NEC NL10276AC28-02L Datasheet

DATA SHEET

NL10276AC28-02L

TFT COLOR LCD MODULE

36 cm (14.1 inches), 1024

××××

768 pixels,

Full-color, Ultra-wide viewing angle,

Multi-scan function, CRT interface board

DESCRIPTION

NL10276AC28-02L 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.
NL10276AC28-02L has a built-in backlight with an inverter.

The 36 cm (14.1 inches) diagonal display area contains 1024 × 768 pixels and can display full-color (more than
16 million colors simultaneously). Also, it has ultra wide viewing angle and multi-scan function. Therefore, we call
this module Super Fine TFT.

FEATURES

• Ultra-wide viewing angle and low reflection

• CRT interface board

Auto recognition of input signal:

Analog RGB signals, Synchronous signals (Hsync,

Vsyn, Composite)
Digital control: e.g. Brightness, Display Position
Free supply voltage sequence
Corresponding to DDCI and DDC2B
Corresponding to VESA DPMS

• Multi-scan function: e.g. XGA, SXGA, XGA, SVGA,
VGA, VGA-TEXT, MAC

• Incorporated edge type backlight (Four lamps into
two lamp holders, Inverter)

• Lamp unit replaceable
(note)

VESA :
DPMS : Display Power Management Signaling
DDC1 : Display Data Channel 1
DDC2B: Display Data Channel 2B

Video Electronics Standards Associ ation

APPLICATIONS

• Desk-top type of PC

• Engineering workstation

• Display terminals for control system

• Monitors for process controller

On Screen Display

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 responsible for any trouble.

The information in this document is subject to change without notice.

Please confirm with the delivery specification before starting to design the system.

Document No. EN0456EJ1V0DS00 (1st edition)
Date Published December 1999 P
Printed in Japan

1999©

NL10276AC28-02L

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 285.696 (H) × 214.272 (V) mm
Drive system a-Si TFT active matrix
Display colors Full-color
Number of pixels 1024 (H) × 768 (V)
Pixel arrangement RGB vertical stripe
Pixel pitch 0.279 (H) × 0.279 (V) mm
Module size 330.0 (H) × 255.0 (V) × 23.3 (D) mm (typ.)
Weight 1530 g (typ.)
Contrast ratio 150:1 (typ.)
Viewing angle (more than the contrast ratio of 10:1)

Horizontal: 85° (typ., left side, right side)

•

Vertical : 85° (typ., up side, down side)

•

Designed viewing direction

Optimum grayscale (γ = 2.2): perpendicular

•

Color gamut 40% (typ., At center, To NTSC)
Response time 34 ms (typ.), “black 100%” to “white 10%”
Luminance 200 cd/m
Input signals Analog RGB signals, Synchronous signals (Hsync and Vsync or Composite)
Backlight Edge light type: Four cold cathode fluorescent lamps with an inverter

Lamp holder : 141LHS11

Inverter : 150PW011
Supply voltage 12 V, 12 V (Logic/LCD driving, Backlight)
Power consumption 25.1 W (typ.)

2

(typ.)

2

Data Sheet EN0456EJ1V0DS00

BLOCK DIAGRAM

NL10276AC28-02L

I/F

HS/CS

Vsync

LEDON

LEDOFF

SEL

UP

DOWN

EXIT

LEFT

RIGHT

RESET

MENUSEL

V

(+12 V)

LCD module

R
G
B

Sync.
Signal

Signal
recognition

DD

PLL

OSD

Control
signal

Control
signal

CLK

Timing
Controller

ON/OFF

AIF

DC/DC
converter

AMP

V-driver

H-driver

3840 lines

LCD panel

1024 lines

H: 1280 × 3 (R, G, B)
V: 1024

DDB

V

(+12 V)

GNDB

GND

Inverter

Backlight

HS : Hsync
CS : Composite synchronous signal

: Neither GND nor GNDB is connected to frame. These should be connected in customer

Note

equipment.

Data Sheet EN0456EJ1V0DS00

3

NL10276AC28-02L

SPECIFICATIONS

GENERAL SPECIFICATIONS

Item Contents Unit
Module size 330 ± 0.5 (H) × 255.0 ± 0.5 (V) × 24.5 (max.) (D) mm
Display area 285.696 (H) × 214.272 (V) mm
Number of dots 1024 × 3 (H) × 768 (V) dots
Pixel pitch 0.279 (H) × 0.279 (V) mm
Dot pitch 0.093 (H) × 0.279 (V) mm
Pixel arrangement RGB (Red, Green, Blue) vertical stripe –
Display colors Full color color
Weight 1,600 (max.) g

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Rating Unit Remarks

V
Logic input voltage V
R,G,B input voltage V

DD

V

DD

B –0.3 to + 14 V

In1

In2

–0.3 to + 14 VSupply voltage

–0.3 to + 5.5 V
–6.0 to + 6.0 V

a

T

= 25°C

a

T

= 25°C

DD

V

= 12 V

Storage temp. Tst –20 to + 60 °C –
Operating temp. Top 0 to 50 °C
Humidity

(no condensation)

Absolute humidity shall not exceed T

≤

95% relative humidity Ta ≤ 40°C

≤

85% relative humidity 40 < Ta ≤ 50°C

a

= 50°C,

Module surface

Ta > 50°C

85 % relative humidity) level.

Measured at the LCD panel (Including self-fever)

Note

Note

4

Data Sheet EN0456EJ1V0DS00

ELECTRICAL CHARACTERISTICS

(1) Logic, LCD driving, Backlight

Item Symbol Min. Typ. Max. Unit Remarks

DD

V

DD

B 11.4 12.0 12.6 V Backlight

V

Logic input “L” voltage V

Logic input “H” voltage V
Logic output “L” voltage V

Logic output “H” voltage V
Logic input “L” current I
Logic input “H” current I
Logic output “L” current 1 I
Logic output “H” current 1 I
Supply current

IL

IH

oL

oH

IL

IH

oL1

oH1

DD

DD

B

I

NL10276AC28-02L

11.4 12.0 12.6 V Logic and LCD drivingSupply voltage

0–0.8V

2.2 – 5.25 V
––0.4V

2.4 – – V

–1 – –

––1
––1

–1 – –

µ
µ
µ
µ

– 630 900 mA VDD = 12.0 VI
– 170 200 mA Power saving mode

– 1460 1600 mA VDDB = 12.0 V

– 0.3 10 mA Power saving mode

HS/CS, Vsync, SEL, UP, DOWN,
SEL, RESET, EXIT, RIGHT, LEFT,
DDCCLK, DDCDAT

DDCDAT

HS/CS, Vsync

A
A

DDCDAT

A
A

VDD = 12.0 V

(Max. luminance)

VDDB = 12.0 V

a

= 25°C)

(T

(2) Video signal (R, G, B) input

Item Min. Typ. Max. Unit Remarks

Maximum amplitude (white - black) 0

(black)

DC input level (black)

−

0.5 – +2.5 V –

Sync level 0.2 0.3 *B

0.7

(white)

*A V p-p

Vp-p G terminal

(0.6)

*A + *B – – 1.1 Vp-p –

Contrast adjustment is needed if the amplitude exceeds 0.7 Vp-p.

Note

Note

(sync on green)

a

= 25°C)

(T

Data Sheet EN0456EJ1V0DS00

5

NL10276AC28-02L

POWER SUPPLY DESIGN

(1) Please note that the supply voltage must not be applied while the control signals (SEL, UP, DOWN, EXIT,

LEFT, RIGHT and RESET) are connected to GND. Otherwise the module may cause malfunction.

(2) If the power supply voltage is applied while UP and DOWN are connected to GND, the input control signals

become ineffective mode. To reset this mode, turn off the power once and turn on the power while UP and
DOWN are connected to GND. Then, the mode will be released.

(3) Do not change MENUSEL setting while the module is operated.

MENUSEL selection (Hierarchical type or Toggle type) is set when the power supply voltage is applied.

(4) Inverter current wave

Inverter current wave is as follows.

1460 (mA)

0 (mA)

Duty

Luminance control frequency

maximum luminance control: 100 % (Duty)
minimam luminance control: 20 % (Duty)
Luminance control frequency Input Vsync frequency × K

=

Input Vsync frequency ≤ 75 Hz: K = 4.6
Input Vsync frequency > 75 Hz: K = 3.6

(5) Ripple of supply voltage

Please note that the ripple at the input connector of the module should be within the values shown in this
table. It the ripple is beyond these values, the noise may appear on the screen.

Acceptable range

The acceptable range of ripple voltage includes spike noise.

Note

DD

V

(for logic and LCD driver)

≤

100 mVp-p

DD

V

B

(for backlight)

≤

200 mVp-p

Example of the power supply connection

a) Separate the power supply b) Put the filter

Power VDD

Power VDDB

Power

Filter* VDD

Filter* VDDB

Filter* (reference value)

µ

L = 10

H to 100 µH

µ

C = 10

F to 100 µF

(6) VDDB should be started up within 300 ms, otherwise, the protection circuit makes the backlight turn off.

6

Data Sheet EN0456EJ1V0DS00

INTERFACE PIN CONNECTIONS

(1) Logic and LCD driving

CN1
Part No. : 1-353119-4
Adaptable socket: 1-353068-4
Supplier : Japan AMP Ltd.

NL10276AC28-02L

Pin No. Symbols Pin No. Symbol s

1B8Vsync
2GND9GND
3G10HS/CS
4GND11GND
5 R 12 DDCCLK
6 GND 13 N.C.
7 GND 14 DDCDAT

Note 1:

N.C. (No connection) must be open.

CN3
Part No. : DF14A-25P-1.25H
Adaptable socket: DF14-25S-1.25C
Supplier : HIROSE ELECTRIC CO., LTD.

Pin No. Symbols Pin No. Symbol s

1 LEDON 14 EXIT
2LEDOFF15 GND
3 GND 16 N.C.
4N.C.17GND
5N.C.18GND
6 RIGHT 19 MENUSEL
7LEFT20N.C.
8 RESET 21 N.C.

9 N.C. 22 N.C.
10 GND 23 GND
11 SEL 24 N.C.
12 UP 25 N.C.
13 DOWN

Figure from socket view

······1 2 13 14

Figure from socket view

···12 2524

Note 1:

N.C. (No connection) must be open.

Data Sheet EN0456EJ1V0DS00

7

CN5
Part No. : IL-Z-8PL-SMTY
Adaptable socket: IL-Z-8S-S125C3
Supplier : Japan Aviation Electronics Industry Limited (JAE)

NL10276AC28-02L

Pin No. Symbols Pin No. Symbol s

1VDD5GND

2VDD6GND

3VDD7GND

4VDD8GND

(2) Backlight

CN201
Part No. : IL-Z-11PL-SMTY
Adaptable socket: IL-Z-11S-S125C3
Supplier : Japan Aviation Electronics Industry Limited (JAE)

Pin No. Symbols Pin No. Symbol s

1V

2V

3V

4 GNDB 10 N.C.

5 GNDB 11 N.C.

6 GNDB

DD

B 7 N.C.

DD

B 8 N.C.

DD

B 9 N.C.

Figure from socket view

·····87 21

Figure from socket view

···11 10 12

Note 1:

N.C. (No connection) must be open.

CN201

1

11

Rear view

1

14

1

25
8

1

CN1

CN3

CN5

8

Data Sheet EN0456EJ1V0DS00

NL10276AC28-02L

PIN FUNCTION

Symbol I/O Logic Description

HS/CS Input Negative Horizontal synchronous signal input or composite synchronous signal input

(TTL level), Positive/Negative auto recognition

Vsync Input Negative V ertical synchronous signal input (TTL level)

Positive/Negative auto recognition, Cl ock i nput f o r DDC1
R Input – Red v i deo si gnal input (0. 7 Vp-p, i nput impedanc e 75 Ω)
G Input – Green video signal input (0.7 Vp-p, input impedance 75 Ω)
B Input – Blue video signal input (0.7 Vp-p, input impedance 75 Ω)
LEDON Output Positive Indicator for LED power on

“H”: LED select, “L”: Other status
LEDOFF Output Positive Indicator for power save mode

“H”: Power mode select, “L”: Other status
DDCCLK Input Positive CLK for DDC2B
DDCDAT Input/

Output

SEL Input Negative

UP Input Negative Control signal (TTL level)

DOWN Input Negative Control signal (TTL level)

EXIT Input Negative Control f unct i on exit signal (TTL level)

RIGHT

Note1

LEFT

Note1

RESET

Note1

MENUSEL Input – OSD design select signal (TTL level)

Input Negative Control signal (TTL level)

Input – Control signal (TTL level)

Input – Control signal (TTL level)

Positive Data for DDC1/2B

read/write

Control function select signal (TTL level)

SEL is pulled up in the module.

Detail of the functions are mentioned in

“H” or “open”: SEL off, “L”: SEL on

The signal increases the value of the functions selected.

UP is pulled up in tha module.

“H” or “open”: UP off, “L”: UP on

The signal decreases the value of the functions selected.

DOWN is pulled up in the module.

“H" or “open”: DOWN off, “L” : DOWN on

EXIT is pulled up in the module.

“H" or “open”: EXIT off, “L”: EXIT on

The signal increases the value of the functions selected.

RIGHT is pulled up in the module.

“H” or “open”: RIGHT off, “L”: RIGHT on

The signal decreases the value of the functions selected.

LEFT is pulled up in the module.

“H” or “open”: LEFT off, “L”: LEFT on

The signal initializes the selected function.

RESET is pulled up in the module.

“H” or “open”: RESET off, “L”: RESET on

MENUSEL is pulled up in the module.

“H or open”: Hierarchical type

“L”: Toggle type

For detail, see

OSD MENU SELECT

CONTROL FUNCTIONS

.

.

Data Sheet EN0456EJ1V0DS00

9

NL10276AC28-02L

Symbol I/O Logic Description

DD

V
VDDB – – Power supply for backlight +12 V (±5%)
GND – – Ground for system
GNDB – – Ground for backlight

: This terminal becomes effective only when the value of Button Sel is 7.

Note 1

Detail of the functions is mentioned in

: Ground for system (GND) and backlight (GNDB) are not connected in the module.

Note 2

[OSD MENU SELECT]

OSD menu type Hierarchical type Toggle type

MENUSEL “H” or “open” “L”

How to adjust

– – Power supply for Logic and LCD driving +12 V (±5%)

INITIAL VALUE CHANGE FUNCTIONS

For details, see

FUCNTION

.

INITIAL VALUE CHANGE

For details, see

FUCNTION

.

INITIAL VALUE CHANGE

.

MENU

Auto Adjust

Brightness
Clock
Position
Contrast

: If OSD menu type is changed, the adjustment of the type becomes default value.

Note 1

Then, It takes 5 seconds to display the changed menu after the supply voltage is input again.
And, Indicator for both LEDON and LEDOFF are “ON” at one time during the 5 seconds.

: The Initial value of Contrast ratio is as follows.

Note 2

Hierarchical type: 128:1 (typ.)
Toggle type : 100:1 (typ.)

: On Screen Display

Note 3

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 responsible for any
trouble.

10

Data Sheet EN0456EJ1V0DS00

[Equivalent circuit]

Symbol I/O Equivalent circuit

NL10276AC28-02L

LEDON
LEDOFF

Output RN2306 (Toshiba)

<Example of LED circuit>

Or equivalent

LCD module Output

R (330 Ω)

LEDON
LEDOFF

R (330 Ω)

SEL
UP
DOWN
EXIT
RIGHT
LEFT
RESET

Output

LED

SW

Data Sheet EN0456EJ1V0DS00

11

INPUT SIGNALS
INPUT SYNCHRONOUS SIGNAL

This module is corresponding to the synchronous signals below.

NL10276AC28-02L

Auto recognition mode

Separate synchronous signal mode (HS, Vsync) Input Input Input or no input
Composite synchronous mode Input (cs) No input Input or no input
Sync. On Green mode No input No input Input
Power saving mode

: Power saving mode corresponds to VESA DPMA.

Note 1

: The module recognizes Sync on Green signal automatically, when the FUNC in SOG Sel of Sel Data is

Note 2

“Y”. Refer to

INITIAL VALUE CHANGE FUNCTION

HS/CS Vsync Sync. On Green

Input (HS) No input Input or No input

No input Input Input or no input
No Input No input No input

.

Synchronous signal

In case of Sync on Green mode, input signals (R, G, B, Sync on Green) must be inputted before power
on.

PRESET TIMING

The 14 types of display timing shown below are preset in this module. The input synchronous signals are

automatically recognized.

Preset

Display size

No.

1 640 × 400 56. 432 24.830 21.053 8 25 96 48 –,– *
2 640 × 480 59. 992 31. 469 25.175 2 33 96 48 –,– VGA
3 720 × 400 70. 087 31.469 28.322 2 35 108 45 +,– VGA TXT
4 800 × 600 60. 317 37. 879 40.000 4 23 128 88 +,+ V ESA
5 640 × 480 66. 667 35. 000 30.240 3 39 64 96 SonG Macintosh
6 640 × 480 75. 000 37. 500 31.500 3 16 64 120 –,– VESA
7 720 × 400 85. 039 37. 927 35.500 3 42 36 144 +,– VESA
8 640 × 480 85. 008 43. 269 36.000 3 25 48 112 –,– *

9 1024 × 768 60.004 48. 363 65.000 6 29 136 160 –,– VESA
10 800 × 600 75. 000 46. 875 49.500 3 21 80 160 +,+ VESA
11 832 × 624 74. 565 49. 735 57.283 3 39 64 224 SonG Mac i ntos h
12 800 × 600 85. 061 53. 674 56.250 3 27 64 152 +,+ *
13 1024 × 768 70.069 56. 476 75.000 6 29 136 144 +,+ VESA
14 1024 × 768 75.029 60. 023 78.750 3 28 96 176 +,+ VESA

Vsync

(Hz)

Hsync

(kHz)

SYSTEM

CLK

(MHz)

V

Pulse

(H)

V

B.Porch

(H)

H
Pulse
(CLK)

H

B.Porch

(CLK)

Sync

Logic

V, H

Remarks

* Out of specification.

12

Data Sheet EN0456EJ1V0DS00