IP Library Granted Patent US 7,317,433
Granted Patent B2
US 7,317,433 · App. 10/893,211 · Granted Jan 8, 2008

Circuit for driving an electronic component and method of operating an electronic device having the circuit

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Quick Facts
Patent No.
US 7,317,433
App. No.
10/893,211
Granted
Jan 8, 2008
Kind
B2
Abstract

In one embodiment, a circuit for driving an electronic component includes a first signal line and a first switch. The first switch is connected to the first signal line and is coupled to a first terminal of the electronic component. The first switch is configured to allow a state where the first signal line electrically floats. In another embodiment, a circuit for driving an electronic component includes a first switch and a second switch. In yet another embodiment, a method for using any or all of the circuits includes electrically floating a second terminal of the electronic component, a source/drain region of a field-effect transistor, or both. In yet a further embodiment, during a first time period having a first switch at a first setting and a second switch at a second setting. During a second time period, changing the first switch, the second switch, or both to different setting(s).

Claims (65)

1. A circuit for driving an electronic component, wherein the electronic component is a radiation-emitting electronic component or a radiation-responsive electronic component, and wherein the circuit comprises:

the electronic component including a first terminal and a second terminal;

a field-effect transistor comprising a first source/drain region and a second source/drain region, wherein the first source/drain region is connected to the first terminal of the electronic component; and

a first signal line connected to the second terminal of the electronic component or the second source/drain region of the field-effect transistor; and

a first switch, wherein:

the first switch is connected to the first signal line; and

the first switch is configured to allow a state where the first signal line electrically floats.

2. The circuit of claim 1 , wherein:

the field-effect transistor further comprises a gate dielectric and a gate electrode, wherein the gate electrode is coupled to a data line.

3. The circuit of claim 2 , further comprising a data holder unit having a first terminal and a second terminal, wherein:

the first terminal of the data holder unit is connected to the gate electrode; and

the second terminal of the data holder unit is coupled to the first source/drain region or the second source/drain region.

4. The circuit of claim 3 , wherein:

the first terminal of the first switch is connected to the second source/drain region and the second terminal of the data holder unit; and

a second terminal of the electronic component is connected to a second signal line.

5. The circuit of claim 3 , wherein:

the first terminal of the first switch is connected to a second terminal of the electronic component; and

the second source/drain region is connected to a second signal line.

6. The circuit of claim 1 , further comprising:

a second signal line; and

a second switch comprising a first terminal and second terminals, wherein:

the first terminal of the second switch is connected to the second signal line and coupled to a second terminal of the electronic component; and

the second switch is configured to allow connection of the first terminal of the second switch to at least one of the second terminals of the second switch.

7. The circuit of claim 1 , wherein the electronic component is an organic electronic component.

8. A circuit for driving an electronic component, wherein the electronic component is a radiation-emitting electronic component or a radiation-responsive electronic component, wherein the circuit comprises:

a first signal line;

a first switch comprising a first terminal and second terminals, wherein:

the first terminal of the first switch is connected to the first signal line and coupled to a first terminal of the electronic component; and

the first switch is configured to allow connection of the first terminal of the first switch to at least one of the second terminals of the first switch;

a second signal line; and

a second switch comprising a third terminal and fourth terminals, wherein:

the third terminal of the second switch is connected to the second signal line and coupled to a second terminal of the electronic component; and

the second switch is configured to allow connection of the third terminal of the second switch to at least one of the fourth terminals of the second switch.

9. The circuit of claim 8 , wherein the first switch, the second switch, or a combination thereof is configured to allow a state where the first signal line, the second signal line, or a combination thereof electrically floats.

10. The circuit of claim 8 , further comprising a field-effect transistor comprising a gate electrode, a gate dielectric layer, a first source/drain region, and a second source/drain region, wherein:

the gate electrode is coupled to a data line;

the first source/drain region is connected to a first terminal of the electronic component;

the second source/drain region is connected to the second signal line; and

the second terminal of the electronic component is connected to the first signal line.

11. The circuit of claim 10 , further comprising a data holder unit having a first terminal and a second terminal, wherein:

the first terminal of the data holder unit is connected to the gate electrode; and

the second terminal of the data holder unit is coupled to the first source/drain region or the second source/drain region.

12. The circuit of claim 8 , wherein the electronic component is an organic electronic component.

13. A circuit for driving an electronic component, wherein the electronic component is a radiation-emitting electronic component or a radiation-responsive electronic component, and wherein the circuit comprises:

a first signal line;

a first switch, wherein;

the first switch is connected to the first signal line and is coupled to a first terminal of the electronic component;

the first switch is configured to allow a state where the first signal line electrically floats;

a second signal line; and

a second switch comprising a first terminal and second terminals, wherein:

the first terminal of the second switch is connected to the second signal line and coupled to a second terminal of the electronic component; and

the second switch is configured to allow connection of the first terminal of the second switch to at least one of the second terminals of the second switch.

14. The circuit of claim 13 , further comprising a field-effect transistor comprising a gate electrode, a gate dielectric layer, a first source/drain region, and a second source/drain region, wherein:

the gate electrode is coupled to a data line; and

the first source/drain region is connected to a first terminal of the electronic component.

15. The circuit of claim 14 , further comprising a data holder unit having a first terminal and a second terminal, wherein:

the first terminal of the data holder unit is connected to the gate electrode; and

the second terminal of the data holder unit is coupled to the first source/drain region or the second source/drain region.

16. The circuit of claim 15 , wherein:

the first terminal of the first switch is connected to the second source/drain region and the second terminal of the data holder unit; and

a second terminal of the electronic component is connected to a second signal line.

17. The circuit of claim 15 , wherein:

the first terminal of the first switch is connected to a second terminal of the electronic component; and

the second source/drain region is connected to a second signal line.

18. The circuit of claim 13 , wherein the electronic component is an organic electronic component.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: LG CHEM, LTD.
Reel/Frame 050150/0482 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2005
From: DUPONT DISPLAYS, INC.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 015853/0121 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2004
From: CHEN, ZHINING; YU, GANG; STEVENSON, MATTHEW; ZHANG, WEIXIAO
To: DUPONT DISPLAYS, INC.
Reel/Frame 015473/0080 →