Illuminant
Illuminant


I2421-7IBN2432B

TFT LCM


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ILLUMINANT 北極光企業有限公司
PRODUCT SPECIFICATION FOR TFT LCM
CUSTOMER:
MODEL NO:
I2421-7IBN2432B
ACCEPTED BY:
APPROVED BY: CHECKED BY: ORGANIZED BY:
2010-3-23
Long
2010-3-23
Vicky
2010-3-23
Vicky
Approval for Specifications Only
Approval for Specifications and Sample
Note: 1. Version of Specifications : 1
2. Others: Rohs Compliment
TAIWAN
1F, #15, LANE 75, MIN CHUAN E. RD., SEC 3, TAIPEI, TAIWAN.
Tel +886-2-25175115 Fax +886-2-25175099
CHINA
5F DONGWU COMMERICAL BLDG., LANSHAN RD., NORTH DISTRICT, HI-TECH INDUSTRIAL PARK, SHENZHEN, PRC.
TEL + 86-755-86154466 FAX +86-755-86154366
KOREA
RM 1201, IT MIRAE TOWER, 60-21, GASAN-DONG, GEUMCHEON-GU, SEOUL, 153-801, KOREA
TEL + 82-2-2027-5391~2 FAX +82-2-2027-5393
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ILLUMINANT
Version
1
Date
10/03/23
Contents
Initial Release
I2421-7IBN2432B
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ILLUMINANT
CONTENTS
1. Mechanical Specification
2. Absolute Maximum Ratings
3. Electrical Characteristics
4. Optical Characteristics
5. Interface
6. Block Diagram
7. Timing Characteristics
8. Backlight
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ILLUMINANT
1.Mechanical Specification:
Item
Display size
Module Dimension
Active Area
Number of Dots
Pixel Pitch
LCD Type
Viewing Direction
Driver
Approx. Weight
Various Color Display
Brightness
Backlight Type
Backlight Color
Standard Value
2.4
42.72(W)*60.26(H)*2.55MAX(D)
36.72(W)*48.96(H)
240RGB*320Dots
0.153(W)mm*0.153(H)mm
Normally White
12H
ILI9335
TBD
262
200
4-LED Parallel
White
Unit
inch
mm
mm
Dot
mm
-
-
-
g
k
cd/m2
I2421-7IBN2432B
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ILLUMINANT
I2421-7IBN2432B
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ILLUMINANT
2.Absolute Maximum Ratings:
Item
Supply Voltage for Logic
Input voltage
Operating Temperature
Storage Temperature
*NOTE: Based on Vss=0V.
Symbol
VDD
Vin
TOP
TST
Min.
-0.3
-0.5
-20
-30
Typ. Max. Unit Remark
+4.0 V
VDD+0.5 V
- +70 -
- +80 -
3.Electrical Characteristics:
Item
Supply Voltage for Logic
High-Level Input voltage
Low-Level Input voltage
TFT Gate ON Voltage
TFT Gate OFF Voltage
Power Supply Current for VDD
Symbol Condition Min. Typ.
VDD Ta=252.2 2.8
VIHC VDD=3.0V 0.8VDD
VILC VDD=3.0V -0.3
VGH VDD=3.0V --
15
VGL VDD=3.0V --
-10
IDD VDD=3.0V -
8.5
Max. Unit
3.3 V
VDD
0.2VDD
-- -
-- V
mA
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ILLUMINANT
4. Optical Characteristics:
Parameter
Luminance
Contrast Ratio
Response time
*1) Viewing angle
Symbol
I
C/R
Tr+Tf
Θl
Θr
Θu
Θd
Min.
180
200
-
-
-
-
Typ. Max.
200
250
30 50
40 -
40 -
40 -
40 -
Unit
cd/m
ms
Degree
Note
Fig.3
C/R>10
Fig.4
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ILLUMINANT
Notes :
1. Contrast Ratio(CR) is defined mathematically as :
Surface Luminance with all white pixels
Contrast Ratio = ----------------------------------------------------------------------------
Surface Luminance with all black pixels
2. Surface luminance is the center point across the LCD surface 500mm from the surface with all
pixels displaying white. For more information see FIG 1.
3. Response time is the time required for the display to transition from to black(Rise Time, TrR)
and from black to white(Decay Time, TrD). For additional information see FIG 3.
4. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are
determined for the horizontal or x axis and the vertical or y axis with respect to the z axis
which
is normal to the LCD surface. For more information see FIG 5.
5. Optimum contrast is obtained by adjusting the LCD Threshold voltage(Vth & Vsat)
FIG. 1 Optical Characteristic Measurement Equipment and Method
Optical Stage(x,y)
LCD CELL
Field = 2 °
BM-7
500mm
<Transmissive Mode>
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ILLUMINANT
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ILLUMINANT
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ILLUMINANT
5. Interface:
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Symbol
DB0
DB1
DB2
DB3
GND1
VCC1
/CS
RS
/WR
/RD
IM0
NC
NC
NC
NC
LEDA
LEDK1
LEDK2
LEDK3
LEDK4
NC
DB4
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
/RESET
VCI
VCC2
GND
DB5
DB6
DB7
Function
DATA BUS
DATA BUS
DATA BUS
DATA BUS
GROUND
POWER SUPPLY
CHIP SELECTION
COMMAND / DISPLAY DATA SELECT PIN
WRITE ENABLE CLOCK INPUT PIN
READ ENABLE CLOCK INPUT PIN
8/16 BIT SELECT PIN
NC
NC
NC
NC
LED POWER SUPPLY (+)
LED POWER SUPPLY(-)
LED POWER SUPPLY(-)
LED POWER SUPPLY(-)
LED POWER SUPPLY(-)
NC
DATA BUS
DATA BUS
DATA BUS
DATA BUS
DATA BUS
DATA BUS
DATA BUS
DATA BUS
DATA BUS
RESET PIN
POWER SUPPLY
POWER SUPPLY
GROUND
DATA BUS
DATA BUS
DATA BUS
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ILLUMINANT
6.Block Diagram:
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ILLUMINANT
7.Timing Control:
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ILLUMINANT
8.Backlight:
8.1 Standard Lamp Styles (Edge Lighting Type):
The LED chips are distributed over the edge light area of the illumination unit, which gives the less
power consumption:
8.2 The Main Advantages of the LED Backlight are as Following:
The brightness of the backlight can simply be adjusted.
By a resistor or a potentiometer.
8.3 Data About LED Backlight:
Item
Forward Voltage
Forward Current
Uniformity
Luminous Color
Chip Connection
Symbol
Vf
If
-
-
-
Conditions Min. Typ. Max.
If =72
- 3.2 3.5
- 72
If=72
80%
-
-
White
4-LED parallel connection
Unit
V
mA
-
NOTE:
1.Backlight Only
2.Average Luminous Intensity of P1-P9
3.Uniformity = Min(P1~P9)/Max(P1~P9) * 100%>80%
8.4 Measured Method:
P1 P2
P3
P4 P5
P6
P7 P8
P9
(Effective spatial Distribution)
Hole Diameter±1ø ; 1 to 9per Position Measured Luminous
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