TWI269333B - Keyboard with backlight framework - Google Patents

Abstract

A kind of keyboard with backlight framework, which employs a light guiding space formed by a bridging plate and a bottom plate beneath the keyboard section to perform light reflection on the bridging plate for the light entering the light guiding space from a light guiding section installed in the light guiding space to the corresponding to-be-light-emitted keyboard section so that light is emitted from the keyboard section. Therefore, a low cost design is achieved, which can concentrate light to be shown on the keyboard and prevent from undesired whole keyboard light-emitting shortcoming.

Description

1269333 IX. Description of the Invention: [Technical Fields of the Invention] > This is a type of keyboard having a light structure, in particular, a backlight structure for emitting a light source to a keyboard portion under the keyboard portion. [Prior Art] Whether it is a desktop computer 'laptop' notebook computer, or a network television, the disk is convenient for tapping in a low-brightness or dark environment. The key-iU ' has been issued a variety of illuminated keyboard patents, such as the United States Qing Jia 8, 6, 199996 '6554442, 6179432, Taiwan Bulletin No. 5, 9955, 465777, 5〇9955, 535385, 438035, 570235, side 33, 516671 No., there is a use of a built-in illuminating sheet to shoot out the light source, so that the user can clearly determine the keyboard tap position. However, in the above-mentioned various patent technical documents, it is possible to find out the common points. In each patent technology = document towel, there is a demand for _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ And the linkage mechanism to = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The aircraft m is difficult to see in the age, more sturdy, dark, such as the secret, the car above the 9 degree environment, but the entire keyboard is illuminated, which will affect other people around, and low here; A & + Hu is too strong and too low, if ~Μ, the system is difficult to see the visual ability to fall = the symbol is made of opaque material, or the key will be due to the light source between the adjacent keycaps The difficulty of the interference effect, the unfamiliarity can not be a true nostalgia - ~ Easy output error command signal. The 4 key towel to the person who pays the number will often produce a tapping error and the content of the invention is to avoid the existence of the missing. The present invention is a backlighting system that avoids the lack of illumination of the entire keyboard through the backlight 2 First, the light source formed by the bridge plate and the bottom plate under the keyboard portion transmits a space of 5 1269333, so that the light-conducting space entering the light source is guided by the bridge plate corresponding to the light source disposed on the keyboard portion. The part is refracted to the keyboard bile, so that the actual range of the light source to be emitted by the keyboard part can be effectively limited according to the design position and size of the light guiding part. Another object of the present invention is that the light guiding portion can be integrally formed and molded with the bridge plate, and the bridge plate or the bottom plate can be provided with a refractive surface to enhance the brightness effect of the light source, thereby reducing the design of the light source component. Reduce backlight architecture costs. [Embodiment] The detailed description and technical contents of the present invention will now be described as follows:

Please refer to the description of "B, 2, and 3-2". As shown in the figure, the present invention is a keyboard 1G with a backlight structure, and the composition of the keyboard 1G is made up of a top-down package. The part= is composed of a plurality of buttons (4), and the button u includes a surface having a symbol iu^ key 1 111 and providing a linkage mechanism for the keycap 111 to press the displacement stroke. The linkage mechanism 112 is a scissors-type linkage mechanism. A bridge board 12 is provided to provide a pressing position of the keyboard portion 101 relative to the bridge board n; a signal sensing component 13 is disposed under the ==, the signal triggering component 13 includes a triggering member r32. The hard portion m presses the rotating circuit board (3) 12 π w-14 ' between the output signal and the bridge (4), the bottom plate 14 m is a source conduction space 2G, and at the source of the bridge plate 12 (for example, symbol mi), the space 2 is led to the light source 121, so that The light guiding portion 121 receives the guide 3〇1 1〇1 - a ^ 3-2 101 and can further be provided with the polygon shown in Fig. 4, and the light guide absorbs or increases the refractive index of the light source outside the light guiding portion (2). The light-emitting portion 122, if the set or the light source is turned out to the fiber portion 101, it; πΤ^ 111 ππ allows the user It can be clearly identified that mtfr can be designed for the town or is transparent so that the light source emits ^ π ; ΐί! ill 6 1269333 both let the single-key cap (1) emit light, while the area between the key cap lu and the key cap (1) is not produced: The source of the county can be over-bright and there is a slap in the mouth of the Zhejiang. The light guide (2) design system can be extended to the bottom plate 14, in addition to providing the light source refraction effect. The board 12 achieves a stable fixed position. In addition, as shown in the "5th to 5th", since the present invention provides a light source conduction space 2, the / rabbit light source 3a, 30b will not need to be provided with a full-chip light-emitting element, as shown in the figure The light source 30a is disposed on the peripheral side of the keyboard unit 101, or as shown in FIG. 5-2. The light source 3〇b is disposed under the keyboard unit 101 and arranged in a sheet-like light-emitting device. The conductive space 20 can be connected, and the light source can be connected to a power switch μ to the outside of the disk 10 to enhance the reflection effect of the light source 3〇a, 3〇b. The brightness of the light source conducting space 20 is effectively brightened by using at least one side of the bottom surface of the bridge plate 12 and the bottom surface 14 of the guiding space 20 as a light source refractive surface (if the ten-black circuit board 131 is disposed in the light source) The space 20 is located on the bottom surface of the light source conduction space 2, the surface of the board 12 and the surface of the circuit board (3), at least one side is a light source refractive surface; or the touch element is connected to a film board (MYLAR), and the film board Is disposed in the light conduction space of the light source, and is located The bottom surface of the bridge plate 12 of the light source conducting space 20 and the surface of the film plate, at least the surface is the refracting surface of the light source, so that the light source 3Ga, 3Gb can enter the light source conducting space 2Q and effectively pass through the light source to fold and increase the brightness of the emitting surface; 30a, 30b have sufficient brightness, and in order to avoid external light may be stunned or avoid the interference of the light source in the light-conducting space 2〇, the bottom surface and the bottom plate of the bridge 12 of the light source conduction space 20 may be located at: The surface of the 14 is an opaque shielding surface, and the emission light source 30a in the county source conduction space 20 ensures that only the light guiding portion 121 emits a light source to the keyboard portion ι〇. In summary, only Linfa _ is better than the actual, and the scope of implementation of Newlin invention. That is, equivalent changes and modifications constituting the scope of the patent application of the present invention should be the technical scope of the present invention. ^ 7 1269333 [Simplified illustration of the drawings] Fig. 1 is a perspective view showing the appearance of the keyboard of the present invention, and Fig. 2 is a schematic view showing the partial structure of the keyboard of the present invention. Figure 3-1 is a schematic view of the keyboard of the present invention. Figure 2 is a partial enlarged view of Figure 3-1. Figure 4 is a schematic view of another embodiment of the present invention - Figures 5-1 and 5-2 are schematic diagrams of the light source of the present invention. Description] 10 .............Keyboard 101.............Keyboard section 11..................

111........ • · · · · Keycap 1111............. Symbol 112........ ..... Linkage mechanism 12.. ...... ..... bridge plate 121........ ..... light guide 122..............lighting section 123.. ...... ...... Photosensitive layer 13........ ..... Signal touch component 131........ ...... circuit board 132. .............Touching parts 14................ Base plate 20............... Light source conducting spaces 30a, 30b ..... .....light source 31........ ..... power switch 8

Claims (1)

1269333 X. Patent application scope: 1· - A keyboard with backlight switch, read-keyboard section, which is composed of a plurality of buttons 'this: upper-: and includes: a cap and a keycap and a key provided The cap pressing displacement surface has a symbol key-bridge, which is used for the linkage mechanism to be connected to the other mechanism, the signal actuation component is pressed against the bridge plate; the touch signal of the road board output signal; the hair plate and the Pressed by the keyboard portion to touch the electric light source conduction space, and the bottom plate and the bridge plate define a space to be provided with at least a light guiding portion, and the guiding light source is introduced into the keyboard portion to form a backlight structure of the keyboard. Emission in the L-workroom 2. If the application is fine, except for the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Medium-dip source correction The bottom surface of the bridge and the bottom surface of the bridge are opaque shielding surfaces. v 4. As shown in the patent application item i, the keyboard with the back wire structure, wherein the circuit is transmitted, is located at the bottom surface of the bridge of the light guide, and at least one side is the light source refractive surface.峪 表 表 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 键盘 5 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 键盘 MY MY MY MY MY In the bottom surface of the bridge plate and the surface of the film plate of the source conduction space, at least the surface is the light source refraction 6·=Please turn the second, third, fourth or fifth position to have the backlight, and the other 4 light parts The terminal is further provided with a collection of light source and a light source. 7. The light-emitting portion has a photosensitive layer as described in claim 2, 3, 4 or 5 of the keyboard having a backlight structure. t, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , /, 9·If the keyboard of the backlight structure described in the scope of patent application 〖, 2, 3, 4 or 5, 9 1269333, the light guide follows _繊__ 1 "patent patent _ 丨, 2, 3, 4 or 5, wherein the alpha-light emitting light source is disposed under the keyboard portion and located in the light-conducting space of the light source. [11] as disclosed in the patent specification, the first embodiment has a backlight structure. a keyboard, wherein the light source is disposed in the light source conduction space by the sheet-like light-emitting member. The keyboard of the backlight structure according to the above-mentioned claim, wherein the light source is capable of connecting a power switch to the keyboard Outside the keyboard. 10