Force touch sensing structure, force touch display device, and force touch sensing method using same
AssigneesInterface Technology (ChengDu) Co., Ltd., Interface Optoelectronics (Shenzhen) Co., Ltd., General Interface Solution Limited
InventorChien-Hung Lin
Life of this patent
Estimating the term…
Abstract
A force touch sensing structure which is immune to changes in sensitivity caused by external factors defines a force touch sensing area. The force touch sensing structure includes protrusions in the force touch sensing area, at least one image recognition camera, and a processor. A height of at least one protrusion varies when the force touch sensing area is force touched. The image recognition camera detects positions of the height-varied protrusions and the extent of the variations. The processor receives and processes signals from the at least one image recognition camera to obtain force touch position and touch force.
Claims17
A force touch sensing structure defining a force touch sensing area, the force touch sensing structure comprising:
- a plurality of protrusions in the force touch sensing area, wherein a relative height of at least one of the plurality of protrusions varies when the force touch sensing area is being force touched;
- at least one image recognition camera configured to detect a position of the at least one of the plurality of protrusions varying in the relative height and detect a height variation of the at least one of the plurality of protrusions;
- and
- a processor configured to receive and process signals from the at least one image recognition camera to obtain a force touch position and a touch force.
A force touch display device, comprising:
- a display panel;
- and
- a force touch sensing structure located on a side of the display panel;
- the force touch sensing structure defining a force touch sensing area and comprising:
- a plurality of protrusions in the force touch sensing area, wherein a relative height of at least one of the plurality of protrusions varies when the force touch sensing area is being force touched;
- at least one image recognition camera configured to detect a position of the at least one of the plurality of protrusions varying in the relative height and detect a height variation of the at least one of the plurality of protrusions;
- and
- a processor configured to receive and process signals from the at least one image recognition camera to obtain a force touch position and a touch force.
A force touch sensing method, comprising:
- continuously detecting whether there is a force touch event in a force touch sensing area;
- powering on one corresponding image recognition camera if a force touch event in the force touch sensing area is detected;
- detecting a position and a height variation of a protrusion in the force touch sensing area having a lowest point by the one corresponding image recognition camera;
- and obtaining force touch position and touch force according to signals from the one corresponding image recognition camera.
Dependencies are inferred from the claim text.