Himax Technologies, Inc.

Chun-Jen Su

Cheng-Hung Tsai

Chun-Kai Chuang

Wai-Pan Wu

Li-Lin Liu

Po-Hsuan Huang

Yu-Hsiang Lin

Wen-Sen Su

Heng-Xiao Chen

Heng-An Hsu

Yen-Hsiang Lin

A calibration method and a calibration apparatus for a knob applicable to a touch panel are provided. The knob includes at least one sensing pad. The calibration method includes: obtaining sensed position(s) of each sensing pad by sensing a position of the sensing pad through the touch panel; and calculating a position of a center of the knob by using a formula of a radius of a circumscribed circle according the sensed position(s) of each sensing pad.

Calibration method and calibration apparatus for knob applicable to touch panel

A touch signal processing method, for a touch display integrated device including a plurality of touch display units, is provided. Each of the plurality of touch display units includes a touch microcontroller unit (MCU). The touch signal processing method includes sensing, by a sensing module of each of the plurality of touch display units, a physical area corresponding to each of the plurality of touch display units to generate a plurality of sensing raw data; passing, by an (n&#x2212;1)-th touch MCU of the plurality of touch display units, a plurality of overlap sensing raw data corresponding to an overlap area of the physical area to an n-th touch MCU; and determining, by each of the touch MCU of the plurality of touch display units, a coordinate information corresponding to a touch location of a processing area.

Touch signal processing method and related touch device

A touch screen includes a touch panel including a plurality of touch blocks, and a knob, being touch-sensitive and rotatable, disposed on top of the touch panel. An area of the touch panel not covered with the knob is defined as a first area, an area of the touch panel covered with the knob is defined as a second area, and touch blocks belonging to both the first area and the second area are defined as overlapped blocks. Sense signals associated with the overlapped blocks are de-emphasized.

Touch screen

A knob device is applicable to a touch panel. The knob device includes a knob cover, a plurality of sensing pads and a rotation sensing element. The plurality of sensing pads are fixedly arranged on the touch panel. A gap is form between two sensing pads. The plurality of sensing pads and gaps are distributed in a ring area around a center of an orthographic projection of the knob cover. The rotation sensing element is connected to the knob cover. When the knob cover is turned to be rotated, the rotation sensing element is rotated synchronously. When a user touches the knob device and the rotation sensing element overlaps one of the plurality of sensing pads, the touch panel generates a rotation sensing signal in response to a location of the rotation sensing element.

Knob device applicable to touch panel

A knob device is applicable to a touch panel. The knob device includes a knob cover; and a rotation sensing element. The rotation sensing element includes a base and a plurality of sensing pads connected to the knob cover. The rotation sensing element is arranged between the touch panel and the knob cover. The base is connected to the knob cover. When a user touches the knob device, the touch panel generates a rotation sensing signal in response to a location of the plurality of sensing pads. An orthographic projection of the knob cover on the touch panel is divided into a plurality of parts, the plurality of parts are distributed radially from a center of the orthographic projection of the knob cover, each sensing pad is located in a part and connected to another sensing pad located in another part adjacent to the part.

A knob device is applicable to a touch panel. The touch panel includes a plurality of panel sensors. The knob device includes a knob cover, a sensing pad, a compensation sensor and a switch. The sensing pad is arranged between the knob cover and the touch panel. The switch is configured to selectively connect the sensing pad to the compensation sensor. When a move event of the knob device occurs, the switch is turned on and the sensing pad is electrically connected to the compensate sensor through the switch, such that a feedback loop is generated by the sensing pad, the compensation sensor and the touch panel to change a quantity of electric charge of at least one of the plurality of panel sensors. When a touch and rotation event of the knob device occurs, a location of the sensing pad controls a rotation sensing signal.

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Tainan, Taiwan

Chun-Jen Su