Liquid crystal display and method for manufacturing the same
View Patent ↗Disclosed are a liquid crystal display (LCD) and a method for manufacturing the same, in which connection stability is improved when connecting a COG, A COF, or an FPC to a driving circuit. A substrate of the LCD has a display region and a non-display region at a peripheral area thereof. Terminals are provided to electrically connect an external circuit and a circuit of the display region and the non-display region. A flat protective layer is formed on the terminals. A plurality of pads are respectively formed of a first contact region and a flat second contact region, and each of the pads contacts a corresponding terminal, which is formed through a pad contact hold formed on the protective layer, at the first contact region, and each of the pads is electrically connected through an anisotropic conductive resin to a terminal of the external circuit by a pressing process at the flat second contact region.
1. A display panel, comprising:
a substrate;
a pixel formed in a display region of the substrate;
a terminal formed at a non-display region of the substrate and configured to apply an electrical signal to the pixel;
a protective layer formed on the terminal and having a contact hole on the terminal; and
a pad formed on the protective layer and overlapping the terminal,
wherein the pad includes a first contact region contacting the terminal through the contact hole and a second contact region defined as a region of the pad except the first contact region, and
wherein the second contact region is substantially larger than the first contact region.
2. The display panel of claim 1 , wherein the protective layer is an organic insulating layer.
3. The display panel of claim 2 , wherein an area of the first contact region is no more than one third of an area of the second contact region.
4. The display panel of claim 3 , wherein the pad is connected to the terminal that is formed at a lower portion of the protective layer through at least two contact holes.
5. The display panel of claim 4 , wherein the contact holes are arranged at both ends of the terminal in a longitudinal direction.
6. The display panel of claim 4 , wherein the contact holes are arranged at regular intervals in the longitudinal direction.
7. The display panel of claim 4 , wherein the contact holes are elongated and arranged at both ends of the terminal in a lateral direction.
8. The display panel of claim 2 , wherein the pad is connected to the terminal that is formed at a lower portion of the protective layer through at least two contact holes.
9. The display panel of claim 8 , wherein the contact holes are arranged at both ends of the terminal in a longitudinal direction.
10. The display panel of claim 8 , wherein the contact holes are arranged at regular intervals in the longitudinal direction.
11. The display panel of claim 8 , wherein the contact holes are elongated and arranged at both ends of the terminal in a lateral direction.
12. The display panel of claim 1 , wherein an area of the first contact region is no more than one third of an area of the second contact region.
13. The display panel of claim 12 , wherein the pad is connected to the terminal that is formed at a lower portion of the protective layer through at least two contact holes.
14. The display panel of claim 13 , wherein the contact holes are arranged at both ends of the terminal in a longitudinal direction.
15. The display panel of claim 13 , wherein the contact holes are arranged at regular intervals in the longitudinal direction.
16. The display panel of claim 13 , wherein the contact holes are elongated and arranged at both ends of the terminal in a lateral direction.
17. The display panel of claim 1 , wherein the pad is connected to the terminal that is formed at a lower portion of the protective layer through at least two contact holes.
18. The display panel of claim 17 , wherein the contact holes are arranged at both ends of the terminal in a longitudinal direction.
19. The display panel of claim 17 , wherein the contact holes are arranged at regular intervals in the longitudinal direction.
20. The display panel of claim 17 , wherein the contact holes are elongated and are arranged at both ends of the terminal in a lateral direction.