NEC NL10276AC30-01A Datasheet

DATA SHEET

NL10276AC30-01A

TFT COLOR LCD MODULE

38 cm (15 inches), 1024

××××

768 pixels, Full-color,

Multi-scan Function, Built-in backlight with inverter

Ultra wide viewing angle

DESCRIPTION

NL10276AC30-01A 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, a CRT interface board and a backlight. NL10276AC30-01A 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 ultra-wide viewing angle and multi-scan function. Therefore, this module calls Super Fine TFT.

CRT interface board installed in this module allows you to achieve the LCD monitor with an analog RGB interface.

FEATURES

Ultra wide viewing angle

•

Multi-scan function

•

• e.g. XGA, SVGA, VGA, VGA-TEXT, PC9801, MAC

High luminance

•

Incorporated edge type backlight (Four

•

lamps into two lamp holders, Inverter) Lamp holder replaceable (Part No. 150LHS01)

•

On Screen Display

•

CRT interface board

•

• Auto recognition of input signal Analog RGB signals, Sync on green, Synchronous signals (HS, Vsync, Composite)

• Digital control: e.g. Brightness, Display position, Contrast,

CLK delay

• Free supply voltage sequence

• Corresponding to DDC1 and DDC2B

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

APPLICATIONS

• Engineering workstation (EWS), Desk-top type of PC

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

Document No. EN0417EJ1V0DS00 (1st edition) Date Published January 1999 P Printed in Japan

1999©

NL10276AC30-01A

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

R G

HS/CS

Vsync

LEDON

LEDOFF

LED00-12

SEL

DOWN

RESET

VOLSEL OSDSEL DDCCLK

DDCDAT

WPRT

BRTVOL

(+12 V)

CLK

POWC

LCD module

R G B

Timing Controller

ON/OFF

AMP

V-Driver

H-Driver

3072 lines

LCD panel

768 lines

H: 1024 × 3 (R, G ,B) V: 768

Backlight

I/F Board

AMP AIF

Sync. Division

Signal recognition

DC/DC Converter

PLL

OSD

Sync.

Sigma

Luminance

VDDB

(+12 V)

GNDB

GND

Frame is not connected to GND nor GNDB.

Note

(on/off)

DC/DC Converter

Inverter

Data Sheet EN0417EJ1V0DS00

NL10276AC30-01A

OUTLINE OF CHARACTERISTICS (at room temperature)

Display area 304.128 (H) × 228.096 (V) mm Drive system a-Si TFT active matrix Display colors Full-color Number of pixels 1024 × 768 Pixel arrangement RGB vertical stripe Pixel pitch 0.297 (H) × 0.297 (V) mm Module size 350.0 (H) × 265.0 (V) × 23.0 (D) mm (typ.) Weight 1480 g (typ.) Contrast ratio 150:1 (typ., perpendicular) Viewing angle (more than the contrast ratio of 10:1)

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

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

(typ.)

= 2.2)

Optimum grayscale perpendicular ( Polarizer pencil-hardness 3H (min., JISK5400) Color gamut 48 % (typ., At center, To NTSC) Response time 44 ms (typ.), “black” to “white” Luminance 180 cd/m Input signals Analog RGB, Vsync and HS Backlight Edge light type: Four cold cathode fluorescent lamps with an inverter

<Replacement parts> Inverter P/N: 150PW011

Lamp holder set P/N: 150LHS01 Supply voltage 12 V (typ.), 12 V (typ.) Power consumption 24.7 W (typ.)

Data Sheet EN0417EJ1V0DS00

NL10276AC30-01A

GENERAL SPECIFICATIONS

Item Contents Unit Module size 350.0 ± 0.6 (H) × 265.0 ± 0.6 (V) × 24.0 (max.) (D) mm Display area 304.128 (H) × 228.096 (V) mm Number of dots 1024 × 3 (H) × 768 (V) dots Pixel pitch 0.297 (H) × 0.297 (V) mm Dot pitch 0.099 (H) × 0.297 (V) mm Pixel arrangement RGB (Red, Green, Blue) vertical stripe – Display colors Full color color Weight 1,480 (typ.), 1600 (max.) g

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Rating Unit Remarks

B –0.3 to + 14 V

–0.3 to + 14 VSupply voltage

Logic input voltage VIN1 –0.3 to + 5.5 V R, G, B input voltage VIN2 –6.0 to + 6.0 V CLK input voltage VIN3 –7.0 to + 7.0 V Storage temp. T Operating temp. T Humidity

(no condensation)

–20 to + 60 °C –

0 to 50 °C

≤

95% relative humidity Ta ≤ 40°C

≤

85% relative humidity 40 < Ta ≤ 50°C

Absolute humidity shall not exceed Ta = 50°C,

85% relative humidity level.

Notes 1.

Measured at the LCD panel (Include own fever) No condensation

Ta = 25°C

= 12 V

Module surface

Ta > 50°C

Note 1

Data Sheet EN0417EJ1V0DS00

ELECTRICAL CHARACTERISTICS

(1) Logic, LCD driving, Backlight

Item Symbol Min. Typ. Max. Unit Remarks

B 11.4 12.0 12.6 V Backl i ght

Logic input “L” voltage V

Logic input “H” voltage V

Logic output “L” voltage VOL1 – – 0.4 V Logic output “H” voltage VOH1 2.4 – – V Logic input “L” current 1 I Logic input “H” current 1 I Logic output “L” current 1 I Logic output “H” current 1 I Supply current

iL1

iH1

oL1

oH1

(Dot-checked pattern)

11.4 12.0 12.6 V Logic and LCD drivingSupply voltage

0–0.8V

2.2 – 5.25 V

–1 – –

––1 ––1

–1 – –

– 660 850 mA – 45 65 mA Power saving mode

– 1400 1600 mA VDDB = 12.0 V

– 1 10 mA Power saving mode

HS/CS, Vsync, SEL, UP, DOWN, RESET, VOLSEL, DDCCLK, DDCDAT, OSDSEL, WPRT

LED00/01/02/10/11/12

µ µ µ µ

HS/CS, Vsync

A A

DDCDAT

A A

(Max. luminance)

NL10276AC30-01A

(Ta = 25°C)

= 12.0 V

B = 12.0 V

Note1

Pixel checkered pattern

Note

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

Item Min. Typ. Max. Unit Remarks

Maximum amplitude (white - black)

DC input level (black)

(black)

−

0.5 – +2.5 V –

0.7

(white)

*A Vp-p

Sync level 0.2 0.3 *B Vp-p G terminal

*A + *B

Note

Need to adjust contrast if the input level is beyond 0.7 Vp-p.

– – 1.1 Vp-p

Note

(sync on green)

(Ta = 25°C)

Data Sheet EN0417EJ1V0DS00

NL10276AC30-01A

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

The acceptable range of ripple voltage includes spike noises.

Note

(for logic and LCD driver)

≤

100 mVp-p

(for backlight)

≤

200 mVp-p

Example of the power supply connection to minimize the ripple voltage

a) Separate the power supply b) Put the filter

Power V

Power VDDB

Power

Filter V

Filter 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 NL10276AC30-01A

Customer’s power supply

(12 V)

To V

Rush current

GND

*Frequency: Vsync frequency × K*

Duty

Frequency*

*Vsync ≤ 75 Hz: K = 4.6 > 75 Hz: K = 3.6

Data Sheet EN0417EJ1V0DS00

NL10276AC30-01A

POWER SUPPLY SEQUENCE

There is no sequence among the synchronous signals, the video signals and the power supply. However, 12 V

for backlight should be started up within 80 ms, otherwise, the protection circuit makes the backlight turns off.

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

are connected to GND. Otherwise the module may cause malfunctions.

If the power supply voltage is applied while SEL and RESET is connected to GND, the mode is set into NEC factory mode. In this case, both LEDON and LEDOFF become “H”. Please do not use the module in this mode which may write over the default value. Please turn off the power supply immediately and turn on the power while SEL and RESET are connected to GND again. If the default value has been revised by accident, please follow the instruction below.

This mode can control Brightness and Contrast and OSD position. Factory Reset function is reset all values. But do not use the module in this mode which may write over the default values affect to the LCD internal operation. Please turn off the power immediately and turn on the power while SEL and RESET are connected to GND again. If the default value has been revised by accident, please select “Factory Reset” mode and press “Reset” key for over two seconds.

Functions Control contents How to reset Brightness Total Brightness and Sub Brightness for each RGB Press RESET key over 2 seconds Contrast Total Contrast and Sub Contrast for each RGB Press RESET key over 2 seconds LCD Data Color adjust VCO HDTV Select OSD position Change the OSD display position Factory Reset Above function values is reset to factory values. Press Reset key over 2 seconds. RESET RESET the NEC factory mode

Never select and adjust values Please go to the Factory reset.

−

Data Sheet EN0417EJ1V0DS00

INTERFACE AND PIN CONNECTION

(1) Interface signals, power supply

CN101 Part No. : 1-353119-4 Adaptable socket : 1-353068-04 Supplier : Japan AMP Ltd.

NL10276AC30-01A

Pin No. Symbol Pin No. Sym bol

1B8Vsync 2 B-GND 9 GND 3G10HS/CS 4G-GND11 GND 5 R 12 DDCCLK 6 R-GND 13 N.C. 7 GND 14 DDCDAT

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

Note

CN103 Part No. : DF14A-25P-1.25H Adaptable socket : DF14-25S-1.25C Supplier : HIROSE ELECTRIC CO., LTD.

Pin No. Symbol Pin No. Sym bol

1 LEDON 14 RESET 2LEDOFF15 GND 3GND16BRTVOL 4 LE D00 17 GND 5 LE D01 18 VOLSEL 6 LEDD02 19 OSDSEL 7 LE D10 20 WPRT 8 LE D11 21 N.C.

9 LE D12 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

N.C. (No connection)

Note

Data Sheet EN0417EJ1V0DS00

CN104 Part No. : IL-Z-8PL-SMTY Adaptable socket : IL-Z-8S-S125C3 Supplier : Japan Aviation Electronics Industry Limited (JAE)

NL10276AC30-01A

Pin No. Symbol Pin No. Sym bol

1VDD5GND

2VDD6GND

3VDD7GND

4VDD8GND

CN201 Part No. : IL-Z-11PL1-SMTY Adaptable socket : IL-Z-11S-S125C3 Supplier : Japan Aviation Electronics Industry Limited (JAE)

Pin No. Symbol Pin No. Sym bol

4 GNDB 10 N.C.

5 GNDB 11 N.C.

6 GNDB

B 7 N.C.

B 8 N.C.

B 9 N.C.

Figure from socket view

··· 12

Figure from socket view

·····11 10 2 1

Note

Rear view

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

CN201

CN101

CN103

25 8

CN104

Data Sheet EN0417EJ1V0DS00

NL10276AC30-01A

(2) Pin function

Symbol I/O Logic Description HS/CS Input Negative Horizontal synchronous signal or composite synchronous signal (TTL level),

Positive/Negative auto recognition

Vsync I nput Negative Vertical synchronous signal (TTL level)

Positive/Negative auto recognition, Cl ock i nput f o r DDC1 R Input – Red video signal (0.7 Vp-p, 75 Ω) G Input – Green v i deo signal (0.7 Vp-p, 75 Ω), Sync On Green input B Input – Blue video signal (0.7 Vp-p, 75 Ω) LEDON Output Pos itiv e Output terminal to light up LED

“H”: Power on

“L”: Power off LEDOFF Output Positive Output terminal to light up LED

“H”: Power save mode

“L”: Normal mode LED00 Output Positive LED01 Output Positive LED02 Output Positive LED10 Output Negative LED11 Output Negative LED12 Output Negative DDCCLK Input Positive CLK for DDC2B DDCDAT Input/

Output

SEL Input Negative Select signal for control functions (TTL level)

UP Input Negative Control si gnal (TTL level)

DOWN Input Negative Control signal (TTL level)

RESET Input Negative Control signal (TTL level)

BRTVOL Input – Luminance control terminal

VOLSEL Input – Luminance control select signal (TTL level)

OSDSEL Input –

WPRT Input Positive S elect signal for DDC

Positive Data fo r DDC1/ 2B

For details, see Equivalent circuit for LED and CONTROL FUNCTIONS

Read/write

“open”: SEL off, “L”: SEL on

For details, see

UP increases the value of the functions selected.

“open”: UP off, “L”: UP on

DOWN reduces the value of the functions selected.

“open”: DOWN off, “L”: DOWN on

RESET initializes the selected functions.

“open”: RESET off “L”: RESET on

For details, see.

VOLSEL is pulled up in the module.

For details, see

Display select signal (TTL level)

“open”: OSD display off (light on LED)

“L”: OSD display on (light off LED)

For details, see

“Open”: Reading mode, “L”: Writing mode

CONTROL FUNCTIONS

Luminance control select

CONTROL FUNCTIONS

Data Sheet EN0417EJ1V0DS00

+ 22 hidden pages