KR20130011327A - Input device and image display apparatus including the same - Google Patents

Abstract

PURPOSE: An input device and an image display device including the same are provided to vary light quantity of a first light source unit and a second light source unit by varying a first electric signal or a second electric signal according to touch information. CONSTITUTION: A first light source unit(210a,210b) and a second light source unit(215a,215b) are separated from each other. A light guide unit(230) synthesizes light emitted from the first optical source unit and the second optical source unit. A touch sensing unit(220) senses touch input. A light source control unit varies the first electric signal or the second electric signal according to the sensed touch information.

Description

Input device and image display apparatus including the same

The present invention relates to an input device and an image display device including the same, and more particularly, to an input device and an image display device including the same that can improve user convenience.

The image display device is a device having a function of displaying an image that a user can watch. Alternatively, audio signals may be output.

An input device is used for an image output or audio output or other setting desired by the user in the image display apparatus.

An object of the present invention is to provide an input device and an image display device including the same that can improve the user's ease of use.

Another object of the present invention is to provide an input device capable of giving an interactive effect upon input and an image display device including the same.

An input device according to an embodiment of the present invention for achieving the above object, and outputs the synthesized light by combining the first light source and the second light source and the light emitted from the first light source and the second light source are arranged spaced apart from each other At least one of a light guide unit, a touch sensing unit sensing a touch input, and a first electrical signal transmitted to the first light source unit or a second electrical signal transferred to the second light source unit according to the touch information detected by the touch sensing unit. It includes a light source control unit for varying.

In addition, the input device according to an embodiment of the present invention for achieving the above object, the light is synthesized by combining the light emitted from the first light source and the second light source and the first light source and the second light source and spaced apart from each other And a light guide part configured to control at least one of the light amount of the first light source part and the light amount of the second light source part according to the position of the touch input.

In addition, the image display device according to an embodiment of the present invention for achieving the above object, and outputs the synthesized light by synthesizing a display for displaying an image, and the light emitted from the first light source unit and the second light source unit, The touch device may include an input device configured to variably output at least one of light emitted from the first light source or light emitted from the second light source, and a controller configured to perform an operation corresponding to the position of the touch input.

According to an embodiment of the present invention, when there is a touch input between the first light source unit and the second light source unit, which are spaced apart from each other, the first electrical signal or the second light source unit is transmitted to the first light source unit according to the touch information. By varying at least one of the second electrical signals, at least one of the light amount of the first light source unit or the light amount of the second light source unit can be varied. That is, an interactive effect may be provided at the touch input. As a result, user convenience may be increased.

That is, according to the touch position information of the touch information, by varying the light amount of the first light source unit and the light amount of the second light source unit in inverse proportion to each other, the interactive effect can be increased.

Meanwhile, various feedback effects may be realized by further varying at least one of the light amount of the first light source unit and the light amount emitted from the second light source unit according to the touch count information, the touch intensity information, or the touch duration information of the touch information. .

Meanwhile, the touch input may be performed by performing at least one of the color change of the light emitted from the first light source unit or the color change of the light emitted from the second light source unit according to the touch count information, the touch intensity information, or the touch duration information of the touch information. It is possible to implement various interactive effects.

On the other hand, according to the position of the touch input, by operating the corresponding input key of the plurality of input keys displayed on the substrate, it is possible to simply implement the input key.

On the other hand, the image display device having an input device according to an embodiment of the present invention, by displaying a corresponding object according to the position of the touch input, it is possible to implement a variety of menu configuration and the like according to the position.

As a result, in the image display device including the input device according to the embodiment of the present invention, various user interfaces may be provided, thereby increasing user convenience.

1 is a view showing an image display device having an input device according to an embodiment of the present invention.
FIG. 2 is an internal block diagram illustrating an example of the input device of FIG. 1.
3 is an internal block diagram illustrating another example of the input device of FIG. 1.
4 is an exploded perspective view illustrating an example of a structure of the input device of FIG. 1.
5 is a diagram illustrating an example of a fastening structure of the input device of FIG. 1.
6 is an exploded perspective view illustrating another example of the structure of the input device of FIG. 1.
7 to 13 are diagrams illustrating various examples of an optical display according to a touch input position of the input device of FIG. 1.
14 to 16 illustrate various operations of the image display device corresponding to the position of the touch input.
17 is a diagram illustrating another example of a fastening structure of the input device of FIG. 1.
FIG. 18 is a diagram illustrating various examples of an optical display according to a touch input position of the input device of FIG. 17.
19 to 22 are diagrams illustrating various examples of an optical display according to the intensity of a touch input of the input device of FIG. 1.
FIG. 23 is a block diagram illustrating an image display apparatus of FIG. 1.
FIG. 24 is an internal block diagram of the controller of FIG. 23.
25 is a diagram illustrating an image display device having an input device according to another embodiment of the present invention.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a view showing an image display device having an input device according to an embodiment of the present invention.

Referring to the drawings, the input apparatus 200 according to an embodiment of the present invention may be provided in the image display apparatus 100.

In the drawing, the input device 200 is disposed on at least a portion of the bezel area surrounding the display 180 of the image display device 100.

The input device 100 according to the embodiment of the present invention includes a plurality of light source units, synthesizes and outputs light emitted from each light source unit, and in particular, when the input device 100 has a user's touch input, touch input In response to the touch information of, the light emitted from each light source unit is varied.

For example, the amount of light in the at least one light source unit may be varied according to the touch position information of the touch information. As a result, an interactive effect may be provided in response to the touch input.

As another example, the amount of light in the at least one light source unit may be varied according to touch count information, touch intensity information, or touch duration information in the touch information. Alternatively, the light color of the at least one light source unit may vary according to the touch count information, the touch intensity information, or the touch duration information of the touch information. As a result, an interactive effect may be provided in response to the touch input.

Meanwhile, the input apparatus 200 may include a plurality of input keys (not shown) to enable input of various input operations. In this case, the plurality of input keys may be displayed on a substrate of the input apparatus 100 by a printing technique or the like. Accordingly, the position of the touch input may correspond to a plurality of input keys, and accordingly, different input operations may be performed according to the position of the touch input.

The operation of such an input device will be described in detail with reference to the following.

On the other hand, the image display device described in the present specification is a TV receiver, a mobile phone, a smart phone (notebook computer), a digital broadcasting terminal, PDA (Personal Digital Assistants), MP3 player, PMP (Portable Multimedia Player) ), E-book, and the like.

That is, the input device 100 according to the embodiment of the present invention may be applied to various image display devices and the like as described above. In addition to the image display device, the present invention can be applied to electronic devices such as a washing machine, a refrigerator, an air conditioner, a cooking appliance, a cleaner, an electric iron, and the like.

FIG. 2 is an internal block diagram illustrating an example of the input device of FIG. 1.

Referring to the drawings, the input device 100 according to the embodiment of the present invention, the substrate 205, the first light source unit 210, the second light source unit 215, the touch sensing unit 220, the light guide unit 230 , And the light source controller 250.

The first light source unit 210 and the second light source unit 215 may be spaced apart from each other and may output light. In this case, the first light source unit 210 and the second light source unit 215 may output light of the same color, or may output light of different colors. In the following description, for the sake of convenience, outputting light of different colors will be described.

The light guide unit 230 outputs the synthesized light by combining the light emitted from the first light source unit 210 and the second light source unit 215.

The light guide part 230 may include at least one of a first direction pattern in the direction of the second light source unit 215 in the first light source unit 210 or a second direction pattern in the direction of the first light source unit 210 in the second light source unit 215. It may include one. As a result, when the touch input is moved from the first light source unit 210 to the second light source unit 215, the amount of synthesized light may be increased, as well as the directivity may be increased. This will be described later with reference to FIGS. 17 and 18.

The touch detector 220 detects a touch input. The detected touch information is transmitted to the light source controller 250. The detected touch information may include touch location information, touch count information, touch intensity information, or touch duration information.

The touch sensing unit 220 may be implemented in various ways, such as capacitive or static pressure type, to sense a user's touch input. In FIG. 4, a static touch sensing unit is illustrated, and in FIG. 6, a capacitive touch sensing unit is illustrated.

The light source control unit 250 controls the first light source unit 210 and the second light source unit 215. In particular, the first electrical signal S1 transmitted to the first light source unit 210 or the second electrical signal S2 transmitted to the second light source unit 215 according to the touch information detected by the touch sensor 220. At least one variable.

For example, the light source controller 250 may include the first electrical power as the touch position information of the touch information detected by the touch detector 220 is closer to the second light source 215 than the first light source 210. Further increasing the level or pulse width of the signal S1, further reducing the level or pulse width of the second electrical signal S2, or further increasing the level or pulse width of the first electrical signal S1; 2 can further reduce the level or pulse width of the electrical signal (S2).

That is, the light source controller 250 may increase the amount of light output from the first light source unit 210 as the touch position information of the touch information is closer to the second light source unit 215 than the first light source unit 210. The amount of light output from the second light source unit 215 may be reduced, or the amount of light output from the second light source unit 215 may be reduced while the amount of light output from the first light source unit 210 is increased. By varying the amount of light, the user can realize an interactive effect corresponding to the touch input.

The light source controller 250 may vary the light amount of the first light source unit and the light amount of the second light source unit in inverse proportion to each other according to the touch position information of the touch information.

The light source controller 250 includes the level, pulse width, or period of the first electrical signal S1 according to the touch count information, the touch intensity information, or the touch duration information among the touch information detected by the touch detector 220. To vary the level, pulse width, or period of the second electrical signal S2, or vary the level, pulse width, or period of the first electrical signal S1, The level, pulse width or period can be varied.

For example, the light source controller 250 may include a touch count, a touch intensity, or a touch duration in a state in which touch position information of the detected touch information is closer to the second light source unit 215 than to the first light source unit 210. If this increases, the level or pulse width of the first electrical signal S1 is further increased, the level or pulse width of the second electrical signal S2 is further reduced, or the level or the pulse width of the first electrical signal S1 is increased. While further increasing the pulse width, it is possible to further reduce the level or pulse width of the second electrical signal S2.

That is, the amount of light output from the first light source unit 210 is increased, or the amount of light output from the second light source unit 215 is decreased, or the amount of light output from the first light source unit 210 is increased while the second light source unit 215 is increased. ) Can be controlled to reduce the amount of light output.

In particular, when the number of touches, the touch intensity, or the touch duration increase, the amount of light output from the first light source unit 210 is further increased, or the amount of light output from the second light source unit 215 is further reduced, or As the amount of light output from the first light source unit 210 is further increased, the amount of light output from the second light source unit 215 may be further reduced. By varying the amount of light, the user can further feel the interactive effect corresponding to the touch input.

As another example, when the number of touches, touch intensities, or touch durations of the detected touch information are variable, the light source controller 250 may perform the cycle of the first electrical signal S1 or the cycle of the second electrical signal S2. At least one can be varied.

That is, the color of the light output from the first light source unit 210 is varied, the color of the light output from the second light source unit 215 is varied, or each of the outputs from the first light source unit 210 and the second light source unit 215. The color of the light can be varied. By varying the light color, the user can further feel the interactive effect corresponding to the touch input.

The light source controller 250 may classify the touch information detected by the touch detector 220 into touch location information, touch count information, touch intensity information, or touch duration information.

For example, based on the touch position information signal whose level is converted among the touch information signals detected by the touch detector 220, the position information may be detected or the pulses of the touch information signals detected by the touch detector 220 may be detected. According to the number, touch count information, touch intensity information, or touch duration information may be grasped.

3 is an internal block diagram illustrating another example of the input device of FIG. 1.

Referring to the drawings, the input device of FIG. 3 is substantially similar to the input device of FIG. 2, except that the access sensor 240 is further provided. Only the differences are described below.

The approach detecting unit 240 detects when a user's finger or the like approaches within a predetermined range, and may be implemented using a sensor (photo sensor, etc.) method or a high frequency oscillation circuit method using light. The detected signal is input to the light source controller 250.

When it is determined that the user approaches within a predetermined range, the light source controller 250 may control the light to be emitted from at least one of the first light source 210 and the second light source 215.

That is, when the user does not approach within a predetermined range, in order to reduce the power consumption, the first light source unit 210 and the second light source unit 215 are in an idle state so as not to emit light, and then the access detector. When it is detected that the vehicle approaches the predetermined range within 240, light may be controlled to emit light from at least one of the first light source unit 210 and the second light source unit 215. Thereafter, the user may perform a touch input operation in a state in which the first light source unit 210 or the second light source unit 215 is activated.

 4 is an exploded perspective view illustrating an example of the structure of the input device of FIG. 1, and FIG. 5 is a diagram illustrating an example of a fastening structure of the input device of FIG. 1.

Referring to the drawings, the first light source unit 210 and the second light source unit 215 may be spaced apart from each other at both ends of the touch sensing unit 220 that can be implemented as a printed circuit board (PCB).

 The first light source unit 210 may emit first light having a predetermined color. In addition, the second light source unit 215 may emit a second light different from the color emitted from the first light source unit 210.

Each light source unit 210 or 215 may include a plurality of light sources for light emission. For example, a light emitting diode (LED) may be used as the light source. The light emitting diode may be an inorganic light emitting diode or an organic light emitting diode.

Meanwhile, the first light source unit 210 and the second light source unit 215 may each include a plurality of light sources that emit light of different colors. In this case, each of the light source units 210 and 215 may output light of different colors, depending on conditions.

4 illustrates a plurality of light sources 210a and 210b in which the first light source unit 210 emits red (R) light, and a plurality of light sources in which the second light source unit 215 emits green (G) light. It demonstrates having light sources 215a and 215b.

Hereinafter, for convenience of description, the first light source unit 210 is described as emitting red (R) light, and the second light source unit 215 is described as emitting green (G) light.

The touch sensing unit 220 may be disposed below the light guide unit 230. That is, the light guide unit 230 may be disposed under the substrate 205, and the touch sensing unit 220 may be disposed under the light guide unit 230. In particular, the first light source unit 210 and the second light source unit 215 may be disposed at both ends of the touch detector 220.

The touch sensor 220 of FIG. 4 may be implemented in a positive pressure method to detect a touch input of a user. The touch information detected by the touch sensor 220 is transmitted to the light source controller 250.

The light guide unit 230 outputs the synthesized light by combining the light emitted from the first light source unit 210 and the second light source unit 215.

The light guide unit 230 couples the first light source unit 210 and the second light source unit 215 to holes corresponding to the first light source unit 210 and the second light source unit 215, respectively. The light is transmitted in the direction of the second light source unit 215, and the light of the second light source unit 215 is transmitted in the direction of the first light source unit 210.

 4 illustrates that the light guide unit 230 is disposed between the substrate 205 and the touch sensing unit 230 to which the plurality of light source units 210 and 215 are attached. In particular, insertion holes (Holes) may be formed in the corresponding area so that the red light sources 210a and 210b and the green light sources 215a and 215b installed at both ends of the touch sensing unit 220 are insertable, respectively. have.

Meanwhile, the reflective layer 321 may be disposed between the light guide 230 and the touch detector 220 such that the light synthesized by the light guide 230 is not transmitted toward the touch detector 220. . By the reflective layer 321, the light synthesized in the light guide 230 may be output toward the substrate 205.

The light guide part 230 may include at least one of a first direction pattern in the direction of the second light source unit 215 in the first light source unit 210 or a second direction pattern in the direction of the first light source unit 210 in the second light source unit 215. It may include one. As a result, when the touch input is moved from the first light source unit 210 to the second light source unit 215, the amount of synthesized light may be increased, as well as the directivity may be increased. This will be described later with reference to FIGS. 17 and 18.

FIG. 5 illustrates an appearance of the input device 200, which is combined in the order of the substrate 205, the light guide 230, and the touch detector 230, as shown in FIG. 4. The input device 200 may be implemented as a module. In this case, the light source controller 250 and the access detector 240 may be disposed on the back surface of the touch detector 230 implemented as a printed circuit board.

On the other hand, the substrate 205 transmits the light synthesized by the light guide portion 230 and outputs it. To this end, the substrate 205 may be implemented with a transparent material. For example, the substrate 205 may be implemented with a glass material or a transparent film.

In addition, a plurality of input keys may be displayed on the substrate 205. For example, multiple inputs such as INPUT, MENU, Volume Down (-VOL), Volume Up (VOL +), Channel Down (-CH), Channel Up (CH +), and Power (POWER). The keys may be displayed. In detail, a plurality of input keys may be displayed on the transparent substrate 205 by a printing technique or the like.

The input key displayed on the substrate 205 is preferably displayed so that it can be easily recognized from the emitted synthetic light. On the other hand, the input key displayed on the substrate can be variously modified.

On the other hand, as the position of the touch input is closer to the second light source unit 215 than the first light source unit 210, the light amount of the first light source unit 210 increases more than the light amount of the second light source unit 210, It is possible to perform light synthesis display by the variable amount of light. As a result, when the touch input position moves, a moving effect may be provided.

On the other hand, in contrast to the above-described example, the light source controller 250 further increases the light amount of the first light source unit 210 as the position of the touch input is closer to the second light source unit 215 than the first light source unit 210. It may reduce or further increase the amount of light of the second light source unit 210. As a result, when the touch input position moves, a moving effect may be provided.

6 is an exploded perspective view illustrating another example of the structure of the input device of FIG. 1.

Referring to the drawings, the structure of the input device of FIG. 6 is similar to that of the input device of FIG. 5, but the position of the touch sensing unit 220 is not disposed at the bottom as shown in FIG. 5. There is a difference in that it is disposed between the 205 and the light guide 230. Meanwhile, the reflective layer 231 may be attached to the rear side of the light guide portion 230.

In this case, the first light source 210 and the second light source 215 may be spaced apart from each other on the light guide 230, particularly at both ends of the light guide 230.

The touch detector 220 may be a capacitive touch detector. The touch information detected by the touch sensor 220 is transmitted to the light source controller 240.

Meanwhile, unlike FIG. 4 and FIG. 6, the position of the touch sensing unit 220 may be variously modified.

7 to 13 are diagrams illustrating various examples of an optical display according to a touch input position of the input device of FIG. 1.

First, referring to FIG. 7, at a first time T1, a user's finger touch input position is at a first position 610 close to the first light source unit 210, and at a second time T2. The touch input position moves to the second position 620 partially moved from the first light source unit 210 to the second light source unit 215. Then, at the third time T3, the touch input position moves to the intermediate position 630 between the first light source unit 210 and the second light source unit 215, and at the fourth time T4, the touch input position is moved. An example of moving to a fourth position 640 partially adjacent to the second light source unit 215, and moving the touch input position to a fifth position 650 near to the second light source unit 215 at a fifth time T5 is illustrated. do.

As shown in FIG. 7, when the touch input position is variable, the light source controller 250 may include the first light source unit 210 or at least one of the light amount of the first light source unit 210 and the light amount of the second light source unit 215. The second light source unit 215 is controlled.

8 illustrates a principle of combining light output from the first light source unit 210 and light output from the second light source unit 215 according to an exemplary embodiment of the present invention.

In the embodiment of the present invention, when the three primary colors of light, red, green, and blue, respectively, are synthesized, red + green = yellow, green + blue = cyan, The principle of light synthesis is red + blue = magenta and red + blue + green = white.

As described above, the first light source unit 210 emits red (R) light, the second light source unit 215 emits green (G) light, and the light guide unit 220 respectively emits red light to the second light source unit ( In the direction of 215, the green light is transmitted toward the first light source unit 210. In this case, when the light amount of the first light source unit 210 and the light amount of the second light source unit 215 are the same, yellow, which is a composite color of red and green, is displayed at the intermediate position 630 of the input device 200 as shown in the drawing. .

That is, as the red light emitted from the first light source unit 210 is transmitted toward the second light source unit 215, its intensity decreases gradually, and the green light emitted from the second light source unit 215 is transmitted toward the first light source unit 210. As the intensity decreases, yellow, which is a composite color of red and green, is displayed at the intermediate position 630 of the input apparatus 200.

FIG. 9 illustrates light displayed by the input apparatus 200 in response to the first time T1 of FIG. 7.

Referring to the drawings, when the user's finger touch input position is the first position 610 at the first time T1, the amount of light of the first light source unit 210 is reduced or the second light source unit 215 is not. By increasing the amount of light, it is possible to control the position of yellow, which is a composite color of red and green, to be located at the first position 610.

To this end, when adjusting the amount of light from the light source unit 210 or 215 using the PAM method, the light source controller 250 may reduce the magnitude of the signal level input to the first light source unit 210 or may be input to the second light source unit 210. The magnitude of the signal level can be increased.

Alternatively, when the light source control unit 250 adjusts the amount of light of the light source units 210 and 215 by the PWM method, the pulse width of the signal input to the first light source unit 210 is reduced or the signal input to the second light source unit 210. Can increase the pulse width.

FIG. 9 (a) illustrates that the first electrical signal S1 having the first level V1 is applied to the first light source unit 210 according to the PAM scheme, so that light emitted from the first light source unit 210 may be emitted. For example, the light guide part may be transferred toward the second light source part 215. The first level V1 may be a minimum level, and thus, only a portion of the light emitted from the first light source unit 210 is guided.

 In FIG. 9A, for convenience of description, the green light emitted from the first light source unit 210 is indicated by diagonal lines in the +45 degree direction, and the closer to the first light source unit 210, the more diagonally. The spacing is shown to be narrower.

In FIG. 9B, the second electric signal S2 having a predetermined level Va is applied to the second light source 215 according to the PAM method, and the light emitted from the second light source 215 is guided. It illustrates that the transmission in the direction of the first light source unit 210 through the portion. The predetermined level Va may be a maximum level, and thus, the second light source 215 illustrates that the amount of light emitted is large.

 In FIG. 9B, for convenience of description, the red light emitted from the second light source unit 215 is indicated by diagonal lines in the −45 degree direction, and the closer to the second light source unit 210, the more diagonally. The spacing is shown to be narrower.

FIG. 9C illustrates that the green light of FIG. 9A and the red light of FIG. 9B are combined. In particular, it can be seen that the position of yellow, which is a synthetic color of red and green, is the first position 610.

Next, FIG. 10 illustrates light displayed by the input apparatus 200 in response to the second time T2 of FIG. 7.

Referring to FIG. 9, first, in FIG. 10A, a first electric signal S1 having a second level V2 is applied to the first light source unit 210 so that the first light source unit 210 receives the first electrical signal S1. For example, the emitted light may be transmitted to the second light source unit 215 through the light guide unit. In this case, the second level V2 is a level greater than the first level of FIG. 9A, and thus, the amount of light emitted from the first light source unit 210 increases compared to FIG. 9.

In FIG. 10B, a second electric signal S2 having a predetermined level Vb is applied to the second light source unit 215 so that the light emitted from the second light source unit 215 passes through the light guide unit. It illustrates the transmission in the (210) direction. In this case, the predetermined level Vb is a level smaller than the level Va of FIG. 9B, and accordingly, the amount of light emitted from the second light source unit 215 is reduced compared to FIG. 9.

FIG. 10C illustrates that the green light of FIG. 10A and the red light of FIG. 10B are synthesized. In particular, it can be seen that the position of yellow, which is a composite color of red and green, is the second position 620.

As described above, FIGS. 11 to 13 illustrate that the amount of light gradually increases as the level of the first electrical signal S1 input to the first light source unit 210 gradually increases to V3, V4, and V5, As the level of the second electrical signal S2 input to the second light source unit 2150 gradually decreases to Vc, Vd, and Ve, the amount of light gradually decreases.

Accordingly, it can be seen that the positions of yellow, which are synthetic colors of red and green, change to the third position 630, the fourth position 640, and the fifth position 650, respectively.

As described above, according to FIGS. 9 to 13, when moving the touch input position, a moving effect or a gradation effect according to the amount of light is generated. Accordingly, the user can feel the interactive effect by the touch input.

9 to 13 illustrate a case in which the touch input progresses from the left to the right, but in contrast, when the touch input progresses from the right to the left, from the fifth time T5 to the first time T1. Conversely, the light amount adjustment can be performed.

On the other hand, when the position of the touch input is located in the first light source unit 210 or in the second light source unit 215, the light source controller 250 includes one of the first light source unit 210 or the second light source unit 215. It may be controlled to turn off either.

For example, when the position of the touch input is located in the first light source unit 210, the light source controller 250 may provide an off signal to the first light source unit 210 so that red light is not emitted from the first light source unit 210. ) Can be supplied. In this case, the second light source unit 215 may emit the light as it is. As a result, the light guide part 230 may emit only the green light emitted from the second light source part 215.

As another example, when the position of the touch input is located in the first light source unit 210, the light source controller 250 may provide an OFF signal to the second light source unit 215 so that the green light is not emitted from the second light source unit 215. It is also possible to supply to. In this case, the first light source unit 210 may emit the light as it is. As a result, the light guide part 230 may emit only red light emitted from the first light source part 210.

Meanwhile, as another example, when the location of the touch input is located in the second light source unit 215, only red light may be emitted. Alternatively, only green light can be emitted.

On the other hand, when a plurality of input keys are displayed on the substrate 205, the light source controller 250 determines that the corresponding input key among the plurality of input keys operates according to the position of the touch input.

As described above, a plurality of input keys such as an input key, a menu key, a volume key, a channel key, and a power key may be displayed on the substrate 205. When the location of the touch input is located on any one of the plurality of input keys, the light source controller 250 determines that there is a corresponding input key operation. The signal is transmitted to the controller (170 of FIG. 23) in the image display apparatus 100 including the input device 200. This will be described later with reference to FIGS. 14 to 16.

14 to 16 illustrate various operations of the image display device corresponding to the position of the touch input.

As described above, with a plurality of input keys such as an input key, a menu key, a volume key, a channel key, and a power key displayed on the substrate 205, as shown in FIG. In the case where it is located at the intermediate position 630 corresponding to the volume key, in particular, when it is located at the volume up (VOL +) key among the volume keys, the audio volume of the image display apparatus 100 is increased as shown in FIG. do. The drawing illustrates displaying an object 710 indicating a volume up.

Next, in a state where a plurality of input keys are displayed on the substrate 205, as shown in FIG. 15A, when the position of the touch input is located at the fourth position 640 corresponding to the channel key, in particular, the channel key In the case of the channel up (CH +) key, as shown in FIG. 15B, the channel of the image display apparatus 100 may increase. The figure illustrates that the channel increases from DTV 7-1 to DTV8-1.

Next, when a plurality of input keys are displayed on the substrate 205, as shown in FIG. 16A, when the position of the touch input is located at the second position 620 corresponding to the menu key, FIG. 16B. As shown in FIG. 2, the menu object 910 may be displayed on the display 180 of the image display apparatus 100. In the drawing, a menu object 910 representing a home menu item, a channel browser item, a recording (DVR) item, and the like are illustrated.

As another example of the menu object, when the image display apparatus 100 is a monitor, it may include a brightness adjustment item, a sharpness adjustment item, an image quality adjustment item, a horizontal position adjustment item, a vertical position adjustment item, or an OSD language adjustment item. It may be.

As such, according to the touch input position, the light synthesized by the input apparatus 200 may be emitted, and thus volume adjustment, channel adjustment, or menu display corresponding to the touch input position may be easily performed. Thus, the usability of the user can be increased. In addition, a power on / off operation of the image display apparatus 100 may be possible.

On the other hand, instead of separately providing a light source for each input key, light corresponding to each input key is displayed using the light source parts 210 and 215 at both ends of the input device 200, so that manufacturing cost can be reduced. do.

17 is a diagram illustrating another example of a fastening structure of the input device of FIG. 1, and FIG. 18 is a diagram illustrating various examples of an optical display according to a touch input position of the input device of FIG. 17.

Referring to the drawings, the light guide part 230 may include a first direction pattern in a direction from the first light source unit 210 to the second light source unit 215, or a second direction in a direction from the second light source unit 215 to the first light source unit 210. It may include at least one of the patterns.

In FIG. 17, a plurality of first direction patterns 1110 are formed in a direction from the first light source unit 210 to the second light source unit 215. The first direction pattern 1110 may be formed in a groove shape or an insertion shape on the light guide portion 230.

On the other hand, unlike the drawing, it is also possible to form a first direction pattern on the substrate 205. In detail, the substrate 205 may be formed on a bottom surface of the substrate 205 in contact with the light guide 230.

As shown in FIG. 18, when the touch input moves from the second position 620 to the fourth position 620 via the third position 630, the light amount of the first light source unit 210 and the light amount of the second light source unit 215 vary. By the first direction pattern 1110, as well as the optical display is synthesized, the directionality can be further increased. As a result, the interactive effect is further increased.

19 to 22 are diagrams illustrating various examples of an optical display according to the intensity of a touch input of the input device of FIG. 1.

In the input device of FIGS. 19 to 22, the first light source unit 210 and the second light source unit 215 are each provided with a plurality of light sources emitting light of different colors.

That is, the first light source unit 210 may include a red light source, a green light source, and a blue light source. The second light source unit 215 may include a green light source, a blue light source, and a red light source.

First, in the Ta period of FIG. 19, when the position of the touch input is the intermediate position 630, when the intensity of the touch input is the strongest (corresponding to the third touch), the first light source unit as shown in FIG. 20. Reference numeral 210 may emit blue light, and the second light source 215 may emit red light.

FIG. 20A illustrates that the first electrical signal S11 having three pulses is applied to the first light source unit 210 according to the intensity of the touch input. Accordingly, blue light is emitted from the first light source unit 210, and the emitted blue light is transmitted toward the second light source unit 215 through the light guide unit. In the figure, blue light is indicated by a horizontal line.

FIG. 20B illustrates that the second electric signal S12 having three pulses is applied to the second light source unit 215 according to the intensity of the touch input. Accordingly, green light is emitted from the second light source unit 215, and the emitted green light is transmitted toward the first light source unit 210 through the light guide unit. In the figure, green light is indicated by diagonal lines in the +45 degree direction.

FIG. 20C illustrates that the blue light of FIG. 20A and the green light of FIG. 20B are synthesized. In particular, at the intermediate position 630, cyan light may be displayed.

On the other hand, when the position of the touch input is variable, at least one of the blue light amount of the first light source unit 210 or the green light amount of the second light source unit 215 is variable, as described with reference to FIG. 7 or the like.

Next, at the time Tb of FIG. 19, when the position of the touch input is the intermediate position 630, when the intensity of the touch input is made medium (which may correspond to the second touch), as shown in FIG. 21, the first light source unit Reference numeral 210 may emit red light, and the second light source 215 may emit blue light.

FIG. 21A illustrates that the second electric signal S13 having two pulses is applied to the first light source unit 210 according to the intensity of the touch input. Accordingly, red light is emitted from the first light source unit 210, and the emitted red light is transmitted toward the second light source unit 215 through the light guide unit. In the figure, red light is indicated by oblique lines in the -45 degree direction.

FIG. 21B illustrates that the second electric signal S14 having two pulses is applied to the second light source unit 215 according to the intensity of the touch input. Accordingly, blue light emitted from the second light source unit 215 is transmitted toward the first light source unit 210 through the light guide unit. In the figure, blue light is indicated by a horizontal line.

FIG. 21C illustrates that the red light of FIG. 21A and the blue light of FIG. 21B are combined. In particular, at the intermediate position 630, magenta light may be displayed.

Next, at the time Tc of FIG. 19, when the position of the touch input is the intermediate position 630, when the intensity of the touch input is minimized (possibly corresponding to the first touch), the first light source unit as shown in FIG. 20. 210 may emit green light, and the second light source 215 may emit red light.

FIG. 22A illustrates that the first electrical signal S15 having one pulse is applied to the first light source unit 210 according to the intensity of the touch input. Accordingly, the green light emitted from the first light source unit 210 is transmitted toward the second light source unit 215 through the light guide unit. In the figure, green light is indicated by diagonal lines in the +45 degree direction.

FIG. 22B illustrates that the second electric signal S16 having one pulse is applied to the second light source unit 215 according to the intensity of the touch input. Accordingly, the red light emitted from the second light source unit 215 is transmitted toward the first light source unit 210 through the light guide unit. In the figure, red light is indicated by oblique lines in the -45 degree direction.

FIG. 22C illustrates that the green light of FIG. 22A and the red light of FIG. 22B are combined. In particular, in the intermediate position 630, yellow light may be displayed.

As a result, by performing at least one of the variable color of the light emitted from the first light source unit or the variable color of the light emitted from the second light source unit, various interactive effects may be realized during touch input.

FIG. 23 is a block diagram illustrating an image display apparatus of FIG. 1.

Referring to FIG. 23, the video display device 100 according to an embodiment of the present invention may be a broadcast display device.

To this end, the image display apparatus 100 may include a broadcast receiver 105, an external device interface 130, a network interface 135, a storage 140, a user input interface 150, and a controller 170. , A display 180, an audio output unit 185, a power supply unit 190, and an input device 200.

The broadcast receiver 105 may include a tuner 110, a demodulator 120, and a network interface unit 130. Of course, if necessary, the tuner 110 and the demodulator 120 may be provided so as not to include the network interface unit 130. On the contrary, the tuner 110 and the network interface unit 130 may be provided. The demodulator 120 may be designed so as not to be included.

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation. The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image / audio signal processing, and the like, the controller 170 outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may connect the external device to the image display device 100. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The network interface unit 135 provides an interface for connecting the image display apparatus 100 to a wired / wireless network including an internet network. For example, the network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network.

The storage 140 may store a program for processing and controlling each signal in the controller 170, or may store a signal-processed video, audio, or data signal.

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130. In addition, the storage 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

The user input interface unit 150 transmits a signal input by the user from the input apparatus 200 to the controller 170 or transmits a signal from the controller 170 to the user.

The input device 200 outputs the synthesized light by combining the light emitted from the first light source unit and the second light source unit, and at least one of the light amount of the first light source unit or the light amount of the second light source unit according to the position of the touch input. The output can be changed.

On the other hand, the input device 200 may output the light amount of the first light source unit and the light amount of the second light source unit in inverse proportion to each other according to the position of the touch input.

The input apparatus 200 may further vary at least one of the light amount of the first light source unit or the light amount emitted from the second light source unit according to the number of touch inputs or the intensity of the touch input.

Meanwhile, the input device 200 may perform at least one of varying the color of the light emitted from the first light source unit or varying the color of the light emitted from the second light source unit, depending on the number of touch inputs or the intensity of the touch input.

Meanwhile, the touch input position information, the touch input count information, the touch input intensity information, or the like of the input apparatus 200 may be input to the controller 170 via the user input interface unit 150.

The input device 200 according to the embodiment of the present invention may be any one of the input devices described above with reference to FIGS. 1 to 22. The description thereof will be omitted with reference to the above contents.

The controller 170 may control to perform an operation corresponding to the touch input from the input apparatus 200.

For example, while a plurality of input keys such as an input key, a menu key, a volume key, a channel key, and a power key are displayed on the substrate 205, volume control is performed as shown in FIG. 14 or as shown in FIG. 15. Channel control or menu object display as shown in FIG. 16. In addition, a power on / off operation of the image display apparatus 100 may be possible.

Meanwhile, the controller 170 may control to display a corresponding object according to the position of the touch input. As illustrated in FIG. 14, an object 710 indicating volume up may be displayed on the display 180, or as illustrated in FIG. 16, the menu object 910 may be displayed. As a result, the user may check an operation associated with the input apparatus 200 through the display 180.

In addition, when the image display apparatus 100 is a monitor, the controller 170 includes brightness adjustment items, sharpness adjustment items, image quality adjustment items, horizontal position adjustment items, vertical position adjustment items, OSD language adjustment items, and the like. The menu object can be controlled to be displayed.

Meanwhile, the controller 170 may demultiplex the input stream or process the demultiplexed signals through the tuner 110, the demodulator 120, or the external device interface unit 130 to output an image or audio output. Can generate and output

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. In addition, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

The voice signal processed by the controller 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

Although not shown in FIG. 23, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 24.

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, a control signal received from the external device interface unit 130 processed by the controller 170, and generates a driving signal. Create

The display 180 may be a projector, a PDP, an LCD, an OLED, a flexible display, or the like. In addition, a three-dimensional display (18D display) may be possible.

The audio output unit 185 receives a signal processed by the controller 170 and outputs the audio signal.

The power supply unit 190 supplies power to the entire image display apparatus 100. In particular, power may be supplied to the controller 170, which may be implemented in the form of a System On Chip (SOC), a display 180 for displaying an image, and an audio output unit 185 for audio output. have.

To this end, the power supply unit 190 may include a converter (not shown) for converting the AC power into DC power. The apparatus may further include a dc / dc converter for level converting the DC power and outputting the level converted DC power.

Meanwhile, a block diagram of the image display apparatus 100 shown in FIG. 23 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 that is actually implemented.

On the other hand, the image display apparatus 100 according to an embodiment of the present invention may be an image display apparatus without a broadcast receiving function, for example, a monitor. In this case, the above-described broadcast receiving unit 105 may not be provided. have.

FIG. 24 is an internal block diagram of the controller of FIG. 23.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 1810, the image processor 1820, the processor 1830, the OSD generator 1840, the mixer 1845 , Frame rate converter 1850, and formatter 1860. In addition, the apparatus may further include a voice processor (not shown) and a data processor (not shown).

The demultiplexer 1810 may demultiplex the input stream and separate the stream into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 1810 may be a stream signal output from the tuner 110, the demodulator 120, or the external device interface unit 130.

The image processor 1820 may perform image processing of the demultiplexed image signal. To this end, the image processor 1820 may include an image decoder 1825 and a scaler 1835.

The image decoder 1825 decodes the demultiplexed image signal, and the scaler 1835 performs scaling to output the resolution of the decoded image signal on the display 180.

The video decoder 1825 may include decoders of various standards.

The processor 1830 may control overall operations of the image display apparatus 100 or the controller 170. For example, the processor 1830 controls the tuner 110 to select a channel selected by the user, or the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150. ) Can be controlled.

The processor 1830 may control operations of the demultiplexer 1810, the image processor 1820, the OSD generator 1840, and the like in the controller 170.

The OSD generator 1840 generates an OSD signal according to a user input or itself. For example, based on a user input signal input through the input apparatus 200, a signal for displaying various types of information on a screen of the display 180 as a graphic or text may be generated. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display apparatus 100.

The mixer 1845 may mix the OSD signal generated by the OSD generator 1840 and the decoded image signal processed by the image processor 1820. The mixed image signal may be provided to the frame rate converter 1850.

The frame rate converter 1850 may convert a frame rate of an input video. On the other hand, the frame rate converter 1850 can output the data as it is without additional frame rate conversion.

The formatter 1860 receives a mixed signal from the mixer 1845, that is, an OSD signal and a decoded video signal, and changes the format of the signal to be suitable for the display 180. For example, the R, G, B data signals may be output, and the R, G, B data signals may be output as low voltage differential signaling (LVDS) or mini-LVDS.

Meanwhile, the formatter 1860 may separate a 2D video signal and a 3D video signal for displaying a 3D video. In addition, the format of the 3D video signal may be changed or the 2D video signal may be converted into a 3D video signal.

The voice processing unit (not shown) in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the voice processing unit (not shown) may include various decoders.

Also, the voice processing unit (not shown) in the controller 170 may process a base, a treble, a volume control, and the like.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel.

Meanwhile, the block diagram of the controller 170 shown in FIG. 4 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

In particular, the frame rate converter 1850 and the formatter 1860 are not provided in the controller 170, but may be separately provided or omitted at all.

25 is a diagram illustrating an image display device having an input device according to another embodiment of the present invention.

Referring to the drawings, the image display device 1900 of FIG. 25 may be a portable terminal including a display 1980 and an input device 200. For example, the mobile terminal 1900 may be a mobile phone, a PMP, an e-book, an MP3 player, a music player, or the like.

In this case, as described above, the input device 200 described with reference to FIGS. 1 to 22 may be applicable to a portable terminal. Accordingly, even in the portable terminal, the interactive effect can be increased by adjusting the amount of light according to the position of the touch input.

On the other hand, the operating method of the input device and the image display device of the present invention can be implemented as a processor-readable code on a processor-readable recording medium provided in the image display device. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (23)

A first light source unit and a second light source unit spaced apart from each other;
A light guide unit configured to synthesize light emitted from the first light source unit and the second light source unit to output the synthesized light;
A touch sensing unit sensing a touch input; And
And a light source controller configured to vary at least one of a first electrical signal transmitted to the first light source unit or a second electrical signal transmitted to the second light source unit according to the touch information sensed by the touch detector. Input device. The method of claim 1,
The light source control unit,
As the touch position information of the touch information is closer to the second light source than the first light source, the level or pulse width of the first electrical signal is further increased, or the level or pulse width of the second electrical signal is increased. Further reducing or further reducing the level or pulse width of the second electrical signal while further increasing the level or pulse width of the first electrical signal. The method of claim 1,
The light source control unit,
And an amount of light of the first light source unit and an amount of light of the second light source unit vary in inverse proportion to each other according to the touch position information of the touch information. The method of claim 1,
The light source control unit,
Among the touch information, the level, pulse width, or period of the first electrical signal is varied or the level, pulse width, or And varying the period, or varying the level, pulse width or period of the second electrical signal while varying the level, pulse width or period of the first electrical signal. The method of claim 1,
The light source control unit,
And classifying touch information sensed by the touch detector into touch location information, touch count information, touch intensity information, or touch duration information. The method of claim 1,
The light source control unit,
When the touch position information of the touch information is the position of the first light source unit or the position of the second light source unit, either the first electrical signal or the second electrical signal is not output or an off signal is output. Input device. The method of claim 1,
And the first light source unit and the second light source unit emit light of different colors. The method of claim 1,
And the first light source unit and the second light source unit each include a plurality of light sources emitting light of a plurality of colors. The method of claim 1,
The light source control unit,
As the position of the touch input is closer to the second light source unit than the first light source unit, the light amount of the first light source unit is further increased, or the light amount of the second light source unit is further reduced, or the first light source unit is further reduced. And increasing the light amount of the light source while reducing the light amount of the second light source unit. The method of claim 1,
The light source control unit,
And when the position of the touch input is located at the first light source unit or the second light source unit, controlling to turn off either the first light source unit or the second light source unit. The method of claim 1,
The light source control unit,
And at least one of an amount of light emitted from the first light source unit or an amount of light emitted from the second light source unit, depending on the number of the touch inputs, the intensity of the touch input, or the duration of the touch input. The method of claim 1,
The light source control unit,
At least one of changing the color of light emitted from the first light source unit or changing the color of light emitted from the second light source unit according to the number of touch inputs, the intensity of the touch input, or the duration of the touch input. Input device. The method of claim 1,
A substrate transmitting and outputting the light synthesized by the light guide portion; And
And a reflective layer disposed under the light guide part and reflecting the light synthesized by the light guide part toward the substrate. The method of claim 1,
The light guide portion,
Coupling the first light source unit and the second light source unit to holes corresponding to the first light source unit and the second light source unit, respectively, transferring the light of the first light source unit toward the second light source unit, and light of the second light source unit; The input device, characterized in that for transmitting in the direction of the first light source. The method of claim 13,
A plurality of input keys are displayed on the substrate,
The light source control unit,
And determining that an input key corresponding to the location information of the plurality of input keys is operated according to the touch location information of the touch information. The method of claim 1,
Further comprising: an access detecting unit for detecting a user's access,
The light source controller is configured to control light to be emitted from at least one of the first light source unit and the second light source unit based on the access detection information detected by the access sensor. The method of claim 1,
The light guide portion,
And at least one of a first direction pattern in the direction of the second light source unit in the first light source unit or a second direction pattern in the direction of the first light source unit in the second light source unit. A first light source unit and a second light source unit spaced apart from each other;
A light guide unit configured to synthesize light emitted from the first light source unit and the second light source unit to output the synthesized light;
A touch sensing unit sensing a touch input; And
And a light source controller configured to control at least one of an amount of light of the first light source unit and an amount of light of the second light source unit according to a position of the touch input. A display for displaying an image;
Synthesizes the light emitted from the first light source unit and the second light source unit, and outputs the synthesized light, and varies and outputs at least one of light emitted from the first light source unit or light emitted from the second light source unit according to the detected touch information. An input device; And
And a controller configured to control to perform an operation corresponding to the position of the touch input. 20. The method of claim 19,
The input device includes:
And an amount of light of the first light source unit and an amount of light of the second light source unit in inverse proportion to each other according to the touch position information of the touch information. 20. The method of claim 19,
The control unit,
And controlling to display an object corresponding to the touch position information among the touch information. 20. The method of claim 19,
The input device includes:
At least one of the amount of light emitted from the first light source unit or the amount of light emitted from the second light source unit may be further varied according to touch position information, touch count information, touch intensity information, or touch duration information of the touch information. Video display device. 20. The method of claim 19,
The input device includes:
According to the touch position information, touch count information, touch intensity information, or touch duration information of the touch information, at least one of the color change of the light emitted from the first light source unit or the color change of the light emitted from the second light source unit is performed. Image display device, characterized in that.

Images