3.3cm (1.3-inch) Black-and-White LCD Panel
Description
The LCX023CMT is a 3.3cm diagonal active matrix
TFT-LCD panel addressed by polycrystalline silicon
super thin film transistors with a built-in peripheral
driving circuit. Use of three LCX023ALB panels
provides a full-color representation. The striped
arrangement suitable for data projectors is capable
of displaying fine text and vertical lines.
The adoption of DMS (Dual Metal Shield) structure
realizes a high luminance screen. And new cross talk
free and ghost free structures contribute to high
picture quality.
This panel has a polysilicon TFT high-speed scanner
and built-in function to display images up/down and/or
right/left inverse. The built-in 5V interface circuit leads
to lower voltage of timing and control signals.
The panel contains an active area variable circuit
which supports S-XGA 5:4 and PC-98 8:5 data signals
by changing the active area according to the type of
input signal. Also incorporating microlens can increase
efficiency of incident light.
Features
Number of active dots: 786,432 (1.3-inch, 3.3cm in diagonal)
XGA display
SXGA viewable
High optical transmittance: 30% (typ.)
New high light resistance DMS (Dual Metal Shield) structure adopted
Built-in-new cross talk free circuit and ghost free circuit
High contrast ratio with normally white mode: 250 (typ.)
Built-in H and V drivers (built-in input level conversion circuit, 5V driving possible)
Up/down and/or right/left inverse display function
Antidust glass package
Element Structure
Dots: 1024 (H)
768 (V) = 786,432
Built-in peripheral driver using polycrystalline silicon super thin film transistors
Applications
Liquid crystal data projectors
Liquid crystal multimedia projectors
Liquid crystal rear-projector TVs, etc.
1
E98831A93-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
LCX023CMT
The company's name and product's name in this data sheet is a trademark or a registered trademark of each company.
For the availability of this product, please contact the sales office.
2
LCX023CMT
18
H Shift Register (Bidirectional Scanning)
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1
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25
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26
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15
30
27
Side-Black Control Circuit
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Input Signal
Level Shifter
Circuit
Block Diagram
3
LCX023CMT
Absolute Maximum Ratings (V
SS
= 0V)
H driver supply voltage
HV
DD
1.0 to +20
V
V driver supply voltage
VV
DD
1.0 to +20
V
Common pad voltage
COM
1.0 to +17
V
H shift register input pin voltage HST, HCK1, HCK2,
1.0 to +17
V
RGT
V shift register input pin voltage
VST, VCK, PCG,
1.0 to +17
V
BLK, ENB, DWN
HB, VB
Video signal input pin voltage
SIG1 to 12, PSIG
1.0 to +15
V
Operating temperature
Topr
10 to +70
C
Storage temperature
Tstg
30 to +85
C
Panel temperature inside the antidust glass
Operating Conditions (V
SS
= 0V)
Supply voltage
HV
DD
13.5 0.5V
VV
DD
15.5 0.5V
Input pulse voltage (Vp-p of all input pins except video signal and uniformity improvement signal input pins)
Vin
5.0 0.5V
4
LCX023CMT
Pin Description
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
PSIG
V
SS
GR
VSIG1
VSIG2
VSIG3
VSIG4
VSIG5
VSIG6
VSIG7
VSIG8
VSIG9
VSIG10
VSIG11
VSIG12
HV
DD
RGT
HST
HCK2
HCK1
V
SS
V
SS
GL
BLK
ENB
VCK
VST
DWN
HB
VB
PCG
VV
DD
COM
TEST
Symbol
Description
Uniformity improvement signal
GND for right V gate
Video signal 1 to panel
Video signal 2 to panel
Video signal 3 to panel
Video signal 4 to panel
Video signal 5 to panel
Video signal 6 to panel
Video signal 7 to panel
Video signal 8 to panel
Video signal 9 to panel
Video signal 10 to panel
Video signal 11 to panel
Video signal 12 to panel
Power supply for H driver
Drive direction pulse for H shift register (H: normal, L: reverse)
Start pulse for H shift register drive
Clock pulse for H shift register drive 2
Clock pulse for H shift register drive 1
GND (H, V drivers)
GND for left V gate
Input for PC98 mode
Enable pulse for gate selection
Clock pulse for V shift register drive
Start pulse for V shift register drive
Drive direction pulse for V shift register (H: normal, L: reverse)
Display switch for S-XGA
Display switch for PC98 mode
Improvement pulse for uniformity
Power supply for V driver
Common voltage of panel
Test pin, leave this pin open
5
LCX023CMT
Input Equivalent Circuit
To prevent static charges, protective diodes are provided for each pin except the power supplies. In addition,
protective resistors are added to all pins except the video signal inputs. All pins are connected to V
SS
with a
high resistor of 1M
(typ.). The equivalent circuit of each input pin is shown below: (Resistance value: typ.)
(1) VSIG1 to VSIG12, PSIG
HV
DD
250
250
250
250
Input
1M
1M
Level conversion circuit
(2-phase input)
2.5k
2.5k
HV
DD
Input
1M
Level conversion circuit
(single-phase input)
250
250
HV
DD
Input
1M
Level conversion circuit
(single-phase input)
250
250
VV
DD
Input
1M
Level conversion circuit
(single-phase input)
2.5k
2.5k
VV
DD
Input
1M
Level conversion circuit
(single-phase input)
Input
LC
1M
VV
DD
Input
1M
(2) HCK1, HCK2
(3) RGT
(4) HST
(5) PCG, VCK
(6) VST, BLK, ENB, DWN, HB, VB
(7) COM
(8) HV
DD
, V
SS
GR, V
SS
GL, VV
DD
Input
HV
DD
Signal line
1M
are all Vss.
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