KR20120095187A - Luminous body and touch screen for coordinates cognition using the same - Google Patents

Abstract

PURPOSE: A light emitting material and touch screen for recognizing a coordinate using the same are provided to effectively grasp a plurality of light emitting locations by detecting light signals emitted from a touch area of a touch panel. CONSTITUTION: A touch panel includes light emitting materials(110a-110d). Sensor units(120a-120d) detects a light signal generated from a touch area. The sensor units are arranged at each edge of the touch panel. A control unit(130c) calculates the light emitting location of the touch panel based on scan information of the light signal detected by the sensor unit. The control unit turns off the light emitting material according to a calculation result by calculating the light emitting location. The control unit turns off the light emitting material arranged on the calculated light emitting location.

Description

Luminous body and touch screen for coordinates cognition using the same}

The present invention relates to a light emitter and a coordinate recognition touch screen using the same, and more particularly, to a light emitter capable of easily and accurately grasping a user's touch area input on a touch panel and a touch recognition screen using the same.

Recently, with the rapid development of software, semiconductor technology, and information processing technology, various information devices such as mobile phones, PDAs, computers, etc. are gradually becoming multifunctional, as well as information storage and communication through input of data from information devices. The importance of the reality is also increasing day by day.

Conventionally, in inputting data into the information device, a method of pressing an input key is used, but in recent years, a data input method using a touch screen on the information device has been increasing.

In general, a touch screen is an input device that replaces an input key, a keyboard, and a mouse. The touch screen is mounted on the screen, and the user directly touches the data using a hand or a stylus pen on the screen. It is a device that can be input. Here, the touch screen is a device capable of performing intuitive tasks in a GUI (Graphic User Interface) environment, which is suitable for a portable input device, and can be widely used in computer simulation applications, office automation applications, education applications, and game applications. have.

The input device using the touch screen method basically includes a touch panel attached to a monitor, a controller, a device driver, and an application program. The touch panel is composed of several layers including an electrode glass (ITO glass) and an electrode film (ITO film) that are specially processed to detect a signal input by a user. By using the contact, the display position sensor may detect the contact position on the touch panel.

However, the touch screen using the touch panel as described above has a problem in that it is difficult to identify the corresponding touch area when there are a plurality of inputs touched by the user.

In order to solve the problems of the prior art as described above, the present invention relates to a light emitting body and a coordinate recognition touch screen using the same, in particular, in the case of a single touch is disposed on the touch area on the touch panel, that is, the surface corresponding to the light emitting position of the light source By turning off the light emitters, the power consumption is prevented, and in the case of multi-touch, the light emitters can easily identify a plurality of light emitting positions by turning on all the light emitters arranged to surround the touch panel, and a coordinate recognition touch screen using the same. To provide.

The present invention according to one aspect of the present invention for solving the above problems is a touch panel comprising a plurality of light emitting; A sensor unit disposed at each corner of the touch panel to detect an optical signal generated in a touch area on the touch panel; And a controller configured to calculate a light emitting position on the touch panel based on the scan information of the optical signal detected by the sensor unit, wherein the controller calculates the light emitting position on the touch panel, and at least one according to the calculation result. It is characterized by turning off a light-emitting body.

More preferably, it may include a control unit for controlling to turn off the light emitting body disposed on the surface adjacent to the light emitting position calculated in accordance with the operation result on the touch panel.

A light source unit disposed on both side surfaces of the upper and lower plates formed to be spaced apart from each other by a predetermined distance; A reflective sheet paper disposed to cover an upper portion of the lower plate to receive and reflect a light source generated from the light source unit; It may include a light-emitting body including a; fluorescent material applied to cover the top of the top plate.

In particular, a plurality of grooves formed to have a predetermined interval on the fluorescent material; may be further included.

In particular, it may include a groove further comprising coordinate information displayed at predetermined intervals.

In particular, when exposed to the light source may include a fluorescent material that emits visible light or infrared light.

In particular, it may include a reflective sheet containing glass or acrylic.

More preferably, the sensor module for receiving an optical signal emitted from the light emitter of the touch panel to scan the touch area on the touch panel; And a lens module disposed at the front end of the sensor module, the lens module aligning a reception angle of the optical signal such that the optical signal is received at the center of the sensor module.

More preferably, the calculation module for calculating the light emitting position of the optical signal on the touch panel; An input type determination module that determines whether single input or multi input is performed according to the light emitting position of the optical signal calculated by the calculation module; And a controller including a sensor control module configured to control whether each of the plurality of sensor modules is turned on or off based on a single input or a multi input according to a light emitting position of the optical signal determined by the input type determination module. Can be.

The present invention according to another feature of the present invention for solving the above problems is a light source unit disposed on the side of the upper plate and the lower plate formed to be spaced apart from each other; A reflective sheet paper disposed to cover an upper portion of the lower plate to receive and reflect a light source generated from the light source unit; It includes; fluorescent material is applied to cover the top of the top plate.

More preferably, a plurality of grooves formed to have a predetermined interval on the fluorescent material; may be further included.

More preferably, it may include a groove further including coordinate information displayed at predetermined intervals.

In particular, when exposed to the light source may include a fluorescent material that emits visible light or infrared light.

In particular, it may include a reflective sheet containing glass or acrylic.

The light emitting device of the present invention and the coordinate recognition touch screen using the same detect power coordinates of a touch area input from a user on a touch panel, and turn off the corresponding light body corresponding to the detected touch area, thereby powering the touch screen according to the touch area. There is an effect that can reduce the consumption.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same are arranged so that the optical signal received from the touch area of the touch panel is received by the sensor module center through the lens module provided at the front end of the sensor module of the sensor unit. The sensor unit may more accurately receive the optical signal, thereby accurately grasping the touch area on the touch panel.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same have grooves formed on the surface of the light emitting body provided in the touch panel, so that the light source to emit light along the grooves to improve the luminous efficiency of the light source. There is.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same have reflective sheet paper inside the light emitting body of the touch panel, so that the light source generated from the light source unit is reflected through the reflective sheet paper, thereby improving luminous efficiency of the light source. It can be effective.

1 is a schematic diagram of a coordinate recognition touch screen using a light emitting device according to an embodiment of the present invention.
2A to 2C are configuration diagrams of a light emitter according to an exemplary embodiment of the present invention.
3A to 3B are configuration diagrams of a sensor unit according to an exemplary embodiment.
4 is a schematic diagram illustrating an optical signal reception angle of a sensor unit according to an exemplary embodiment.
5 is a block diagram of a controller according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the present invention will be described in detail with reference to preferred embodiments and accompanying drawings, which will be easily understood by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Hereinafter, the coordinate recognition touch screen using the light emitter according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 1.

1 is a schematic diagram of a coordinate recognition touch screen using a light emitting device according to an embodiment of the present invention.

As shown in FIG. 1, the coordinate recognition touch screen 100 using the light emitter of the present invention includes a touch panel 110, sensor units 120a, 120b, 120c and 120d, and a control unit 130, 130a and 130b. do.

The touch panel 110 has a rectangular shape for receiving a touch area from a user, and includes four light emitters 110a, 110b, 110c, and 110d that emit light when the light source is exposed to correspond to each side of the rectangular shape, respectively. In this case, the four light emitters include a first light emitter 110a, a second light emitter 110b, a third light emitter 110c, and a fourth light emitter 110d based on a clockwise direction.

The sensor units 120a, 120b, 120c, and 120d are disposed at each corner of the touch panel 110 having a rectangular shape, and receive optical signals emitted from the touch panel 110. The sensor parts 120a, 120b, 120c, and 120d are similar to the light emitting body, and the first sensor part 120a, the second sensor part 120b, the third sensor part 120c, and the fourth sensor in the clockwise direction. It consists of a part 120d.

The controller 130c calculates a light emitting position (point A) on the touch panel 110 based on the scan information of the optical signal detected by the sensor units 120a, 120b, 120c, and 120d. The control unit 130c calculates the light emitting position of the touch panel 110 through the horizontal operation control unit 130a based on the scan information detected by the first sensor unit 120a and the second sensor unit 120b. The scan information detected by the sensor unit 1 (120a) and the sensor unit 4 (120d) is calculated through the vertical operation control unit 130b to calculate the light emitting position (point B) of the touch panel 110.

The controller 130 calculates a light emitting position on the touch panel 110 through scan information received from the sensor units 120a, 120b, 120c, and 120d, and then, according to the calculation result, the touch panel 110. The at least one light emitter disposed surrounding the light is turned off. The controller 130 controls to turn off the light emitting members 110a, 110b, 110c, and 110d disposed on the surface corresponding to the calculated light emitting position, that is, the surface adjacent to the calculated light emitting position. In this case, if a plurality of light emitting positions are calculated on the touch panel 110, the controller 130 may drive the light emitters 110a, 110b, 110c, and 110d arranged to surround the touch panel 110. To control.

Hereinafter, the light emitter will be described in more detail with reference to FIG. 2.

2A to 2C are configuration diagrams of a light emitter according to an exemplary embodiment of the present invention.

As shown in FIG. 2A, the touch panels 110a, 110b, 110c, and 110d of the present invention include a light source unit 111, a reflective sheet paper 112, a fluorescent material 113, and a groove 114.

The light source unit 111 is disposed on both sides of the upper and lower plates, respectively, parallel to the upper and lower plates formed to be spaced apart from each other by a predetermined interval, and emits light including at least one LED light source.

The reflective sheet paper 112 is disposed to cover the lower portion of the lower plate, and reflects the light source generated from the light source unit 111. The reflective sheet paper 112 may include glass or acrylic. Accordingly, even if a part of the light source emitted from the side of the upper plate and the lower plate is applied to the lower plate to be totally reflected by the reflective sheet paper 112 disposed on the upper plate to be emitted to the outside. Therefore, there is an effect of improving the luminous efficiency of the light emitting body.

The fluorescent material 113 is coated to cover the top of the top plate, and emits visible light or infrared light when exposed to a light source.

The groove 114 is formed in plural to have a predetermined interval on the upper plate of the fluorescent material is applied. The groove 114 has coordinate information displayed at predetermined intervals so that the user can easily grasp the light emitting position of the touch panel 110, that is, the touch area, as coordinate information through the coordinate information.

In addition, as shown in FIG. 2B, the light emitter 110 is different from the structure shown in FIG. 2A, where the light source 111 is positioned at both sides of the upper and lower plates, and is perpendicular to the upper and lower plates. It has a structure arranged in a state, respectively.

The reflective sheet paper 112 is disposed not only to cover the lower portion of the lower plate, but also disposed above the light source unit 111, and receives and reflects the light source generated from the light source unit 111.

That is, the light source generated from the light source unit 111 emits light in a vertical state, not parallel to the upper and lower plates, and thus the light source emits the reflective sheet paper 112 disposed above the light source unit 111. The light path is changed to be transmitted to the reflective sheet paper 112 disposed on the surface of the lower plate. Accordingly, the light source is changed once again to the outside through the groove 114 formed on the surface of the upper plate. Delivered.

In addition, as shown in FIG. 2C, the light emitters are disposed on both side surfaces of the upper and lower plates formed to be spaced apart from each other by a predetermined distance, and at this time, the fluorescent material 113 to cover the upper part of the upper plate. The grooves 114 and the coordinate information 115a and 115a 'are formed to have a predetermined interval on the upper plate on which the fluorescent material 113 is coated. Accordingly, the light source generated through the light source unit 111 is emitted to the outside through the groove 114 to increase the luminous efficiency, and also through the coordinate information 115a and 115a ', the user touches the touch panel 110. It is possible to easily determine the position where the touch is, that is, the light emission position of the optical signal.

Hereinafter, the sensor unit will be described in more detail with reference to FIGS. 3A to 3B.

3A to 3B are configuration diagrams of a sensor unit according to an exemplary embodiment.

As shown in FIG. 3A, the sensor units 120a, 120b, 120c, and 120d of the present invention include a light source module 121, a lens module 123, a sensor module 125, and a camera module 127.

The light source module 121 includes at least one LED to generate at least one light source.

The lens module 123 receives an optical signal generated at a location touched by a user on the touch panel and transmits the optical signal to the sensor module 125. In this case, the lens module 123 is disposed in front of the sensor module 125 in an elliptical shape to align the reception angle of the optical signal so that the optical signal is received at the center of the sensor module 125.

The sensor module 125 receives an optical signal emitted from the touch panel 110 by the user's touch through the lens module 123 and scans the touched area on the touch panel 110.

The camera module 127 includes the light source module 121, the lens module 123, and the sensor module 125.

Alternatively, as shown in FIG. 3B, the lens module 123 has a structure in which a bar shape is further provided at both ends of an elliptical shape, and a plurality of bars are disposed behind the lens module 123. The light source modules 121 are disposed to overlap each other. Through the structure of the lens module 123, the optical signal generated from the touch panel 110 can be accurately received to the center of the sensor module 125.

Accordingly, the light emission and reception angles of the sensor unit will be described in more detail with reference to FIG. 4.

4 is a schematic diagram illustrating an optical signal reception angle of a sensor unit according to an exemplary embodiment.

As shown in FIG. 4, the sensor units 120a, 120b, 120c, and 120d of the coordinate recognition touch screen 100 using the light emitter of the present invention are disposed to face light sources emitted from a light source module provided therein. Respectively delivered to the luminous body.

For example, the first sensor unit 120a maintains the light source emitted from the light source module therein at a predetermined angle of 45 degrees to the left and right, and the 115b and 115b 'points of the third light emitting body 110c facing each other. Pass the light source.

In addition, the second sensor unit 120b allows the light source emitted from the light source module 121 to maintain a constant angle of 45 degrees on the left and right sides, and the 115a and 115a 'points of the third light emitting body 110c which are also facing each other. Is passed to each.

Therefore, when an optical signal is generated because an area touched by the user exists between the points 115a and 115a 'and 115b and 115b' on the touch panel 110, the first sensor unit 120a and the second sensor unit ( 120b) may check the scan information of the touched area.

Hereinafter, the controller will be described in detail with reference to FIG. 4.

5 is a block diagram of a controller according to an embodiment of the present invention.

As shown in FIG. 5, the controller 130 of the light emitter and the coordinate recognition touch screen using the same according to an embodiment of the present invention includes a calculation module 132, an input type determination module 134, and a sensor control module 136. ).

The calculation module 132 receives the scan information of the light emitting positions from the sensor units 120a, 120b, 120c, and 120d, and based on this, the light emitting positions of the optical signals on the touch panel 110, that is, by the user Calculates coordinate information about the touch area.

The input type determination module 134 determines whether a single input or a multi input is performed on the touch panel 110 based on the coordinate information on the light emission position of the optical signal calculated by the calculation module 132.

The sensor control module 136 is a sensor module of the plurality of sensor units 120a, 120b, 120c, and 120d according to whether the input type determination module 134 determines single input or multi input according to the light emitting position of the optical signal. Each of 125 is controlled.

For example, as illustrated in FIG. 1, when the touch panel 110 is installed in a horizontal direction and used as a single touch, when the A point is touched, the first sensor unit disposed on the horizontal upper portion of the touch panel 110 ( 120a) and the second sensor unit 120b receive the optical signal emitted from the point A and generate scan information for the point A.

Accordingly, the first sensor unit 120a and the second sensor unit 120b transmit the generated scan information of the point A to the calculation module 132 through the horizontal calculation control unit 130a.

Subsequently, through the scan information received by the calculation module 132 of the controller 130, the light emitting position on the touch panel 110, that is, coordinate information about the touch area is calculated.

In addition, the input type determination module 134 of the controller 130 determines that a single touch is input to the touch panel 110 through the coordinate information of the point A calculated previously.

As such, when the input type determination module 134 determines the single touch on the touch panel 110, the sensor control module 136 of the controller 130 is configured to determine the first light emitting body 110a corresponding to the A point. Turn off the drive.

As described above, when the touch panel 110 is installed in the vertical direction and used as a single touch, when the point B is touched, the input type determination module 134 determines that the single touch is input on the touch panel 110. Accordingly, the sensor control module 136 turns off the driving of the fourth light emitting body 110d.

On the other hand, when A point and B point are simultaneously input on the touch panel 110 or when a plurality of points of a new C point need to be recognized, the first sensor part 120a, the second sensor part 120b, and the first point are recognized. The three sensor unit 120c and the fourth sensor unit 120d are driven together to receive scan information about the A point, the B point, and the C point, so that the sensor control module 136 of the controller 130 touches the touch. Controls to drive all of the first light emitting body 110a to the fourth light emitting body 110d disposed surrounding the panel 110.

The light emitting device of the present invention and the coordinate recognition touch screen using the same detect power coordinates of a touch area input from a user on a touch panel, and turn off the corresponding light body corresponding to the detected touch area, thereby powering the touch screen according to the touch area. There is an effect that can reduce the consumption.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same are arranged so that the optical signal received from the touch area of the touch panel is received by the sensor module center through the lens module provided at the front end of the sensor module of the sensor unit. The sensor unit may more accurately receive the optical signal, thereby accurately grasping the touch area on the touch panel.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same have grooves formed on the surface of the light emitting body provided in the touch panel, so that the light source to emit light along the grooves to improve the luminous efficiency of the light source. There is.

In addition, the light emitting device of the present invention and the coordinate recognition touch screen using the same have reflective sheet paper inside the light emitting body of the touch panel so that the light source generated from the light source unit is reflected through the reflective sheet paper, thereby improving luminous efficiency of the light source. It can be effective.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Do.

110: touch panel 110a-110d: light emitter
120a to 120d: sensor unit 130c: control unit

Claims (14)

A touch panel including a plurality of light emitters;
A sensor unit disposed at each corner of the touch panel to detect an optical signal generated in a touch area on the touch panel;
A controller configured to calculate a light emitting position on the touch panel based on scan information of the optical signal detected by the sensor unit;
Including,
The control unit
After calculating the light emitting position on the touch panel, the touch screen for coordinate recognition using the light emitting body, characterized in that for off at least one light emitting body according to the calculation result.
The method of claim 1,
The control unit
The coordinate recognition touch screen using the light emitting body, characterized in that to control to turn off the light emitting body disposed on the surface adjacent to the light emitting position calculated on the touch panel.
The method of claim 2,
The light emitter
A light source unit disposed on side surfaces of the upper and lower plates formed to be spaced apart from each other by a predetermined distance;
A reflective sheet paper disposed to cover an upper portion of the lower plate to receive and reflect a light source generated from the light source unit;
A fluorescent material applied to cover the top of the top plate;
Coordinate recognition touch screen using a light emitting body comprising a.
The method of claim 3,
Coordinate recognition touch screen using a light-emitting body, characterized in that it further comprises; a plurality of grooves formed to have a predetermined interval on the fluorescent material.
The method of claim 4, wherein
The home is a coordinate recognition touch screen using a light emitting body, characterized in that further comprises coordinate information displayed at predetermined intervals.
The method of claim 3,
The fluorescent material is
When the exposure to the light source, the coordinate recognition touch screen using a light emitter, characterized in that for emitting visible light or infrared light.
The method of claim 3,
The reflective sheet paper
Coordinate recognition touch screen using a light-emitting body characterized in that it comprises glass or acrylic.
The method of claim 1,
The sensor unit
A sensor module configured to scan the touch area on the touch panel by receiving an optical signal emitted from the light emitter of the touch panel;
A lens module disposed at a front end of the sensor module to align a reception angle of the optical signal so that the optical signal is received at the center of the sensor module;
Coordinate recognition touch screen using a light emitting body comprising a.
9. The method of claim 8,
The control unit
A calculation module for calculating a light emitting position of an optical signal on the touch panel;
An input type determination module that determines whether single input or multi input is performed according to the light emitting position of the optical signal calculated by the calculation module;
A sensor control module configured to control whether each of the sensor modules is turned on or off based on a single input or a multi input according to a light emitting position of the optical signal determined by the input type determination module;
Coordinate recognition touch screen using a light emitting body comprising a.
A light source unit disposed on side surfaces of the upper and lower plates formed to be spaced apart from each other by a predetermined distance;
A reflective sheet paper disposed to cover an upper portion of the lower plate to receive and reflect a light source generated from the light source unit;
A fluorescent material applied to cover the top of the top plate;
Light emitting body comprising a.
The method of claim 10,
And a plurality of grooves formed to have a predetermined distance on the fluorescent material.
The method of claim 11,
And the groove further includes coordinate information displayed at predetermined intervals.
The method of claim 10,
The fluorescent material is
A light emitter, characterized in that when the exposure to the light source emits visible light or infrared light.
The method of claim 10,
The reflective sheet paper
A light emitter comprising glass or acrylic.

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