TOUCH DEVICE

• US 20110080370A1
• Filed: 09/13/2010
• Published: 04/07/2011
• Est. Priority Date: 10/05/2009
• Status: Abandoned Application

• Current Assignee: Raydium Semiconductor Corporation
• Original Assignee: Raydium Semiconductor Corporation
• Inventors: Wu, Tung-Ke
• Application Number:
  US12/880,160
• Publication Number:
  US 20110080370A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A touch device includes a plurality of row electrodes, a plurality of column electrodes and a plurality of sensing units. The sensing units are used for detecting touched positions according to potentials of the row electrodes and column electrodes. The sensing units include at least a first sensing unit and a second sensing unit. The first sensing unit is coupled to a first portion of the row electrodes and a first portion of the column electrodes. The second sensing unit is coupled to a second portion of the row electrodes that is different from the first portion of the row electrodes, and a second portion of the column electrodes that is different from the first portion of the column electrodes.

Claims

1. A touch device, comprising:

a plurality of row electrodes;

a plurality of column electrodes; and

a plurality of sensing units, for detecting touched positions according to potentials of the row electrodes and the column electrodes, comprising;

at least a first sensing unit, coupled to a first portion of the row electrodes and a first portion of the column electrodes; and

at least a second sensing unit, coupled to a second portion of the row electrodes that is different from the first portion of the row electrodes, and coupled to a second portion of the column electrodes that is different from the first portion of the column electrodes.

2. The touch device of claim 1, further comprising:

a row electrode, coupled to the first sensing unit and the second sensing unit.

3. The touch device of claim 2, further comprising:

a column electrode, coupled to the first sensing unit and the second sensing unit.

4. The touch device of claim 1, wherein an electrode number of the first portion of the row electrodes is equal to an electrode number of the second portion of the row electrodes.

5. The touch device of claim 4, wherein an electrode number of the first portion of the column electrodes is equal to an electrode number of the second portion of the column electrodes.

6. The touch device of claim 1, wherein an electrode number of the first portion of the column electrodes is equal to an electrode number of the second portion of the column electrodes.

7. The touch device of claim 1, wherein the first portion of the row electrodes comprises a plurality of sequential row electrodes of the row electrodes.

8. The touch device of claim 1, wherein the first portion of the column electrodes comprises a plurality of sequential column electrodes of the column electrodes.

9. The touch device of claim 1, wherein the second portion of the row electrodes comprises a plurality of sequential row electrodes of the row electrodes.

10. The touch device of claim 1, wherein the second portion of the column electrodes comprises a plurality of sequential column electrodes of the column electrodes.

11. The touch device of claim 1, wherein the row electrodes and the column electrodes are all driving/sensing electrodes.

12. The touch device of claim 1, being a capacitive touch panel.