Document
Toshiba Matsushita Display Technology Co., Ltd
PRODUCT INFORMATION
31cm COLOR TFT-LCD MODULE (12.1 TYPE)
LTD121C31S (a-Si TFT)
All information is subject to change without notice. Please read bottom notes.
FEATURES
(1) 12.1 SVGA color display with High Luminance (2) Built in Long Life Lamps(MTTF:50,000 h)
TENTATIVE
( Condition/ Ta:25°C, IFL:6mA(rms)(continuing lighting), fFL:50kHz )
(3) Replaceable structure of lamp units and Mounting compatible with LTM12C289 Series
MECHANICAL SPECIFICATIONS
Item Dimensional Outline (typ.) Number of Pixels Active Area Pixel Pitch Weight (approximately) Backlight
Specifications 278.3 (W) x 209.0 (H) x 11.0max (D) mm 800 (W) x 600 (H) pixels 246.0 (W) x 184.5 (H) mm 0.3075 (W) x 0.3075 (H) 670g Twin CCFLs, Sidelight type
ABSOLUTE MAXIMUM RATINGS
Item Min. Max. Unit
Supply Voltage (VDD)
-0.3 4.0
V
(VFL)
0 2.0 kV(rms)
FL Driving Frequency (fFL)
- 100 KHz
Input Signal Voltage (VIN) Operating Ambient Temperature *1 Operating Temperature for Panel*2
-0.3 VDD+0.3 -10 65 -10 80
V °C °C
Storage Temperature
-20 80 °C
Storage Humidity
10 90 %(RH)
(Max. wet bulb temperature = 39°C)
*1: Wet bulb temperature should be 39°C Max., and no condensation of water. *2: The surface temperature caused by self heat radiation of cell itself is specified on this item.
ELECTRICAL SPECIFICATION (Ta=25°C) (RECOMMENDED OPERATION CONDITION)
Item
Min. Typ. Max.
Unit
Remarks
Supply Voltage
(VDD)
3.0 3.3 3.6
V
(VFL)
--- 460 --- V(rms)
FL Start Voltage
1200 --- 1900 V(rms) Ta=0°C
High Level Input Voltage (VIH)
0.3VDD
---
VDD
Low Level Input Voltage (VIL)
0
--- 0.3VDD
V
Current Consumption
(IDD) *3
--- 300 ---
mA
(IFL) *4
3.0 --- 6.5 mA(rms)
Power Consumption*1 *2
--- 7.0 ---
W IFL =6.0mA(rms)
*3: 8 color bars pattern *4: Except the efficiency of FL inverter
OPTICAL SPECIFICATION (Ta=25°C)
Item Min. Typ. Max. Unit Remarks
Contrast Ratio (CR)
150 350
---
---
Viewing Angle (Upper+Lower)
---
100
---
°
(CR ≥ 10)
(Left+Right)
---
120
---
°
Response Time (tON)
--- --- 50 ms
(tOFF)
Luminance (L) Lamp Life Time (MTBF)*5 *6
--- --200 250
50,000
50 ---
ms cd/m2
h
IFL=6.0mA(rms)
*5 : Conditions ;Ta=25°C, IFL=6.0mA(rms), continuous lighting
*6 : Definitions of failure ; 1) Lcd luminance becomes half of the minimum value. 2) Lamp doesn’t light normally.
*The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by Toshiba Matsushita Display Technology or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Toshiba Matsushita Display Technology or others.
*The information contained herein may be changed without prior notice. It is therefore advisable to contact Toshiba Matsushita Display Technology before proceeding with the design of equipment incorporating this product.
(1/10)
2003-12 -02 (Ver.0.4R)
DIMENSIONAL OUTLINE
TENTATIVE
LTD121C31S
Unit : mm Standard tolerance : 0.5
10.5
4.6
5.5 2.5
2.5 5.5
4.6
100 +/- 10
4-D3.40
161 23
7.5 7.5 66
184.5 (Active Area) (97) A.A. Center
(278.3) 274.3 270.3 249 (Bezel Opening)
270.3 274.3
(136.5) A.A. Center 246 (Active Area)
2.5 4 5.5 4
10.5 5.5 4 2.5 4
10.5
185.8 187.5 (Bezel Opening)
205
(209)
4 6
10.5
(2/10)
2003-12 -02 (Ver.0.4R)
DIMENSIONAL OUTLINE 7.0 7.5
TENTATIVE
LTD121C31S
Unit : mm Standard tolerance : 0.5
7.5 7.0
M3 Screw
6.1 4
4 6.1
Never push the TAB area: The TAB area is a weak point within the LCD
Don't push the Lamp Area
4.6
3.9
Inversion Signal Connector (DF14H-2P-1.25H)
No.1
71.5
60.8 +/- 1 No.1
8.3
3.7 6 I/F Connector (DF14H-30P-1.25H)
37.4 +/- 1
4.7
4 6
3.9
(3/10)
2003-12 -02 (Ver.0.4R)
I/F Connector
Y-Driver IC
Connector
BLOCK DIAGRAM
DC/DC Converter
Gray Scale Manipulation Voltage Generation CN1 Circuit
Panel Controller
CN2
Display Reverse Signals (2bit)
LTD121C31S
CCFL Backlight CCFL Backlight
LCD Panel 800 x 600 pixels
CN3
X-Driver IC
SEQUENCE OF POWER SUPPLIES AND SIGNALS
(4/10)
2003-12 -02 (Ver.0.4R)
TIMING CHART
VSYNC HSYNC
DE
tv‚p† 599 600
tv tvw
tvds tvblnk
HSYNC DE
thw thfp thds
th thde
RGB data NCLK
12345
th tvde
12
800
LTD121C31S
< DE-Only Mode>
(1) Vertical Timing
NCLK
DE R5 - R0 G5 - G0 B5 - B0
t3 1line 2 3 4
t1 t2
t3
Y 598 599 600
(2) Horizontal Timing
NCLK
DE R5 - R0 G5 - G0 B5 - B0
t3 t4 tc
1,Y 2,Y 3,Y 4,Y 5,Y 6,Y 7,Y
X,Y
797,Y 799,Y 798,Y 800,Y
tc tcl tch
NCLK
H-sync DE R5-R0 G5-G0 B5-B0
tds tdh
V IH (MIN):0.7 VDD(V) V IL(MAX):0.3 V DD(V) Input Signal Center Level : 0.5VDD(V)
V IH (MIN): 0.7VDD(V) V IL(MAX): 0.3VDD(V)
ab 0.5V DD (V)
Duty(a,b ):50 10%
(5/10)
2003-12 -02 (Ver.0.4R)
TIMING SPECIFICATION 1) 2) 3) 4) 5) 6)
Item Frame Period
Vertical blanking Term V-sync Pulse Width Vertical Front Porch Vertical Data Sync Period Vertical Display Term Ho.