Entrance intercom specific color panel module

• US 7,148,873 B2
• Filed: 01/20/2004
• Issued: 12/12/2006
• Est. Priority Date: 01/20/2004
• Status: Expired due to Fees

• Current Assignee: Wen-Hsiung Liu
• Original Assignee: Wen-Hsiung Liu
• Inventors: Liu, Wen-Hsiung
• Primary Examiner(s): CHANG, KENT WU
• Application Number:
  US10/759,063
• Publication Number:
  US 20050156866A1
• Time in Patent Office: 1,057 Days
• Field of Search: 345/102, 349/58, 349/61, 349/62, 349/70
• US Class Current: 345/102
• CPC Class Codes: G02F 1/133604 with lamps
• CPC Class Codes: G02F 1/133605 including specially adapted reflectors
• CPC Class Codes: G02F 1/133611 including means for improving the brightness uniformity
• CPC Class Codes: G02F 1/13454 Drivers integrated on the active matrix substrate G02F1/136277 takes precedence

Abstract

An entrance intercom specific color panel module provides higher lumens and more consistent brightness, lower production cost, upgraded image quality, longer service life, summary manufacturing process, easy assembly and fast replacement of parts, comprised of chip on glass (COG) LCD panel adapted with tape automated bonding (TAB) backlight module in direct light design including a reflector, a fluorescent lamp and a light guide plate; the reflector approximately in W-shape section, rectangular plastic sheet provided with a recess to accommodate the lamp; the light guide plate made of transparent acrylic material being adhered to the surface of the reflector, an arc diffuser being provided on the bottom of the light guide plate at where in relation to the area of the light tube; on the top of the light guide plate being bonded to the back of the LCD panel.

Claims

1. An entrance intercom specific color panel module comprised of a COG type LCD panel adapted with a TAB type backlight module;

the backlight module being direct light design to include a reflector, a fluorescent lamp and a light guide plate;

a lamp chamber being formed in recess inside the reflector to accommodate the lamp, a side lid protruding by the side of the reflector, a lip being each provided to the edges of the remaining sides of the reflector to reserve a filling space inside the reflector of the same size as that of the light guide plate and the LCD panel to accommodate both is characterized by that the peripherals of the bottom and the top of the light guide plate being respectively to be bonded to the surface of the reflector and the back of the LCD panel.