USRE41176EExpiredUtility

Liquid crystal display device having electrodes connected at a location close to an outside edge of a contact hole

42
Assignee: RICOH KKPriority: Jan 8, 1997Filed: Mar 6, 2003Granted: Mar 30, 2010
Est. expiryJan 8, 2017(expired)· nominal 20-yr term from priority
Inventors:Toshio Oh-Ide
G02F 1/13452G02F 1/1333G02F 1/1345G02F 1/1339
42
PatentIndex Score
2
Cited by
8
References
35
Claims

Abstract

A liquid crystal display device including a first substrate having a contact hole and second substrate substantially in parallel with the first substrate. Each substrate has electrodes on an inner side thereof with the electrodes of the first substrate being connected to the electrodes of the second substrate at a location which is close to an edge of the contact hole.

Claims

exact text as granted — not AI-modified
1. A liquid crystal display device, comprising:
 a first transparent substrate having a contact hole;  
 a second transparent substrate spaced apart substantially in parallel from said first transparent substrate to form a gap;  
 a liquid crystal body filling the gap between said first transparent substrate and said second transparent substrate;  
 first driving electrodes on an inner side of said first transparent substrate;  
 second driving electrodes and connection electrodes on an inner side of said second transparent substrate; and  
 said contact hole configured to enable external electrodes to be connected to said second driving electrodes and said connection electrodes through said contact hole,  
 wherein said connection electrodes are connected to said first driving electrodes at a location close to an outside edge of said contact hole.  
 
     
     
       2. The liquid crystal display device of  claim 1 , wherein the location connecting said connection electrodes to said first driving electrodes is at a distance which is less than 4 mm from the outside edge of said contact hole. 
     
     
       3. The liquid crystal display device of  claim 1 , wherein said first transparent substrate and said second transparent substrate comprise a plastic film. 
     
     
       4. The liquid crystal display device of  claim 2 , wherein said first transparent substrate and second transparent substrate comprise a plastic film. 
     
     
       5. A liquid crystal display device, comprising:
 a first transparent substrate having a contact hole;  
 a second transparent substrate spaced apart substantially in parallel from said first transparent substrate to form a gap;  
 a liquid crystal body filling the gap between said first transparent substrate and said second transparent substrate;  
 first driving electrodes on an inner side of said first transparent substrate;  
 second driving electrodes and connection electrodes on an inner side of said second transparent substrate; and  
 said contact hole configured to enable external electrodes to be connected to said second driving electrodes and said connection electrodes through said contact hole,  
 wherein said connection electrodes are connected to said first driving electrodes at a location approximate to an outside edge of said contact hole to maintain a predetermined thickness of said gap between said first transparent substrate and said second transparent substrate.  
 
     
     
       6. The liquid crystal display device of  claim 5 , wherein the location connecting said connection electrodes to said first driving electrodes is at a distance which is less than 4 mm from the outside edge of said contact hole. 
     
     
       7. The liquid crystal display device of  claim 5 , wherein said first transparent substrate and said second transparent substrate comprise a plastic film. 
     
     
       8. The liquid crystal display device of  claim 6 , wherein said first transparent substrate and second transparent substrate comprise a plastic film. 
     
     
       9. A liquid crystal display device, comprising:
 a first transparent substrate having a contact hole and first driving electrodes on an inner surface thereof;  
 a second transparent substrate spaced apart substantially in parallel from said first transparent substrate to form a cell gap, said second transparent substrate having second driving electrodes on an inner surface thereof;  
 a liquid crystal body filling the gap between said first transparent substrate and said second transparent substrate;  
 said contact hole configured to allow external electrodes to be connected to said second driving electrodes through said contact hole; and  
 means for connecting said first driving electrodes to said second driving electrodes at a location approximate to an outside edge of said contact hole so as to maintain a predetermined cell gap thickness.  
 
     
     
       10. The liquid crystal display device of  claim 9 , wherein the means for connecting connects the first driving electrodes and the second driving electrodes at a location which is less than 4 mm from the outside edge of said contact hole. 
     
     
       11. The liquid crystal display device of  claim 9 , wherein said first transparent substrate and said second transparent substrate comprise a plastic film. 
     
     
       12. The liquid crystal display device of  claim 10 , wherein said first transparent substrate and second transparent substrate comprise a plastic film. 
     
     
       13. A display device, comprising:
   a first substrate having a contact hole;        a second substrate spaced apart substantially in parallel from said first substrate to form a gap;        first driving electrodes on an inner side of said first substrate;        second driving electrodes and connection electrodes on an inner side of said second substrate; and        said contact hole configured to enable external electrodes to be connected to said second driving electrodes and said connection electrodes through said contact hole,        wherein said connection electrodes are connected to said first driving electrodes at a location close to an outside edge of said contact hole.     
     
     
       14. The display device of  claim 13 , wherein the location connecting said connection electrodes to said first driving electrode is at a distance which is less than  4  mm from the outside edge of said contact hole. 
     
     
       15. The display device of  claim 14 , wherein said first substrate and second substrate comprise a plastic film. 
     
     
       16. The display device of  claim 13 , wherein said first substrate and said second substrate comprise a plastic film. 
     
     
       17. The display device of  claim 13 , wherein at least one of the first and second substrates is a transparent substrate. 
     
     
       18. The display device of  claim 13 , wherein the display device is a liquid crystal display device. 
     
     
       19. A display device, comprising:
   a first substrate having a contact hole;        a second substrate spaced apart substantially in parallel from said first substrate to form a gap;        first driving electrodes on an inner side of said first substrate;        second driving electrodes and connection electrodes on an inner side of said second substrate; and        said contact hole configured to enable external electrodes to be connected to said second driving electrodes and said connection electrodes through said contact hole,        wherein said connection electrodes are connected to said first driving electrodes at a location approximate to an outside edge of said contact hole to maintain a predetermined thickness of said gap between said first substrate and said second substrate.     
     
     
       20. The display device of  claim 19 , wherein the location connecting said connection electrodes to said first driving electrodes is at a distance which is less than  4  mm from the outside edge of said contact hole. 
     
     
       21. The display device of  claim 20 , wherein said first substrate and second substrate comprise a plastic film. 
     
     
       22. The display device of  claim 19 , wherein said first substrate and said second substrate comprise a plastic film. 
     
     
       23. The display device of  claim 19 , wherein at least one of the first and second substrates is a transparent substrate. 
     
     
       24. The display device of  claim 19 , wherein the display device is a liquid crystal display device. 
     
     
       25. A display device, comprising:
   a first substrate having a contact hole and first driving electrodes on an inner surface thereof;        a second substrate spaced apart substantially in parallel from said first substrate to form a cell gap, said second substrate having second driving electrodes on an inner surface thereof;        said contact hole configured to allow external electrodes to be connected to said second driving electrodes through said contact hole; and        means for connecting said first driving electrodes to said second driving electrodes at a location approximate to an outside edge of said contact hole so as to maintain a predetermined cell gap thickness.     
     
     
       26. The display device of  claim 25 , wherein the means for connecting connects the first driving electrodes and the second driving electrodes at a location which is less than  4  mm from the outside edge of said contact hole. 
     
     
       27. The display device of  claim 26 , wherein said first substrate and second substrate comprise a plastic film. 
     
     
       28. The display device of  claim 25 , wherein said first substrate and said second substrate comprise a plastic film. 
     
     
       29. The display device of  claim 25 , wherein at least one of the first and second substrates is a transparent substrate. 
     
     
       30. The display device of  claim 25 , wherein the display device is a liquid crystal display device. 
     
     
       31. A display device, comprising:
   a first substrate having a contact hole;        a second substrate spaced apart substantially in parallel from said first substrate;        first driving electrodes on an inner side of said first substrate;        second driving electrodes and connection electrodes on an inner side of said second substrate; and        said contact hole configured to enable external electrodes to be connected to said second driving electrodes and said connection electrodes through said contact hole,        wherein said connection electrodes are connected to said first driving electrodes at a location close to an outside edge of said contact hole.     
     
     
       32. The display device of  claim 31 , wherein the location connecting said connection electrodes to said first driving electrodes is at a distance which is less than  4  mm from the outside edge of said contact hole. 
     
     
       33. The display device of  claim 31 , wherein said first substrate and said second substrate comprise a plastic film. 
     
     
       34. The display device of  claim 31 , wherein at least one of the first and second substrates is a transparent substrate. 
     
     
       35. The display device of  claim 31 , wherein the display device is a liquid crystal display device.

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