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LM-230WF5-TLD1
Service manual
31 pgs1.27 Mb0

LG LM-230WF5-TLD1 Service manual

www.smarterglass.com
978 997 4104
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( ) Preliminary Specification (◆ ) Final Specification
Title 23” Full HD TFT LCD
LM230WF5
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
BUYER MODEL
SIGNATURE DATE
/
/
/
SUPPLIER LG Display Co., Ltd.
*MODEL LM230WF5
SUFFIX TLD1
*When you obtain standard approval, please use the above model name without suffix
APPROVED BY
K.G. PARK / G.Manager
REVIEWED BY
S.U.BYUN / Manager [C]
S.Y. AN / Manager [M]
C.S. SHIN / Manager [P]
PREPARED BY
S.J. Moon / Engineer
DATE
Please return 1 copy for your confirmation With your signature and comments.
Product Engineering Dept.
LG Display Co., Ltd
Product Specification
Contents
LM230WF5
Liquid Crystal Display
No ITEM
COVER 1 CONTENTS 2 RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5 3 ELECTRICAL SPECIFICATIONS 6
1) ELECTRICAL CHARACTERISTICS 6
2) INTERFACE CONNECTIONS 8
3) LVDS characteristics 11
4) SIGNAL TIMING SPECIFICATIONS 14
5) SIGNAL TIMING WAVEFORMS 15
6) COLOR INPUT DATA REFERNECE 16
7) POWER SEQUENCE 17
8) POWER DIP CONDITION 18
4 OPTICAL SPECIFICATIONS 19
Page
5 MECHANICAL CHARACTERISTICS 24 6 RELIABILITY 27 7 INTERNATIONAL STANDARDS 28
1) SAFETY 28
2) EMC 28
8 PACKING 29
1) DESIGNATION OF LOT MARK 29
2) PACKING FORM 29
9 PRECAUTIONS 30
1) MOUNTING PRECAUTIONS 30
2) OPERATING PRECAUTIONS 30
3) ELECTROSTATIC DISCHARGE CONTROL 31
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 31
5) STROAGE 31
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 31
Product Specification
Record of revisions
LM230WF5
Liquid Crystal Display
Revision No
Ver. 0.1
Ver. 0.2
Ver. 1.0
Date Page
Jun. 18, 2010
Aug. 04, 2010
Feb. 09, 2011
4 page
6 page
8 page
27 page
8 page
19 page
24,25 page
Description
First Draft, Preliminary Specifications.
Update the Power Consumption
Update the Electrical characteristics
Update the LED bar Electrical characteristics.
Update the International Standards.
Update the LED bar Electrical Characteristics (Min / Max).
Update the Color Coordinates.
Update the Rear View / Front View
Final Specification.
LM230WF5
Liquid Crystal Display
Product Specification
1. General description
LM230WF5-TLD1 is a Color Active Matrix Liquid Crystal Display Light Emitting Diode ( White LED) backlight system without LED driver. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. It has a 23 inch diagonally measured active display area with FHD resolution (1080 vertical by 1920 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 brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M colors with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that enables low power, high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is intended to support applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LM230WF5-TLD1 characteristics provide an excellent flat panel display for office automation products such as monitors.
FIG. 1 Block diagram
LVDS
pair #1
LVDS
pair #2
CN1
(30pin)
+5V VLCD
Timing
controller
Power circuit
block
RGB
FB 2ch
Source driver circuit
S1
G1
TFT-LCD Panel
(1920×RGB×1080 pixels)
G1080
Backlight assembly (Single LED Bar)
S1920
General features
Active screen size
Outline Dimension
Pixel Pitch 0.265mm x 0.265mm Pixel Format 1920 horizontal By 1080 vertical Pixels. RGB stripe arrangement
23 inches(58.42cm) diagonal(Aspect ratio 16:9)
533.2(H) x 312.0(V) x 10.2(D) mm(Typ.)
Interface LVDS 2Port Color depth 16.7M colors Luminance, white 250 cd/m2 ( Center 1Point, typ) Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.) Power Consumption Weight
Total 19.82W (Typ.), ( 6.0 W@V
1620 g (Typ.)
, 13.82 W@W/O_Driver)
LCD
Display operating mode Transmissive mode, normally White Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer
Product Specification
2. Absolute maximum ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. Absolute maximum ratings
LM230WF5
Liquid Crystal Display
Parameter Symbol
Units Notes
Min Max
Values
Power Supply Input Voltage V Operating Temperature T Storage Temperature T Operating Ambient Humidity H Storage Humidity H
LCD
OP
ST
OP
ST
-0.3 +6.0 Vdc At 25℃ 0 50
-20 60
°C °C
10 90 %RH 10 90 %RH
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 °C Max, and no condensation of water.
2. Maximum Storage Humidity is up to 40℃, 90% RH only for 4 corner light leakage Mura.
3. Storage condition is guaranteed under packing condition.
FIG. 2 Temperature and relative humidity
90%
60
60%
Wet Bulb Temperature [℃]
20
10
0
30
40
50
40%
Humidity [(%)RH]
10%
Storage
Operation
1,2,3
10 20 30 40 50 60 70 80 0 -20 Dry Bulb Temperature [℃]
LM230WF5
Liquid Crystal Display
Product Specification
3. Electrical specifications 3-1. Electrical characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second input power for the LED Backlight, is typically generated by an inverter. The LED driver is an external unit to the LCDs.
Table 2. Electrical characteristics
Parameter Symbol
Values
Unit Notes
Min Typ Max
MODULE : Power Supply Input Voltage V Permissive Power Input Ripple V
I
Power Supply Input Current
LCD-MOSAIC
I
LCD-BLACK
Power Consumption P Inrush current I
LCD
LCD
LCD
RUSH
4.5 5.0 5.5
- - 0.4
- 1200 1380
- 1400 1600
- 6.0 6.90
- - 3.0
Vdc
V 3 mA 1 mA 2
Watt 1
A 4
Note :
1. The specified current and power consumption are under the VLCD=5.0V, 25 2°C,fV=60Hz condition whereas mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
2. The current is specified at the maximum current pattern.
3. Permissive power ripple should be measured under VCC=5.0V, 25°C, fV (frame frequency)=75Hz condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under 20MHz.
4. The duration of rush current is about 2ms and rising time of power Input is 500us 20%.
FIG.3 pattern for Electrical characteristics
power consumption measurement
power input ripple
White : 255Gray Black : 0Gray
Mosaic Pattern(8 x 6)
Full Black Pattern
Product Specification
Table 3. LED bar Electrical characteristics
LM230WF5
Liquid Crystal Display
Parameter Symbol Condition
Unit Notes
Min. Typ. Max.
Values
LED : 1,7 LED String Current Is_peak - 120 125 mA 2,7 LED String Voltage Vs 54.0 57.6 61.2 V 3,7
Power Consumption
LED Life Time LED_LT 30,000 - - Hrs 5,7
PBar 12.96 13.82 14.69 Watt 4,6,7
LED driver design guide : The design of the LED driver must have specifications for the LED in LCD Assembly. The performance of the LED in LCM, for example life time or brightness, is extremely influenced by the characteristics of the LED driver. So all the parameters of an LED driver should be carefully designed and output current should be Constant current control. Please control feedback current of each string individually to compensate the current variation among the strings of LEDs.
When you design or order the LED driver, please make sure unwanted lighting caused by
the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs. When you confirm it, the LCD module should be operated in the same condition as installed in your instrument.
1. Specified values are for a single LED bar.
2. The specified current is input LED chip 100% duty current.
3. The specified voltage is input LED string and Bar voltage at typical 110 mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 110 mA 100% duty current.
5. The life is determined as the time at which luminance of the LED is 50% compared to that of initial value at the typical LED current on condition of continuous operating at 25 2°C.
6. The LED bar power consumption shown above does not include loss of external driver. The used LED bar current is the LED typical current. Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring
7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings at 25 2°C.
Liquid Crystal Display
Product Specification
3-2. Interface connections
LCD connector(CN1) : IS100-L30O-C23(UJU), GT103-30S-HF15-E2500 (LSM)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
LM230WF5
Pin No
1 2 3 4
5
6 7 8 9
10 11 12 13
14
15 16 17 18 19 20 21 22
23
24 25 26 27 28 29 30
Symbol Description
RXO0­ RXO0+ RXO1­ RXO1+
RXO2-
RXO2+ GND RXOC­ RXOC+ RXO3­ RXO3+ RXE0­ RXE0+
GND
RXE1­ RXE1+ GND RXE2­ RXE2+ RXEC­ RXEC+ RXE3-
RXE3+
GND NC NC NC VLCD VLCD VLCD
Minus signal of 1st channel 0 (LVDS) Plus signal of 1st channel 0 (LVDS) Minus signal of 1st channel 1 (LVDS) Plus signal of 1st channel 1 (LVDS) Minus signal of 1st channel 2 (LVDS) Plus signal of 1st channel 2 (LVDS) Ground Minus signal of 1st clock channel (LVDS) Plus signal of 1st clock channel (LVDS) Minus signal of 1st channel 3 (LVDS) Plus signal of 1st channel 3 (LVDS) Minus signal of 2nd channel 0 (LVDS) Plus signal of 2nd channel 0 (LVDS) Ground Minus signal of 2nd channel 1 (LVDS) Plus signal of 2nd channel 1 (LVDS) Ground Minus signal of 2nd channel 2 (LVDS) Plus signal of 2nd channel 2 (LVDS) Minus signal of 2nd clock channel (LVDS) Plus signal of 2nd clock channel (LVDS) Minus signal of 2nd channel 3 (LVDS) Plus signal of 2nd channel 3 (LVDS) Ground No Connection (For LCD internal use only.) No Connection (For LCD internal use only.) No Connection (For LCD internal use only.) Power Supply (5.0V) Power Supply (5.0V) Power Supply (5.0V)
First Pixel data
Second Pixel data
FIG. 4 Connector diagram
1’st signal pairs
Product Specification
IS100-L30O-C23(UJU)
#1 #30
2’nd signal pairs
Rear view of LCM
CN1
Power(+5V)
LM230WF5
Liquid Crystal Display
Note:
1. NC: No Connection.
2. All GND(ground) pins should be connected together and to Vss which should also be connected to the LCD’s metal frame.
3. All V
(power input) pins should be connected together.
LCD
4. Input Level of LVDS signal is based on the IEA 664 Standard.
Ver. 1.0 Feb. 09, 2011 9 / 30
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