KR20120017387A - Input and output multi device - Google Patents

Abstract

PURPOSE: An input and output device is provided to increase an area of an input and output part by forming a light source, which irradiates an end part of a light guide sheet with light, at a lower part of a PCB. CONSTITUTION: A light guide sheet(G2) includes a bent part(GB). A relay unit transfers a touch state of a light guide sheet pattern to a PCB. A selection lighting device lights a specific light source from light sources(L1,L2). Light in the selection lighting device exposes only a specific light guide sheet or a specific pattern in a selection exposing device. The light source is included at a lower part of the PCB to irradiate an end portion of a bent part with the light.

Description

Input-output device {INPUT AND OUTPUT MULTI DEVICE}

The present invention relates to an input-output device,

More specifically, an end portion of the waveguide sheet, in which a pattern for input or output of data is formed, forms a bent portion and is directed downward through the PCB side end, and the light is irradiated to the end of the waveguide sheet so that the pattern of the waveguide sheet appears. The light source is located underneath the PCB,

When configuring the input-output device using the same case and the light source, the area of the input unit or output unit for input or output of data may be significantly increased compared to a conventional device having a light source on the PCB.

In addition, light sources for stacking a plurality of waveguide sheets and irradiating a pattern of each waveguide sheet can display only a specific waveguide sheet or a specific pattern by means of selective lighting means and selection display means, so that input (output) or output (output) of data can be performed. It is possible to implement a variety of simple modes

The present invention relates to an input-output device that can be applied to various fields such as a remote controller, an input of a cooking utensil, a guide kiosk, and the like.

A key input device which is a typical input device and applied to a mobile phone or a remote controller is a device for inputting a user's command signal to the electronic device.

Due to the rapid development of electronic communication technology, various electronic devices are being developed and released, and the electronic devices have various functions.

The remote controller Rp, which is a kind of input device, shown in FIG. 1A is a simplified illustration of Utility Model Registration No. 0438645, "Convertible keypad package using waveguide sheet," which is incorporated in the case R1. The waveguide sheets G1 and G2 are formed on the upper portion of the PCB R2, and the light sources L1 and L2 provided at both ends of the upper portion of the PCB R2 are irradiated with light from the waveguide sheets G1 and G2. Allow the pattern of waveguide sheet to emerge.

In such a conventional remote controller (Rp) there is a blank zone (blank zone) that can not be utilized as an input unit (IP) for data input,

First, both sides of the area for the attaching means R3a (using various double-sided adhesive members) for the combination of the case R1 and the overlay sheet (or window) R3 (that is, the bezel area) The first blank zone Z1 of is generated.

A second blank zone Z2 is also generated due to the light source L1 and L2 and the first light shielding bracket SB1 that prevents light from the light source from being irradiated to other parts than the waveguide sheets G1 and G2.

In addition, the third blank zone Z3 is generated because the luminance is too high due to a hot spot phenomenon in the region adjacent to the light sources L1 and L2, and thus is not suitable to form an input unit (or an output unit in various output devices such as a kiosk). .

In addition, when the waveguide sheet is introduced into two layers (or three or more layers) with respect to the third blank zone Z3 to form a multi-input unit, the light source of the waveguide sheets G1 and G2 is formed. The second light shielding bracket SB2 is introduced to prevent the light of the light source from leaking out and wasting at the opposite end. Since the light source of each waveguide sheet layer is arranged in a staggered position for a compact arrangement, a hot spot The third blank zone Z3 overlaps with the second light blocking bracket SB2 or further extends due to the second light blocking bracket.

Since the first to third blank zones Z1, Z2, and Z3 are configured to reduce the area of the effective input unit IP or the effective output unit in the input or output device.

As it is one of the biggest obstacles to the development of products that want to maximize the area of effective input or effective output while securing compact products with a tendency to light and short, it is urgently needed to solve them.

On the other hand, in the key input device of the electronic device, the number of keys increases by various functions,

The number of keys is increasing in order to secure input keys for operating various electronic devices (for a remote controller) or for implementing various functions using a single key input device.

For example, mobile phones initially had only a simple voice call function, but now have SMS services, camera functions, DMB functions, navigation functions, etc., and the number of keys is increasing to use each function. Qwerty keyboards are also being introduced into mobile phones.

In addition, in the case of a remote controller, the number of keys is increasing so that one can operate various household appliances such as TV, VTR, DVD, refrigerator, and air conditioner.

As the number of input buttons (or input keys or input elements) increases in various input devices as described above, a plurality of keys are displayed on one button of a key input device in order to implement them in a limited area.

It has been used to change the mode as needed.

However, simply increasing the number of buttons increases the size of the input device, which does not meet the tendency of miniaturization for portability of electronic products and causes an increase in manufacturing cost.

In addition, displaying a plurality of input functions on a single button requires attention of the user's operation, and the size of the displayed key decreases, reducing the user's cognition and causing eye fatigue.

In order to solve the problem, Utility Model Registration No. 0438645 "Convertible keypad package using waveguide sheet" has been presented.

 In the utility model described above, the first waveguide sheet G1 on which the numeric pattern is printed and the second waveguide sheet G2 on which the character pattern is printed are laminated, as shown in FIG. Between the first waveguide sheet and the second waveguide sheet by interposing a semi-transparent film (T) to selectively block the number or letter pattern, so that only the pattern provided on the waveguide sheet to which light is incident is displayed to the outside,

When the user selects a function or an electronic device to be used in the key input device (remote controller Rp), a specific light source L1 (L2) is turned on and light is incident on the corresponding waveguide sheet so that a required pattern (ie, key) is applied. Only the outside is shown.

Therefore, the utility model can display more keys larger using fewer buttons.

However, the utility model has a problem that the pattern displayed on the button is not clear and dark (or dim), and that the pattern displayed on the button is slightly overlapped with other patterns.

This problem is due to the laminated structure of the two waveguide sheets and the translucent film used to prevent the interference between the laminated waveguide sheets.

When the first waveguide sheet G1, the translucent film T, and the second waveguide sheet G2 are stacked in order from the bottom to the top of the key top (overlay sheet R3) provided with a plurality of buttons. ,

Since the two waveguide sheets are stacked, the pattern of the first waveguide sheet and the pattern of the second waveguide sheet overlap each other under one button, and the light incident on the first waveguide sheet is reflected from the pattern and transmitted upward. The light is transmitted through the translucent film and the second waveguide sheet and is displayed on the button of the key top (overlay sheet R3).

In this case, the translucent film T blocks a part of the light incident from the first waveguide sheet G1 and transmits the light, thereby reducing the amount of light reaching the button of the key top, thereby darkening the pattern.

The light reflected from the pattern (character pattern) of the first waveguide sheet is not transmitted only upward straight, but is refracted and diffused and transmitted while passing through the first waveguide sheet and the translucent film (number pattern). In the area that is not superimposed on the pattern of the second waveguide sheet in, a small amount of diffused light flows in, but the letter pattern of the first waveguide sheet is clearly displayed on the key top button, and the second waveguide sheet is faintly numbered on the second waveguide sheet. Overlaid.

When the light is incident on the second waveguide sheet, the light is not blocked by the translucent film so that the number pattern of the second waveguide sheet is clearly displayed on the key top button, but a part of the incident light is applied to the translucent film and the first waveguide sheet. Since the incident light is incident on the character pattern, the key pattern has a problem in that the character pattern is overlaid on the numeric pattern.

In addition, since the input pattern of the product commercialized product based on the registered utility model is limited by the number of laminated waveguide sheets, the sheet is limited to two or at most three sheets to ensure clear visibility. The pattern is also limited to two or three,

More complex and unsuitable for implementing input-output devices for input and output of a variety of information.

The number of waveguide sheets stacked in this way is limited, and thus the situation in which the implementation of more various input (or output) modes is limited is also possible in the light source provided on each side of the waveguide sheet G1 (G2), that is, on the PCB R2. Since the height of L1 and L2 is significantly higher than that of the waveguide sheet, when the light source is arranged for each waveguide sheet when the three or more layers are introduced, the height of the device increases accordingly, and thus development of a product having purchasing power and marketability becomes practically impossible.

Accordingly, the present invention is the end of the waveguide sheet, the pattern for the input or output of the data is formed bent toward the bottom past the PCB side end, and the light is irradiated to the end of the waveguide sheet so that the pattern of the waveguide sheet appears Since the light source is provided in the lower part of the PCB, and when the input-output device is configured using the same case and the light source, a blank device inevitably occurs due to the overlay sheet attaching means, the light source and the light blocking bracket (the light source on the PCB It is an object of the present invention to provide a PCB lower light irradiation type input-output device in which the area of an input part or an output part for input or output of data can be significantly increased.

Another object of the present invention is to provide a matrix-type multi-input-output device that is more complex and capable of inputting and receiving a variety of information, which makes it more convenient for a user to input or obtain necessary information.

Furthermore, in the present invention, light sources for irradiating patterns formed on a plurality of waveguide sheets forming a multi-layer can display only a specific waveguide sheet or a specific pattern by a selection lighting means and a selection display means, so that input (output) or output (output) of data is possible. The purpose of the present invention is to provide a matrix-type multi-input-output device that can be applied to various fields such as a remote controller, an input of a cooking utensil, a guide kiosk, and the like.

In addition, according to the present invention, a specific light source is turned on by the selective lighting means so that only a specific pattern, rather than the entire pattern of the waveguide sheet of one layer, can be displayed. It is an object to provide a device.

It is another object of the present invention to provide a matrix type multi-input-output device implemented in such a way that the selection lighting means operates a specific pattern element of the present pattern in the present stage so that the pattern of the next stage appears.

In order to achieve the above object, the PCC lower light irradiation type input-output device according to the present invention

PCB;

A waveguide sheet in which a pattern for input or output of data is formed and an end portion of which is bent toward the bottom of the PCB;

Relay means for transmitting the touch state of the waveguide sheet pattern to the PCB;

A light source provided under the PCB to irradiate light to an end portion of the bent portion of the waveguide sheet; And

A case accommodating a PCB, a waveguide sheet, a relay means, and a light source;

It is made, including.

In the PCC lower light irradiation input-output device according to the present invention, the bent portion of the PCB preferably includes a vertical first bent portion at the PCB side end and a horizontal second bent portion bent toward the inside of the PCB side end.

Furthermore, the matrix type multi-input-output device according to the present invention

A plurality of waveguide sheets in which a pattern for input or output of data is formed;

A plurality of light sources for irradiating light to cause the pattern of the waveguide sheet to appear;

Selection lighting means for lighting a specific light source of the light sources; And

Sorting and display means for causing the light of the light source to be turned on by the selective lighting means to display only a specific waveguide sheet or a specific pattern;

It is made, including.

In the matrix type multi-input-output device according to the present invention

A part or all of the waveguide sheet is provided with a plurality of light sources, and the light source which is turned on by the selective lighting means causes one waveguide sheet to exhibit some patterns,

Furthermore, the selective lighting means turns on a specific light source by contact of the pattern portion exhibited by the light source,

In addition, the screening means is arranged on top of each waveguide sheet, the light shielding sheet having a light-transmitting portion of the shape corresponding to the shape of the pattern of each waveguide sheet is superimposed,

The light transmitting portion of the light shielding sheet positioned on the upper portion preferably has a third pattern having a shape overlapping the first pattern of the waveguide sheet and the second pattern of the waveguide sheet disposed on the lower portion.

On the other hand, the screening means may alternatively be a diffusion prevention sheet arranged between the upper and lower waveguide sheets to suppress the amount of light so that the light source for irradiating one waveguide sheet does not irradiate the other waveguide sheet.

In the input-output device according to the present invention, the end of the waveguide sheet, in which a pattern for input or output of data is formed, forms a bent portion and is directed downward through the PCB side end, so that the pattern of the waveguide sheet is exposed. Since the light source for irradiating the light is provided in the lower part of the PCB, when configuring the input-output device using the same case and the light source, the blank device inevitably occurs due to the overlay sheet attachment means, the light source and the light shielding bracket Compared to the form of a light source on the upper part of the PCB, the area of an input part or an output part for input or output of data may be significantly increased, and light sources for irradiating patterns formed on a plurality of waveguide sheets forming a multilayer may be selectively turned on. Means only a specific waveguide sheet or a specific pattern Since it is possible to make the input (input) or output (output) mode of data simple and various, it can be applied to various fields such as remote controller, cooking utensil input unit, guide kiosk, and the like. The specific light source is turned on so that only a specific pattern, rather than the entire pattern of the waveguide sheet of one layer, can be displayed. Thus, a multi-channel input unit or output unit can be realized. By manipulating the pattern element, the pattern of the next step is realized so that the input and output of a more complex and various information is possible, so that the user can input or obtain necessary information more conveniently.

FIG. 1A is a schematic cross-sectional view of a conventional PCX top light-emitting input device, and FIG. 1B is a schematic cross-sectional view of a PCC bottom light-emitting input device according to the present invention.
2 is a cross-sectional view showing an example of a keypad type input device based on a matrix type multi input device according to the present invention;
3 is an exploded perspective view related to the laminated structure of the matrix type multi-input device according to the present invention;
4 is a matrix of multi-channels (9 channels) related to a combination example of the present patterns in which a specific light source is illuminated by a specific light source by a selective lighting means in relation to a multi-input device of a matrix type according to the present invention. Conceptual diagram for.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the present specification, the first to the second, the third to the third, and the like are referred to to distinguish the different components, and are not limited to the manufactured order, and the detailed description and claims of the present invention. The names may not match in the scope.

First, as can be seen in FIG. 1 [B] schematically illustrating a remote controller R corresponding to an input device among the PCC lower light irradiation type input-output devices according to the present invention,

In the present invention, the PCB R2 is arranged in the case R1, and a waveguide sheet and an overlay sheet R3 (or window) having a pattern formed thereon are provided.

As described below with reference to FIGS. 2 and 3, when the waveguide sheet is provided in plural in order to implement an input unit (or output unit) in various modes,

While only a specific waveguide sheet or a specific pattern is displayed according to the operation of the selection lighting means of the light sources L1 and L2,

Screening means, in particular a waveguide sheet composite layer laminated with screening means for preventing the light of a light source which is turned on for the appearance of a specific pattern of one waveguide sheet from reaching another waveguide sheet or an unintended appearance of the same waveguide sheet. Corresponds to GC1) (GC2).

In addition, the upper portion of the PCB (R2) the metal dome and actuator (see FIG. 2 and related below) or capacitance for transmitting a touch state of the waveguide sheet pattern, that is, pressurization or contact of the overlay sheet (R3) to the PCB (R2) It further includes a relay means such as an sensitized or resistive (or pressure sensitive) touch sensor (for convenience only the PCB and not the relay means).

Between the ends of the overlay sheet R3 (or the usual window) and the case R1 constituting the input unit IP unique to the remote controller R for protecting the built-in parts of the case R1 and for operation of a TV. An adhesive means R3a, such as a double-sided tape, is provided between the upper steps for accommodating the two components so that the two components can be combined.

One of the cores of the present invention is that the waveguide sheet has a bent portion (GB), the end of which is directed toward the bottom of the PCB (R2), the light source is also arranged below the PCB (R2) end of the waveguide sheet, In particular, the light for irradiating the waveguide sheet pattern to the bent end is irradiated.

These features are applied to both the case where the waveguide sheet is provided with one or more layers,

In the case where two or more waveguide sheets are introduced, the waveguide sheet composite layer (GC1) (GC2) itself, in which a light shielding sheet, which is a screening means for exposing only the pattern of one waveguide sheet, is formed, forms a bent portion or a waveguide other than the light shielding sheet. Only the sheet can constitute the bent portion.

Furthermore, as can be seen in FIG. 1B, the bent portion GB of the PCB R2 is a vertical first bent portion GB1 of the PCB side end and a horizontal second bend bent toward the inside of the PCB side end. It includes a part GB2.

Here, the meanings of the 'vertical' direction and the 'horizontal' direction do not mean strictly vertical and horizontal, but the bent portion and the light source (L1) where the end of the waveguide sheet or the waveguide sheet composite layer wraps the PCB side ends, respectively. (L2) This is the expression chosen to simplify the bend inwardly towards the inside of the PCB side for ease of installation and implementation of a relatively thinner input device.

The light source (L1) (L2), especially small size, light weight, low heat generation, reflection configuration, high-speed response characteristics, pulse operation characteristics, light output control characteristics due to the current characteristics of the LED light source recently received attention due to the type and design and Considering the ease of installation, heat dissipation, etc.

The bent portion of the waveguide sheet or the waveguide sheet composite layer is provided with only the first vertical bending portion GB1 (in this case, the light source may be installed on the lower step of the case R1),

(B) the light source may be fixed to the light blocking and fixing bracket SB1 or to the bottom plate of the case R1 (not shown).

A third bent portion (not shown) may be further provided extending from the second bent portion and bent toward the bottom of the PCB (the light source may be fixed to the PCB R2).

Unlike FIG. 1A, the light blocking bracket SB1 on the light source L1 and L2 side supports a light source for fixing the light source, and the light blocking bracket SB2 opposite to the light source SB2 (see FIG. 1A). May be omitted (considering the light shielding characteristics of the waveguide sheet composite layer in which the light shielding sheet is laminated) or may be replaced by coating the end of the waveguide sheet with a black layer or the like instead of the light shielding bracket.

As described above, the conventional remote controller Rp of FIG. 1A has a first blank zone Z1 due to the attachment means R3a, a second blank zone Z2 due to the light source, and a hot spot of the light source. While the third blank zone Z3 is generated due to the spot phenomenon avoidance and the shading bracket SB2, the effective input area IP loss is large.

In the present invention of FIG. 1B, since only the first blank zone Z1 is generated, an effective input unit (IP) area of at least 15 mm can be additionally secured in the case of a remote controller, thereby ensuring ease and design of a light and short product. It can greatly contribute to the elimination of restrictions.

In addition, by adopting the concept of the PCC lower light irradiation type input-output device according to the present invention, it is possible to provide a product in which the shape of the overlay sheet R3 is curved rather than flat.

In addition, the case (R1) for accommodating the PCB, the waveguide sheet, the relay means, and the light source is also deformed so that the shape of the input-output device itself is not a regular rod type having a rectangular cross section, but an elliptical column type, a cylinder type, a semi-cylindrical type, etc. It is possible to realize a product having a variety of designs.

3 and 2, a matrix type multi-input-output device concept will be described with reference to the input-output device D according to the present invention.

Such a matrix type multi-input-output device includes a plurality of light sources for irradiating light such that a plurality of waveguide sheets G1, G2, and G3, and a pattern Gp of the waveguide sheet are displayed, and a specific light source among the light sources. Selective lighting means for lighting the light, and the selection light emitting means for causing the light of the light source to display only a specific waveguide sheet or a specific pattern.

The concept of the input-output device according to the present invention allows a stepwise menu selection such as a membrane switch (a type of input device), a vending machine, etc., for an input device for selecting a cooking step mode of a microwave oven or other cooking utensils. It can be applied to a selection button panel (input device), a remote controller (input device) for various home electronic devices such as a TV, and a kiosk (output device) for gradual guiding a building area such as a complex shopping mall.

FIG. 2 is a schematic cross-sectional view of a keypad-type input device D constructed by applying the concept of a matrix-type multi-input-output device according to the present invention.

In FIG. 2, the keypad type input device 1 includes a frame 6,

A key top 2 coupled to the case so that a button pressed by a user with a finger is exposed to the outside, a PCB 5 provided with a contact point (not shown),

A metal dome (3) coupled to the PCB (5) to be disposed above the contact point and having elasticity;

[The waveguide sheet + sorting means + light source (not shown) stacked assembly (D)], which is a multi-input-output device of the present invention, interposed between the metal dome (3) and the key top (2),

Keypad type input device (1) It comprises an actuator (4) provided on the upper surface of the metal dome (3).

In the keypad type input device 1 configured as described above, when the user presses the button of the keytop 2, the device D, which is a laminated assembly disposed below the device, descends, presses and lowers the actuator 4, The metal dome 3 descends by the actuator 4 and contacts the contacts of the PCB 5 to input a user's operation signal.

When the external force that the user presses disappears, the metal dome 3 and the device D are returned to their initial state by the elastic restoring force.

Hereinafter, the keypad-type input device of the input-output device D according to the present invention will be described with reference to the drawings. However, the present invention is not limited thereto, and the protection scope of the present invention is limited to the description. Can not be done.

As shown in FIG. 3, an input-output device, in particular an input device, and more specifically a keypad-type input device according to the present invention, may be implemented in multiple (multichannel (9 channel) implementations in FIGS. 2 and 3). The waveguide sheets G1, G2, and G3 of three sheets), and the sorting and display means S on the upper portion of each waveguide sheet are provided, and the black sheet B is laminated and combined at the lowermost portion.

In addition, some or all of the waveguide sheets G1, G2, and G3 are provided with a plurality of light sources for emitting the formed pattern Gp (in FIG. 3, a plurality of light sources are provided for each waveguide sheet).

In detail, the LED is excellent in small size, light weight, low heat generation, reflection configuration, high-speed response characteristic, pulse operable characteristic, light output control characteristic by current, and more specifically, a plurality of LEDs for each waveguide sheet. Each of the waveguide sheets (shown as provided in two staggered positions) (L1a, L1b) (L2a, L2b) (L12, L2b) is provided in accordance with the shortening tendency. In FIG. 3, for convenience, an LED, which is a light source, is provided on the side of the waveguide sheet.

The waveguide sheet (G1, G2, G3) is made of a material with high transparency such as PC, PE, PET, PU, PMMA, glass, etc., the light source metering type LED (L1a, L1b) (L2a, L2b) (L12, L2b The light emitted from the beam is transmitted to the opposite side. The waveguide sheets G1, G2, and G3 form the waveguide sheet composite layers GC1, GC2, and GC3 together with the light shielding sheet S, which is a selective display means described later.

In addition, some or all of the light sources may be shaped to emit light having different wavelengths.

The key top 2 (referred to as the overlay sheet R3 in FIG. 1) is lowered by the pressing force pressed by the user, and has a ductility and elasticity so as to be restored to an initial state after the pressing force disappears (or a touch pad method). In the case of introducing a capacitive sensitive or resistive (or pressure sensitive) touch sensor, the signal is transmitted in response to the user's touch, and various other known signals for transmitting the touch state of the waveguide sheet pattern to the PCB. Delivery relay means may be introduced).

Further, the pattern Gp is provided on one surface of each of the waveguide sheets G1, G2, and G3. The pattern Gp means numbers, letters, symbols, etc.

Symbols displayed by the pattern Gp are letters, Arabic numerals (0 to 9), and Arabic numerals (eg, one, two, three,…) (for example, one, two, three,…) one, two, three,…), or other forms of symbolic symbols, numbers or letters, or a combination thereof, as promised in accordance with custom or individual purpose.

The pattern Gp may be formed by printing, in particular, screen printing ink on a surface of the waveguide sheets G1, G2, and G3 having diffusion type reflective properties.

The pattern Gp may be formed by etching the surface of the waveguide sheets G1, G2, and G3 in addition to the screen printing method, or by forming dots on the surface of the waveguide sheets G1, G2 and G3 in various ways. It may be formed.

As such, the pattern Gp may be formed in various ways. The patterns Gp, which are displayed on the surface of the key top 2 and recognized by the user, may be different from the patterns Gp, which display similar functions, with the patterns Gp. In order to improve the user's recognition of the pattern (Gp), the patterns (Gp) can be screen-printed with ink of a material that reflects light of a specific wavelength for each function so that the transparent pattern and color pattern can be implemented. have.

Next, the selection lighting means is to turn on a specific light source among the light sources, and in FIG. 2, the keypad type input device 1 includes a switch SW provided on the side of the frame 6.

Further, the selective lighting means may be implemented in the form of turning on a specific light source by the contact of the pattern portion exhibited by the light source.

That is, the selection lighting means may be implemented in such a manner that the pattern of the next step is revealed by manipulating (pressing or touching) a specific pattern element of the present pattern of the present step.

When explaining the embodiment of such a selection lighting means, if the cooking menu selection button of the microwave oven is configured based on the present invention, if the frozen rice cake is used to finally select the rice cake menu

First, by using the switch SW provided on the side of the frame 6 of FIG.

When the thawing button of the first channel is pressed, another light source is turned on

When the menu button set corresponding to the second channel emits light, pressing the rice cake button of the second channel causes another light source to light up.

The menu button set corresponding to the third channel emits light, and when the rice cake button of the third channel is pressed, another light source is turned on.

The menu button set corresponding to the fourth channel is emitted, and the crispness of the fourth channel (grilled rice cake-cooking degree-) is crispy (grilled depending on the degree of roasting) Configurable to make a split selection)

It is possible to implement a matrix-type multi-membrane switch that allows the microwave oven to operate.

Next, the selective display means serves to cause the light of the light source to be turned on by the selective lighting means to display only a specific waveguide sheet or a specific pattern.

The selective display means shown in FIGS. 2 and 3 is provided between the waveguide sheet G1 of the first layer and the waveguide sheet G2 of the second layer, and the waveguide sheet G2 of the second layer and the waveguide sheet of the third layer. It is provided in the form of a light shielding sheet (S) provided between (G3),

When some or all of the light sources L1a, L1b, L2a, L2b, L12, L2b for each waveguide sheet are turned on, the light amount of the light source serves to reduce the amount of light so that the pattern Gp of the other waveguide sheet does not appear. .

To this end, the light shielding sheet S corresponds to the pattern Gp of each of the waveguide sheets G1, G2, and G3, and the light transmitting portions S1c and S2c of the shape corresponding to the overlapping patterns of the waveguide sheets. (S3c).

As can be seen in FIG. 3, the patterns Gp of the waveguide sheets G1 (G2) and G3 are different from each other, and accordingly, the light transmitting portions S1c, S2c, and S3c of the light blocking sheets S are different. The shape is also different.

However, unlike the pattern Gp of the second waveguide sheet G2, the light transmitting portion S2c of the second light blocking sheet S is different.

It is a shape which overlapped the pattern Gp of the 1st and 2nd waveguide sheet G1 (G2),

The light transmitting portion S3c of the third light blocking sheet S is different from the pattern Gp of the third waveguide sheet G3.

The pattern Gp of the first, second, and third waveguide sheets G1, G2, and G3 is superimposed.

Alternatively, the light of each light source L1a, L1b, L2a, L2b, L12, L2b does not affect the pattern Gp of the waveguide sheet other than the waveguide sheets G1, G2, and G3. Screening means

As shown in the left dashed line circle in FIG.

It may be implemented by the diffusion barrier sheet Sp provided between the first and second waveguide sheets G1 and G2 and in the second and third waveguide sheets G2 and G3.

The diffusion prevention sheet Sp is opaque or translucent or is processed to transmit only light of a specific wavelength band so as to reduce or shield the amount of light so that the light of the light source for one waveguide sheet does not exhibit the pattern Gp of the other waveguide sheet. Play a role.

Furthermore, the selective display means partitions partitioning an area of each waveguide sheet so that light of one or a part of a plurality of light sources provided in one waveguide sheet G1, G2, or G3 emits only a pattern of a predetermined area. Can be.

Such a partition is a printed layer (e.g., cuts the waveguide sheet arranged in one layer and introduces the printed layer on its cut surface), a processed portion, etc. (formed in a vertical direction) provided in each waveguide sheet.

It is a partition provided on the top of the waveguide sheet,

It may be a printed layer or a processing unit introduced into the film provided on the upper or lower portion of the waveguide sheet, or both.

Alternatively, the selective display means may be a pattern consisting of a light source for irradiating light of a specific wavelength band and an ink for reacting to light of the light source of the specific wavelength band.

2 and 3 again, the light blocking sheet S constituting the selective display means will be described.

In the light shielding sheet S, light flowing into the light shielding sheet from the waveguide sheets G1, G2, and G3 provided at a lower portion thereof is transmitted upward only through the light transmitting portion 25, and a region other than the light transmitting portion 25. Light entering into the building blocks the

2 and 3, three light blocking sheets S are arranged on each of the three stacked waveguide sheets G1, G2, and G3, and a lower surface of the first waveguide sheet G1 at the lowermost portion. The black sheet B is provided.

Each light shielding sheet S reflects not only the pattern Gp provided by its waveguide sheets G1, G2, and G3, but also the pattern Gp provided in the other waveguide sheets disposed below it. The light is also discharged upward through the light transmitting parts S1c, S2c, and S3c, and the light incident to the area outside the light transmitting parts S1c, S2c, and S3c is blocked, and finally the button of the key top 2 is closed. Leaked into

Appearance patterns (P1a, P1b) (P2a, P2b) (P3a, P3b) displayed to the user are clearly displayed and there is no deformation.

In addition, the light shielding sheet S prevents light incident on the waveguide sheets G3 and G2 of the upper portion from flowing into the lower waveguide sheets G2 and G1 of the lower portion, so that the pattern Gp is applied to the button of the key top 2. Do not overlap other patterns Gp.

For example, without the light shielding sheet S, when the light source L3a, L3b (L2a, L2b) disposed on the side of the upper waveguide sheet G3 is turned on, the light of (L3a, L3b) (L2a, L2b) is turned on. Is mostly incident on the upper waveguide sheet (G3) (G2), but some light is directly introduced into the lower waveguide sheet (G2) (G1) or the lower waveguide through the refracting, diffusion action in the upper waveguide sheet (G3) (G2). The light may flow into the sheets G2 and G1, and the light flowing into the lower waveguide sheets G2 and G1 may be reflected by the pattern Gp of the lower waveguide sheets G2 and G1 to be transmitted upward. However, with the light shielding sheet S, light from the light sources L3a and L3b (L2a and L2b) can only flow into the upper waveguide sheets G3 and G2 and directly into the lower waveguide sheets G2 and G1. Can't flow in.

In addition, the light introduced into the upper waveguide sheet (G3) (G2) is blocked and extinguished by the selective display means (S), even if refracting or diffusing action, hardly flows into the lower waveguide sheet (G2) (G1), very part Although it may be introduced into the lower waveguide sheet (G2) (G1) through the light transmitting part (S2c) (S1c), even if the incoming light is difficult to reach the pattern (Gp) considering the inflow direction, even if the pattern (Gp) It is hard to be reflected and transmitted to the light transmitting parts S2c and S1c again.

On the other hand, the light shielding sheet (S) has a transparent layer (S1b) (S2b) (S3b) and a printed layer (S1a) (S2a) (S3a), respectively,

The transparent layers S1b, S2b, and S3b are made of a transparent material so as to transmit incident light thereon, and the transparent material may be PC, PE, PET, PU, PMMA, glass, or the like.

The transparent layers S1b, S2b, and S3b may be transparent films made of a transparent material, and may be formed by UV molding a liquid transparent synthetic resin on the surface of the waveguide sheets G1, G2, and G3.

The printed layers S1a, S2a, and S3a are printed on the entire surface of the transparent layer S1b except for the light-transmitting portion 25, and the printed layers S1a, S2c, and S3c are excluded. It is desirable to print in black or achromatic color to completely block the light.

The light transmitting parts S1c, S2c, and S3c are formed at the correct positions on the surfaces of the transparent layers S1b, S2b, and S3b. However, the transparent layers S1b, S2b, and S3b adhere the black film provided with the light-transmitting portion 25 to form the printed layers S1a, S2a, and S3a. The layers S1a, S2a and S3a may be formed. In other words, the print layer may not be necessarily formed in a printing manner by being named as the print layer.

The sorting and display means S disposed at the top thereof is exposed and comes into contact with the key top 2, which also serves as a protective layer.

Therefore, the sorting and display means (S) disposed at the uppermost portion is in contact with the key top (2) by placing the transparent layer (S3b) on the upper portion and the printing layer (S3a) on the lower portion so that the printing layer (S3a) is not exposed. It is desirable not to scratch or deform the shape of the light transmitting portion.

The black sheet B is disposed under the first waveguide sheet G1 so that light emitted from the light source and introduced into the waveguide sheet G1 does not flow out to the lower portion of the waveguide sheet G1. The electronic device mounted on the PCB prevents light from being irradiated, and the patterns Gp disposed on the upper part and the shape of the light transmitting part can be more clearly seen.

The black sheet (B) is also composed of a transparent layer (B2) and a printing layer (B1), like a light transmitting sheet, the light transmitting portion is not provided. In other words, the entirety of one surface of the transparent layer B2 is printed in black.

The transparent layer B2 of the black sheet B may also be formed by adhering the transparent film to the lower surface of the waveguide sheet G1 or by UV molding a liquid transparent synthetic resin on the lower surface of the waveguide sheet G1. The printing layer B2 may also be formed by printing black ink on one surface of the transparent layer B1 or by attaching a black film to one surface of the transparent layer.

As described above, the multi-input-output device D according to the present invention may have various forms and combinations, as shown in the conceptual diagram of FIG. 4.

By a specific lighting means (by stepwise selection as necessary), a specific light source may be turned on to have a matrix of emerging patterns that appear by irradiating a specific pattern of the waveguide sheet,

2 and 3, examples of combinations of the present patterns P1a and P1b (P2a and P2b) (P3a and P3b) of the multi-input-output device D can be identified based on FIGS. 2 and 3. .

In the above description, although the conventionally known techniques related to the multi-input-output device and the like are omitted, those skilled in the art can easily infer, infer, and reproduce the same.

In addition, in the above description of the present invention, the multi-input-output device having a specific shape and structure has been described with reference to the accompanying drawings. However, the present invention can be variously modified, changed, and replaced by those skilled in the art. And substitutions should be interpreted as falling within the protection scope of the present invention.

D: Input-output device G1, G2, G3: Waveguide sheet
GC1, GC2, GC3: Waveguide sheet composite layer GB, GB1, GB2: Bend section
Gp: Pattern P1a, P1b, P2a, P2b, P3a, P3b: Appearance Pattern
L1, L2, L1a, L1b, L2a, L2b, L3a, L3b: light source
SW: Selective lighting means
S: Light shielding sheet S1a, S2a, S3a: Light shielding layer
S1b, S2b, S3b: Transparent layer S1c, S2c, S3c: Light transmitting part
Sp: Diffusion Prevention Sheet
1: Keypad type input device 2: Keytop
3: metal dome 4: actuator
5: PCB 6: frame
R: Remote Controller R1: Case
R2: PCB R3: Overlay Sheet
SB1, SB2: Shading bracket Z1, Z2, Z3: Blank zone

Claims (9)

PCB;
A waveguide sheet in which a pattern for input or output of data is formed and an end portion of which is bent toward the bottom of the PCB;
Relay means for transmitting the touch state of the waveguide sheet pattern to the PCB;
A light source provided under the PCB to irradiate light to an end portion of the bent portion of the waveguide sheet; And
A case accommodating a PCB, a waveguide sheet, a relay means, and a light source;
Input-output device made, including. The method of claim 1,
The bent portion of the PCB input-output device, characterized in that it comprises a vertical first bent portion of the PCB side end, and a horizontal second bend bent toward the inside of the PCB side end. The method according to claim 1 or 2,
The waveguide sheet and the light source are each plural,
Selection lighting means for lighting a specific light source of the light sources; And
Sorting and display means for causing the light of the light source to be turned on by the selective lighting means to display only a specific waveguide sheet or a specific pattern;
The input-output device made further comprising. A plurality of waveguide sheets in which a pattern for input or output of data is formed;
A plurality of light sources for irradiating light to cause the pattern of the waveguide sheet to appear;
Selection lighting means for lighting a specific light source of the light sources; And
Sorting and display means for causing the light of the light source to be turned on by the selective lighting means to display only a specific waveguide sheet or a specific pattern;
Input-output device made, including. The method according to claim 3 or 4,
Part or all of the waveguide sheet is provided with a plurality of light sources for irradiating one waveguide sheet,
And a light source which is turned on by the selection lighting means causes a portion of the waveguide sheet to exhibit a pattern. The method according to claim 3 or 4,
And the selective lighting means turns on a specific light source by contact of a pattern portion exhibited by the light source. The method according to claim 3 or 4,
The sorting display means
An input-output device arranged on top of each waveguide sheet, wherein the pattern of each waveguide sheet is a light shielding sheet having a light-transmitting section having a shape corresponding to an overlapping shape. The method of claim 7, wherein
The light-transmitting portion of the light-shielding sheet positioned on the upper portion has a third pattern of the shape overlapping the first pattern of the waveguide sheet and the second pattern of the waveguide sheet located below. The method according to claim 3 or 4,
The sorting display means
An input-output device, characterized in that the diffusion prevention sheet arranged between the upper and lower waveguide sheets to suppress the amount of light to prevent the light source for irradiating one waveguide sheet from irradiating the other waveguide sheet.

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