TOUCH-INPUT-FUNCTION ADDED PROTECTIVE FILM FOR ELECTRONIC INSTRUMENT DISPLAY WINDOW

• US 20110175841A1
• Filed: 07/23/2009
• Published: 07/21/2011
• Est. Priority Date: 07/23/2009
• Status: Abandoned Application

• Current Assignee: Nissha Printing Company Limited (Nissha Co., Ltd.)
• Original Assignee: Nissha Printing Company Limited (Nissha Co., Ltd.)
• Inventors: Nakamura, Kazuto, Nishikawa, Kazuhiro, Kai, Yoshihiro
• Application Number:
  US13/120,773
• Publication Number:
  US 20110175841A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1637 Details related to the display arrangement, including those related to the mounting of the display in the housing
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: H05K 2201/10234 Metallic balls
• CPC Class Codes: H05K 2201/10295 Metallic connector elements partly mounted in a hole of the PCB
• CPC Class Codes: H05K 2201/2036 Permanent spacer or stand-off in a printed circuit or printed circuit assembly
• CPC Class Codes: H05K 3/321 by conductive adhesives
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits

Abstract

In a touch-input-function added protective panel for an electronic instrument display window having an FPC that takes out an electrical signal by way of a through hole made in a lower electrode panel, an adhesive layer that bonds a lower electrode panel and an upper electrode sheet to each other, has a connection hole connected to the through hole, plural dot spacers are fixed and arranged in the connection hole and between the lower electrode panel upper surface at the peripheral edge of the through hole and the upper electrode sheet, so as to be separated from one another, and further an electroconductive adhesive is filled from the through hole into the connection hole, the gap interval of which is maintained by the dot spacers.

Claims

1-10. -10. (canceled)

11. A touch-input-function added protective panel for an electronic instrument display window, comprising:

a lower electrode panel having, on an upper surface of a nonflexible protective panel body, a lower transparent electrode and a lower circuit located around the lower transparent electrode;

an upper electrode sheet arranged on an upper side of the lower electrode panel, having, on a lower surface of a flexible and transparent insulating film, an upper transparent electrode located at a position opposite to the lower transparent electrode and an upper circuit located around the upper transparent electrode, and further bonded, at its peripheral edge region, to the lower electrode panel through an adhesive layer so as to form an inter-electrode gap between the upper transparent electrode and the lower transparent electrode;

a decorative sheet arranged on an upper side of the upper electrode sheet, having, in at least one surface of a flexible and transparent insulating film, a decorative layer that hides the lower circuit and the upper circuit and forms a transparent window section, and further adhered onto an upper surface of the upper electrode sheet; and

an FPC that takes out an electrical signal through a pin inserted into a through hole made in the lower electrode panel,

wherein the adhesive layer has a connection hole connected to the through hole, plural spacers are fixed and arranged in the connection hole and between the upper surface, at the peripheral edge of the through hole, of the lower electrode panel and the upper electrode sheet, so as to be separated from one another, and an electroconductive adhesive is filled from the through hole into the connection hole, a gap interval of an inside of which is maintained by the spacers.

12. The touch-input-function added protective panel for an electronic instrument display window according to claim 11, wherein the spacers are dot spacers, and dots of the dot spacers are each fixed and bonded to at least one of the lower electrode panel and the upper electrode sheet.

13. The touch-input-function added protective panel for an electronic instrument display window according to claim 11, wherein the spacers are dot spacers, and dots of the dot spacers are each a particle fixed and bonded to at least one of the lower electrode panel and the upper electrode sheet.

14. The touch-input-function added protective panel for an electronic instrument display window according to claim 13, wherein the particle is fixed and bonded by fixing a supporting layer that fixes the particle, to at least one of the lower electrode panel and the upper electrode sheet.

15. The touch-input-function added protective panel for an electronic instrument display window according to claim 14, wherein the supporting layer is a layer having electroconductivity.

16. The touch-input-function added protective panel for an electronic instrument display window according to claim 11, wherein the spacers have electroconductivity.

17. The touch-input-function added protective panel for an electronic instrument display window according to claim 13, wherein the particle is spherical.

18. The touch-input-function added protective panel for an electronic instrument display window according to claim 11, wherein a height size of the spacers is larger than a gap interval size of the connection hole that is maintained, in the connection hole in the adhesive layer, by the spacers.

19. The touch-input-function added protective panel for an electronic instrument display window according to claim 11, wherein the spacers are arranged around a position of the upper surface of the lower electrode panel which corresponds to an inside of the through hole, so as to be in positions except the position, which corresponds to the inside of the through hole.

20. The touch-input-function added protective panel for an electronic instrument display window according to claim 14, wherein the supporting layer has a frame shape having, at a position of the upper surface of the lower electrode panel which corresponds to an inside of the through hole, a through hole, and the particles are fixed to regions of the supporting layer except the through hole in the supporting layer, whereby the particles are arranged around the position corresponding to the inside of the through hole.