TW201324568A - Light module and luminous keyboard containing the same - Google Patents

Abstract

A luminous keyboard includes a first cover, a light module set on the first module, a circuit board and a masking member. Wherein, the light module includes a cover and a light-emitting component which set on a side surface of the cover. A light of the light-emitting component passes into a container of the cover. The light pass from a into-light surface to out-light surface of the cover. The circuit board is disposed on the out-light surface, and the masking member is disposed on the circuit board, and a plurality of buttons are disposed into openings of the masking member respectively. The light passes through the circuit board and the openings at the buttons. A second shields onto the masking member, the circuit board and the light-emitting component, and a slot is disposed on the second cover that corresponds to the openings. Thus, the light passes through the slot.

Description

Illuminated keyboard and light source module thereof

The invention relates to a light source module and a keyboard, in particular to a light source module and an illuminated keyboard capable of reducing light leakage.

With the advancement of the times, computers are one of the most popular electronic devices used in life. The keyboard is one of the indispensable input devices for the current use of computers. The main function of the keyboard is to input data, which is developed by the typewriter keyboard. The keyboard can input text, symbols or numbers, and can also control the operation of the computer.

In order to facilitate users of different needs, let them use the keyboard in the simplest way, so the design of the keyboard is more and more diverse. According to the design of the keyboard switch, it can be divided into mechanical, Membrane, Conductive Rubber, Capacitives, etc. The printing method classification can be divided into no imprinting, ink printing, laser printing, two-color molding, sublimation printing and the like.

Due to the variety of keyboards, in addition to selecting a keyboard with basic input functions, the user's visual effects are increasingly favored by users. For example, the illuminated keyboards currently available on the market can be used at night or in places where there is insufficient lighting, in addition to being visually appealing to the user. Therefore, the illuminated keyboard is more competitive in the market.

The conventional illuminated keyboard includes a plurality of light transmissive buttons and a light source module disposed on a cover body, and the backlight module is located below the button, so that the light emitted by the backlight module passes through the button, so that the button Illuminated, so users can clearly see the characters on the button at night or in low light.

However, in addition to passing through the buttons, the light emitted by the light source module will also leak through the gap between the adjacent buttons, thereby making it difficult for the user to recognize the characters on the button, especially at night or under lighting. In places, the gap between adjacent buttons will become brighter, which will increase the problem that the user does not recognize the key characters, resulting in poor light guidance.

In addition, the conventional light source module mostly uses the light guiding structure to guide the light of the light source to the bottom of the button, but the button far away from the light source will have the problem of insufficient light transmittance, so the brightness of each button is made. This will also cause difficulties for the user to recognize the characters on the keys.

In view of the above problems, the present invention provides a light source module and an illuminated keyboard, which can solve the problem that the brightness of the keys of the conventional illuminated keyboard is different, and can further solve the problem of light leakage between adjacent buttons of the conventional illuminated keyboard. problem.

The light source module of the present invention is suitable for a keyboard, wherein the keyboard has a plurality of buttons. The light source module comprises a cover body, a light-emitting component and a shielding member. The cover body comprises a light-transmitting plate and a plurality of frame edges, wherein the light-transmitting plate is made of a light-transmitting material, and the light-transmitting plate has a light-incident surface and a light-emitting surface. The light-emitting surface is provided on the side of the light-transmitting plate, and the adjacent frame edges are connected to each other to form a receiving groove. The light-emitting component is disposed on one of the frame edges, and the light-emitting component emits a light, and penetrates into the receiving groove from the frame edge, and the light is diverged from the light-incident surface. The shielding member is disposed on the light emitting surface, and the shielding member is provided with a plurality of openings, and the respective buttons are embedded in the openings, and the light passes through the openings and is projected to the buttons.

The invention further discloses a luminous keyboard comprising a first cover, a light source module, a circuit board, a shielding member, a plurality of buttons and a second cover. The light source module is disposed on the first cover body, and the light source module comprises a cover body and a light-emitting component, the cover body comprises a light-transmitting plate and a plurality of frame edges, and the material of the light-transmitting plate is a light-transmitting material, and the light-transmitting plate The utility model has a light-incident surface and a light-emitting surface, wherein a plurality of frame edges are arranged on the side of the light-transmitting plate, and the adjacent frame edges are connected to each other to form a receiving groove. The light-emitting component is disposed on one of the frame edges, and the light-emitting component emits a light, and penetrates into the receiving groove from the frame edge, and the light is diverged from the light-incident surface. The material of the circuit board is a light-transmitting material, the circuit board is disposed on the light-emitting surface, and a plurality of trigger switches are electrically disposed on the circuit board. The shielding member is disposed on the circuit board, and the shielding member is provided with a plurality of openings and respectively corresponding to the trigger switches. A plurality of buttons are respectively embedded in the openings of the shielding members, and the light passes through the circuit board and the openings and is projected to the buttons, and the second cover covers the shielding member, the circuit board and the light source module. The second cover body is provided with a slot, the opening is opposite to the position of the slot, and the light passes through the slot.

The effect of the invention is that, by the design of the cover body, the light emitted by the light-emitting component is evenly spread, so that the brightness of the button can be effectively avoided, and the plurality of openings of the shielding member can be used to allow A plurality of buttons are embedded therein, so as to shield the gap between adjacent buttons, thereby effectively avoiding light leakage between adjacent buttons.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

Please refer to FIG. 1A, FIG. 1B and FIG. 1C , which are schematic perspective views, exploded views and optical paths of a light source module according to a first preferred embodiment of the present invention.

As shown in the figure, the light source module 100 of the first preferred embodiment of the present invention is applicable to a keyboard 200 (refer to the keyboard 200 of FIGS. 2A-2C). The keyboard 200 has a plurality of buttons 240 (refer to FIG. 2A). Figure to button 240 of Figure 2C). The light source module 100 of the first preferred embodiment includes a cover 110, a light-emitting component 120 and a shield 130. The cover 110 includes a light-transmitting plate 112 and a plurality of frame edges 114. The material of the light-transmitting plate 112 A light transmissive material such as a light transmissive resin such as acrylic (PMMA), polycarbonate resin (PC), polystyrene (PS), cyclic olefin copolymer (COCs), cyclic olefin polymer (COP) Wait, but not limited to this.

The light transmissive plate 112 has a light incident surface 1122 and a light exit surface 1124. A plurality of frame edges 114 are disposed on the side of the light-transmitting plate 112, and the adjacent frame edges 114 are connected to each other to form a receiving groove 116, so that the cover body 110 is configured as a hollow structure. In this embodiment, the light-transmitting plate 112 and the frame edge 114 may be integrally formed, but not limited thereto, and the light-emitting component 120 is disposed on one of the frame edges 114.

The frame edge 114 of the present invention is made of a light transmissive material such as a light transmissive resin such as acrylic (PMMA), polycarbonate resin (PC), polystyrene (PS), and cyclic olefin copolymers (COCs). , olefin polymer (COP), etc., but not limited to this. When the light-emitting component 120 is disposed on the frame edge 114, a portion of the frame edge 114 where the light-emitting component 120 is not disposed is coated with a light-shielding material 1142. Therefore, when the light-emitting component 120 emits a light, the light is penetrated into the receiving groove 116 by the frame edge 114 to diffuse the light in the receiving groove 116, and the coating of the light-shielding material 1142 can avoid the groove 116. The diffused light is emitted by the frame edge 114, so that the light can be restricted from being emitted by the light-transmitting plate 112.

The accommodating groove 116 of the present invention has air therein. When the light penetrates into the accommodating groove 116, the light first diffuses in the accommodating groove 116, so that the light is uniformly diffused and then guided upward by the light-transmitting plate 112. The light distribution of the light-transmitting plate 112 can be made relatively uniform, the position of the light-transmitting plate 112 close to the light source can be reduced, and the position of the light-transmitting plate 112 away from the light source is relatively dark, so as to achieve the effect of uniform light, By accommodating the groove 116, the light emitted by the light-emitting component can be uniformly diffused, so that the brightness of the button 240 disposed above the light source module 100 can be improved.

In the present invention, the light emitted by the light-emitting component 120 can be uniformly diffused by the structural characteristics of the cover 110. When the button 240 is assembled in the light source module 100, the button 240 can be disposed above the cover 110, and the button can be pressed. The brightness of the illumination by the light from the illumination assembly 120 will be uniform due to the optical effects of the cover 110, thus avoiding the inconsistency of the brightness of the button 240.

In addition, the shielding member 130 of the embodiment is disposed on the light-emitting surface 1124. The shielding member 130 is provided with a plurality of openings 132, and the button 240 of the keyboard 200 is embedded in the opening 132. After the light is diffused and emitted from the light-emitting surface 1124, the light will pass through the openings 132 and be projected to the button 240, so that only the button 240 is transparent and bright, and the gap between the button 240 and the button 240 does not have light. Therefore, the present invention allows the user to use the keyboard 200 at night or in a place with insufficient lighting, and does not cause the user to have a problem that the button 240 characters are not easily recognized.

Moreover, in this embodiment, a plurality of side walls 133 are formed to extend beyond the edge of the opening 132, and adjacent side walls 133 are connected to each other to form a continuously extending retaining wall structure. Thus, when the light is diffused and emitted from the light-emitting surface 1124, the side wall 133 can further reduce the gap between the button 240 and the button 240, and the light is concentrated.

Please refer to FIG. 1D, which is a cross-sectional view of a light-transmitting plate according to a first preferred embodiment of the present invention. As shown in the figure, after the light is diffused in the accommodating groove 116, the light will be diverged from the light-emitting surface 1122 of the light-transmitting plate 112 from the light-emitting surface 1224. In order to increase the light diffusion effect, a light diffusion effect can be applied to the light incident surface 1122 of the light transmissive plate 112, for example, the light incident surface 1122 is a bite flower surface, or a coating having a light diffusion effect is applied. After the light is diffused through the light incident surface 1122, it is diverged by the light exit surface 1124, so that the light uniformity of the light exit surface 1122 can be increased.

In addition, in order to reduce the occurrence of light reflection or total reflection in the light-transmitting plate 112, the light intensity of the light-emitting surface 1124 is reduced. Therefore, the light-emitting surface 1124 of the light-transmitting plate 112 can be a mirror-polished surface, so that more Light passes through the light exit surface 1124 to increase the light illumination intensity of the light exit surface 1124. Even more, the light-emitting surface 1124 is a curved surface, so that the light-emitting surface 1124 is like a lens, so that the light is concentrated from the light-emitting surface 1124, and the light-irradiating intensity of the light-emitting surface 1124 is further increased.

2A, 2B, and 2C are perspective, exploded, and partial cross-sectional views of the illuminated keyboard of the first preferred embodiment of the present invention.

As shown, an embodiment of the illuminated keyboard 200 of the light source module 100 of the first preferred embodiment is used. The illuminating keyboard 200 of the embodiment includes a first cover 210, a light source module 100, a circuit board 220, a shielding member 130, a plurality of buttons 240 and a second cover 250. The light source module 100 is disposed on the first cover 210. The light source module 100 includes a cover 110 and a light-emitting component 120. The cover 110 includes a transparent plate 112 and a plurality of frame edges 114. The light-transmitting plate 112 has a light-incident surface 1122 and a light-emitting surface 1124. The plurality of frame edges 114 are disposed on the side of the light-transmitting plate 112, and the adjacent frame edges 114 are connected to each other to form a light-receiving plate. The accommodating groove 116 is provided on one of the frame edges 114.

When the light-emitting component 120 is operated to emit light, the light will pass through the frame 114 into the receiving groove 116, and the light will diffuse in the receiving groove 116. The diffused light is diverged from the light-emitting surface 1122 from the light-emitting surface 1124. The circuit board 220 of the present embodiment is made of a light-transmitting material, and the circuit board 220 is disposed on the light-emitting surface 1124. Therefore, the light can be emitted from the light-emitting surface 1124 to the circuit board 220 and then emitted.

The circuit board 220 is electrically disposed with a plurality of trigger switches 222. The shielding member 130 is disposed on the circuit board 220. The shielding member 130 is provided with a plurality of openings 132 and respectively corresponding to the trigger switch 222, and the plurality of buttons 240 are respectively embedded in the circuit board 220. Within the opening 132 of each of the shields 130. When light is emitted by the circuit board 220, light will pass through the opening 132 and be projected to the button 240.

The second cover 250 covers the shielding member 130, the circuit board 220 and the light source module 100. The second cover 250 is provided with a slot 252. The opening 132 is opposite to the slot 252, and the light passes through the slot. 252.

The present embodiment is applied to a conventional mechanical keyboard as an example. The present invention can also be applied to a membrane keyboard, a conductive rubber keyboard, or a conductive rubber keyboard. Or a capacitive keyboard (capacitives), etc., because there are many types of keyboards 200, and the mechanical keyboard 200 described in this embodiment is a common type of keyboard on the market, so the keyboard is not mentioned here. The operating structure of the 200 itself.

Please refer to FIG. 3A and FIG. 3B , which are schematic exploded and cross-sectional views of a light source module according to a second preferred embodiment of the present invention.

As shown in the figure, the light source module 100 of the embodiment is different from the light source module 100 of the first embodiment in that the embodiment further includes a reflective film 140 covering the receiving groove 116 and connecting the frame. The side 114, the reflective film 140 faces the light incident surface 1122 of the cover 110. In this way, when the light of the light-emitting component 120 passes through the accommodating groove 116 and diffuses in the accommodating groove 116, the reflective film 140 can reflect the light in the accommodating groove 116 to the light-incident surface 1122, so that the reflection is performed. The light passes through the light incident surface 1122 to the light exit surface 1124, so that the light irradiation intensity of the light exit surface 1124 can be increased.

In addition, the present embodiment can also be applied to various types of keyboards such as a film type keyboard, a conductive rubber type keyboard, or a contactless electrostatic capacity type keyboard, as in the first embodiment.

Please refer to FIG. 4A and FIG. 4B , which are exploded and cross-sectional views of the light source module 100 according to the third preferred embodiment of the present invention.

As shown in the figure, the embodiment is different from the first embodiment in that the frame edge 114 of the embodiment is made of a light shielding material 1142, and at least one frame edge 114 is provided with a through slot 118 for the light emitting component 120 to be received therein. . The light-emitting component 120 can directly emit light into the accommodating groove 116 by the permeable groove 118, so that the light emitted by the illuminating component 120 does not need to pass through the frame edge 114, thereby reducing the loss of light energy and further increasing the light output. The light intensity of the surface 1124. In addition, the present embodiment can also be applied to various types of keyboards such as a film type keyboard, a conductive rubber type keyboard, or a contactless electrostatic capacity type keyboard, as in the first embodiment.

Please refer to FIG. 5A to FIG. 5B , which are cross-sectional views of a light source module 100 according to a fourth preferred embodiment of the present invention. This embodiment is different from the first embodiment in that the number of the light-emitting components 120 of this embodiment is different. This embodiment includes four light-emitting components 120. Each of the frame edges 114 is provided with a light-emitting component 120, so that the receiving slot can be accommodated. The light in the 116 is increased, so that the light irradiation intensity of the light-emitting surface 1124 can be increased. This embodiment is described by taking four light-emitting components 120 as an example, but is not limited by this embodiment.

In this embodiment, two light-emitting components 120 may be respectively disposed on two opposite or adjacent frame edges 114 according to actual needs, or three adjacent light-emitting components 120 may be respectively disposed on three adjacent frame edges 114, even in a single A plurality of light-emitting components 120 are disposed on one of the frame edges 114. In addition, the present embodiment can also be applied to various types of keyboard keyboards 200 such as a film type keyboard, a conductive rubber type keyboard, or a contactless electrostatic capacity type keyboard, as in the first embodiment.

In summary, the light source module and the illuminated keyboard of the present invention have a plurality of buttons, and the light-emitting keyboard allows the light emitted by the light-emitting component to be uniformly diffused by the cover of the light source module, and is shielded by the shielding member. A plurality of openings are embedded with a plurality of buttons, so that the gap between adjacent buttons can be shielded to avoid light leakage between adjacent buttons.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

100. . . Light source module

110. . . Cover

112. . . Idol

1122. . . Glossy surface

1124. . . Glossy surface

114. . . Frame edge

1142. . . Shading material

116. . . Locating slot

118. . . Through slot

120. . . Illuminating component

130. . . Shield

132. . . Opening

133. . . Side wall

140. . . Reflective film

200. . . keyboard

210. . . First cover

220. . . Circuit board

222. . . Trigger switch

240. . . button

250. . . Second cover

252. . . Slotting

FIG. 1A is a perspective view of a light source module according to a first preferred embodiment of the present invention.

FIG. 1B is an exploded perspective view of a light source module according to a first preferred embodiment of the present invention.

FIG. 1C is a schematic diagram of an optical path of a light source module according to a first preferred embodiment of the present invention.

1D is a cross-sectional view of a light-transmitting sheet according to a first preferred embodiment of the present invention.

2A is a perspective view of the illuminated keyboard of the first preferred embodiment of the present invention.

2B is an exploded perspective view of the illuminated keyboard of the first preferred embodiment of the present invention.

2C is a partial cross-sectional view of the illuminated keyboard of the first preferred embodiment of the present invention.

3A is an exploded perspective view of a light source module according to a second preferred embodiment of the present invention.

3B is a cross-sectional view of a light source module in accordance with a second preferred embodiment of the present invention.

4A is an exploded perspective view of a light source module according to a third preferred embodiment of the present invention.

4B is a cross-sectional view of a light source module in accordance with a third preferred embodiment of the present invention.

Figure 5 is a cross-sectional view showing a light source module according to a fourth preferred embodiment of the present invention.

100. . . Light source module

110. . . Cover

112. . . Idol

1122. . . Glossy surface

1124. . . Glossy surface

114. . . Frame edge

116. . . Locating slot

118. . . Through slot

120. . . Illuminating component

130. . . Shield

132. . . Opening

200. . . keyboard

210. . . First cover

220. . . Circuit board

222. . . Trigger switch

240. . . button

250. . . Second cover

252. . . Slotting

Claims (12)

A light source module is applicable to a keyboard, the keyboard has a plurality of buttons, and the light source module comprises:
a cover containing:
a light transmissive plate, the material is a light transmissive material, the light transmissive plate has a light incident surface and a light exit surface; and a plurality of frame edges are disposed on the side of the light transmissive plate adjacent to the frame edges Connected to each other to form a receiving groove;
a light-emitting component is disposed on one of the frame edges, the light-emitting component emits a light, and the light penetrates into the receiving groove from the edge of the frame, the light is diverged from the light-emitting surface by the light-incident surface; and a shielding member The shielding member is disposed on the light-emitting surface, and the shielding member is provided with a plurality of openings, each of the buttons is embedded in each of the openings, and the light passes through the openings and is projected to the button. The light source module of claim 1, wherein the material of the frame is a light transmissive material, and the frame edges are coated with a light shielding material. The light source module of claim 1, wherein the material of the frame is a light shielding material, and at least one of the frame edges is provided with a through groove for the light emitting component to be received therein. The light source module of claim 1, further comprising a reflective film covering the receiving groove and connecting the frame edges, the reflective film facing the light incident surface of the cover. The light source module of claim 1, wherein the light emitting surface is a mirror polished surface. The light source module of claim 1, wherein the light incident surface is a bite flower surface. The light source module of claim 1, further comprising a plurality of side walls extending from an edge of the opening, and adjacent ones of the side walls are connected to each other. An illuminated keyboard comprising:
a first cover;
A light source module is disposed on the first cover body, and the light source module comprises:
a cover containing:
a light transmissive plate, the material is a light transmissive material, the light transmissive plate has a light incident surface and a light exit surface; and a plurality of frame edges are disposed on the side of the light transmissive plate adjacent to the frame edges Connected to each other to form a receiving groove;
a light-emitting component is disposed on one of the frame edges, the light-emitting component emits a light, and the light penetrates into the receiving groove from the edge of the frame, and the light is diverged from the light-emitting surface by the light-incident surface;
a circuit board, the material is a light-transmitting material, the circuit board is disposed on the light-emitting surface, and the circuit board is electrically provided with a plurality of trigger switches;
a shielding member is disposed on the circuit board, the shielding member is provided with a plurality of openings respectively corresponding to the trigger switches;
a plurality of buttons are respectively embedded in the openings of each of the shielding members, and the light passes through the circuit board and each of the openings and is projected to the button; and a second cover body covers the shielding member The circuit board and the light source module, the second cover body is provided with a slot, the opening is opposite to the position of the slot, and the light passes through the slot. The illuminating keyboard of claim 8, wherein the material of the frame is a light transmissive material, and the frame edges are coated with a light shielding material. The illuminating keyboard of claim 8, wherein the material of the frame is a light shielding material, and at least one of the frame edges is provided with a through slot for the light emitting component to be received therein. The illuminating keyboard of claim 8 further comprising a reflective film covering the accommodating groove and connecting the frame edges, the reflecting film facing the light incident surface of the cover. The illuminating keyboard of claim 8, further comprising a plurality of side walls extending from an edge of the opening, and adjacent ones of the side walls are connected to each other.