Touch panel with touch pads

• US 20090322703A1
• Filed: 06/06/2009
• Published: 12/31/2009
• Est. Priority Date: 06/26/2008
• Status: Abandoned Application

• Current Assignee: Qisda Corporation
• Original Assignee: Qisda Corporation
• Inventors: Cheng, Chieh-Yuan, Lee, Chang-Hung, Tseng, Cheng-Te
• Application Number:
  US12/479,770
• Publication Number:
  US 20090322703A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch panel with touch pads includes a transparent substrate, a transparent electrode and a plurality of conductive lines. The transparent substrate has a display region. The transparent electrode is disposed on the transparent substrate and has a plurality of first touch blocks and a second touch block. The first touch blocks are disposed along the edges of the display region. The second touch block is disposed within the region surrounded by the first touch blocks and has an extending block passing through a gap between the first touch blocks and extending to the edge of the display region. The conductive lines are disposed outside the display region and electrically connected to the first touch blocks and the extending block adjoining the edges of the display region.

Claims

1. A touch panel, comprising:

a transparent substrate having a display region;

a transparent electrode disposed on the transparent substrate comprising;

a plurality of first touch blocks disposed along edges of the display region; and

a second touch block surrounded by the first touch blocks and having an extending block passing through a first gap between two of the first touch blocks which located at the same edge of the display region and the first gap extending to the edge of the display region;

a plurality of first conductive lines disposed outside the display region and electrically connected to the first touch blocks adjoining the edges of the display region; and

a second conductive line disposed outside the display region and electrically connected to the first extending block adjoining the edges of the display region.

2. The touch panel according to claim 1, wherein the second touch block further comprises a second extending block passing through a second gap between two of the first touch blocks and extending to the edge of the display region.

3. The touch panel according to claim 2, further comprising:

a third conductive line disposed outside the display region and electrically connected to the second extending block adjoining the edges of the display region;

wherein the width of the third conductive line and the width of the second conductive line are smaller than the width of the first conductive line.

4. The touch panel according to claim 3, wherein the width of the third conductive line and the width of the second conductive line are smaller than one third of the width of the first conductive line.

5. The touch panel according to claim 1, wherein the display region is substantially covered by the first touch blocks and the second touch block.

6. The touch panel according to claim 1, wherein the first gap between the the first touch blocks is smaller than half the thickness of the transparent substrate.

7. The touch panel according to claim 1, wherein the first gap is smaller than 30 μ

m.

8. The touch panel according to claim 1, further comprising:

a transmission interface connected to the first conductive lines and the second conductive line.

9. A touch panel, comprising:

a transparent substrate having a display region;

a plurality of first transparent electrode touch blocks and a second transparent electrode touch block disposed on the transparent substrate, wherein the first transparent electrode touch blocks are disposed along at least one the edge of the display region, and the second transparent electrode touch block comprising a main touch block and a first extending block, wherein the main touch block is disposed far away the edge of the display region, and the first extending block extends to the edge of the display region and connected to the main touch block;

a plurality of first conductive lines disposed outside the display region and respectively connected to the first transparent electrode touch blocks adjoining the edges of the display region; and

a second conductive line disposed outside the display region and electrically connected to the first extending block adjoining the edges of the display region.

10. The touch panel according to claim 9, wherein the first extending block passes through a gap between two of the first transparent electrode touch blocks and extends to the edge of the display region.

11. The touch panel according to claim 9, the second transparent electrode touch block further comprising a second extending block, the first extending block and the second extending block respectively pass through two different gaps among the first transparent electrode touch blocks and extend to the edge of the display region.

12. The touch panel according to claim 11, further comprising:

a third conductive line electrically connected to the second extending block adjoining the edges of the display region

wherein the width of the third conductive line and the width of the second conductive line are smaller than the width of the first conductive line.

13. The touch panel according to claim 12, wherein the width of the third conductive line and the width of the second conductive line are smaller than one third of the width of the first conductive line.

14. The touch panel according to claim 9, wherein the display region is substantially covered by the first transparent electrode touch blocks and the second transparent electrode touch block.

15. The touch panel according to claim 9, wherein the gap between the the first transparent electrode touch blocks is smaller than half the thickness of the transparent substrate.

16. The touch panel according to claim 9, wherein the gap between the the first transparent electrode touch blocks is smaller than 30 μ

m.

17. The touch panel according to claim 9, further comprising:

a transmission interface connected to the first conductive lines and the second conductive line.

18. A touch panel, comprising:

a transparent substrate having a display region;

a transparent electrode disposed on the transparent substrate comprising;

a first touch block;

a second touch block, the first touch block and the second touch block disposed adjacent and along a first edge of the display region; and

a third touch block disposed adjacent to the first touch block and the second touch block, the third touch block comprising a first extending block passing through a first gap between the first touch block and the second touch block.

19. The touch panel according to claim 18, the transparent electrode further comprising:

a fourth touch block, wherein the third touch block further comprising a second extending block passing through a second gap between the first touch block and the fourth touch block.

20. The touch panel according to claim 18, the transparent electrode further comprising:

a fourth touch block; and

a fifth touch block, wherein the third touch block further comprising a second extending block passing through a second gap between the fourth touch block and the fifth touch block.