CN202067710U - Illuminated keycap structure - Google Patents

Abstract

The utility model discloses a luminous key cap structure, it contains casing filling layer, end chromatograph, symbol layer, luminescent layer and protective layer. The shell filling layer comprises a filling material, and the ground color layer covers the upper surface of the shell filling layer. The symbol layer covers the base color layer. The light-emitting layer contains a light-emitting material, covers the ground color layer, and directly contacts the symbol layer. The protective layer is light permeable and covers the upper surface of the shell filling layer.

Description

Illuminated keycap structure

technical field

The utility model relates to a luminous key cap structure. In particular, it relates to a luminescent keycap structure containing luminescent material, and the positions of the luminescent layer and the symbol layer can be changed according to the situation.

Background technique

With the advancement of science and technology, various electronic devices have filled the daily life of modern people, and at the same time brought people a convenient living environment. For example, electronic devices such as desktop computers, notebook computers and mobile phones have become one of the necessary tools for people's life and work. Generally speaking, users need to use input devices to operate electronic devices. For example, a mouse or a keyboard is used to move a cursor or input data.

In recent years, due to the rapid development of the information industry, many users may use portable information devices in different environments. On the one hand, the design concept of computers is becoming more and more thinner and smaller, so as to be convenient to carry around, and notebook computers or personal digital assistants are products in response to this trend.

Taking notebook computers as an example, when users use notebook computers in different environments, they often cannot clearly recognize the symbols on the keyboard due to the dark environment and weak light of the user, causing the user to type or Mistyped characters when entering information, or even completely missing the location of a button. Once a wrong character is input, the user must clear the wrong character before continuing to input, which causes inconvenience to the user and makes the operation difficult.

The same is true for desktop computers. If the user is using the desktop computer, the environment where the user is in is dark, or when the light source cannot sufficiently illuminate the keyboard structure of the desktop computer, the user is often typing or inputting information. Entering wrong characters from time to time will cause the user to repeatedly input, which will increase the fatigue of the user's eyes, and in severe cases, may even cause visual impairment due to barely recognizing the key symbols.

Therefore, the launch of the luminous keyboard can improve the inconvenience of using the keyboard in places with insufficient light. What's more, through different lighting configurations, the information device using the lighting keyboard can be made to look more beautiful and thus increase its sales.

Therefore, there is an improved solution proposed to address this problem, so that the keys can emit active light sources to overcome the inconvenience caused by people using the keyboard in a dark environment. Currently, keyboards with light-emitting elements appear on the market. A common configuration is to arrange a plurality of light-emitting elements on a circuit board, and arrange the circuit board with the plurality of light-emitting elements on one side of the keyboard. The light emitted by the light-emitting element is evenly diffused to the bottom of each key of the keyboard through a light guide plate, so that each key has a luminous effect.

The light sources of the backlight module currently include cold cathode ray tube (Cold Cathode Fluorescent Lamp, CCFL), hot cathode ray tube (Hot Cathode Fluorescent Lamp, HCFL), electroluminescent film (Electro Luminscence, EL) and light emitting diode (Light emitting diode). , LED) and other light sources. Known luminescent keyboards use EL or LED as the light source of their backlight modules, or include the use of luminescent pigments or fluorescent labels. However, the luminescent pigment or fluorescent label is easy to fall off or the fluorescent label is lost during use, resulting in poor durability.

Based on the considerations of the above-mentioned missing points, the inventor conducted an in-depth analysis and discussion on the characteristics of the luminous keyboard structure, and after various evaluations and considerations, as well as painstaking research and development, and persistent trial production and modification, this luminous keyboard was designed. The birther of a new type of keyboard structure patent.

Utility model content

The purpose of this utility model is to provide a light-emitting keycap structure to solve the above problems.

In order to achieve the above purpose, the utility model proposes a light-emitting keycap structure, which includes a casing filling layer, a ground color layer, a symbol layer, a light-emitting layer and a protective layer. The shell filling layer contains a filling material, and the base color layer covers the upper surface of the shell filling layer. The symbol layer overrides the base color layer. The luminescent layer contains luminescent material that covers the base color layer and directly contacts the symbol layer. The protective layer is light-transmissive and covers the upper surface of the housing filling layer.

In a first embodiment of the present invention, the shell filling layer in the light-emitting keycap structure may include a polymer, such as at least one of a hard plastic and a soft silicone. In a second embodiment of the present invention, the background color layer has a light background color, which serves as a contrast basis for the symbol layer. In a third embodiment of the present invention, the luminescent layer directly covers the symbol layer, or the symbol layer directly covers the luminescent layer. In a fourth embodiment of the present invention, the symbol layer includes at least one color, such as red, yellow, green, blue and black. In a fifth embodiment of the present invention, the luminescent material includes at least one of a sulfide, an aluminum oxide, a rare earth element, a fluorescent material, and a phosphorescent material, such as zinc sulfide (ZnS), sulfide At least one of calcium (CaS), strontium aluminum oxide (SrAl ₂ O ₄ ), calcium aluminum oxide (CaAl ₂ O ₄ ) and barium aluminum oxide (BaAl ₂ O ₄ ). In a sixth embodiment of the present utility model, the luminescent material has a thickness of 50 microns to 100 microns. In a seventh embodiment of the present invention, the protective layer may include a transparent polymer, such as at least one of polycarbonate film and polyethylene glycol ester film. In an eighth embodiment of the present utility model, the protective layer may have a thickness of 1 mm-0.8 mm.

The utility model has the advantage that the light-emitting keycap structure can achieve long-term lighting without consuming extra electric energy, which is convenient for users to see the symbols on the keyboard clearly under the condition of weak light or lack of lighting. It is an environmentally friendly and practical object.

Description of drawings

Fig. 1 is the three-dimensional structure of the luminous key cap of the present utility model;

Fig. 2 is a side view of the luminous keycap of the present invention;

Fig. 3 is that the surface of the symbol layer has at least one symbol;

Fig. 4 is a side view of another embodiment of the luminous keycap of the present invention;

Fig. 5 is a different embodiment of the luminous keycap of the present invention.

Description of main component symbols

100 illuminated keycaps

110 shell filling layer

111 upper surface

120 background layers

130 symbol layers

131 symbols

140 luminous layers

150 layers of protection

Detailed ways

1 to 5 illustrate various implementations of the light-emitting keycap structure of the present invention. Please refer to FIG. 1 , which shows the three-dimensional structure of the luminous keycap 100 of the present invention. Please refer to FIG. 2 , the light-emitting keycap 100 of the present invention includes a shell filling layer 110 , a base color layer 120 , a symbol layer 130 , a light-emitting layer 140 and a protective layer 150 . Various components in the light-emitting keycap 100 of the present invention can have various implementations to assist users to use the light-emitting keycap of the present invention conveniently and increase the practicability of the light-emitting keycap 100 of the present invention.

Please refer to FIG. 2 , the shell filling layer 110 is a basic supporting element located below in the luminous keycap 100 of the present invention. The casing filler layer 110 is a solid support element that typically includes a filler material. For example, the casing filling layer 110 includes a polymer. For example, the polymer can be at least one of a hard plastic and a soft silicone. The hard plastic can be engineering plastics and the like, and the soft silicone can be silicone rubber and the like. The size of the shell filling layer 110 can be adjusted depending on the application. For example, when applied to a mobile device, the size of the casing filling layer 110 can be relatively small, and can be a planar structure, as shown in FIG. " general requirements. On the other hand, when applied to a larger desktop device, the size of the shell filling layer 110 can be slightly larger, and can be a three-dimensional structure, as shown in the figure, stacked in multiple layers to facilitate the user's operation.

The base color layer 120 covers the upper surface 111 of the housing filling layer 110 and serves as a basis for visually contrasting the symbol layer 130 and the light emitting layer 140 . Preferably, the base color layer 120 directly covers the upper surface 111 of the casing filling layer 110 . The base color layer 120 usually includes a plastic material, so it can be a plastic film with a light base color. For example, the color of the base color layer 120 can be white, ivory, milk white, snowy white, oyster white, bluish white, light gray gray), light blue (lightblue), light green (lightgreen), light yellow (lightyellow), beige (cream)...etc.

g、w、

ù、Ω、∑、β、π、Ж、я、

あ、ま...等等，或是各种语言输入时所需的文字，例如艹、戈、牛、虫...等等，或是其他书写时所需的符号，例如

#、*、、&、！、(、)、+、^、_、/...等等。Please refer to FIG. 2 , the symbol layer 130 is located above the base color layer 120 and covers the base color layer 120 . The symbol layer 130 is located on the upper surface 111 of the shell filling layer 110 . Please refer to FIG. 3 , the symbol layer 130 has at least one symbol 131 on its surface. The symbols 131 in the symbol layer 130 can be numbers, such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, or letters required by various languages, such as ㄉ, ㄕ, ㄝ, ㄞ , J, Q,

g, w,

ù, Ω, ∑, β, π, Ж, я,

あ, ま... etc., or characters required for various language input, such as 艺, Ge, cow, insect... etc., or other symbols required for writing, such as

#,*,,&,! , (,), +, ^, _, /...etc.

In an embodiment of the present invention, there may be only one symbol 131 in the symbol layer 130 , or multiple symbols may be paralleled at the same time. For example, different numbers, letters, characters and symbols may be juxtaposed, or numbers, letters, characters and symbols in different languages may be juxtaposed, which is convenient for users to switch and use. In another embodiment of the present invention, the different symbols 131 in the symbol layer 130 may contain at least one color, or contain multiple colors, such as red, yellow, green, blue and black, etc., to It is easy for users to distinguish clearly.

Taking the keycap shell of a computer keyboard as an example, usually a keycap shell includes a plurality of characters or symbols. Since the background color layer 120 of the present invention has a lighter contrast color, the different symbols 131 in the symbol layer 130 are Can contain at least one different color. Finally, after the luminous keycap 100 of the present invention is completed, vivid characters or symbols can be presented through contrast and active luminescence, and a contrast effect of various colors can be achieved.

The light emitting layer 140 covers the symbol layer 130 and the base color layer 120 , and directly contacts the symbol layer 130 . The light-emitting layer 140 includes one or more light-emitting materials, which can be fluorescent or phosphorescent light-emitting materials, such as sulfide, aluminum oxide, or rare earth elements. The luminescent material may have an appropriate thickness, such as zinc sulfide, calcium sulfide, strontium aluminum oxide, calcium aluminum oxide, barium aluminum oxide, etc. with a thickness of 50 microns to 100 microns. A better light-emitting layer 140 has higher brightness and longer light-emitting time.

In an embodiment of the present invention, please refer to FIG. 4 , the positions of the light emitting layer and the symbol layer can be changed according to circumstances. For example, the light emitting layer 140 directly covers the symbol layer 130 , that is, the light emitting layer 140 is directly on the symbol layer 130 , so that the symbols 131 in the symbol layer 130 appear brighter. On the other hand, please refer to FIG. 3 , the symbol layer 130 of this embodiment will directly cover the light-emitting layer 140, that is, the symbol layer 130 will be directly on the light-emitting layer 140, so that the symbols 131 in the symbol layer 130 look clearer Some, and thus may be the appropriate implementation required by the situation, to achieve a better result.

On the luminescent layer 140 and the symbol layer 130, a layer of light-transmitting protective layer 150 is covered to cover the upper surface 111 of the housing filling layer 110 to protect all components under it from damage such as moisture and dust. . The light-transmitting protective layer 150 can be a plastic film or a polymer material, preferably a transparent polymer, for example, a polycarbonate film (PC film, polycarbonate film) and a polyethylene glycol ester film (PET film, polyethylene terephthalate )...etc. The protective layer may have a thickness of 1mm-0.8mm.

When the luminescent material in the luminescent layer 140 absorbs light, the electrons of atoms in the luminescent material will transition from the ground state to the excited state due to the excitation of photons. When the electrons return from the excited state to the ground state, the energy is radiated in the form of light, thereby illuminating all the symbols 131 in the symbol layer 130 for a long time. In this way, there is no need to use energy-consuming light sources to illuminate the buttons all the time, so as to achieve the goals of power saving, energy saving and environmental protection.

The light source for the luminescent material to absorb can be the light source of the screen, natural light such as sunlight, artificial light source such as light bulb, built-in light source such as light emitting diode (LED) or external light source such as flashlight. In any case, as long as it is irradiated by a suitable light source, the luminescent layer 140 will illuminate all the symbols 131 in the symbol layer 130, so that the key 100 can be seen more clearly by the user when the light is relatively weak, so as to improve the usability. the convenience of the reader. In addition, as shown in FIG. 5 , the keyboard including the luminous keycap 100 of the present invention can also be a flat keyboard.

Claims (23)

1. a light emitting keycap structure is characterized in that, this light emitting keycap structure comprises: the housing packed layer, and it comprises a packing material; The background color layer covers the upper surface of this housing packed layer; Symbol layer covers this background color layer; Luminescent layer, it comprises a luminescent material and covers this background color layer, and wherein this luminescent layer directly contacts this symbol layer; And protective layer, its light-permeable also covers the upper surface of this housing packed layer.

2. light emitting keycap structure as claimed in claim 1 is characterized in that, this housing packed layer is a rigid plastic cement.

3. light emitting keycap structure as claimed in claim 1 is characterized in that, this housing packed layer is a soft silica gel.

4. light emitting keycap structure as claimed in claim 1 is characterized in that, this background color layer has a shallow background color, as the contrast basis of this symbol layer.

5. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent layer directly covers this symbol layer.

6. light emitting keycap structure as claimed in claim 1 is characterized in that this symbol layer directly covers this luminescent layer.

7. light emitting keycap structure as claimed in claim 1 is characterized in that this symbol layer comprises at least one color.

8. light emitting keycap structure as claimed in claim 7 is characterized in that this color comprises redness, yellow, green, blueness and black.

9. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent material comprises a kind of sulfide.

10. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent material comprises a kind of aluminum oxide.

11. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent material comprises a rare earth element.

12. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent material comprises a fluorescent material.

13. light emitting keycap structure as claimed in claim 1 is characterized in that this luminescent material comprises a phosphor material.

14. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material comprises zinc sulphide (ZnS).

15. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material comprises calcium sulfide (CaS).

16. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material comprises strontium aluminum oxide (SrAl ₂O ₄).

17. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material comprises calcium aluminum oxide (CaAl ₂O ₄).

18. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material comprises barium aluminum oxide (BaAl ₂O ₄).

19. light emitting keycap structure as claimed in claim 1 is characterized in that, this luminescent material has 50 microns-100 microns thickness.

20. light emitting keycap structure as claimed in claim 1 is characterized in that this protective layer comprises a transparent polymer.

21. light emitting keycap structure as claimed in claim 20 is characterized in that this transparent polymer comprises polycarbonate film.

22. light emitting keycap structure as claimed in claim 20 is characterized in that this transparent polymer comprises the polyethylene glycol ester film.

23. light emitting keycap structure as claimed in claim 1 is characterized in that, this protective layer has 1 millimeter-0.8 millimeter thickness.

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