TOSHIBA LTM12C285 Specification

DD

DD

26cm COLOUR TFT-LCD MODULE

(12.1 TYPE)

LIQUID CRYSTAL DISPLAY DIVISION
PRODUCT INFORMATION

LTM12C285

(a-Si TFT)

FEATURES

(1) 12.1 SVGA color display with Super High Luminance
(2) Built in Long Life Lamps(MTTF:50,000 h)
( Condition/ Ta:25°C, IFL:6mA(rms)(continuing lighting), fFL:40kHz )
(3) Mounting Hole Compatible with LTM12C289
(4) Replaceable structure of lamp units

MECHANICAL SPECIFICATIONS

Item Specifications
Dimensional Outline (typ.) 278.3 (W) x 216.0 (H) x 13.5max (D) mm
Number of Pixels 800 (W) x 600 (H) pixels
Active Area 246.0 (W) x 184.5 (H) mm
Pixel Pitch 0.3075 (W) x 0.3075 (H)
Weight (approximately) (900g)
Backlight Four CCFLs, Sidelight type

ABSOLUTE MAXIMUM RATINGS

Item Min. Max. Unit

(VDD) -0.3 4.0 VSupply Voltage

(VFL) 0 2.0 kV(rms)
FL Driving Frequency (fFL) 0 100 KHz
Input Signal Voltage (VIN) -0.3 VDD+0.3 V
Operating Ambient Temperature
Operating Temperature for Panel
Storage Temperature -20 60 °C
Storage Humidity
(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.

*1

*2

0 50 °C
0 60 °C

10 90 %(RH)

TENTATIVE

ELECTRICAL SPECIFICATION (Ta=25°C)

Item Min. Typ. Max. Unit Remarks

(VDD) 3.0 3.3 3.6 VSupply Voltage

(VFL) 580 630 680 V(rms)
FL Start Voltage 1400 --- 1900 V(rms) Ta=0°C
High Level Input Voltage (VIH) 0.8V
Low Level Input Voltage (VIL) 0 --- 0.2V

*1

Power Consumption

*1: 8 color bars pattern
*2: Except the efficiency of FL inverter

*1 *2

(IDD)
(IFL)

*2

--- (280) (450) mACurrent Consumption

3.0 --- 6.0 mA(rms)

--- (16) --- W IFL =6.0mA(rms)

--- V

DD

V

OPTICAL SPECIFICATION (Ta=25°C)

Item Min. Typ. Max. Unit Remarks

Contrast Ratio (CR) 100 250 --- ---

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

) --- --- 50 ms

Luminance (L) (400) (500) --- cd/m

OFF

*The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
Toshiba 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 or others.

*The information contained herein may be changed without prior notice. It is therefore advisable to contact Toshiba before
proceeding with the design of equipment incorporating this product.

2

IFL=6.0mA(rms)

(1/9) 2001- 1-10 (Ver.1.1)

DIMENSIONAL OUTLINE
(Front Side)

TENTATIVE

LTM12C285

Unit : mm
Standard tolerance : 0.5

(2/9) 2001- 1-10 (Ver.1.1)

DIMENSIONAL OUTLINE

（

Rear Side

）

TENTATIVE

LTM12C285

Unit : mm
Standard tolerance : 0.5

(3/9) 2001- 1-10 (Ver.1.1)

BLOCK DIAGRAM

DC/DC
Converter

CC FLBacklight
CC FLBacklight

LCD  Panel

LTM12C285

ConnectorCon nector

CN3

C N1

I/FConnector

C N2

GrayScale
Manipulation
Voltage
Generation
Circuit

Panel
Controller

DisplayReverse
 Signals(2bit)

80 0 x600 pixels

Y‑DriverIC

X ‑Drive r IC

CN4

CC FLBacklight
CC FLBacklight

(4/9) 2001- 1-10 (Ver.1.1)

TIMING CHART (TBD)

(1) Horizontal Timing

thw

H-sync

thds thdh

DE

NCLK

LTM12C285

th

(2) Vertical Timing

tvw

V-sync

tvds

H-sync

DE

D11D9D7D5D3

tv

tvdh

L3L2L1DATA

L5 99 L6 00

tc

tchtcl

D80 0D 799D79 8D7 97D 796

D3D2DATA

D1D1

NCLK

DATA
H-sync

VDD x 50%

tdhtds

VDD x 80%

VDD x 20%

(5/9) 2001- 1-10 (Ver.1.1)

TIMING SPECIFICATION (TBD)

Item Symbol min. typ. Max. unit
Frame Period
V-sync Pulse Width
Vertical Data Start Position
Vertical Display Term
Horizontal Scanning Term
H-sync Pulse Width
Horizontal Data Start Position
Horizontal Display Term

Clock Period
Clock “H” Time
Clock “L” Time
Data Setup Time
Data Hold Time

tv (ＴＢＤx th)

tvw

tvds

tvdh

(2 x th) - - line
(7 x th) - (256 x th) line

(600x th) (600 x th) (600 x th) line

th (ＴＢＤx t c)

thw

thds

thdh

tc

(8 x tc) - - Clock

(TBDx tc) (TBDx tc) (TBDx tc) Clock

(800 x tc) (800 x tc) (800 x tc) Clock

(TBD) (25.0) - ns

(628 x th)

(1056 x tc) (TBDx tc) Clock

(ＴＢＤx th)

tch (4.0) - -

tcl (4.0) - -

tds (3.0) - -

tdh (5.0) - -

LTM12C285

line

ns
ns
ns
ns

Note 1) If ENAB is fixed to "H" or "L" level for certain period while NCLK is supplied, the panel displays black with some     
    flicker.

Note 2) If NCLK is fixed to "H" or "L" level for certain period while ENAB is supplied, the panel may be damaged.

Note 3) 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.

Note4 ) Do not make tv, tvdh and tvds fluctuate.
   If tv, tvdh, and tvds are fluctuate, the panel displays black.

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.

(6/9) 2001- 1-10 (Ver.1.1)

CONNECTOR PIN ASSIGNMENT FOR INTERFACE

Terminal No.

Symbol

CN1 INPUT SIGNAL

Connector : DF14A-30P-1.25H / HIROSE ELECTRIC CO., LTD.
Mating Connector : DF14-30S-1.25C, Contact Pin : DF14-2628SCF

Function
1 GND
2 NCLK SAMPLING CLOCK
3 H-Sync HORIZONTAL SYNC.
4 V-Sync VERTICAL SYNC.
5 GND
6 R0
7 R1
8 R2
9 R3

10 R4
11 R5
12 GND
13 G0
14 G1
15 G2
16 G3
17 G4
18 G5
19 GND
20 B0
21 B1
22 B2
23 B3
24 B4
25 B5
26 DE DATA ENABLE
27 GND
28 VDD +3.3V POWER SUPPLY
29 VDD +3.3V POWER SUPPLY
30 GND

2)

RED DISPLAY DATA (LSB)

2)

RED DISPLAY DATA

2)

RED DISPLAY DATA

2)

RED DISPLAY DATA

2)

RED DISPLAY DATA

2)

RED DISPLAY DATA (MSB)

2)

GREEN DISPLAY DATA (LSB)

2)

GREEN DISPLAY DATA

2)

GREEN DISPLAY DATA

2)

GREEN DISPLAY DATA

2)

GREEN DISPLAY DATA

2)

GREEN DISPLAY DATA (MSB)

2)

BLUE DISPLAY DATA (LSB)

2)

BLUE DISPLAY DATA

2)

BLUE DISPLAY DATA

2)

BLUE DISPLAY DATA

2)

BLUE DISPLAY DATA

2)

BLUE DISPLAY DATA (MSB)

LTM12C285

CN2 INPUT SIGNAL

Connector : DF14A-2P-1.25H / HIROSE ELECTRIC CO., LTD.
Mating Connector : DF14-2S-1.25C, Contact Pin : DF14-2628SCF

Terminal No. Symbol Function

1 U / D VERTICAL REVERSE(“L” level or Open ; normal, ”H” level ; reverse)
2 R / L HORIZONTAL REVERSE (“L” level or Open ; normal , ”H” level ; reverse)

CN3 / 4 CCFL POWER SOURCE

Connector : BHR-04VS-1 / JAPAN SOLDERLESS TERMINAL MFG CO., LTD.
Mating Connector3) : SM04(4.0)B-BHS-1 / JAPAN SOLDERLESS TERMINAL MFG CO., LTD.

Terminal No. Symbol Function

1 VFLH1/3 CCFL Power Supply ( high voltage)
2 VFLH2/4 CCFL Power Supply ( high voltage)
3 NC

1)

Non Connection (open)
4 VFLL1/2 CCFL Power Supply (low voltage)

Note 1) NC terminal should be open.
Note 2) See next page.
Note 3) Take away terminal No.3 of the mating connector. If does not take away, it may cause smoke burn of
electrical parts by high voltage.

(7/9) 2001- 1-10 (Ver.1.1)

256k (k=1024) COLORS COMBINATION TABLE

Display 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 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 -

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

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 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 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

Basic
Color

Gray

Scale of

Red

Gray

Scale of

Green

Gray

Scale of

Blue

Gray

Scale of

White &

Black

Black

Blue L L L L L L L L L L L L H H H H H H -

Green

Light Blue L L L L L L H H H H H H H H H H H H -

Red

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

Dark

↑
↓

Light

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

Dark

↑
↓

Light

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

Dark

↑
↓

Light

Blue

Black L L L L L L L L L L L L L L L L L L L 0

Dark

↑
↓

Light

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

TM12C285

Gray Scale

Level

:
:

:
:

:
:

:
:

:
:

:
:

:
:

:
:

L3…
L60

L3…
L60

L3…
L60

L3…
L60

(8/9) 2001- 1-10 (Ver.1.1)

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-N001,"CAUTIONS AND INSTRUCTIONS FOR TOSHIBA LCD MODULES".
Refer to individual specifications and TECHNICAL DATA sheets (hereinafter called "TD") for more detailed technical
information.

1) SPECIAL PURPOSES

A) Toshiba'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'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's published
specification limits.

C) In addition, since Toshiba 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.

LTM12C285

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 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.

(9/9) 2001- 1-10 (Ver.1.1)