Control signal unit for a liquid crystal display and a method for fabricating the same

• US 20050157221A1
• Filed: 12/01/2004
• Published: 07/21/2005
• Est. Priority Date: 10/31/2000
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Dong-Gyu Kim
• Inventors: Kim, Dong-Gyu
• Granted Patent: US 7,081,939 B2
• Time in Patent Office: Days
• US Class Current: 349/43
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals
• CPC Class Codes: G02F 1/13458 Terminal pads
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/13629 Multilayer wirings
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1244 for preventing breakage, peeling or short circuiting
• CPC Class Codes: H01L 27/1288 employing particular masking sequences or specially adapted masks, e.g. half-tone mask

Abstract

A control signal unit includes a substrate, a signal line formed on the substrate, and an insulating layer covering the signal line. A contact hole exposes the signal line with a predetermined width. The contact hole has a lateral side bordering on the signal line. The lateral side of the contact hole is longer than the width of the contact hole. A subsidiary signal pad is connected to the signal line through the contact hole.

Claims

1-35. -35. (canceled)

36. A display device, comprising:

a first substrate having a plurality of gate lines and a plurality of data lines;

a plurality of thin film transistors electrically connected to the gate lines and the data lines;

a plurality of pixel electrodes electrically connected to the thin film transistors, respectively;

a plurality of gate driving ICs to output gate signals to the gate lines;

a plurality of data driving ICs to output data signals to the data lines;

a plurality of interconnection lines for applying gate control signals to at least one of the gate driving ICs; and

a black matrix overlapping at least one of the interconnection lines.

37. The display device of claim 36, further comprising:

a second substrate sitting opposite the first substrate,

wherein the black matrix is formed on the second substrate.

38. The display device of claim 36, further comprising:

a liquid crystal layer formed between the first substrate and the second substrate.

39. The display device of claim 36, further comprising:

a driving signal transmission film,

wherein at least one of the data driving ICs is mounted on the driving signal transmission film.

40. The display device of claim 39, wherein the driving signal transmission film outputs the gate control signals and the data signals to the interconnection lines and the data lines, respectively.