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Browse Prior Art Database

A Method of System Board Commonality to Support LVDS LCD Panel and Non-LVDS LCD Panel

IP.com Disclosure Number: IPCOM000123833D
Original Publication Date: 1999-May-01
Included in the Prior Art Database: 2005-Apr-05
Document File: 3 page(s) / 74K

Publishing Venue

IBM

Related People

Tsukamoto, S: AUTHOR [+2]

Abstract

Disclosed is a method of the system board which supports Low Voltage Differential Signaling (hereafter LVDS) LCD panel and non-LVDS LCD panel.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 86% of the total text.

A Method of System Board Commonality to Support LVDS LCD Panel and
Non-LVDS LCD Panel

   Disclosed is a method of the system board which supports
Low Voltage Differential Signaling (hereafter LVDS) LCD panel and
non-LVDS LCD panel.

   Fig. 1 shows the block diagram of the current method of
the supporting LVDS LCD panel and non-LVDS LCD panel by common
system board.  To support LVDS LCD panel, LVDS Transmitter is
required. LVDS Transmitter is one of the clock generator, therefore
LVDS transmitter requires the clean power line.  So LVDS transmitter
is included in the system board.  Fig. 1 (a) shows the supporting of
the non-LVDS LCD panel.  In this case, LVDS transmitter and the
connector for LVDS LCD panel are redundance.  Fig. 1 (b) shows the
supporting of the LVDS LCD panel, in this case, he connector for
non-LVDS LCD panel is redundance.

   Fig. 2 shows the block diagram of the new method of the
supporting LVDS LCD panel and non-LVDS LCD panel.  LCD signals are
classified to data signals (RGB 18bit) and control signals.  LCD
control signals of non-LVDS LCD panel are assigned to the opposite
side of the pin assignment of LVDS transmitter.  In the new method,
LCD control signals are assigned at the both side of the LCD RGB data
line (RGB 18bit).  LCD signals are not crossed on the LCD interface
flexible cable (Refer Fig. 2 (a) and (b)).  And LCD signals are
traced on the one layer of the LCD interface flexible cable, the
opposite layer is used as ground and p...