Touch key device and projection equipment

Abstract

The utility model provides a touch key device and projection equipment. The touch key device comprises a circuit board; the light-emitting assembly is arranged on the circuit board; the capacitive sensing layer is arranged on the circuit board; the light leakage preventing part is arranged on the peripheral sides of the circuit board, the light emitting assembly and the capacitive sensing layer; and the decorative cover is connected with the light leakage prevention piece, the decorative cover is arranged on the side, away from the circuit board, of the light emitting assembly, and the decorative cover is provided with a light-transmitting pattern. The touch key device can be attractive and functional at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to projection structure technical field especially, touch control button device and projection equipment. BACKGROUND

[0002] At present, projection equipment is widely used in people's daily life, becomes the main role of creating home theater. Some existing projectors in order to realize the simple and easy appearance of fuselage, only set up single entity button, but the function realized is single. Some other existing projectors then in order to take into account the function and set up a part of the remote control button into the entity button of fuselage, leading to the appearance of fuselage is not simple.

[0003] Therefore, how to take into account the appearance and functionality become the problem that needs to be solved of projection equipment. INVENTION CONTENTS

[0004] The application embodiment provides a kind of touch control button device and projection equipment, which can have the appearance and functionality.

[0005] The application embodiment provides a kind of touch control button device, comprising:

[0006] Circuit board

[0007] Light-emitting assembly, the light-emitting assembly is set on the circuit board

[0008] Capacitance induction layer, the capacitance induction layer is set on the circuit board

[0009] Light leakage prevention piece, the light leakage prevention piece is set on the circuit board, the light-emitting assembly and the capacitance induction layer side

[0010] Decorative cover, the decorative cover is connected with the light leakage prevention piece, the decorative cover is set on the side of the light-emitting assembly away from the circuit board, and the decorative cover is provided with light transmission pattern.

[0011] In some embodiments, the light leakage prevention piece includes first light shield frame and second light shield frame, the second light shield frame is set on the inner side of the first light shield frame, the first light shield frame and the second light shield frame are surrounded to form accommodating space, the circuit board, the light-emitting assembly, the capacitance induction layer are set in the accommodating space, the first light shield frame is set on the side of the circuit board, the capacitance induction layer, the second light shield frame is set on the edge of the light-emitting assembly.

[0012] In some embodiments, the light leakage prevention member further comprises a light shielding part connected with the second light shielding frame, the light shielding part is arranged between the light emitting assembly and the decorative cover, and a projection of the light shielding part on the light emitting assembly is surrounded by a projection of the light transmission pattern on the light emitting assembly.

[0013] In some embodiments, the light transmission pattern is a plurality of light transmission patterns, and the capacitive sensing layer comprises a plurality of capacitive sensing parts, each of the light transmission patterns is arranged corresponding to one of the capacitive sensing parts.

[0014] In some embodiments, the light emitting assembly comprises a plurality of light emitting units and a light guide part, a projection of the capacitive sensing layer on the circuit board does not coincide with a projection of the light emitting units on the circuit board, the light guide part is arranged on a side of the light emitting units away from the circuit board, and a projection of the light guide part on the circuit board covers the projection of the light emitting units on the circuit board.

[0015] In some embodiments, the capacitive sensing layer is arranged on the circuit board, the light emitting assembly comprises a plurality of light emitting units and a light guide part, the light guide part is arranged on a side of the capacitive sensing layer away from the circuit board, and the plurality of light emitting units are arranged on a side of the light guide part.

[0016] In some embodiments, the decorative cover comprises a cover body and an ink layer, the ink layer is arranged on the cover body, the ink layer is provided with a hollow area, and the hollow area forms the light transmission pattern.

[0017] In some embodiments, the decorative cover comprises a cover body and a resin layer, the resin layer is arranged on the cover body, the resin layer is provided with a hollow area, and the hollow area forms the light transmission pattern.

[0018] In some embodiments, the decorative cover body is provided with a first limiting part, the light leakage prevention member is provided with a second limiting part, the first limiting part is clamped with the second limiting part to fix the decorative cover body and the light leakage prevention member.

[0019] Embodiments of the present application further provide a projection device comprising the above-mentioned touch key device.

[0020] The touch key device and the projection device provided by the embodiments of the present application, the touch key device comprises a circuit board, a light-emitting component, a capacitive sensing layer, a light leakage prevention piece and a decorative cover, the circuit board, the light-emitting component and the capacitive sensing layer can be combined to form a hidden key arranged below the decorative cover, and the decorative cover is provided with a light-transmitting pattern. When a user touches a corresponding position of the capacitive sensing layer on the decorative cover, the light-emitting component can emit light correspondingly to light up the light-transmitting pattern; and after the user selectively presses the light-transmitting pattern, the capacitive sensing layer can identify the user operation and implement subsequent steps. When the user does not operate the projector, the light-transmitting pattern on the projector can be hidden, which is beneficial to keeping the appearance of the projector beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0022] Figure 1 The first structural schematic diagram of the touch key device provided by the embodiments of the present application.

[0023] Figure 2 The exploded schematic diagram of Figure 1

[0024] Figure 3 The structural schematic diagram of the light leakage prevention layer provided by the embodiments of the present application.

[0025] Figure 4 The exploded schematic diagram of Figure 3

[0026] Figure 5 The second structural schematic diagram of the touch key device provided by the embodiments of the present application.

[0027] Figure 6 The structural schematic diagram of the circuit board, the light-emitting unit and the capacitive sensing layer provided by the embodiments of the present application.

[0028] Figure 7 The third structural schematic diagram of the touch key device provided by the embodiments of the present application.

[0029] Figure 8 The fourth structural schematic diagram of the touch key device provided by the embodiments of the present application.

[0030] Figure 9 The fifth structural schematic diagram of the touch key device provided by the embodiments of the present application.

[0031] ​​Figure 10 A sixth structural schematic diagram of the touch key device provided in the embodiment of the present application is shown.

[0032] Figure 11 A seventh structural schematic diagram of the touch key device provided in the embodiment of the present application is shown. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] The embodiment of the present application provides a touch key device and a projection device, and the touch key device can have both beauty and function. The specific description is made below with reference to the drawings.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 A first structural schematic diagram of the touch key device provided in the embodiment of the present application is shown. Figure 2 is Figure 1 an exploded schematic diagram.

[0036] The embodiment of the present application provides a touch key device 100, which comprises a circuit board 10, a light-emitting assembly 20, a capacitive sensing layer 30, a light leakage prevention member 40 and a decorative cover 50. The light-emitting assembly 20 and the capacitive sensing layer 30 are arranged on the circuit board 10, the circuit board 10 can supply power to the light-emitting assembly 20 and the capacitive sensing layer 30, the decorative cover 50 is arranged on a side of the light-emitting assembly 20 away from the circuit board 10, and the decorative cover 50 is provided with a light-transmitting pattern 51.

[0037] The light-transmitting pattern 51 refers to a pattern with a certain light transmittance, that is, the light emitted by the light-emitting assembly 20 can be transmitted to the human eye through the light-transmitting pattern 51. The light-transmitting pattern 51 can be a pattern representing a function, such as a circle, a rectangle, a triangle or an irregular image. The light-transmitting pattern 51 can also be a character representing a function, such as a number, a word or a symbol. The light-transmitting pattern 51 is transmitted by the light emitted by the light-emitting assembly 20, and presents a key pattern, which enriches the display content. By arranging the light-transmitting pattern 51 on the decorative cover 50, the display effect of the touch key device 100 is more rich, and the problem of few keys and incomplete functions is avoided. The hollow pattern can be hidden in the process of not being used, which is beneficial to improving the aesthetic degree of the touch key device 100.

[0038] The light-transmitting pattern 51 corresponds to the capacitive sensing layer 30, which can sense that the corresponding light-transmitting pattern 51 on the decorative cover 50 is touched and generate a corresponding capacitive sensing signal, and then control the light-emitting component 20 to emit light.

[0039] The light leakage prevention member 40 is arranged at the periphery of the circuit board 10, the light-emitting component 20, and the capacitive sensing layer 30, and can prevent the light emitted by the light-emitting component 20 from spreading to the periphery, so as to avoid unnecessary light halo and affect the appearance of the touch key device 100 in use. The light leakage prevention member 40 can also fix the relative positions of the circuit board 10, the light-emitting component 20, and the capacitive sensing layer 30, so as to avoid misalignment among them and improve the reliability of the touch key device 100. The light leakage prevention member 40 can be fixed with the circuit board 10, the light-emitting component 20, and the capacitive sensing layer 30 on one hand, and can be fixed with the decorative cover 50 on the other hand, so as to play a role of connection and fixation.

[0040] Please refer to Figure 3 and Figure 4 , Figure 3 The structure diagram of the light leakage prevention layer provided by the embodiment of the present application is shown in Figure 4 , Figure 3 the explosion diagram.

[0041] The light leakage prevention member 40 includes a first light shielding frame 41 and a second light shielding frame 42. The second light shielding frame 42 is arranged at the inner side of the first light shielding frame 41, and the first light shielding frame 41 and the second light shielding frame 42 form a containing space 43. The circuit board 10, the light-emitting component 20, and the capacitive sensing layer 30 are arranged in the containing space 43. The first light shielding frame 41 is arranged at the periphery of the circuit board 10 and the capacitive sensing layer 30, and the second light shielding frame 42 is arranged at the edge of the light-emitting component 20.

[0042] It can be understood that the periphery of the circuit board 10, the light-emitting component 20, and the capacitive sensing layer 30 and the edge of the light-emitting component 20 are non-display areas, which can be partially wrapped and shielded by the light leakage prevention member 40, so as to prevent unnecessary light from entering the human eye and improve the aesthetic degree of the touch key device 100 in use.

[0043] Please refer to Figure 5 , Figure 5 The second structure diagram of the touch key device provided by the embodiment of the present application is shown in

[0044] The light leakage prevention member 40 further includes a light shielding part 44. The light shielding part 44 is connected with the second light shielding frame 42. The light shielding part 44 is arranged between the light-emitting component 20 and the decorative cover 50. The projection of the light shielding part 44 on the light-emitting component 20 is arranged around the projection of the light-transmitting pattern 51 on the light-emitting component 20.

[0045] The number of the light-transmitting patterns 51 can be multiple, and the number of the light-shielding portions 44 can be equal to or less than the number of the light-transmitting patterns 51. The light-shielding portions 44 can be selectively arranged around the light-transmitting patterns 51.

[0046] The light-shielding portions 44 are arranged around the light-transmitting patterns 51 to avoid crosstalk of the light illuminating the light-transmitting patterns 51. In the embodiments, the light-emitting assembly 20 can selectively continue to emit light, for example, when a power key is a frequently used key, the light-transmitting patterns 51 corresponding to the power key can continue to emit light. The light-shielding portions 44 can be arranged around the light-transmitting patterns 51 corresponding to the power key to block the light illuminating the light-transmitting patterns 51 corresponding to the power key from illuminating other light-transmitting patterns 51.

[0047] Please continue to refer to Figure 5 and Figure 6 , Figure 6 The structural schematic diagram of the circuit board, the light-emitting unit, and the capacitive sensing layer provided in the embodiments is shown in FIG. 6. When the light-transmitting patterns 51 are multiple, the capacitive sensing layer 30 includes multiple capacitive sensing members 31, and each light-transmitting pattern 51 is arranged corresponding to one capacitive sensing member 31. In this way, the area of the capacitive sensing member 31 is small, which avoids false control of the light-emitting assembly 20 and improves the accuracy of touch control.

[0048] In some embodiments, please continue to refer to Figure 6 and Figure 7 , Figure 7 The third structural schematic diagram of the touch key device provided in the embodiments is shown in FIG. 7. The light-emitting assembly 20 includes multiple light-emitting units 21, and the multiple light-emitting units 21 and the capacitive sensing layer 30 are arranged on the circuit board 10. The projection of the capacitive sensing layer 30 on the circuit board 10 does not overlap the projection of the light-emitting unit 21 on the circuit board 10.

[0049] The light emitted by the light-emitting unit 21 can be transmitted through the light-transmitting pattern 51, which is conducive to the user to identify the light-transmitting pattern 51. The capacitive sensing layer 30 and the light-emitting unit 21 are arranged alternately, which can avoid the capacitive sensing layer 30 from blocking the light emitted by the light-emitting unit 21.

[0050] The number of the light-transmitting patterns 51 can be multiple, and each light-emitting unit 21 is arranged corresponding to one light-transmitting pattern 51, which can evenly illuminate each light-transmitting pattern 51 and improve the uniformity of the light emitted from the light-transmitting pattern 51. The light-emitting unit 21 can include multiple LED light-emitting members, for example, the light-emitting unit 21 includes one LED light-emitting member or two LED light-emitting members in the embodiments.

[0051] In some cases, please refer to Figure 8 , Figure 8A fourth structure diagram of the touch key device is provided in the embodiments of the present application. The side of the circuit board 10 facing the light emitting assembly 20 is provided with a first recess 11, and the light emitting unit 21 is arranged in the first recess 11.

[0052] The number of the first recess 11 can be one or more. When the number of the first recess 11 is one, the plurality of light emitting units 21 are arranged in the one first recess 11. When the number of the first recess 11 is more than one, the number of the first recess 11 is equal to the number of the light emitting units 21, and each light emitting unit 21 is arranged in a recess. The first recess 11 can save space and protect the light emitting unit 21, so that the light emitting unit 21 is not damaged by pressure.

[0053] In some cases, please refer to Figure 6 and Figure 7 The light emitting assembly 20 further comprises a light guide 22 arranged on the side of the light emitting unit 21 away from the circuit board 10, the projection of the light guide 22 on the circuit board 10 covers the projection of the light emitting unit 21 on the circuit board 10, and the light guide 22 has a light homogenizing effect. The material of the light guide 22 can be silicone or polycarbonate.

[0054] In this case, please refer to Figure 9 , Figure 9 A fifth structure diagram of the touch key device is provided in the embodiments of the present application. The side of the light guide 22 close to the circuit board 10 is provided with a second recess 221, and the light emitting assembly 20 comprises a plurality of light emitting units 21, and the light emitting unit 21 is arranged in the second recess 221.

[0055] The number of the second recess 221 can be one or more. When the number of the second recess 221 is one, the plurality of light emitting units 21 are arranged in the one second recess 221. When the number of the second recess 221 is more than one, the number of the second recess 221 is equal to the number of the light emitting units 21, and each light emitting unit 21 is arranged in two recesses. The second recess 221 can save space and protect the light emitting unit 21, so that the light emitting unit 21 is not damaged by pressure.

[0056] In some embodiments, please refer to Figure 10 , Figure 10A sixth structure diagram of the touch key device is provided in the embodiments of the present application. The capacitive sensing layer 30 is arranged on the circuit board 10. The light emitting assembly 20 includes a plurality of light emitting units 21 and a light guide member 22. The light guide member 22 is arranged on the side of the capacitive sensing layer 30 away from the circuit board 10. The plurality of light emitting units 21 are arranged on the side of the light guide member 22. The light emitting units 21 emit light to the side of the light guide member 22. The light guide member 22 can illuminate the light transmission pattern 51 after light homogenization. It can be understood that, by arranging the light emitting units 21 on the side of the light guide member 22, the thickness of the touch key device 100 can be reduced, and the space occupied by the touch key device 100 can be reduced.

[0057] In some embodiments, please refer to Figure 2 The decorative cover 50 includes a cover body 52 and an ink layer 54. The ink layer 54 is arranged on the cover body 52, i.e., the ink layer 54 is arranged on the side of the cover body 52 close to the circuit board 10. The ink layer 54 is provided with a hollow area, and the hollow area forms the light transmission pattern 51. The process of forming the light transmission pattern 51 on the cover body 52 can be pad printing, or the ink layer 54 can be integrally sprayed with ink or printed with ink and then engraved with a laser to form.

[0058] In some other embodiments, the decorative cover 50 includes a cover body 52 and a resin layer. The resin layer is arranged on the cover body 52, i.e., the resin layer is arranged on the side of the cover body 52 close to the circuit board 10. The resin layer is provided with a hollow area, and the hollow area forms the light transmission pattern 51. The material of the resin layer can be PET.

[0059] In the above embodiments, the light transmission rate of the cover body 52 is less than or equal to 85%. The cover body 52 has a certain light transmission rate, which can transmit the light passing through the light transmission pattern 51. The thickness of the cover body 52 is 2 mm to 4 mm. The cover body 52 can protect the internal structure of the touch key device 100. The width of the light transmission pattern 51 is 6 mm to 10 mm, for example, 8 mm. The size of the light transmission pattern 51 is moderately selected to facilitate user viewing.

[0060] Please refer to Figure 11 , Figure 11 A seventh structure diagram of the touch key device is provided in the embodiments of the present application. The decorative cover 50 is provided with a first limiting member 53. The light leakage prevention member 40 is provided with a second limiting member. The first limiting member 53 is connected with the second limiting member to fix the decorative cover 50 and the light leakage prevention member 40. Through the fixation of the first limiting member 53 and the second limiting member, the relative positions of the decorative cover 50 and the light leakage prevention member 40 can be fixed. The relative positions of the circuit board 10, the light emitting assembly 20, the capacitive sensing layer 30, and the light leakage prevention member 40 are fixed. The relative positions of the circuit board 10, the light emitting assembly 20, the capacitive sensing layer 30, the light leakage prevention member 40, and the decorative cover 50 are fixed. The reliability of the touch key device 100 is improved.

[0061] The touch key device 100 further comprises a back shell connected with the decorative cover 50, and the back shell and the decorative cover 50 jointly form a containing space, and the circuit board 10, the light-emitting assembly 20, the capacitive sensing layer 30 and the light leakage prevention piece 40 are all arranged in the containing space, and the back shell and the decorative cover 50 jointly protect the structure in the containing space.

[0062] The back shell and the decorative cover 50 are clamped and fixed, and the back shell and the decorative cover 50 are fixed by a plurality of buckles, which is beneficial to the more close fixing of the back shell and the decorative cover 50.

[0063] The touch key device 100 further comprises a control chip arranged on the circuit board 10, and the control chip is electrically connected with the light-emitting assembly 20 and the capacitive sensing layer 30 respectively. When a user touches the light-transmitting pattern 51 in the decorative cover 50, the capacitive sensing layer 30 generates a capacitive sensing signal, and the control chip acquires the capacitive sensing signal to control the light-emitting assembly 20 to light up.

[0064] The embodiment of the present application further provides a projection device comprising the above touch key device 100. The projection device can comprise the touch key device 100 in the above embodiment, and thus has the technical effects corresponding to the touch key device 100 in the above embodiment, which will not be described herein.

[0065] The touch key device 100 and the projection device provided by the embodiment of the present application, the touch key device 100 comprises the circuit board 10, the light-emitting assembly 20, the capacitive sensing layer 30, the light leakage prevention piece 40 and the decorative cover 50, the circuit board 10, the light-emitting assembly 20 and the capacitive sensing layer 30 can constitute a hidden key arranged below the decorative cover 50, and the decorative cover 50 is provided with the light-transmitting pattern 51. When a user touches the corresponding position of the capacitive sensing layer 30 on the decorative cover 50, the light-emitting assembly 20 can correspondingly emit light to light up the light-transmitting pattern 51; and after the user selectively presses the light-transmitting pattern 51, the capacitive sensing layer 30 can recognize the user operation and implement subsequent steps. When the user does not operate the projector, the light-transmitting pattern 51 on the projector can be hidden, which is beneficial to keeping the appearance of the projector beautiful.

[0066] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0067] In the description of the present application, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more features.

[0068] The touch key device and the projection device provided by the embodiments of the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used for helping to understand the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will have changes, and the above description of the present application should not be understood as a limitation.

Claims

1. A touch-sensitive button device, characterized in that, include: Circuit board; A light-emitting component, wherein the light-emitting component is disposed on the circuit board; A capacitive sensing layer is disposed on the circuit board; A light-blocking component includes a first light-blocking frame and a second light-blocking frame. The second light-blocking frame is disposed inside the first light-blocking frame. The first light-blocking frame and the second light-blocking frame enclose a receiving space. The circuit board, the light-emitting component, and the capacitive sensing layer are disposed within the receiving space. The first light-blocking frame is disposed around the circuit board and the capacitive sensing layer. The second light-blocking frame is disposed at the edge of the light-emitting component. A decorative cover is connected to the light-proof component. The decorative cover is located on the side of the light-emitting component away from the circuit board and has a light-transmitting pattern.

2. The touch button device according to claim 1, characterized in that, The light-proof component also includes a light-shielding part, which is connected to the second light-shielding frame. The light-shielding part is disposed between the light-emitting component and the decorative cover, and the projection of the light-shielding part on the light-emitting component surrounds the projection of the light-transmitting pattern on the light-emitting component.

3. The touch button device according to claim 1 or 2, characterized in that, There are multiple light-transmitting patterns, and the capacitive sensing layer includes multiple capacitive sensing elements, with each light-transmitting pattern corresponding to one of the capacitive sensing elements.

4. The touch button device according to claim 1 or 2, characterized in that, The light-emitting component includes multiple light-emitting units and a light guide. The projection of the capacitive sensing layer on the circuit board does not coincide with the projection of the light-emitting unit on the circuit board. The light guide is disposed on the side of the light-emitting unit away from the circuit board, and the projection of the light guide on the circuit board covers the projection of the light-emitting unit on the circuit board.

5. The touch button device according to claim 1 or 2, characterized in that, The capacitive sensing layer is disposed on the circuit board, and the light-emitting component includes multiple light-emitting units and a light guide. The light guide is disposed on the side of the capacitive sensing layer away from the circuit board, and the multiple light-emitting units are disposed around the light guide.

6. The touch button device according to claim 1 or 2, characterized in that, The decorative cover includes a cover body and an ink layer. The ink layer is disposed on the cover body and has a hollowed-out area, which forms the light-transmitting pattern.

7. The touch button device according to claim 1 or 2, characterized in that, The decorative cover includes a cover body and a resin layer. The resin layer is disposed on the cover body and has a hollow area, which forms the light-transmitting pattern.

8. The touch button device according to claim 1 or 2, characterized in that, The decorative cover is provided with a first limiting member, and the light-proof component is provided with a second limiting member. The first limiting member and the second limiting member are engaged to fix the decorative cover and the light-proof component.

9. A projection device, characterized in that, Includes the touch button device according to any one of claims 1 to 8.

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