TWI689857B - Touch knob device - Google Patents

Abstract

The invention discloses a touch knob device, which comprises a knob body, a fixing base, a base and two first touch pads. The bottom of the knob body has a recess having an open end and a closed end opposite to each other, the closed end extending toward the open end to form a convex shaft in the recess. The top and the bottom of the fixing base respectively have a slot and a mounting slot, and the protruding shaft is rotatably inserted into the slot and accommodates the fixing seat in the recess. The base is disposed in the mounting slot and is exposed from the open end. The first touch pad is disposed on the bottom surface of the knob body, and the base is located between the first touch pads. The bottom of the base and the bottom surface of the first touch pad are disposed on a touch display panel to retain the knob itself. At the same time, enlarge the screen of the panel.

Description

Touch knob device

The invention relates to a knob device, and particularly to a touch knob device.

In order to make portable information products have a more user-friendly user interface, it has become a trend to integrate touch panels or touch pads. Related panel manufacturers and IC design companies have listed touch panel technology as the main R&D project. Related technologies and products have also been applied to daily life electronic products, such as mobile phones, computers and personal mobile assistants. And other information products.

At present, the most commonly used touch devices are mainly divided into resistive and capacitive. The main working principle of the capacitive touch device is to sense an electrical characteristic called capacitance. When two layers of electrically conductive objects come close to each other without touching, their electric fields will interact to form a capacitance. The upper and lower surfaces of the touchpad structure are conductive layers formed by electrode lines in alternating directions. The finger is also an electrical conductor. When the finger is placed on the touchpad, an extremely small capacitance is formed between the electrode circuit of the touchpad and the finger. The microprocessor detects the touched position of the user by changing the capacitance value. However, in the era of prevalence of touch, mechanical buttons are still indispensable in the cockpit, which allows the driver to remove his eyes from the road to increase safety. However, in order to place the knob, as shown in FIG. 1, in a fixed area, the knob 10 occupies a part of the area, and the remaining area belongs to the touch display panel 12. In other words, the physical knob 10 takes up much space, so the screen size of the touch display panel 12 is limited.

Therefore, the present invention is directed to the above-mentioned problems, and proposes a touch knob device to solve the problems caused by the conventional knowledge.

The main object of the present invention is to provide a touch knob device which is directly attached to a touch display panel with a touch pad to retain itself, and at the same time enlarge the screen of the display panel.

In order to achieve the above object, the present invention provides a touch knob device including a knob body, a fixing base, a base and two first touch pads. The bottom of the knob body has a groove. The groove has an open end and a closed end opposite to each other. The closed end extends toward the open end to form a convex shaft in the groove. The top and bottom of the fixing seat respectively have a slot and a mounting slot, the convex shaft is rotatably inserted into the slot, and the fixing seat is accommodated in the groove. The base is set in the installation groove and exposed from the open end. The first touch pad is disposed on the bottom surface of the knob body. The base is located between the two first touch pads. The bottom of the base and the bottom surface of the first touch pad are attached to a touch display panel.

In one embodiment of the present invention, the side wall of the convex shaft is provided with a notch, one end of a spring is fixed in the notch, and the other end of the spring is fixed with a steel ball, the inner wall of the slot is a wavy surface, and the steel ball is fixed in the wavy shape On the surface.

In an embodiment of the invention, the knob body, the convex shaft and the first touch pad are all conductive materials.

In one embodiment of the present invention, the first touch pad is disposed on the bottom surface of the knob body through conductive adhesive.

In one embodiment of the present invention, the touch knob device further includes a second touch pad, the bottom of the base has a bottom groove, the second touch pad is fixed in the bottom groove, and the bottom surface of the second touch pad Attach to the touch display panel.

In one embodiment of the present invention, the bottom of the base is fixed on the touch display panel through double-sided tape.

In one embodiment of the present invention, the touch knob device further includes a connecting rod and a fixing plate. The fixing plate is located in the mounting groove and between the base and the fixing seat. The connecting rod penetrates the base and is located between the fixing plate and the fixing plate. The second touch pads are connected between the fixed board and the second touch pads.

In an embodiment of the invention, the second touch pad, the connecting rod and the fixing plate are integrally formed.

In an embodiment of the invention, the second touch pad, the connecting rod and the fixing plate are made of conductive material.

In an embodiment of the invention, the second touch pad and the first touch pad are located on a straight line.

In order to make your reviewer have a better understanding and understanding of the structural features and achieved effects of the present invention, I would like to use the preferred embodiment drawings and detailed descriptions, the explanations are as follows:

The embodiments of the present invention will be further explained in the following with the related drawings. As much as possible, in the drawings and the description, the same reference numerals represent the same or similar components. In the drawings, the shape and thickness may be exaggerated for simplicity and convenience. It can be understood that the elements that are not specifically shown in the drawings or described in the specification have a form known to those skilled in the art. Those of ordinary skill in the art can make various changes and modifications according to the content of the present invention.

In the following, please refer to FIG. 2, FIG. 3, FIG. 4 and FIG. 5 to introduce the touch knob device of the present invention, which includes a knob body 14, a fixing seat 16, a base 18, two first The touch pad 20, a second touch pad 22, a connecting rod 24 and a fixing plate 26, wherein the knob body 14, the first touch pad 20, the second touch pad 22, the connecting rod 24 and The fixing plate 26 is made of conductive material, for example, the material of the knob body 14 can be aluminum, the first touch pad 20, the second touch pad 22, the connecting rod 24 and the fixing plate 26 can be copper foil or silver paste, and The first touch pad 20 or the second touch pad 22 may be round or square, and the diameter of the round is 3-5 mm. In this embodiment, the first touch pad 20 and the second touch pad 22 are circular. The bottom of the knob body 14 has a groove 28, and the groove 28 has an open end 30 and a closed end 32 opposite to each other. The closed end 32 extends toward the open end 30 in the groove 28 so as to be formed in the groove 28 as The convex shaft 34 is one of the conductive materials. In an embodiment, the convex shaft 34 may be located at the center of the closed end 32. The top and bottom of the fixing base 16 have a slot 36 and a mounting slot 38 respectively. The convex shaft 34 is rotatably inserted into the slot 36 and accommodates the fixing base 16 in the groove 28. The base 18 is provided in the mounting groove 38 and is exposed from the open end 30. The first touch pad 20 is disposed on the bottom surface of the knob body 14 through conductive adhesive. The base 18 is located between the two first touch pads 20. The bottom of the base 18 and the bottom surface of the first touch pad 20 are attached On a touch display panel 40, in this embodiment, the bottom of the base 18 can be fixed on the touch display panel 40 by double-sided tape. The side wall of the convex shaft 34 is provided with a notch 42 in which one end of a spring 44 is fixed, and the other end of the spring 44 is fixed with a steel ball 46. The inner wall of the slot 36 is a wavy surface, and the steel ball 46 is fixed to this wave On the surface. This wavy surface can increase the feel of the knob body 14 when it rotates, that is, a section by section feeling. The bottom of the base 18 has a bottom groove 48 in which the second touch pad 22 is fixed. The bottom surface of the second touch pad 22 is attached to the touch display panel 40. The second touch pad 22 and the first touch pad 20 are on a straight line. In the present invention, the first touch pad 20 and the second touch pad 22 are directly attached to the touch display panel 40 in order to retain the touch knob device itself, and at the same time enlarge the screen of the touch display panel 40, which serves two purposes. The fixing plate 26 is located in the mounting groove 38 and between the base 18 and the fixing base 16. The connecting rod 24 is a long rod. The connecting rod 24 penetrates the base 18 and is located between the fixing plate 26 and the second touch pad 22 To connect the fixing board 26 and the second touch pad 22. In this embodiment, the second touch pad 22, the connecting rod 24, and the fixing plate 26 are integrally formed.

The touch display panel 40 has a control circuit, whereby the length between the first touch pads 20 and the center position between the first touch pads 20, that is, the position of the second touch pad 22 can be calculated. When the user touches the knob body 14, the knob body 14 presses down the first touch pad 20, so that the touch display panel 40 can sense the two coordinates of the first touch pad 20 using the control circuit, further As shown in Fig. 6, when the knob body 14 is rotated, the control circuit can also detect that the two coordinates will also rotate, and further determine whether to rotate clockwise or counterclockwise, or even detect the rotation angle. According to the rotation direction and rotation angle of the two coordinates of the first touch pad 20, the touch display panel 40 uses the control circuit to perform the corresponding function. In addition, as shown in FIG. 7, when the user presses the knob body 14 with a finger, the knob body 14 presses the first touch pad 20 downward, and at the same time, the knob body 14 sequentially passes through the fixing base 16, the fixing plate 26 and the The connecting rod 24 squeezes the second touch pad 22 downward, so that the touch display panel 40 can sense the three coordinates of the first touch pad 20 and the second touch pad 22 using the control circuit. This performs the corresponding pressing function.

In addition to the bottom of the base 18 can be fixed on the touch display panel 40 by double-sided tape, the base 18 can also be realized by a movable suction cup, so that double-sided tape is not needed. Please refer to FIG. 7 and FIG. 8(a). In FIG. 8(a), the touch knob device 50 of the present invention is attached to the touch display panel 40 using a suction cup, wherein the touch display panel 40 further displays The icon 52 is entered, and the position of the touch knob device 50 must be different from the position of the input pattern 52, where the input pattern 52 refers to an application (APP) button displayed on the touch display panel 40, like a smart type The application button on the phone's desktop is the same as the application image on the computer screen. For example, the image of the resource recycling bin is a blue trash can. When the touch knob device 50 moves upward by pressing, since the control circuit can detect the three coordinates of the first touch pad 20 and the second touch pad 22, the touch display panel 40 uses the control circuit Determine whether the edge of the touch knob device 50 touches the edge of the input pattern 52. If so, the touch display panel 40 uses the control circuit to calculate the original position of the touch knob device 50, and moves the input pattern 52 to another suitable position. As shown in FIG. 8(b), the entire screen is optimally arranged; if not, the touch display panel 40 uses the control circuit to maintain the original position of the input pattern 52.

In summary, in the present invention, the touch pad is directly attached to the touch display panel to retain itself and enlarge the screen of the display panel at the same time.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the implementation of the present invention. Therefore, all changes and modifications based on the shape, structure, features and spirit described in the patent application scope of the present invention are cited. , Should be included in the scope of the patent application of the present invention.

10: knob

12: Touch display panel

14: knob body

16: Fixed seat

18: Base

20: First touch pad

22: Second touch pad

24: connecting rod

26: fixed plate

28: groove

30: open end

32: closed end

34: convex shaft

36: slot

38: Installation slot

40: Touch display panel

42: Notch

44: Spring

46: Steel Ball

48: bottom slot

50: Touch knob device

52: Input pattern

FIG. 1 is a position distribution diagram of a knob and a touch display panel in the prior art. FIG. 2 is a perspective view of the structure of the touch knob device of the present invention attached to a touch display panel. Fig. 3 is a cross-sectional view of the structure taken along line A-A' in Fig. 2 of the present invention. 4 is a bottom view of the structure of the touch knob device of the present invention. Fig. 5 is a cross-sectional view taken along line B-B' of Fig. 2 of the present invention. FIG. 6 is a cross-sectional view of the structure of a rotary touch knob device on a touch display panel of the present invention. 7 is a cross-sectional view of the structure of a touch display panel pressing a touch knob device of the present invention. 8(a) to 8(b) are schematic diagrams of steps of the invention for moving a touch knob device on a touch display panel.

14: knob body

16: Fixed seat

18: Base

20: First touch pad

22: Second touch pad

24: connecting rod

26: fixed plate

28: groove

30: open end

32: closed end

34: convex shaft

36: slot

38: Installation slot

40: Touch display panel

42: Notch

44: Spring

46: Steel Ball

48: bottom slot

Claims (9)

A touch knob device includes: a knob body with a groove at the bottom, the groove having an open end and a closed end opposite to each other, the closed end extending toward the open end in the groove, so that A convex shaft is formed in the groove; a fixing seat has a slot and a mounting slot at the top and bottom respectively, the convex shaft is rotatably inserted in the slot, and the fixing seat is accommodated in the In the groove; a base set in the mounting groove and exposed from the open end; and two first touch pads set on the bottom surface of the knob body, the base is located on the first touch pads Between the bottom of the base and the bottom surfaces of the first touch pads are attached to a touch display panel; wherein the side wall of the convex shaft is provided with a notch, one end of a spring is fixed in the notch, the A steel ball is fixed at the other end of the spring, the inner wall of the slot is a wavy surface, and the steel ball is fixed on the wavy surface. The touch knob device according to claim 1, wherein the knob body, the convex shaft and the first touch pads are all made of conductive material. The touch knob device according to claim 2, wherein the first touch pads are provided on the bottom surface of the knob body through conductive adhesive. The touch knob device according to claim 1, further comprising a second touch pad, the bottom of the base has a bottom groove, the second touch pad is fixed in the bottom groove, and the second touch The bottom surface of the pad is attached to the touch display panel. The touch knob device according to claim 4, wherein the bottom of the base is fixed on the touch display panel by double-sided tape. The touch knob device according to claim 4, further comprising a connecting rod and a fixing Plate, the fixing plate is located in the mounting groove and between the base and the fixing base, the connecting rod penetrates the base and is between the fixing plate and the second touch pad to connect the fixing Board and the second touch pad. The touch knob device according to claim 6, wherein the second touch pad, the connecting rod and the fixing plate are integrally formed. The touch knob device according to claim 7, wherein the second touch pad, the connecting rod and the fixing plate are made of conductive material. The touch knob device according to claim 4, wherein the second touch pad and the first touch pads are located on a straight line.

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