IP Library Granted Patent US 8,222,644
Granted Patent B2
US 8,222,644 · App. 12/637,658 · Granted Jul 17, 2012

Fan-out unit and thin-film transistor array substrate having the same

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Quick Facts
Patent No.
US 8,222,644
App. No.
12/637,658
Granted
Jul 17, 2012
Kind
B2
Abstract

A fan-out unit which can control a resistance difference among channels with efficient space utilization and a thin-film transistor (TFT) array substrate having the fan-out unit are presented. The fan-out unit includes: an insulating substrate; a first wiring layer which is formed on the insulating substrate and connected to a pad; a second wiring layer which is formed on the insulating substrate and connected to a TFT; and a resistance controller which is connected between the first wiring layer and the second wiring layer and includes a plurality of first resistors extending parallel to the first wiring layer and a plurality of second resistors extending perpendicular to the first resistors and alternately connecting to the first resistors, wherein the first resistors are longer than the second resistors.

Claims (30)

1. A fan-out unit comprising:

an insulating substrate;

a first wiring layer which is formed on the insulating substrate and connected to a pad;

a second wiring layer which is formed on the insulating substrate and connected to a thin-film transistor (TFT); and

a resistance controller which is connected between the first wiring layer and the second wiring layer and comprises a plurality of first resistors extending parallel to the first wiring layer and a plurality of second resistors extending perpendicular to the first resistors and alternately connected to the first resistors,

wherein the first resistors are longer than the second resistors, and

wherein the first wiring layer, the second wiring layer and the resistance controller are formed on a same layer.

2. The fan-out unit of claim 1 , wherein the resistance controller controls resistance by adjusting lengths of the first resistors.

3. The fan-out unit of claim 1 , wherein each of the second resistors connects two adjacent first resistors and the resistance controller controls resistance by adjusting a location of the second resistor connecting the first resistors.

4. The fan-out unit of claim 3 , wherein each of the second resistors is formed between two adjacent first resistors.

5. The fan-out unit of claim 3 , wherein the first resistors have equal lengths and are arranged parallel to each other.

6. The fan-out unit of claim 5 , wherein at least one second group resistor is separated from an end of a first group resistor.

7. The fan-out unit of claim 6 , wherein one of the second resistors connecting to an outermost first resistor is separated from an end of the first resistor.

8. A TFT array substrate comprising:

an insulating substrate; and

a fan-out unit,

wherein the fan-out unit comprises:

a first wiring layer which is formed on the insulating substrate and connected to a pad;

a second wiring layer which is formed on the insulating substrate and connected to a TFT; and

a resistance controller which is connected between the first wiring layer and the second wiring layer and comprises a plurality of first resistors extending parallel to the first wiring layer and a plurality of second resistors extending perpendicular to the first resistors and alternately connected to the first resistors,

wherein the first resistors are longer than the second resistors, and

wherein the first wiring layer, the second wiring layer and the resistance controller are formed on a same layer.

9. The TFT array substrate of claim 8 , wherein the resistance controller controls resistance by adjusting lengths of the first resistors.

10. The TFT array substrate of claim 8 , further comprising a gate line which is electrically connected to the second wiring layer and extends parallel to the first wiring layer.

11. The TFT array substrate of claim 8 , further comprising a data line which is electrically connected to the second wiring layer and extends parallel to the first wiring layer.

12. The TFT array substrate of claim 8 , wherein each of the second resistors connects two adjacent first resistors and the resistance controller controls resistance by adjusting a location of the second resistor connecting the first resistors.

13. The TFT array substrate of claim 12 , wherein the first resistors have equal lengths and are arranged parallel to each other.

14. The TFT array substrate of claim 13 , wherein at least one second resistor is separated from an end of one first resistor.

15. The TFT array substrate of claim 14 , wherein one of the second resistors connecting to an outermost first resistor is separated from an end of first resistor.

16. The TFT array substrate of claim 12 , wherein each of the second resistors is formed between two adjacent first resistors.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029008/0951 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2009
From: YANG, SUNG-HOON; KIM, SO-WOON; KIM, YEON-JU; LEE, SO-HYUN; LEE, KWANG-HOON; PARK, MUN-SOO; KIM, JUNG-HYEON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 023651/0598 →