remote control

Abstract

The application discloses a kind of remote controllers, it is related to remote controller technical field.Remote controller includes: circuit board, the side wall of one side of circuit board has at least one backlight light source;Thin film key layer, thin film key layer is set to the side wall of one side of circuit board, thin film key layer has at least one through hole, through hole is set to one-to-one with backlight light source, to make backlight light source wear corresponding through hole, and thin film key layer includes multiple key parts, and at least one light guide point is set to the side wall of one side of key part away from circuit board;Rubber composite layer, rubber composite layer is set to the side of thin film key layer away from circuit board, rubber composite layer has at least one light-transmitting part, light-transmitting part is one-to-one with key part and each other is set to opposite;Wherein, the distribution density of light guide point of key part and the light transmittance of light-transmitting part are negatively correlated relationship.This application can improve the uniformity of key brightness.

Description

Technical Field

[0001] This invention relates to the field of remote control technology, and more particularly to a remote control. Background Technology

[0002] In related technologies, remote controls, as essential household items, can be used with home appliances such as televisions and air conditioners. Since these appliances are typically used at night, remote controls also feature backlighting.

[0003] However, the backlight uniformity of current remote controls is not high when the backlight is turned on. Summary of the Invention

[0004] The main objective of this invention is to provide a remote control that addresses the technical problem of low backlight uniformity in existing remote controls.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a remote control, comprising:

[0006] A circuit board, wherein one sidewall of the circuit board has at least one backlight source;

[0007] A thin film key layer is disposed on one side wall of the circuit board. The thin film key layer has at least one through hole, and the through hole is disposed in a one-to-one correspondence with the backlight source so that the backlight source passes through the corresponding through hole. The thin film key layer includes multiple key parts, and at least one light guide point is disposed on the side wall of the key part away from the circuit board.

[0008] A rubber composite layer is disposed on the side of the thin film key layer away from the circuit board. The rubber composite layer has at least one light-transmitting part, and the light-transmitting part corresponds one-to-one with the key part and is disposed opposite to each other.

[0009] The distribution density of the light guide points on the button section is negatively correlated with the light transmittance of the light-transmitting section.

[0010] In one possible embodiment of this application, the rubber composite layer includes at least one background portion and at least one button marking portion, wherein at least one background portion corresponds one-to-one with at least one button marking portion, the background portion surrounds the corresponding button marking portion, and the background portion is made of an opaque material, while the button marking portion is made of a translucent or semi-translucent material, so that the button marking portion forms the translucent part;

[0011] The shapes of the button marking portions corresponding to different button sections are different.

[0012] In one possible embodiment of this application, the rubber composite layer comprises:

[0013] A rubber layer, wherein the rubber layer is disposed on the side of the thin-film key layer opposite to the circuit layer, and the rubber layer is made of a light-transmitting or semi-light-transmitting material; and

[0014] A topcoat layer is disposed on the side of the rubber layer opposite to the membrane button layer, and the topcoat layer includes the background portion and the button marking portion.

[0015] In one possible embodiment of this application, the background portion and the button marking portion are different colors.

[0016] In one possible embodiment of this application, it further includes:

[0017] A light guide film is disposed on the side wall of the thin-film key layer away from the circuit board;

[0018] The backlight source passes through the corresponding through hole and extends into the light guide film, so that at least a portion of the backlight source is positioned directly opposite the light guide film.

[0019] In one possible embodiment of this application, the plurality of button portions include a plurality of button groups, each button group includes at least one button portion, and the button groups are correspondingly disposed with at least one of the backlight sources.

[0020] In one possible embodiment of this application, the backlight source is an LED lamp, and the light emission angle of the LED lamp is α, where α satisfies: 100≤α≤130°.

[0021] In one possible embodiment of this application, it further includes:

[0022] An ambient light sensor is used to collect real-time lighting information of the environment in which the remote control is located;

[0023] A pose detection component is used to collect the real-time pose information of the remote controller;

[0024] The control unit is connected to the backlight source, the ambient light sensor and the pose detection component, respectively, and is used to acquire the real-time illumination information and the real-time pose information. Based on the real-time pose information, it determines whether the remote control is in use, and when the remote control is in use and the real-time illumination information is less than a first preset threshold, it controls the backlight source to turn on.

[0025] In one possible embodiment of this application, the pose detection component is an accelerometer, which is used to collect real-time acceleration information of the remote controller;

[0026] The control unit is specifically used to determine whether the real-time acceleration information is greater than a second preset threshold; if it is greater than the second preset threshold, the remote control is determined to be in use; if it is less than or equal to the second preset threshold, the remote control is determined to be out of use.

[0027] In one possible embodiment of this application, the control unit is further configured to determine whether a user's key operation is received within a preset time after the backlight source is turned on; if no key operation is received, the control unit controls the backlight source to turn off.

[0028] This invention provides a remote control. The remote control's membrane button layer includes multiple button portions, each button portion having at least one light guide point on its sidewall facing away from the circuit board. A rubber composite layer is disposed on the side of the membrane button layer facing away from the circuit board, and the rubber composite layer has at least one light-transmitting portion. The light-transmitting portion corresponds one-to-one with the button portions and is arranged facing each other. The distribution density of the light guide points on the button portions is negatively correlated with the light transmittance of the light-transmitting portion.

[0029] As is easily understood, in existing technologies, different buttons on a remote control provide backlight emission channels through different light-transmitting parts. However, the transmittance of the light-transmitting parts corresponding to each button is difficult to keep consistent, resulting in uneven brightness across the buttons. This application addresses the problem of uneven brightness caused by inconsistent transmittance of the light-transmitting parts corresponding to each button on the remote control by adding light guide points to the thin-film button layer. The distribution density of these light guide points is negatively correlated with the transmittance of the light-transmitting parts, thereby making the brightness of all buttons on the remote control more uniform and improving the backlight uniformity of the remote control. Attached Figure Description

[0030] Figure 1 This is an exploded view of the remote control of the present invention;

[0031] Figure 2 This is a schematic diagram of the light guide point structure of the remote control of the present invention;

[0032] Figure 3 This is a schematic diagram showing the positions of the backlight source and light guide film of the remote control of the present invention;

[0033] Figure 4 This is a schematic diagram of the button group partitioning of the remote control of the present invention;

[0034] Figure 5 for Figure 4 Enlarged schematic diagram of section I;

[0035] Figure 6 for Figure 5 Partial cross-sectional schematic diagram;

[0036] Figure 7This is a schematic diagram of the module of the remote control of the present invention.

[0037]

[0038]

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] This application provides a remote control.

[0042] This remote control can be paired with home appliances such as televisions or air conditioners to enable remote control of these appliances.

[0043] See Figures 1 to 3 In this embodiment, the remote control includes: a circuit board 10, a membrane button layer 20, and a rubber composite layer 30.

[0044] The circuit board 10 has at least one backlight source 101 on one sidewall; the thin-film button layer 20 is disposed on one sidewall of the circuit board 10, and the thin-film button layer 20 has at least one through hole 201, which is arranged one-to-one with the backlight source 101 so that the backlight source 101 passes through the corresponding through hole 201. The thin-film button layer 20 includes a plurality of button portions 202, and each button portion 202 has at least one light guide point 203 on the sidewall away from the circuit board 10; the rubber composite layer 30 is disposed on the side of the thin-film button layer 20 away from the circuit board 10, and the rubber composite layer 30 has at least one light-transmitting portion, which is arranged one-to-one with the button portion 202 and facing each other; wherein the distribution density of the light guide points 203 of the button portion 202 is negatively correlated with the light transmittance of the light-transmitting portion.

[0045] Specifically, the remote control includes a housing, which can be formed by an upper housing and a lower housing, forming an installation chamber inside the housing. The upper housing has multiple button holes communicating with the installation chamber. These button holes are arranged in a preset button layout array. The installation chamber includes a circuit board 10, a thin-film button layer 20, and a rubber composite layer 30, stacked sequentially. The circuit board 10 is a PCBA (Printed Circuit Board Assembly). It is understood that the circuit board 10 is fixed to the installation chamber by support pillars within the housing and corresponding screws or other fasteners. The circuit board 10 has corresponding circuit structures printed on it; therefore, a corresponding backlight source 101 is mounted on one side wall of the circuit board 10. The backlight source 101 is connected to the circuit structure on the circuit board 10, and can be turned on or off under the drive of the circuit structure. Since the button holes are located in the upper housing in this embodiment, the backlight source 101 is located on the upper surface of the circuit board 10.

[0046] It is worth mentioning that in this embodiment, the backlight source 101 can be an LED lamp, and the following description will take LED lamps as an example for further explanation.

[0047] The membrane button layer 20, or Dome sheet, is a thin PET sheet containing metal springs, used as a switch on circuit boards 10 such as PCBs or FPCs. Specifically, the membrane button layer 20 is laid on the upper surface of the circuit board 10. The metal springs on the membrane button are located on conductive parts of the PCBA board (mostly above the gold fingers on the circuit board 10). When pressed, the center point of the spring is recessed, contacting the circuit on the PCB, thus forming a circuit. Each metal spring is also the button portion 202, and each button portion 202 has at least one light guide point 203 on its upper surface. When light travels along the light path to the light guide point 203, reflection or refraction occurs at the light guide point 203, thus propagating the light propagating inside the mounting cavity to the outside of the housing. That is, the light guide point 203 can be a reflective point printed on the button portion 202, or a refractive point protruding from the PET sheet; there is no limitation here.

[0048] A rubber composite layer 30, also known as a rubber layer, is disposed on the upper surface of the membrane button layer 20. Multiple button protrusions are formed on the upper surface of the rubber composite layer 30. Each button protrusion extends from a corresponding button hole to the outside of the housing, facilitating button operation by the user. To achieve the backlight function of the remote control, the rubber composite layer 30 has at least one light-transmitting portion, which corresponds one-to-one with the button portion 202 and is positioned directly opposite each other. Specifically, the light-transmitting portion and the button portion 202 are positioned directly opposite each other, allowing the light path guided by the light guide point 203 on the upper surface of the button portion 202 to be discharged through the light-transmitting portion.

[0049] The distribution density of the light guide dots 203 on the button portion 202 is negatively correlated with the light transmittance of the light-transmitting portion. Specifically, if the light transmittance of the light-transmitting portion of the button portion 202 is high, the distribution density of the light guide dots 203 on the corresponding button portion 202 is low, and the distribution of the light guide dots 203 is relatively sparse. Conversely, if the light transmittance of the light-transmitting portion of the button portion 202 is low, the distribution density of the light guide dots 203 on the corresponding button portion 202 is high, and the distribution of the light guide dots 203 is relatively dense.

[0050] In one embodiment, the distribution density of the light guide dots 203 of the button portion 202 is linearly negatively correlated with the light transmittance of the light-transmitting portion. Alternatively, in another example, see [reference needed]. Figure 2 (c) If the light transmittance of the light-transmitting portion is within a first preset threshold range, then a first preset number of light guide points 203 are distributed on the upper surface of the button portion 202, and the light guide points 203 are evenly distributed among each other. (See reference) Figure 2 (b) If the light transmittance of the light-transmitting portion is within a second preset threshold range, then a second preset number of light guide points 203 are distributed on the upper surface of the button portion 202, and the light guide points 203 are evenly distributed among each other. See reference. Figure 2 (c) If the light transmittance of the light-transmitting part is within the third preset threshold range, then the upper surface of the button part 202 is provided with a third preset number of light guide points 203, which are evenly distributed among each other. Wherein, the lower limit of the first preset threshold range is greater than the upper limit of the second preset threshold range, and the lower limit of the second preset threshold range is greater than the upper limit of the third preset threshold range. In this case, the first preset number, the second preset number, and the third preset number decrease sequentially.

[0051] It is easy to understand that in existing technologies, different buttons on a remote control provide light emission channels for the backlight source 101 through different light-transmitting parts. However, the transmittance of the light-transmitting parts corresponding to each button 202 is difficult to keep consistent. This could be due to differences in materials or different light-transmitting areas. Therefore, the brightness of the buttons is not uniform. This application addresses the problem of uneven brightness caused by inconsistent transmittance of the light-transmitting parts corresponding to each button 202 on the remote control by adding light guide points 203 to the thin-film button layer 20. The distribution density of the light guide points 203 is negatively correlated with the transmittance of the light-transmitting parts, thereby making the brightness of all buttons on the remote control more uniform, thus improving the backlight uniformity of the remote control. In this embodiment, the uniformity can reach approximately 70%, making the difference virtually imperceptible to the human eye.

[0052] In one possible embodiment of this application, the rubber composite layer 30 includes at least one background portion 302 and at least one button marking portion 303. The at least one background portion 302 corresponds one-to-one with the at least one button marking portion 303. The background portion 302 surrounds the corresponding button marking portion 303. The background portion 302 is made of an opaque material, and the button marking portion 303 is made of a light-transmitting material or a semi-light-transmitting material, so that the button marking portion 303 forms a light-transmitting part. The button marking portion 303 corresponding to different button portions 202 has a different shape.

[0053] See Figure 4 and Figure 5 Specifically, to facilitate user operation at night—that is, to enable users to quickly identify the control information represented by each button in a dark environment—the button label portion 303 can be made of a light-transmitting or semi-light-transmitting material, while the background portion 302 surrounding the button label portion 303 can be made of an opaque material. In a dark environment, only the button label portion is ultimately displayed, thus making the backlight display more prominent and improving the user experience.

[0054] If the button label 303 corresponds to a button label "1", then "1" can be made of a light-transmitting material, while the entire oval button corresponding to "1", i.e., the background part 302, is made of an opaque material. In this case, in a dark environment, the shape of the backlight display is "1".

[0055] Understandably, since the light-transmitting portions of different buttons correspond to their button markings, and the shapes of the button marking portions of different buttons are obviously different, resulting in different light-transmitting areas, the light transmittance of the light-transmitting portions of different buttons is different. In this embodiment, by adding light guide points 203 to the thin-film button layer 20, and the distribution density of the light guide points 203 being negatively correlated with the light transmittance of the light-transmitting portion, the brightness of all buttons on the remote control tends to be consistent, thereby providing uniform backlighting for the remote control.

[0056] See Figures 4 to 6 In one possible embodiment of this application, the rubber composite layer 30 includes: a rubber layer 301 and a topcoat layer.

[0057] The rubber layer 301 is disposed on the side of the membrane key layer 20 away from the circuit layer, and the rubber layer 301 is made of a light-transmitting material or a semi-light-transmitting material; the topcoat layer is disposed on the side of the rubber layer 301 away from the membrane key layer 20, and the topcoat layer includes the background portion 302 and the key marking portion 303.

[0058] Specifically, in this embodiment, the substrate of the rubber layer 301 is a transparent, light-guiding rubber material. Its upper surface is coated with an opaque material to form a background portion 302, and a transparent material or a sheet-like transparent material to form a button marking portion 303. At this time, the light beam provided by the backlight source 101, guided by the light guide point 203, passes sequentially through the rubber layer 301 and the button marking portion 303 before propagating to the outside of the remote control.

[0059] In this embodiment, the rubber layer 301 is constructed as a transparent light-guiding rubber material, and a light-transmitting part is formed by spraying on it, which can reduce production costs.

[0060] In one possible embodiment of this application, the background portion 302 and the button marking portion 303 are different colors.

[0061] Specifically, the substrate of the rubber layer 301 is a transparent, light-guiding rubber material. Its upper surface is coated with black paint to form the background portion 302, and coated with light-transmitting white paint to form the button marking portion 303. Because the white button marking portion 303 has a certain degree of transmittance, it can be made to glow.

[0062] In this embodiment, the background portion 302 and the button marking portion 303 on the button surface are formed by spraying different colored paint materials, which can further reduce production costs.

[0063] See Figure 3In one possible embodiment of this application, it further includes: a light guide film disposed on the side wall of the thin film button layer 20 away from the circuit board 10; wherein, the backlight source 101 passes through the corresponding through hole 201 and extends to the light guide film, so that at least a portion of the backlight source 101 is disposed facing the light guide film.

[0064] Specifically, the upper surface of the button film layer has a light guide film. At this time, the light emitted by the backlight source 101 enters the light guide film directly from the through hole 201 and propagates within the light guide film to facilitate light propagation and improve light propagation efficiency.

[0065] In one possible embodiment of this application, the plurality of button sections 202 include a plurality of button groups, each button group including at least one button section 202, and the button group is correspondingly disposed with at least one backlight source 101.

[0066] See Figure 1 and Figure 4 In this embodiment, the remote control has seven backlight sources 101 distributed in different positions. Correspondingly, the multiple button sections 202 on the remote control can be divided into nine areas: A, B, C, BC, D, E, DE, F, and G. Backlight source 101A corresponds to area A, backlight source 101B corresponds to areas B and BC, backlight source 101C corresponds to areas C and BC, backlight source 101D corresponds to areas D and DE, backlight source 101E corresponds to areas E and DE, backlight source 101F corresponds to area F, and backlight source 101G corresponds to area G.

[0067] In this embodiment, after grouping multiple button sections 202, light is provided to the corresponding button groups through different backlight sources 101, which can further make the overall uniformity of the multiple button sections 202 more consistent.

[0068] To prevent the light beams emitted by the backlight source 101 from interfering with each other and affecting the uniformity of button brightness, in one possible embodiment of this application, the backlight source 101 has a side-emitting surface, which is arranged facing the corresponding button group. Specifically, the backlight source 101 is an LED, and the light emission angle of the LED is α, where α satisfies: 100 ≤ α ≤ 130°. For example, α is 130°.

[0069] See Figure 7In one possible embodiment of this application, it further includes: an ambient light sensor, which is used to collect real-time illumination information of the environment in which the remote control is located; a pose detection component, which is used to collect real-time pose information of the remote control; and a control unit, which is connected to the backlight source 101, the ambient light sensor and the pose detection component respectively, and is used to acquire real-time illumination information and real-time pose information, determine whether the remote control is in use based on the real-time pose information, and control the backlight source 101 to turn on when the remote control is in use and the real-time illumination information is less than a first preset threshold.

[0070] It's easy to understand that most existing backlit remote controls are triggered when the user presses a button, regardless of whether it's day or night. This triggering method obviously leads to excessive battery consumption.

[0071] In this embodiment, an ambient light sensor is used to collect real-time lighting information of the environment where the remote control is located, and a pose detection component is used to collect real-time pose information of the remote control. The remote control is moved based on the real-time pose information. When the remote control is in use and the real-time lighting information is less than a first preset threshold, the backlight source 101 is turned on.

[0072] Therefore, in this embodiment, the triggering rules for backlight control include two dimensions: light intensity and pose judgment. This can more accurately determine whether the user actually needs to use the backlight function, thereby reducing the power consumption of the remote control.

[0073] In one possible embodiment of this application, the pose detection component is an accelerometer, which is used to collect real-time acceleration information of the remote controller; the control unit is specifically used to determine whether the real-time acceleration information is greater than a second preset threshold; if it is greater than the second preset threshold, it is determined that the remote controller is in use; if it is less than or equal to the second preset threshold, it is determined that the remote controller is not in use.

[0074] Specifically, in this embodiment, the real-time acceleration information detected by the accelerometer can more accurately determine whether the remote control is being used by the user.

[0075] In one possible embodiment of this application, the control unit is further configured to determine whether a user's key operation is received within a preset time after the backlight source 101 is turned on; if no key operation is received, the control unit controls the backlight source 101 to turn off.

[0076] The specific preset duration can be 5 seconds. Therefore, in this embodiment, after the backlight source 101 is turned on, if the user does not operate within the preset duration, the button backlight function is turned off, waiting for the next trigger, thereby further reducing power consumption.

[0077] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A remote control, characterized in that, include: A circuit board, wherein one sidewall of the circuit board has at least one backlight source; A thin film key layer is disposed on one side wall of the circuit board. The thin film key layer has at least one through hole, and the through hole is disposed in a one-to-one correspondence with the backlight source so that the backlight source passes through the corresponding through hole. The thin film key layer includes multiple key parts, and at least one light guide point is disposed on the side wall of the key part away from the circuit board. A rubber composite layer is disposed on the side of the thin film key layer away from the circuit board. The rubber composite layer has at least one light-transmitting part, and the light-transmitting part corresponds one-to-one with the key part and is disposed opposite to each other. The distribution density of the light guide points in the button section is negatively correlated with the light transmittance of the light-transmitting section. The rubber composite layer includes at least one button marking portion, which is made of a light-transmitting or semi-light-transmitting material so that the button marking portion forms the light-transmitting part; The shapes of the button marking portions corresponding to different button portions are different, and the light transmittance of the light-transmitting portions corresponding to different button portions is different.

2. The remote control according to claim 1, characterized in that, The rubber composite layer includes at least one background portion, and at least one background portion corresponds one-to-one with at least one button marking portion. The background portion surrounds the corresponding button marking portion, and the background portion is made of an opaque material.

3. The remote control according to claim 2, characterized in that, The rubber composite layer includes: A rubber layer, wherein the rubber layer is disposed on the side of the thin-film keypad layer opposite to the circuit board, and the rubber layer is made of a light-transmitting or semi-light-transmitting material; and A topcoat layer is disposed on the side of the rubber layer opposite to the membrane button layer, and the topcoat layer includes the background portion and the button marking portion.

4. The remote control according to claim 3, characterized in that, The background portion and the button label portion are different colors.

5. The remote control according to claim 1, characterized in that, Also includes: A light guide film is disposed on the side wall of the thin-film key layer away from the circuit board; The backlight source passes through the corresponding through hole and extends into the light guide film, so that at least a portion of the backlight source is positioned directly opposite the light guide film.

6. The remote control according to claim 1, characterized in that, The plurality of button units include a plurality of button groups, each button group including at least one button area group, and the button area group is correspondingly arranged with at least one of the backlight sources.

7. The remote control according to claim 6, characterized in that, The backlight source has a side-emitting surface, which is oriented toward the corresponding button group.

8. The remote control according to any one of claims 1 to 7, characterized in that, Also includes: An ambient light sensor is used to collect real-time lighting information of the environment in which the remote control is located; A pose detection component is used to collect the real-time pose information of the remote controller; The control unit is connected to the backlight source, the ambient light sensor and the pose detection component, respectively, and is used to acquire the real-time illumination information and the real-time pose information. Based on the real-time pose information, it determines whether the remote control is in use, and when the remote control is in use and the real-time illumination information is less than a first preset threshold, it controls the backlight source to turn on.

9. The remote control according to claim 8, characterized in that, The pose detection component is an accelerometer, which is used to collect real-time acceleration information of the remote controller; The control unit is specifically used to determine whether the real-time acceleration information is greater than a second preset threshold; if it is greater than the second preset threshold, the remote control is determined to be in use; if it is less than or equal to the second preset threshold, the remote control is determined to be out of use.

10. The remote control according to claim 8, characterized in that, The control unit is also used to determine whether a user's key press is received within a preset time after the backlight source is turned on. If no key press is received, the backlight source is turned off.

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