LIQUID CRYSTAL DISPLAY DEVICE AND PRODUCTION THEREOF

• Main Authors: MIKAMI YOSHIAKI, KAWACHI GENSHIROU
• Format: Patent
• Language: English
• Published: 06.08.1999
• Edition: 6
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To produce a high-performance active matrix substrate on a light weight substrate by bonding a second substrate composed of the desired material such as plastics onto a TFT active matrix element and removing a first substrate later. SOLUTION: As an adhesive layer, epoxy resin is applied onto a TFT active matrix glass substrate produced by an ordinary method and further, a plastics substrate composed of polyester is bonded. Next, a glass substrate is ground and removed by making the plastics substrate being the base by chemical mechanical grinding. Next, the ground surface is coated with an orientated film ORI2 for orienting liquid crystal molecules and after burning, rubbing treatment is performed. Finally, on the other surface, a light proof film 512, color filter film 507 a counter electrode 510 made of ITO, a counter substrate 508 composed of plastics forming an orientated film ORI1, to which orientation processing is performed, and the previously formed TFT substrate are arranged while being opposed, a light crystal composition 506 is sealed among them and a liquid crystal cell using the plastics substrate is completed.