DATA SHEET
TFT COLOR LCD MODULE
NL6448BC33-31
26 cm (10.4 inches), 640
×
480 pixels, 262,144 colors,
Incorporated two-lamp/Edge-light type backlight
Wide viewing angle
DESCRIPTION
NL6448BC33-31 is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) comprising
amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. NL6448BC33-31 has a
built-in backlight. Backlight includes long-life-lamps and the lamps are replaceable.
The 26 cm (10.4 inches) diagonal display area contains 640
×
480 pixels and can display 262,144 colors
simultaneously.
NL6448BC33-31 is suitable for industrial application use because of the wide viewing angle and the high
luminance. Also, the viewing direction is selectable either upper or lower side by changing scan direction.
NL6448BC33-31 interface is compatible with NL6448AC33-18, -18A, -18B and -27.
FEATURES
• Wide viewing angle (with Retardation Film)
• Smooth polarizer surface (No antiglare treatment)
• High luminance (350 cd/m , typ.: saturated value, at
room temp.)
• Low reflection
• 6-bit digital RGB signals
• Data enable function
• Backlight with two long-life-time lamps (one lamp
holder, inverter-less)
2
• Lamp holder replaceable (Type No.: 104LHS31)
• Reversible scan direction (with DPS pin)
• Replaceable lamp holders (Type No.: 104LHS31)
• Recommended inverter (Part No.: 104PWRI)
• Best viewing angle select function (with MVA terminal)
• Luminance control
• Easy to attach a touch panel
APPLICATIONS
• Display terminals for control system
• Monitors for process controller
• Industrial PCs
The information in this document is subject to change without notice.
Document No. EN0443EJ1V0DS00 (1st edition)
Date Published July 1999 P
Printed in Japan
©
1999
NL6448BC33-31
STRUCTURE AND FUNCTIONS
A color TFT (thin film transistor) LCD module is comprised of a TFT liquid crystal panel structure, LSIs for driving
the TFT array, and a backlight assembly. The TFT panel structure is created by sandwiching liquid crystal material
in the narrow gap between a TFT array glass substrate and a color filter glass substrate. After the driver LSIs are
connected to the panel, the backlight assembly is attached to the backside of the panel.
RGB (red, green, blue) data signals from a source system is modulated into a form suitable for active matrix
addressing by the onboard signal processor and sent to the driver LSIs which in turn addresses the individual TFT
cells.
Acting as an electro-optical switch, each TFT cell regulates light transmission from the backlight assembly when
activated by the data source. By regulating the amount of light passing through the array of red, green, and blue
dots, color images are created with clarity.
OUTLINE OF CHARACTERISTICS (at room temperature)
Display area
Drive system
Display colors
Number of pixels
Pixel arrangement
Pixel pitch
Module size
Weight
Contrast ratio
211.2 (H)
×
158.4 (V) mm
a-Si TFT active matrix
262,144 colors
640
×
480 pixels
RGB vertical stripe
0.33 (H)
×
0.33 (V) mm
243.0 (H)
×
185.1 (V)
×
10.75 typ. (D) mm
530 g (typ.)
300 : 1 (typ.)
Horizontal : 50° (typ., left side, right side)
Vertical
Designed viewing direction
: 40° (typ., up side), 45° (typ, down side)
down side (6 o’clock reverse scan)
Wider viewing angle with contrast ratio
Optimum grayscale (
γ
= 2.2)
Polarizer pencil-hardness 2H (Min., at JIS K5400)
Color gamut
Response time
Luminance
Signal system
Supply voltages
Backlight
43% (typ. at center, to NTSC)
15 ms (typ.), white to black
350 cd/m
2
(TYP)
6-bit digital signals for each of RGB primary colors, synchronous signals
(Hsync, Vsync), dot clock (CLK)
3.3 V [5.0 V] (Logic, LCD driving), 12.0 V (Backlight)
Edge light type, two cold cathode fluorescent lamps (cold cathode type)
[Replaceable parts]
Lamp holder: type No.104LHS31
Power consumption
6.8 W (typ., at 3.3 V, 12.0 V)
: down side (6 o’clock normal scan)
up side (12 o’clock reverse scan)
: perpendicular
Wider viewing angle without image reversal : up side (12 o’clock normal scan)
Viewing angle (more than the contrast ratio of 10 : 1)
2
Data Sheet EN0443EJ1V0DS00
京公网安备 11010802033920号
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