CN102081460B - Luminous keyboard - Google Patents

Abstract

The invention relates to a luminous keyboard. The luminous keyboard comprises a plurality of keys, a thin film circuit board, a luminous element and a lower cover. The lower cover of the light-emitting keyboard is used for bearing a plurality of keys, the thin film circuit board and the light-emitting element and has the effect of guiding light. The light-emitting keyboard does not need to be additionally provided with a light guide plate, and has the effects of simplifying the structure and reducing the thickness of the keyboard.

Description

illuminated keyboard

technical field

The invention relates to a keyboard, in particular to a keyboard with a light-emitting function.

Background technique

The keyboard is currently the most commonly used input device, which can be applied to computers, personal digital assistants, mobile phones, or any electronic equipment that needs to be set for key input. In addition to the basic function of the keyboard as an input interface, in order to provide users with the ability to accurately press the key position to avoid input errors in an environment with poor lighting, a luminous keyboard has come out.

Please refer to the key structure of the existing luminous keyboard shown in FIG. 1 . The button structure includes a casing 10 , a reflective sheet 11 , a light guide plate 12 , a film circuit board 13 , a plurality of elastic bodies 14 , buttons 15 and light emitting elements 16 . The casing 10 is used for accommodating the light emitting element 16 , the light guide plate 12 , the reflective sheet 11 , the film circuit board 13 , the elastic body 14 and the button 15 . When the user presses the key 15 , the elastic body 14 presses down the thin film circuit board 13 to make it electrically conductive due to the pressing of the key 15 . The light-emitting elements 16 are arranged on both sides of the light guide plate 12 to provide light to enter the light guide plate 12, and at the same time transmit bright light out of the film circuit board 13, the elastic body 14 and the key 15 through the reflection of the reflective sheet 11, so that the key 15 to produce a glow effect.

It can be seen from the above structure that the existing luminous keyboard has a layer-by-layer structure, which is extremely cumbersome and complicated, and needs to be covered by a casing. The demand for thinner products.

Contents of the invention

The technical problem to be solved by the present invention is to provide a light-emitting keyboard with a simplified structure and a thinner thickness in view of the above-mentioned shortcomings in the prior art.

The technical solution adopted by the present invention to solve the technical problem is to provide a luminous keyboard, which includes a plurality of keys; a film circuit board arranged under the plurality of keys and used to detect the pressing signals of the plurality of keys; at least one a light emitting element; and a lower cover, the lower cover has a corresponding first surface and a second surface, the first surface is used to carry the plurality of buttons, the thin film circuit board and the light emitting element, the second surface is coated with Reflective paint, wherein the lower cover injects the light generated by the light-emitting element onto the first surface and reflects it to the plurality of keys on the second surface.

The first surface includes a plurality of light guide points.

The luminous keyboard also includes an elastic body arranged between the plurality of keys and the thin film circuit board.

The second surface is concave.

The lower cover is made of transparent plastic.

The lower cover of the light-emitting keyboard of the present invention is not only used to carry keys, thin film circuit boards and light-emitting elements, but also has the effect of guiding light. Therefore, the light-emitting keyboard of the present invention does not need to be provided with an additional light-guiding plate structure like the existing light-emitting keyboard. Therefore, the structure can be simplified and the thickness of the light-emitting keyboard can be reduced.

Description of drawings

FIG. 1 is a schematic structural view of an existing luminous keyboard;

Fig. 2 is a schematic structural diagram of a luminous keyboard according to a preferred embodiment of the present invention;

FIG. 3 is a partially enlarged view of FIG. 2 .

Detailed ways

The present invention proposes a luminous keyboard, which simplifies components and reduces the thickness of the keyboard by combining the lower cover with a light guide function, thereby solving the problems caused by the prior art.

Please refer to FIG. 2 and FIG. 3 , FIG. 2 is a schematic structural diagram of a preferred embodiment of the luminous keyboard of the present invention, and FIG. 3 is a partial enlarged view of FIG. 2 . As shown in FIG. 2 , the light-emitting keyboard 2 includes a plurality of keys 21 , a plurality of elastic bodies 25 , a film circuit board 22 , a light-emitting element 23 and a lower cover 24 . The elastic body 25 is arranged between the button 21 and the thin film circuit board 22 respectively. The lower cover 24 is made of light-transmitting plastic and includes a first surface 241 and a second surface 242. The light-emitting element 23 is arranged on the lower cover 24 The lower cover 24 is disposed on the bottom layer of the light-emitting keyboard 2 , and the first surface 241 of the lower cover 24 is used to carry the above-mentioned keys 21 , elastic body 25 , film circuit board 22 and light-emitting element 23 . Preferably, but not intended to limit the present invention, a plurality of light guide points 244 are disposed on the first surface 241 of the lower cover 24 for uniformly diffusing light. In addition, the second surface 242 of the lower cover 24 is concave and coated with a layer of reflective paint 243 .

Referring to FIG. 3 , when the user presses the button 21 and simultaneously presses the elastic body 25 , the film circuit board 22 can be pressed simultaneously to make it electrically conductive. The light emitting element 23 provides light to illuminate the first surface 241 of the lower cover 24 . Since the lower cover 24 is made of light-transmitting plastic and its second surface 242 is coated with reflective paint 243, the light incident on the first surface 241 of the lower cover 24 will pass through the lower cover 24 to reach the second surface 242. And it is reflected upward by the reflective paint 243 to a plurality of light guide points 244 so that the light can evenly diverge and then penetrate the thin film circuit board 22, the elastic body 25 and the button 21, so that the button 21 produces a luminous effect, so that the user can be in an environment with poor lighting. , you can still accurately press the key position without inputting mistakes.

Since the lower cover 24 of the luminous keyboard of the present invention is not only used to carry the keys 21, the thin film circuit board 22 and the luminescent element 23, but also has the effect of guiding light, the luminous keyboard of the present invention does not need to set additional The light guide plate structure can simplify the structure and reduce the thickness of the luminous keyboard.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the claims of the present invention. Therefore, all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in this disclosure. within the scope of the claimed invention.

Claims (5)

1. an illuminated keyboard is characterized in that, comprising:

A plurality of buttons;

Film circuit board is arranged at below these a plurality of buttons and in order to detect the signal of pushing of these a plurality of buttons;

At least one light-emitting component; And

Lower cover; It has corresponding first surface and second surface; This first surface is in order to carry these a plurality of buttons, this film circuit board and this light-emitting component, and this second surface is coated with reflectorised paint, wherein; This lower cover is incident to this first surface with the light that this light-emitting component produced, and reflexes to this a plurality of buttons in this second surface.

2. illuminated keyboard as claimed in claim 1 is characterized in that: this first surface includes a plurality of leaded light points.

3. illuminated keyboard as claimed in claim 1 is characterized in that: also comprise the elastic body that is arranged between these a plurality of buttons and this film circuit board.

4. illuminated keyboard as claimed in claim 1 is characterized in that: this second surface is a concave surface.

5. illuminated keyboard as claimed in claim 1 is characterized in that: this lower cover is made by the light-permeable plastics.

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