Electric contact apparatus for inspecting a liquid crystal display panel
AssigneeEnplas Corporation
InventorsYasushi Kajiwara, Michihiko Tezuka
Life of this patent
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Abstract
An electric contact apparatus has a flexible contact sheet 13. A plurality of conductive elements 14 are provided on a front side of the flexible contact sheet 13 and are arranged in parallel with each other along the direction of arrangement of electrodes 4 arranged on an insulating substrate 2 of a liquid crystal display panel 1 so as to be brought into contact with the electrodes 4, respectively. An internally sealed elastic tube 17 is supported in a groove 18 formed on one side of a pressing plate 11 and extends along the direction of arrangement of the conductive elements 14 so as to press a part of each contact region between the conductive elements 14 and the electrodes 4.
Claims14
An electric contact apparatus for engaging a liquid crystal display panel having a plurality of electrodes arranged in a direction on an insulating substrate, said electric contact apparatus comprising:
- at least one flexible contact sheet having an insulating film which has a front side and a back side and also having a plurality of elongate conductive films which are formed on only said front side of said insulating film and arranged in parallel with each other along the direction of arrangement of said electrodes so that said plurality of conductive films are brought into contact with said electrodes, respectively;
- a pressing plate, pressing at one side thereof at least a part of said back side of said insulating film of said flexible contact sheet against said insulating substrate to contact said conductive films of said flexible contact sheet with said electrodes;
- and
- means for locally increasing contact pressures at plurality of positions in each of a plurality of respective contact regions between said conductive films of said flexible contact sheet and said electrodes when said flexible contact sheet is pressed against said insulating substrate by said pressing plate.
Dependencies are inferred from the claim text.