and wherein the first capacitor area and the second capacitor area of the active pattern are electrically connected to the second transistor and the fifth transistor.

13 . The organic light emitting display apparatus of claim 12 , wherein the first capacitor area and the second capacitor area are directly connected to the first source area, the second drain area and the fifth drain area.

14 . The organic light emitting display apparatus of claim 11 , wherein the active pattern further comprises a sixth source area, a sixth drain area and a sixth channel of a sixth transistor, and
wherein the active pattern further comprises a seventh source area, a seventh drain area and a seventh channel of a seventh transistor.

15 . The organic light emitting display apparatus of claim 1 , further comprising a data driving part configured to alternately output a first data signal and a second data signal to pixels different from each other in one horizontal period.

16 . An organic light emitting display apparatus, comprising a plurality of pixels, each of the pixels comprising:
an organic light emitting diode; a first transistor configured to operate the organic light emitting diode by generating a driving voltage, the first transistor comprising a first data signal electrode, a first connection electrode and a first gate electrode; a second transistor comprising:
a second data signal electrode to which a data signal is applied,
a second connection electrode which is electrically connected to the first data signal electrode, and
a gate electrode to which a scan signal is applied;
a storage capacitor formed between a first power voltage and the first gate electrode; a first capacitor formed between the data signal and the first data signal electrode; and a second capacitor formed between the first power voltage and the first data signal electrode.

17 . The organic light emitting display apparatus of claim 16 , further comprising a data driving part configured to alternately output a first data signal and a second data signal to pixels different from each other in one horizontal period.

18 . The organic light emitting display apparatus of claim 17 , further comprising:
a third transistor comprising a third gate electrode to which the scan signal is applied, a third gate signal electrode which is electrically connected to the first connection electrode, and a third connection electrode which is electrically connected to the first gate electrode; and a fourth transistor comprising a fourth gate electrode to which a data initialization signal is applied, a fourth data signal electrode to which an initialization voltage is applied, and a fourth connection electrode which is electrically connected to the first gate electrode.

19 . The organic light emitting display apparatus of claim 17 , further comprising:
a fifth transistor comprising a fifth gate electrode to which an emission signal is applied, a fifth data signal electrode to which the first power voltage is applied, a fifth connection electrode which is electrically connected to the first data signal electrode; a sixth transistor comprising a sixth gate electrode to which the emission signal is applied, a sixth data signal electrode which is electrically connected to the

Assignees

• Samsung Display Co Ltd

Inventors

• Kwon Sun-Ja
• Lee Ji-Eun

Classifications

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K59/123 Primary

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10D86/481

  integrated with passive devices, e.g. auxiliary capacitors · CPC title

• H10D86/451

  characterised by the compositions or shapes of the interlayer dielectrics · CPC title