Touch device

Abstract

A touch device includes a first / second display area and comprises a touch panel, a touch chip, a USB interface, and a main control board. The touch panel includes a first / second touch area corresponding to the first / second display area. The touch chip includes first / second logical partitions, each corresponding to a first / second touch event from the first / second touch area. The touch chip is configured to process signals from the first logical partition into a first signal conforming to a first communication protocol, and to process signals from the second logical partition into a second signal conforming to a second communication protocol. The first / second signals are output to the main control board via the USB interface. The main control board is configured to identify the first / second touch event corresponding to the first / second signal according to the first / second communication protocol.

Claims

1. A multi-display-area touch device, comprising a first display area and a second display area, the touch device including: A touch panel includes a first touch area and a second touch area, the first touch area corresponding to a first display area and the second touch area corresponding to a second display area; a touch chip electrically connected to the touch panel, the touch chip including a first logical partition and a second logical partition, the first logical partition corresponding to a first touch event from the first touch area and the second logical partition corresponding to a second touch event from the second touch area, the touch chip being configured to process the signal of the first logical partition into a first signal conforming to a first communication protocol and to process the signal of the second logical partition into a second signal conforming to a second communication protocol; a Universal Serial Bus (UCB). The system includes a Bus (USB) interface and a main control board electrically connected to the touch chip, wherein the first signal and the second signal are output to the main control board via the USB interface. The main control board is configured to identify, according to the first communication protocol, that the first signal corresponds to the first touch event, and according to the second communication protocol, that the second signal corresponds to the second touch event.

2. The touch device as described in claim 1, wherein the first communication protocol is a human-machine interface device communication protocol and the second communication protocol is a USB virtual serial port communication protocol.

3. The touch device as described in claim 1, further comprising: A first display module is positioned below the touch panel, corresponding to the first display area. And a second display module, which is located below the touch panel.

4. The touch device as claimed in claim 3, wherein the main control board is further configured to control the operation of the first display module according to the first signal and to control the operation of the second display module according to the second signal.

5. The touch device as claimed in claim 3, wherein the first display module is a liquid crystal display module and the second display module is a passive matrix organic light-emitting diode (PMOLED) display module.

6. The touch device as claimed in claim 1, wherein the first display area is larger than the second display area.

7. The touch device as claimed in claim 1, wherein the first touch area and the second touch area are connected to the first logical partition and the second logical partition of the touch chip via signal lines.

8. The touch device as claimed in claim 1, wherein the touch chip is further configured to establish a boundary between the first logical partition and the second logical partition, and to perform the following processing on a touch event occurring at the boundary: determining the strength of the signal corresponding to the touch event in the first logical partition and the second logical partition; if the signal strength in the first logical partition is greater than the signal strength in the second logical partition, the touch chip considers the touch event as the first touch event; if the signal strength in the second logical partition is greater than the signal strength in the first logical partition, the touch chip considers the touch event as the second touch event.

9. The touch device as claimed in claim 1, wherein the touch chip is further configured to convert a first logical coordinate of one of the first logical partitions into a first display coordinate corresponding to one of the first display areas according to a first conversion relationship, and to report the first display coordinate to the main control board with the first signal, wherein the first conversion relationship includes a scaling parameter and a coordinate offset parameter.

10. The touch device as claimed in claim 1, wherein the touch chip is further configured to convert a second logical coordinate of one of the second logical partitions into a second display coordinate corresponding to one of the second display areas according to a second conversion relationship, and to report the second display coordinate to the main control board with the second signal, wherein the second conversion relationship includes a scaling parameter and a coordinate offset parameter.

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