Patent ID: 6335150
Filing Date: 2002-01-01
Classification: C03C,G02F

Abstract:
A Manufacturing method for reflecting panel of reflective liquid crystal display, comprising steps of:first step of spraying photoresistor: spraying a photoresistor layer onto a top face of a substrate material; second step of exposure: preheating the glass substrate material sprayed with the photoresistor layer in first step, then the top face of the substrate material being covered by a photomask and exposed to UV light, the photomask having multiple perforations with predetermined shapes, whereby the photoresistor layer is exposed to form multiple exposed sections and multiple not exposed sections with predetermined shapes; third step of incomplete development/etching: immersing the semiproduct of reflecting panel exposed in second step into an etchant, whereby the multiple exposed sections or multiple not exposed sections of the photoresistor layer are incompletely developed/etched, the exposed sections or not exposed sections being etched by the etchant and thinned downward to form multiple rough etched bottom faces without touching the substrate material, while the multiple not exposed sections or exposed sections being not developed/etched by the etchant, in the third step, the developing/etching time being such controlled as to achieve insufficient development and incomplete etching and provide a rough spreading etching effect; fourth step of heat-treatment: heat-treating the reflecting panel incompletely developed/etched in the third step so as to soften the top sections of the not exposed sections into dome-like face, whereby each of the not exposed sections is formed as a micro-mirror face protuberance; and fifth step of precipitating metal layer: precipitating a metal film with very thin thickness onto the top face of the photoresistor layer heat-treated in the fourth step for reflecting light beam, the metal film having multiple spreading faces on the etched bottom faces, the multiple spreading faces having the same roughness as the etched bottom faces, the metal film also having multiple micro-mirror faces on the micro-mirror face protuberances.