LG.Philips LCD LM220W1-A2MN Specification

Liqu id Crystal Display

Product General Specification

1. General Descriptions

The LM220W1 LCD is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL) back light system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 22.0 inch diagonally measured active display area with wide-SXGA resolution(1024 vertical by 1600 horizontal pixel array). Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes. Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,777,216 colors.

The LM220W1 has been designed to apply the TMDSTM(Transition Minimized differential Signaling) as the interface method to enables a simple and low -cost implementation in both the host and monitor.

The LM220W1 LCD is intended to support applications where high brightness, wide viewing angle, high color gamut, and high color depth are very important. In combination with the vertical arrangement of the sub - pixels, the LM220W1 characteristics provide an excellent flat panel display for office automation products such as monitors.

LM220W1

Host System

MDR 20PIN

Connector

TX0+/TX0-/SHIELD0 TX1+/TX1-/SHIELD1 TX2+/TX2-/SHIELD2 TXC+/TXC-/SHIELDC

HPD

+5V

DDC

EDID

PanelLink

SiI151

sync H

15PIN Connector

Microcontroller

MNT Logic

sync

VDD(15V) /

PWR_CTRL

RGB (48bit)

CLK,DTMG Hsync,Vsync

Power

Block

DPMS

PWR

TFT LCD Module

CTRL

RGB (48bit)

CTRL

Timing

Controller

RGB (48bit)

CTRL

Source Driver Circuit(Up)

SU1 SU7

Gate Driver circuit

TFT-LCD Panel

(1600 X 1024 pixels)

SD1 SD7

Source Driver Circuit(Down)

1. GND

2. PWR Ctrl

3. GND

4. PWR (15V)

5. PWR (15V)

6. GND

7. H

sync

8. V

sync

9. GND

10. NC

General Display Characteristics Followings are general features of the model LM220W1 LCD; Active display area 22.0 inches(56cm) diagonal Outsize dimensions 542.0w * 375.0h * 35.3t(typ)mm(Without Inverter) Pixel pitch 0.294 mm 0.294 mm Pixel format 1600 horiz. By 1024 vert. pixels RGB vertical stripe arrangement Color depth 8-bit, 16,777,216 colors Display operating mode transmissive mode, normally black

Surface treatments hard coating(3H), anti-glare treatment of the front polarizer Interface method TMDSTM interface using SiI151 chips and DFP connector Lamps Four CCFL(Cold Cathode Fluorescent Lamp)

Source Driver Circuit(Up)

TFT-LCD Panel

15PIN Connector

11. NC

12. +5V(DDC)

13. SDA

14. SCL

15. GND

Ver 1.2 MAY 15 , 2000 Page 1/7

Liqu id Crystal Display

Product General Specification

2. Electrical Specifications 2-1. Electrical Characteristics

The LM220W1 requires two power inputs. One input is employed to power the LCD electronics and to drive the voltages to drive the TFT array and liquid crystal. And the second input which powers the CCFL, is typically generated by an inverter. The inverter is an external unit to the LCD.

LM220W1

Parameter Symbol

MODULE: Power Sup ply Input Voltage Power Supply Input Current

Control Logic Input High Control Logic Input Low

Control Logic Output High Control Logic Output Low

LAMP (each CCFL)

Operating voltage Operating Current Established Starting Voltage at 25 at 0 Operating Frequency Discharge Stabilization time Life time

Notes: 1. The input current shall be measured at V

frequ ency of 112.2MHz under full white pattern(255gray).

2. The inverter should have symmetrical output voltage and current waveform because the performance of lamp is extremely influenced by the characteristics of it.

3. The values shall be measured at both end of lamp and are for reference for inverter design.

4. The value shall be measured at the ground cable and does not include loss of external inverter.

5. The lamp frequency shall be designed carefully to evade interference with Hsync frequency.

6. Ts is the time required for the brightness of the center of the lamp to be 95%. Assume the

brightness is 100% after operating 5minutes.

7. The life time is defined as the time at which brightness of lamp is 50% compare to that of initial

value at the typical lamp current on condition of continuous operating at 25 ± 2°C.

Table 1 Electrical Characteristics:

Values

Min. Typ. Max.

IBL

14.25

2.6

2.5

1070

3.0

1400 2100

15000

of 15.0Vdc at 25 , refresh rate of 60Hz, and pixel clock

15.0

0.8

860

8.0

20000

9.0

16.5

1.0

0.8

0.5

830

Units Notes

VDC

VDC VDC

RMS

KHz

minutes

hours

2 3 4 3

5 6

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18 19 20

Product General Specification

LM220W1

Liqu id Crystal Display

2-2. Interface Connections

Interface chip in host side, must be used TMDSTM, part No. SiI150, designed by Silicon Image Inc., or its equivalent.

This LCD employs three kinds of interface connections. A 20 pin connector called by DFP connector, is used for TMDS signals from the host computer. This connector is fully compatible with DFP standard. Please, refer to Digital Flat Panel(DFP ) standard for the detailed descriptions. A 15-pin connector is used for LCD module power and LCM controls signal from external monitor control circuits. And four connectors, a two pin connector, are used for the integral backlight system.

The pin configuration for the 20 pin DFP connector is shown in the table below.

Table 2 DFP CONNECTOR PIN CONFIGURATION (DFP Standard)

Symbol Description

TX1+

TX1-

SHLD1

SHLDC

TXC+

TXC-

GND

+5V

Notes: 1. All shield pins and GND(ground) pin should be connected together and should also be connected

The following is a preliminary list of DFP compatible connectors.

Please, contact connector manufacturer for detail description of this connector.

2. This +5V is only for external monitor control circuits and directly connected to 15 pin connector.

3. This pin is internally connected to pin 8 (+5V) in LCM circuits. 4, 5. These pins are only for external monitor control circuits and directly connected to 15 pin

6. Refer to appendix 1 regarding TMDS signal mapping.

1. 3M - Mini Delta Ribbon(MDR) Connector .050” series

2. AMP

3. Molex

TMDS positive differential output (channel1) TMDS negative differential output (channel1) Shield for TMDS channel 1 Shield for TMDS clock TMDS positive differential output (reference clock) TMDS negative differential output (reference clock) Logic Ground Logic +5V Supply (See note 2) No Connection No Connection

to the LCD’s metal frame.

The specifications for this source are the same as those defined in the VESA DDC Standard V3.0(+5V 5%, 50mA minimum, 1.0A maximum).

connector.

a) Receptacle : P/N 10220-55G3 VC b) Plug : P/N 10120 -6000 EC

a) Receptacle : P/N 917738 -2 b) Plug : P/N 2-175677-2

a) Receptacle : P/N 52515-2011 b) Plug : P/N 52316 -2011

Symbol Description

11 12 13

16 17

DDC_DAT DDC_CLK

TX2+

TX2-

SHLD2 SHLD0

TX0+

TX0-

HPD

TMDS positive differential output (channel2) TMDS negative differential output (channel2) Shield for TMDS channel 2 Shield for TMDS channel 0 TMDS positive differential output (channel 0) TMDS negative differential output (channel 0) Logic Ground Hot Plug Detection (See note 3) DDC2B Data (See note 4) DDC2B Clock (See note 5)

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