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Toshiba Mobile Display Co., Ltd. 33.8cm COLOUR TFT-LCD MODULE
(12.1TYPE)
PRODUCT INFORMATION LTD121EWRF
(p-Si TFT)
FEATURES
(1) 12.1"WIDE-XGA(1280x800 pixels) display size for notebook PC
(2) LED Backlight (6 parallel connection) TENTATIVE
(3) Anti-Glare Surface
MECHANICAL SPECIFICATIONS
Item Specifications
Dimensional Outline (typ.) 268.1(W) x 180.2 (H) x 2.65/4.27(D) mm
Number of Pixels 1280 (W) x 800(H) pixels
Active Area 261.12(W) x 163.2(H) mm
Pixel Pitch 0.204(W) x 0.204(H) mm
Weight (approximately) 151 g(Typ)
Backlight LED
ABSOLUTE MAXIMUM RATINGS
Item Min. Max. Unit
Supply Voltage (VDD) -0.3 3.0 V
(VLED) - 5.0 V
LED Currency (ILED) - 30 mA
Input Signal Voltage (VIN) -0.3 VDD+0.3 V
Operating Temperature 0 50 qC
Storage Temperature -20 60 qC
Storage Humidity 10 90 %(RH)
ELECTRICAL SPECIFICATION
Item Min. Typ. Max. Unit Remarks
Supply Voltage (VDD) 2.35 2.5 2.75 V
Supply LED Voltage (VLED) 22.5 27.9 33.0 V @1 parallel
Common Mode Input Voltage (VCM) 0.9 1.2 1.75 V
Differential Input Amplitude (VID) 0.1 --- 0.6 V
Current Consumption *1 (IDD) --- (290) (400) mA
*2 (ILED) --- 15 mA
Power Consumption --- (3.3) --- W ILED=15 mA
*1 : 8 color bars pattern
*2 : The current value of each row should be the same value.
*3 : The LED drive recommends to use the PWM drive.
OPTICAL SPECIFICATION (Ta=25qC)
Item Min. Typ. Max. Unit Remarks
Contrast Ratio (CR) 150 250 --- ---
Response Time (tON)+ (tOFF) --- --- 80 ms
Luminance (L) (215) (300) --- cd/m2 ILED=15mA
*The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
Toshiba Mobile Display 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 Mobile Display or others.
*The information contained herein may be changed without prior notice. It is therefore advisable to contact Toshiba Mobile
Display before proceeding with the design of equipment incorporating this product.
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LTD121EWRF
DIMENSIONAL OUTLINE TENTATIVE Unit : mm
(Front side) Standard tolerance : r0.5
%GNN
2QNC\KGT
8+'9+0) #4'#
#%6+8' #4'#
r
8+'9+0) #4'#
#%6+8' #4'#
2QNC\KGT
%GNN
/#:
#%6+8'#4'# %'06'4
r
+(%0$CEM UKFG
8+'9+0) #4'#
#%6+8' #4'#
2QNC\KGT
r
/#:
8+'9+0) #4'#
2QNC\KGT
#%6+8' #4'#
#%6+8' #4'# %'06'4
r
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LTD121EWRF
DIMENSIONAL OUTLINE TENTATIVE
(Back side)
%
/#:
%
)0&
)0&
)0&
/#:
Note 1) Never push LCD back side. If LCD back side was pressed, It may cause damage of the back light
system.
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LTD121EWRF
BLOCK DIAGRAM
DC/DC
converte r
Y-driv er
Y-driv er
Liquid Cr ystal Panel
Gray scale 128 0 x 800 pix els
Manipulation
Voltage
Generation
Circuit
CN1
Connect or
P anel
Cont roller X-dr iver
L VD S in c lu d e
LED
1280 pixels
1, 1 2, 1 X2n-1, 1 X2n, 1 1280, 1
1, 2
1, Y X2n-1, Y X2n, Y
800 pixels
1, 800 1280,800
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LTD121EWRF
tv
TIMING CHART tvw
VSYNC
tvsu tvhd th
HSYNC
tv p tvbp tvd
tvds
DE 799 800 1 2
th
thw
HSYNC thbp
thfp thds thd
DE
1280
pixel 1 2 3 4
CLK
POWER SEQUENCE
500u s (Min.)
10ms (Max. ) 20ms (Max.) (200ms(Min.))
0.9VDD 0.9VDD
V DD 0.1VDD 0.1VDD 0.1VDD
50ms (Max.) 50ms (Max.)
0ms (Min.) 0ms (Min.)
CK+/- VOS
OS
IN0+/-
IN1+/-
IN2+/-
(34ms) (Min.) 0ms (Min.)
ON
LED B/L
OFF
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LTD121EWRF
TIMING SPECIFICATION 1) 2) 3) 4) 5) 6)
Item Symbol min. typ. max. unit
Horizontal Scanning Term Th 1650x tc 1680 x tc 1710 x tc clock
H-sync Pulse Width Thw 4 x tc 128 x tc clock
Horizontal Front Porch Thfp 4 x tc 72 x tc clock
Horizontal Back Porch Thbp 4 x tc 200 x tc clock
Horizontal Display Term Thd 1280 x tc 1280 x tc 1280 x tc clock
Frame Period tv 808 x th 831 x th 850 x th line
V-sync Pulse Width tvw 1 x th 6 x th line
Vertical Front Porch tvfp 1 x th 3 x th line
Vertical Back Porch tvbp 2 x th 22 x th line
Vertical Display Term tvd 800 x th 800 x th 800 x th line
Clock Period tc 11.76(85MHz) 11.98(83.5MHz) 12.35(81MHz) ns
Note 1) Refer to "Timing Chart" and LVDS specifications in TIA/EIA-644.
Note 2) If DE is fixed to "H" or "L" level for certain period while NCLK is supplied, the panel displays black with some flicker.
Note 3) If NCLK is fixed to "H" or "L" level for certain period while DE is supplied, the panel may be damaged.
Note4) tvb = tvw + tvfp + tvbp
thb = thw + thfp + thbp
Note5) In case of using the long frame period, the deterioration of display quality, noise etc. may be occurred.
Note6) NCLK count of each Horizontal Scanning Time should be always the same.
V-Blanking period should be "n" X "Horizontal Scanning Time". (n: integer)
Frame period should be always the same.
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LTD121EWRF
CONNECTOR PIN ASSIGNMENT FOR INTERFACE
CN1 INPUT SIGNAL
Connector : 20347-030E-02/I-PEX
Mating Connector : 20345-*30T-##/I-PEX
Terminal No. Symbol Function
1 VDD Power Supply : +2.5V
2 VDD Power Supply : +2.5V
3 VDD Power Supply : +2.5V
4 VDD Power Supply : +2.5V
5 NC Non-Connection
6 GND
7 GND
8 GND
9 GND
10 RxIN0-
11 RxIN0+
12 GND
13 RxIN1-
14 RxIN1+
15 GND
16 RxIN2-
17 RxIN2+
18 GND
19 RxCLKIN-
20 RxCLKIN+
21 GND
22 NC Non-Connection
23 VCD1 LED Cathode (Negative)
24 VCD2 LED Cathode (Negative)
25 VCD3 LED Cathode (Negative)
26 VCD4 LED Cathode (Negative)
27 VCD5 LED Cathode (Negative)
28 VCD6 LED Cathode (Negative)
29 NC Non-Connection
30 VAD LED Anode (Positive)
Note 1) Please connect GND pin to ground. Don't use it as no-connect nor connection with high impedance.
Note 2) Please connect NC to nothing. Don't connect it to ground nor to other signal input.
R x IN 0 T IN6 T IN5 T IN4 T IN3 T IN2 T IN1 T IN0
G0 R5 R4 R3 R2 R1 R0
R x IN 1 T IN13 T IN12 T IN11 T IN10 T IN9 T IN8 T IN7
B1 B0 G5 G4 G3 G2 G1
R x IN 2 T IN20 T IN19 T IN18 T IN17 T IN16 T IN15 T IN14
DE VSYNC HSYNC B5 B4 B3 B2
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LTD121EWRF
EQUIVALENT CIRCUIT OF LED
I LED Terminal No.28
I LED No.27
I LED No.26
I LED No.25
I LED No.24
I LED No.23
Connector (CN1)
Terminal No.30
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LTD121EWRF
256k (k=1024) COLORS COMBINATION TABLE
Gray Scale
Display R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
Level
Black L L L L L L L L L L L L L L L L L L -
Blue L L L L L L L L L L L L H H H H H H -
Green L L L L L L H H H H H H L L L L L L -
Basic Light Blue L L L L L L H H H H H H H H H H H H -
Color Red H H H H H H L L L L L L L L L L L L -
Purple H H H H H H L L L L L L H H H H H H -
Yellow H H H H H H H H H H H H L L L L L L -
White H H H H H H H H H H H H H H H H H H -
Black L L L L L L L L L L L L L L L L L L L 0
L L L L L H L L L L L L L L L L L L L 1
Dark L L L L H L L L L L L L L L L L L L L 2
Gray
n : : : L3}
Scale of
p : : : L60
Red
Light H H H H L H L L L L L L L L L L L L L61
H H H H H L L L L L L L L L L L L L L62
Red H H H H H H L L L L L L L L L L L L Red L63
Black L L L L L L L L L L L L L L L L L L L 0
L L L L L L L L L L L H L L L L L L L 1
Dark L L L L L L L L L L H L L L L L L L L 2
Gray
n : : : L3}
Scale of
p : : : L60
Green
Light L L L L L L H H H H L H L L L L L L L61
L L L L L L H H H H H L L L L L L L L62
Green L L L L L L H H H H H H L L L L L L Green L63
Black L L L L L L L L L L L L L L L L L L L 0
L L L L L L L L L L L L L L L L L H L 1
Dark L L L L L L L L L L L L L L L L H L L 2
Gray
n : : : L3}
Scale of
p : : : L60
Blue
Light L L L L L L L L L L L L H H H H L H L61
L L L L L L L L L L L L H H H H H L L62
Blue L L L L L L L L L L L L H H H H H H Blue L63
Black L L L L L L L L L L L L L L L L L L L 0
L L L L L H L L L L L H L L L L L H L 1
Gray Dark L L L L H L L L L L H L L L L L H L L 2
Scale of n : : : L3}
White & p : : : L60
Black Light H H H H L H H H H H L H H H H H L H L61
H H H H H L H H H H H L H H H H H L L62
White H H H H H H H H H H H H H H H H H H White L63
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LTD121EWRF
! FOR SAFETY
LCD module is generally designed with precise parts to achieve light weighted thin mechanical dimensions.
In using our Modules, make certain that you fully understand and put into practice the warnings and safety precautions
detailed in Engineering Information No.EE-D-001A,"CAUTIONS AND INSTRUCTIONS FOR TOSHIBA MOBILE DISPLAY
CO., LTD LCD MODULES".
Refer to individual specifications and TECHNICAL DATA sheets (hereinafter called "TD") for more detailed technical
information.
1) SPECIAL PURPOSES
A) Toshiba Mobile Display's Standard LCD Modules have not been customized for operation in extreme environments or for
use in applications where performance failures could be life-threatening or otherwise catastrophic.
B) Since Toshiba Mobile Display's Standard LCD Modules have not been designed for operation in extreme environments,
they must never be used in devices that will be exposed to abnormally high levels of vibration or shock which exceed
Toshiba Mobile Display's published specification limits.
C) In addition, since Toshiba Mobile Display Standard LCD Modules have not been designed for use in applications where
performance failures could be life-threatening or catastrophic, they must never be installed in aircraft navigation control
systems (such as, but not limited to Traffic Collision Avoidance System and Air Traffic Indicator), in military defense or
weapons systems, in critical industrial process-control systems (e.g., those involved in the production of nuclear energy), or
in critical medical device or patient life-support systems.
2) DISASSEMBLING OR MODIFICATION
DO NOT DISASSEMBLE OR MODIFY the module. It may damage sensitive parts inside LCD module, and may cause
scratches or dust on the display.
Toshiba Mobile Display doses not warrant the module, if customer disassembled or modified it.
3) BREAKAGE OF LCD PANEL
DO NOT INGEST liquid crystal material, DO NOT INHALE this material, and DO NOT CONTACT the material with skin, if
LCD panel is broken and liquid crystal material spills out.
If liquid crystal material comes into mouth or eyes, rinse mouth or eyes out with water immediately.
If this material contact with skin or cloths, wash it off immediately with alcohol and rinse thoroughly with water.
4) GLASS OF LCD PANEL
BE CAREFUL WITH CHIPS OF GLASS that may cause injuring fingers or skin, when the glass is broken.
5) ELECTRIC SHOCK
DISCONNECT POWER SUPPLY before handling LCD module.
DO NOT TOUCH the parts inside LCD module and the connector or cables in order to prevent electric shock, because high
voltage is supplied to these parts from power supply is turned on.
6) ABSOLUTE MAXIMUM RATINGS AND POWER PROTECTION CIRCUIT
DO NOT EXCEED the absolute maximum rating values under the worst probable conditions caused by the supply voltage
variation, input voltage variation, variation in parts' constants, environmental temperature, etc., otherwise LCD module may
be damaged.
Employ protection circuit for power supply, whenever the specification or TD specifies it.
Suitable protection circuit should be applied for each system design.
7) DISPOSAL
When dispose LCD module, obey to the applicable environmental regulations.
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