LPREPARED
APPROVED
BY:
BY:
DATE
SPEC No. LC99908
SHARP
LIQUID
DATE
FILE No.
ISSU OCT.
CRYSTAL DISPLAY GROUP
SHARP CORPORATION
1.1999
PAGE
23 Pages
REPRENTATIVE
DMSION
ENGINEERING
DEPARTMENT
DUTY LCD DEVELOPMENT
CENTER
DUTY LIQUID CRYSTAL
DISPLAY GROUP
SPECIFICATION
DEVICE SPECIFICATION for
Passive Matrix LCD Module
Model No.
LM057QCTT03
q CUST~MER’S
USE ONLY
DATE
BY
PRESENTED
M.Ise
_
/
DEPARTMENT
GENERAL
MANAGER
ENGINEERING
DEPARTMENT
1
DUTY LCD DEVELOPMENT
CENTER
DUTY LIQUID CRYSTAL
DISPLAY
GROUP
1
MODEL No.
SPEC.No.
LC99908
RECORDSOF REVISION
LM057QCTT03
DOC. FIRST ISSUE
OCT. 1.1999
IDENT. DATA No.
IATE
SPEC
REVISED
No.
REVISED
No.
REF. PAGE
SUIWARY
CHECK
?l
APPROVAL
-----._--------..----------.----.---------------.-------------------------------------------------------.------------.----------------------------..--.--------.----.---------------.----------------.----------------------------------------~----------.-------------------______---.____------------.---------------.--------------------------------------------------------------------.-------------------____-__--..___------------.---------------.----------------.-------------------------------------------------.-.------------------__________.________________________--------.--------------~-----------------------------------------------------.---------~.--.-----_________.____------------.---------------.--------------------------------------------------------------------.-------------.------__------_____------------.---------------.--------------------------------------------------------------------.-------------.-----____-----.____------------.---------------.--------------------------------------------------------------------.--------------.
.-----_-____---.-_______________________--------.--------------------------------------------------------------------.--------------.
-___-_________._____-----------.---------------.----------------.---------------------------------------------------.-------------------________-.-____-----------.---------------.--------------------------------------------------------------------.--------------.
-----_________._____-----------.---------------.----------------.---------------------------------------------------.--------------,_.
-_---_______________-----------.---------------.----------------.---------------------------------------------------.------------------________-.-________________________-------.--------------------------------------------------------------------.-------------______________._____-----------.---------------.----------------.-----------------.---------------------------------.-------------__--__________._____-----------.---------------.----------------.-----------------.---------------------------------.-------------______________._____-----------.---------------.----------------.-----------------.---------------------------------.-------------________________________________________-------.----------------------------------.---------------------------------.-------------.___-_________._____-----------.---------------.----------------.---------------------------------------------------.-------------.___________________-----------.---------------.-------~------------------------------------------------------------.-------------._______________________________________-------.--------------------------------------------------------------------.-------------.--___________._________________________-------.--------------------------------------------------------------------.----------------_________________----------.---------------.-___________________-------------------------------________________________________________------.----------------.-------------------------------------
________________.__-----------_-_-me-_______,_____---------
____.___________________________________------.--------------------------------------------------------------------
.___---_---____
-----_______-.-_________________________------.--------------------------------------------------------------------
----------_---.
-----________.-_________________________------.________________________________________---------------------------.--------_------
SPEC
SHARP
MODEL
No.
No.
PAGE
LM057QClT03
LC99908
1
I
I
Precautions
1)
When design the product with this LCD module, make sure the viewing angle matches to its purpose of usage.
Viewing angle of this LCD module is illustrated
in Fig. 1.
8yMIN.<viewingangle<OyMAX.
(For the specific values of 6 y MIN.,
and 8 y MAX., refer to the table 9 )
Consider the optimum viewing conditions according to the purpose when installing
Viewing
direction
+6 y
ormal
the module.
line)
Panel surface
. .
.
Ei~-14 Definttlonofwe~
2)
.
This LCD module must be mounted using mounting holes of metal bezel. Handle carefully when install
the LCD module to avoid unnecessary stresses such as twisting or bending.
3)
If the surface of LCD panel needs to be cleaned, wipe it swiftly’with cotton or other soft cloth If it
is not still clean enough, blow a breath on the surface and wipe again
4)
Water droplets must be wiped off immediately
as those may leave stains or cause color changes if
remained for a long time.
5)
As LCD panel is made of glass substrate, dropping the LCD module or banging it against hard objects
may cause cracking or fragmentation.
I
@HARP
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I
SPEC
No.
LC99908
MODEL
No.
PAGE
LM057QCTT03
2
6) As CMOS LSIs are equipped in this module, following countermeasures must be taken to avoid
electrostatics charges.
1. Operator
Ware the electrostatic shielded clothes because human body may be statically charged if not ware shielded
clothes.
2. Equipment
There is a possibiiity
that the static electricity is charged to the equipment which have a function of peeling
or friction action(ex: conveyer, soldering iron, working table). Earth the equipment through proper
resistance(electrostatic
earth: 1 X 10” 9).
3. Floor
Floor is the important part to drain static electricity which is generated by operators or equipment.
There is a possibility
that charged static electricity is not properly drained in case of insulating
floor.
Set the electrostatic earth(1 X lO”S2).
4. Humidity
Proper humidity helps in reducing the chance of generating electrostatic charges. Humidity
should be kept
over 50%RH.
5. Transportation/storage
The storage materials also need to be anti-static treated because there is a possibility
that the human body or
storage materials such as containers may be statically charged by friction or peeling.
6. Others
The laminator@rotective
film) is attached on the surface of LCD panel to prevent it from scratches or stains.
It should be peeled off slowly using static eliminator.
Static eliminator
7)
should also be installed to the work bench to prevent LCD module from static charge.
Do not use any materials which emit gas from epoxy resin(hardener for amine) and silicone adhesive
agent(dealcoho1 or deoxym) to prevent discoloration
8)
of polarizer due to gas.
The brightness of the LCD module may be affected by the routing of CCFI cables due to leakage to the
chassis through coupling effect. The inverter circuit needs to be designed taking the level of leakage current
into consideration.
Thorough evaluation is needed for LCD module and inverter built into its ho& equipment
to ensure specified brightness.
9)
Avoid the exposure of the module to the direct sun-light or strong ultraviolet
light for a long time.
10) If the LCD module is stored at below specified temperature, the LC material may freeze and be deteriorated
If it is stored at above specified temperature, the molecular orientation of the LC material may change to
Liquid state and it may not revert to its original state. Therefore, the LCD module should always be stored
within specified temperature range.
11) Disassembling
the LCD module can cause permanent damage and it should be strictly avoided
SPEC
@HARP
MODEL
No.
LC99908
No.
PAGE
LM057QCTT03
3
12) Procedure to insert mating connector
When the mating connector is inserted, it should be parallel to the connector on the
should be inserted horizontally.
13)
LCD module and it
Do not leave a gap beh>een two connectors.
The module should be driven according to the specified ratings to avoid malfunction
and permanent damage.
Applying DC voltage causes a rapid deterioration of LC material. Make sure to apply alternating waveform
by continuous application
of the M signal. Espe&&&
t to avov
14)
power ON/OFF
sm
17 &n&l&
DC m
LCD retains the display pattern when it is applied for long time.(Image
retention)
To prevent image retention. do not apply the flied pattern for along time.
15) Image retention is not a deterioration
16)
Precautions
of LCD. It will be removed after display pattern is changed
CCFI’ backlight should be kept OFF during VDD is “L” level.
for
touch
panel
1) Designing
1. Active
area
Active area is defined as input area by pen or finger. Its function, optical properties and durability
are specified in the specifications.
a) Detection of coordinates and calbration
must always be conducted within active area. If those are
conducted outside of the active area, those may cause functional errors.
b) Area which is actually accessed by pen or finger must be designed within active area. If it is
designed outside of the active area, it may cause functional error.
2.Neutral
area
Neutral area is located around the active area for l.Omm wide. Although the coordinates can be detected
in this area, its functionality,
optical properties and durability are not assured.
a) Neutral area detects coordinates when input by pen or finger, but it may cause functional
error
when it is treated as detected data.
b) As the purpose of the neutral area is to protect inactive area, pushing hardly by pen tip or others
may cause deterioration
of its durability.
3.Visible area
This is transparent area where silver electrode or flex printed with opaque ink are not existing.
It assures qualities related to appearance standards defined in the specifications.
4Jnactive area
Upper electrode or lower electrode in the inactive area is printed with transparent insulation
ink on it.
It is located outside of the active area and a non functional area.
a) Inactive area is printed with insulation ink. Hard push action may cause a deformation
electrode film and may lead to a malfunction
of upper
in the active area nearby. Upper electrode may come
J
r
I
SPEC No.
@HARP
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MODEL No.
LC99908
PAGE
LM057QCTT03
4
in contact with lower electrode and may cause a electrical leakage.
b) As the purpose of the inactive area is to keep the flatness of the upper electrode ftirn in the touch panel
structuie. hard push by pen or by system chassis may cause a functi&al
error.
Designing print circuit
1. There is a contact resistance between upper and lower electrodes of the touch panel. It is recommended
to set the impedance of detecting circuit high enough. Low impedance detecting circuit may cause a
functional error.
2. Contact of the upper and lower electrode generates a contact resistance. Access by pen or finger to the
touch panel should be started after the contact resistance becomes stable. Otherwise, it may cause
a functional error.
3. Touch panel picks up a noise easily. It is recommended to earth or do other noise protections. Otherwise,
it may cause a functional error.
Designing system chassis
1. Retain the air gap between upper electrode film and front chassis.
a) Retain minimum
of 0.3mm air gap above the inactive area so that the front chassis does not make a
pressure on upper electrode film. If there is any pressure on it, it may cause a functional error due to
the deformation of the upper electrode film.
b) Flexible material such as rubber is recommended as cushioning materials. It should be placed outside of
visible area. If it is placed onto inactive area, it may cause a functional error due to deformation
of
the upper electrode film.
2. Assemble design
a) Do not glue nor tape system front chassis to the surface of touch panel(upper electrode fam) as it may
lead to peeling off of the upper electrode film
b) Make sure not to swell the upper electrode film by atmospheric pressure difference between inside and
outside of the system. If it is swelled, it may cause a deterioration of durability of the touch panel and
may cause a functional error.
c) Prevent vapor condensation to the touch panel. Do not expose the touch panel to high humidity
Atmosphere, vaporous air, or to any liquid such as water. It may cause a leakage inside the touch panel
structure:
Upper electrode film and lower electrode glass are fied by adhesive, and there is a ventilation
hole
between film and glass. Liquid penetrate into touch panel easily due to this structure. Design the system
carefully so that liquid will not penetrate into touch panel.
SPEC
SHARP
LC99908
Assembling
*
No.
iMODEL
No.
PAGE
LM057QCTT03
5
LCD module with touch panel
1. Unpacking
a) Do not hold nor pull flex cable. otherwise it may cause a breakage of the flex.
b) Glass edge of touch pane1 is not treated It is sharp edge and it may cause an injury when handled
by bare hands. Wear finger sacks or groves and handle with extra care.
2. Handling
a) Do not pick up the visible area or flexible tail.
b) Do not stack up the LCD module. Do not place anything on the LCD module. It may cause scratch,
deformation
or breakage.
c) Wipe a dirt on the screen with dry soft cloth If it is still sticked, wipe it out with soft cloth with
ethyl alcohol. Upper electrode film and lower electrode glass of touch panel are fixed by adhesive
and there is a ventilation
hole in between. Be careful not to have ethyl alcohol may penetrate into
touch panel. It may cause a functional error.
3. Assembling
a) Be careful not to apply excessive distortion on heat sealed area of the flex cable. It may cause a
functional error.
b) Be careful not to scratch the front of touch pane1 during assembly process.
4. Operating instruction
a) Use a finger or a polyacetal pen to access to touch panel. The surface of the touch panel film
is hard coat treated. This hard coating may be damaged if it is touched by a ball-point
pen or
metal piece.
b) Do not expose the LCD module to the direct sun-light for long period of time. Polyester film is
used as the front film of the touch panel, exposure to direct sun-light for long time may cause
a discoloration
c) If a chemical material stays on the touch panel for long period of time, front film may be swelled
and may cause a functional error. If it is planned to be used under severer circumstances, very
careful protection is required
SPEC
SHARP
No.
LC99908
MODEL
No.
PAGE
LM057QCTI'03
Page
OContents
1. Application
7
2. Construction and Outline
7
3. Mechanical Specifications
7
4. Absolute Maximum
Ratings
5. Electrical Specifications
6. Module driving method
15
7. Optical Characteristics
17
8. Characteristics of Backlight
20
9. Touch panel specification
21
10. Supply voltage sequence condition
11. Outline dimension
22
23
6
MODEL No.
SPEC No.
SHARP
PAGE
'LM057QCTT03
LC99908
7
l.Application
This data sheet is to introduce the specification of LM057QCTT03,negative
Matrix type Color LCD module.
2.Construction and Outline
Construction: Touch panel and 320 X RGB X 240 dots color display module consisting of an LCD panel,
PWB@rinted wiring board) with electric components mounted, TCP(tape carrier package) to connect the LCD panel
and PWB electrically, and plastic chassis with CCFT’ back light and bezel to hold them mechanically. Signal
ground(Vss) is connected with the metal bezel.
TCP
Touch
panel
Bezel
LCD Panel
PUB
/
II /
-WI
II
,
I
1
Light
-
I
0
pipe
/ fl
CCPT /
B?
/
Application
-G&JOutline
:See Fig. 13
Connection
:See Fig. 13 and Table 6
inspection standard
The LCD module shall meet the following inspection standard :
3.Mechanical
Specification
Parameter
unit
Specifications
Outline dimensions *l
154.6+0.5(W)
x 114.8*0.5(H)x
9. 85*0.7(D)
nlm
Viewing area
118.2(W) X 89.4(H)
nun
Active area
115.18(W) X86.38(H)
mm
Display format
320 X RGB(W) X240(H)
Dot size
0.1 X RGB(W) X0.34(H)
Dot spacing
0.02
Base color *2
Normally black
Mass
Approx. 250
mm
mm
t3
*1
Due to the characteristics of the LC material, display colors may vary with ambient temperature.
*2
Negative-type
display
Display data
“H”
-+ Display
ON =
white
Display data
“L”
-+ Display
OFF =
black
MODEL No.
SPEC No.
@HARP
LM057QCTT03
LC99908
4. Absolute Maximum
ClXlectrical
Ratings
absolute maximum
4-2Xnvironment
PAGE
ratings
Conditions
Ambient temperature , humidity conditions
Tstg
Topr
Item
MAX.
MIN.
MAX.
0 “C
+50 “c
-25 “c
+6O”C
Ambient temperature
Humidity
Note 1)
Remark
MIN.
Note 1)
No condensation
Note 2)
The display module should not be operated nor stored outside of specified temperature
range.
Note 2)
Tas40
“c . .. . . .. 95 % RI-I Max.
Ta>40
“c . .. . . ..Absolute humidity
shall be less than Ta=40
“C/95 % RI-I.
Vibration conditions
Frequency
10 Hz-57
Hz
57 Hz-500
Vibration level
9.8 m/s’
Vibration width
0.075 mm
Interval
10 Hz-500
2 hours for each direction of XN/Z
(6 hours as total)
Shock conditions
Acceleration
: 490 m/s’
Pulse width
:
Hz-10
11 ms
3 times for each directions of * X/ + Y/t Z
HGl.0
min
Hz
8
SPEC
SHARP
No.
LC99908
5. Electrical Specifications
5-l.Electrical
characteristics
Supply voltage (LCD)
Note 1) Frame frequency = 75 Hz.
Note 2) Frame frequency = 75 Hz V,, - Vss = 26.1V, V,, = 5 V
Display pattern = checker flag pattern
1 2 3 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . gfjo
1
clm0mclmclm0mcim0m0wclmclm
2
3
n amclm0mclB0m0m!Jmnm0mcl
q m0mclmclm0mclm0m0mclm0m
.
¤omnmam0m0m0mnm~a0m0
239
clmclm0mumclmclmlJm0BiJBclm
240
n nm0mc!mclmciB0m0m0mclmcl
Note 3) Except Lamp power consumption.
(*See Page 20)
MODEL
No.
LM057QCTT03
PAGE
9
SPEC
No.
LC99908
Supply voltage (LCD)
Iuput signal voltage
Note 1) Frame frequency = 75 Hz.
Note 2) Frame frequency = 75 Hz, V,, - Vss = 26.1V, V,,, = 3.3V
Display pattern = checker flag pattern
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 960
1234
1
lJm0m0mclm0mclmamclmc!mclm
2
239
n 0m0m0m0m3m3mnmnmamn
q m0mnm0m0m0mnmamnm0m
n 0mnm0m0mnmamum0m0m0
q m0mnm~m0m0m0mnmnmam
240
¤0mnm0m0m0mnm0mnm0m~
3
.
Note 3) Except Lamp power consumption.
(*See Page 20)
MODEL
No.
LM057QC'I"l!03
PAGE
10
SPEC No.
SHARP
..
5-2
LC99908
MODEL
No.
PAGE
11
LM057QCTT03
Interface signals
0 LCD
Display data signal
0 CCFT
e7
No.
Symbol
VLl(HV)
1
2
3
“H” (ON),
“L”(Oq
CN? tCCFQ
Description
Note
High voltage line(fiom Iuverter)
for back light
NC
VL2(GND)
Ground line(from Inverter)
OTO
:
Used
connector
CNl : 53216-1510
(M0I-W
CN2 : BHR-03VS-1
(‘S-4
CN3 : FPC Ag/C Conductor
Correspondable connector
CNl : 51021-1500
(MO=9
CN2 : SM02-(8.0)B-BHS-1
(‘ST)
CN3 :SFWJR-5STE
(Display functions and reliabilities
WI)
are not guaranteed for the usage of unspecified mating connectors.)
MODEL No.
SPEC No.
SHARP
PAGE
LA4057QCTT03
LC99908
12
53.Interface timing
LP
’
‘40
pulses
>r
//
N
DO
1”
2”
line’s
I
line’s
data
data
I
XCK
l
320
*(3/g)
oulses
I
7
1
nnr
FiP
7
Tnterface
.
tlm
.
InP
COLUMN
------------------------
(2,319)
320 x 3(RGB)
x 240 dots
(240,l)
(240,2)
Fig.3 Dot chart of disDlav area
(240,319)
(2,3
4
0):
(240,320)
,
iMODEL No.
SPEC No.
SHARP
Ta=25 “C,VDD
Input
signal rise/fall time*1
Note 1) Due to the characteristics
13
LMO57QCTT03
LC99908
XCK 1 allowance time from LP f
PAGE
tLH
t,*tr
= 5.0 Vr5
%(3.3V t5
%)
200
-
-
lx3
-
-
13
ns
of the LCD module, “shadowing” effect becomes more visible as frame
refresh frequency goes up. And also contrast ratio goes down and flickering becomes more visible as
flame refresh frequency goes down. It is recommended to drive the display module according to
the specified conditions.
Recommended
frame refresh frequency range is 70 Hz-
80 Hz.
Note 2)LP signal must be continuous. And also its interval time from the falling edge to the rising edge must
always be same and no greater than 70 cr s.
MODEL
SPEC No.
SHARP
LC99908
PAGE
No.
14
LM057QCTT03
YD -
t WLPH
<
r
t
7
LP
CK
<
tr
t LS
<
xc
\
/
/
\
tWCKH
t LH
>
<
VIH=0. av,,
DO-7
v,, = 0. zv,,
Fig.4 Interface timing chart
tWCKL
>
I
SPEC No.
SHARP
MODEL No.
LC99908
PAGE
15
LM057QCTT03
6. Module Driving Method
6-1. Input data’and control signal
One SEG(segment=column)driver
is a 240 bit output LSI, consisting of shift registers, latch circuits and
LCD driver circuits.
Input data for each row (320 X 3[R,G,E?]) will be sequentially transferred in the form of 8 bit parallel
data through shift registers by data transfer clock signal (XCK). When data transfer for one row (320 X
3[R.,G,B])
is completed, the data will be latched in the form of 320 x 3 parallel data corresponding to each
column electrodes by the falling edge of latch signal (LP), then the drive pulses will be output to 320 X 3
lines of column electrodes of the LCD panel by the LCD drive circuits.
At the same time. row N is selected by scan start-up signal (YD) and the contents of the data signals are
displayed on the row N of the display screen according to the combinations of voltages applied to row and
column electrodes. While the data row N are being displayed, data for row N+l are transferred After 320 X 3
data have been transferred, data will be latched by the falling edge of LP and output the data to the row N+l.
Bach row will be sequentially selected as described above from N=l to N=240. One frame is completed
after displaying 240”’ row. Then row scan starts from the 1st row again YD is the scan signal which drives
row electrodes.
If DC voltage is applied, it causes a chemical reaction in LC material and causes a deterioration
of LC
material. So, the polarities of driving pulses must be alternated by certain time period. Control signal M is
the signal which changes the polarity of driving pulses.
Power consumption of the LCD module goes up as clock(XCK)
frequency goes up due to the nature of
CMOS LSI used in it. This display module has 8 bit parallel data input so that it works at low clock frequency
and rninin&e
power consumption. 8 bit display data are assigned to DO-7.
This display module also has a bus line system for data input to minimize the power consumption.
Data input
of each LSI driver works only when data is accessed
Data Input for column electrodes and Chip Select of driver LSI work as follows:
The driver LSI at the left end of the screen is selected first and 240 bits of data(30 x XCK) are transferred to itAfter transferring 240 data, the adjacent right side LSI right is selected. This process is sequentially continued
until data is fed to the LSI at the right end of the screen. Thus display data is transferred sequentially through
8 bit bus line from the left to the right of the screen.
/
8
1
SHARP
SPEC No.
LC99908
MODEL No.
LM057QClT03
PAGF;
16
As this display module does not have display refresh RAM, display data and timing control signals must
be supplied continuously.
The timing chart of input signals are shown in Fig. 4 and Table 9.
SPEC No.
SHARP
7.
iMODEL No.
LC99908
PAGE
LM057QCTT03
17
Optical Characteristics
Contrast ratio
co
Response
Rise
r r
time
Decay
rd
Brightness
B
Module
chromaticity
white
e x=e,=o
o
e,=e,=o
0
e x=e,=o
o
e,=ey=o 0
JL = 6.0 mA
25
40
_.
450
600
ms
-
100
130
ms
120
1.50
-
cd/m’
-
X
e,=e,=o
o
0.28
0.33
0.38
-
Y
e .=e,=o
o
0.29
0.34
0.39
-
Note2)
Note3)
Note4)
tey
.
tex
-eY
-eY
of View
Note 1)
The viewing angle range is defmed as shown Fig.5
Note 2)
Contrast ratio is defined as follows:
co
Luminance( brightness) of all pixels “White” at Vmax
Luminance(
brightness)
of all pixels ” Dark ” at Vmax
Vmax is defined in Fig.7.
Note 3)
The response speed of LCD module is defined as the response characteristics of photo-detector
output
shown in Fig.6 when the measured dot is turned on and off in the setting shown in Fig.8
No&)
Luminance is defined as average luminance (brightness) of measuring points (a>-@)
All pixels of LCD are “white’.
at Vmax.
SPEC
SHARP
MODEL
No.
PAGE
No.
18
LM057QCTT03
LC99908
Co max
L/
I
Field: 2 ’
te
Vma
Vbl
x
Measuring Spot Size : 4 10 mm
8x:
Angle from “normal”
to measuring direction along the horizontal axis.
By:
Angle from “normal”
to measuring direction along the vertical axis.
Fig.6
Optical Characteristics Test Method
Fig.7 Definition
I
of Vmax
(Response Speed Measurement)
Ta = 25 “C
In the dark room
TOPCON
(Measuring
BM7 + quartz fiber
spot size : 9 10 mm, Measuring Field : 2 ’ )
eY(+),,
\
80 mm
\ /
LCD Module
Fie. 8 Outical Characteristics Test Method
D[
Computer
I
t age
)
MODEL No.
SPEC No.
SHARP
LM057QCTT03
LC99908
l/240
D uty
rr:
Rise time
rd:
Decay time
XCK
7
4
SEG
Drv.
YD
X+,Y+.X-,Y-
Touch panel
CCFT
L
Inverter
I
*Signal
ground(Vss)
19
Ratio
. ..
efrnttlon
nn-
is connected
.lO Circuit block diaorm
with
I
PAGE
the metal
i
SPEC
&iARP
MODEL
No.
PAGE
LM057QClT03
LC99908
I
I
8.Characteristics
No.
20
I
of Backlight
The ratings are given on condition that the following conditions.
1)
Rating(Note)
L
Parameter
MIN.
TYP.
Brightness
120
150
cd/m’
2)
Measurement circuit
:
CXA-MlOL(TDK)
(at
3)
Measurement equipment :
BM-7 (TOPCON
Corporation)
4)
Measurement conditions
4-l.
Measurement circuit voltage : DC = 12.OV,
4-2.
LCD: AI1 digits WHITE,
l/tFRM
4-3.
Vat,= 5.0 V(3.3V),
unit
MAX
IL = 6.0 m4rms)
at primary side
V,, = Vmax, D7-0
:“H”(White)
= 75 Hz
Ambient temperature : 25 “C
Measurement shall be executed 30 minutes after turning on.
5)
5-l. Rating (lpc)
*1
It is recommended that IL is no greater than 6 mArms so that the effect of heat radiation from CCFT
backlight on display quality is minimized
*2
Power consumption
excluded inverter efficiency loss.
*3
The output voltage of the inverter should be set to Vs adding some margin as Vs of CCFT bulb may
be increased due to AC coupling leakage to the chassis of the LCD module.
*4
Average life time of CCFT bulb will be decreased when LCD is operated at lowtemperature.
/
MODEL No.
SPEC No.
SHARP
PAGE
LM057QCTT03
LC99908
6) Operating life
The operating life time is 25 000 hours or more at 6 mArms, 25 + 1°C
(Operating life with CXA-MlOL
or quivalent.)
The inverter should meet the following conditions to keep the specified life time of used lamp;
-Sine wave form, symmetric in positive and negative, no ripple or spike pulse
-Output frequency range:
4Oh-80 kH2
Check well that CCFT works properly with enough aging time.
The operating life time is defined as the time either of following conditions are met.
-When the luminance or amount of light output is decreased to 60 % of the initials value.
-When the kick-off voltage reaches Maximum
(NOTE)
value in Table 11.
Ratings are defined as the average brightness inside the viewing area specified in Fig.11.
60
180
dots
I
I
80
160
I
240
dots
(l-5)
Activation
Surface hardness
Optical clarity
Finger
-
0.5
N
Stylus
-
0.5
N
-
-
-
so
-
%
2H
21
I
SPEC No.
SHARP
rMODEL No.
IX99908
PAGE
LM057QCTT03
10. Supply voltage sequencecondition
The power ON/OFF sequenceshown on Fig. 12 must be kept to avoid latch-up of driver LSI and
DC voltage charge to LCD panel.
500
ms
MIN.
(Note 1)
V DD
YD
LP
XCK
DATA
DISP
VEE
-+-i..
Se-n
Symbol
a
b
c
.
d
e
POWER ON
Allowable value
OmsMIN.
1sMAx.
20 ms MIN.
100 11sMAX
0 ms MIN.
0 ms MIN.
Symbol
f
g
h
i
POWER OFF
Allowable value
0 ms MIN.
1SMAX.
20msMIN.
20 ms MIN.
0 ms MIN.
Note 1) Power ON/OFF cycle time. All signals and power lines must be switched in accordancewith above
sequenceduring power ON/OFF cycle.
22
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908
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CTOR
: BHR-03~S-1
(JST)
0 TOL
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to.
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