TWI514209B - Touching feedback apparatus and application thereof - Google Patents

Description

Touch feedback device and its application

The invention is a touch feedback device, in particular a device applied to a flat touch display and capable of generating a feedback effect.

Smart mobile phones are undoubtedly the fastest growing electronic products in recent years. Mobile phones are no longer mobile phones, but are mobile assistants, play equipment, information sources or navigation systems that many people must carry with them.

The current mainstream method of touch mobile devices is based on touch. In order to allow users to generate feedback during the touch or click process, the current smart mobile devices use a built-in vibrator to generate vibration effects. In this way, the user can feel the feedback effect when the user uses the touch function.

However, the current feedback method cannot produce different feedback effects on multiple touch positions or modes, and the effect is monotonous without change.

In order to solve the technical problem that the feedback mode is monotonous and has no intention to reduce the intention to use, the present invention provides a touch feedback device capable of generating feedback effects according to the touch position, solving the problems of the prior art and achieving diversified touch The technical effect of feeding.

The present invention provides a touch feedback device comprising a reaction layer, a control layer and a feedback controller, wherein: the reaction layer comprises a reaction layer substrate and a plurality of conductive layers fixed to the substrate of the reaction layer at equal intervals a feedback component, the conductive feedback component is transparent and electrically conductive, the reactive layer substrate is a flexible flexible sheet; the control layer comprises a control layer substrate and a plurality of equally spaced magnetic fields generated on the control layer substrate Components, each of the magnetic field generating components respectively corresponding to one of the conductive feedback components, each of the magnetic field generating components being electrically connected to the feedback controller, which is controlled by the feedback controller to generate a driving magnetic field; and the feedback control Controlling a specific magnetic field generating component to generate the driving magnetic field according to a touch sensing result signal of a touch display, so that the conductive feedback component corresponding to the position of the magnetic field generating component generates an induced magnetic field and slightly deflects the local response Layer substrate.

Wherein, the conductive feedback component is formed on a top surface of the reaction layer substrate, a bottom surface or a substrate embedded in the reaction layer.

The material of the conductive feedback component may be a transparent conductive oxide or a light transmissive metal.

The magnetic field generating component is a coil, and two ends of the magnetic field generating component are electrically connected to the feedback controller.

Wherein, the plurality of coils are arranged in a matrix, and the first ends of the magnetic field generating elements in the longitudinal direction are connected to each other and connected to the feedback controller, and the second ends of the magnetic field generating elements in the same row are connected to each other and the feedback controller connection.

The present invention further provides a display panel with a touch feedback effect, comprising a touch feedback device, a touch panel and a display, which are combined with each other, and the touch feedback device comprises a reaction layer, a control layer and a feedback controller, the reaction layer comprises a reaction layer substrate and a plurality of conductive feedback elements fixed to the reaction layer substrate at equal intervals, the conductive feedback element is transparent and electrically conductive, and the reaction layer substrate is flexible a soft sheet; the control layer comprises a control layer substrate and a plurality of equally spaced magnetic field generating elements formed on the control layer substrate, each of the magnetic field generating elements respectively corresponding to one of the conductive feedback elements, each of the magnetic fields The generating component is electrically connected to the feedback controller, and is controlled by the feedback controller to generate a driving magnetic field. The feedback controller controls the specific magnetic field generating component to generate the signal according to the touch sensing result signal of the touch panel. Driving a magnetic field such that the conductive feedback element corresponding to the position of the magnetic field generating element generates an induced magnetic field and is slightly deflected locally The reaction layer of the substrate.

The conductive feedback component is formed on a top surface of the reaction layer substrate, a bottom surface or a substrate embedded in the reaction layer. The conductive feedback component may be a transparent conductive oxide or a light-transmissive metal.

The magnetic field generating component is a coil, and two ends of the magnetic field generating component are electrically connected to the feedback controller.

Wherein, the plurality of coils are arranged in a matrix, and the first ends of the magnetic field generating elements in the longitudinal direction are connected to each other and connected to the feedback controller, and the second ends of the magnetic field generating elements in the same row are connected to each other and the feedback controller connection.

The touch panel is a resistive or light-sensitive touch sensor, and the display can be a liquid crystal display or an organic light-emitting diode display.

As can be seen from the foregoing description, the present invention can generate corresponding local touch feedback according to the user's touch position, and let the user feel the diversified feedback effect when using the touch screen, and solve many problems of the prior art.

10‧‧‧Touch feedback device

12‧‧‧Reaction layer

121‧‧‧Reactive layer substrate

122‧‧‧Conductive feedback components

14‧‧‧Control layer

141‧‧‧Control layer substrate

142‧‧‧ Magnetic field generating components

16‧‧‧Feedback controller

20‧‧‧Touch panel

30‧‧‧ display

40‧‧‧Master controller

50‧‧‧ fingers

The first figure is an exploded view of a preferred embodiment of the present invention.

The second figure is a schematic view of a layered structure of a preferred embodiment of the present invention.

The third figure is a partial enlarged use schematic diagram of a preferred embodiment of the present invention.

The fourth figure is a partially enlarged schematic view of a preferred embodiment of the present invention.

Figure 5 is a partially enlarged schematic view of a preferred embodiment of the present invention.

Figure 6 is a block diagram of a system in accordance with a preferred embodiment of the present invention.

Figure 7 is a schematic illustration of the use of a preferred embodiment of the invention.

The eighth figure is a schematic diagram of the control flow of the preferred embodiment of the present invention.

Please refer to the first to fourth embodiments, which are a preferred embodiment of the touch feedback device 10 of the present invention, which can be integrated and mounted on a display surface. The display comprises a touch panel 20 and a display 30. The type of the panel 20 can be a resistive or capacitive touch sensing, and the display 30 can be a liquid crystal display, an organic light emitting diode display, or the like.

The touch feedback device 10 includes a reaction layer 12, a control layer 14 and a feedback controller 16. The reaction layer 12 includes a reaction layer substrate 121 and a plurality of conductive layers that are fixed to the reaction layer substrate 121 at equal intervals. The feedback component 122 of the present embodiment is transparent and electrically conductive, and can be fabricated on a top surface and a bottom surface of the reaction layer substrate 121. Or embedded in the reaction layer substrate 121, the material thereof may be a transparent conductive oxide, a light-transmitting metal or the like. The reaction layer substrate 121 is a flexible flexible sheet.

The control layer 14 includes a control layer substrate 141 and a plurality of equally spaced magnetic field generating elements 142 formed on the control layer substrate 141. The control layer substrate 141 is fixedly disposed on the surface of the touch panel 20 in this embodiment. Each of the magnetic field generating elements 142 respectively corresponds to one of the conductive feedback elements 122, and each of the magnetic field generating elements 142 is electrically connected to the feedback controller 16, which is controlled by the feedback controller 16 to generate a driving magnetic field Mg. The magnetic field generating element 142 of the embodiment is a coil, and two ends thereof are electrically connected to the feedback controller 16, respectively, and the plurality of coils are arranged in a matrix, and the first ends of the magnetic field generating elements 142 in the longitudinal direction are connected to each other. Connected to the feedback controller 16, the second ends of the magnetic field generating elements 142 in the same row are connected to each other and connected to the feedback controller 16, as shown in the fourth figure. In this manner, the feedback controller 16 can drive a specific magnetic field generating component 142 to generate a driving magnetic field Mg at a specific time, and the driving magnetic field Mg generates an induced eddy current adjacent to the conductive feedback component 122, and the sensing The eddy current generates an induced magnetic field Mi that repels the driving magnetic field Mg, causing the conductive feedback element 122 to be pushed by a biasing force F to protrude outward.

When in use, please refer to the fourth to seventh figures. When a user's finger 50 touches the touch panel 20, the touch panel 20 outputs the sensing result to a main controller 40, and the main controller 40 can The main controller 40 of a smart mobile device, such as a smart phone, a tablet computer, or the like, the main controller 40 can be further electrically connected to the feedback controller 16 through a control circuit and a driving circuit. The main controller 40 is based on the touch panel The position of the finger 50 sensed by the control circuit and the driving circuit indirectly controls the feedback controller 16 to drive the magnetic field generating component 142 of the specific position to generate the driving magnetic field Mg, so that the user's finger 50 feels the feedback force. F.

Referring to the eighth figure, the step of driving the feedback controller 16 after the main controller 40 senses the position of the finger 50 can be as follows:

1. Receiving the sensing signal according to the timing: the main controller 40 receives the touch sensing result of the finger 50 of the touch panel 20 according to the timing.

2. Reading the sensing range of the contact point: the main controller 40 receives the sensing range of the finger 50 contacting the touch panel 20; the so-called sensing range means that the finger 50 and the touch panel 20 actually The range of touch points that trigger the sensing. The user's finger 50 touches the touch panel 20 differently, and may trigger different numbers of touch points. Therefore, the main controller 40 can simultaneously sense different range of sensing ranges. The main controller 40 senses electrical (resistance, capacitance) or optical perception results by the touch of the user's finger 50 by analyzing the touch panel 20 according to the type of the touch panel 20.

3. Calculating the coordinate center value and the converted contact point area and the rate of change thereof: the main controller 40 takes the contact point of all the sensing ranges to find the center position as the contact coordinate of the finger 50 and the touch panel 20, and The main controller 40 continuously calculates and tracks the range of each contact point, the coordinate center change trajectory, and its rate of change.

4. Converting the contact area and the change to the equivalent contact pressure value: the main controller 40 converts to an equivalent contact pressure value according to the sensing touch area area and the change rate of the area (position or pressure change). Equivalent contact pressure The force value is the equivalent contact pressure data obtained by converting the contact area size. For example, the larger the area, the larger the equivalent contact pressure data is converted.

5. Converting the contact area change rate into a control command: The main controller 40 converts the calculation result of the change rate into a signal format required for output to the feedback controller 16.

6. Calculating the coil position coordinate corresponding to the touch position: the main controller 40 senses the position of the finger 50 in the calculation result, and correspondingly controls the feedback controller 16 to drive the magnetic field generating element 142 corresponding to the position of the finger 50, A driving magnetic field Mg is generated.

7. The drive coil generates tactile feedback: the conductive feedback element 122 generates an induced magnetic field Mi to generate a force F for the user to feel the feedback force. In order to enhance the feedback force, the feedback controller 16 can continue to charge the capacitor. When the magnetic field generating component 142 is to be driven, the capacitor is discharged to the magnetic field generating component 142, causing the magnetic field generating component 142 to generate a relatively large instantaneous current. . Alternatively, the magnetic wave generating element 142 can be supplied with sufficient electric power to generate a sufficient magnetic field by connecting an external power device to achieve the aforementioned effect.

As can be seen from the foregoing description, the present invention can generate corresponding local touch feedback according to the user's touch position, and let the user feel the diversified feedback effect when using the touch screen, and solve many problems of the prior art.

10‧‧‧Touch feedback device

12‧‧‧Reaction layer

121‧‧‧Reactive layer substrate

122‧‧‧Conductive feedback components

14‧‧‧Control layer

141‧‧‧Control layer substrate

142‧‧‧ Magnetic field generating components

20‧‧‧Touch panel

30‧‧‧ display

Claims (3)

A touch feedback device includes a reaction layer, a control layer and a feedback controller, wherein: the reaction layer comprises a reaction layer substrate and a plurality of conductive feedback elements fixed to the substrate of the reaction layer at equal intervals. The conductive feedback element is transparent and electrically conductive, and the reaction layer substrate is a flexible flexible sheet; the control layer comprises a control layer substrate and a plurality of equally spaced magnetic field generating elements formed on the control layer substrate, each The magnetic field generating components respectively correspond to one of the conductive feedback components, each of the magnetic field generating components being electrically connected to the feedback controller, and receiving the control of the feedback controller to generate a driving magnetic field; the feedback controller is based on a touch Controlling the touch sensing result signal of the display, controlling the specific magnetic field generating component to generate the driving magnetic field, and causing the conductive feedback component corresponding to the position of the magnetic field generating component to generate an induced magnetic field and slightly deflecting the reactive layer substrate; The conductive feedback element is formed on a top surface of the reaction layer substrate, a bottom surface or a substrate embedded in the reaction layer The material of the conductive feedback component may be a transparent conductive oxide or a light-transmissive metal; the touch feedback device is a coil, and two ends thereof are electrically connected to the feedback controller respectively; and the plurality of coils form a matrix The first ends of the magnetic field generating elements in the longitudinal direction are connected to each other and connected to the feedback controller, and the second ends of the magnetic field generating elements in the same row are connected to each other and connected to the feedback controller. A display panel with a touch feedback effect, comprising a touch feedback device, a touch panel and a display, wherein the touch feedback device comprises a reaction layer, a control layer and a feedback controller The reaction layer comprises a reaction layer substrate and a plurality of conductive feedback elements fixed to the reaction layer substrate at equal intervals. The conductive feedback element is transparent and electrically conductive, and the reaction layer substrate is a flexible soft sheet. The control layer includes a control layer substrate and a plurality of equally spaced magnetic field generating elements formed on the control layer substrate, each of the magnetic field generating elements respectively corresponding to one of the conductive feedback elements, each of the magnetic field generating elements and the The feedback controller is electrically connected, and receives the control of the feedback controller to generate a driving magnetic field. The feedback controller controls the specific magnetic field generating component to generate the driving magnetic field according to the touch sensing result signal of the touch panel. The conductive feedback element corresponding to the position of the magnetic field generating element generates an induced magnetic field and slightly deflects the reactive layer base The conductive feedback component is formed on a top surface of the reaction layer substrate, a bottom surface or a substrate embedded in the reaction layer, and the conductive feedback component material may be a transparent conductive oxide or a light transmissive metal; the magnetic field generating component is a a coil, the two ends of which are respectively electrically connected to the feedback controller; the plurality of coils are arranged in a matrix, and the first ends of the magnetic field generating elements in the same longitudinal direction are connected to each other and connected to the feedback controller, and the magnetic field is laterally arranged in the same row The second ends of the generating components are connected to each other and connected to the feedback controller. The display panel with the touch feedback effect described in claim 2, wherein the touch panel is a resistive or light-sensitive touch sensor, The display can be a liquid crystal display or an organic light emitting diode display or the like.