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NL10276AC30_03A Schematic ( PDF Datasheet ) - NEC

Teilenummer NL10276AC30_03A
Beschreibung TFT COLOR LCD MODULE
Hersteller NEC
Logo NEC Logo 




Gesamt 30 Seiten
NL10276AC30_03A Datasheet, Funktion
DATA SHEET
TFT COLOR LCD MODULE
NL10276AC30-03A
38 cm (15 inches), 1024 × 768 pixels,
FULL-COLOR, MULTI-SCAN FUNCTION
Wide viewing angle
DESCRIPTION
NL10276AC30-03A 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, a CRT interface board and a backlight.
NL10276AC30-03A has a built-in backlight with an inverter.
The 38cm(15” inches) diagonal display area contains 1024 × 768 pixels and can display full-color (more than 16
million colors simultaneously). Also, it has wide viewing angle and multi-scan function.
CRT interface board installed in this module allows you to achieve the LCD monitor with an analog RGB
interface.
FEATURES
High luminance
CRT interface board
Wide viewing angle
• Auto recognition of input signal
Multi-scan function: e.g., XGA, SVGA, VGA, VGA-
Analog RGB signals, Sync on green,
TEXT, PC-9801, MAC
Synchronous signals (Hsync, Vsync, Composite)
Incorporated edge type backlight (Two lamps into two • Digital control: e.g., Luminance, Display position
lamp holders, Inverter)
• Free supply voltage sequence
Lamp holder replaceable (Part No. 150LHS03)
• Corresponding to DDC1 and DDC2B
On Screen Display
• Corresponding to VESA DPMS
Regarding the use of OSD, please note that there is possibility of conflicts with a patent in Europe and the U.S.
Thus, if such conflict might happen when you use OSD, we shall not be resposible for any trouble.
VESA : Video Electronics Standards Association
DDC1 : Display Data Channel 1
DPMS: Display Power Management Signaling
DDC2B : Display Data Channel 2B
APPLICATIONS
• Desk-top type of PC
• Engineering work station
Document No. EN0418EJ1V0DS00 (1st edition)
Date Published January 1999 P
Printed in Japan
© 1999






NL10276AC30_03A Datasheet, Funktion
NL10276AC30-03A
POWER SUPPLY DESIGN
(1) Ripple voltage of the supply voltage
Please note that the ripple at the input connector of the module should be within the values shown in this table.
If the ripple would be beyond these values, the noise might appear on the screen.
Acceptable range
VDD
(for logic and LCD driver)
100 mVp-p
VDDB
(for backlight)
200 mVp-p
Note The acceptable range of ripple voltage includes spike noises.
Example of the power supply connection to minimize the ripple voltage
a) Separate the power supply
b) Put the filter
Power
Power
VDD
VDDB
Power
Filter
Filter
VDD
VDDB
(2) Current wave in the luminance control mode
In the luminance control mode, the rush current below flows into the inverter of the module. The duty cycle
varies from 100% through 20% depending on the luminance control level. This might cause the noise on the
screen. Please evaluate the appropriate value of the capacitor in the filter to eliminate the noise.
Filter
Inverter circuit of NL10276AC-03A
Customer’s power
supply
(12 V)
To VDD
Rush
current
GND
Duty
Frequency*
*Frequency:
Vsync frequency × K*
*Vsync 75 Hz: K = 4.6
> 75 Hz: K = 3.6
6 Data Sheet EN0418EJ1V0DS00

6 Page









NL10276AC30_03A pdf, datenblatt
EQUIVALENT CIRCUIT FOR LED
Symbol
LEDON
LEDOFF
LED00
LED01
LED02
I/O
Output
RN2306 (Toshiba)
Or equivalent
LED10
LED11
LED12
Output N-ch Open-drain Output
NL10276AC30-03A
Equivalent circuit
Output
Output
12 Data Sheet EN0418EJ1V0DS00

12 Page





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