TW201421517A - Keyboard with light-emitting key cap - Google Patents

Abstract

A keyboard with light-emitting key cap, mainly composed of a keyboard part and a plurality of light emitting units, the keyboard part comprises at least a circuit board having a plurality of keyboard instruction parts, a plurality of key caps disposed corresponding to the keyboard instruction parts, and a plurality of elastic support bodies disposed between the circuit board and the key caps, for triggering the keyboard instruction parts when pressed by the key caps, and the key cap and the elastic support body define a light emitting region; the light emitting units are respectively arranged in correspondence to an individual key cap, each light emitting unit includes a light emitting chip disposed on the circuit board, an encapsulation layer covering the light emitting chip, and a light shading layer partly disposed on the encapsulation layer to shield light projected by the light emitting chip onto adjacent key caps so as to limit light generating illumination only within the light emitting region.

Description

Keycap illuminated keyboard

The invention relates to a keyboard for illuminating a key cap, in particular to a keyboard in which a plurality of light-emitting units are arranged corresponding to each key cap to make each key cap shine.

Computer equipment has become a necessity in today's life. The keyboard is an indispensable input device for computer equipment. In order to use computer equipment in various environments, there are many keyboards with lighting functions on the market. The illuminating keyboards are disclosed in U.S. Patent Nos. 6, 648, 530, 7, 589, 292, U.S. Patent No. 7,531,764, and U.S. Patent No. 6,860,612, each of which discloses a plurality of keyboard structures provided with a light-emitting module to provide low Illumination in illumination or dark environment, however, in order to make the illumination uniform, the illumination module used in the general keyboard structure mostly includes a light guide plate, and the light guide plate transmits the light projected by the light-emitting element, so that the whole keyboard is uniformly illuminated, but the computer Nowadays, the device pursues thinning, and the setting of the light guide plate causes the overall thickness of the keyboard to be not particularly thin and light, and the assembly requires more complicated alignment, which leads to complicated process.

To this end, the inventor of the present invention proposes another embodiment of the illuminating keyboard, which is in the case of the Patent No. 201115609 of the Republic of China, using a illuminating light strip disposed in an active space, and a non-transparent light on the illuminating light strip. The area and a light-transmissive area project a light source to the keycap, thereby utilizing the light-emitting light strip partially disposed in the movable space, thereby eliminating the volume occupied by the conventional light-emitting light board, so that the thickness of the keyboard can be thinned and the weight can be reduced. However, the uniformity of the light projected by the illuminated keyboard depends on the light guiding property of the light guiding strip. If the light guiding property of the light guiding strip is poor, the keyboard may be partially over-bright and partially too dark, so that it cannot be provided. Uniform light projection effect. Therefore, if the lighting structure of the keyboard can be further improved in response to the above problems, the above problems can be solved.

The main object of the present invention is to overcome the problem of uneven or excessive glare that occurs in the practice of conventional illuminated keyboards.

To achieve the above objective, the present invention provides a keyboard with a keycap illumination, which is mainly composed of a keyboard portion and a plurality of light-emitting units. The keyboard portion includes at least one circuit board having a plurality of keyboard command portions, and a plurality of keyboard command portions. a keycap disposed, and a plurality of elastic support bodies disposed between the circuit board and the keycap and being pressed by the keycap to trigger the keyboard command portion, and defining a light-emitting interval by the keycap and the elastic support body Each of the light-emitting units is disposed corresponding to each of the keycaps, and each of the light-emitting units includes a light-emitting chip disposed on the circuit board, an encapsulation layer covering the light-emitting chip, and a portion disposed on the package layer to shield the light-emitting chip The light-emitting wafers that are directed toward the adjacent keycaps limit the light to produce a bright light-shielding layer only within the illumination interval.

In one embodiment, the circuit board further includes an upper film, a lower film, and a spacer film disposed between the upper film and the lower film. Further, the light emitting unit may be selectively disposed on one of the upper film, the lower film or the spacer film. If the illuminating unit is disposed on the spacer film, the upper layer film has a pair of first illuminating units for the illuminating chip to be accommodated therein; if the illuminating unit is disposed on the lower layer film, the upper layer film has the a first perforation, and the spacer film has a pair of second perforations that should be illuminated and communicated with the first perforations for receiving the illumination unit.

In one embodiment, the circuit board has a reflective layer that limits the illumination unit to only project light into the illumination interval.

In one embodiment, the light shielding layer is made of an opaque material or a reflective material. On the other hand, the vertical cross section of the encapsulation layer may be a circle or a polygon.

In an embodiment, the elastic support body is made of a light guiding material.

In an embodiment, the keycap has a light transmissive area and a non-transparent area.

In an embodiment, the keyboard portion further includes a linkage mechanism supporting the keycap and being pressed by the keycap, and a support plate carrying the linkage mechanisms. Further, the circuit board is disposed above the support board, or the circuit board is disposed under the support board, and the support board has at least one pair of through holes that should be opened by some light emitting units.

The keyboard with the key cap illumination of the invention has the following characteristics compared with the conventional illuminated keyboard structure:

First, the structure is streamlined. The keyboard of the keycap illumination of the invention eliminates the implementation of the illumination board or the illumination strip, makes the keyboard structure simple and thin, and simplifies the overall process of the keyboard.

Second, the keyboard shines evenly. In the keyboard of the present invention, the keyboard of the keycap is changed by a plurality of light-emitting units corresponding to each of the keycaps, and the light-shielding layer is used to restrict the light from being projected only toward the corresponding keycaps, so that the light emitted by each of the keycaps can be uniform, and thus does not occur. A problem with a partial keyboard that is too bright or too dark occurs. On the other hand, the arrangement of the light shielding layer allows the light to be concentratedly projected, so that the excessive brightness of the light does not cause the brightness of the entire keyboard to be uniform.

The detailed description and technical contents of the present invention will now be described as follows:

Referring to FIG. 1 , FIG. 2 and FIG. 3-1 , the keypad of the present invention is mainly composed of a keyboard portion 1 and a plurality of light-emitting units 2 . The keyboard portion 1 includes at least one circuit board 11 and a plurality of key caps. 12 and a plurality of elastic support bodies 13 disposed between the circuit board 11 and the keycaps 12, specifically, the circuit board 11 has a plurality of keyboard command portions 111, and the key caps 12 respectively correspond to each of the keyboard command portions 111. When the keycap 12 is forced to move toward the circuit board 11, the elastic support body 13 is pressed to trigger the keyboard command portion 111 to generate an instruction, and the present invention is further defined by the key cap 12 and the elastic support body 13. A light-emitting interval D1 is emitted. In addition, the light-emitting units 2 are respectively disposed corresponding to each of the keycaps 12, and each of the light-emitting units 2 includes a light-emitting chip 21 disposed on the circuit board 11, and an encapsulation layer 22 covering the light-emitting chip 21. And a light-shielding layer 23 partially disposed on the package layer 22. The light-emitting chip 21 may further be a light-emitting diode wafer directly soldered to the circuit board 11 by surface adhesion technology. The layout of the wafer 21 can be adjusted according to the design, but is not limited to the present invention. The encapsulation layer 22 can be covered with a rubber on the luminescent wafer 21 by a one-step process. After the rubber material is cooled, the light generated by the light-emitting chip 21 is penetrated through the encapsulating layer 22, but part of the light is blocked by the light shielding layer 23 and cannot be directed to the adjacent keycap 12, thereby limiting the light to be limited only by The position where the light shielding layer 23 does not shield the encapsulation layer 22 is projected toward the light-emitting section D1. To further illustrate, the encapsulation layer 22 has a first projection surface 221 facing the corresponding keycap 12 and a second projection surface 222 facing the adjacent other keycap 12a. The light shielding layer 23 may be referred to in the present invention. The second projection surface 222 of the encapsulation layer 22 is coated or attached to the encapsulation layer 22 by chemical or physical means, so that the light cannot be projected to the other keycap 12a via the second projection surface 222. The light is projected by the first projection surface 221 that is not shielded. However, the portion covered by the light shielding layer 23 can be adjusted according to the requirement of projecting the angle of the keycap 12, in addition to the second projection surface 222. The light shielding layer 23 shields the first projection surface 221 to change the light projection angle. The light shielding layer 23 of the present invention can be made of a reflective material or an opaque material. On the other hand, in order to allow the light to be densely projected into the light-emitting section D1, the elastic support body 13 can be further made of a light guiding material. When the light-emitting unit 2 projects light into the light-emitting section D1, the light-emitting unit 2 Light is incident on the elastic support body 13 and guided by the elastic support body 13 to the keycap 12, and the light is projected from the keycap 12.

Referring to FIG. 3-1 to FIG. 3-3, the circuit board 11 may specifically include an upper film 112, a lower film 113, and a spacer film 114 disposed between the upper film 112 and the lower film 113. The upper film 112, the lower film 113, and the spacer film 114 respectively have a button line (not shown) to be connected to each other to form the keyboard command portion 111. The light emitting chip 21 of the present invention can be further disposed on the upper film. 112, one of the lower film 113 or the spacer film 114, as shown in FIG. 3-1, the light-emitting chip 21 is disposed on the upper film 112, and FIG. 3-2 is disposed on the light-emitting chip 21 In the embodiment of the spacer film 114, in the embodiment of FIG. 3-2, the upper film 112 has a first through hole 115 corresponding to the light emitting unit 2, and the first hole 115 is provided for the light emitting unit 2 to be illuminated thereto. The embodiment of FIG. 3-3 is an embodiment in which the illuminating wafer 21 is disposed on the lower layer film 113. In the embodiment of FIG. 3-3, the upper layer film 112 also has the first through hole 115. And the spacer film 114 is further corresponding to the light emitting unit The second through hole 116 is connected to the first through hole 115, so that the light emitting chip 21 can be accommodated in the first through hole 115 and the second through hole 116.

Referring to FIG. 2 and FIG. 4 , in addition to the circuit board 11 and the key cap 12 , the keyboard structure of the present invention further includes a linkage mechanism 14 and a support plate 15 . The linkage mechanism 14 supports the key cap 12 and receives the key. The cap 12 is pressed and the support plate 15 is used to carry the linkage mechanism 14. However, the keyboard has many different forms. One is as shown in FIG. 2, and the circuit board 11 is disposed above the support plate 15. 2, the circuit board 11 is disposed under the support board 15, and in the embodiment of FIG. 4, the support board 15 has a through hole 151 corresponding to the position of the light-emitting unit 2 of the circuit board 11. The light emitting unit 2 can project light through the through hole 151 to the light emitting section D1.

Referring to FIG. 1 , in order to exhibit the effect of non-uniform illumination, the keycap 12 of the present invention may further have a transparent region 121 and a non-transmissive region 122 , and the transparent region 121 may further be the key cap 12 . After the light is incident on the light-emitting interval D1, the light that is not blocked by the non-transmissive region 122 is emitted through the light-transmitting region 121. On the other hand, the vertical cross section of the encapsulation layer 22 of the present invention may be a circle or a polygon, and the so-called polygon may be the encapsulation layer 22a as shown in FIG. 5, and its vertical cross section is a triangle. In addition, there are two main types of keycaps 12 commonly used in the industry, one of which is depicted in Figure 3-1, and the other is depicted in Figure 6. The keycap 12b depicted in Figure 6 has a force. The pressing upper surface 121b has a bottom surface 122b below the upper surface 121b and a slope 123b between the upper surface 121b and the bottom surface 122b. In this embodiment, the light emitting unit 2 is the same. Light is projected onto the keycap 12b, and light is projected by the upper surface 121b, the bottom surface 122b, or the slope 123b. Further, the circuit board 11 has a reflective layer 117, which limits the light of the light-emitting unit 2 to be projected only to the light-emitting section D1, that is, the light of the light-emitting unit 2 toward the circuit board 11, The reflective layer 117 is refracted into the light-emitting section D1. Further, the circuit board 11 may be made of a transparent material, and the reflective layer 117 may be disposed by any physical or chemical method such as coating, attaching, or the like. The circuit board 11 is further disposed on the upper film 112, the lower film 113 or the spacer film 114.

In summary, the keypad of the present invention is mainly composed of a keyboard portion and a plurality of light-emitting units. The keyboard portion includes at least one circuit board having a plurality of keyboard command portions, and a plurality of keys corresponding to the keyboard command portions. a cap, and an elastic support body disposed between the circuit board and the key cap and being pressed by the key cap to trigger the keyboard command portion, and defining a light-emitting interval by the key cap and the elastic support body; Each of the light-emitting units is disposed corresponding to each of the keycaps, and each of the light-emitting units includes a light-emitting chip disposed on the circuit board, an encapsulation layer covering the light-emitting chip, and a portion disposed on the encapsulation layer to shield the light-emitting wafer from being projected to the phase The light of the adjacent key cap restricts the light to produce a bright light-shielding layer only in the light-emitting interval; thereby overcoming the problem that the conventional illuminated keyboard cannot be specifically thinned, and the brightness uniformity is limited by the light guide plate or the light guide strip, and It simplifies the process of keyboard structure and makes the keyboard structure more streamlined.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Variations and modifications are still within the scope of the patents of the present invention.

1. . . Keyboard department

11. . . Circuit board

111. . . Keyboard command department

112. . . Upper film

113. . . Lower film

114. . . Spacer film

115. . . First perforation

116. . . Second perforation

117. . . Reflective layer

12, 12a, 12b. . . keycap

121. . . Light transmissive area

121b. . . Upper surface

122. . . Non-transparent area

122b. . . Bottom

123b. . . Bevel

13. . . Elastic support

14. . . Linkage mechanism

15. . . Support plate

151. . . Through hole

2. . . Light unit

twenty one. . . Light emitting chip

22, 22a. . . Encapsulation layer

221. . . First projection surface

222. . . Second projection surface

twenty three. . . Shading layer

D1. . . Luminous interval

FIG. 1 is a schematic view showing the appearance of a first embodiment of a keyboard for emitting a keycap according to the present invention.

2 is a side elevational view of a first embodiment of a keyboard with a keycap illumination according to the present invention.

3-1 is a schematic view showing the position of a light-emitting wafer according to a first embodiment of the keyboard for emitting a keycap of the present invention.

3-2 is a schematic view showing the position of a light-emitting wafer according to a second embodiment of the keyboard of the keycap illumination of the present invention.

3-3 is a schematic view showing the position of a light-emitting wafer according to a third embodiment of the keycap illumination keyboard of the present invention.

4 is a schematic view showing a position of a light-emitting wafer according to a fourth embodiment of the keyboard of the keycap illumination of the present invention.

FIG. 5 is a side elevational view of a light emitting chip according to a fifth embodiment of the keycap light emitting keyboard of the present invention.

FIG. 6 is a schematic view showing another embodiment of a keycap of a sixth embodiment of a keycap illumination keyboard according to the present invention.

11. . . Circuit board

111. . . Keyboard command department

112. . . Upper film

113. . . Lower film

114. . . Spacer film

12, 12a. . . keycap

13. . . Elastic support

14. . . Linkage mechanism

15. . . Support plate

2. . . Light unit

twenty one. . . Light emitting chip

twenty two. . . Encapsulation layer

twenty three. . . Shading layer

D1. . . Luminous interval

Claims (15)

A keycap illuminated keyboard includes:
a keyboard portion comprising at least one circuit board having a plurality of keyboard command portions, a plurality of key caps corresponding to the keyboard command portions, and a plurality of keyboards disposed between the circuit board and the key cap and being triggered by the key caps An elastic support body of the keyboard command portion, and defining a light-emitting interval by the key cap and the elastic support body; and a plurality of light-emitting units respectively corresponding to each of the key caps, each of the light-emitting units including a light-emitting unit disposed on the circuit board The illuminating chip, an encapsulating layer covering the illuminating chip, and a portion of the illuminating film disposed on the encapsulating layer to shield the illuminating wafer from the adjacent keycaps to generate light only in the illuminating section to produce a bright opaque layer. The keycap illumination keyboard of claim 1, wherein the circuit board comprises an upper layer film, a lower layer film, and a spacer film disposed between the upper layer film and the lower layer film. The keycap illumination keyboard of claim 2, wherein the illumination unit is disposed on the upper film of the circuit board. The keycap illumination keyboard of claim 2, wherein the illumination unit is disposed on the spacer film of the circuit board, and the upper layer film has a pair of light-emitting units to be opened for the illumination unit to be accommodated therein. First perforation. The keycap illumination keyboard of claim 2, wherein the illumination unit is disposed on the lower layer film of the circuit board, and the upper layer film has a pair of first perforations disposed on the illumination unit, the spacer film Having a pair of second perforations that should be illuminated and communicated with the first perforations for receiving the illumination unit. The keycap illumination keyboard of claim 1, wherein the circuit board has a reflective layer that limits the illumination unit to only project light into the illumination interval. The keycap illumination keyboard of claim 1, wherein the light shielding layer is made of an opaque material. The keycap illumination keyboard of claim 1, wherein the light shielding layer is made of a reflective material. The keycap illumination keyboard of claim 1, wherein the encapsulation layer has a circular cross section. The keycap illumination keyboard of claim 1, wherein the encapsulation layer has a polygonal cross section. The keycap illumination keyboard of claim 1, wherein the elastic support body is made of a light guiding material. The keycap illumination keyboard of claim 1, wherein the keycap has a light transmissive area and a non-transparent area. The keycap illumination keyboard of claim 1, wherein the keyboard portion further comprises a linkage mechanism supporting the keycap and being pressed by the keycap, and a support plate carrying the linkage mechanisms. The keycap illumination keyboard of claim 13, wherein the circuit board is disposed above the support plate. The keycap illumination keyboard of claim 13, wherein the circuit board is disposed under the support plate, and the support plate has at least one pair of through holes that should be opened by the light emitting unit.