DATA SHEET
TFT COLOR LCD MODULE
NL10276AC28-01A
36 cm (14.1 inches), 1,024
×
768 pixels, Full-color,
Multi-scan Function
Incorporated backlight with inverter
DESCRIPTION
NL10276AC28-01A 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. NL10276AC28-01A has
a built-in backlight with an inverter.
The 36 cm (14.1 inches) diagonal display area contains 1,024
×
768 pixels and can display full-color (more than
16 million colors simultaneously). Also, it has multi-scan function.
NL10276AC28-01A is a model which mounted the CRT interface board on NL10276AC28-01.
FEATURES
• High luminance (200 cd/m
2
, TYP.)
• Low reflection
• CRT interface board
• Auto recognition of input signal (Analog RGB signals, Synchronous signals (Hsync, Vsync, Composit))
• Digital control: e.g., Brightness, Display position
• Free supply voltage sequence
TM
• Corresponding to DDC 1 and DDC2B
• Corresponding to VESA
TM
, DPMS
TM
• Multi-scan function: e.g., XGA, SVGA, VGA, VGA-TEXT, PC-9801, MAC
• Incorporated edge type backlight with an inverter (Two lamps into two lamp holders)
• Lamp holder replaceable (Part No.: 141LHS-1)
VESA : Video Electronics Standards Association
DPMS : Display Power Management Signaling
DDC1 : Display Data Channel 1
DDC2B : Display Data Channel 2B
All trademarks used within this document are the property of their respective owners. VESA, DDC, DPMS and
EDID are trademarks of the Video Electronics Standard Association.
APPLICATIONS
Desk-top type of PC
Engineering work station
The information in this document is subject to change without notice.
Document No. EN0375EJ1V0DS00 (1st edition)
Date Published December 1998 P
Printed in Japan
©
1998
NL10276AC28-01A
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.
BLOCK DIAGRAM
I/F Board
LCD module
R
G
B
AMP
R
G
B
AIF
AMP
Hsync/Csync
Vsync
ONSTAT
OFFSTAT
STA[1...7]
SEL
UP
DOWN
RESET
BRT+, –
BRTSEL0:1
BRTH
BRTL
V
DD
(+12 V)
GND
Sync.
Division
PLL
CLK
Timing
Controller
Sync.
Serial
Controller
(Signal
recognition)
POWER
H-driver
ON/OFF
DC/DC
converter
12 V
3,072 lines
LCD panel
V-driver
768 lines
H: 1,024
×
3 (R,G,B)
V: 768
DC/DC
converter
Luminance
(on/off)
V
DD
B
(+12 V)
GNDB
Inverter
Backlight
Remark
Frame is not connected to GND and GNDB.
2
NL10276AC28-01A
OUTLINE OF CHARACTERISTICS (at room temperature)
Display area
Drive system
Display colors
Number of pixels
Pixel arrangement
Pixel pitch
Module size
Weight
Contrast ratio
285.696 (H)
×
214.272 (V) mm
a-Si TFT active matrix
Full-color
1,024
×
768 pixels
RGB vertical stripe
0.279 (H)
×
0.279 (V) mm
330.0 (H)
×
255.0 (V)
×
19.0 (TYP.) (D) mm
1,320 g (TYP.)
150 : 1 (TYP.)
Horizontal : 50° (TYP., left side, right side)
Vertical
Designed viewing direction
: 15° (TYP., up side), 30° (TYP., down side)
: down side (6 o’clock)
: down side 5° (TYP.)
Wider viewing angle with contrast ratio
Optimum grayscale (
γ
= 2.2)
Color gamut
Response time
Luminance
Signal system
Supply voltages
Backlight
Power consumption
35% (TYP., center, to NTSC)
15 ms (TYP.), white to black
200 cd/m (TYP.)
Analog RGB signals, Synchronous signals (Hsync and Vsync or Composit)
12 V (Logic/LCD driving), 12 V (Backlight)
Edge light type, two cold cathode fluorescent lamps with an inverter
17.5 W (TYP.)
2
Viewing angle (more than the contrast ratio of 10 : 1)
Wider viewing angle without image reversal : up side (12 o’clock)
3
NL10276AC28-01A
GENERAL SPECIFICATIONS
Item
Module size
Display area
Number of dots
Number of pixels
Dot pitch
Pixel pitch
Pixel arrangement
Display colors
Weight
Specification
330.0
±
0.5 (H)
×
255.0
±
0.5 (V)
×
20.0 (MAX.) (D)
285.696 (H)
×
214.272 (V)
1,024
×
3 (H)
×
768 (V)
1,024 (H)
×
768 (V)
0.093 (H)
×
0.279 (V)
0.279 (H)
×
0.279 (V)
RGB (Red, Green, Blue) vertical stripe
full color
1,380 (MAX.)
Unit
mm
mm
dot
pixel
mm
mm
–
color
g
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Symbol
V
DD
V
DD
B
Logic input voltage
R,G,B input voltage
BRTL input voltage
Storage temp.
Operating temp.
Humidity
V
IN1
V
IN2
V
IN4
T
ST
T
OP
–
–
–
Rating
–0.3 to +14
–0.3 to +14
–0.3 to +5.5
–4.0 to +4.0
–0.3 to +1.5
–20 to + 60
0 to 50
≤
95% relative humidity
≤
85% relative humidity
≤
(T
A
= 50°C, 85 % relative
humidity) Absolute humidity
Unit
V
V
V
V
V
°C
°C
–
–
–
Module surface
Note
T
a
≤
40°C
40 < T
a
≤
50°C
T
a
> 50°C
No condensation
–
T
a
= 25°C
V
DD
= 12 V
T
a
= 25°C
Remarks
Note
Measured at the display area
4
NL10276AC28-01A
ELECTRICAL CHARACTERISTICS
T
a
= 25°C
Parameter
Supply voltage
Symbol
V
DD
B
V
DD
Logic input Low voltage
Logic input High voltage
Logic output Low voltage 1
Logic output High voltage 1
Logic output Low current 1
Logic output High current 1
Logic output High current 2
V
IL
V
IH
V
OL1
V
OH1
I
OL1
I
OH1
I
OH2
MIN.
11.4
11.4
0
2.2
–
2.4
–
–1
–
TYP.
12.0
12.0
–
–
–
–
–
–
–
MAX.
12.6
12.6
0.8
5.25
0.4
–
1
–
50
Unit
V
V
V
V
V
V
mA
mA
mA
STA1-STA8, ONSTAT, OFFSTAT,
V
OH
= 4.45 V
DDCDAT
for backlight
for logic and LCD driving
Hsync/Csync, Vsync, UP, DOWN,
RESET, SEL, BRTSEL0, 1, BRT+,
BRT–, DDCCLK, DDCDAT, WPRT
CNTCLK, CNTDAT, CNTSTB,
DDCDAT
CNTCLK, CNTDAT, CNTSTB
Remarks
Logic output Low current 3
Logic output High current 3
Maximum amplitude
(white-black)
DC input level (black)
Supply current
Note
I
OL3
I
OH3
V
IRGB
–
–1
0
(black)
–0.5
–
–
–
–
3
–
0.7
(white)
+2.5
900
mA
mA
Vp-p
RGB input
V
IDCRGB
I
DD
B
–
710
V
mA
V
DD
B = 12.0 V
(MAX. Luminance)
V
DD
= 12.0 V
Power saving mode, V
DD
B = 12.0 V
Power saving mode, V
DD
= 12.0 V
I
DD
I
DD
B
I
DD
–
–
–
750
1
60
1100
10
300
mA
mA
mA
Note
Checkered flag pattern
5
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