TOSHIBA LT121DEE2P00 Specification

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Toshiba Mobile Display Co., Ltd.

31cm COLOUR TFT-LCD MODULE

PRODUCT INFORMATION

FEATURES

(1) 12.1”XGA(1024x768 pixels) display size for notebook PC
(2) Light weight, High Brightness(225cd/m2) design
(3) LVDS interface system (H-Sync, V-Sync)

MECHANICAL SPECIFICATIONS

Item Specifications
Dimensional Outline (typ.) 255.5(W) x 199.0 (H) x 4.8max(D) mm
Number of Pixels 1024(W) x 768(H) pixels
Active Area 245.76(W) x 184.32(H) mm
Pixel Pitch 0.24(W) x 0.24(H)
Weight (Typ) 156 g
Backlight Single CCFL, Sidelight type

ABSOLUTE MAXIMUM RATINGS

Item Symbol Min. Max. Unit Checked Terminal
Supply Voltage V
Input Voltage of Signals V
FL Driving Voltage V
FL Driving Frequency f
Operating Ambient Temperature T
Operating Ambient Humidity H
Storage Temperature T
Storage Humidity H

DD

IN

FL

FL

OP

OP

STG

STG

Operating Temperature for Panel - 0 +60

-0.3 +4.0 V VDD - GND

-0.3 VDD+0.3 V LVDS interface

- 2.0 kV(rms)

- 100 kHz

0 +50

10 90 %(RH)

-20 +60
10 90 %(RH)

(12.1 TYPE)

LT121DEE2P00

(p-Si TFT)

TENTATIVE

4)

qC

qC

qC

ELECTRICAL SPECIFICATION

Item Symbol Min. Typ. Max. Unit Remark
Supply Voltage V
FL Input Current I
FL Driving Voltage V

FL Driving Frequency f
FL Starting Voltage V

DD

FL

FL

FL

SFL

3.0 3.3 3.6 V

3.0 5.5 6.0 mA(rms)

520 590 660 V(rms) IFL=5.5mA(rms)(Reference)

30 50 60 kHz

1180 - 1950 V(rms)

0qC

OPTICAL SPECIFICATION (Ta=25qC)

Item Min. Typ. Max. Unit Remarks
Contrast Ratio (CR) 140 250 --- ---

(tON) --- --- 50 msResponse Time
(t

) --- --- 50 ms

OFF

Luminance (L) 168 225 --- cd/m
Viewing Angle U/D/R/L* 10/30/30/30 - - degree

*U: Upper side, D: Down side, R: Right side, L: Left side

*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

therwise under any patent or patent rights of Toshiba Mobile Display or others.

o
*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.

2

IFL=5.5 mA(rms)

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DIMENSIONAL OUTLINE

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TENTATIVE

LT121DEE2P00

Unit : mm
Standard tolerance : r0.5

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BLOCK DIAGRAM

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DC/DC

converter

Y-driver

Liquid Crystal Panel

LT121DEE2P00

X-driver

Y-driver

Gray scale

Manipulation
Voltage
Generation

CN1

Connector

Circuit

Panel

Controller

LVDS include

1, 1 2, 1 X2
1, 2

1024 x 768 pixels

Backlight

1024 pixels

, 1 X2n, 1 1024, 1

n-1

CN2

1, Y X

, Y X2n, Y

2n-1

1, 768 1024,768

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768 pixels

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TIMING CHART

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LT121DEE2P00

(1) Vertical Timing

NCLK

DE

R7-R0
G7-G0
B7-B0

(2) Horizontal Timing

NCLK

DE

R7-R0
G7-G0
B7-B0

t1

t2

4

t

4

X

X

,

1

,

Y

X

,

1

t

2

,

X

2

3

,

4

X,Y

X,766

t

4

7

3,

Y

,

Y

4,Y

t5

Xn,Y

t

7

6

7

,

X

X,768

1

0

2

3

,

Y

Y

,

4

2

0

1

t

3

t

6

tvw

VSYNC

tvsu tvhd tvbp th

HSYNC

tv䌦

p

ta tb

DE 767 768 1 2

th

1024

HSYNC

DE

Pixel Data

NCLK

thw

thfp twde thbp

12345

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7

TIMING SPECIFICATION

Item Symbol min. typ. max. unit
Frame Period t1 778 x t4 806 x t4 860 x t4 ­Frame Frequency 1/t1 40 60 Hz
Vertical Display Term t2 768 x t4 768 x t4 768 x t4 ­Vertical Blanking Term t3 10 x t4 38 x t4 92 x t4 ­1 Line Scanning Time t4 1319 x t7 1344 x t7 1600 x t7 -

Horizontal Display Term t5 1024 x t7 1024 x t7 1024 x t7 ­Horizontal Blanking Term t6 295 x t7 320 x t7 576 x t7 ­Clock Period t7 15 15.38 - ns
Clock Frequency 1/T7 - 65 66.6
V-Sync Pulse Width tvw 2 x t4 - 7 x t4 ­V-Sync Set up Time tvsu 8 x t7 - - ­V-Sync Hold Time tvhd
Vertical Front Porch tvfp 2 x t4 - - ­Vertical Back Porch tvbp 6 x t4 - - -
Horizontal Period th 1319 x t7 - 1600 x t7 -

H-Sync Pulse Width th w 8 x t7 - - ­Horizontal Front Porch th fp 4 x t7 ­Horizontal Back Porch thbp 8 x t7 ­thw+thbp
DE Pulse Width tw de 1024 x t7 1024 x t7 1024 x t7 ­t3 = tvfp + tvw + tvbp
t4 = th
t6 = thfp + thw + thbp

Note 1) Refer to “TIA/EIA Timing Chart”

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- 20.68 - us

hbp+16 x t

20.04 - -

16 X t7 -

--

㪌㪇㪇㩷㫏㩷㫋㪎
㪋㪐㪉㩷㫏㩷㫋㪎

㪌㪇㪇㩷㪯㩷㫋㪎

-

㫌㫊

-

-

-

LT121DEE2P00

Note 2) If ENAB 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 ENAB is supplied, the panel may be damaged.

Note 4) Please adjust LCD operating signal timing and FL driving frequency, to optimize the display quality.

There is a possibility that flicker is observed by the interference of LCD operating signal timing and FL driving

condition (especially driving frequency), even if the condition satisfies above timing specifications and

recommended operating conditions shown in 3.

Note5 ) Do not make tv, tvdh and tvds fluctuate.

If tv, tvdh, and tvds are fluctuate, the panel displays black.

Note6) In case of using the long frame period, the deterioration of display quality, noise etc. may be occurred.

Note7) 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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CONNECTOR PIN ASSIGNMENT FOR INTERFACE

CN1 INPUT SIGNAL

Connector : 20347-030E-02 / I-PEX)

[ Mating Connector : Wire Type 20345-030T]

Terminal No. Symbol Function

1NC NC
2NC NC
3NC NC
4NC NC
5NC NC
6NC NC
7NC NC
8 V

9 V
10 V
11 V
12 V
13 V
14 NC NC
15 NC NC
16 NC NC
17 NC NC
18 NC NC
19 NC NC
20 V
21 V
22 RxIN0- Negative LVDS differential data input , [R0-R5, G0]
23 RxIN0+ Positive LVDS differential data input , [R0-R5, G0]
24 RxIN1- Negative LVDS differential data input , [G1-G5, B0-B1]
25 RxIN1+ Positive LVDS differential data input , [G1-G5, B0-B1]
26 RxIN2- Negative LVDS differential data input , [B2-B5, HS, VS, DE]
27 RxIN2+ Positive LVDS differential data input , [B2-B5, HS, VS, DE]
28 RxCLKIN- Negative LVDS differential clock input
29 RxCLKIN+ Positive LVDS differential clock input
30 V

Note 1) Please connect NC pin to nothing. Don’t connect it to grand nor to other signal input.

Please connect GND to ground. Don’t use it as no-connect nor connection with high impedance.

DD

DD

DD

DD

SS

SS

SS

SS

SS

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LT121DEE2P00

POWER SUPPLY : +3.3V
POWER SUPPLY : +3.3V
POWER SUPPLY : +3.3V
POWER SUPPLY : +3.3V
GND
GND

GND
GND

GND

CN2 CCFL POWER SOURCE

Connector : BHSR-02VS-1/JAPAN SOLDERLESS TERMINAL MFG CO., LTD.

[ Mating Connector : SM02B-BHS-1/JAPAN SOLDERLESS TERMINAL MFG CO., LTD. ]

Terminal No. Symbol Function

1 V
2 V

FLH

FLL

CCFL POWER SUPPLY (HIGH VOLTAGE)
CCFL POWER SUPPLY (LOW VOLTAGE)

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RECOMMENDED TRANSMITTER (THC63LVDF63A,THC63LVDM63A,THC63LVDM63A-85)
TO LT121DEE2P00 INTERFACE ASSIGNMENT

Case1: 6bit Transmitter

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LT121DEE2P00

THC63LVDF63A,THC63LVDM63A,THC63LVDM63A-85

Input Terminal No.

Symbol Terminal Symbol Function

TIN0 44 R0 Red Pixels Display Data (LSB)
TIN1 45 R1 Red Pixels Display Data
TIN2 47 R2 Red Pixels Display Data
TIN3 48 R3 Red Pixels Display Data
TIN4 1 R4 Red Pixels Display Data
TIN5 3 R5 Red Pixels Display Data (MSB)
TIN6 4 G0 Green Pixels Display Data (LSB)
TIN7 6 G1 Green Pixels Display Data
TIN8 7 G2 Green Pixels Display Data
TIN9 9 G3 Green Pixels Display Data
TIN10 10 G4 Green Pixels Display Data
TIN11 12 G5 Green Pixels Display Data (MSB)
TIN12 13 B0 Blue Pixels Display Data (LSB)
TIN13 15 B1 Blue Pixels Display Data
TIN14 16 B2 Blue Pixels Display Data
TIN15 18 B3 Blue Pixels Display Data
TIN16 19 B4 Blue Pixels Display Data
TIN17 20 B5 Blue Pixels Display Data (MSB)
TIN18 22 HSYNC H-Sync
TIN19 23 VSYNC V-Sync
TIN20 25 DE Compound Synchronization Signal

CLK IN 26 CLK Data Sampling Clock

Note 1) Please connect NC pin to nothing. Don't connect it to ground nor to other signal input.

(Graphics controller output signal)

Input Signal

Output

Signal

Symbol

TOUT0-

TOUT0+

TOUT1-

TOUT1+

TOUT2-

TOUT2+

TCLK OUT-

TCLK OUT+

LT121DEE2P00

Interface

(CN1)

Terminal Symbol

No.22
No.23

No.24
No.25

No.26
No.27

No.28
No.29

IN0-

IN0+

IN1-

IN1+

IN2-

IN2+

CLK-

CLK+

IN 0

IN 1

IN 2

TIN6

G0

TIN13

B1

TIN20

DE

TIN5

R5

T IN 1 2 T IN 1 1 T IN 1 0 T IN 9 T IN 8

B0

T IN19 T IN18 T IN17 T IN16 T IN15

VSYNC

TIN4 TIN3 TIN2 TIN1 TIN0

R4

G5

HSYNC

R3 R2 R1 R0

G4

B5

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G3

B4

G2

TIN7

G1

TIN14

B2B3

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RECOMMENDED TRANSMITTER (THC63LVDF63A,THC63LVDM63A,THC63LVDM63A-85)
TO LT121DEE2P00 INTERFACE ASSIGNMENT

Case2: 8bit Transmitter

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LT121DEE2P00

THC63LVDF63A,THC63LVDM63A,THC63LVDM63A-85

Input Terminal No.

(Graphics controller output signal)

Input Signal

Symbol Terminal Symbol Function

TIN0 51 R0 Red Pixels Display Data (LSB)
TIN1 52 R1 Red Pixels Display Data
TIN2 54 R2 Red Pixels Display Data
TIN3 55 R3 Red Pixels Display Data
TIN4 56 R4 Red Pixels Display Data
TIN6 3 R5 Red Pixels Display Data (MSB)
TIN7 4 G0 Green Pixels Display Data(LSB)
TIN8 6 G1 Green Pixels Display Data
TIN9 7 G2 Green Pixels Display Data
TIN12 11 G3 Green Pixels Display Data
TIN13 12 G4 Green Pixels Display Data
TIN14 14 G5 Green Pixels Display Data(MSB)
TIN15 15 B0 Blue Pixels Display Data (LSB)
TIN18 19 B1 Blue Pixels Display Data
TIN19 20 B2 Blue Pixels Display Data
TIN20 22 B3 Blue Pixels Display Data
TIN21 23 B4 Blue Pixels Display Data
TIN22 24 B5 Blue Pixels Display Data (MSB)
TIN24 27 HSYNC H-Sync
TIN25 28 VSYNC V-Sync
TIN26 30 DE Compound Synchronization Signal
TIN27 50 NC Non Connection (open)
TIN5 2 NC Non Connection (open)
TIN10 8 NC Non Connection (open)
TIN11 10 NC Non Connection (open)
TIN16 16 NC Non Connection (open)
TIN17 18 NC Non Connection (open)
TIN23 25 NC Non Connection (open)

CLK IN 31 CLK Data Sampling Clock

Note 1) Please connect NC pin to nothing. Don't connect it to ground nor to other signal input.

Output

Signal

Symbol

TOUT0-

TOUT0+

TOUT1-

TOUT1+

TOUT2-

TOUT2+

TOUT3-

TOUT3+

TCLK OUT-

TCLK OUT+

LT121DEE2P00

Interface

(CN1)

Terminal Symbol

No.22
No.23

No.24
No.25

No.26
No.27

No.28
No.29

IN0-

IN0+

IN1-

IN1+

IN2-

IN2+

CLK-

CLK+

IN 0

IN 1

IN 2

IN 3

TIN7

G0

TIN18

B1

TIN26

DE

TIN23

NC

TIN6 TIN4 TIN3 TIN2 TIN1 TIN0

R5

T IN15 T IN14 T IN13 T IN12 T IN9

B0

TIN25 TIN24

VSYNC

T IN17 T IN16 T IN11 T IN10 T IN5

NC

R4

G5

HSYNC

NC

R3 R2 R1 R0

TIN8

G4

TIN22 TIN21 TIN20

B5

NC

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G3

B4

NC

G2

TIN19

TIN27

NC

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G1

B2B3

NC

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256k (k=1024) COLORS COMBINATION TABLE

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LT121DEE2P00

Basic
Color

Gray

Scale of

Red

Gray

Scale of

Green

Gray

Scale of

Blue

Gray
Scale of
White &

Black

Display

Black

Blue

Green

Light Blue

Red
Purple
Yellow

White
Black

Dark

n
p

Light

Red

Black

Dark

n
p

Light

Green

Black

Dark

n
p

Light

Blue

Black

Dark

n
p

Light

White

R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0

L L L L L L L L L L L L L L L L L L ­ L L L L L L L L L L L L H H H H H H ­ L L L L L L H H H H H H L L L L L L ­ L L L L L L H H H H H H H H H H H H ­ H H H H H H L L L L L L L L L L L L ­ H H H H H H L L L L L L H H H H H H ­ H H H H H H H H H H H H L L L L L L ­ H H H H H H H H H H H H H H H H H H ­ 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

L L L L H L L L L L L L L L L L L L L 2

:
:

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
H H H H H H L L L L L L L L L L L L Red L63

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

L L L L L L L L L L H L L L L L L L L 2

:
:

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
L L L L L L H H H H H H L L L L L L Green L63

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

L L L L L L L L L L L L L L L L H L L 2

:
:

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
L L L L L L L L L L L L H H H H H H Blue L63

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

L L L L H L L L L L H L L L L L H L L 2

:
:

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
H H H H H H H H H H H H H H H H H H White L63

:
:

:
:

:
:

:
:

:
:

:
:

:
:

:
:

Gray Scale

Level

L3}

L60

L3}

L60

L3}

L60

L3}

L60

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!

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
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.

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LT121DEE2P00

C) In addition, since Toshiba Mobile Display’s 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 fluorescent lamp's connector or cables in order to prevent electric
shock, because high voltage is supplied to these parts from the inverter unit while 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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