AI keyboard backlight module of micro-lens light guide structure

Abstract

The utility model provides an AI keyboard backlight module with a micro-lens light guide structure, belongs to the technical field of keyboard backlight, and aims to solve the problems that in the prior art, when an AI keyboard is used, the light guide characteristic of a light guide film cannot be fully utilized, light energy conduction of an LED lamp cannot be maximized, the AI keyboard cannot emit uniform and bright light, and user experience is affected. Comprising a shading film, a light guide film, a reflecting film and an FPC circuit board which are sequentially arranged from top to bottom. A plurality of LED lamps are arranged on the FPC circuit board, a light-transmitting key position light-emitting unit is arranged on the shading film, a plurality of light guide micro lenses are arranged on the light guide film in an array mode, the light guide micro lenses correspond to the key position light-emitting unit, lamp holes corresponding to the LED lamps are formed in the reflecting film and the light guide film, the LED lamps are embedded in the lamp holes, and the reflecting film and the light guide film are arranged on the FPC circuit board. And a plurality of light guide micro lenses are also arranged on the inner side wall of the lamp hole in the light guide film in an array manner.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboard backlight, and more specifically, particularly relates to an AI keyboard backlight module with a microlens light guide structure. Background Art

[0002] With the rapid development of science and technology, artificial intelligence (AI) has penetrated into every aspect of our lives. Keyboards, as a tool for interaction between people and computers, have also been integrated with AI technology. By embedding AI keys in the keyboard layout of personal computers (PCs), users will be able to call out Microsoft's AI (artificial intelligence) assistant with one click, which has become a new trend in keyboard development.

[0003] The existing keyboard AI key is placed next to the right Alt key on the keyboard to replace the Windows key, and AI auxiliary keys that are different from other key positions are set in other key areas. In order to facilitate users to quickly identify, the keyboard AI key and AI auxiliary key have conspicuous colors or can emit colorful light. The keyboard backlight module serves as the light-emitting element of the AI ​​keyboard. It mainly emits light through LED lights, which are laid under the AI ​​backlight keyboard keys, or side-emitting light is used to lay the LED lights on the side of the LED lights. The light-guiding properties of the light-guiding film are used to conduct the LED light energy. How to make full use of the light-guiding properties of the light-guiding film to maximize the light energy conduction of the LED lamp and make the AI ​​keyboard emit brighter and more uniform colorful light is an urgent problem to be solved in the industry.

[0004] Therefore, in view of this, research and improvement are conducted on the existing structure and deficiencies, and an AI keyboard backlight module with a microlens light-guiding structure is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the utility model provides an AI keyboard backlight module with a microlens light-guiding structure to solve the problem that the existing AI keyboard cannot fully utilize the light-guiding properties of the light-guiding film when in use and cannot maximize the light energy conduction of the LED lamp, resulting in the AI ​​keyboard being unable to emit uniform and brighter light, affecting the user experience.

[0006] The purpose and effect of the AI ​​keyboard backlight module with a microlens light guide structure of the utility model are achieved by the following specific technical means:

[0007] An AI keyboard backlight module with a microlens light-guiding structure comprises a light-shielding film, a light-guiding film, a reflective film, and an FPC circuit board, which are arranged in sequence from top to bottom; a plurality of LED lights are arranged on the FPC circuit board, a light-transmitting key position light-emitting unit is arranged on the light-shielding film, a plurality of light-guiding microlenses are arranged in an array on the light-guiding film, the light-guiding microlenses correspond to the key position light-emitting units, lamp holes corresponding to the LED lights are opened on the reflective film and the light-guiding film, the LED lights are embedded in the lamp holes, and a plurality of light-guiding microlenses are also arranged in an array on the inner side wall of the lamp hole on the light-guiding film.

[0008] Furthermore, the shading film is printed with shading black ink in areas other than the key position light emitting units, and the key position light emitting units include AI key light emitting units, AI auxiliary key light emitting units, and other key position light emitting units. There are multiple AI auxiliary key light emitting units, and the AI ​​key light emitting units and the AI ​​auxiliary light emitting units are both printed with color ink.

[0009] Furthermore, the bottom surface of the reflective film is printed with black ink, and the top surface is printed with white ink.

[0010] Furthermore, a light-shielding ink layer is printed on the FPC circuit board and is located around the LED lamp.

[0011] Furthermore, a plurality of heat dissipation holes are correspondingly provided on the light-shielding film, the light-guiding film and the reflective film, and black light-shielding ink is provided around the walls of the heat dissipation holes.

[0012] Furthermore, the areas of the light-shielding film and the reflective film are larger than the area of ​​the light-guiding film, the light-guiding film is located between the light-shielding film and the reflective film, and the edges of the light-shielding film and the reflective film seal and cover the light-guiding film.

[0013] Compared with the prior art, the utility model has the following beneficial effects.

[0014] By setting an array of light-guiding microlenses on the light-guiding film, the light-guiding microlenses can diffuse and evenly distribute the light emitted by the LED lamp, and shape the light beam to focus the light. The light-guiding microlenses are set corresponding to the key position light-emitting units, so that the light passing through the key position light-emitting units is more uniform and brighter. In addition, by setting an array of light-guiding microlenses on the inner side walls of the lamp holes in the light-guiding film, the light energy of the LED lamp embedded in the lamp holes can be transmitted faster and more effectively in the light-guiding film, so that the light energy is evenly distributed to various parts of the light-guiding film, so that each key position light-emitting unit of the backlight module emits uniform and bright light, illuminating the illuminated characters on the keyboard keycaps, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of an AI keyboard backlight module with a microlens light guide structure of the utility model.

[0016] Figure 2 It is a top plan schematic diagram of the light guide film of the utility model.

[0017] Figure 3 It is a three-dimensional schematic diagram of the light-guiding film of the utility model.

[0018] Figure 4 yes Figure 3 A local enlarged schematic diagram of the A direction.

[0019] Figure 5 It is a plane schematic diagram of the utility model light-shielding film.

[0020] Figure 6 It is a plane schematic diagram of the reflective film of the utility model.

[0021] Figure 7 It is a plane schematic diagram of the FPC circuit board of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 1. Light-shielding film; 2. Light-guiding film; 3. Reflective film; 4. FPC circuit board; 5. LED lamp; 6. Key light output unit; 7. Light-guiding microlens; 8. Lamp hole; 9. Light-shielding black ink; 10. AI key light output unit; 11. AI auxiliary key light output unit; 12. Heat dissipation hole; 13. Light-shielding ink layer. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example:

[0028] As attached Figure 1 To Attachment Figure 7 As shown:

[0029] The utility model provides an AI keyboard backlight module with a microlens light-guiding structure, comprising a shading film 1, a light-guiding film 2, a reflecting film 3, and an FPC circuit board 4, which are arranged in sequence from top to bottom; a plurality of LED lamps 5 are arranged on the FPC circuit board 4, a light-transmitting key position light-emitting unit 6 is arranged on the shading film 1, the key position light-emitting unit 6 corresponds to the position of the key cap on the keyboard, and illuminates the luminous characters on the key cap, a plurality of light-guiding microlenses 7 are arranged in an array on the light-guiding film 2, the light-guiding microlenses 7 can diffuse and evenly distribute the light emitted by the LED lamp 5, so that the light energy is evenly diverged on the light-guiding film 2, the light-guiding microlenses 7 correspond to the key position light-emitting unit 6, the light-guiding microlenses 7 shape the light beam to focus the light, so that the light emitted by the corresponding key position light-emitting unit 6 is brighter, a lamp hole 8 corresponding to the LED lamp 5 is opened on the reflecting film 3 and the light-guiding film 2, and the LED lamp 5 is embedded in the lamp hole 8, Embedding the LED lamp 5 in the lamp hole 8 can reduce the spatial thickness of the LED lamp 5 that causes the backlight module to be too thick, making the AI ​​keyboard backlight module thinner, which is in line with the lightweight design of the keyboard backlight module. The inner wall of the lamp hole 8 on the light guide film 2 is also arrayed with a number of light-guiding micro-lenses 7. The light-guiding micro-lenses 7 are arranged on the inner wall of the lamp hole 8 on the light guide film 2. The light is evenly diffused by the light-guiding micro-lenses 7, so that the light can propagate faster and more effectively in the light guide film 2, so that the light energy is evenly distributed to various parts of the light guide film 2. The light-guiding micro-lenses 7 can also shape and focus the light, which can effectively reduce unnecessary divergence of light energy and prevent light energy loss. Specifically, the array setting of the light-guiding micro-lenses 7 allows each key position light-emitting unit 6 of the backlight module to emit uniform and bright light, illuminating the luminous characters on the keyboard keycaps, and improving the user's experience.

[0030] Among them, the shading film 1 is printed with shading black ink 9 in areas other than the key position light emitting unit 6. The shading black ink 9 can block the light emitted by the light guide film 2, reduce the unnecessary divergence of light energy on the light guide film 2, and allow the light to be evenly diverged only from the key position light emitting unit 6 to illuminate the luminous characters on the keyboard keycaps. The key position light emitting unit 6 includes an AI key light emitting unit 10, an AI auxiliary key light emitting unit 11, and other key position light emitting units. A plurality of AI auxiliary key light emitting units 11 are provided. Color ink is printed on both the AI ​​key light emitting unit 10 and the AI ​​auxiliary light emitting unit 11. Printing color ink can make the AI ​​auxiliary key light emitting unit 11 and the AI ​​auxiliary key light emitting unit 10 and the AI ​​auxiliary key light emitting unit 11 have different colors. The I key light emitting unit 10 emits light of various colors, which is convenient for users to identify and improve the operability of the AI ​​key and the AI ​​auxiliary key d1. At the same time, different colors of ink layers can be printed according to needs. Specifically, through the setting of the light-guiding microlens 7, the AI ​​auxiliary key light emitting unit 11, the AI ​​key light emitting unit 10 and other key positions can emit uniform and bright light, and colored ink is printed on the AI ​​auxiliary key light emitting unit 11 and the AI ​​key light emitting unit 10. The colored light can be distinguished from the light emitting units of other key positions, which is convenient for users to identify the AI ​​key and the AI ​​auxiliary key, improve the operability of the AI ​​key and the AI ​​auxiliary key, and let users have a good experience.

[0031] Among them, the bottom surface of the reflective film 3 is printed with black ink, and the top surface is printed with white ink. The black ink on the bottom surface of the reflective film 3 can block the light emitted by the LED lamp 5 to prevent light leakage from the bottom. The white ink on the top surface can reflect the light emitted by the LED lamp 5, allowing the light to be fully absorbed and transmitted by the light guide film 2, making full use of the light emitted by the LED lamp 5 and improving the overall luminous effect of the AI ​​keyboard backlight module.

[0032] Among them, a light-shielding ink layer 13 located around the LED lamp 5 is printed on the FPC circuit board 4. The light-shielding ink layer 13 is to prevent light leakage from the bottom of the LED lamp 5, further reduce the loss of light energy, allow the light energy of the LED lamp 5 to be fully utilized, and enhance the overall backlight effect of the AI ​​keyboard.

[0033] Among them, a number of heat dissipation holes 12 are correspondingly opened on the light-shielding film 1, the light-guiding film 2 and the reflective film 3, and black light-shielding ink is provided around the walls of the heat-dissipating holes 12. The heat-dissipating holes 12 can assist the light-guiding film 2 in dissipating heat to prevent the light-guiding performance from being affected by excessive temperature; black light-shielding ink is provided around the walls of the heat-dissipating holes 12 to prevent light leakage from the side walls of the heat-dissipating holes 12, which helps to improve the light-guiding effect of the light-guiding film 2, avoids the loss of light energy, and improves the uniform luminous efficiency of the light-guiding film 2.

[0034] Among them, the area of ​​the light-shielding film 1 and the reflective film 3 is larger than the area of ​​the light-guiding film 2. The light-guiding film 2 is located between the light-shielding film 1 and the reflective film 3. The edges of the light-shielding film 1 and the reflective film 3 seal and cover the light-guiding film 2. In order to prevent light leakage from the edge of the light-guiding film 2, the waste of light evenly distributed in the light-guiding film 2 can be effectively reduced, the light-guiding effect of the light-guiding film 2 can be improved, and the overall luminous effect of the AI ​​keyboard backlight module can be improved.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An AI keyboard backlight module with a microlens light guide structure, characterized in that: The invention comprises a light shielding film (1), a light guiding film (2), a reflective film (3), and an FPC circuit board (4) which are arranged in sequence from top to bottom; a plurality of LED lamps (5) are arranged on the FPC circuit board (4); a light-transmitting key position light emitting unit (6) is arranged on the light shielding film (1); a plurality of light guiding micro lenses (7) are arranged in an array on the light guiding film (2); the light guiding micro lenses (7) and the key position light emitting unit (6) correspond to each other; lamp holes (8) corresponding to the LED lamps (5) are opened on the reflective film (3) and the light guiding film (2); the LED lamps (5) are embedded in the lamp holes (8); and a plurality of light guiding micro lenses (7) are also arranged in an array on the inner side wall of the lamp holes (8) on the light guiding film (2).

2. The AI ​​keyboard backlight module with a microlens light guide structure according to claim 1, characterized in that: The light-shielding film (1) is printed with light-shielding black ink (9) in areas other than the key position light-emitting units (6); the key position light-emitting units (6) include an AI key light-emitting unit (10), an AI auxiliary key light-emitting unit (11), and other key position light-emitting units; a plurality of the AI ​​auxiliary key light-emitting units (11) are provided; and the AI ​​key light-emitting units (10) and the AI ​​auxiliary key light-emitting units (11) are printed with colored ink.

3. The AI ​​keyboard backlight module with a microlens light guide structure according to claim 2, characterized in that: The bottom surface of the reflective film (3) is printed with black ink, and the top surface is printed with white ink.

4. The AI ​​keyboard backlight module with a microlens light guide structure according to claim 1, characterized in that: The FPC circuit board (4) is printed with a light-shielding ink layer (13) located around the LED lamp (5).

5. The AI ​​keyboard backlight module with a microlens light guide structure according to claim 1, characterized in that: The light-shielding film (1), the light-guiding film (2) and the reflective film (3) are each provided with a plurality of heat-dissipating holes (12) correspondingly, and the walls of the heat-dissipating holes (12) are provided with black light-shielding ink.

6. The AI ​​keyboard backlight module with a microlens light guide structure according to claim 1, characterized in that: The areas of the shading film (1) and the reflecting film (3) are larger than the area of ​​the light-guiding film (2); the light-guiding film (2) is located between the shading film (1) and the reflecting film (3); and the edges of the shading film (1) and the reflecting film (3) seal and cover the light-guiding film (2).

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