4-wire resistive touchscreen specs

8/7/2019 4-Wire Resistive Touchscreen Specs

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4-Wire Resistive Touch Sc reen Spec ifica tions

TVI Elec tronics LLC. May 2010

4 Wire Resistive Touc h Sc reen

Spec ific ations

Rev. A


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Rev. A 1 May 2010

CONTENTS

1. WARRANTY ........................................................................................................................................ 2

1.1WARRANTY PERIOD .............................................................. ........................................................... 2

1.2WARRANTY EXCEPTIONS....................................................... ........................................................... 2

2. FEATURES............................................................................................................................................ 2

3. GENERAL SPECIFICATIONS............................................................ ................................................ 2

4. ENVIRONMENTAL SPECIFICATIONS........................................................ ..................................... 3

5. ELECTRICAL CHARACTERISTICS............................................................... ..................................... 3

6. MECHANICAL CHARACTERISTICS........................................................... ..................................... 3

7. DURABILITY TEST................................................................................................................................ 3

7.1DURABILITY AGAINSTWRITING CHARAC TERS........................................................ ........................... 3

7.2PUNCHING LIFE ............................................................................................................................... 3

7.3IMPACTRESISTANC E............................................................. ........................................................... 3

7.4ITO CONNECTOR INSERT/PULL OUTRESISTANC E............................................................ ................ 3

8. RELIABILITY TEST................................................................................................................................ 4

8.1EXPOSURE TO HIG H TEMPERATURE............................................................... ..................................... 4

8.2EXPOSURE TO LOW TEMPERATURE............................................................... ..................................... 4

8.3EXPOSURE TO CONSTANT TEMPERATURE AND HUMIDITY............................................................... ..... 4

9. VISUAL INSPECTION............................................................... .......................................................... 4

9.1SCRATCH ........................................................................................................................................ 5

9.2GRANULARFOREIGN OBJECT......................................................... ................................................ 5

9.3LINEARFOREIGN OBJECT...................................................... .......................................................... 5

9.4GLASSFRAGMENT........................................................................................................................... 6

10. TEST.................................................................................................................................................... 6

10.1LINEARITY ...................................................................................................................................... 6

10.2OPEN AND SHORTC IRCUITTEST ............................................................... ..................................... 6

10.3INSULATION RESISTANC E...................................................... .......................................................... 6

10.4FINISHED PRODUCTFUNCTIONAL TEST...................................................... ..................................... 6

11. HANDLING REMARKS......................................................... ........................................................... 7

11.1STORAGE...................................................................................................................................... 7

11.2UNPACKING.................................................................................................................................. 7

11.3HANDLING .................................................................................................................................... 7

11.4MOUNTING ................................................................................................................................... 7

11.5RECOMMENDED HARDWARE & SOFTWARE........................................................ ........................... 9


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Rev. A 2 May 2010

1. Warranty

1.1 Warranty Period

1.1.1 Shall be c apable o f me eting a ll cha rac teristic s for a m inimum period of 1

(one) year from the date of purchase when stored or used as specified under

norma l co nd itions within contents of these shee ts. The warranty fo r the initia lde fection such as ap pe arance de fection is limited to 1 month.

1.2 Warranty Exceptions

Follow ing c ond itions are not c ove red by the wa rranty and a re subjec t to c hang e.

1.2.1 Any ma lfunc tions and dama ges during transportat ion and transfer by user.

12.2 Any ma lfunctions and dama ge s c aused by sta tic elec tricity.

1.2.3 Any ma lfunc tions and dama ges ca used by a na tural d isaster or a fire.

1.2.4 Any malfunctions and damages caused by the failure of the associated

equipment.

1.2.5 Any malfunctions and damages caused by an improper installation, usage

and hand ling a ga inst the spe c ific a tions and note s.1.2.6 If the product is remodeled, disassembled or repaired by the user or

una utho rized personnel.

1.2.7 If the p rod uc t is glued onto the e quipme nt a nd then uninsta lled .

1.2.8. Custom p rod uc ts a re NOT elig ible fo r Warranty Rep lac em ent .

2. Features

Type: 4 Wire Ana log Resistive typ e Touc h Pane l

Inp ut Mo de: Pen o r Finger

Struc ture: PET Clear ha rd antig lare c oa ting and anti New ton ring ITO Film, 188um

Glass...ITO G lass, 1.8mm , 1.1mm

Spacer.0.1mm

Dot Pitch.3.0mm x 3.0mm

Connector: FPC

3. Gene ral Spe c ifications

Item Spec ifica tion Unit

ITO Glass 1.1 0.1 mm

PET (ITO Film) 175 um

Co nne c to r FPC, 4Pin


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Rev. A 3 May 2010

4. Environm enta l Spe c ifications

4.1 The Ma ximum Voltag e: 5V (DC), 1mA

4.2 Operat ing Tem perature Range: from - 20 to + 70

4.3 Sto ring Tem pera ture Rang e: from - 30 to + 80

5. Elec trica l Charac teristics

5.1 Termina l Resista nc e:

Top Elec trod e: Less than 1k Botto m Elec trod e: Less tha n 1k

5.2 Line a rity: 1.5 % or less

5.3 Insula tion Resista nc e: 10M or more @ 25V (DC)

5.4 Cha tte ring Time : 30msec or less

6. Mec hanica l Charac teristic s

6.1 Inp ut M ethod: Pen or Finger6.2 Op era ting Force: 40grams or less with 2mm M anusc ript Pen

6.3 Top Surfac e Hardne ss: 3H (Penc il Test) & Hard Co a ted ITO PET

6.4 Light Transmission: 80 3% a t 550nm wave leng th

7. Durability Test

7.1 Durab ility aga inst Writing Cha rac ters

Touch panel is d rawn b y R0.8 polyac eta l test hea der, a t the rate of 250g, spee d

60mm per second, repeat one inch by 500K times in the same length (10-100mm).

The m ea surement must sa tisfy the fo llowing:

- Resista nc e betw ee n Lea ds:

200 < X Axis < 900 300 < Y Axis < 1000

- Line a rity: 1.5 % or less

- Insula tion: 10M or more @ 25V (DC)

7.2 Punc hing Life

Touc h p ane l is hit 10 millions time s with a n 2mm Ma nusc ript Pen; hitting ra te is by

250g a t 2 time s per sec ond . The me asurem ent must sa tisfy the follow ing:

- Resista nc e betwe en Lea ds:

200 < X Axis < 900 300 < Y Axis < 1000



7.3 Impac t Resista nc e

Stee l ba ll is d rop ped on the touc h panel surfac e from 30 c m he ight a t 1 time . No

dama ge when 9mm.

7.4 ITO C onnec to r Insert / Pull out Resista nc e

5 Time s a t least. The Requirements in 4.1 sha ll be sa tisfied .

7.5 Pa ckag e Drop : No da ma ge to the produc t


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Rev. A 4 May 2010

8. Reliability Test

8.1 Exposure to high tem perature

Touc h panel is put into a test mac hine a t the c ond ition o f 60 fo r 120 ho urs. The n

it is left a t the roo m tem perature for 24 hours or mo re. The me asurem ent must

sa tisfy the fo llow ing:- Resista nc e betwe en Lea ds:

200 < X Axis < 900 300 < Y Axis < 1000



- Op era ting Forc e: 40grams or less w ith 2mm M anusc ript Pen.

8.2 Exposure to low tem perature

Touc h p anel is put into a test ma c hine a t the c ond ition o f - 20 for 120 hours.

Then it is left a t the roo m temp erature for 24 hours or more. The mea surem ent mustsa tisfy the fo llow ing:


200 < X Axis < 900 300 < Y Axis < 1000




8.3 Exposure to c onsta nt tem perature a nd humidity

Touc h panel is put into a test ma chine a t the c ond ition o f 60, 90%RH for 120 hours.

Then it is left a t the room tempera ture fo r 24 hours or more. The m ea surement must

sa tisfy the fo llow ing:


200 < X Axis < 900 300 < Y Axis < 1000




9. Visua l Inspec tion

The follow ing a re ap p lied to the viewing a rea only. They a re igno red in the non-view ing

area s as long as the elec tric a l pe rformanc e o f TP is Func tiona l. W = Width, L = Length, D =

Diame ter, GT = Glass Thickness. Contamina tion tha t c an b e c lea ned using a soft c loth w ith

ethyl a lc ohol do es not app ly to these c riteria. If the ob jec t is 3 time s longer in one d irec tion

than in a perpendicular direction, then it is considered a linear foreign object. Extra

d ielec tric dots a re trea ted as a granular foreign o b jec t; extra silver or ca rbon is reg a rded

as a defec t.


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Rev. A 5 May 2010

9.1 Sc ratch

CRITERIA DECISION

W20mm in

d ista nce from any othe r sc ra tc h o r foreign o b jec t, it is

ignored.

In case of L 20mm where the scratch is >20mm in

distance from any other scratch or foreign object, the

TP is defec tive .

In c ase o f L >20mm the TP is reg a rded as a defe c t.

W>0.06mm The TP is rega rded as a defe c t.

9.2 Granular Foreign O b jec t

CRITERIA DECISION

D20mm in d ista nc e from

any othe r sc ra tc h or foreign ob jec t, it is ignored .

In case where the object is < 20mm in distance from

any other sc ra tc h or foreign ob jec t, the TP is reg a rded

as a de fect.

D>0.5mm TP is Defec tive .

9.3 Linea r Foreign Ob jec t

CRITERIA DECISION

W20mm in

d ista nce from any othe r sc ra tc h o r foreign o b jec t, it is

ignored.

In case of L 4mm where the object is 4mm the TP is reg a rded as a defe c t.

W>0.09mm The TP is rega rded as a defe c t.


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Rev. A 6 May 2010

9.4 Glass Frag ment

10. Test

10.1 Linearity: Direction 1.5% or less

10.2 Op en and short C irc uit Test

10.3 Insula tion Resista nc e: 10M or more @ 25V (DC)

10.4 Finished Prod uc t Func tiona l Test


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Rev. A 7 May 2010

11. Hand ling Rem arks

This p rod uc t is intend ed for use in sta nd ard a pp lic a tions (com p uters, office automa tion,

and other office equipment, industrial, communications, and measurement equipment,

personal and household devices, etc.) Please avoid using this product for special

applications where failure or abnormal operation may directly affect human lives, orcause p hysica l injury or property da ma ge, o r where extrem ely high levels of reliab ility a re

req uired (suc h as aerospac e systems, vehic le operating c ontrol, a tomic e nergy c ont rols,

me d ic a l devic es for life suppo rt, etc .)

11.1 Sto rag e

11.1.1 When the product is stored, make sure it is stored in storage temperature and

humidity ranges, eliminating any outside load.

11.1.2 When the p rod uc t is sto red , ma ke sure it is pac ked in a p rop er pa c king box.

11.1.3 Do no t use o r store the p rod uc t under a c ond ition w here the p rod uc t w ill be

exposed to w a ter, orga nic solution o r ac id .11.1.4 Do no t expo se the p rod uc t to the d irec t sunligh t.

11.2 Unp ac king

11.2.1 When you hand le the p rod uc t, hold the p rod uc t by its bod y. Do not ho ld b y the

FPC ta il.

11.2.2 Befo re o pe ning the b ox, c hec k the UP / DOWN ind ica tor.

11.3 Handling

11.3.1 When ho lding the p rod uc t, hold the p rod uc t outside o f the view ing a rea in order

to avoid da ma ge to the touch pa nel.

11.3.2 Plea se pay the best a ttention no t to c rea te any stress to the hea t-sea led FPC ta il.

Hea vy stress ma y c ause d isc onnec tion.

11.3.3 The ed ge of the g lass is not round ed and ma y cause injury.

11.3.4 Do not depress or scratch the product with any object with a sharp edge to

avoid sc ra tc h to the p rod uc t s surfac e.

11.3.5 Do no t forcibly bend or fold the p rod uc t.

11.3.6 Do not p ut hea vy objec ts on the p rod uc t.

11.3.7 Clean the product with a soft cloth or a soft cloth with neutral detergent or

alco hol. When c ontam inated by c hemica ls, wipe them o ff imm ed iate ly with c autionnot to c ause injury to human bo dy.

11.4 Mo unting

11.4.1 After protective film is released and then laminated to the products surface

aga in, p lea se m ake sure the re is no d irt on the prod uc t s surfac e.

11.4.2 While d esigning the mounting bezel, try to minimize the stress of the b ezel edge

on the to uch p ane l. Bezel edg e m ust b e p ositioned in the a rea be twee n the Ac tive

Area and the View ing Area . The b ezel ma y press the touc h sc reen a nd c ause input if

the ed ge enters the Ac tive Area .


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Rev. A 8 May 2010

11.4.3 A ga p o f ap p roxima tely 0.5mm is needed betw ee n the bezel and the top

elec trod e on the to uch sc ree n. It ma y ca use unexpec ted input if the ga p is too

narrow.

11.4.4 If a c ushion is used betw ee n the b ezel and the top elec trode, the c ushion must

be free enoug h to a bsorb the expansion a nd c ontrac tion d ifferenc e b etwe en the

bezel and the top elec trod e. If the c ushion is squashed too ha rd , the expa nsion a nd

the c ontrac tion d ifferenc e ma y c ause the distortion to the top electrod e.

The c ushion m ust b e positione d within the insulation a rea .

11.4.5 There is a toleranc e of 0.2 to 0.3mm for the d imensions of t he touc h sc ree n a nd

the tail. A ga p m ust be ma de to a bsorb the to leranc e in the c ase a nd the c onnec tor.

11.4.6 The FPC ta il must no t b e forcib ly stressed or bent too ha rd to avo id the

c ond uc tion in the insula ted area a nd w ire b rea king.


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Rev. A 9 May 2010

11.4.7 Touc h sc ree n must b e he ld from the bot tom suc h a s the structure g luing the

touc h sc ree n onto the d isp lay. If the touc h sc reen is glued to the b ezel, the adhesion

be twee n the top and bo ttom electrod es is stressed and ma y co me off.

11.4.8 The area within 2mm from the insulat ion a rea is struc tura lly wee k for the pressure,

espec ially for pen use. The film m ay be forcib ly bent a nd ma y ca use d efe c tion. This

forbidd en a rea must be protecte d b y the bezel and input must be avoided .

11.4.9 Mo st of the touc h sc ree ns ha ve the a ir vent to eq ua lize a ir p ressures inside and

outside . Please d esign your mo unting b ezel so tha t the a ir vent is op en to avoid

ab sorption of the liquid a cc umulate d nea r the a ir vent.

11.5 Rec om me nded Hardwa re & Softw are

The b est performanc e c an be ob tained whe n used with the original 4 wire a nalog

resistive touc hsc ree n c ontroller, SLT-TP05 Series and the ac c om panied Touc hKit

Softwa re.


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Rev. A 10 May 2010

SLT-TP05-USB Touc hSc reen Co ntrolle r

SLT-TP05-RS232 Touc hSc reen Co ntrolle r

Touc hKit Software

If the to uc hsc ree n controller or controller softw are is to b e d eve lop ed by the user,

p lea se note the follow ing:- There is a c onta c t resistanc e b etwe en the top and bo ttom electrod es and it c hang es

by the p ressure o f a finger or a pen. The d a ta must be read a fter the c onta c t

resista nc e bec om es sta b ilized .

- The te rmina l resista nc e of the ana log resistive to uc h sc ree n va ries by the individua l,

time , and environm ent. The c ontroller software must ha ve the c a libration func tion to

ad just the inp ut p osition a nd the d isp lay position.

- The a na log resistive touc h sc ree n outp uts 2 po int inp ut a s 1 po int in b etw ee n the 2

points. The c ontroller software must no t b e designed to have the 2 po int input function.

- For drawing a pp lic at ions, the line m ay be intermittent w hen the pen c om es on the

dot spac ers. Softw are c om pensa tion is needed .


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Rev. A 11 May 2010

This do c ument c an be freely distributed , but a ny alternation to this do c ument is prohibited.

4-wire resistive touchscreen specs

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