WO2011021771A2

WO2011021771A2 - Keyboard capable of multi-language input

Info

Publication number: WO2011021771A2
Application number: PCT/KR2010/004266
Authority: WO
Inventors: 이일영
Original assignee: Lee Il-Young
Priority date: 2009-08-17
Filing date: 2010-07-01
Publication date: 2011-02-24
Also published as: KR200448924Y1; WO2011021771A3

Abstract

The present disclosure relates to a keyboard that supports multi-language input, and more particularly, to a keyboard that enables the input of characters or symbols in various languages by installing a language selection program linked to a computer operating system, configuring the keyboard with one flat panel display sheet arranged at the bottom thereof, and arranging the characters of a selected language on the flat panel display of the keyboard to make the characters discernible through transparent top portions of the keycaps. For this purpose, a keyboard capable of multi-language input according to the present disclosure has a flat panel display arranged at the bottom thereof, and a thin contact circuit board configured with an upper circuit layer, an insulation layer, and a lower circuit layer which are designed so as to circumvent the central portions of each keycap, in order to enable a user to discern characters arranged on the flat panel display of the keyboard. The insulation layer is perforated at all the positions corresponding to the left and right sides at the bottom of each keycap to form contact points, a rubber dome thin film is installed to position a rubber dome on each top portion at all the positions, and an upper case is provided having keys with keycap top plates, which are made of a transparent material and contact the fingers. In particular, if the height of the keycaps is pronounced, a plastic optical fiber bundle is tightly grouped in each square block on the flat panel display at the bottom of the keyboard and installed so as to extend as high as possible, such that light for the characters or symbols displayed through the keycaps is guided through the plastic optical fiber bundles, enabling a user to discern the characters or symbols through the transparent top portions of the keycaps.

Description

Multilingual Keyboard

The present invention relates to a keyboard capable of multilingual input,

By using the flat panel display at the bottom of the keyboard where the corresponding letters or symbols are listed by a separately installed language selection program, the keyboard of the selected language is recognized through the transparent key cap of the keyboard, enabling multilingual input through a single keyboard. It is about the keyboard.

In addition, the present invention relates to a keyboard capable of multilingual input, which further includes optical fiber bundles as needed, thereby facilitating recognition of the keyboard by transmitting light directly to the key cap through the optical fiber bundles.

Until recently, input device technology used as a user interface (UI) in an electronic terminal such as a computer or a mobile communication terminal has been developed a lot, but the user is still mainly using the keyboard as an input device,

Most of them are inexperienced in using the keyboard and are typing while looking at the keycaps displaying letters or symbols, especially when entering foreign languages.

On the other hand, the keyboard is able to enter a number of characters through a single key cap to accommodate a large number of characters, for example, the case is distinguished by the "Caps Lock" key, Hangul and English "Han / English" You can enter various characters by separating them using the "key.

However, the conventional keyboard as described above is marked on the key cap so that only Korean, English, and upper and lower case letters can be distinguished, and thus, other languages not displayed on the key cap except two languages including Korean and English. There was a problem that it is very difficult to enter the characters.

In addition, since each user has a key that is frequently used for his or her taste or work, even though it is necessary to freely arrange the keys of the keyboard to suit the user, conventionally, letters or symbols have been printed on the key caps. Could only perform input corresponding to that character or symbol.

Recently, a small display device using liquid crystal display (LCD), a light emitting diode (LED), or the like is attached to a key cap to display characters or symbols, thereby displaying characters or symbols on an existing keyboard, that is, a key cap. There is provided a keyboard that can replace the keyboard that was printed.

However, the keyboard as described above was to directly install the LCD or LED on the upper portion of each key cap, to display letters or symbols on the key cap.

Therefore, there is a problem that the cost increases as each of the key caps must be provided with LCD or LED.

In addition, it is not easy to make the LCD or LED small enough to be inserted into the inside of the key cap, and thus, the manufacturing process is more complicated. There is a problem that the process becomes very complicated in production because it must be provided

The present invention has been proposed to solve the above-mentioned problems. A flat panel display interlocked by an installed language selection program is placed under the keyboard, and the keyboard of the selected language listed on the flat panel display is placed on the transparent key of the keyboard. By recognizing through a cap, it is intended to provide a keyboard capable of multilingual input through a single keyboard.

In addition, if necessary, at the position corresponding to the bottom of each key cap, an additional optical fiber bundle is attached on the flat panel display of the keyboard, thereby directly transmitting light to the key cap, thereby making the key cap recognition easier. We would like to provide a multi-lingual keyboard.

To this end, the keyboard capable of multilingual input according to the present invention includes: an upper case in which a plurality of key caps are assembled and arranged in a plurality of key caps formed of a transparent material on an upper plate contacting a finger;

Is installed below the upper case, and provided with a plurality of contacts and circuits respectively operated by the key cap on a thin film of transparent material,

A contact circuit board located at a point where each of the contacts and the circuit deviates from the underside of the key cap; And assigning blocks at positions corresponding to the lower portions of the respective key caps, and listing the keyboards on the flat panel display for each of the blocks.

A flat panel display for recognizing a keyboard through the contact circuit board and through a transparent top plate of each key cap; Characterized in that it comprises a.

At this time, it is preferable that the substrate through-hole is formed at a position corresponding to the lower portion of the key cap in the contact circuit board made of the transparent film.

In addition, if necessary, the optical fiber bundles are provided for each block of the flat panel display unit to guide the progress of the displayed light.

One end may be in close contact with the flat panel display, and the other end may include an optical fiber bundle extending through the substrate through-hole to the vicinity of the upper plate.

The contact circuit board may also include: an upper circuit board having X-axis contacts for each of the arranged key caps; A lower circuit board having Y-axis contacts for each of the arranged key caps; And inserted between the upper circuit board and the lower circuit board,

A portion of the X-axis contact and the Y-axis contact intersecting with each other such that the X-axis contact and the Y-axis contact cross each other so that a pressing operation may be performed; It is preferable to include.

The apparatus further includes a rubber dome thin film assembled between the upper case and the contact circuit board, wherein the rubber dome thin film is provided under each of the key caps and is projected upward. It is preferable that a dome is provided, and a dome through-hole is formed in the center of the rubber dome.

In addition, the rubber dome is preferably inserted into the inner portion of the key cap.

In addition, it is preferable that a sealing protrusion protrudes from the side surface of the rubber dome inserted into the inner portion of the key cap.

In addition, it is provided between the flat panel display portion and the contact circuit board, is inserted into the top of the flat panel display to support the lower end of the contact circuit board, and comprises a plurality of bridge through-holes (bridge) is formed; desirable.

Keyboard capable of multilingual input according to the present invention as described above, by using a flat panel display operated by the language selection program installed by recognizing the keyboard of the language through the transparent keycap of the keyboard, through a single keyboard Enable input of.

In addition, if necessary, light is transmitted directly to the vicinity of the keycap through the optical fiber bundle, so that the application is possible even in the case of a keyboard having a high keycap.

In addition, it is possible to prevent foreign matter from being introduced by the rubber dome thin film to prevent damage to internal parts such as a flat panel display.

1 is an exploded perspective view showing a keyboard capable of multilingual input according to a first embodiment of the present invention.

2 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a first embodiment of the present invention.

3 is a perspective view showing a key cap of a keyboard capable of multilingual input according to a first embodiment of the present invention.

4 is a perspective view illustrating a rubber dome of a keyboard capable of multilingual input according to a first embodiment of the present invention.

5 is a perspective view showing a flat bridge of a keyboard capable of multilingual input according to a first embodiment of the present invention.

6 is a front view illustrating a display unit of a keyboard capable of multilingual input according to a second embodiment of the present invention.

7 is an exploded perspective view showing a keyboard capable of multilingual input according to a second embodiment of the present invention.

8 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a second embodiment of the present invention.

9 is a perspective view showing the optical fiber bundle portion of the keyboard capable of multilingual input according to a second embodiment of the present invention.

10 is a perspective view showing a rubber dome thin film of a keyboard capable of multilingual input according to a third embodiment of the present invention.

11 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a third embodiment of the present invention.

12 is a perspective view showing a key cap of a keyboard capable of multilingual input according to a third embodiment of the present invention.

13 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a fourth embodiment of the present invention.

110: upper case

112: key cap

120: rubber dome thin film

121: rubber dome

122: through hole

130: upper circuit board

140: insulating film

150: lower circuit board

160: display unit

170: lower case

180: flat bridge

190: optical fiber bundle

191: bundle frame

192: optical fiber bundle

192a: core

192b: clad

Hereinafter, a keyboard capable of multilingual input according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a keyboard capable of multilingual input according to a first embodiment of the present invention,

2 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a first embodiment of the present invention,

3 is a perspective view showing a key cap of a keyboard capable of multilingual input according to a first embodiment of the present invention,

4 is a perspective view illustrating a rubber dome of a keyboard capable of multilingual input according to a first embodiment of the present invention,

5 is a perspective view showing a flat bridge of a keyboard capable of multilingual input according to a first embodiment of the present invention,

First, as shown in FIG.

The keyboard 100 capable of multilingual input according to the first embodiment of the present invention has an upper case in which a plurality of key caps 112 (key caps) of which the upper panel (see 112b of FIG. 2) is made of a transparent material are arranged and assembled. 110, a rubber dome thin film 120 pressed by the key cap 112, an upper circuit board 130 each made of a transparent film,

An insulating circuit 140 and a lower circuit board 150 are stacked, the

contact circuit boards

130, 140, 150 having

contacts

132, 152 pressed by the rubber dome thin film 120, and a contact circuit board ( The display unit 160 is assembled to the lower portion of the 130, 140 and 150, and the lower case 170 is assembled to the lower side of the display unit 160.

In addition, the

contacts

132 and 152 provided on the

contact circuit boards

130, 140, and 150 are located at portions away from the lower portion of the key cap 112.

Therefore, the light emitted from the display unit 160 (that is, the displayed characters or symbols) passes through a portion of the

contact circuit boards

130, 140, and 150, in which the

contacts

132 and 152 as described above are not formed. Then, it passes through the dome through hole 122 provided in the rubber dome thin film 120, and is displayed on the upper plate 112b of the key cap 112 made of a transparent material.

Therefore, when various languages are displayed on the display unit 160 by a multilingual support program installed on a PC or the like, the displayed characters or symbols are recognized through the upper panel 112b of the key cap 112 located directly above them. As a result, multiple languages can be entered through a single keyboard.

In addition, since the rubber dome thin film 120 may prevent foreign substances such as water or dust from being introduced from the outside, the display unit 160 and the display driver circuit (not shown) may be contaminated and damaged by the foreign substances. Prevent it.

Referring to Figure 2 in more detail,

The upper case 110 and the case frame 111 constituting the body,

The case frame 111 includes a plurality of key caps 112 arranged to be pressed.

In addition, the key cap 112 may be configured in various forms, but as an example, a body 112a having a hollow portion and having an open upper surface,

The hook includes a top plate 112b covering the upper surface of the open body 112a and a hook H provided inside the body 112a and protruding toward the lower rubber dome thin film 120. H) is assembled to move up and down along the guide protrusion 111a of the case frame 111.

In addition, the upper plate 112b covering the upper surface of the key cap 112 is made of a transparent material so that light can be transmitted, glass or transparent plastic may be used as the transparent material, the upper portion of the key cap 112 A key capable of recognizing a character or symbol through the plate 112b is shown in FIG. 3.

The rubber dome thin film 120 is formed of a plurality of rubber dome 121 corresponding to the key cap 112 in the flat rubber thin film, the upper side to be inserted into the key cap 112. It has a dome shape protruding toward it.

The rubber dome 121 elastically supports the hook (H) provided on the inside of the key cap 112,

When the key cap 112 is pressed, the rubber dome 121 is pressed by the hook H provided on the inner side of the key cap 112. On the contrary, the rubber dome 121 is the key cap 112 by the elastic restoring force. If you push again, the key cap 112 is returned to its original state.

4, the dome through hole 122 is formed at the center of the rubber dome 121, and the dome through hole 122 emits light emitted from the display unit 160. Pass it through. Therefore, the light transmitted through the transparent

contact circuit boards

130, 140, and 150 reaches the top plate 112b of the key cap 112.

For this purpose, the rubber dome 121 is disposed directly below the key cap 112, and thus the dome through hole 122 is also disposed directly below the key cap 112.

The rubber dome 121 is preferably assembled to be inserted into the inside of the key cap 112. When the rubber dome 121 is inserted into the inside of the key cap 112,

Prevents reaching the

contact circuit boards

130, 140, 150 and the display unit 160 at the lower part even when foreign substances such as water or dust flow through the gap between the key cap 112 and the key caps 112. do.

In addition, a sealing protrusion 123 is formed on the side of the rubber dome 121 to protrude toward the outside thereof, and the sealing protrusion 123 is in contact with the guide protrusion 111a of the case frame 111. In addition, the lower

contact circuit board

130, 140, 150 or the display unit 160 and the upper key cap 112 are blocked to further prevent foreign substances from flowing out.

However, when the sealing protrusion 123 is excessively protruding and excessively close to the guide protrusion 111a of the case frame 111, the pressing operation and the original return operation of the key cap 112 may become unnatural. The degree of protrusion of the protrusion 123 will be appropriately adjusted.

The

contact circuit boards

130, 140, and 150 receive a force from the rubber dome 121 pressed by the key cap 112, and the

contacts

132 and 152 corresponding to the key cap 112 contact with each other. Accordingly, a key input signal is provided to a central process unit (CPU) of a computer, and includes an upper circuit board 130, an insulating layer 140, and a lower circuit board 150.

In addition, each of the upper circuit board 130, the insulating layer 140, and the lower circuit board 150 may be formed of a transparent film through which light may pass, and the contact point as described above may be formed on the transparent film. 132 and 152 are provided.

Here, the wiring pattern 131 is printed in the X-axis direction on the upper circuit board 130, and the X-axis contact 132 for each key cap 112 is printed on the wiring pattern 131, respectively.

In this case, the wiring pattern 131 and the X-axis contact 132 are positioned at a point not intersecting with the bottom portion of the key cap 112, that is, at a point away from the bottom portion of the key cap 112. The light emitted from is not blocked by the wiring pattern 131 or the X-axis contact 132.

In addition, the lower circuit board 150 has printed wiring patterns 151 in the Y-axis direction, and Y-axis contacts 152 for the respective key caps 112 are printed on the wiring patterns 151, respectively. The lower circuit board 150 is also located at a point where the wiring pattern 151 and the Y-axis contact 152 deviate directly from the bottom of the key cap 112.

In addition, an insulating layer 140 of insulating material is inserted between the upper circuit board 130 and the lower circuit board 150 to prevent a short circuit between the upper circuit board 130 and the lower circuit board 150.

In addition, a through portion 141 is formed in a portion of the insulating layer 140 in which the above-described

contacts

132 and 152 are located, and thus the X-axis contact 132 of the upper circuit board 130 when the key cap 112 is pressed. And a Y-axis contact 152 of the lower circuit board 150 provides a passage that can be in contact with each other.

Accordingly, when the lower end of the rubber dome 121 presses the upper circuit board 130 as the key cap 112 is pressed by the user, the X-axis contact 132 provided on the upper circuit board 130 is formed of an insulating film ( The through-hole 141 of 140 makes contact with the Y-axis contact 152 of the lower circuit board 150, thereby causing the computer to press the key cap 112 corresponding to the intersection of the X-th row and the Y-th column. To be recognized.

In addition, the light emitted from the display unit 160 may be transmitted to the key cap 112 without being interfered by the

wiring patterns

131 and 151 or the

contacts

132 and 152. Characters or symbols provided from the display 160 may be recognized.

The display unit 160 displays a letter or a symbol to be displayed through the upper panel 112b of the key cap 112, and is installed below the

contact circuit boards

130, 140, and 150. A block of a predetermined size is designated for each position corresponding to the lower portion of 112, and different characters or symbols to be displayed on each key cap 112 are displayed for each of the designated blocks.

For example, the display unit 160 may be a flat panel display device. As a flat panel display device, various types of flat panel display devices, such as a liquid crystal display (LCD) device or an organic light emitting diode (OLED) device, may be used. Can be used.

The lower case 170 is assembled to the lower side of the display unit 160, and together with the upper case 110 as described above, forms an exterior of the keyboard, each of which is a flat bridge (see 180 of FIG. 5). It has a bridge coupler 171 is fixed (bridge).

The flat bridge 180 is selectively installed to protect the display unit 160 from an impact when the key cap 112 is pressed when the display unit 160 is a flat panel display device made of ultra-thin glass.

As shown in FIG. 5, a support frame 181 and a coupling leg 182 are included, and the support frame 181 is formed in a lattice shape so that light passes through the contact circuit board placed at the same time. 130, 140, and 150, and a coupling leg 182 is fixedly coupled to the bridge coupler 171.

Accordingly, when the flat bridge 180 is additionally installed between the display unit 160 and the

contact circuit boards

130, 140, and 150, the flat bridge 180 may have a predetermined height above the display unit 160. The lower ends of the

contact circuit boards

130, 140, and 150 are supported to be spaced apart from each other.

On the other hand, the display unit 160 has been described as an example that is a flat panel display device such as LCD or OLED.

However, the present invention may also use a light emitting diode (LED) display device 260 as shown in FIG. 6 in addition to the flat panel display device.

However, in order to use the LED, the LEDs must be arranged in a lattice shape, and be an LED matrix 262 capable of displaying various characters or symbols as if it were an advertisement board. Transmissive plate 263 on which the optical fiber bundle 190 is placed will be needed. Of course, a substrate 261 with a printed circuit for the LED matrix 262 will also be needed.

Hereinafter, the operation of the multilingual input keyboard according to the first embodiment of the present invention having the above-described configuration will be described.

First, when the key cap 112 assembled to the upper case 110 is pressed by the user, the hook H provided inside the key cap 112 is lowered together with the key cap 112.

When the hook H is lowered, the upper end of the rubber dome 121 positioned directly below the key cap 112 is pressed by the hook H, and thus the lower end of the rubber dome 121 is contact circuit board 130. , Press the upper circuit board 130 of the 140, 150.

Accordingly, the X-axis contact 132 provided on the upper circuit board 130 contacts the Y-axis contact 152 provided on the lower circuit board 150 through the penetrating portion 141 of the insulating layer 140, and corresponding key. The pressing operation signal of the cap 112 is generated, and the computer receives the pressing operation signal and performs a command corresponding to the key cap 112.

On the other hand, the rubber dome 121 having an elastic force pushes up the key cap 112 after the pressing operation by the user, and the key cap 112 has the hook H of the guide protrusion 111a of the upper case 110. Guided by), the climber stops the climb at the maximum climb point and returns to its original position.

On the other hand, in the pressing operation as described above, the present invention, the light of the letter or symbol displayed on the display unit 160 passes through the

contact circuit board

130, 140, 150 of the transparent material rubber dome 121 It progresses to the side, and passes through the dome through-hole 122 of the rubber dome 121 to reach the top plate 112b of the key cap 112.

Therefore, the user can perform the key input operation while checking the key cap 112 in which the characters or symbols of various languages are displayed.

However, various characters or symbols displayed through the display unit 160 may be provided through a multi-language support program, not shown, and use only a specific key cap 112 or specify a key cap 112 according to a user's preference. Arrangement in an array may be possible by a display driver, a CPU, or the like, but since this is a known technique, a detailed description thereof will be omitted below.

Hereinafter, a keyboard capable of multilingual input according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

While the first embodiment of the present invention described above is an example in which light is transmitted from the display unit to the key cap by using air as a medium, another embodiment of the present invention provides light from the display unit to the key cap through an optical fiber bundle. The difference is that by allowing this to be transmitted, more clear characters or symbols can be displayed on the key cap.

Therefore, hereinafter, redundant description will be omitted, and the same configuration will be described with reference to the same reference numerals.

7 is an exploded perspective view showing a keyboard capable of multilingual input according to a second embodiment of the present invention,

8 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a second embodiment of the present invention, and FIG. 9 is a perspective view showing an optical fiber bundle of a keyboard capable of multilingual input according to a second embodiment of the present invention. .

As shown in Figure 7 and 8, the multi-language input keyboard 100 according to a second embodiment of the present invention, the top panel 112b is provided with a plurality of key caps 112 made of a transparent material The upper case 110,

The rubber dome thin film 120 pressed by the key cap 112, an upper circuit board 130 each made of a transparent film, an insulating film 140, and a lower circuit board 150 are laminated, and a contact point ( Contact

circuit boards

130, 140, 150 having 132, 152;

Supports the display unit 160 assembled under the

contact circuit boards

130, 140, 150, the lower case 170 assembled under the display unit 160, and the

contact circuit boards

130, 140, 150. It includes a flat bridge 180 to.

In addition, the

contacts

132 and 152 provided on the

contact circuit boards

At this time, the second embodiment of the present invention is installed in addition to the above configuration from the top of the display unit 160 to the lower portion of the key cap 112, the optical fiber bundle 190 to guide the progress of light It includes more.

The optical fiber bundle 190 transmits light so that letters or symbols displayed on the display unit 160 are displayed through the top panel 112b of the key cap 112.

As can be seen more clearly through FIG. 9, a bundle frame 191 and an optical fiber bundle 192 bundled by the bundle frame 191 are included.

The optical fiber bundle 190 may be particularly useful when the height of the key cap 112 is high, and the key cap 112 for the notebook or the key cap 112 for the Apple computer is low because the height is described above. As in the first embodiment of the present invention, even if the optical fiber bundle portion 190 is not included separately, it is possible to sufficiently display letters or symbols.

On the other hand, each optical fiber constituting the optical fiber bundle 192 is composed of a core 192a (core) through which the light is guided and a clad 192b (clad) surrounding the core 192a, so that light through each optical fiber To be delivered.

And, the optical fiber bundle unit 190 is provided for each block of the display unit 160, so that the characters or symbols displayed for each block of the display unit 160 are displayed on the key cap 112 located above the respective blocks. Be sure to

In particular, the present invention is one end of the optical fiber bundle 192 toward the upper side of the display unit 160, the other end of the substrate through-holes (133, 142, 153) and the rubber dome of the contact circuit board (130, 140, 150) It is installed upright so as to reach the upper plate 112b of the key cap 112 through the dome through hole 122 of 121.

Therefore, the character identification light emitted from the display unit 160 is directly transmitted to the upper portion through the core 192a so that the characters or symbols having high luminance and resolution can be displayed on the key cap 112.

Furthermore, in order to install the optical fiber bundle 190 as described above,

The present invention provides a substrate through hole through which the optical fiber bundle 192 penetrates the

contact circuit boards

130, 140, and 150, in which the upper circuit board 130, the insulating film 140, and the lower circuit board 150 are integrally stacked. 133, 142, and 153, which are located directly under the key cap 112.

Accordingly, the optical fiber bundle 192 disposed on the upper surface of the display unit 160 is provided in the center of the rubber through dome 121 and the substrate through

holes

133, 142, 153 of the

contact circuit boards

130, 140, 150. Pass through the dome through hole 122 in order to be able to be installed to reach the top plate (112b) of the key cap (112).

However, the substrate through

holes

133, 142, and 153 as described above may not only be used for the purpose of installing the optical fiber bundle 190, but may also be used to facilitate the progress of light.

That is, the substrate through

holes

133, 142, and 153 may be provided even in the first embodiment of the present invention, which does not include the optical fiber bundle 190, so that the light emitted from the display 160 is keyed. The cap 112 is more propagated more smoothly, so that the letters or symbols displayed on the key cap 112 can be made clearer.

Hereinafter, a keyboard capable of multilingual input according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

The third embodiment of the present invention can reduce the device cost by enabling multilingual support using a more simplified structure than the first and second embodiments described above.

10 is a perspective view showing a rubber dome thin film of a keyboard capable of multilingual input according to a third embodiment of the present invention;

11 is a partial cross-sectional view showing a keyboard capable of multilingual input according to a third embodiment of the present invention,

As shown in FIG. 10, the rubber dome 221 of the multi-language input keyboard according to the third embodiment of the present invention is one of the rubber dome 121 in the above-described first or second embodiment. Compared with the dome through-hole 122 formed at the center, two rubber domes 221 spaced apart from each other are provided in pairs, and a thin film through part 222 is provided between the rubber domes 221.

Therefore, the light emitted from the display unit (see 260 of FIG. 11) reaches the key cap (see 212 of FIG. 11) through the thin film penetrating unit 222, whereby a letter or symbol is displayed through the corresponding key cap 212. Make it recognizable.

In particular, as the configuration of the rubber dome 221 becomes simpler, the width of the thin-film penetrating portion 222 also naturally widens, so that the size of the characters or symbols displayed through the corresponding key cap 212 can be increased. have.

On the other hand, as the shape of the rubber dome 221 becomes simple as described above, the shape of the upper case in which a plurality of key caps 212 are arranged and assembled also changes.

That is, as shown in Figure 11, the third embodiment of the present invention is the top plate 212b of the key cap 212 is made of a transparent material, such as glass, the bottom of the body 212a of the key cap 212 Has a pressing portion at a position corresponding to the pair of rubber domes 221.

Instead, it does not require a separate hook (H) like the first embodiment or the second embodiment.

However, as shown in FIG. 12, the body 212a of the key cap 212 may further include an incision line 212c cut along the height direction thereof, which is independent of only the key cap 212. When the replacement is to easily cut a portion of the body (212a) through the incision line (212c) and then remove the key cap (212).

In addition, the case frame 211 is provided with a guide protrusion (211a) at its distal end, the longitudinal section of the guide projection (211a) abuts the body (212a) of the key cap 212, the key cap 212 Guides the ascent and descent, as well as limits the maximum ascent height.

In addition, the

contact circuit boards

230, 240, 250, the display unit 260, and the lower case 270 are the same as or similar to the first and second embodiments described above, and thus a detailed description thereof is omitted. do.

Hereinafter, a keyboard capable of multilingual input according to a fourth embodiment of the present invention will be described with reference to the accompanying drawings.

The fourth embodiment of the present invention is different in that the optical fiber bundle is further included in the configuration of the third embodiment.

As shown in FIG. 13, the multi-language input keyboard according to the fourth embodiment of the present invention has an optical fiber bundle 290 installed on an upper surface of the display unit 260, and the optical fiber bundle includes a key cap ( It extends to the height of the pressed state of 212).

Accordingly, the characters or symbols displayed through the key cap 212 may be more bright and clear.

The specific embodiments of the present invention have been described above.

However, the spirit and scope of the present invention is not limited to these specific embodiments, and various modifications and variations can be made without departing from the spirit of the present invention. Those who have it will understand.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art to which the present invention pertains, it should be understood as illustrative and not limiting in all respects. The invention is only defined by the scope of the claims.

The multilingual input keyboard of the present invention enables multilingual input through a single keyboard. In addition, a single flat panel display can be used to produce a cost-competitive multilingual input keyboard.

And, in addition to the function of the language selection program, you can program to select and adjust the color, brightness, font, character size, etc. of the flat panel display keyboard, and the user can define and use the function for each key. Do.

In addition, brightness and resolution are increased to facilitate key recognition. In addition, it is possible to prevent the foreign substances from flowing in to prevent the internal circuits such as the display unit from being damaged.

Therefore, the keyboard can be used for various purposes and purposes, and the convergence of electronic products incorporating various functions in one device is accelerated.

Claims

In the keyboard which can input multilingual,

An upper case having a plurality of key caps assembled and arranged on the upper plate contacting the finger with a transparent material; Is installed in the lower portion of the upper case,

A plurality of contact points each of which is operated by the key cap on the transparent film,

A contact circuit board located at a point where each contact point is deviated from a lower portion of the upper plate directly; And installed in the lower portion of the contact circuit board,

By designating a block for each position corresponding to the lower part of each key cap and displaying a letter or symbol for each block, the displayed light passes through the contact circuit board and is formed through the upper plate of each key cap. And a display unit for recognizing a symbol.

The display unit is a flat panel display device,

The contact circuit board includes: an upper circuit board having an X-axis contact for each of the arranged key caps;

A lower circuit board having Y-axis contacts for each of the arranged key caps; And inserted between the upper circuit board and the lower circuit board,

The portion where the X-axis contact and the Y-axis contact cross each other includes an open insulating film so that the X-axis contact and the Y-axis contact may contact each other to distinguish a key cap in which a pressing operation is performed.

A rubber dome thin film is provided between the upper case and the contact circuit board.

The rubber dome thin film includes a rubber dome which is provided at each of the lower portions of the key caps and protrudes upward and is pressed by the body of the key cap, and has a through hole formed at the center of the rubber dome. The keyboard which is available for multilingual input.
The method of claim 1,

It guides the progress of the light displayed on the display unit, and are provided for each block of the display unit,

And an optical fiber bundle extending at one end toward an upper surface of the display unit and the other end extending through the substrate through-hole to the upper plate.
The method of claim 1,

The side of the rubber dome is a keyboard capable of multi-lingual input, characterized in that the protrusion for sealing (sealing) is formed protruding.
The method of claim 1,

A planar bridge, which is installed between the display unit and the contact circuit board, supports a lower end of the contact circuit board in a fixed state on the upper side of the display unit, and has a plurality of bridge through holes formed therein. A keyboard capable of multilingual input, characterized in that.