Improvements in or relating to liquid crystal displays

G - Physics – 02 – F

Patent

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G02F 1/1333 (2006.01)

Patent

CA 2306636

A custom made liquid crystal display is formed from a pre-manufactured liquid crystal display (10) by removing an excess region (23). The driver card (20) is cut along the line X-X and the excess TABs are disconnected from the conductive layer (18). Optionally, a narrow strip is removed from each of the polarising substrates (15, 16) between the lines (22, 25) to expose their associated glass plates (12, 13). A groove (32 - see Figure 10) is then cut into the exposed surface of each of the glass plates (12, 13) along the line X-X. Each glass plate (12, 13) is then fractured along the base of its groove (32) so that the excess region (23) is detached from the operative region (24). The cut edges of the glass plates (12, 13) are then sealed by applying a bead of ultra-violet curing adhesive. The processes of removing an excess region (23) by cutting the glass plates (12, 13) with a laser or by freezing the liquid crystal between the glass plates (12, 13) and machining through the glass plates (12, 13) are also described.

Un afficheur à cristaux liquides sur mesure est formé d'un afficheur à cristaux liquides préfabriqué (10), par le retrait d'une zone excédentaire (23). La carte d'attaqueur (20) est découpée le long de la ligne X-X et les pattes (TAB) excédentaires sont déconnectées de la couche conductrice (18). Eventuellement, une bande étroite est enlevée de chaque substrat de polarisation (15, 16) entre les lignes (22, 25), de sorte que leurs plaques de verre associées (12, 13) soient exposées. Une rainure (voir Figure 10) est ensuite découpée dans la surface exposée de chaque plaque de verre (12, 13), le long de la ligne X-X. Chaque plaque de verre (12, 13) est ensuite fracturée le long de la base de la rainure (32), de sorte que la zone excédentaire (23) se détache de la zone active (24). Les bords coupés des plaques de verre (12, 13) sont ensuite scellés par l'application d'une perle d'adhésif durcissant au rayonnement U.V. Des procédés de retrait de la zone excédentaire (23) par découpage des plaques de verre (12, 13) au laser ou par congélation du cristal liquide entre les plaques de verre (12, 13) et par usinage de ces dernières (12, 13) sont également décrits.

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