CN109871063B - Track Touch Sensing Module - Google Patents

Abstract

The invention provides a track touch sensing module, which comprises a touch plate, a light guide plate, a light-emitting element, a track touch sensing element and a light guide piece, wherein the touch plate is arranged on the light guide plate; the light guide plate is arranged on the lower side surface of the touch plate; the track touch sensing element is arranged on the lower side surface of the light guide plate; the light-emitting element is arranged below the track touch sensing element and is electrically connected with the track touch sensing element; the light guide part is arranged around the light guide plate, the track touch sensing element and the light emitting element; thereby achieving the functions of both the track panel and the keyboard.

Description

Track Touch Sensing Module

technical field

The invention relates to a trace touch sensing module.

Background technique

The track touch module is usually installed in the notebook computer to be used as a built-in mouse. When the user goes out with the notebook computer, if he forgets to bring an external mouse, he can use his finger to touch the touch panel of the track touch module. Swipe to achieve the effect of moving a cursor on a laptop screen.

The existing track touch module mainly includes a touch panel, a track touch sensing element and a circuit board; the touch panel cover is fixed on the track touch sensing element, and the track touch sensing element is electrically connected to the circuit board, and the circuit board is electrically connected to the notebook computer; when the finger touches and slides on the touchpad, the track touch sensing element converts the movement track of the finger on the touchpad into a displacement signal, and then transmits it to the notebook computer.

The existing track touch module can only be used as a built-in mouse to touch the moving cursor in the notebook computer, and the sensitivity of the operation and the convenience of use are not good, so it can only be used as a temporary alternative, so the track touch module is used in the notebook computer. The usage rate is not high, but it must occupy the keyboard space of the notebook computer; moreover, the notebook computer does not have an independent numeric keypad, and its numeric keys are shared with other letters or symbol keys, so the track touch module and the numeric keypad are integrated direction for improvement.

Contents of the invention

The main purpose of the present invention is to provide a trace touch sensing module.

In a preferred embodiment, the present invention provides a trace touch sensing module, including a touch panel, a light guide plate, at least one light emitting element, a trace touch sensing element and a light guide; the guide The light plate is installed on the lower side of the touch panel; the track touch sensing element is installed on the lower side of the light guide plate; the light emitting element is installed under the track touch sensing element and electrically connected to the track touch sensor element; the light guide is arranged outside the light guide plate, the track touch sensing element and the light emitting element; wherein the light source emitted by the light emitting element is provided to the light guide and the light guide plate in sequence A touch panel; thereby making the track touch sensing module have the functions of a track panel and a keyboard.

Preferably, it also includes a circuit board, the circuit board is installed under the track touch sensing element, and the circuit board is electrically connected to the track touch sensing element and the light emitting element respectively, and the light emitting element passes through the circuit The board is electrically connected with the track touch sensing element, and the light guide is located between the touch board and the circuit board.

Preferably, the light guide includes a bottom plate and a surrounding wall, the bottom plate is installed below the track touch sensing element and an opening is opened in the middle part, the surrounding wall extends upward from the outer edge of the bottom plate, the touch An accommodating space is formed between the touch panel, the base plate and the enclosure wall, and the accommodating space communicates with the opening. located at the opening.

Preferably, the wall surrounds the light guide plate and the track touch sensing element, the circuit board covers the opening, and the bottom plate is sandwiched between the circuit board and the track touch sensing element .

Preferably, the cross-sectional shape of the bottom plate and the wall is an "L" shape.

Preferably, the light emitting element and the base plate are arranged in parallel.

Preferably, it also includes a light source guiding element and at least one light-emitting unit, the light source guiding element surrounds the touch panel and the light guide, and the light-emitting unit is installed on the circuit corresponding to the light source guiding element The lower part of the board is electrically connected to the circuit board, and the light source emitted by the light emitting unit is transmitted through the light source guiding element.

Preferably, the light source guiding element includes an annular plate and a vertical wall, the central portion of the annular plate has a hole, the vertical wall extends upward from the outer edge of the annular plate, the vertical wall and The annular plate first forms an installation space, and the installation space communicates with the through hole, and the touch panel, the light guide plate, the track touch sensing element, the light guide member, the light emitting element and the circuit board are installed respectively. In the installation space, the light emitting unit is arranged in the opening corresponding to the annular plate.

Preferably, one end of the vertical wall adjacent to the touch panel is a light-transmitting part, and the light-transmitting part surrounds the outside of the touch panel, so that the light source emitted by the light-emitting unit can pass through the light-transmitting part.

Preferably, the vertical wall surrounds the touch panel, the light guide and the circuit board, the circuit board covers the opening, and the circuit board is sandwiched between the bottom plate and the annular plate between.

Preferably, the cross-sectional shape of the annular plate and the vertical wall is an "L" shape.

Preferably, the light-emitting unit and the annular plate are arranged in parallel; thereby achieving the effect of saving horizontal arrangement space.

Preferably, a transparent adhesive layer is coated between the light guide plate and the touch panel, and an adhesive layer is coated between the light guide plate and the track touch sensing element.

Preferably, the transparent adhesive layer is an adhesive added with a light-diffusing material, and the adhesive layer is an adhesive added with a reflective material.

The trace touch sensing module provided by the present invention enables the trace touch sensing module 100 to have the functions of a trace panel and a keyboard through the arrangement of the light guide plate, the light guide member, the light source guiding element, the light emitting element and the light emitting unit.

Description of drawings

FIG. 1 is a schematic diagram 1 of a track touch sensing module of the present invention.

FIG. 2 is a schematic diagram 2 of the track touch sensing module of the present invention.

FIG. 3 is a diagram 1 of the use state of the track touch sensing module of the present invention.

FIG. 4 is a diagram 2 of the use state of the track touch sensing module of the present invention.

FIG. 5 is the usage state diagram 3 of the track touch sensing module of the present invention.

Explanation of reference signs:

Track Touch Sensing Module

10 Touchpad

11 Translucent logo

20 light guide plate

30 track touch sensor

40 light emitting elements

50 circuit boards

60 light guide

61 bottom plate 611 opening

62 Wall 63 Storage space

70 light source guide element

71 ring plate 711 through opening

72 vertical wall 721 light-transmitting part

73 installation space

80 light units

91 Transparent adhesive layer 92 Adhesive layer

B host

S1 light source S2 light source

Detailed ways

Please refer to FIG. 1 and FIG. 2, which are schematic diagrams 1 and 2 of the track touch sensing module of the present invention; the track touch sensing module 100 is electrically connected to a host B, and host B can be a notebook computer or a desktop computer host Or electronic game equipment... etc., but not limited thereto; track touch sensing module 100 includes a touch panel 10, a light guide plate 20, a track touch sensing element 30, at least one light emitting element 40, a circuit board 50 , a light guide 60 , a light source guiding element 70 and at least one light emitting unit 80 .

The touch panel 10 is provided with a light-transmitting mark 11 (as shown in Figure 4), and the light-transmitting mark 11 (as shown in Figure 4) can be a numeric keypad icon, an alphabetic keypad icon or other button icons... etc., but not limited thereto; The light plate 20 is an element made of light-transmitting material. The light guide plate 20 is installed on the lower side of the touch panel 10; the track touch sensing element 30 is installed on the lower side of the light guide plate 20; the light emitting element 40 is installed on the track touch sensor The circuit board 60 is installed under the trace touch sensing element 30, and the circuit board 50 is electrically connected to the trace touch sensing element 30, the light emitting element 40 and the host B respectively, so that the light emitting element 40 passes through the circuit board 50 is electrically connected with the track touch sensing element 30; the light emitting element 40 can be a single-color light-emitting diode, full-color light-emitting diode, single-color LED light or full-color LED light.

The light guide 60 is located between the touch panel 10 and the circuit board 50. The light guide 60 includes a bottom plate 61 and a surrounding wall 62. The surrounding wall 62 extends upward from the outer edge of the bottom plate 61. The touch panel 10 corresponds to the cover of the surrounding wall 62. At one end of the surrounding wall 62 away from the base plate 61, an accommodating space 63 is formed between the touch panel 10, the base plate 61 and the surrounding wall 62, and the light guide plate 20 and the track touch sensing element 30 are installed in the accommodating space 63, so that The wall 62 of the light guide 60 is arranged outside the light guide plate 20 and the track touch sensor 30, and the bottom plate 61 is installed under the track touch sensor 30 and has an opening 611 in the middle, and the opening 611 communicates with the capacitor. Set the space 63, the circuit board 50 covers the opening 611 and connects the bottom plate 61, so that the bottom plate 61 is sandwiched between the circuit board 50 and the track touch sensing element 30, and the light emitting element 40 is arranged in the opening 611 corresponding to the bottom plate 61, so that The light emitting element 40 is located between the track touch sensing element 30, the base plate 61 and the circuit board 50, and the light emitting element 40 and the base plate 61 are arranged in parallel, and the light source S1 emitted by the light emitting element 40 can be introduced from the inner wall surface of the base plate 61 Inside the bottom plate 61, the light source S1 is provided to the touch panel 10 through the bottom plate 61 of the light guide 60, the wall 62 of the light guide 60, and the light guide plate 20 in sequence; the cross-sectional shape of the bottom plate 61 and the wall 62 is an “L”. shape.

The light source guide element 70 includes an annular plate 71 and a vertical wall 72, the middle part of the annular plate 71 has a hole 711, the vertical wall 72 extends upward from the outer edge of the annular plate 71, the vertical wall 72 and the ring The shape plate 71 first forms an installation space 73, and the opening 711 communicates with the installation space 73, and the touch panel 10, the light guide plate 20, the track touch sensing element 30, the light guide 60, the light emitting element 40 and the circuit board 50 are respectively installed. In the installation space 73, the vertical wall 72 is arranged around the touch panel 10, the light guide 20 and the outside of the circuit board 50, the circuit board 50 covers the opening 711 and is connected to the ring plate 71, and the circuit board 50 is sandwiched Between the bottom plate 61 and the ring plate 71; the light emitting unit 80 corresponding to the light source guide element 70 is installed under the circuit board 50 and electrically connected to the circuit board 50, and the light emitting unit 80 is arranged in the through hole 711 corresponding to the ring plate 71 , the light emitting unit 80 and the annular plate 71 are arranged in parallel; one end of the vertical wall 72 of the light source guiding element 70 adjacent to the touch plate 10 is a light-transmitting portion 721, and the light source S2 emitted by the light emitting unit 80 passes through the annular plate 71 The inner wall surface of the ring-shaped plate 71 is introduced into the ring-shaped plate 71, and then the light source S2 is sequentially guided by the ring-shaped plate 71 and the vertical wall 72 and penetrates through the light-transmitting part 721; the cross-sectional shape of the ring-shaped plate 71 and the vertical wall 72 is a " L" shape; the light-emitting unit 80 is a single-color light-emitting diode, a full-color light-emitting diode, a single-color LED light or a full-color LED light.

Please refer to FIG. 3 and FIG. 4 , which are the use state FIG. 1 and the use state FIG. 2 of the track touch sensor module 100 of the present invention. Switch the track touch sensor 30 to the track touch mode, so that the user can use the finger to rub and slide the touchpad 10, when the track touch sensor 30 senses the movement track of the finger on the touchpad 10 , the touch sensing element 30 will convert the moving track into a track signal and transmit it to the host B; in addition, when the track touch sensing element 30 is switched to the track touch mode, the host B will drive the light emitting unit 80 to emit light, The light source S2 emitted by the light-emitting unit 80 passes through the base plate 71 and the vertical wall 72 in sequence, and then passes through the light-transmitting portion 721 of the vertical wall 72, and forms a light-emitting circle around the outside of the touch panel 10 for easy use. Or identify the track touch sensor module 100 is currently in the track touch mode and also has a decorative effect, and when the track touch sensor module 100 is used in a dark place, it can also pass through the light source S2 through the light-transmitting part 721 Visible light is provided for the user, so that the user can smoothly use the track touch sensing module 100 in a dark place.

Furthermore, when the touch keyboard function of the trace touch sensing module 100 is to be used, the trace touch sensing element 30 will be switched to the touch keyboard mode through the host B, and at this time the host B will drive the light emitting element 40 to emit light. The light source S1 of the light-emitting element 40 is transmitted to the light guide plate 20 through the guidance of the base plate 61 and the surrounding wall 62 in sequence, and the light source S1 emitted by the light-emitting element 40 is emitted from the upper side of the light guide plate 20 under the guidance of the light guide plate 20. And provided to the touch panel 10, finally the light source S1 emitted by the light-emitting element 40 is emitted from the light-transmitting mark 11 of the touch panel 10, so as to form a keyboard icon or button icon on the touch panel 10, and track the touch sensing element. When 30 senses that the user's finger touches the keyboard icon or key icon formed on the touch panel 10, the track touch sensing element 30 will convert the position information touched by the finger into a position signal and transmit it to the host B. Through the arrangement of the light guide 60, the light source guiding element 70, the light emitting element 40 and the light emitting unit 80, the track touch sensor module 100 can be used not only as a track panel but also as a keyboard or other buttons; in addition, in When the track touch sensing module 100 is used in a dark place, the light source S1 transmitted from the light-transmitting sign 11 can also provide the user with visible light, so that the user can smoothly use the track touch sensing module 100 in a dark place. .

In addition, since the touch panel 10, the light guide plate 20, the track touch sensing element 30, the light emitting element 40, the circuit board 50, the light guide element 60, the light source guiding element 70 and the light emitting unit 80 are arranged vertically, it is possible to save The effect of horizontal configuration space.

Please refer to Fig. 5, which is Fig. 3 of the use state of the track touch sensing module of the present invention, wherein a transparent adhesive layer 91 can be coated between the light guide plate 20 and the touch panel 10, and the transparent adhesive layer 91 is for adding a light diffusing An adhesive for the material, the adhesive can be glue, but not limited thereto, so that the touch panel 10 can be firmly fixed on the upper side of the light guide plate 20, so that the touch panel 10 can be fixed on the light guide plate 20; An adhesive layer 92 is coated between the light guide plate 20 and the track touch sensing element 30, so that the light guide plate 20 is fixed on the track touch sensing element 30, and the adhesive layer 92 is an adhesive with a reflective material added thereto; therefore, When the light source S1 emitted by the light-emitting element 40 is transmitted into the light guide plate 20 through the light guide member 60, the adhesive layer 92 can reflect the light source S1 transmitted from the lower side of the light guide plate 20 back into the light guide plate 20, so as to improve the light source S1 from the light guide plate 20. The lumens of the light source S1 from the upper side can increase the luminous intensity of the light guide plate 20; The light source S1 emitted from the side can be evenly provided to the touch panel 10 to achieve an even light effect.

According to the above description, it can be seen that, firstly, through the arrangement of the light guide plate 20, the light guide member 60, the light source guiding element 70, the light emitting element 40 and the light emitting unit 80, the track touch sensor module 100 can be used as both a track panel and a keyboard. Function; second, since the touch panel 10, the light guide plate 20, the track touch sensing element 30, the light emitting element 40, the circuit board 50, the light guide element 60, the light source guiding element 70 and the light emitting unit 80 are arranged vertically, Therefore, the effect of saving the horizontal arrangement space can be achieved.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the claims of the present invention. Therefore, all other equivalent changes or modifications that do not deviate from the disclosed spirit of the present invention should be included in the scope of this case. within the claims.

Claims (9)

1. A trajectory touch sensing module, comprising:

a touch pad;

a light guide plate installed on a lower side surface of the touch panel;

a track touch sensing element mounted on the lower side of the light guide plate;

at least one light-emitting element which is arranged below the track touch sensing element and is electrically connected with the track touch sensing element;

a light guide member surrounding the light guide plate, the track touch sensing element and the light emitting element, wherein the light guide member includes a bottom plate and an enclosure, the bottom plate is mounted below the track touch sensing element, an opening is formed in the middle of the bottom plate, the enclosure extends upwards from the outer edge of the bottom plate, an accommodating space is formed among the touch plate, the bottom plate and the enclosure, the accommodating space is communicated with the opening, the light guide plate and the track touch sensing element are mounted in the accommodating space, and the light emitting element is arranged in the opening corresponding to the bottom plate; the light source emitted by the light-emitting element sequentially passes through the light guide part and the light guide plate and is provided for the touch panel;

the circuit board is arranged below the track touch sensing element and covers the opening, the circuit board is electrically connected with the track touch sensing element and the light-emitting element respectively, the light-emitting element is arranged on the circuit board and is electrically connected with the track touch sensing element, and the light guide element is positioned between the touch pad and the circuit board; and

the light source guide element is arranged outside the touch panel and the light guide piece in a surrounding way, the light emitting unit is arranged below the circuit board corresponding to the light source guide element and is electrically connected with the circuit board, and a light source emitted by the light emitting unit is transmitted out through the light source guide element; the light source guiding element comprises an annular plate and a vertical wall, wherein a through hole is formed in the middle of the annular plate, the vertical wall extends upwards from the outer edge of the annular plate, an installation space is formed between the vertical wall and the annular plate and is communicated with the through hole, the touch panel, the light guide plate, the track touch sensing element, the light guide piece, the light emitting element and the circuit board are respectively installed in the installation space, and the light emitting unit is arranged in the through hole corresponding to the annular plate; one end part of the vertical wall, which is close to the touch plate, is a light-transmitting part, the light-transmitting part is arranged outside the touch plate in a surrounding way, so that a light source emitted by the light-emitting unit is transmitted out of the light-transmitting part, and a light-emitting ring is formed around the outside of the touch plate.

2. The module of claim 1, wherein the wall surrounds the light guide plate and the trace touch sensing element, and the bottom plate is sandwiched between the circuit board and the trace touch sensing element.

3. The touch sensing module of claim 1, wherein the cross-sectional shapes of the base and the perimeter wall are "L" shaped.

4. The touch sensing module of claim 1, wherein the light emitting device and the base are disposed in parallel.

5. The trajectory touch sensing module of claim 1, wherein the vertical wall is disposed around the touch pad, the light guide member and the circuit board, the circuit board covers the through opening, and the circuit board is sandwiched between the bottom plate and the annular plate.

6. The trajectory touch sensing module of claim 1, wherein the cross-sectional shapes of the annular plate and the standing wall are "L" shaped.

7. The trajectory touch sensing module of claim 1, wherein the light emitting unit and the annular plate are disposed in parallel.

8. The trajectory touch sensing module according to claim 1, wherein a transparent adhesive layer is coated between the light guide plate and the touch pad, and an adhesive layer is coated between the light guide plate and the trajectory touch sensing device.

9. The trajectory touch sensing module of claim 8, wherein the transparent adhesive layer is an adhesive with a light diffusing material added thereto, and the adhesive layer is an adhesive with a reflective material added thereto.

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