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Structure of protection sheet for touchpanel

IP.com Disclosure Number: IPCOM000014107D
Original Publication Date: 2000-Apr-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Abstract

Disclosed is a new structure of a protection sheet for a touch panel. The protection sheet consists of a PET film with non-glared hard coat and spacers printed by screen printing.(Figure 1) This structure prevents from wrong responses caused by dust,and allows users to choose thick of protection sheets. The conventional technology prevents from this problem by using a thin film,but it is vulnerable to damage.(Figure 2) Since this strucure compulsorily makes an air layer between the touch panel and the protection sheet(Figure 3),the protection sheet does not stick on the touch panel. Even if there is dust between them ,the touch panel responds correctly despite of the thickness of the protection sheet. N ew structure protection sheet

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Structure of protection sheet for touchpanel

   Disclosed is a new structure of a protection sheet for a touch panel. The
protection sheet consists of a PET film with non-glared hard coat and spacers
printed by screen printing.(Figure 1) This structure prevents from wrong
responses caused by dust,and allows users to choose thick of protection sheets.

The conventional technology prevents from this
problem by using a thin film,but it is vulnerable
to damage.(Figure 2)

Since this strucure compulsorily makes an air layer
between the touch panel and the protection
sheet(Figure 3),the protection sheet does not stick
on the touch panel. Even if there is dust between
them ,the touch panel responds correctly despite
of the thickness of the protection sheet.

N ew structure protection sheet

Figure 1

Non-glare hard coat

Pet film

Spacer

Thick protection sheet

N ew structure protection sheet

Push by dust B ended touchpanel sheet side

B ended protection sheet side

Thin protection sheet

Figure 2

C onventional protection sheet

P ush by dust

Stick

Spacer No stick

Air layer

Protection sheet

Touch panel

N ot push by dust

Figure 3

1

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