NL6448AC33-13.pdf

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N0113E10.PDF
DATA SHEET
TFT COLOR LCD MODULE
NL6448AC33-13
26 cm (10.4 type), 640
480 pixels, 262144 colors,
incorporated one lamp/edge-light type backlight
´
DESCRIPTION
NL6448AC33-13 is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) module comprising
amorphous silicon TFT attached to each signal electrode, a driving circuit, and a backlight.
The 26 cm diagonal display area contains 640 ´ 480 pixels and can display 262144 colors simultaneously.
By utilizing one lamp/edge-light type backlight, a very thin profile and low power consumption have been achieved.
FEATURES
• 6-bit digital RGB signals
• 3.3 V operation (5.0 V available)
• Thin and light weight
• Low reflection
• Low power consumption
• Incorporated edge light type backlight (One lamp, Inverter-less)
• Data enable function
APPLICATIONS
• Notebook personal computer (PC), word processor
• Display terminals for control system
• New media
• Monitors for process controller
Document No. EN0113EJ1V0DS00
Date Published November 1995 P
Printed in Japan
©
1995
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NL6448AC33-13
STRUCTURE AND FUNCTIONS
A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and the backlight. The
TFT LCD panel is composed of a TFT array glass substrate superimposed on a color filter glass substrate with
liquid crystal filled in the narrow gap between two substrates. The backlight apparatus is located on the backside
of the LCD panel.
RGB (Red, Green, Blue) data signals are sent to LCD panel drivers after modulation into suitable forms for
active matrix addressing through signal processor.
Each of the liquid crystal cells acts as an electro-optical switch that controls the light transmission from the
backlight by a signal applied to a signal electrode through the TFT switch.
BLOCK DIAGRAM
H-driver
R0–R5
G0–G5
B0–B5
Digital
signal
processor
Level
shift
1920 lines
TFT LCD panel
H : 640
´
3 (R, G, B)
V : 480
CLK
Hsnyc
Vsnyc
DE
LCD timing
controller
V CC
Power
supply
circuit
LSls
Drivers
Backlight
VHV
OUTLINE OF CHARACTERISTICS (at room temperature)
Display area 211.2 (H) ´ 158.4 (V) mm
Drive system a-Si TFT active matrix
Display colors 262144 colors
Number of pixels 640 ´ 480 pixels
Pixel arrangement RGB vertical stripe
Pixel pitch 0.33 (H) ´ 0.33 (V) mm
Module size 243.0 (H) ´ 179.0 (V) ´ 8.0 max. (D) mm
Weight 385 g (typ.)
Contrast ratio 150:1 (typ.)
Viewing angle (more than the contrast ratio of 10:1)
Horizontal : 45˚ (typ. left side, right side)
Vertical
: 20˚ (typ. up side), 40˚ (typ. down side)
Designed viewing direction
• Wider viewing angle with contrast ratio : down side (6 o’clock)
• Wider viewing angle without image reversal: up side (12 o’clock)
• Optimum grayscale ( g = 2.2)
: perpendicular
Color gamut
42 % (typ. center, to NTSC)
Response time
40 ms (max.), “white” to “black”
Luminance
70 cd/m 2 (typ.)
Signal system
6-bit digital signals for each of RGB primary colors, synchronous signals
(Hsync, Vsync), dot clock (CLK), DE signal
Supply voltages
3.3 V [5.0 V]
Backlight
Edge light type, one cold cathode fluorescent lamp
Power consumption
2.1 W (typ. at 3.3 V)
2
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NL6448AC33-13
GENERAL SPECIFICATIONS
Item
Specification
Unit
Module size
243.0 ± 0.5 (H) ´ 179.0 ± 0.5 (V) ´ 8.0 max. (D)
mm
Display area
211.2 (H)
´
158.4 (V)
mm
Number of pixels
640 (H)
´
480 (V)
pixel
Dot pitch
0.11 (H) ´ 0.33 (V)
mm
Pixel pitch
0.33 (H) ´ 0.33 (V)
mm
Pixel arrangement
RGB (Red, Green, Blue) vertical stripe
Display colors
262144
color
Weight
400 (max.)
g
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Rating
Unit
Remarks
Supply voltage
V CC
–0.3 to 6.5
V
T a = 25 ˚C
Input voltage
V I
–0.3 to 6.5
V
V I < V CC + 3.0
Storage temp.
T ST
–20 to 60
˚C
Operating temp.
T OP
0 to 50
˚C
Module surface *
Humidity
£ 95 % relative humidity
T a = 40 ˚C
No condensation
£
85 % relative humidity
T a = 50 ˚C
Absolute humidity shall not
T a > 50 ˚C
exceed T a = 50 ˚C,
85 % relative humidity level
* Measured at the display area
ELECTRICAL CHARACTERISTICS
(1) Logic, LCD driving
T a = 25 ˚C
Parameter
Symbol
Min.
Typ.
Max.
Unit
Remarks
Supply voltage
V CC
3.0
3.3
3.6
V
V CC = 3.3 V
(4.75)
(5.0)
(5.25)
(V CC = 5.0 V)
Logic input “L” voltage
V IL
0
–
V CC
´
0.3
V
Logic input “H” voltage
V IH
V CC ´ 0.7
–
V CC
V
Supply current
I CC
–
* 1 270
* 2 400
mA
V CC = 3.3 V
–
* 1 (190)
* 2 (350)
mA
V CC = 5.0 V
*1. Checker flag pattern (in EIAJ ED-2522)
*2. Theoretical maximum current pattern
3
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NL6448AC33-13
(2) Backlight
T a = 25 ˚C
Parameter
Symbol
Min.
Typ.
Max.
Unit
Remarks
Lamp current
I L
2.0
2.5
5.0
mArms
70 cd/m 2 : 2.5 mArms (Typ.)
90 cd/m 2 : 3.1 mArms (Typ.)
Lamp voltage
V L
–
480
–
Vrms
Lamp turn on voltage
V S
650
1200
–
Vrms
T a = 0 ˚C
450
600
–
Vrms
T a = 25 ˚C
Oscillator frequency
Ft
50
54
58
kHz
Note
Note Recommended value of “Ft”
• Ft is within the specification.
and
Th: Hsync period
4Th n : a natural number (1, 2, 3, ····)
If Ft is out of the recommended value, interference between Ft frequency and Hsync frequency may cause
beat on the display.
• Ft =
1
´
(2n-1)
SUPPLY VOLTAGE SEQUENCE
3.0 (4.75 V)
0s<t<35 ms 0s<t<35 ms
3.0 (4.75 V)
*1 The supply voltage for input signals should
be same as V CC .
*2 Apply VHV within the LCD operation period.
When the backlight turns on before LCD
operation or the LCD operation turns off
before the backlight turns off, the display
may momentarily become white.
*3 When the power is off, please keep whole
signals (Hsync, Vsync, CLK, data) low
level or high impedance.
V CC
Signals
2Tv
0<
Backlight
4
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NL6448AC33-13
INTERFACE PIN CONNECTION
(1) Interface signals, power supply
Module side connector
Mating connector
CN1 ··· DF9-41P-1V (No. 1 to 41)
DF9 ´ -41S-1V ( ´ ··· A to C)
Supplier: HIROSE ELECTRIC CO., LTD.
Pin No.
Symbol
Function
Pin No.
Symbol
Function
1
GND
Ground
22
GND
Ground
2
CLK
Dot clock
23
G3
Green data
3
GND
Ground
24
G4
Green data
4
Hsync
Horizontal sync.
25
G5
Green data (MSB)
5
Vsync
Vertical sync.
26
GND
Ground
6
GND
Ground
27
GND
Ground
7
GND
Ground
28
GND
Ground
8
GND
Ground
29
B0
Blue data (LSB)
9
R0
Red data (LSB)
30
B1
Blue data
10
R1
Red data
31
B2
Blue data
11
R2
Red data
32
GND
Ground
12
GND
Ground
33
B3
Blue data
13
R3
Red data
34
B4
Blue data
14
R4
Red data
35
B5
Blue data (MSB)
15
R5
Red data (MSB)
36
GND
Ground
16
GND
Ground
37
DE
Data enable
17
GND
Ground
38
V CC
Power supply
Note 1
18
GND
Ground
39
V CC
Power supply
Note 1
19
G0
Green data (LSB)
40
V CC
Power supply
Note 1
20
G1
Green data
41
MODE
Timing mode select
Note 2
21
G2
Green data
LSB : Least Significant Bit
MSB : Most Significant Bit
Notes 1. V CC : All V CC terminals should be connected to +3.3 V or +5.0 V.
2. MODE: H = Fixed mode
L or open = DE mode
(2) Backlight
Lamp side connector Mating connector
CN2 ··· BHR-03VS-1 SM02 (8.0) B-BHS-TB
Supplier: J.S.T TRADING COMPANY, LTD.
<Connector location>
upper side
Pin No.
Symbol
Function
CN2
<Rear view>
1
VHV
High voltage terminal
2
N. C.
Non-connection
CN1
3
GND
Backlight ground
lower side
1
2
3
1
2 4
3
· ·
· ·
· ·
· ·
·
41
·
40
<pin arrangement of CN2>
<pin arrangement of CN1>
5
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