JPH05250990
PURPOSE:To detect a defective part, and also heighten work efficiency by treating a pattern inspection on a back plate electrically in a back plate inspecting method for a display device where laterally symmetrical same electrodes are formed in multi-shape patterns. CONSTITUTION:Electrically conduct...
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creator | SUNAKAWA YOSHITAKA IMAI HIDETOMO YANAI TOSHIO |
description | PURPOSE:To detect a defective part, and also heighten work efficiency by treating a pattern inspection on a back plate electrically in a back plate inspecting method for a display device where laterally symmetrical same electrodes are formed in multi-shape patterns. CONSTITUTION:Electrically conductive rubber 8 having a common electrode 7 is connected to plural electrodes 4 where patterns are formed on a back plate substrate 1, and false signals 10 are inputted to the common electrode of the equipotential electrically conductive rubber, and the signals transmitted through back plate patterns 4 are detected by means of a selecting circuit 12, a differential Amp circuit 13 and a comparing circuit 14 arranged in the rear stage. The detected result is displayed by means of a display element 15. Thereby, the detection of a failure place becomes possible, and inputs of the selecting circuit 12 are also switched by means of a counter circuit 17 in synchronism with a reference clock signal, so that an inspecting time can be shortened significantly. |
format | Patent |
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CONSTITUTION:Electrically conductive rubber 8 having a common electrode 7 is connected to plural electrodes 4 where patterns are formed on a back plate substrate 1, and false signals 10 are inputted to the common electrode of the equipotential electrically conductive rubber, and the signals transmitted through back plate patterns 4 are detected by means of a selecting circuit 12, a differential Amp circuit 13 and a comparing circuit 14 arranged in the rear stage. The detected result is displayed by means of a display element 15. Thereby, the detection of a failure place becomes possible, and inputs of the selecting circuit 12 are also switched by means of a counter circuit 17 in synchronism with a reference clock signal, so that an inspecting time can be shortened significantly.</description><edition>5</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ; ELECTRICITY</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930928&DB=EPODOC&CC=JP&NR=H05250990A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930928&DB=EPODOC&CC=JP&NR=H05250990A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUNAKAWA YOSHITAKA</creatorcontrib><creatorcontrib>IMAI HIDETOMO</creatorcontrib><creatorcontrib>YANAI TOSHIO</creatorcontrib><title>JPH05250990</title><description>PURPOSE:To detect a defective part, and also heighten work efficiency by treating a pattern inspection on a back plate electrically in a back plate inspecting method for a display device where laterally symmetrical same electrodes are formed in multi-shape patterns. CONSTITUTION:Electrically conductive rubber 8 having a common electrode 7 is connected to plural electrodes 4 where patterns are formed on a back plate substrate 1, and false signals 10 are inputted to the common electrode of the equipotential electrically conductive rubber, and the signals transmitted through back plate patterns 4 are detected by means of a selecting circuit 12, a differential Amp circuit 13 and a comparing circuit 14 arranged in the rear stage. The detected result is displayed by means of a display element 15. 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CONSTITUTION:Electrically conductive rubber 8 having a common electrode 7 is connected to plural electrodes 4 where patterns are formed on a back plate substrate 1, and false signals 10 are inputted to the common electrode of the equipotential electrically conductive rubber, and the signals transmitted through back plate patterns 4 are detected by means of a selecting circuit 12, a differential Amp circuit 13 and a comparing circuit 14 arranged in the rear stage. The detected result is displayed by means of a display element 15. Thereby, the detection of a failure place becomes possible, and inputs of the selecting circuit 12 are also switched by means of a counter circuit 17 in synchronism with a reference clock signal, so that an inspecting time can be shortened significantly.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY |
title | JPH05250990 |
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