Document Number: 37025

For technical questions, contact: displays@vishay.com

www.vishay.com

Revision: 05-Dec-00

3

TIP

Infrared Touch Panel with Controller

Vishay Dale

GENERAL DESCRIPTION

Each Vishay Dale touch panel has infrared LED emitters and

detectors along the X- and Y-axis, forming a grid of infrared

light beams across the face of the display. The first two

numbers of the TIP “matrix” number specify the number of

vertical beams and the last two numbers specify the number

of horizontal beams. The controller scans the emitter/

detector pairs one at a time and determines whether both X

and Y beams are blocked, indicating that a finger or stylus is

present. (When beams are blocked on only one axis, they are

ignored and not reported to the host.) The controller

determines the coordinates of the touch point and reports

them to the host computer. By interpolating a “virtual” beam

between two physical beams, the number of touch points on

each axis is effectively doubled. When an odd number of

beams along either axis is blocked, the coordinate of the

center physical beam is reported. When an even number of

beams is blocked, the coordinate of the virtual beam in the

center of the blocked beams is calculated and reported. The

touch controller supports enter, exit, continuous and tracking

report modes or combinations of these modes. The

controller also has a beeper output. Hardware handshaking,

software handshaking, baud rates and auto-baud features

are jumper selected. The user initializes the desired report

modes and requests reports when needed.

Several optical filters are standard to provide the most cost

effective filter for each application. “Non-standard” filters

may be specified as well. The filter increases the contrast

ratio of the display and protects the display face and

electronics.

Vishay Dale can assist in recommending the optimum filter

based on years of experience as a display manufacturer. The

perimeter of the filter is bonded to the bezel and a bezel to

front panel gasket is includedto provide a splash proof seal.

MATING CONNECTORS

VISHAY

OTHER

J1

280105-02

AMP 746285-1

J5, J6 280105-07 MOLEX 22-01-3037 housing, 08-50-0114 terminals

J4

280108-06 MOLEX 22-01-3037 housing, 08-50-0114 terminals

PIN CONNECTIONS

J1 DATA CONNECTOR

PIN

SIGNAL

PIN

SIGNAL

1

RD (to touch panel)

2

Ground

3

+ 12 (optional)

4

+ 12 (optional)

5

CTS

6

Reserved

7

RTS

8

Reserved

9

Ground

10

TD (from touch panle)

J5, J6 POWER CONNECTOR

PIN

SIGNAL

1+ 12 VDC

2

Beeper signal (active low)

J4 AUDIO FEED BACK CONNECTOR

PIN

SIGNAL

1Ground

2

Beeper signal (active low)

3+ 5 VDC

COMMAND SET (a bridged)

11H

DC1, Ctl Q, XON software handshaking

13H

DC3, Ctl S, XOFF, Software handshaking

20H

Enable exit point mode

21H

Disable exit point mode (default)

22H

Enable enter point mode

23H

Disable enter point mode (default)

24H

Enable continuous mode/disable tracking

25H

Disable continuous mode (default) and tracking

26H

Enable touch panel

27H

Disable touch panel (default)

28H

Request Failed beam report

29H

Enable automatic report transfer

2AH

Disable automatic report transfer (default)

2BH

Request one coordinate report

2CH

Reset touch panel

2EH

Disable beeper (default)

2FxxH

Sound beep, xx = duration (00H to FFH)

34H

Enable tracking mode/disable continuous

TOUCH FRAME DIMENSIONS in inches [millimeters]

MODEL

B

C

D

VIEWING AREA

3216

9.608 [244.04]

4.86 [123.44]

5.67 [144.02]

7.9 x 4.1 [200.66 x 104.14]

3220

9.748 [247.60]

6.238 [158.45]

6.950 [176.53]

8.0 x 5.2 [203.20 x 132.08]

3224

9.680 [246.0]

6.687 [169.85]

7.086 [179.98]

7.8 x 5.9 [198.12 x 149.86]

3526

10.404 [264.26]

7.311 [185.70]

7.532 [191.31]

8.6 x 6.4 [218.44 x 162.56]

B

A

D

C

VIEWING AREA