LM3201921 데이터 시트보기 (PDF) - Sharp Electronics
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LM3201921 Datasheet PDF : 26 Pages
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SPEC Ho.
LC99204
HODEL Ho.
LM3201
921.
OHANCLING INSTRUCTION FOR TOUCH PANEL
Following
precaution
should be taken on use of Touch
analog detective
type and matrix detective type).
Screen (IT0
resistive
1. PRECAUTION ON DESIGNING TOUCH PANEL
(please see Touch Panel plane drawing 1.)
1) ACTIVE AREA
Active area is described as inputted area by pen or finger, which assures
quality clarified
on the specifications
related to input action such as
functional
property.
optical property and durabi I ity.
(1) For detection
of coordinates
and calibration.
it should be always
conducted within active area. If it is conducted outside of the
act i ve area. it may cause functional
error.
(2) Area which is actually
inputted by pen or finger should be designed
within active area. lf it is designed outside of the active area. it
may cause functional
error.
2) NEUTRAL AREA
Neutral area is located in outside of the active area by 0.2-1.011x11
(inside of non active area by 0.2 -~l.Onm~). coordinates
can be detected.
but its location
is in outside of the area which assures quality
clarified
on specifications
related to input action such as functional
property,
opt i ca I property and durab i I i ty.
(1) Neutral area detects coordinates
when inputted by pen or finger, but
it may cause functional
error when it is transacted
as data detected.
(2) Si rice a role of the neutral area is to protect non active area.
hard pushing by tip of a pen, etc. may cause deterioration
of its
durab i I i ty.
3) VIS I BLE AREA
Thi S is transparent
area without printed silver electrode
print circuit
printed with opaque ink, it assures quality
spec if i cat ions re la-tad to appearance standard.
or flexible
clarified
on
4) NON ACTIVE AREA
Upper electrode
or lower electrode
of the non active area is printed with
transparent
insulation
ink. it is located in outside of the active area.
Input by pen does not work in this area.
(1) Non active area is printed with insulation
ink. hard push may cause
transformation
of upper electrode
film, active area located near may
contact together.
may generate conductive power.
(2) Since a role of non active area is to hold flatness of the upper
electrode
film on its structure.
hard pushing by pen or on housing
may cause functional
error.
2. PRECAUTION ON DESIGNING PRINT CIRCUIT OR TOUCH PANEL
1) There is contact resistance
between upper and lower electrode
of the
Touch Pane I. Setting impedance of receiving circuit high enough on
-the desien
is recommended.
Lower irrpedance
may cause functional
error
PAGE
3
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