IP Library Granted Patent US 10,558,314
Granted Patent B2
US 10,558,314 · App. 14/876,382 · Granted Feb 11, 2020

Redundant resistive touch panel

Inventor: Ken Mahdi (Alpharetta, GA)
Assignee: American Panel Corporation
G06F3/045G06F3/0418G06F2203/04107
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Quick Facts
Patent No.
US 10,558,314
App. No.
14/876,382
Granted
Feb 11, 2020
Kind
B2
Abstract

A resistive touch panel is placed above an electronic display and the assembly is housed in a sealed gasket. The resistive touch panel has at least two adjoining, seamless grid sections, each in communication with an input/output device. The resistive touch panel comprised of electronic circuits configured to minimize electromagnetic interference. The grid sections are surrounded by a series of receivers. The electronic display comprised of multiple layers configured to provide visibility in bright ambient conditions.

Claims (46)

1. A touch panel assembly having redundancy measures comprising:

a unitary housing comprising a sealed gasket;

an undivided electronic display located within said unitary housing and adapted to display an image;

a resistive touch panel located within said unitary housing and comprising a pair of adjoining, independently operable, seamless grid sections and a series of touch input receivers;

a first and second input/output device in communication with said electronic display and each of said seamless grid sections; and

a channel comprising shielding and extending from within the unitary housing to an area outside of the unitary housing, wherein said first and second input/output devices extend through said channel;

wherein said sealed gasket secures said resistive touch panel above and in parallel with said electronic display in a sealed environment;

wherein said series of receivers are placed around the edge of said pair of grid sections to receive signals generated therefrom;

wherein the electronic display is a liquid crystal display;

wherein each of said seamless grid sections are comprised of a series of electronic circuits;

wherein each of the electronic circuits comprises a zener diode in parallel with a number of capacitors where each capacitor is in series with an inductor, followed by and in parallel with another zener diode.

2. The assembly of claim 1 wherein:

two of the series of receivers are located adjacent to the upper edge of the grid, each above each one of said grid sections;

two of the series of receivers are located on the lower edge of the grid, each below one of said grid sections; and

the remaining two of the series of receivers are located on each respective side of the resistive touch panel.

3. The assembly of claim 2 wherein:

each of said grid sections is in communications with the corresponding upper, lower, and side receiver.

4. The assembly of claim 3 further comprising:

software associated with the electronic display adapted to shift the image upon the failure of one of said grid sections, such that the image is displayed on only a portion of the electronic display located above the operable grid section.

5. The assembly of claim 4 wherein:

the input/output device utilized changes automatically if one of said input/output devices is rendered inoperable.

6. The assembly of claim 1 wherein:

the electronic display is comprised of a cover glass located above a linear polarizer located above a quarter wave retarder located above a top glass located above an optically clear adhesive located above a bottom glass located above an indium tin oxide layer located above a quarter wave retarder.

7. A system for providing a redundant touch panel assembly comprising:

a unitary liquid crystal display (LCD) for displaying an image;

a resistive touch panel comprising a pair of seamlessly adjoined grid sections and a series of touch input receivers;

a first and second input/output device in communication with said LCD and each of said seamlessly adjoined grid sections;

a gasket configured to provide a sealed environment between the LCD and the touch panel;

a unitary housing for said unitary LCD, said gasket, and said restive touch panel; and

a channel comprising shielding and extending from within the unitary housing, wherein said first and second input/output devices extend through said channel;

wherein said resistive touch panel is located above and extends in parallel with said liquid crystal display; and

wherein said series of touch input receivers are placed around the edges of said pair of grid sections to receive electronic signals generated therefrom;

wherein each of said grid sections are independently operable such that, upon the failure of one of said grid sections, the other grid section remains operable;

wherein upon failure of one of said input/output devices, the remaining operable input/output device is automatically utilized;

wherein each of the seamlessly adjoined grid sections is comprised of a series of electronic circuits; and

wherein each of the electronic circuits comprises a zener diode in parallel with a number of capacitors where each capacitor is in series with an inductor, followed by and in parallel with another zener diode.

8. The system of claim 7 wherein:

two of the series of receivers are located adjacent to the upper edge of the resistive touch panel above each of said grid sections;

two of the series of receivers are located on the lower edge of the resistive touch panel below each of said grid sections; and

two of the series of receivers are located on each respective side of the resistive touch panel.

9. The system of claim 8 wherein:

each of said grid sections is in communications with one of each of the corresponding upper, lower, and side receivers.

10. The system of claim 9 further comprising:

software associated with the liquid crystal display adapted to shift the image such that the image is displayed on only a portion of the liquid crystal display.

11. The system of claim 7 wherein:

the liquid crystal display is comprised of a cover glass located above a linear polarizer located above a quarter wave retarder located above a top glass located above an optically clear adhesive located above a bottom glass located above an indium tin oxide layer located above a quarter wave retarder.

Assignments (4)
NOTICE OF SUCCESSOR AGENT AND ASSIGNMENT OF SECURITY INTEREST IN REEL/FRAME 051010/0381 Recorded Nov 7, 2025
From: BANK OF AMERICA, N.A., AS PREDECESSOR AGENT
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR AGENT
Reel/Frame 073506/0518 →
MERGER Recorded May 3, 2022
From: AMERICAN PANEL CORPORATION
To: MERCURY MISSION SYSTEMS, LLC
Reel/Frame 059798/0226 →
SECURITY AGREEMENT Recorded Nov 14, 2019
From: AMERICAN PANEL CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 051010/0381 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2016
From: MAHDI, KEN
To: AMERICAN PANEL CORPORATION
Reel/Frame 039497/0134 →