TESTING APPARATUS FOR TOUCH SCREEN

• US 20090241701A1
• Filed: 09/23/2008
• Published: 10/01/2009
• Est. Priority Date: 03/28/2008
• Status: Active Grant

• Current Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: PAN, CHIANG-FU
• Granted Patent: US 8,061,223 B2
• Time in Patent Office: Days
• US Class Current: 73/865.900
• CPC Class Codes: G01R 31/28 Testing of electronic circuits, e.g. by signal tracer EMC, EMP or similar testing of electronic circuits G01R31/002; testing for short-circuits, discontinuities, leakage or incorrect line connection G01R31/50; checking computers or computer components G06F11/00; checking static stores for correct operation G11C29/00 ; testing receivers or transmitters of transmission systems H04B17/00
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A testing apparatus (100) for testing a touch screen used in an electronic device is described. The testing apparatus includes a base (20), a testing device (13), a holding mechanism (10), and a control module (12). The testing device includes a testing platform (131) carrying the touch screen, a positioning board (133) and testing members (135) positioned on the positioning board. The holding mechanism is operatable to hold the touch screen on the testing platform during the testing members testing the touch screen. The control module can control the testing members to test the touch screen.

Claims

1. A testing apparatus for testing a touch screen used in an electronic device, comprising:

a base;

a testing device comprising;

a testing platform mounted on the base and configured for carrying the touch screen;

a positioning board mounted on the base; and

a plurality of testing members positioned on the positioning board;

a holding mechanism mounted on the base and be operatable to hold the touch screen on the testing platform during the testing members testing the touch screen; and

a control module mounted on the base and configured for controlling the testing members to test the touch screen.

2. The testing apparatus as claimed in claim 1, wherein the testing of the touch screen is pneumatically driven.

3. The testing apparatus as claimed in claim 2, wherein the control module comprises a controller and a plurality of electromagnetic valves corresponding to the plurality of the testing members, the controller electrically connecting with the electromagnetic valves and configured for controlling operation of the electromagnetic valves, the electromagnetic valves configured for controlling touch testing by the testing members.

4. The testing apparatus as claimed in claim 3, wherein the electromagnetic valves connect with the testing members.

5. The testing apparatus as claimed in claim 4, wherein the control module further comprises an air pressure regulator configured for adjusting the strength of the testing members.

6. The testing apparatus as claimed in claim 4, wherein the testing members each comprises a driving mechanism and a testing pen, the driving mechanism connecting the testing pen and pneumatically drived to drive the testing pen to test the touch screen.

7. The testing apparatus as claimed in claim 6, wherein the driving mechanism comprises a pneumatically cylinder connecting to the electromagnetic valve, and a driving piston connecting to the testing pen, the driving piston controlled by the electromagnetic valve to move back and forth within the cylinder.

8. The testing apparatus as claimed in claim 7, wherein the testing pen comprises a testing pin configured for testing the touch screen.

9. The testing apparatus as claimed in claim 8, wherein the base comprises:

an upper board defining a plurality of first testing holes;

the testing platform defining a plurality of second testing holes aligning with the first testing holes;

the testing pens positioned between the positioning board and the upper board, the upper board positioned between the testing platform and the positioning board; and

the testing pins configured for passing through the first and second testing holes.

10. The testing apparatus as claimed in claim 1, wherein the holding mechanism comprise a holding member, a base member, and a hinge, the base member fixed to the base, the holding member rotatably connecting to the base member by the hinge.

11. The testing apparatus as claimed in claim 10, wherein the base comprises an upper board, and the holding member is configured for rotating from a standby position to a holding position by the hinge, whereas:

at the standby position, the holding member is biased by the hinge away from the upper board;

at the holding position, the holding member rotates to be parallel to the upper board and secured by the biasing force of the hinge, the holding member holding the touch screen on the testing platform.

12. The testing apparatus as claimed in claim 11, wherein the holding member comprises an engaging column, the upper board defines an engaging hole, the engaging column engages into the engaging hole when holding member is at the holding position.

13. The testing apparatus as claimed in claim 11, wherein the holding mechanism further comprise two positioning members for positioning a printed circuit board, the printed circuit board associated with the touch screen, the positioning members comprising:

two supporting portions configured for supporting the printed circuit board; and

two positioning portions configured for positioning the printed circuit board therebetween.

14. A testing apparatus for testing a touch screen used in an electronic device, comprising:

a hollow base;

a pneumatically drived testing device comprising;

a testing platform mounted at outside of the base and configured for carrying the touch screen;

a positioning board mounted within the base; and

a plurality of testing members positioned on the positioning board and within the base and, be movable to test the touch screen;

a holding mechanism mounted at the outside of the base and be rotatably to hold the touch screen on the testing platform during the testing members testing the touch screen; and

a control module mounted within the base and configured for electrically controlling the movement of the testing members.

15. The testing apparatus as claimed in claim 14, wherein the control module comprises a controller and a plurality of electromagnetic valves corresponding to the plurality of the testing members, the controller electrically connecting with the electromagnetic valves and configured for controlling operation of the electromagnetic valves, the electromagnetic valves configured for controlling touching test of the testing members.

16. The testing apparatus as claimed in claim 15, wherein the control module further comprises an air pressure regulator configured for adjusting strength of the touching test of the testing members.

17. The testing apparatus as claimed in claim 16, wherein the testing members each comprises a driving mechanism and a testing pen, the driving mechanism comprises a pneumatically cylinder connecting to the electromagnetic valve, and a driving piston connecting to the testing pen, the driving piston controlled by the electromagnetic valve to move back and forth within the cylinder.

18. The testing apparatus as claimed in claim 17, wherein the testing pen comprise a testing pin configured for testing the touch screen, the base comprises:

an upper board defining a plurality of first testing holes;

the testing platform defining a plurality of second testing holes aligning with the first testing holes;

the testing pens positioned between the positioning board and the upper board, the upper board positioned between the testing platform and the positioning board; and

the testing pins configured for passing through the first and second testing holes.

19. The testing apparatus as claimed in claim 14, wherein the base comprises an upper board, the holding mechanism comprise:

a rotary means;

a holding member rotatably connecting to the base member by the rotary means; and

a base member fixed to the base;

wherein the holding member is configured for rotating from a standby position to a holding position by the hinge, whereas;

at the standby position, the holding member is biased by the hinge away from the upper board;

at the holding position, the holding member rotates to be parallel to the upper board and secured by the biasing force of the hinge, the holding member holding the touch screen on the testing platform.

20. The testing apparatus as claimed in claim 19, wherein the holding member comprises an engaging column, the upper board defines an engaging hole, the engaging column engages into the engaging hole when holding member is at the holding position.