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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
DEM 240320E TMH-PW-N
2,4” TFT with Touch-Panel
Display Elektronik GmbH
LCD MODULE
(A-TOUCH)
16/07/2010
Product Specification Ver.: 2.1.1
13.12.2013
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
Revise Records
Rev. Date Contents Written Approved
0 10.01.2011
1 15.12.2012 Updated LED current and luminance MH MH
2.1.1 22.05.2013
2.1.1 13.12.2013
Special Notes
Note1.
Note2.
Note3.
Note4.
Preliminary Specification CL MH
Change TFT-Panel MH MH
Update Block Diagram MH MH
Note5.
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
CONTENT
1. LCM DRAWING
2. GENERAL DESCRIPTION
3. MECHANICAL SPECIFICATIONS
4. ELECTRO-OPTICAL CHARACTERISTICS
5. BLOCK DIAGRAM
6. ELECTRONIC CHARACTERISTICS
7. PINS DESCRIPTION
8. INSTRUCTION DESCRIPTION
9. BACKLIGHT PARAMETERS
10. PRODUCT QUALITY & RELIABILITY
11. PRECAUTIONS IN USING
12. APPLICATION
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
1. LCM DRAWING
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
2. GENERAL DESCRIPTION
MAIN TECHNICS： COG
DISPLAY CONTENT： GRAPHIC
DISPLAY TYPE： 262K COLORS-TFT-NEGATIVE-TRANSMISSIVE
DRIVER METHOD： 1/320 DUTY
VIEWING DIRECTION： 12:00
CONTROLLER: R61580 (RENESAS)
BACKLIGHT： LED WHITE
OPEATING TEMPERATURE： -20℃ to +70℃
STORAGE TEMPERATURE： -30℃ to +80℃
INTERFACE: SPI and 8080 Series MPU (8/16-bit)
3. MECHANICAL SPECIFICATIONS
ITEM CONTENT UNIT
PIXEL’S NUMBER 240 x RGB x 320 DOTS
MODULE DIMENSION 42.72 x 60.26 x 4.35 mm
ACTIVE AREA 36.72 x 48.96 mm
PIXEL SIZE 0.153 x 0.153 mm
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4. ELECTRO-OPTICAL CHARACTERISTICS
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
5. BLOCK DIAGRAM
2.4"TFT
240( RGB)X 320dots
6. ELECTRONIC CHARACTERISTICS
6.1 MAXIMUM VALUES
ITEM SYMBOL
Logic Supply Voltage VDD -0.3 +4.6 V
Operating Temperature Top -20 +70 °C
Storage Temperature Tst -30 +80 °C
STANDARD VALUE
MIN MAX
UNIT
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6.2. DC CHARACTERISTICS
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
6.3. TIMING CHARACTERISTICS
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
7. PINS DESCRIPTION
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
8. INSTRUCTION DESCRIPTION
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
Item S
ymbol
Condition
Rating
Unit O
perating
Temperature
Range T
opr -20~+70 °C Storage
Temperature
Range Tst -30~+80 °C
Item Symbol
min typ max Unit Condition
Forward Voltage
Vf
2.9 3.2 3.5 V If=60mA
Luminance
Lv
3500
cd/
m
2
If=60mA
X 0.26 0.30
9. BACKLIGHT PARAMETERS
9.1 ABSOLUTE MAXIMUM RATINGS
(Unless specified, The Ambient temperature Ta=25℃)
9.2 ELECTRICAL/OPTLCAL CHARACTERISTICS
(Unless specified, The Ambient temperature Ta=25℃)
Color Coordinate
Y
0.26 0.30
If=60mA
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
10. Product Quality & Reliability
10.1 Standard for Quality Test
10.1.1 Inspection :
Before delivering, the supplier should take the following tests, and affirm the quality of
product.
10.1.2 Electro-Optical Characteristics:
According to the individual specification to test the product.
10.1.3 Test of Appearance Characteristics:
According to the individual specification to test the product.
10.1.4 Test of Reliability Characteristics:
According to the definition of reliability on the specification for testing products.
10.1.5 Delivery Test:
Before delivering, the supplier should take the delivery test.
A. Test method: According to GB/2828,General Inspection Level Ⅱ take
a single time.
B. The defects classify of AQL as following:
Major defect: AQL=0.25
Minor defect: AQL=1.0
Total defects: AQL=1.0
10.2 Standard for inspection
10.2.1 Manner of appearance test:
a. The test must be under a 40W fluorescent light, and the distance of view must be
at 30~35 cm.
b. When test the model of transmissive product must add the reflective plate.
c. The test direction is base on about around 45° of vertical line.
10.2.2 Definition of area: A B
A Area : Viewing area.
B Area : Out of viewing
area.(Outside viewing area)
10.2.3 Basic principle:
A. In principle the defect out of Area A should be acceptable if the defect does not
affect assemblage and the quality of productions.
A
B
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
B. If defects that can not describe clearly, acceptable samples will be the standard.
C. The sample of the lowest acceptable quality level must be discussed by both
supplier and customer when any dispute happened.
D. Must add new item on time when it is necessary.
10.2.4 Standard of inspection
Defect Inspect item
Scratch and fold on polarizer.
Scratch on glass.
1
Minor
Glass fiber etc.
（by bare eyes，defect outside A
area is acceptable）
Defect Inspect item
Chip on glass(round type)
Chip on polarizer(round type)
Air bubble between polarizer
2
Minor
and glass
Criteria
1) width ≤ 0.02 mm length ignore
acceptable
2) 0.02 mm<width≤0.05 mm
length≤3 mm two are acceptable
3) width>0.05 mm reject
Criteria
Ф≤0.1mm acceptable
0.1<Ф≤0.2mm two are acceptable
1.The distance between any two dots should
be more than 5mm.
a
2.Defect outside A area is acceptable.
b
Ф=(a + b)/2
Defect Inspect item
Chip out
x
y
3
Minor
x: length
y: width
z: thickness
Defect Inspect item
3.If the air bubble is black, it can be judged
as black spot.
Criteria
x≤3 mm z≤t y≤1/3 s reject
z
t: glass thickness.
S: distance between glass edge and inside of
edge sealing
Criteria
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
X Y Z
D
x
y
z
D
Chip on corner of neat edge
y
z
4
Minor
x
X: length Y: width
S: width of edge sealing
Defect Inspect item
Chip on corner of terminal edge
5
Minor
x≤3 mm y≤3 mm z≤t
acceptable
any chip exposes the silver dot reject
Criteria
x<0.3 mm or y<0.3 mm ignore
x≤3 mm y<D two are acceptable
D: terminal length
Defect Inspect item
Chip on opposite side of
terminal
6
Minor
Defect Inspect item
Cutting/breaking defect (flare)
7
Minor
Criteria
a≥80mm，x≥7mm reject
a<80mm， x>5mm reject
y>1/2D reject
z>1/2t，y>1/4D reject
D: terminal length
Criteria
According to the dimension of drawing
Defect Inspect item
Criteria
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
The soldering tin covers whole bump
Crack
8
Minor
Defect Inspect item
9
Major
Defect Inspect item
10
Minor
Defect Inspect item
Liquid leakage, open sealant reject
Rainbow According to samples
Any crack trend to extend reject
Criteria
Criteria
Criteria
11
Major
Defect Inspect item
12
Minor
Defect Inspect item
13
Minor
Defect Inspect item
FPC、TCP、FLEX are broken or
not connected firmly
The component on PCB or FPC
is missing ,soldered unfirmly or
bridged
The soldering tin is not enough The height that soldering tin covers the
reject
Criteria
reject
Criteria
bump of component is 1/2 less than the
height of bump reject
Criteria
14
Minor
Defect Inspect item
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The soldering tin overflows
reject
Criteria
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
15
Minor
Defect Inspect item
16
Minor
Defect Inspect item
17
Minor
Defect Inspect item
18
Minor
The component is broken reject
The shape of pinouts is not the
same as that in the criterion
The pinout is broken reject
The frame is scratched visibly Length ignore
Criteria
It makes the LCM work badly reject
Criteria
Criteria
Width >0.5mm reject
Defect Inspect item
The frame is rusted
19
Minor
Defect Inspect item
20
Minor
Defect Inspect item
(accumulation)
Scratch and fold on touchpanel.
（by bare eyes，defect outside A
area is acceptable）
Criteria
When the shape is as dot,reference
to defect 23
When the shape is as line,reference
to defect 24
Criteria
1) width≤0.02 mm acceptable
2) 0.02 mm<width≤0.05 mm
length≤5 mm two are acceptable
3) width>0.05 mm reject
Criteria
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
Black & white dots on
touchpanel (round type)
Air bubble on touchpanel
21
Minor
Ф=(a + b)/2
b
Defect Inspect item
22
Touchpanel warps According to the dimension of drawing.
Minor
Defect Inspect item
23
Dirty on rear of touchpanel It’s visible at condition of30±5 cm, 45°
1) Ф≤0.1 mm acceptable
2) 0.1<Ф≤0.3 mm three are acceptable
3) Ф>0.3 mm reject
1.The distance between any two dots should
be more than 5mm.
a
2.Defect outside A area is acceptable.
3.If the air bubble is black, it can be judged
as black spot.
Criteria
Criteria
Minor
Defect Inspect item
24
Dirty on rear of touchpanel It’s visible at condition of30±5 cm, 45°
Minor
Criteria
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
10.3 RELIABILITY
Item Condition Criterion
High temperature operation 70℃， 96 hrs -Cosmetic defects are not allowed
Low temperature operation -20℃， 96 hrs
Moisture storage 60℃，90%RH, 96 hrs
High temperature storage 80℃， 96 hrs
Low temperature storage -30℃， 96 hrs
Thermal shock -30℃ (30 minute)
25℃ (5 minute)
80℃ (30 minute)
CYCLES: 10
after the test(Polarizer change is
exceptional)
-Contrast ratio change over 50% of
initial value should not be happened
-The current consumption should
be below double of initial value
-Brightness decrease should be
lower than 50% of initial value
LIFE TIME 50,000 hours, 25±10℃,
45±20% RH
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
11. PRECAUTIONS IN USING
11.1 Liquid crystal display (LCD)
The LCD panel is made up of glass, organic fluid and polarizer. When handling,
please pay attention to the following items:
1) Keep the operation and storage temperature of the LCD within the range
specified in the LCD specification. Otherwise, excessive temperature and
humidity would cause polarization degradation, bubble generation or polarizer
peel-off.
2) Prevent it from mechanical shock by dropping it from a high place, etc.
3) Don’t contact, push or rub the exposed polarizers with anything harder than
HB pencil lead.
4) Avoid using chemicals such as acetone, toluene, ethanol and isoropylalcohol
to clean the front/rear polarizers and reflectors, which will cause damage to
them.
5) Wipe off saliva or water drops immediately. Contact with water over a long
period of time may cause deformation or color fading. The LCM is assembled
and adjusted with a high degree of precision.
6) Do not put or attach anything on the display area. Avoid touching the display
area with bare hand.
11.2 Precaution for handling LCD modules
The LCM is assembled and adjusted with a high degree of precision, do not applying
excessive shocks to it or making any alterations or modifications to it, the following
precautions should be taken when handing.
1) Do not drop, bend or twist the module.
2) Do not alter or making any modification on the shape of the metal frame.
3) Do not change the shape, the pattern wiring or add any extra hole on the PCB.
4) Do not modify or touch the zebra rubber strip(conductive rubber) with another
object.
5) Do not change the positions of components on the PCB.
11.3 Electro-static discharge control
Careful attention should be paid to control the electrostatic discharge of the modules,
since the modules contain no. of CMOS LSI.
1) Make sure you are grounded properly when remove the module from its
antistatic bag. Be sure that the module and have the same electric potential.
2) Only properly grounded soldering iron should be used.
3) Modules should be stored in antistatic bag or other containers resistant to
static after remove from its original package.
4) When using the electric screw-driver is used, make sure the screw driver had
been ground potentiality to minimize the transmission of EM wave produced
by commutator sparks.
5) In order to reduce the generation of static electricity, a relative humidity of
50-60% is recommended.
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
11.4 Precaution for soldering
1) Soldering should apply to I/O terminals only.
2) Soldering temperature is 280℃+(-)10℃.
3) Soldering time 3-4 seconds.
4) Eutectic solder (rosin flux filled) should be used.
5) If soldering flux is used, be sure to remove any remaining flux after
finishing the soldering operation and LCD surface should be covered
during soldering to prevent any damage to flux spatters.
6) When remove the lead wires from the I/O terminals, use proper
de-soldering methods, e.g. suction type de-soldering irons. Do not repeat
wiring by soldering more than three times at the pads and plated though
holes may be damaged.
11.5 Precaution for operation
1) Adjust liquid crystal driving voltage (Vo) to varies viewing angle and
obtain the contrast.
2) Vo should be kept in proper range stated in the specification. Excess
voltage will shorten the LCD life.
3) Response time is greatly delayed at low temperature. It will recover when
go back to normal temperature.
4) Condensation on terminals can cause an electrochemical reaction
disrupting the terminal circuit. Therefore it should be used under the
relative condition of 50% RH.
11.6 Storage
When long term storage is required, following precautions are necessary:
1) Storage them in a sealed polyethylene bag (antistatic), seal the opening,
and store it where it is not subjected to direct sunshine, or to the light of
fluorescent lamp. If properly sealed, there is no need for desiccant.
2) Store them in the temperature range of -30℃~80℃ and at low humidity is
recommended.
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12. APPLICATION
12.1 REFERENCE CIRCUIT
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12.2 APPENDIX
INITIALIZATION FOR REFERENCE (MPU: AT89C512):
void LCD_Init()
{
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
delay(100);
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x00);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0xA4);LCD_DataWrite(0x0001);
delay(100);
LCD_CtrlWrite(0x60);LCD_DataWrite(0xA700);
LCD_CtrlWrite(0x08);LCD_DataWrite(0x0808);
/******************************************/
//Gamma Setting:
LCD_CtrlWrite(0x30);LCD_DataWrite(0x0203);
LCD_CtrlWrite(0x31);LCD_DataWrite(0x080F);
LCD_CtrlWrite(0x32);LCD_DataWrite(0x0401);
LCD_CtrlWrite(0x33);LCD_DataWrite(0x050B);
LCD_CtrlWrite(0x34);LCD_DataWrite(0x3330);
LCD_CtrlWrite(0x35);LCD_DataWrite(0x0B05);
LCD_CtrlWrite(0x36);LCD_DataWrite(0x0005);
LCD_CtrlWrite(0x37);LCD_DataWrite(0x0F08);
LCD_CtrlWrite(0x38);LCD_DataWrite(0x0302);
LCD_CtrlWrite(0x39);LCD_DataWrite(0x3033);
/******************************************/
//Power Setting:
LCD_CtrlWrite(0x90);LCD_DataWrite(0x0018);//80Hz
LCD_CtrlWrite(0x10);LCD_DataWrite(0x0530);//BT,AP
LCD_CtrlWrite(0x11);LCD_DataWrite(0x0237);//DC1,DC0,VC
LCD_CtrlWrite(0x12);LCD_DataWrite(0x01BF);
LCD_CtrlWrite(0x13);LCD_DataWrite(0x1000);//VCOM
delay(200);
/******************************************/
LCD_CtrlWrite(0x01);LCD_DataWrite(0x0100);
LCD_CtrlWrite(0x02);LCD_DataWrite(0x0200);
LCD_CtrlWrite(0x03);LCD_DataWrite(0x1030);
LCD_CtrlWrite(0x09);LCD_DataWrite(0x0001);
LCD_CtrlWrite(0x0A);LCD_DataWrite(0x0008);
LCD_CtrlWrite(0x0C);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x0D);LCD_DataWrite(0xD000);
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DEM 240320E TMH-PW-N(A-TOUCH) Production Specification
LCD_CtrlWrite(0x0E);LCD_DataWrite(0x0030);
LCD_CtrlWrite(0x0F);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x20);LCD_DataWrite(0x0000);//H Start
LCD_CtrlWrite(0x21);LCD_DataWrite(0x0000);//V Start
LCD_CtrlWrite(0x29);LCD_DataWrite(0x002E);
LCD_CtrlWrite(0x50);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x51);LCD_DataWrite(0x00EF);
LCD_CtrlWrite(0x52);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x53);LCD_DataWrite(0x013F);
LCD_CtrlWrite(0x61);LCD_DataWrite(0x0001);
LCD_CtrlWrite(0x6A);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x80);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x81);LCD_DataWrite(0x0000);
LCD_CtrlWrite(0x82);LCD_DataWrite(0x005F);
LCD_CtrlWrite(0x93);LCD_DataWrite(0x0701);
/******************************************/
LCD_CtrlWrite(0x07);LCD_DataWrite(0x0100);
delay(100);
}
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