Toshiba LTD121EA43G Manual de usuario

To :

SPECIFICATION(TENTATIVE)

FOR

Toshiba Matsushita Display Technology TFT-LCD MODULE without Backlight

LTD121EA43G

LTD121EA43G-01

DATE OF ISSUE : 2004-04-20

TV/PC/Monitor-Use Marketing & Engineering Group2

TV/PC/Monitor-Use Marketing & Engineering Dept.

AVC-Use LCD Division

Toshiba Matsushita Display Technology Co.,Ltd.

1-9-2, Hatara-cho, Fukaya-shi, Saitama, 366-0032, JAPAN (Toshiba Fukaya Operations)

This specification is only used for discussing the included items.

You haven’t to approve this specification.

When we shall agree the specification, we will issue the formal one.

Specification No. Sheet 1

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

Revision History

Date Rev. Sheet

(New) Item Old New Reason

Specification No. Sheet 2

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

Caution and Handling Precaution

For your end users' safety, it is strongly advised that the items with "" should be included in the instruction manual of the

system which may be issued by your organization.

For Safety

Warning

1) SPECIAL PURPOSES

a) Toshiba Matsushita Display Technology’s Standard LCD modules without backlight 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 they have not been designed for operation in extreme environments, they must never be used in devices that will be

exposed to temperatures above 50 degrees Celsius or below 0 degrees Celsius, to X-ray or Gamma-ray radiation, or to

abnormally high levels of vibration or shock which exceed Toshiba Matsushita Display Technology’s specification limits.

c) In addition, since Toshiba Matsushita Display Technology’s Standard LCD modules without backlight have not been

designed for use in applications where performance failures could be life-threatening of 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.

Caution

1) DISASSEMBLING OR MODIFICATION

DO NOT DISASSEMBLE OR MODIFY the modules.

Sensitive parts inside LCD module may be damaged, and dusts or scratches may mar the displays. Toshiba Matsushita

Display Technology does not warrant the modules, if customer disassembled or modified them.

2) BREAKAGE OF LCD PANEL

DO NOT INGEST liquid crystal material, DO NOT INHALE this material, and DO NOT PERMIT this material to contact the

skin, if glass of LCD panel is broken.

If liquid crystal material contacts the skin, mouth or clothing, take the following actions immediately.

In case contact to the eye or mouth, rinse with large amount of running water for more than 15 minutes. In case contact to

the skin or clothing, wipe it off immediately and wash with soap and large amount of running water for more than 15

minutes. The skin or closing may be damaged if liquid crystal material is left adhered.

In case ingestion, rinse out the mouth well with water. After spewing up by drinking large amount of water, get medical

treatment.

3) GLASS OF LCD PANEL

BE CAREFUL WITH CHIPS OF GRASS that may cause injuring fingers or skin, when the glass is broken.

Specification No. Sheet 3

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

4) ABSOLUTE MAXIMUM RATINGS

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.

5) RECOMMENDED OPERATING CONDITIONS

Don't exceed “the recommended operation conditions” in this specification. (The LCD panel should be used within

“the recommended operation conditions”.)

The performance and quality of the LCD panel are warranted only when the LCD panel is used within “the recommended

operation conditions”. Toshiba Matsushita Display Technology never warrants the performance and quality of the LCD

panel when you use the LCD panel over “the recommended operation conditions”, although within “the absolute

maximum rating”.

To use the LCD panel over “the recommended operation conditions” may have bad influence on the characteristics and

reliability of the LCD panel and may shorten the life of the LCD panel.

Therefore, when designing the whole set, not to be over “the recommended operation conditions”, you should fully take

care of supply voltage change, characteristic of connection parts, serge of input-and-output line , and surrounding temperature.

6) POWER PROTECTION CIRCUIT

Employ protection circuit for power supply, whenever the specification specifies it.

A suitable protection circuit should be applied, based on each system design.

DO NOT MODIFY the fuse used in the module. It may cause overheat and/or burning if dusts or metal particles are on the

PCBs in the LCD module.

7) DISPOSAL

Always comply all applicable environmental regulations, when disposing of LCD module.

8) EDGES OF PARTS

Be careful with edges of glass parts and touch panel. Even though burr disposal treatment is performed, it may cause

injuring. For designing the system, give special consideration that the wiring and parts do not touch those edges.

Specification No. Sheet 4

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

For Designing the System

2-1 DESIGNING ENCLOSURE

1) MECHANICAL DIMENSIONS

Refer to the individual specification for LCD module's mechanical dimensions.

2) BENDING / TWISTING

Make sure to design the enclosure that bending/twisting forces are not applied to LCD module during and after the

installation into the system.

3 GASES FROM SETTING MATERIAL

Some plastic materials and shock absorbing materials (rubber) used in the system may generate gases that may cause

the deterioration of the polarizer laminated on LCD’s panel or internal parts of the module. Prior confirmation is required.

4) GASES FROM PACKAGING MATERIAL

Some materials used for packaging (for which sulfuric acid is used in the recycling process) generate gases that may

cause the deterioration of the polarizer laminated on LCD’s panel or internal parts of the module. Prior confirmation is

required.

5) FIXATION OF GLASS

When assembling the glass portion into the backlight unit, determine a positioning part and fix the circumference of glass

on a double-sided tape etc. Mechanical parts should be designed so that stress may not be applied to inlet of the glass

downside. When assembling the PCB portion into the set, fix PCB in places other than part mounting domain.

6) LUMINANCE OF BACKLIGHT

This LCD is designed for note PC and assumes about 2500 cd/m2as luminance of the backlight used.

When the backlight of the luminance beyond 2500 cd/m2is used, luminance should be set up after evaluating enough the

product characteristics, such as module display operation, grace and reliability and checking that it is satisfactory.

Specification No. Sheet 5

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

7) APPLICATION NOTES

This is the longitudinal section of LTD121EA4X module which is comprized with LTD121EA43G module without

backlight. Please refer to this data for your backlight design.

Regarding to TAB bending position, please don’t bend TAB in the position of slit B, only use slit A position for bending.

Unit : mm

Specification No. Sheet 6

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

2-2 DESIGNING POWER SUPPLIES AND INPUT SIGNALS TO LCD MODULE

1) CAPACITY OF POWER SUPPLY

Be sure that power supply output from the system should be limited to smaller values than listed shown below. (For

example Quick Arcing Fuse with listed ratings can be used.)

It is because this LCD module explained in this specification has a current limiter, with such function at power input line(s).

But it may be some possibility of overheat and/or burning of LCD module and its peripheral devices before current limiter of

the module when open-short test of the module is performed by using power supply higher than following recommended

value.

Power

supply Recommended maximum

output current of

power supply

Recommended Fuse Rating

(in case of using fuse

for current limiter)

Built-in Fuse Rating

(for reference)

VDD 4.0 A 1.25 A 1.25 A

Refer to individual specification for details for capacity of power supply, and apply some protection circuit including fuses

for power supply lines.

2) SEQUENCE OF POWER SUPPLIES AND INPUT SIGNALS(Refer 4.2.2)

Design sequence of power supplies and the input signals according to mentioned 4.2.2.,

If sequence is out of specifications, LCD is danger of damage and wrong display.

3) PREVENTION OF IMAGE STICKING

Design the system not to display same pattern for a long time in order to prevent image sticking on the panel. Note that

incorrect sequence of power supplies and input signals may cause the sticking on the panel, too.

4) GROUNDING OF METAL FRAME

Grounding of PCB GND of LCD module is generally effective to prevent radiation interference from the system design.

However, the necessity of grounding, or effective grounding method should be dependent on each system design.

2-3 DESIGNING FOR BETTER VISIBILITY

1) PANELANGLE

Visibility of LCD module deeply depends on the viewing directions. The position and the angle of LCD module in the

system should be designed so that the best visibility can be obtained at the actual usage.

2) WINDOW OPENING

Dimensions of window opening of the system's enclosure should be designed as smaller than "Viewing Area" and larger

than "Active Area" specified in individual specification in order to obtain better appearance.

3) PROTECTIVE COVER

In case of severe environmental condition like outdoor usage, a proper transparent protective cover(lens) over LCD

module is recommended to apply in order to prevent scratches, and invasion of dust, water, etc., from the system's window

onto LCD module.

Ultra-violet ray cut filter is recommended to apply onto LCD module for outdoor operation. Strong ultra-violet ray may

cause damage the panel. However, in that case, transmittance-luminance will decrease. Careful selection of material is

required.

Specification No. Sheet 7

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

2-4 SAFETY DESIGN

Toshiba Matsushita Display Technology always endeavor to maintain sufficient quality of the LCD panel in process of

designing and manufacturing, however, to avoid causing extended damages such as accidents resulting in injury or

death, fire accidents, or social damages if the LCD panel fails, please adopt safe design as a whole set, by adopting

redundant design , taking measure in set design to prevent fire-spreading, over-current, or incorrect operation, etc.

For Installation in Assembly

3-1 CARRYING

When module without backlight is carried by hand, please hold the glass edge with both hands.

If PCB and TAB are held, it will become the cause of failure and It may be some possibility of overheat and/or burning of

module without backlight

If the surface and the back of glass are held directly, it will become the cause of poor display such as scratch and stain.

In addition, when module without backlight is carried by hand, wear finger sack or soft glove out of which dust dose not

come, and be careful not to cut a hand with edge of glass etc.

3-2 ESD (ELECTRO-STATIC DISCHARGE) PREVENTION

The C-MOS LSIs used in LCD module is very sensitive to ESD. The following caution should be taken when installing LCD

module to an enclosure of the system in order to prevent damage of C-MOS LSIs used in LCD module.

1) HUMIDITY

Ambient humidity of working area is recommended to be higher than 50%RH in order to avoid ESD.

2) GROUNDING

2-1) Grounded electro-conductive mats are recommended to be covered on the floor of working area and surface of

working benches.

2-2) The grounding should be done through a resister of 0.5-1M ohms in order to prevent spark of ESD.

2-3) Person handling LCD modules without backlight should be grounded with wrist band.

2-4) Tools like soldering iron and screw drivers and working benches should be grounded.

3) IONIZER

Using ionizer (an antistatic blower) is recommended at working area in order to reduce electro-static voltage.

4) REMOVING PROTECTION FILM

When removing protection film from LCD panel, peel off the film slowly (more than three seconds) from the edge of the

panel with round-ended tweezers or adhesive tape while blowing with ionizer toward the peeling face to minimize ESD

which may damage electrical circuit.

5) Be careful with touching metal portion of testing instruments in order to prevent unnecessary ESD.

6) Do not touch the electrode area of PCB and electrical parts like LSI, capacitor, connector pin, etc.

Specification No. Sheet 8

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

3-3 DUSTAND STAIN PREVENTION

1) WORKINGAREA

Reduce dust level in working area. Especially the level of metal particle should be decreased, otherwise electrical circuit in

LCD module may be damaged due to short circuit by metal particles.

2) PROTECTION FILM

LCD module may be shipped with "protection film" on LCD panel in order to prevent from scratches and dust.

It is recommended to remove the film at later process of assembling.

3) FINGER PRINT

Use finger stalls or soft and dust-free gloves in order to keep clean appearance of LCD module when handled for incoming

inspection and assembly.

4) WIPING OFF DUST ON THE PANEL

When LCD panel becomes dirty, wipe the panel surface off softly with absorbent cotton or another soft cloth.

If necessary, breathe upon the panel surface and then wipe off immediately and softly again.

If the dirt can not be wiped off, follow the instructions described in individual specification.

Be careful not to spill organic solvents into the inside of LCD module. The solvents may damage driver IC and PCB area

used inside module.

The polarizer laminated to LCD panel and adhesives may be damaged by the solvents, so do not use any organic solvents

for wiping off LCD panel.

5) ADHESIVE ON LCD PANEL

Be careful not to attach adhesive, grease, etc., on LCD panel, because it is difficult to remove them without any damages

on LCD panel.

6) WATER SPOTS ON THE PANEL

Avoid the dewing or water condensation.

Wipe off a spot or spots of water or mist on LCD panel softly with absorbent cotton or another cloth as soon as possible if

happened, otherwise discoloration or stain may be caused.

3-4 BENDING / TWISTING OF LCD MODULE DURING ASSEMBLY

1) INSTALLING LCD MODULE TO THE ENCLOSURE

Do not bend or twist LCD module even momentary when LCD module is installed into an enclosure of the system.

Specification No. Sheet 9

Toshiba Matsushita Display Technology Co.,Ltd Date: 2004-04-20

Date: New No. LTD121EA43G-01

Old No.

←# Special ←& Addition ←Change

3-5 MECHANICAL FORCES

1) STRONG MECHANICAL SHOCK

Refrain from strong mechanical shock like dropping from the working bench or knocking against hard object.

These may cause panel crack, damage of FL or other mis-operation.

2) EXCESSIVE FORCE

Refrain from excessive force like pushing the surface of LCD panel. This may cause scratches or breakage of the panel, or

a failure of the module.

3) SCRATCHES ON THE PANEL

Do not put heavy object such as tools, books, etc., and do not pile up LCD modules without backlight.

Be careful not to touch surface of the polarizer laminated to the panel with any hard and sharp object. The polarizer is so

soft that it can be easily scratched, even the protect film covers it.

4) CONNECTORS

When inserting or disconnecting the connectors to LCD module, be sure not to apply force against PCB nor connecting

cables, otherwise internal connection of PCB and TAB drivers may be damaged.

3-6 OPERATION

Be sure that the following caution should be taken under assembly and inspection of the system.

1) POWER SUPPLY

Power supplies should always be turned off in connecting process.

Do not connect or disconnect the power cables and connectors with power applied to LCD module.

2) INPUT SIGNAL

The signal should be applied after power supplies are turned on.

The signal should be removed before power supplies are turned off.

The detailed sequence of power supplies and signals are described in individual specifications.

For Installation in Backlight Unit

When assembling this module without backlight into the backlight unit and mechanical component, introduce electro static

destruction countermeasure as follows into the process of assembly, and be careful not to destroy module without

backlight with static electricity.

(1) CLOTHES

Please wear electric conduction shoes.

Please use list strap with cable.

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