Composite touch module

Abstract

A composite touch module is arranged in the frame of a display, which has a circuit board with a laminated structure. Different functions of a first touch sensor and a second touch sensor are arranged in different circuit layers, and the first touch sensor faces the front surface of the display, and the second touch sensor is close to the bottom surface of the display. In this way, the user can touch and operate the touch sensors with different functions from the front surface and the bottom surface respectively. At the same time, the arrangement of the auxiliary sensing component is used to determine whether the user approaches from the front surface or the bottom surface, and then trigger the first touch sensor or the second touch sensor at the corresponding position. Therefore, the present application can arrange two groups of touch sensors in a limited area, and automatically detect the user's trigger position, so that the user does not need additional steps and can intuitively operate.

Description

TECHNICAL FIELD

[0001] The present application is a composite touch module, in particular, a touch module with multiple touch functions. BACKGROUND

[0002] With the advancement of technology, the application of touch sensing is also more and more widely, in the prior art, there has been the use of touch sensing as a control button on the frame of the display to replace the physical button. In terms of the control button of the frame of the display, basic control buttons are generally needed, such as volume control, multimedia function switching, etc., and more advanced and less commonly used control buttons may include input signal switching, etc., but different control buttons need to be set corresponding touch units. In the trend of pursuing narrow frame, how to set the required number of touch sensing buttons in the limited area of the frame of the display becomes the research and development direction in this field. SUMMARY

[0003] Therefore, the present application provides a composite touch module to provide two groups of touch sensing buttons in a limited area.

[0004] To achieve the above-mentioned application purpose, the technical means adopted by the present application is to provide a composite touch module, which comprises:

[0005] A circuit board having a first surface and a first side edge, the first surface and the first side edge being adjacent to each other, the circuit board comprising a multi-layer structure arranged in layers, comprising a first circuit layer and a second circuit layer, the first circuit layer constituting the first surface, and the second circuit layer being stacked below the first circuit layer;

[0006] A control unit arranged on the circuit board;

[0007] A plurality of first touch sensors arranged on the first circuit layer and electrically connected to the control unit;

[0008] A plurality of second touch sensors arranged on the second circuit layer and electrically connected to the control unit, the second touch sensors being close to or flush with the first side edge; and

[0009] An auxiliary sensing component arranged on the first circuit layer and electrically connected to the control unit;

[0010] Among them, the first touch sensor, the second touch sensor and the auxiliary sensing unit generate a sensing amount corresponding to the approach of a touch object;

[0011] When the first touch sensor and the second touch sensor are both detected, the control unit determines whether the sensed amount received by the auxiliary sensing component satisfies a first condition; if yes, the control unit executes the function corresponding to the first touch sensor; if no, the control unit executes the function corresponding to the second touch sensor.

[0012] The present application has the advantage that different groups of touch sensors are arranged by a multi-layer structure, and the abutting first surface and first side edge of the circuit board are used to control different groups of touch sensors when a user contacts the first surface and the first side edge, and the auxiliary sensing component is used to automatically determine the position currently approached or contacted by the user, and then trigger the function of the group of touch sensors corresponding to the position, so that the effect of arranging two groups of touch sensing buttons in a limited area can be achieved, and the user can intuitively operate different groups of touch sensors without performing an additional switching procedure through the automatic determination of the auxiliary sensing component.

[0013] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments, but is not limited to the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a block diagram of the present application;

[0015] Figure 2 is a top view of the first circuit layer of the first embodiment of the present application;

[0016] Figure 3 is a side view of the cutting surface line 3-3 of the display of the present application; Figure 2

[0017] Figure 4 is a side view of the cutting surface line 4-4 of the display of the present application; Figure 2

[0018] Figure 5 is a top view of the second circuit layer of the present application;

[0019] Figure 6 is a front view of the display of the present application;

[0020] Figure 7 is a bottom view of the display of the present application;

[0021] Figure 8 is a top view of the first circuit layer of the second embodiment of the present application;

[0022] Figure 9A is an enlarged view of the lower left corner of the display of the present application in a first state; Figure 6 is an enlarged view of the lower left corner of the display of the present application in a first state;​​

[0023] Figure 9B For Figure 6 enlarged schematic view of the lower left corner of the display in the second state.

[0024] Wherein, the reference signs:

[0025] 10: circuit board

[0026] 101: first surface

[0027] 102: first side edge

[0028] 103: second side edge

[0029] 11: first circuit layer

[0030] 12: second circuit layer

[0031] 13: third circuit layer

[0032] 14: fourth circuit layer

[0033] 20: control unit

[0034] 30: first touch sensor

[0035] 40: second touch sensor

[0036] 50, 50A: auxiliary sensing assembly

[0037] 51, 51A: first auxiliary sensor

[0038] 52A: second auxiliary sensor

[0039] 60: first light emitting element

[0040] 61: first pattern group

[0041] 70: second light emitting element

[0042] 71: second pattern group

[0043] 80: display

[0044] 81: frame

[0045] 82: front surface

[0046] 83: bottom surface

[0047] 84: connection port DETAILED DESCRIPTION

[0048] The structural principle and working principle of the present application will be described in detail below in combination with the drawings:

[0049] The following further describes the technical means adopted by the present application to achieve the predetermined inventive objectives, with reference to the accompanying drawings and embodiments of the present application. The drawings are simplified for the purpose of illustration only and are used to illustrate the structure or method invention of the present application by describing the relationship between the elements and components of the present application. Therefore, the elements shown in the drawings are not presented in actual quantity, actual shape, actual size, and actual proportion. The size or size proportion has been exaggerated or simplified to provide better illustration. The actual quantity, actual shape, or actual size proportion has been selectively designed and configured. The detailed element layout can be more complex.

[0050] Referring to Figures 1 to 3 The present application includes a circuit board 10, a control unit 20, a plurality of first touch sensors 30, a plurality of second touch sensors 40, and an auxiliary sensing component 50, and can further include a first light emitting element 60 and a second light emitting element 70. The first touch sensor 30, the second touch sensor 40, the auxiliary sensing component 50, the first light emitting element 60, and the second light emitting element 70 are electrically connected to the control unit 20. In an embodiment, the first touch sensor 30, the second touch sensor 40, and the auxiliary sensing component 50 detect a touch object by capacitive sensing, that is, when a touch object is close to or in contact with the first touch sensor 30, the second touch sensor 40, and the auxiliary sensing component 50, the first touch sensor 30, the second touch sensor 40, and the auxiliary sensing component 50 will generate a corresponding capacitive sensing amount due to the distance between the touch object and them.

[0051] Referring to Figure 2 and 3 The circuit board 10 has a first surface 101 and a first side edge 102 adjacent to the first surface 101. The circuit board 10 includes a multi-layer structure arranged in layers, at least including a first circuit layer 11, a second circuit layer 12, and a third circuit layer 13, wherein the second circuit layer 12 is located between the first circuit layer 11 and the third circuit layer 13, and the first circuit layer 11 constitutes the first surface 101. The circuit board 10 can further include a fourth circuit layer 14 located between the second circuit layer 12 and the third circuit layer 13. The fourth circuit layer 14 can be used for wiring or setting a shielding layer. A dielectric layer is provided between the first, second, third, and fourth circuit layers 11, 12, 13, and 14, respectively. In an embodiment, referring to Figures 3 to 5 The control unit 20 is provided on the third circuit layer 13, the first touch sensor 30 and the auxiliary sensing component 50 are provided on the first circuit layer 11, the second touch sensor 40 is provided on the second circuit layer 12, and the second touch sensor 40 is close to or flush with the first side edge 102.

[0052] In application of the present application, referring to Figure 6 andFigure 7 cooperating Figure 1 , Figure 2 and Figure 5 As shown in FIG. 1, the circuit board 10 is installed in a frame 81 of a display 80. A first surface 101 of the circuit board 10 corresponds to a front surface 82 of the display 80, and a first side edge 102 of the circuit board 10 corresponds to a bottom surface 83 of the display 80. A touch object 90 controls the first touch sensor 30 on the front surface 82 of the display 80 (corresponding to the first surface 101 of the circuit board 10) to actuate different functions by touching different first touch sensors 30. The touch object 90 controls the second touch sensor 40 on the bottom surface 83 of the display 80 (corresponding to the first side edge 102 of the circuit board 10) to actuate different functions by touching different second touch sensors 40. The auxiliary sensing component 50 is used to assist in determining whether the touch object 90 (e.g., a user's finger) is approaching the front surface 82 or the bottom surface 83 of the display 80, and thus determining whether the user desires to trigger a function corresponding to the first touch sensor 30 or a function corresponding to the second touch sensor 40.

[0053] When the touch object 90 approaches the front surface 82 of the display 80, although the first touch sensor 30 and the second touch sensor 40 can both generate a change in the sensing amount, the touch object 90 can also cause the auxiliary sensing component 50 located on the first surface 101 to generate a change in the sensing amount, so that the sensing amount of the auxiliary sensing component 50 satisfies a first condition (e.g., greater than a first threshold value), thereby causing the control unit 20 to determine that the touch object 90 intends to trigger the function of the first touch sensor 30, and then determining which first touch sensor 30 the position touched by the touch object 90 corresponds to according to the sensing amount of each first touch sensor 30, thereby actuating the function of the first touch sensor 30, for example, determining that the position touched by the touch object 90 is the first touch sensor 30 with the largest sensing amount, and executing the function corresponding to the first touch sensor 30 with the largest sensing amount. When the touch object 90 intends to touch the bottom surface 83 of the display 80, although the first touch sensor 30 and the second touch sensor 40 can both generate a change in the sensing amount, the touch object 90 is far away from the auxiliary sensing component 50 located on the first surface 101, so that the auxiliary sensing component 50 cannot generate a change in the sensing amount or the generated sensing amount cannot satisfy the first condition, thereby causing the control unit 20 to determine that the touch object 90 intends to trigger the function of the second touch sensor 40, and then determining which second touch sensor 40 the position touched by the touch object 90 corresponds to according to the sensing amount of each second touch sensor 40, thereby actuating the function of the second touch sensor 40, for example, determining that the position touched by the touch object 90 is the second touch sensor 40 with the largest sensing amount, and executing the function corresponding to the second touch sensor 40 with the largest sensing amount.

[0054] Therefore, the present application can be provided with at least two groups of touch sensors 30, 40 on the circuit board 10 arranged in layers, and the display 80 has a three-dimensional structure (front surface 82 and bottom surface 83), and the first and second touch sensors 30, 40 are arranged at different positions (first surface 101 and close to the first side edge), so that the user can control different touch buttons from different directions, and the position approached by the user is identified by the auxiliary sensing component 50, thereby actuating the corresponding first touch sensor 30 or second touch sensor 40 corresponding to the position touched by the user. Therefore, the present application can arrange two groups of first and second touch sensors 30, 40 with different functions in a limited frame 81 area, and the corresponding first touch sensor 30 or second touch sensor 40 is automatically actuated by the judgment of the auxiliary sensing component 50, so that the user does not need to perform an additional switching procedure, thereby maintaining the convenience of use.

[0055] In one embodiment (e.g.) Figure 2 As shown, the circuit board 10 has a second side edge 103, which is disposed on the opposite side of the first side edge 102 and is adjacent to the first surface 101. The auxiliary sensing component 50 includes a first auxiliary sensor 51, which is disposed near the second side edge 103 and away from the first side edge 102. The sensing amount generated by the first auxiliary sensor 51 can be compared with a preset first threshold value. When the touch object 90 approaches the front 82 of the display 80, since the first auxiliary sensor 51 is disposed on the first circuit layer 11 of the circuit board 10 (i.e., constituting the first surface 101), the sensing amount generated by the first auxiliary sensor 51 is greater than the first threshold value. To satisfy the first condition, the control unit 20 executes the function of the first touch sensor 30. When the touch object 90 approaches from the bottom surface 83 of the display 80, that is, from the first side edge 102, it is difficult for the first auxiliary sensor 51, which is far away, to generate a change in the sensing amount. Therefore, the sensing amount generated by the first auxiliary sensor 51 will be less than the first threshold value and is considered not to satisfy the first condition. Thus, the control unit 20 executes the function of the second touch sensor 40. Therefore, by setting the first auxiliary sensor 51 close to the second side edge 103 and far away from the first side edge 102 (corresponding to the bottom surface 83 of the display 80), the accuracy of judging whether the touch object 90 approaches from the front surface 82 or the bottom surface 83 is improved.

[0056] In another embodiment (such as) Figure 8The auxiliary sensing assembly 50A shown in FIG. 1 1 comprises the first auxiliary sensor 51 A and the second auxiliary sensor 52A, the first touch sensor 30 is located between the first auxiliary sensor 51 A and the second auxiliary sensor 52A, the second auxiliary sensor 52A is arranged close to the first side edge 102 and away from the second side edge 103, the first auxiliary sensor 51 A and the second auxiliary sensor 52A can be long strips and are arranged parallel to the second side edge 103 and the first side edge 102 respectively to increase the contactable area, and the lengths of the first auxiliary sensor 51 A and the second auxiliary sensor 52A can cover the distribution range of the first touch sensor 30. The first and second auxiliary sensors 51 A, 52A are used to improve the accuracy of determining whether the touch object 90 approaches from the front surface 82 or the bottom surface 83 of the display 80. When the touch object 90 approaches from the front surface of the display 80, the first and second auxiliary sensors 51 A, 52A will both produce a change in the sensing amount, at this time the sensing amount of the first auxiliary sensor 51 A is greater than the first threshold value, which is considered to satisfy the first condition, thereby triggering the function of the first touch sensor 30, and since the touch object 90 approaches from the front surface 82 of the display 80, the distance between the touch object 90 and the first and second auxiliary sensors 51 A, 52A on the first surface 101 is not much different, and the sensing amounts of the first and second auxiliary sensors 51 A, 52A can also be compared, if the difference between the sensing amounts of the first and second auxiliary sensors 51 A, 52A is less than a second threshold value, it means that the difference between the sensing amounts of the first and second auxiliary sensors 51 A, 52A is not much different, then it is determined that the touch object 90 is more likely to approach from the front surface, so at this time it is determined that the first condition is satisfied and the function of the first touch sensor 30 is triggered, which meets the requirements. When the touch object 90 approaches from the bottom surface 83 of the display 80, i.e. approaches from the first side edge 102, the distance between the first auxiliary sensor 51 A close to the second side edge 103 is farther, so at this time the sensing amount of the first auxiliary sensor 51 A is necessarily smaller than the first threshold value, which is considered not to satisfy the first condition, so the control unit 20 executes the function of the second touch sensor 40, and since the touch object 90 approaches from the bottom surface 83 of the display 80 (corresponding to the first side edge 102 of the circuit board 10), it is closer to the second auxiliary sensor 52A close to the first side edge 102, so at this time the sensing amount of the second auxiliary sensor 52A is necessarily greater than the sensing amount of the first auxiliary sensor 51 A, so the difference between the sensing amounts of the first and second auxiliary sensors 51 A, 52A is greater than the preset second threshold value, which is considered not to satisfy the first condition, so the control unit 20 executes the function of the second touch sensor 40. Therefore, by arranging the first and second auxiliary sensors 52A close to the second side edge 103 and the first side edge 102 respectively, it is more clear to determine whether the touch object 90 approaches from the front surface 82 or the bottom surface 83 (corresponding to the first side edge 102) of the display 80.

[0057] In one embodiment (as shown in Figure 3 In one embodiment, each of the first touch sensors 30 corresponds to one of the second touch sensors 40, and each of the second touch sensors 40 corresponds to one of the first touch sensors 30, i.e., the first touch sensors 30 and the second touch sensors 40 are arranged in a one-to-one manner, and the corresponding first touch sensor 30 and the second touch sensor 40 are electrically connected through the conductive via hole 111, and the first touch sensor 30 or the second touch sensor 40 is electrically connected to the control unit 20 through a wire, so as to reduce the number of wires electrically connected to the control unit 20, thereby reducing the number of pins used by the control unit 20, and the remaining pins can be used to connect other required electronic components. Although the sensing signals of the corresponding first and second touch sensors 30, 40 are transmitted to the control unit 20 through this electrical connection, since only the first touch sensor 30 or the second touch sensor 40 is triggered each time, the first and second touch sensors 30, 40 are not triggered at the same time, and therefore, when the control unit 20 receives the sensing signals of the first and second touch sensors 30, 40 of each group, the sensing results of the auxiliary sensing assembly 50 can be used to determine whether the received sensing signals are used to trigger the first touch sensor 30 or the second touch sensor 40.

[0058] As shown in Figure 1 and Figure 6 When the control unit 20 executes the function corresponding to the first touch sensor 30, the control unit 20 simultaneously actuates the first light emitting element 60 to emit light; when the control unit 20 executes the function corresponding to the second touch sensor 40, the control unit 20 simultaneously actuates the second light emitting element 70 to emit light. In one embodiment, as shown in Figure 1 and Figure 9A When the first light emitting element 60 emits light, a first pattern group 61 is presented on the frame 81 of the display 80, and the pattern presented by the first pattern group 61 corresponds to the functions of each first touch sensor 30, such as conference function, answering phone, volume control, etc. As shown in Figure 1 , Figure 9B and Figure 7As shown, when the second light emitting element 70 emits light, a second pattern group 71 is presented on the frame 81 of the display 80. The pattern presented by the second pattern group 71 corresponds to the function of each second touch sensor 40. For example, the display 80 has different connection ports 84 at the back for connecting different audio / video input sources. The second touch sensor 40 is used to switch the picture displayed by the display 80 and the sound from which audio / video input source. The first pattern group 61 and the second pattern group 71 can be arranged in a staggered manner, such as up-down or left-right staggered, to correspond to the first light emitting element 60 and the second light emitting element 70 arranged at different positions.

[0059] Of course, the present application can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application. However, these corresponding changes and modifications shall all belong to the protection scope of the claims of the present application.

Claims

1. A composite touch module, characterized in that, The application relates to a circuit board, a control unit, a plurality of first touch sensors, a plurality of second touch sensors, and an auxiliary sensing component. The circuit board has a first surface and a first side edge adjacent to the first surface, and comprises a multi-layer structure including a first circuit layer and a second circuit layer, wherein the first circuit layer constitutes the first surface, and the second circuit layer is stacked below the first circuit layer. The control unit is disposed on the circuit board. The first touch sensors are disposed on the first circuit layer and electrically connected to the control unit. The second touch sensors are disposed on the second circuit layer and electrically connected to the control unit, and are close to or flush with the first side edge. The auxiliary sensing component is disposed on the first circuit layer and electrically connected to the control unit. When at least part of the first touch sensors and at least part of the second touch sensors detect sensing quantities, the control unit determines whether the sensing quantity received by the auxiliary sensing component satisfies a first condition. If yes, the control unit executes a function corresponding to the first touch sensors; if no, the control unit executes a function corresponding to the second touch sensors. The circuit board has a second side edge, and the first side edge and the second side edge are disposed on opposite sides and are adjacent to the first surface.

2. The composite touch module of claim 1, wherein, The auxiliary sensing component comprises a first auxiliary sensor, which is disposed close to the second side edge and away from the first side edge. The control unit determines whether the sensing quantity received by the auxiliary sensing component satisfies a first condition, which means determining whether the sensing quantity received by the first auxiliary sensor is greater than a first threshold value. The auxiliary sensing component further comprises a second auxiliary sensor, the first touch sensors are disposed between the first auxiliary sensor and the second auxiliary sensor, and the second auxiliary sensor is disposed close to the first side edge and away from the second side edge.

3. The in-cell touch module of claim 2, wherein, The control unit determines whether the sensing quantity received by the auxiliary sensing component satisfies a first condition, which means determining whether the difference between the sensing quantity of the first auxiliary sensor and the sensing quantity of the second auxiliary sensor is less than a second threshold value.

4. The hybrid touch module of claim 2, wherein, The control unit determines whether the sensing quantity received by the auxiliary sensing component satisfies a first condition, which means determining whether the sensing quantity of the first auxiliary sensor is greater than a first threshold value, and whether the difference between the sensing quantity of the first auxiliary sensor and the sensing quantity of the second auxiliary sensor is less than a second threshold value. 5.The composite touch module of claim 4, wherein, The first auxiliary sensor is in a strip shape and is parallel to the second side edge. 6.The composite touch module according to claim 4, wherein, The first auxiliary sensor and the second auxiliary sensor are in a strip shape and are parallel to the first side edge and the second side edge, respectively. 7.The composite touch module according to claim 2 or 3, wherein, ​ 8. The in-cell touch module according to any one of claims 4 to 6, wherein, ​ 9. The in-cell touch module according to any one of claims 1 to 6, wherein, Wherein each of the first touch sensors corresponds to one of the second touch sensors, each of the second touch sensors corresponds to one of the first touch sensors, the corresponding first touch sensor and the second touch sensor are electrically connected, the first touch sensor is electrically connected with the control unit through the second touch sensor, or the second touch sensor is electrically connected with the control unit through the first touch sensor.

10. The in-cell touch module according to any one of claims 1 to 6, wherein, Further comprising a first light emitting element and a second light emitting element, the first light emitting element and the second light emitting element are electrically connected with the control unit, when the control unit executes the function corresponding to the first touch sensor, the control unit simultaneously actuates the first light emitting element to emit light; when the control unit executes the function corresponding to the second touch sensor, the control unit simultaneously actuates the second light emitting element to emit light.

11. The in-cell touch module according to any one of claims 1 to 6, wherein, Wherein when the control unit executes the function corresponding to the first touch sensor, the function corresponding to the first touch sensor with the largest sensing amount is executed; when the control unit executes the function corresponding to the second touch sensor, the function corresponding to the second touch sensor with the largest sensing amount is executed.

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