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NL6448AC20-06 Dataheets PDF



Part Number NL6448AC20-06
Manufacturers NEC
Logo NEC
Description LCD
Datasheet NL6448AC20-06 DatasheetNL6448AC20-06 Datasheet (PDF)

www.DataSheet4U.net DATA SHEET TFT COLOR LCD MODULE NL6448AC20-06 17 cm (6.5 type), 640 × 480 pixels 262144/4096 colors, incorporated edge-light type backlight high brightness, inverter separated from module DESCRIPTION NL6448AC20-06 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. NL6448AC20-06 has a builtin backlight. Backlight includes long-life-lamps and its.

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www.DataSheet4U.net DATA SHEET TFT COLOR LCD MODULE NL6448AC20-06 17 cm (6.5 type), 640 × 480 pixels 262144/4096 colors, incorporated edge-light type backlight high brightness, inverter separated from module DESCRIPTION NL6448AC20-06 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. NL6448AC20-06 has a builtin backlight. Backlight includes long-life-lamps and its lamps are replaceable. The 17cm diagonal display area contains 640 × 480 pixels and can display 4096 or 262144 colors simultaneously. NL6448AC20-06 is suitable for industrial application use, because the luminance is high, and the viewing direction is selectable by display scan select. FEATURES ™ High luminance (200 cd/m2 Typ.: saturated value) ™ Low reflection ™ Wide viewing angle with retardation film ™ Display reverse scan function ™ 6-bit/4-bit digital RGB signals ™ Edge type backlight with long-life-lamps (Two lamp holders, inverter) ™ Variable luminance control ™ Backlight lamp holder (65LHS-3L) replaceable ™ Compatible to the mounting hole position of NL6448AC20-02 except for inverter. APPLICATIONS ™ Measuring instruments ™ Display terminals for control system ™ New media ™ Control boards for NC machine ™ Monitor for process controller Document No. EN0323EJ1V0DS00 (1st edition) Date Published July 1997 M Printed in Japan www.DataSheet4U.net © 1997 www.DataSheet4U.net NL6448AC20- 06 STRUCTURE AND FUNCTIONS A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and a backlight. The TFT LCD panel is composed of a TFT array glass substrate superimposed on a color filter glass substrate with liquid crystal filled in the narrow gap between two substrates. The backlight apparatus is located on the backside of the LCD panel. RGB (Red, Green, Blue) data signals are sent to LCD panel drivers after modulation into suitable forms for active matrix addressing through signal processor. Each of the liquid crystal cells acts as an electro-optical switch that controls the light transmission from the backlight by a signal applied to a signal electrode through the TFT switch. BLOCK DIAGRAM H – driver R0 – R5 G0 – G5 B0 – B5 V – driver 480 lines 960 lines Digital signal processor Level shift TFT LCD panel H : 640 × 3 (RGB) V : 480 CLK Hsync Vsync DE DPS LCD timing controller 960 lines H – driver VCC Power supply circuit LSIs Drivers Backlight VDD Inverter BRTL BRTH GNDB GND(SG) Frame(FG) 2 www.DataSheet4U.net www.DataSheet4U.net NL6448AC20-06 OUTLINE OF CHARACTERISTICS (at room temperature) Display area Drive system Display colors Number of pixels Pixel arrangement Pixel pitch Module size Inverter size Weight Contrast ratio 132.48 (H) × 99.36 (V) mm a-Si TFT active matrix 262144 or 4096 colors 640 × 480 RGB vertical stripe 0.207 (H) × 0.207 (V) mm 178.8(H) × 126.8(V) × 11.0 Typ. (D) mm 26 (H) × 105 (V) × 9.5 Typ. (D) mm 237g (Typ.) + 17g (Typ., inverter) 150 : 1 (Typ.) Viewing angle (more than the contrast ratio of 10:1) • Horizontal : 50° (Typ. left side, right side) • Vertical : 35° (Typ. up side), 45° (Typ. down side) Designed viewing direction • wider viewing angle with contrast ratio : up side (12 o'clock, reverse scan) : down side (6 o'clock, normal scan) • wider viewing angle without image reversal : up side (12 o'clock, normal scan) : down side (6 o'clock, reverse scan) • optimum grayscale (γ = 2.2) : perpendicular Color gamut 45% (Typ. At center, To NTSC) Response time Luminance Signal system Supply voltage Backlight Power consumption 40ms (Max.), "white" to "black" 200cd/m2 (Typ.) 6-/4-bit digital signals for each of RGB primary colors, Synchronous signals (Hsync, Vsync), Dot clock (CLK) 5.0V (Logic, LCD driving), 5.0V (Backlight) Edge light type: two fluorescent lamps (cold cathode type) 6.0W (Typ.) www.DataSheet4U.net 3 www.DataSheet4U.net NL6448AC20-06 SUPPLY VOLTAGE SEQUENCE 4.75 V VCC 0V t<150 ms Signal 0V Power-on Power-off VALID 0


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