KR20130009221A - Convenient input device equipped with touch pad - Google Patents

Abstract

PURPOSE: An input device with a touch pad in which convenience is increased is provided to prevent a color spreading phenomenon and a color invading phenomenon. CONSTITUTION: A supporting means(Bu) elastically supports a touch pad. A pressure operation input means(Dp) is arranged in a lower unit in the supporting means. The pressure operation input means includes a sensing member(W). The sensing member senses the displacement of the supporting means. The supporting means includes an elastic member.

Description

CONVENIENT INPUT DEVICE EQUIPPED WITH TOUCH PAD}

The present invention relates to an input device,

More specifically, in order to improve the usability of a touch pad provided on a touch pad, particularly a notebook, a pressure operation input means separately provided under the touch pad is introduced in addition to a touch recognition function of the touch pad, To an input device that can be supplemented.

Further, in the present invention, when an input device using a waveguide sheet is employed and a multi-color light emission input unit is to be introduced in order to realize a composite input device by constructing another input means other than a touch pad, In order to solve the problem that the color of a specific pattern invades different pattern areas due to lighting of a light source when a heterogeneous color pattern is provided,

By forming one pattern on one surface of a waveguide sheet (LGF, Light Guide Film) and arranging a translucent heterogeneous color pattern on the other surface of the waveguide sheet, a variety of input / output information can be secured while enhancing visibility, So that there is no blurring and no color invasion phenomenon.

The present invention also provides a waveguide sheet in which a pattern for input or output of data forms an end portion of a waveguide sheet to form a bent portion and is directed downward through an end portion of the PCB, The light source to be irradiated is provided under the PCB,

When an input device is constructed using the same case and a light source, the area of an input or output portion for input or output of data can be significantly increased as compared with a conventional device having a light source on a PCB,

Further, the light sources for arranging the plurality of waveguide sheets in plural layers and irradiating the pattern of each waveguide sheet can emit only a specific waveguide sheet or a specific pattern by the selective lighting means and the screening developing means, It is possible to implement simple and various modes

A remote controller, an input unit of a cookware, and an interior kiosk.

A key input device, which is a representative input device and is applied to a mobile phone or a remote controller, is a device for inputting a command signal of a user to the electronic device.

Various electronic devices have been developed and released due to the rapid development of electronic communication technology, and functions of electronic devices are becoming diversified.

In addition to being well received in terms of portability, in addition to the performance of a desktop PC, a variety of input devices, including a keyboard, have been proposed. Among them, the touchpad employed as a substitute for a mouse requires a mouse If you do not have it, you can handle it well, but generally it is generally evaluated as inconvenient compared to a mouse.

One of the functions of the touch pad TP of the notebook N shown in a perspective view in the upper part of Fig. 1 is to touch and pull the touch pad TP with the left button D1 pressed The user drags the finger until it reaches the target position and finally releases the drag button when the user has finished dragging the selected part to the target position. At this time, if you click the button corresponding to the Enter key (usually the left button (D1)) to perform the enter function, the touch state is easily released, and you must use both hands It is also common for malfunctions to occur with both hands.

Therefore, a solution is needed.

The remote controller Rp, which is a type of input device shown in Fig. 3 [A], is a simplified version of the utility model registration No. 0438645 "conversion-type keypad package using a waveguide sheet" The waveguide sheets G1 and G2 are formed on the upper part of the PCB R2 and the light sources L1 and L2 provided on both sides of the upper part of the PCB R2 receive light from the waveguide sheets G1 and G2. So that the pattern of the waveguide sheet is exposed.

In this conventional remote controller Rp, there is a blank zone which can not be utilized as an input unit IP for data input,

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

The second blank zone Z2 is also generated by the light source L1 (L2) and the first light blocking bracket SB1 which prevents the light from the light source from being irradiated to other parts than the waveguide sheets G1 and G2.

The third blank zone Z3 is generated because the luminance is excessively high due to a hot spot phenomenon in the adjacent region of the light sources L1 and L2 so that it is not suitable for forming an input unit (or an output unit in various output devices such as a kiosk) .

Further, in the case of constructing the multi-input section by introducing the waveguide sheet into two layers (or three or more layers) as shown in Fig. 3 (A) in conjunction with the third blank zone Z3, The second light blocking bracket SB2 is introduced to prevent the light from the light source from flowing out and being wasted at the opposite end. Since the light sources of the respective waveguide sheet layers are arranged at staggered positions for a compact arrangement structure, The third blank zone Z3 for avoiding the phenomenon is overlapped with the second light blocking bracket SB2 or the area is further enlarged due to the second light blocking bracket.

The first through third blank zones Z1, Z2, and Z3 are factors that reduce the area of the effective input unit IP or the effective output unit in constructing the input or output device

It is one of the biggest obstacles to development of a product that maximizes the effective input area or the effective output area while securing a compact product with a light and simple shortening tendency.

Also, a schematic partial enlarged view is shown in each of four pairs of one-dot chain line circles on the left and right at the center of a schematic sectional view of the input device or the output device of FIG. A light guide film (LGF) G is arranged on a lower PCB (not shown), and the details will be described later.

As shown in each upper dots-and-dash line (a structure corresponding to the object to be improved, but not a known technique) among the one-dot chain line pairs connected by the one-dot chain line in Fig. 2,

The inventors of the present invention attempted to arrange all of the translucent heterogeneous color patterns (Gp) (Cp1, Cp2) on one surface of the waveguide sheet in an attempt to secure diversity of output information,

As a result of lighting the light source, it has been found that the color of a specific pattern invades another pattern region, resulting in a problem that the visibility is deteriorated.

In the case where the pattern color of the waveguide sheet G is not clear and is relatively thin, it has been confirmed that color blurring or color invasion can be reduced while adopting a heterogeneous color pattern. However, in this case, It becomes a problem again.

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

The number of keys is increasing in order to operate various electronic devices with a single key input device (in the case of a remote controller) or to secure an input key for implementing various functions.

For example, in the early days of a mobile phone, there was only a simple voice call function, but now the SMS service, the camera function, the DMB function, and the navigation function are provided so that the number of keys is increased to use each function, (Qwerty) keyboard which is implemented in mobile phone.

In the case of a remote controller, the number of keys has been increased to operate various household appliances such as a TV set, a VTR, a DVD, a refrigerator, and an air conditioner.

As the number of input buttons (or input keys or input devices) increases in such various input devices, conventionally, a plurality of keys are displayed on one button of the key input device,

We have been using a method to change the mode as needed.

However, such a simple method of increasing the number of buttons increases the size of the input device, which does not fit with the tendency to miniaturize for the portability of electronic products, and causes an increase in manufacturing cost.

In addition, displaying a plurality of input functions on a single button requires the user's attention to the operation, and the size of the displayed key is reduced, thereby lowering the cognitive power of the user and causing eye fatigue.

In order to solve the problem as described above, a utility model registration No. 0438645 entitled " Conversion type keypad package using a waveguide sheet "has been proposed.

 As shown in simplified form in Fig. 3 (A), the above-mentioned registration utility model laminates a first waveguide sheet G1 on which a numeric pattern is printed and a second waveguide sheet G2 on which a character pattern is printed, Only a pattern provided on a waveguide sheet on which light is incident is displayed externally through a semi-transparent film (T) interposed between the one waveguide sheet and the second waveguide sheet for selectively blocking numerical or character patterns,

When a user selects a function or an electronic device to be used in the key input device (remote controller Rp), the specific light source L1 (L2) is turned on and light is incident on the corresponding waveguide sheet, Are displayed externally.

Therefore, the registration utility model can display a larger number of keys by using fewer buttons.

However, the above-mentioned registration utility model has a problem that the pattern displayed on the button is displayed unclearly and darkly (or dimly), and that the displayed pattern is slightly overlapped with another pattern.

This problem is caused by the semi-transparent film used for preventing the interference between the laminated structure of the two waveguide sheets and the laminated waveguide sheet.

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

The pattern of the first waveguide sheet and the pattern of the second waveguide sheet are superimposed and disposed under one button. Of course, the light incident on the first waveguide sheet is reflected by the pattern and transmitted to the upper portion, Is transmitted through the translucent film and the second waveguide sheet and is exposed to the button of the key top (overlay sheet R3).

At this time, since the translucent film T shields and transmits a part of the light incident on the first waveguide sheet G1, the amount of light reaching the button of the key top decreases,

Since the light reflected from the pattern (character pattern) of the first waveguide sheet is not transmitted only to the upper portion in a straight line but is refracted and diffused while passing through the first waveguide sheet or translucent film, The diffused light enters the area of the second waveguide sheet that is not overlapped with the pattern of the second waveguide sheet so that the character pattern of the first waveguide sheet is clearly displayed on the keytop button and the numerical pattern of the second waveguide is faintly displayed thereon Are superimposed and displayed.

When the light is incident on the second waveguide sheet, there is no blocking of light by the translucent film, so that the numerical pattern of the second waveguide sheet is clearly displayed on the keytop button. However, since a part of the incident light is reflected by the translucent film and the first waveguide sheet There is a problem that the character pattern is superimposed on the numeric pattern on the keytop button in a superimposed manner.

In addition, the input pattern of a product commercialized based on the registered utility model is limited by the number of laminated waveguide sheets, so that the number of sheets is limited to two or three for the purpose of ensuring clear visibility, The pattern is also limited to two or three,

It is not suitable for implementing an input device for inputting and outputting a more complicated and various information.

The situation in which the number of stacked waveguide sheets is limited and thus the implementation of a wider variety of input (or output) modes is restricted is also the case where the light source provided on the side of each waveguide sheet G1 (G2) Since the heights of the waveguides L1 and L2 are significantly higher than that of the waveguide sheet, the height of the device increases as the waveguide sheet is arranged for each waveguide sheet.

In order to improve the usability of a touch pad provided on a touch pad, particularly a notebook, the present invention introduces a pressure operation input means separately provided under the touch pad in addition to a touch recognition function of the touch pad, And to provide an input device that can be supplemented.

In addition, in the present invention, in order to realize a composite input device (a notebook also has a composite input means) by constituting another input means other than a touch pad, for example, an input device using a waveguide sheet is constituted, It is possible to form a pattern on one surface of a waveguide sheet (LGF, Light Guide Film), to arrange a transparent translucent color pattern at the other surface of the waveguide sheet, thereby securing diversity of input / output information while enhancing visibility, And it is an object of the present invention to provide an input device capable of preventing color blurring and color invasion even when a pattern is adopted.

In the meantime, according to the present invention, an end portion of a waveguide sheet on which a pattern for inputting or outputting data is formed forms a bending portion, is directed downward through an end portion of the PCB, and the waveguide sheet end is irradiated with light A conventional device in which a blank zone is inevitably generated due to an overlay sheet attaching means, a light source, and a light-shielding bracket (a light source is provided on a PCB, The present invention is intended to provide an input device or output section for input or output of data, which can significantly increase the area of the input device or output section of the data.

Another object of the present invention is to provide a matrix-type multi-input device capable of inputting and outputting a variety of information in a more complicated manner and allowing the user to input or obtain necessary information more conveniently.

Further, according to the present invention, the light sources irradiating the patterns formed on the plurality of waveguide sheets constituting the multilayer can emit only a specific waveguide sheet or a specific pattern by the selective lighting means and the sorting and developing means, The present invention is intended to provide a matrix type multi-input device that can be applied to various fields such as a remote controller, an input unit of a cooker, an interior kiosk, and the like.

Further, according to the present invention, since a specific light source is turned on by the selective lighting means, not a whole pattern of a waveguide sheet but only a specific pattern can be developed, so that a multi-input device of a matrix type capable of implementing a multi- The purpose is to provide.

Another object of the present invention is to provide a multi-input device of a matrix type which is implemented in such a manner that the selective lighting means is capable of manipulating a specific pattern element of the present-emergence pattern so that the next-step pattern is generated.

In order to achieve the above object, an input device provided with a touch pad having improved usability according to the present invention.

Touchpad;

Supporting means for elastically supporting the touch pad; And

Pressure operating input means provided below the supporting means and including a sensing member for sensing a displacement of the supporting means;

.

In addition, in the input device having a touch pad with improved ease of use according to the present invention

The support means includes an elastic member,

The supporting means includes a scissors type support for evenly transmitting the displacement of the touch pad,

Further PCB; A patterned waveguide sheet for input or output of data; A waveguide sheet in which a pattern for input or output of data is formed and which has a bent portion whose end is directed downward of the PCB; A light source for irradiating light so that a pattern of the waveguide sheet is developed; And a light shielding sheet having a light transmitting portion in which a pattern corresponding to a pattern and a color pattern of the waveguide sheet is inverted,

Wherein the input unit comprises: a plurality of waveguide sheets and a plurality of light sources, respectively, wherein the plurality of waveguide sheets and the plurality of light sources are provided in the input unit, And a screening and developing means for allowing the screen to be displayed on the screen.

Meanwhile, an input device according to the present invention for implementing a composite input device by introducing an input section constituted of a waveguide sheet in which a colored pattern is formed so that a multi-

Light source; And

A waveguide sheet in which a pattern is formed on one surface by light irradiation of the light source and light transmissive heterogeneous color patterns are arranged on the other surface;

It is made, including.

Further, the input device according to the present invention

Wherein the transmissive color pattern is formed on the other surface of the waveguide sheet,

Further comprising a light-shielding sheet having a light-transmitting portion in which a pattern corresponding to a pattern and a color pattern of the waveguide sheet is inverted, the light-transmitting color pattern being formed in a light-

Wherein the waveguide sheet has a bending portion that passes through a side surface of the PCB and exposes a side end portion of the waveguide sheet to the light source,

The bent portion of the PCB includes a first vertical bent portion at a PCB side end and a second horizontal bent portion bent toward a PCB inner side,

A plurality of waveguide sheets and a plurality of light sources, each of the waveguide sheets including a plurality of light sources, wherein the waveguide sheet includes a plurality of light sources, It is preferable to further include means.

On the other hand, the input device according to the present invention

A patterned waveguide sheet for input or output of data;

A light source for irradiating light so that a pattern of the waveguide sheet is developed; And

And a light shielding sheet having a light transmitting portion in which a pattern corresponding to a pattern and a color pattern of the waveguide sheet is reversed,

A plurality of waveguide sheets and a plurality of light sources, each of the waveguide sheets including a plurality of light sources, wherein the waveguide sheet includes a plurality of light sources, Further comprising:

A part of or all of the waveguide sheet is provided with a plurality of light sources for irradiating one waveguide sheet and a light source turned on by the selective lighting means preferably emits a part of the pattern of one waveguide sheet.

Further, the PCB lower light-tuning type input device according to the present invention

PCB;

A waveguide sheet in which a pattern for input or output of data is formed and which has a bent portion whose end is directed downward of the PCB;

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

A light source provided at a lower portion of the PCB to irradiate light at a bent end portion of the waveguide sheet; And

A PCB, a waveguide sheet, a relay means, a case for receiving a light source;

.

In the PCB lower optical waveguide type input device according to the present invention, the bent portion of the PCB may include a first vertical bent portion on the PCB side end and a second horizontal bent portion bent toward the PCB inner side.

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

A plurality of waveguide sheets formed with patterns for input or output of data;

A plurality of light sources for irradiating light so that a pattern of the waveguide sheet is developed;

A selective lighting means for lighting a specific one of the light sources; And

Selecting means for causing the light of the light source turned on by the selective lighting means to emit only a specific waveguide sheet or a specific pattern;

.

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

Wherein a part of or all of the waveguide sheet is provided with a plurality of light sources, and the light source turned on by the selective lighting means causes a part of the pattern of the waveguide sheet to be developed,

Further, the selective lighting means illuminates a specific light source by contact with a pattern portion developed by the light source,

The screening and developing means is a light shielding sheet arranged on each of the waveguide sheets and having a light transmitting portion having a shape corresponding to a pattern in which patterns of the waveguide sheets are overlapped,

It is preferable that the light-transmitting portion of the light-shielding sheet located on the upper side has a third pattern in which the first pattern of the waveguide sheet and the second pattern of the waveguide sheet located below are overlapped.

On the other hand, the sorting and advancing means may alternatively be a diffusion preventing sheet arranged between the upper and lower waveguide sheets so as to suppress the amount of light so that the light source for irradiation of one waveguide sheet can not irradiate the other waveguide sheet.

The input device having a touch pad having improved usability according to the present invention is provided separately under the touch pad in addition to the touch recognition function of the touch pad to improve the convenience of the touch pad, especially the touch pad provided in the notebook. By introducing a pressure-actuated input means, it is possible to supplement a drag function.

In addition, in order to realize a composite input device (a notebook also has a composite input means) by constituting another input means other than the touch pad, for example, an input device using a waveguide sheet is constituted and further introduced into a multi- The input device of the present invention forms one pattern on one side of a LGF (Light Guide Film), arranges a translucent heterogeneous color pattern at the other side of the waveguide sheet to increase the visibility while securing diversity of input / output information, It is possible to prevent color blurring and color invasion even if a pattern is employed.

In the input device according to the present invention, the end portion of the waveguide sheet on which a pattern for inputting or outputting data is formed forms a bending portion and is directed downward through an end portion of the PCB, and the waveguide sheet end A light source and a light-shielding bracket are provided on a lower portion of the PCB to form an input device using the same case and a light source, The light source for irradiating the pattern formed on the plurality of waveguide sheets constituting the multi-layer structure is provided with the selective light-emitting means and the light- Only the specific waveguide sheet or the specific pattern can be obtained And can be applied to various fields such as a remote controller, an input part of a cooker, an interior kiosk, and the like by a selective lighting device. The specific light source is turned on so that not only the entire pattern of the waveguide sheet of one layer but only a specific pattern can be developed so that the input or output unit of a multi-channel can be implemented. Further, So that it is possible to input and output information in a more complicated and diverse manner, so that the user can easily input or obtain necessary information.

1 is a schematic view of a touch pad applied to a notebook among input devices according to the present invention;
2 is a schematic cross-sectional view of an input device comprising a waveguide sheet, which can be used in a composite input device including a touchpad according to the present invention;
Fig. 3 [A] is a schematic cross-sectional view of a conventional PCB top light-irradiated input device, and Fig. 3 [B] is a schematic cross-sectional view of a PCB bottom light-irradiated input device according to the present invention.
4 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;
4 is an exploded perspective view related to the lamination structure of a matrix type multi-input device according to the present invention;
FIG. 6 is a diagram illustrating a matrix of multi-input devices according to the present invention, in which a specific light source is lit by a selective lighting means to illuminate a specific pattern of a waveguide sheet, .

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 the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

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 only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, 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.

1 illustrates a notebook as a representative example of an input device having a touch pad having improved usability according to the present invention.

A notebook (N) having a monitor (N1) folding and unfolding around a hinge has a touch pad (TP) for a mouse in addition to a keyboard (Dk) which is a keyboard as an input device. The left button D1 has an Enter function and the right button D2 has a menu display function or the like in a similar manner to a mouse although the two buttons provided with the touch pad TP are changed according to the function setting. .

When an input device having a touch pad according to the present invention is applied to a notebook computer, it may be employed to improve a drag function which is typically inconvenient in a conventional notebook computer.

An input device Dt having a touch pad TP according to the present invention shown in a schematic sectional view in the lower part of FIG. 1 has a separate pressure operation input means Dp ) Can be introduced to improve convenience.

It is preferable that a support means Bu be provided under the touch pad TP in order to sense the pressure of the touch pad TP for the user's input and to return to the state where the next input is possible.

The supporting means Bu includes an elastic member Bu1 made of an elastomer such as silicone or rubber.

In addition to the resilient member Bu1 which is similar to the truncated cone type, a sensing member W provided under the supporting means Bu and sensing the displacement of the supporting means, essentially the displacement of the touch pad TP, Preferably,

The sensing member W includes a fixing part W1 mounted on (or mounted on) the PCB P and an elastic member Bu1 provided on the elastic member Bu1 to press the touch pad TP, And a movable part W2 for confirming whether or not the displacement is caused by the shrinkage and descent of the fixed part W1.

The supporting means Bu also includes a scissors type support (not shown) for evenly transferring the displacement of the touch pad TP, that is, the pressing force to the elastic member Bu1 (more essentially the sensing member W) Bu2). Such scissors type support (Bu2) can utilize a conventional key switch that is commonly applied for individual keys of the notebook keyboard (Dk), for example, Patent Registration No. 10-0419055 (Registration Date 2004 February 04).

The lower fixed shafts X1a and X1b are fixed to the PCB P around the center axis X3, and the upper movable shafts X2a and X2b are fixed to the lower portion of the touch pad TP, and thus, are lower than ordinary individual keys. The pressing force of the touch pad TP having a large area is evenly transmitted to the lower, in particular, the middle finger member Bu1 so that the movement of the touch pad can be sensed with a sense of balance and optimum sensitivity.

The pressure actuation input means Dp constituting the composite input device Dt together with the touch pad TP thus includes the PCB P and the sensing member W. [

The touch pad employed in the present invention may be constituted by a resistive film type, that is, a static pressure type touch sensor, as well as a capacitive touch sensor which is recently illuminated.

When the pressure actuation input means Dp is employed to supplement or improve the drag function of the existing notebook touch pad TP, when the touch pad TP is pressed with a stronger pressure than the normal touch pad TP, dragging start function, drag continuation function, or enter function after the drag operation, or both of them, basically performing the function of the existing touch pad adjacent left input button (D1) .

Further, the input device Dt having such a touch pad TP may further employ an input device composed of a waveguide sheet, which will be described later with reference to FIGS. 2 to 6, Or a remote controller for remote control of appliances.

2 shows an input device constituting an input unit constituted by a waveguide sheet associated with a colored pattern, which is employed together with a touch pad to enable the construction of a multicolor light emission input unit for implementing a composite input device.

As mentioned earlier, input devices can also be used as output devices such as kiosks,

2 to 6 for the input device of the present invention, particularly for a composite input device including a touchpad, and in the following description, the input device as well as the output device are referred to and described for the sake of conceptual expansion.

In addition, since the uppermost concept defined by the claims envisages a composite input device including a touch pad, the following description refers to only an 'input device' (or an output device) without a 'complex' or a hybrid.

In Fig. 2, a schematic partial enlarged view is shown in each of four pairs of one-dot chain line circles on the left and right, with a schematic cross-sectional view of the input device or the output device at the center.

Each one-dot chain line pair connected by the one-dot chain line is a different embodiment,

The cross-sectional view within the upper one-dot chain line shows a structure in which color bleeding or color invasion occurs,

The cross-sectional view inside the upper one-dot chain line shows a solution structure for this.

A light guide film (LGF) G is provided on a lower PCB (not shown).

On the waveguide sheet (LGF, Light Guide Film) (G), the visibility improvement function is basically guaranteed,

A 'multi' input device of the matrix type described with reference to FIG. 4,

Quot; dual input device " to allow different input or output portions to be visible according to the selection of the light source in one device

A screening and developing means, in particular, a light shielding sheet S is provided. The light shielding sheet S may be arranged below the waveguide sheet or arranged on both the upper and lower portions as necessary.

The light-shielding sheet has a light-transmissive portion in which a pattern corresponding to the pattern of the waveguide sheet is reversed.

Such a light-shielding sheet can be seen in [Picture 1] and [Picture 2] below. [Picture 1] was taken with one side taken in the laminated structure for the experimental input device. [Picture 2] was taken with a red light-transmitting film placed under the light-shielding sheet for more reliable confirmation of the light-transmitting pattern ], You can see the LED light source mounted on the PCB).

[Picture 1] [Picture 2]

In FIG. 2, the center cross-sectional view shows the concept of a PCB bottom light-irradiated input device, which will be described later with reference to FIG. 3 [B], in which the light source L is arranged below the PCB.

The light source L is exposed to the side end portion of the waveguide sheet G having the bent portion GB by the light blocking bracket SB, that is, the side end portion of the PCC lower light irradiation type light source L through the side of the PCB PCB. A structure having a bent portion GB, which will be described in detail in the description related to FIG. 3.

The 'pattern' (Gp) or other 'pattern', especially the color 'pattern', formed on the waveguide sheet (G) is not limited to being used or used by country, Means any display system for providing various information, providing information, warning, etc.

The light shielding sheet S is a kind of 'screening and developing means' described later with reference to FIG. 4, and has a light transmitting portion in which a pattern or a color pattern of the waveguide sheet, or a pattern corresponding to both of them is reversed.

This light-transmitting portion can be referred to in the one-dot chain line in Fig. 4 and is formed at the portion overlapping the pattern Gp of the waveguide sheet G in each one-dot chain line in Fig.

The formation of the light-transmitting portion can be performed by reversal printing or various inversion processes, for example, reverse-phase etching (in the industry, using the expression "lump" due to Japanese terminology).

In FIG. 2, one upper surface of the waveguide sheet G, that is, a lower surface (observer is observed at the upper portion), is provided on the upper one-dot chain line A pattern Gp (a pattern of white or achromatic color or a certain color) is formed on the light source L and a color pattern Cp1 (red display) The color of Cp1 spreads to the adjacent pattern Gp region and invades.

This problem is caused by the fact that the color pattern Cp2 (red display) for emerging within the area of the pattern Gp (white or achromatic color or a certain color pattern) as shown in the upper one-dot chain line of the pair of right and left lower single- The same occurs even when it is formed. The basic pattern Gp may be an etching (or printing) processing pattern particularly for a surface light source type light emission, and the color pattern Cp1 is a light transmitting color pattern.

The waveguide sheet to be improved, the etching pattern for emitting light in the form of surface light source (white), the color pattern Cp2 (special character, orange) in the pattern Gp region, the general color pattern Cp1 ('SYM', Orange and surface light source can be etched in the waveguide sheet [photo 3] below (the waveguide sheet pattern of [photo 3] and the light-transmitting pattern of the light shielding sheets of [photo 1] and [photo 2] Corresponding).

[Picture 3]

The structure for improving this is shown in the lower one-dot chain line of each one-dot chain line pair.

First, as an implementation example of the first solution, as shown in the lower one-dot chain line of the upper right one-dot chain line pair in FIG. 2,

The pattern Gp is formed on one surface (lower surface) of the waveguide sheet G, and the translucent heterogeneous color pattern CP1 is 'formed' (printed or etched) on the other surface (upper surface) of the waveguide sheet G itself. This is possible.

Further, as shown in the lower one-dot chain line of the lower right one-dot chain line pair,

The pattern Gp is formed on one surface (lower surface) of the waveguide sheet G and the transmissive dissimilar color pattern CP1 is formed on the other surface (upper surface) of the waveguide sheet G itself (printing or etching) And the heterogeneous color pattern CP2 is located within the pattern Gp region when viewed from above).

Next, as shown in the lower one-dot chain line of the upper left one-dot chain line pair in FIG. 2,

The pattern Gp is formed on one surface (lower surface) of the waveguide sheet G and the transmissive dissimilar color pattern CP3 is formed on the one surface (lower surface) of the light shielding sheet S (printing or etching) .

Further, as shown in the lower one-dot chain line of the lower left one-dot chain line pair,

The pattern Gp is formed on one surface (lower surface) of the waveguide sheet G and the translucent dissimilar color pattern CP4 is formed on one surface (lower surface) of the light-shielding sheet S (such as printing or etching) And the color pattern CP2 is located within the pattern Gp region when viewed from above).

As described above, in the solution structure shown in the lower one-dot chain line of each one-dot chain line pair, the translucent heterogeneous color pattern is arranged on the other surface of the waveguide sheet in the specification and claims of the present invention in relation to the formation position of the specific translucent dissimilar color pattern Quot; means that the waveguide sheet itself is formed not only in the case of forming a specific translucent dissimilar color pattern but also in the case of forming a specific translucent dissimilar color pattern in another member, in particular, a light shielding sheet.

When such a scheme is employed, even if a clear pattern color is employed, the problem of the color spreading and invading the different pattern areas of the mutually different color patterns does not occur.

Next, as can be seen in FIG. 3 (B), which schematically shows a remote controller (R) corresponding to an input device among the PCB lower light-tuning type input devices according to the present invention,

The present invention is provided with a waveguide sheet and an overlay sheet R3 (or window) in which a PCB R2 is arranged in a case R1, and a pattern is formed thereon.

4 and 4, when a plurality of waveguide sheets are provided for the purpose of realizing input units IP (or output units) in various modes,

Only the specific waveguide sheet or the specific pattern can be caused to emerge by the operation of the selective lighting means of the light sources L1 and L2

In order to prevent the light of the light source illuminated for the specific pattern development of a waveguide sheet from reaching the other waveguide sheet or the same pattern of the same waveguide sheet, GC1) (GC2).

In addition, a metal dome and an actuator (refer to FIG. 4 and the related description thereof) for transmitting the touch state of the waveguide sheet pattern, that is, the pressing or contact of the overlay sheet R3 to the PCB R2, (For example, only a PCB is shown for convenience and a relay means is not shown).

Both ends of the overlay sheet R3 (or a normal window) constituting the input unit IP unique to the remoter controller R for the protection of the built-in components of the case R1 and the operation of the TV, Adhesion means (R3a) such as a double-sided tape is provided between the upper stepped portions for accommodating, so that both components can be joined.

One of the essential points of the present invention is that the waveguide sheet has the bent portion GB and the end portion is directed to the lower portion of the PCB R2 and that the light source is also arranged below the PCB R2, In particular, light for emitting the waveguide sheet pattern is irradiated to the end of the bent portion.

This feature is applied to both cases where the waveguide sheet is provided with one layer or two or more layers,

When the waveguide sheet with two or more layers is introduced, the waveguide sheet composite layer GC1 (GC2) itself in which the light shielding sheet as the sorting and developing means for developing only one pattern of the waveguide sheet is joined constitutes a bent portion, Only the sheet can constitute the bent portion.

As can be seen in FIG. 3B, the bent portion GB of the PCB R2 has a first vertical bent portion GB1 at the PCB side end, a second horizontal bent bent portion GB1 bent toward the PCB inner side, And GB2.

Here, the meaning of the 'vertical' direction and the 'horizontal' direction is not a strict vertical and horizontal sense, but a bent region where the ends of the waveguide sheet or the waveguide sheet composite layer primarily surrounds the PCB side end, (L2) It is a selected expression to briefly refer to the curved bent portion toward the inside of the PCB secondarily for easy installation and realization of a relatively thin input device.

Due to advantages such as light source (L1) (L2), particularly small size, light weight, low heat generation, reflection configuration, high speed response characteristic, pulse operation characteristic, Considering ease of installation and heat dissipation

The folded portion of the waveguide sheet or the waveguide sheet composite layer may be provided with only the vertical first bend GB1 (the light source may be installed at the lower end of the case R1)

(The light source may be fixed to the light-shielding and fixing bracket SB1 or fixed to the bottom plate of the case R1 which is not shown), or to a horizontal second bent portion GB2 curved toward the inside of the PCB side,

(Not shown) extending from the second bent portion and curved toward the bottom surface of the PCB (the light source may be fixed to the PCB R2).

The light shielding bracket SB1 on the side of the light source L1 and L2 has a function of supporting the light source in addition to the shielding function and the light shielding bracket SB2 on the opposite side of the light source (see FIG. 3 (A) (Considering the light-shielding property of the waveguide sheet composite layer in which the light-shielding sheet is laminated), or may be replaced by a method of 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. 3 [A] has a first blank zone Z1 caused by the attachment means R3a, a second blank zone Z2 caused by the light source, a hot spot hot spot generation phenomenon and the third blank zone Z3 due to the light blocking bracket SB2 are generated and the area loss of the effective input unit IP is large,

Since only the first blank zone Z1 is generated in the present invention of FIG. 3B, it is possible to secure an additional effective IP area of at least 15 mm in the case of a remote controller, Of the total population.

Further, when the concept of the PCB lower light-tuning type input device according to the present invention is adopted, it is possible to provide a product in which the shape of the overlay sheet R3 is curved,

Beyond this, the PCB R1, the waveguide sheet, the relay means, and the case R1 accommodating the light source are also deformed, so that the shape of the input device itself is not an ordinary rod type having a square cross section, but a variety of shapes such as elliptical columnar, cylindrical, A product having a design can be realized.

Next, as shown in Figs. 4 and 4, the concept of a multi-input device of a matrix type will be described with respect to the input device D according to the present invention.

The matrix type multi-input device includes a plurality of waveguide sheets G1, G2, and G3, a plurality of light sources that emit light so that the pattern Gp of the waveguide sheet is exposed, and a plurality of light sources, And a screening and developing means for causing the light of the light source to emit only a specific waveguide sheet or a specific pattern.

The concept of the input device according to the present invention includes a membrane switch (an input device) for an input device for selecting a mode for each cooking step of a microwave oven or other cooking utensil, a selection for stepwise menu selection of a vending machine, A remote controller (input device) for various home electronic devices such as a button panel (input device), a TV, and a kiosk (output device) for stepwise building area guidance such as a complex shopping mall.

Fig. 4 shows a schematic connection sectional view of a keypad type input device D configured by applying the concept of a matrix type multi-input device according to the present invention.

4, the keypad type input device 1 includes a frame 6,

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

A metal dome 3 having elasticity and connected to the PCB 5 so as to be disposed on the contact point,

(Waveguide sheet + selective developing means + light source (not shown) lamination assembly (D)), which is a multi-input device of the present invention, interposed between the metal dome 3 and the key top 2,

The keypad type input device (1) includes an actuator (4) provided on the upper surface of the metal dome (3).

When the user depresses the button of the key top 2, the keypad type input device 1 configured as described above allows the device D, which is a stacked assembly disposed at the lower portion thereof, to descend to press the actuator 4 down, The metal dome 3 is lowered by the actuator 4 and is brought into contact with the contact point of the PCB 5 to input a user's operation signal.

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

Hereinafter, a keypad type input device of the input 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 scope of protection of the present invention should not be construed as limited.

4, an input device according to the present invention, in particular an input device, and more particularly a keypad type input device, comprises a plurality (three in FIG. 4 and FIG. 4 for multi- G2 and G3 of the waveguide sheet and a screening and developing means S of the upper portion of each waveguide sheet are provided on the lower surface of the waveguide sheet and the black sheet B is laminated and combined at the lowermost portion.

A plurality of light sources for irradiating a pattern Gp formed on part or all of the waveguide sheets G1, G2 and G3 are provided (in FIG. 4, a plurality of light sources are provided for each waveguide sheet)

More particularly, the present invention relates to an LED having a small size, a light weight, a small heat generation, a reflecting structure, a high speed response characteristic, a pulse operation capability, L1a and L1b (L2a and L2b) (L12 and L2b) are provided at two positions in a staggered position for each waveguide sheet in accordance with the shortening tendency. In FIG. 4, LEDs, which are light sources, are provided on the side surfaces of the waveguide sheet for the sake of convenience.

The waveguide sheets G1, G2 and G3 are made of highly transparent materials such as PC, PE, PET, PU, PMMA and glass, ) And transmits the incident light to the opposite side surface. These 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 screening and developing means to be described later.

Also, some or all of the light sources may be of a type that emits light of different wavelengths.

And is softened and elastic so as to be restored to its initial state after the pressing force has been extinguished (or, alternatively, the keypad 2 (referred to as the overlay sheet R3 in FIG. 3) , A signal is transmitted in response to a user's touch when a capacitive sensitive or resistive (or pressure sensitive) touch sensor is introduced, and a variety of known signals for transmitting the touch state of the waveguide sheet pattern to the PCB Delivery relay means can be introduced).

Further, a 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.,

The symbol indicated by the pattern Gp is a character, an Arabic numeral (0 to 9), a character having an Arabic numeral (e.g., 1, 2, 3, ...) : one, two, three, ...), or other forms of symbolic symbols, numbers or letters, or combinations thereof, which are customary or promised according to the individual purpose.

The pattern Gp may be formed by printing on the surface of the waveguide sheets G1, G2 and G3, in particular by screen printing, ink of a material having diffuse reflection characteristics.

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

As described above, the pattern Gp can be formed in various ways. When the patterns Gp are displayed on the surface of the key top 2 and recognized by the user, the patterns Gp displaying the similar function and the patterns Gp displaying the other functions Gp) can be divided into a plurality of patterns Gp so that the pattern Gp can be printed with a transparent pattern and a color pattern by screen-printing ink of a material reflecting light of a specific wavelength for each function have.

4, the input device 1 of the keypad type includes a switch SW provided on a side surface of the frame 6. The input device 1 includes a switch SW provided on the side of the frame 6, as shown in Fig.

Further, the selective lighting means can be realized in such a manner that a specific light source is lit by contact with a pattern portion developed by a light source.

That is, the selective lighting means can be realized in such a manner that the pattern of the next step is developed by manipulating (pressing or touching) a specific pattern element of the present-emergence pattern.

An example of such a selective lighting means will be described. When a cooking menu selection button of a microwave oven is constructed on the basis of the present invention, when a frozen rice cake is finally used in selecting a rice cake menu

A set of menu buttons corresponding to the first channel is first displayed using the switch SW provided on the side of the frame 6 of FIG. 4,

When the defrost button of the first channel is pressed, the other light source is turned on

A set of menu buttons corresponding to the second channel is illuminated and developed, and when the rice cooking button of the second channel is pressed, another light source is turned on

A set of menu buttons corresponding to the third channel is illuminated and developed, and when the rice cake button of the third channel is pressed, another light source is turned on

A set of menu buttons corresponding to the fourth channel is illuminated and developed, and the crispness of the fourth channel (rice cake - cooked degree) - crispy (depending on the degree of grill, Can be configured to divide and select)

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

Next, the screening and developing means serves to cause the light of the light source turned on by the selective lighting means to emit only a specific waveguide sheet or a specific pattern.

4 and Fig. 4 are arranged between the waveguide sheet G1 of the first layer and the waveguide sheet G2 of the second layer and between the waveguide sheet G2 of the second layer and the waveguide sheet G2 of the waveguide sheet G2 of the third layer, (G) and a light shielding sheet (S)

When some or all of the light sources L1a and L1b (L2a and L2b) (L12 and L2b) for the respective waveguide sheets are turned on, the light of the light source serves to reduce the amount of light so that the pattern Gp of the other waveguide sheet is not developed .

To this end, the light-shielding sheet S is provided with a light-transmitting portion S1c (S2c) corresponding to a pattern in which the patterns of the respective waveguide sheets are overlapped, corresponding to the pattern Gp of the waveguide sheets G1, G2, (S3c).

4, the patterns Gp of the waveguide sheets G1 (G2) and G3 (G3) are different from each other, so that the light transmitting portions S1c, S2c and S3c of the respective light- The shape is also different.

However, unlike the pattern Gp of the second waveguide sheet G2, the transparent portion S2c of the other second-layer light-shielding sheet S differs from the pattern Gp of the second waveguide sheet G2

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

The transparent portion S3c of the third-layer shading sheet S is different from the pattern Gp of the third waveguide sheet G3

And the patterns Gp of the first, second and third waveguide sheets G1, G2 and G3 are superimposed.

Alternatively, the light of each of the light sources L1a and L1b (L2a and L2b) L12 and L2b does not affect the pattern Gp of the waveguide sheet other than the waveguide sheets G1, G2 and G3 The selection means

As shown in the left one-dot chain line in Fig. 4,

Diffusion preventing sheet Sp provided between the first and second waveguide sheets G1 and G2 and between the second and third waveguide sheets G2 and G3.

This diffusion preventing sheet Sp is opaque or translucent or is processed to transmit only light of a specific wavelength band so that the light amount of the light source for one waveguide sheet is reduced or shielded so as not to develop the pattern Gp of another waveguide sheet It plays a role.

Furthermore, the screening and developing means may be configured to divide the area of each waveguide sheet so that the light of one or a part of the plurality of light sources provided in one waveguide sheet G1, G2, Lt; / RTI >

Such a partition may be a printed layer provided on each waveguide sheet (for example, a waveguide sheet arranged on one layer is cut and a printed layer is introduced on the cut surface), a processed portion (formed in a vertical direction)

A partition provided on the waveguide sheet,

A printed layer or a processed portion introduced into the film provided on the upper or lower portion of the waveguide sheet or both of them.

Alternatively, the selection and development means may be a pattern composed of a light source for irradiating light of a specific wavelength band and an ink for reacting to the light source light of the specific wavelength band.

Again referring to Fig. 4 and Fig. 4, the light shielding sheet S constituting the sorting and advancing means will be described.

The light shielding sheet S is made such that the light that enters the light shielding sheet from the waveguide sheets G1, G2 and G3 provided at the lower portion thereof is transmitted only through the light transmitting portion 25, To prevent light from entering into the chamber,

4 and 4, the light shielding sheet S is arranged on each of the three laminated waveguide sheets G1, G2 and G3, and the lower shielding sheet S is arranged on the lower surface of the lowermost first waveguide sheet G1. A black sheet B is provided.

Each light shielding sheet S is not only reflected by a pattern Gp provided in its own waveguide sheets G1, G2 and G3 but also by a pattern Gp provided on another waveguide sheet disposed therebelow The light emitted from the light projecting portions S1c, S2c and S3c flows out to the upper portion through the light projecting portions S1c, S2c and S3c, leaked to

(P1a, P1b) (P2a, P2b) (P3a, P3b) displayed to the user are clearly displayed and free from deformation.

The light shielding sheet S blocks the light incident on the upper waveguide sheets G3 and G2 from entering the lower waveguide sheet G2 G1 and applies the corresponding pattern Gp to the keytop 2 button. So that the other patterns Gp are not superimposed and displayed.

For example, in the absence of the light shielding sheet S, the upper waveguide sheet G3 (the light sources L3a and L3b (L2a and L2b) Most of the light is incident on the lower waveguide sheet G2 G1 or the lower waveguide sheet G2 through the upper waveguide sheets G3 and G2, The light can be introduced into the sheet G2 G1 and the light introduced into the lower waveguide sheet G2 G1 can be reflected by the pattern Gp of the lower waveguide sheet G2 The light of the light sources L3a and L3b (L2a and L2b) can flow only into the upper waveguide sheets G3 and G2 and the lower waveguide sheet G2 It can not enter.

The light introduced into the upper waveguide sheets G3 and G2 is shielded and destroyed by the sorting and developing means S even though the light is refracted and diffused and hardly flows into the lower waveguide sheet G2 The inflow light can be prevented from reaching the pattern Gp in consideration of the inflow direction and reaching the pattern Gp through the transparent portion S2c (S1c) And is not easily transmitted again to the transparent portion S2c (S1c).

The light shielding sheet S has transparent layers S1b, S2b, and S3b and a printed layer S1a, S2a, and S3a,

The transparent layers S1b, S2b, and S3b are made of a transparent material so that the incident light can be transmitted to the upper portion. The transparent layers S1b, S2b, and S3b may be made of PC, PE, PET, PU, PMMA or glass.

The transparent layers S1b, S2b, and S3b may be formed of a transparent transparent film, or may be formed by UV molding a liquid transparent synthetic resin on the surfaces of the waveguide sheets G1, G2, and G3.

The printed layers S1a, S2a and S3a are printed on one side of the transparent layer S1b excluding the transparent portion 25 and are printed on the entire surface except for the transparent portions S1c, S2c and S3c It is preferable to print in black or achromatic color so as to completely block the light.

The printing layers S1a, S2a, and S3a are formed by the printing method (inversion printing) by allowing the transparent portions S1c, S2c, and S3c to be formed at the precise positions of the surfaces of the transparent layers S1b, S2b, The print layers S1a, S2a, and S3a may be formed by bonding the transparent layers S1b, S2b, and S3b to the black film provided with the transparent portions 25, The layers S1a, S2a, and S3a may be formed. That is, the printing layer is not necessarily formed by printing in a manner that it is named as the printing layer.

Since the sorting and developing means S disposed at the uppermost portion is exposed and contacts the key top 2, it also serves as a protective layer.

Therefore, the screening and developing means S disposed at the uppermost portion can prevent the print layer S3a from being exposed by allowing the transparent layer S3b to be disposed on the upper side and the print layer S3a to be disposed on the lower side, It is preferable to prevent scratches or deform the shape of the transparent portion.

The black sheet B is disposed under the first waveguide sheet G1 to prevent the light emitted from the light source and introduced into the waveguide sheet G1 from flowing out to the lower portion of the waveguide sheet G1, (Electronic device mounted on the PCB), and the shapes of the pattern Gp and the light-transmitting portion disposed on the upper side are more clearly seen.

The black sheet B is also composed of a transparent layer B2 and a print layer B1 like a translucent sheet, but the translucent portion is not provided in the print layer. In other words, the entire one surface of the transparent layer B2 is printed in black.

The transparent layer B2 of the black sheet B can also be formed by bonding a 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 print layer B2 may also be formed by printing black ink on one surface of the transparent layer B1, or by adhering a black film to one surface of the transparent layer.

As described above, the multi-input device D according to the present invention may have various forms and combinations. As shown in the conceptual diagram of FIG. 6,

The specific light source may be turned on (by stepwise selection as necessary) by the selective lighting means to have a matrix of the emerging patterns appearing when a specific pattern of the waveguide sheet is irradiated,

In the shown embodiment, an example of the combination of the nine patterns of the channels and the patterns P 1 a and P 1 b (P 2 a and P 2 b) (P 3 a and P 3 b) of the multi-input device D can be confirmed based on FIG. 4 and FIG.

In the above description, conventionally known techniques related to a multi-input device and the like are omitted, but those skilled in the art can easily guess, deduce, and reproduce it.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited thereto. Various modifications, alterations, and substitutions of the present invention may be made by those skilled in the art. Should be construed as falling within the scope of protection of the present invention.

Dt, D: Input device N: Notebook
T: Tape pad Bu: Support means
Dp: pressure operating input means W: sensing member
X1a, X1b, X2a, X2b, X3: axis G, G1, G2, G3: waveguide sheet
GC, GC1, GC2, GC3: waveguide sheet composite layer GB, GB1, GB2:
Gp: patterns P1a, P1b, P2a, P2b, P3a, P3b:
L, L1, L2, L1a, L1b, L2a, L2b, L3a,
SW: Select lighting means
S: Shading sheet S1a, S2a, S3a: Shading layer
S1b, S2b, S3b: transparent layers S1c, S2c, S3c:
Sp: diffusion prevention sheet
1: Keypad type input device 2: Key top
3: Metal dome 4: Actuator
5: PCB 6: Frame
R: Remote controller R1: Case
P, R2: PCB R3: Overlay sheet
SB1, SB2: Shading bracket Z1, Z2, Z3: Blank zone

Claims (5)

Touchpad;
Supporting means for elastically supporting the touch pad; And
Pressure-operated input means provided below the support means and including a sensing member for sensing a displacement of the support means;
Input device with a touch pad enhanced in ease of use made, including. The method of claim 1,
The support means is an input device having a touch pad with enhanced ease of use, characterized in that it comprises an elastic member. The method of claim 1,
The support means is an input device having a touch pad with improved convenience for personnel, characterized in that it comprises a scissors-type support for evenly transmitting the displacement of the touch pad. The method according to any one of claims 1 to 3,
PCB;
A patterned waveguide sheet for input or output of data;
A waveguide sheet in which a pattern for input or output of data is formed and which has a bent portion whose end is directed downward of the PCB;
A light source for irradiating light so that a pattern of the waveguide sheet is developed; And
A light shielding sheet having a light transmitting part in which patterns corresponding to the pattern and the color pattern of the waveguide sheet are inverted;
Input device having a touch pad with enhanced ease of use, characterized in that it further comprises an input unit comprising a. The method of claim 4, wherein the input unit
Wherein the waveguide sheet and the light source are respectively plural,
A selective lighting unit for lighting a specific one of the light sources,
An input device having a touch pad having enhanced usability, further comprising a selection-displaying means for displaying light of a light source illuminated by the selective lighting means to display only a specific waveguide sheet or a specific pattern.

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