KR20130038613A - Method and device for dynamically changing size of display area in response to grip - Google Patents

Abstract

PURPOSE: A method for dynamically converting a size of a display screen in response to a grip and a device thereof are provided to dynamically enlarge and reduce an active area in which the screen is displayed, thereby supplying a wide display screen suitable for a device operation situation. CONSTITUTION: A detection unit detects touch input in a predetermined area. A conversion unit converts a part of an active area(90) in which content is displayed into a dead area(90b) in which the content is not displayed. A change unit changes a size of a living area(90a) in the active area based on a size of the dead area. Current content is displayed in the living area. The current content displayed on the living area is resized in comparison to a resizing rate of the living area by generating the dead area.

Description

METHOOD AND DEVICE FOR DYNAMICALLY CHANGING SIZE OF DISPLAY AREA IN RESPONSE TO GRIP}

The present invention relates to a method and apparatus for actively converting an image display area of a display device when holding a display device with a finger of a user's body or the like, and more particularly, A dynamic picture size conversion method and apparatus for displaying an image in which a screen is not changed in a finger area by detecting a position and displaying a content which is displayed as if a non-visible area fixed from the beginning is installed and changed in a non- .

Generally, a touch screen panel is attached to a display device such as a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting diode (OLED), or an active matrix organic light emitting diode (AMOLED) And is an input device that generates a signal corresponding to a position when an object such as a finger or a pen is touched. Touch screen panels are used in a wide range of applications, such as small portable terminals, industrial terminals, and digital information devices (DIDs).

Conventionally, various types of touch screen panels have been disclosed, but a resistive touch screen panel having a simple manufacturing process and a low manufacturing cost is most widely used. However, since a resistive touch screen panel has low transmittance and pressure must be applied, it is inconvenient to use, difficulty in multi-touch and gesture recognition, and detection errors.

In contrast, the capacitive touch screen panel has a high transmittance, a soft touch can be recognized, and multi-touch and gesture recognition have advantages of expanding the market.

1 shows an example of a conventional capacitive touch screen panel. Referring to FIG. 1, a transparent conductive film is formed on upper and lower surfaces of a transparent substrate 2 made of plastic, glass, or the like, and a voltage applying metal electrode 4 is formed at each of four corners of the transparent substrate 2. The transparent conductive film is formed of a transparent metal such as indium tin oxide (ITO) or antimony tin oxide (ATO). The metal electrodes 4 formed at four corners of the transparent conductive film are formed by printing a conductive metal having a low resistivity such as silver (Ag). A resistance network is formed around the metal electrodes 4. The resistance network is formed in a linearization pattern in order to transmit control signals evenly over the entire surface of the transparent conductive film. A protective film is coated on the transparent conductive film including the metal electrode 4.

In the capacitive touch screen panel as described above, when an alternating current voltage of high frequency is applied to the metal electrode 4, the capacitive touch screen panel spreads on the front surface of the transparent substrate 2. At this time, when the transparent conductive film on the upper surface of the transparent substrate 2 is lightly touched by the finger 8 or the conductive touch input means, a certain amount of current is absorbed into the body and the current sensor built in the controller 6 detects a change in the current. The touch points are recognized by calculating the amount of current in each of the four metal electrodes 4.

However, the capacitive touch screen panel as shown in FIG. 1 is a method of detecting the magnitude of the micro current, and thus requires an expensive detection device, which increases the price and makes it difficult to multi-touch to recognize a plurality of touches.

In order to overcome this problem, the capacitive touch screen panel as shown in FIG. 2 is mainly used. The touch screen panel of FIG. 2 includes a linear touch pad 5a in the horizontal direction, a linear touch pad 5b in the longitudinal direction, and a touch drive IC 7 for analyzing a touch signal. The touch screen panel detects the magnitude of the capacitance formed between the linear touch pad 5 and the finger 8, and scans the horizontal touch pad 5a in the horizontal direction and the linear touch pad 5b in the longitudinal direction. By detecting the signal, a plurality of touch points can be recognized.

3 shows an embodiment in which a conventional capacitive touch screen panel is installed on an LCD. The display device 200 has a structure in which a liquid crystal is sealed between the lower TFT substrate 205 and the upper color filter 215 to form the liquid crystal layer 210. In order to seal the liquid crystal, the TFT substrate 205 and the color filter 215 are bonded by the sealant 230 at the outer portion thereof. Although not shown, a polarizing plate is attached to the upper and lower sides of the liquid crystal panel, and in addition, a BLU (Back Light Unit) is installed.

A touch screen panel is installed on the display device 200 as shown. The touch screen panel has a structure in which the linear touch pad 5 is mounted on the upper surface of the substrate 1. A protective panel 3 is attached to the substrate 1 to protect the linear touch pad 5. The touch screen panel is attached to an edge portion of the display device 200 through an adhesive member 9 such as a double adhesive tape (DAT), and forms an air gap 9a between the display device 200.

Figure 4 is another embodiment of a capacitive touch screen panel that recognizes a plurality of touch points.

The touch screen panel 50 has an active area 90 in which a screen of the display device 200 is displayed and an invisible area 92 in which no screen is displayed and a touch screen panel 50 are attached, the active area 90 is provided with a touch pad 10 for detecting a touch. The touch pad 10 of FIG. 4 has the same structure as an isolated island and has 7 lines (R1 to R7) in the horizontal direction and 5 lines (C1 to C5) in the vertical direction. The touch screen panel 50 of FIG. The touch signal detected by the individual touch pad 10 is transmitted to the touch drive IC 30 mounted on the flexible circuit board 96 through the sensor signal line 22.

The touch pad 10 of Fig. 4 has unique position information. For example, there are touch pads 10 having position coordinates of (R1, C1) and touch pads having position coordinates of (R7, C5). As described above, since all the touch pads 10 of FIG. 4 have unique position coordinates, it is possible to simultaneously detect 35 touch inputs.

When the touch screen panel as shown in FIG. 3 or 4 is installed on the upper surface of the display device 200 and the user uses the touch screen panel and the touch screen panel attached to the display device is wide and heavy, You must hold the device with the touch screen panel by hand. In order to hold the device by hand, there must be a physical non-visible area on the periphery of the active area, since the visible area where the contents of the display device is displayed by the hand should not be obscured by hand when using such a device by hand. This invisible area is not an area where the screen is displayed, but exists in the upper, lower, left, and right edges of the display device, and is usually treated as a black-based fixed color. The user can use such a non-visible area by hand to perform a car racing game based on the motion sensor included in the device, or to use the device as a steering wheel of a car, or to hold the active area of the display device by hand It will not be disturbed.

However, such a physical non-visible area is always present even when the device is not held by hand, for example, when the device is placed on a desk and the device is placed on the palm of a hand.

The present invention has been proposed in order to solve the problem of a conventional touch screen panel in which a physical non-visible area is formed as described above. In the conventional touch screen panel, a non-visible area for holding a device by hand is removed, A panel is attached, and the touch of the finger for gripping the device is detected using the touch screen panel. Based on the touch signal detected by the touch screen panel, a holding area based on the image signal is set at the edge portion of the display screen. The grip area is displayed in a predetermined color or pattern only when the grip is detected, and is switched to a part of the display screen when the grip is not detected. According to the above-described configuration, since a wide display screen is provided when the user does not grasp it, a high user-friendliness and a large display area are provided in comparison with the prior art in which a physical non-visible area is formed.

According to a first aspect of the present invention, there is provided a method of dynamically changing a size of a display screen in response to a grip of a display device providing a touch input, comprising the steps of: a) Sensing a touch in a predetermined area of the touch screen; b) if a touch in the predetermined area is sensed, switching part of the active area into a dead area in which the content is not displayed based on the area of the touch; And c) changing the size of the live area in which the current content is displayed in the active area based on the size of the dead area.

The dead zone may output a predetermined color or pattern without inputting a touch input capable of controlling the content.

In addition, the dead area may be formed symmetrically in the horizontal or vertical direction on the edge of the active area.

The dead zone may be formed such that the aspect ratio of the live region is a predetermined ratio.

Here, the content displayed in the live area can be resized in proportion to the resize ratio of the live area due to the generation of the dead area.

In addition, when the content displayed in the live area is being operated by touch input, the resizing of the content may be interrupted or delayed.

Here, the step b) may be performed when a touch is detected for a predetermined threshold time.

In addition, the step b) may be performed when a touch over a threshold area is sensed.

In addition, the step b) may be performed when a change amount of a touch over a threshold area is sensed.

The step b) may include selecting one of the plurality of touches based on a predetermined priority and generating a dead area corresponding to the selected touch when a plurality of taps are detected.

In addition, the width of the dead area may be variable based on the touch area or the touch position.

In addition, the width of the dead zone may have a predetermined limit value.

The method may further include expanding the live area to the active area when the touch in the dead area is released.

An electronic device including a touch input unit and a screen display unit according to a second aspect of the present invention includes: means for detecting a touch input in a predetermined area; Means for switching a part of the active area in which the content can be displayed on the screen display part to a dead area in which the content is not displayed based on the touch detected in the predetermined area; And means for changing the size of the live area in which the current content is displayed based on the size of the dead area in the active area.

The dead zone may output a predetermined color or pattern without inputting a touch input capable of controlling the content.

In addition, the dead area may be formed symmetrically in the horizontal or vertical direction on the edge of the active area.

Here, the content displayed in the live area can be resized in proportion to the resize ratio of the live area due to the generation of the dead area.

Here, the touch detection means may include: a touch pad that forms a touch capacitance (Ct) with the touch input means; A driving capacitor Cdrv having one side connected to the touch pad and a driving voltage for touch detection applied to the other side; A detector for detecting a common voltage generated in the display device; A driving voltage generator for generating a driving voltage in synchronization with the common voltage; And a touch sensor connected to the touch pad and detecting a touch signal by using a driving back phenomenon when the touch capacitance Ct is added to the driving capacitor Cdrv according to whether or not the touch input unit is touched, And a detection unit.

When the touch in the dead area is released, the dead area is released so that the live area can be expanded to the active area.

The electronic device may further include setting means for fixing the dead zone without releasing the dead zone.

The electronic device may further include means for variably changing a width of the dead zone based on the touch area.

Here, the width of the dead zone may vary when the window of the touch coordinates or the touch coordinates of the predetermined size is exceeded.

The electronic device may further include means for setting a color or a pattern of the dead zone.

Here, the touch area may be determined by a point at which a touch is sensed.

The apparatus may further comprise means for not generating the dead area even if a touch occurs to an area having a predetermined width from the edge of the active area.

The electronic device according to claim 1, further comprising: means for not generating the dead zone or not performing resizing of the content even if a touch occurs in an area having a predetermined width from the content that can be input to the live area.

A touch screen input device according to a third aspect of the present invention includes: means for detecting a touch input in a predetermined area; And means for generating a signal for switching a part of the active area in which the content can be displayed to a dead area in which the content is not displayed based on the detected touch in the predetermined area, The size of the live area in which the current content is displayed is changed within the active area based on the size of the dead area.

In this case, a touch input for controlling the content in the dead area may be ignored.

Here, the dead area may be formed symmetrically in the horizontal or vertical direction on the edge of the active area.

Also, the content displayed in the live area can be resized in proportion to the resize ratio of the live area due to the generation of the dead area.

According to the above-mentioned solution, the present invention can dynamically enlarge / reduce the active area in which the screen is displayed based on whether or not the user grasps the screen. Therefore, The device to which the invention is applied can be made smaller in comparison with the device of the prior art which provides a display screen of the same size, so that the portability is increased, the weight is reduced, and the cost is reduced.

1 is a perspective view showing an example of a conventional touch screen panel.
Figure 2 is a plan view showing another example of a conventional touch screen panel.
3 is a cross-sectional view illustrating an example in which the touch screen panel of FIG. 2 is installed on a display device.
4 is a diagram illustrating an example of a touch panel applicable to an embodiment of the present invention.
5 is a diagram illustrating a region configuration according to an embodiment of the present invention.
6 and 7 are cross-sectional views of an apparatus implemented in accordance with an embodiment of the invention.
8 is a diagram illustrating a principle of detecting a touch area.
9 illustrates a touch detection circuit according to an embodiment of the present invention.
FIG. 10 illustrates an example in which a touch occurs on a touch pad according to an embodiment of the present invention. FIG.
11 is an exploded perspective view of the device according to an embodiment of the present invention.
12 illustrates an example of changing a size of a display screen according to an embodiment of the present invention.
13 is a view for explaining a live area according to an embodiment of the present invention;
14 illustrates generation of a dead region when a plurality of touches occur in accordance with an embodiment of the present invention.
15 shows an exception area of occurrence of a dead area according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments.

First, the present invention relates to a method and an apparatus for converting the size of a screen area responsive to gripping, and a display device incorporating such an apparatus.

The display device referred to in the present invention is any one of LCD, PDP and OLED, and means any means for displaying other images. OLEDs are collectively referred to as AMOLEDs and PMOLEDs.

The present invention detects contact or noncontact touch input of touch input means (hereinafter, object or Object) having a finger or similar electrical characteristics. Here, the term "noncontact touch input" means touch input in a state where an object, which is touch input means such as a finger, is spaced apart by a predetermined distance between a touch pad and an object. The object can be brought into contact with the outer surface of the protective substrate. In this case, however, the object and the touch pad remain in a non-contact state. Accordingly, the touching behavior of the object with respect to the touch pad can be expressed by the term "approach ". On the other hand, since the finger may be in contact with the outer surface of the protective substrate, the touching action of the finger with respect to the protective substrate may be expressed by the term "contact ". As used herein, the terms "approach" and "contact"

In addition, configurations such as "parts" described below are collections of unit function elements that perform specific functions. For example, an amplifier of a signal is a unit function element, and an amplifier or signal converters are collected. The aggregate may be named as a signal converter. Also, "part" may be included in a larger element or "part, " or may include smaller elements and" parts. &Quot; Also, "part" may have its own CPU.

In the following drawings, thicknesses and regions are enlarged to clearly show layers and regions. Like reference numerals are used for like parts throughout the specification. When a part of a layer, an area, a substrate, or the like is referred to as being "on" or "on" another part, it includes not only the case where it is "directly on" another part but also the case where there is another part in the middle. Conversely, when a part is "directly over" another part, it means that there is no other part in the middle.

In addition, "signal" described herein refers to voltage or current, unless otherwise specified.

In the present specification, the term "capacitance" refers to a physical size and is used in the same sense as "capacitance ". On the other hand, a "capacitor" refers to an element having a capacitance that is a physical size. Capacitance is created by designed values and processes, or indirectly, as it is naturally produced between two parallel signal lines at arbitrary distances. In the present specification, both the directly formed capacitor and the indirectly formed capacitor are referred to as "capacitors ".

In the present specification, the term " forcing "means that the level of a signal which has already been maintained is changed or connected to a signal in a floating state. For example, the signal applied to the on / off control terminal of the switching element may be used to mean that the existing low level voltage is changed to a high level, Off control terminal of the switching element of the switching element in order to apply a certain voltage for turning on / off the switching element.

In the present invention, the touch drive IC (Touch Drive IC) is shortened to TDI.

Further, in the present invention, when a touch is not generated, a voltage by a driving bag (D / B) is detected, and when a touch occurs, a voltage by D / B is detected, And the contact area of the touch means is determined. Therefore, the meaning of detecting the voltage due to the D / B phenomenon and the meaning of detecting the touch signal are used in the same manner.

In the specification of the present invention, a "live area (L / A)" is an area in which a content is activated and displayed in real time on a display unit of the apparatus, and an area in which the size thereof can be dynamically changed it means.

In the specification of the present invention, the term "dead area (D / A)" means a region where no content is displayed on the display unit and a touch input for controlling content other than the size change do. Here, it should be noted that the dead zone is not physically formed, but may be varied in size or created and destroyed in response to the user's gripping, as part of the touch screen panel and the display unit.

In the specification of the present invention, "active area (A / A)" is an area where both touch input and screen display are possible, and may include both the live area and the dead area.

5 is a reference diagram for explaining an area of an apparatus according to an embodiment of the present invention.

The active area 90 of the device 200 according to one embodiment of the present invention is set to the entire screen opposite to the user. If the edge of the active area is grasped by the user's contact means 25 in a situation where the entire active area 90 outputs a content as a live area state, the device 200 detects the grasped state, (90b). As the dead zone 90b is created, the size of the live area 90a is reduced. The dead area 90b outputs a monochrome frame such as black in the edge portion of the screen and does not receive the touch input for controlling the content output to the live area 90a. As if it were a physical invisible area for gripping in a prior art touch screen device.

On the other hand, if the grip is released and the grip is not detected, the live area 90a will be extended to the entire active area 90 to provide a wider screen.

The method of dynamically changing the size of the live area 90 in accordance with the detection of the finger is referred to as " active resizing (A / R) "in the present specification. A / R corresponds to a method of dynamically changing the size of a display screen according to an embodiment of the present invention.

FIG. 6 is a cross-sectional view of an apparatus for implementing the present invention, and FIG. 7 is a cross-sectional view showing another example of an apparatus for implementing the present invention. Fig. 6 illustrates an apparatus when the touch pad 10 is mounted on a substrate formed separately from the display apparatus, and Fig. 7 illustrates an apparatus when the touch pad 10 is embedded in the display apparatus. 6 and 7, the configuration of an apparatus for implementing the present invention will be described below.

The display device of FIG. 6 has an LCD substrate as an example. The display device 200 shown in FIG. 6 has a structure in which a liquid crystal is sealed between a lower TFT substrate 205 and an upper color filter 215 to form a liquid crystal layer 210. In order to seal the liquid crystal, the TFT substrate 205 and the color filter 215 are bonded by the sealant 230 at the outer portion thereof. Although not shown, a polarizing plate may be attached to the upper and lower sides of the liquid crystal panel, and in addition, optical sheets constituting a BLU and a brightness enhancement film may be installed together with the BLU.

The touch screen panel 50 is installed on the display device 200 as shown in the figure. In the example of Fig. 6, the touch screen panel 50 is attached to the upper portion of the display device 200 via an adhesive member 57 such as a double adhesive tape (DAT) An air gap 58 is formed between the touch screen panel 50 and the display device 200 or filled with the contact member 58. The contact member 58 is a material for attaching the touch screen panel 50 and the display device 200, such as transparent silicon, optically clear adhesive (OCA), or adhesive resin (Resin).

In the drawings, reference numeral 24 denotes a protective layer 24 for protecting the touch pad 10, and glass, plastic, vinyl, or cloth is used.

7 shows another embodiment of the touch pad configuration in which the touch pad 10 is incorporated in the display device. Referring to FIG. 7, the touch screen panel 50 may be formed on the upper surface of the color filter 215, which is a part of the display device. As illustrated, the common electrode 220 is formed under the color filter 215, and the touch pad 10 is patterned on the upper surface of the color filter. In the embodiment of Fig. 7, the protective layer 24 is replaced by a polarizer.

A common electrode 22 is provided on the bottom surface of the color filter 215 shown in FIG. 6 or 7, and a DC voltage having an alternating current or a constant potential is applied to the common electrode.

It is preferable that the touch signal is detected as an area when detecting a touch signal for realizing active resizing (A / R) of the present invention. This is because it is easy to adjust the area of the dead area in proportion to the grip area when gripping the edge of the active area of the display device (hereinafter referred to as A / A).

Before explaining the method of detecting the touch area, the principle of detecting touch input in the present invention will be briefly described with reference to Fig. 8, when the object 25, which is a finger 25 or similar conductive touching means, approaches the touch pad 10, the touch pad 10 and the object 25 are spaced apart from each other by an interval of "d " , And it has an opposite area of "A". Then, a capacitance "C" is formed between the object 25 and the touch pad 10 as shown in the right equivalent circuit and the expression of Fig. When a charge having a magnitude of the quantity of charge "Q " is accumulated in a capacitor having a magnitude of capacitance" C " by supplying a voltage or current signal to a signal input line of the touch pad 10 having a capacitance "C & = Q / C, the charge can be accumulated.

An isolated island-type touch screen panel 50 as shown in FIG. 4 is used for the description of the touch signal detection for the A / R implementation of the present invention, but this is an embodiment and may be a resistive, optical, As shown in FIG. 2, various types of touch screen panels such as an electrostatic touch screen panel having a mutually intersecting structure may be used.

The touch pad 10 constituting the touch screen panel 50 of FIG. 4 is connected to a Touch Drive IC (hereinafter, referred to as TDI) through a connected sensor signal line 22. In the TDI 30, a circuit for detecting a touch signal is configured by the touch pad 10, and FIG. 9 shows an embodiment of the configuration of the touch detection circuit constructed in the TDI 30. In FIG. The touch pad 10 is connected to the output section 12-1 of the switching element 12 and the switching element 12 is used as the charging means 12 for precharging the potential at the point P to Vpre. The switching device used as the charging means 12 has a three-terminal structure, and has an input terminal, an output terminal, and on / off control means. The charging means 12 controls the turn-on and turn-off of the switching elements in synchronization with the Hi or Low signal applied to the on / off control means. For example, when the voltage Vg, which is a high state, is applied to the gate of the on / off control means, the drain and the source are connected to each other, and Vpre Is output to the source section. One or a plurality of such switching means are interconnected to perform the function of the charging means 12. For example, two NMOSs connected in parallel by an on / off control signal applied to a gate terminal and two NMOSs connected in parallel will operate as a single switch.

As illustrated in FIG. 8, when the object 925 is positioned on the conductive pad 10, a capacitance called Ct is formed between the conductive pad 10 and the object 25, and the same conductive pad 10 and the common electrode ( Cvcom, which is a common electrode capacitance, is also formed between the 220 and a common voltage Vcom is applied to one side of the Cvcom. Ct and Cvcom can be equivalent to each other at the point P by mutual parallel connection. One side of the Ct connected to the point P has a ground potential held by the object 25, and one side of the Cvcom connected to the point P is grounded . Therefore, if the ground potential or the potential of Vcom held by the object 25 is alternated, the potential at the point P will also be alternated.

In the TDI 30, an auxiliary capacitor Cdrv is provided for detecting a touch signal. One side of Cdrv is connected to the point P and a driving voltage (driving voltage) called Vdrv is applied to the other side. The driving voltage Vdrv is an alternating voltage, and a square wave, a triangular wave, a sine wave, or the like is used. The driving voltage is an alternating voltage or a non-periodically alternating voltage at regular intervals. The driving voltage alternates between a low voltage and a high voltage. For example, when the low voltage is 1V and the high voltage is 5V, the magnitude of the driving voltage is 4V and the driving voltage alternates between 1V and 5V periodically or aperiodically. The low voltage and the high voltage of the driving voltage are variable. Therefore, the size of the driving voltage can be varied by setting of a register capable of varying the magnitude of the driving voltage. The TDI 30 has means for varying the magnitude of the driving voltage, and the magnitude of the driving voltage can be varied by such means.

The touch detection unit 14 is a region for detecting a touch signal and is a buffer 14-1 or an amplifier 14-2 or a DAC 14-3 or a reference voltage 14-4 or an ADC conversion unit 14-5, And the like. The touch signal detected by the buffer 14-1 is amplified by the amplifier 14-2 and digitally output from the ADC conversion unit 14-5. In the ADC conversion process, a reference voltage or a signal output from the DAC 14-3 is used.

4, sensor signal lines are disposed on the left and right of any sensor signal line 22, or the touch pad 10 is positioned on the left and right of the arbitrary sensor signal line 22, and parasitic capacitance Capacitor), which is collectively referred to as Cp. Cp is connected at one end to the point P and ground at the other end. Since the ground potential connected to Cp is dependent on the potential of the constituent elements disposed on the right and left, various potentials can be formed. Therefore, the ground symbol connected to Cp in Fig. 9 means that it is not a fixed one ground potential and can be connected at various ground potentials.

In order to detect a touch signal in the touch detection circuit of Fig. 9, the potential at the point P is precharged to a voltage having a magnitude of Vpre. After the pre-charge, the signal applied to the on / off control terminal of the charging means 12 is controlled to turn off the charging means 12, whereby the buffer 14 having an input of high impedance (Hi-z) -1), the point P becomes a Hi-z state having a potential of Vpre.

When the point P is Hi-z, the potential of the point P is formed by the alternating driving voltage Vdrv as follows.

≪ Formula 1 >

(T) is the voltage detected in the buffer 14-1 of the touch detection unit 14 when the touch is not made and? Vsensor (tc) is the voltage detected in the buffer 14- 1, Vpre is the precharge voltage, Vdrv is the magnitude of the driving voltage applied to the auxiliary capacitor Cdrv, which is the difference between the high voltage and the low voltage, Cvcom is the common electrode capacitance, Cp is the floating Capacity, and Ct is the touch capacitance.)

In Equation (1), when Ct is not formed, that is, when no touch occurs, when the touch is generated and Ct is formed, the voltage detected by the touch detection unit 14 is described as follows.

&Quot; (2) "

When Vdrv is changed from low to high voltage,? Vsensor of Equation 1 or Equation 2 becomes higher than Vpre, and the potential of Equation 1 or Equation 2 is lower than Vpre when Vdrv is changed from high to low do. When Vdrv varies from low to high, Equation 1 and Equation 2 are specified as follows.

<Equation 1-1>

<Formula 2-1>

The? Vsensor detected by the touch detection unit 14 is input to an operator (not shown) or a CPU (not shown) via an amplification process and a digital conversion process. The operator or the CPU can calculate the difference between the result of Equation 1 which is the value when there is no Ct and the difference of Equation 2 when Ct exists and extract the touch area or the touch area.

Assuming that Vpre, Cdrv, Cvcom, Cp, and Vdrv are fixed values, it is possible to calculate the size of Ct in Equation (1) and Equation (2). In Equation 1, the size of Vpre, Vdrv, or Cdrv is a size that can be arbitrarily set by the user, but Cvcom or Cp is a value determined by matching the structure of the touch screen panel 50 with the display device 200 . Accordingly, it is possible to calculate or extract the size of Cp or Cvcom under the condition that the manufacture of the touch screen panel 50 is completed and the non-touch by matching with the display device 200, and the value of? Vsensor (nt) Can also be detected. When Cp or Cvcom obtained through Equation (1) is substituted into Equation (2), it is possible to extract the capacitance of Ct by combining with the detected? Vsensor (tc). The touch capacitances Ct can be extracted based on ΔVsensor (nt), Cp or Cvcom, which is detected or computed when no touch is detected, and calculation is performed for this.

Referring again to Fig. 7, the capacitance C is proportional to "A" of the contact surface between the object 25 and the touch pad 10. [ At this time, when the display device 200 and the touch screen panel 50 are assembled together, the distance d and the dielectric constant epsilon are fixed values and do not vary, so that when k = epsilon / d, 3>.

&Quot; (3) &quot; A = kCt

(Where A is the contact area between the object 25 and the touch pad 10, Ct is the touch capacitance formed between the object 25 and the touch pad 10, and k is a proportional constant)

The operator or CPU computes the touch area "A " based on Ct.

If an object 25 having a smaller area than the touch pad 10 in the touch screen panel 50 as shown in FIG. 4 is in contact with one touch pad 10 and a touch occurs, the touch pad 10 Since the touch area corresponding to Equation (3) is extracted, it is possible to determine whether or not the touch is performed. However, since the object 25 having a larger area than the touch pad 10 is in contact with the plurality of touch pads 10 and the touch occurs in the plurality of the touch pads 10, .

It is possible to calculate Ct by the voltage detected at the point P of the touch detection circuit of FIG. 9 or the output terminal of the buffer 14-1. In addition to the calculation of the touch area using the value output from the ADC conversion section 14-5 It is also possible to do. Equation 1 is amplified by the amplifier 14-2 and output from the ADC conversion unit 14-5 and amplified by the amplifier 14-2 to be output from the ADC conversion unit 14-5 , It is possible to extract Ct from the value output from the ADC conversion unit 14-5 in the same manner as described above. The values extracted from the ADC converting unit 14-5 are used when the touch area is calculated by using the values output from the ADC converting unit 14-5, as described above.

In one embodiment of the present invention, the touch detection and the calculation of the touch area may be performed according to the method of the applicant's Korean Patent Application No. 10-2011-0019867. Some or all of the contents of this application may be incorporated into embodiments of the present invention.

Fig. 10 shows an embodiment in which a touch occurs in a plurality of touch pads 10. Fig. 10 is a touch screen panel 50 composed of 35 touch pads 10 composed of seven rows in the horizontal direction and five columns in the vertical direction. A finger as an object 25 is in contact with ten touch pads 10 and a relative touch area value is included in the touch pad 10. [ The operator and the CPU can obtain the coordinates of the center of gravity of the area formed by summing the areas of the adjacent touch pads 10, and the coordinates of the center of gravity obtained at this time is the touch coordinates of the object 25. At this time, since the center of gravity of the total area is changed linearly by the movement of the object 25, the touch coordinates of the object 25 change linearly.

Although it is possible to detect the touch coordinates by the center of gravity when a touch occurs between the object 25 and the plurality of touch pads 10, it is also possible to detect the boundary where touch occurs. The area of coordinates corresponding to {R3, C1} in Fig. 10 is 4. 10, it is assumed that the center of gravity of the total area of the ten touch pads 10 is present in an arbitrary area of the touch pad 10 corresponding to {R2, C2}. Can be expected to exist in the area on the right side of the touch pad 10 corresponding to {R3, C1}. Since the area where the touch pad is present can be known with the center of gravity as the axis, it is possible to calculate the boundary where the touch occurs when the touch occurs on the touch pad 10. [

Next, a method of converting the size of the screen area according to the present invention will be described with reference to FIGS. 11 to 13 as examples.

FIG. 11 is an exploded perspective view of an apparatus to which the A / R method of the present invention is applied. FIG. 11 is a perspective view of a touch screen panel 50 including a display device 200, a plurality of touch pads 10 and a sensor signal line As in the embodiment of FIG. The display apparatus 200 includes an invisible region 93, which is a minimum region for disposing a gate signal line or a source signal line of a common electrode or a pixel. Meanwhile, according to the embodiment of the present invention, there is no metal wiring to be concealed in the touch screen panel because the resistance does not act as a variable in the touch detection. Therefore, if the arrangement of the common electrode and the signal line of the above-described display device can be concealed, the substantially invisible area 92 may not exist.

An unshown backlight unit may be added to the display device 200. [ In addition, an operation processor and an image processor (not shown) are added to the lower side of the display device 200, and an apparatus such as an iPad of Apple can be constructed together with an apparatus not shown.

The apparatus of the present invention as shown in Fig. 11 does not have a separate area for gripping by hand as in the case of the prior art touch screen since the invisible area 92 is minimized or absent. Specifically, since the non-visible region 92 of FIG. 11 is the minimum region for disposing the signal line, most of it is 5 mm or less. In the prior art, the non-visible area 92 of the embodiment of the present invention is significantly reduced compared to the width of the grip area of 15 to 20 mm.

12 is a view for explaining an embodiment relating to A / R of the present invention.

Fig. 12 shows an embodiment in which the right side of Fig. 11 is gripped by a finger-like object 25, and when two hands are used, the same phenomenon occurs on the left and right sides of the apparatus. In order to grasp the apparatus of the present invention, the object 25 can be divided into two cases: grasping from the edge of the apparatus, grasping from the center of the apparatus, or grasping a certain region of the edge of the apparatus. When gripping from the edge of the device, the object will grip in the order t1-> t2-> t3, and if gripping from the center of the device to the edge, it will hold t3-> t2-> t1. In addition, if a certain region of the edge is grasped, it will hold an arbitrary region within t1 and t3.

The embodiment of the present invention has been described with respect to the case where the grasping is continuously performed from the edge of the apparatus to the center, that is, from the edge of the apparatus with the path from t1 to t3, and the same technical idea applies to other embodiments.

When the object is held at the time t1, the touch pad 10 of the grip region comes into contact with the object. As described above, the TDI 30 has a dead area (dead area.

(a) Step 1: Extracting the touch area

(b) Step 2: displaying a dead area in the active area of the display device based on the extracted touch area

(c) Step 3: displaying a dead area based on the changed touch area

In the first step, the touch detection circuit unit as shown in FIG. 9 detects a touch signal and extracts a touch area from an operator or a CPU included in the TDI 30 or configured separately from the TDI 30.

In the second step, a dead area is matched to the axis of the touch coordinates (the center of gravity of the area group) by touching the object 25, or a dead area coincident with the touch boundary of the object, Can be formed. At this time, a dead area is displayed from the end of the active area of the display device. For example, S1 is a dead area at time t1. In one embodiment of the present invention, when a value equal to or larger than an absolute or relative threshold value of the touch area is detected in a specific area of the display screen (for example, a border area having a predetermined width), a dead area is generated. The position of the touch for generating the dead area, that is, the position of the touch for which the user intends to grasp, can be confirmed by checking whether the coordinate calculated from the touch area is within a specific area of the display screen. Or when a touch screen on which an isolated touch pad is disposed is used, a dead area may be generated depending on whether the touch pad corresponding to a specific area of the display screen touches the touch screen.

In step 3, the dead area is expanded or contracted based on the movement of the object 25 or the wider area of the grip to enlarge the touch area. For example, the dead area increases from s1 + s2 at time t2 to s1 + s2 + s3 at t3 because the grip area increases at t2 and t3 when a predetermined time elapses at time t1 in FIG. If the initial gripping area is s3 and the predetermined time is lengthened to s3 + s2 and s3 + s2 + s1, the dead area corresponding to s3 corresponds to the grip area as shown in s3 And s2 and s1 act as a live area and a video image may be displayed. It is also possible to display all areas from s3 to s1 as a dead area when only s3 is gripped.

Generally, the screen of the display device is generally configured at a constant ratio such as 4: 3 or 16: 9. Therefore, in the embodiment of the present invention, a dead area is created in the edge portion so that the live area can maintain the above-mentioned constant aspect ratio.

13 is a view for explaining a live area according to an embodiment of the present invention.

The dead zone formed when the user grasps the apparatus of the present invention with one hand is generated on the opposite left side or right side similarly. As described above, the dead area is formed in the active area of the display device so that the live area is maintained at a constant ratio (i.e., 4: 3 or 16: 9) by the dead area based on the phage.

13, a dead zone of the same area is formed on the left side by the right grip, and a dead zone is formed on the upper and lower parts of the apparatus so that the live area in the vertical direction is determined based on the length in the horizontal direction formed at this time. Regions are formed to form the entire dead region 90b.

With the formation of the dead zone in the above-described manner, the live area 90a is resized at a constant rate, and the displayed content is enlarged / reduced according to the resizing ratio so that the user can see the same content before and after the resizing.

14 is a view for explaining a dead zone configuration according to an embodiment of the present invention.

Referring to FIG. 14, an apparatus according to an embodiment of the present invention can simultaneously detect a plurality of touch areas by a plurality of objects 25. In this case, the apparatus may have means for selecting at least one of the plurality of touch areas to determine a dead area.

For example, the dead area may be generated corresponding to s1 having the smallest touch area, or may be generated corresponding to the widest s3 or corresponding to s2 as the intermediate area. The remaining three dead sides of the dead zone are formed based on one generated dead zone.

The determination of the above-mentioned dead zone can be determined according to the policy of the designer, but the dead zone must not extend beyond a certain area. For example, in Fig. 14, S3 is 40% in the longitudinal direction. The dead zone is set to 40% even if it is gripped beyond 40%. The present apparatus has a means for setting such a limit area.

As a result, the entire active area of the display device is changed to a live area, and information such as a moving image or an image is displayed.

On the other hand, smart devices such as smart phones and tablet PCs are basically equipped with Bluetooth, GPS, geomagnetic sensor, acceleration sensor, etc. in addition to the touch screen input function.

An apparatus according to an embodiment of the present invention may include an acceleration sensor in the case of the smart device. When the acceleration sensor is used as a steering wheel of a car racing game by holding the apparatus from side to side as in the embodiment of FIG. 14, the grip area may slightly vary in real time.

In order to construct the dead zone by reflecting the fluctuation of the grip area in real time, there is a problem that the computing power of the processor included in the apparatus is lowered and the operation speed is lowered.

Thus, an apparatus according to an embodiment of the present invention includes means for creating a window in which a threshold area for dead zone variation can be set, and setting an area of the window (such as + -10) can do. The value of the window is a change value of the touch area and can be an output value of the ADC conversion unit 14-5 shown in FIG. Or the change value of the coordinate in a situation where the touch is maintained may be set as a threshold value.

According to this embodiment, it is not necessary to reflect the minute variation of the gripping area in the window in real time, thereby preventing unnecessary computation and power consumption.

On the other hand, in the dead zone, touch and touch release due to gripping should be detected, but touch inputs such as display, control, and installation of contents must be blocked. For example, a graphical user interface (GUI), such as a button in an application on an MP3 player, should not be included or installed in the dead zone. For this purpose, when the size of the live area is changed, the size of the GUI also changes in association with the size of the size of the live area.

Also, the dead area may be generated according to the operation of the application regardless of the holding. For example, when the apparatus of the present invention is to be gripped by two hands, as in a car racing game, a dead zone can be formed at a predetermined ratio in the left and right regions of the apparatus regardless of the grip. To this end, the apparatus of the present invention may include a channel and a mode capable of forming a dead zone in response to a command at an application layer. In the above-described embodiment, a dead region may not be formed in the upper and lower portions of the active region.

Such an image of the dead zone may be displayed in a repeating pattern such as black, white or gray, or a single color or jean / brick / leaf. Or a plurality of such images may be used in combination.

The image of the above-described dead zone is different from the image in the live area and is a fixed pattern that is not changed in real time, or a predetermined pattern (for example, by a time lapse such as a screen saver active condition) Can be displayed. In addition, a means by which the user can change the color of the dead area can be provided. If only the generation range of the dead area is determined, the determination of the hue and pattern to be output in the generation range can be easily determined by the setting of the application or the operating system.

Meanwhile, the resizing operation according to the embodiment of the present invention can be controlled in timing so as not to interfere with the touch operation of the user.

For example, if a GUI is touched to activate or enforce an operation (i.e., when the MP3 play button is touched), the resizing area of the live area is required to change the grip area so that the device according to an embodiment of the present invention Can be adaptively operated.

According to an embodiment of the present invention, the resizing operation may be blocked when the GUI is activated or in operation. This is because there is a problem that the touch operation is canceled because the position of the GUI is changed by resizing.

In another embodiment, the ICON location and size of the GUI may be determined based on the resizing ratio of the live area after a predetermined period of time after the touch operation is completed, although the live area is resized, but the position of the GUI remains the same. That is, when the user grasps a finger while a motion is generated by a GUI touch of the user, the position of the GUI is maintained for a predetermined time even if the live area is reduced. Thereafter, when a predetermined time elapses, the GUI and the display content are reduced in proportion to the reduction ratio of the live area, and their positions can be changed.

On the contrary, it may further include means in which the dead zone persists even if the grip is released and the ratio is also maintained.

For example, if a live area in which a moving image is displayed is displayed in a small size so as to be viewed only by a user, there is a need to keep a live area set small even if the holding is released. In this case, when the dead zone is set by the holding, it is possible to provide means and setting for holding the dead zone. This means of maintaining the dead zone can be set at the application or operating system level to control the apparatus of the present invention. Thus, even if the holding is released, the dead area is maintained and the ratio of the dead area and the live area is maintained.

In order to set the fixed dead area as in the embodiment of the present invention, a secondary signal different from the finger can be applied to the touch. The secondary signal can be input by drawing a circle on a touch screen panel as an object, writing a character, touching an arbitrary area a plurality of times, or touching a specific GUI.

Conversely, the fixed dead zone can be released in a manner similar to the secondary signal input scheme described above.

The dead zone generated by such a grip can be prevented from malfunctioning by accurately detecting the grip. For this purpose, it is necessary to increase the accuracy of detection of the critical area and the grip area for setting the dead zone.

For example, when an object 25 such as a finger passes by instantly, it is not necessary to set a dead zone linked to the object. Therefore, a process for setting the dead zone of the present invention must be operated if a touch area is detected over a predetermined time, that is, a threshold time. Thus, an apparatus according to an embodiment of the invention may have means for setting and measuring the threshold time.

In addition, a means for recognizing the dead area as a valid area must be provided when the dead area due to the phage is set to be equal to or larger than the critical area, and means for setting a threshold area in advance is provided for this purpose. The size of the touch area can be easily detected by the magnitude of the output value of the ADC conversion section 14-5 as described above.

On the other hand, since there is a difference between the area of the finger held by the adult and the area held by the finger of the sweep, there is a problem in detecting the area of the sweep by the finger of the sweep in setting the threshold area based on the area of the finger of the adult, There is a possibility that a problem of degradation of the image quality may occur. In order to solve such a problem, the apparatus according to another embodiment of the present invention may detect a holding area based on a relative value rather than an absolute value and generate a dead zone.

For this purpose, it is possible to detect the amount of change of the area based on the initially inputted grip area in the embodiment shown in Fig. 12 and to set the dead zone linked to the change amount. For example, the grip state is detected on the basis of the amount of change of the touch until the grip is detected while the first touch is detected. The user's grasp intention is detected according to the aforementioned relative change in touch area and a dead area is generated. For example, when an initial touch occurs in an area where a dead zone can be generated and the predetermined value of the touch area changes by more than a predetermined value, the user determines that the device has been gripped.

FIG. 15 is a diagram showing an exceptional area of occurrence of a dead zone according to another embodiment of the present invention. FIG.

According to another embodiment of the present invention, a dead zone may not be formed for a light finger which does not intend to reduce the live area or a light finger which does not cause a malfunction due to the use of the GUI.

Fig. 15 shows a state in which the active area is entirely made up of the live area 90a. Here, the critical region 90c indicated by a dotted line is an area having a width of a predetermined size at the edge of the active region. The touch can be detected also by an operation of holding the device under the critical region 90c without completely digging one or both of the devices.

Therefore, in the critical area 90c, the resizing of the live area 90a, which is not intended by the user, can be operated. In order to prevent such a malfunction, in the embodiment of the present invention, a dead area can be generated only when a touch area exceeding a critical area 90c having a predetermined width from the active area is detected.

The setting and operation of the critical area 90c may be performed using means provided in the application or operating system or means for setting the dead zone signal on the touch screen.

Also, according to the embodiment of the present invention, resizing can be performed according to the distance between the touch point and the GUI. Referring to FIG. 15, the edge of the live area 90a has an empty space with the area where the GUI is disposed. This empty space does not operate the application or operating system even if it touches. According to the embodiment of the present invention, even if a touch is recognized in the empty space, a dead area is not generated or the contents are not resized even if a dead area occurs. This region is shown in Fig. 15 as the non-reaction region 90d.

The reason for setting the non-reaction region 90d is to prevent unnecessary resizing by touching the edge portion of the active region, which is not intended to be gripped, as described above.

The non-reaction region 90d can be calculated using the distance between the actual GUI formed portion and the active region, or can be predetermined as the critical region 90c. This is because, for the sake of user's convenience, the GUI, in which the user inputs commands, is disposed by avoiding the outermost portion of the active area.

The setting and operation of the non-reaction area 90d can be performed by means of setting a dead zone signal on the touch screen or by using an application or means provided in the operating system.

Although the non-reaction region 90d is shown as being separate from the critical region 90c in FIG. 15, one of the two regions described above may be included in another region and set. The A / R based touch area detection has been described so far. However, this is an embodiment and an A / R based touch point is also possible.

In the case of the resistance method, a touch point is generated, and a dead area is generated on the outer side based on the touch point. Similar to the resistance method, in the linear type electrostatic touch shown in Fig. 2, the touch is detected as a plurality of points rather than an area. Even in this case, it is possible to set the dead zone based on the detected point. An object is recognized as a point even in the infrared mode or the camera mode. Even in this case, the dead zone is set based on the recognized point.

That is, when the user's grasp intention is detected based on at least one of the position of the touch point, the touch time, and the number of touch points, the apparatus of the present invention can form the dead area described above and dynamically change the size of the display screen .

Therefore, as described above, the display screen conversion method according to the present invention does not depend on the touch detection method, and it is easily understood by those skilled in the art that the same technical idea can be applied to all touch detection methods.

As such, the present invention is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

One embodiment of the present disclosure may be provided in the form of a computer-readable recording medium on which instructions executable by a smart communication device, such as a CPU, a recording medium, and an input / output device, such as a computer or a computer, The computer-readable medium can be a computer or any available medium that can be accessed by the smart device, and includes both volatile and non-volatile media, both removable and non-removable media. In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

Although the methods and systems of the present disclosure have been described with reference to particular embodiments, some or all of their components or operations may be implemented using a computer or smart communication device having a general purpose hardware architecture.

It is to be understood that the foregoing description of the disclosure is for the purpose of illustration and that those skilled in the art will readily appreciate that other embodiments may be readily devised without departing from the spirit or essential characteristics of the disclosure will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of protection of the present disclosure is indicated by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention. Should be.

10: touch pad 12-1: output of charging means
12: Charging means 14: Touch detection unit
22: sensor signal line 25: object
30: Touch Drive IC (TDI) 50: Touch Screen Panel
52: protective panel 57: adhesive member
58: air gap or contact member 60: drive IC
90: Active area 92: Invisible area
96: Flexible circuit board 98: UV curable resin
200: Display device 205: TFT substrate
210: liquid crystal layer 215: color filter
217: background 220: common electrode
230: Sealant

Claims (30)

A method of dynamically changing a size of a display screen in response to a grip of a display device providing touch input,
comprising the steps of: a) sensing a touch in a predetermined area of the active area where content can be displayed;
b) if a touch in the predetermined area is sensed, switching part of the active area into a dead area in which the content is not displayed based on the area of the touch; And
c) changing the size of the live area in which the current content is displayed in the active area based on the size of the dead area;
Dynamic change method of display screen size including.
The method of claim 1,
And the dead area outputs a predetermined color or pattern without a touch input for controlling the content.
The method of claim 2,
And the dead area is formed symmetrically in a horizontal or vertical direction on an edge of the active area.
The method of claim 2,
And the dead area is formed such that an aspect ratio of the live area is a predetermined ratio.
The method of claim 2,
And the content displayed in the live area is resized in proportion to the resize ratio of the live area by the dead area generation.
The method of claim 5, wherein
And resizing of the content is stopped or delayed when the content displayed in the live area is performing an operation by a touch input.
The method of claim 1,
Step b) is performed when a touch is detected for a predetermined threshold time.
The method of claim 7, wherein
Step b) is performed when a touch over a threshold area is detected.
The method of claim 7, wherein
The step b) is performed when the change amount of the touch over the threshold area is detected.
The method of claim 1,
In the step b), when detecting a plurality of touches, selecting one of the plurality of touches based on a predetermined priority, and generating a dead area corresponding to the selected touch. Dynamic change method.
The method of claim 1,
And the width of the dead area is variable based on the touch area or the touch position.
The method of claim 11,
And a width of the dead area has a predetermined limit value.
The method of claim 1,
and d) extending the live area to the active area when the touch in the dead area is released.
An electronic device including a touch input unit and a screen display unit,
Means for detecting a touch input in a predetermined area;
Means for converting a portion of an active area in which content can be displayed on the screen display unit into a dead area in which content is not displayed based on a touch detected in the predetermined area; And
Means for changing the size of the live area in which the current content is displayed in the active area based on the size of the dead area
Electronic device comprising a.
15. The method of claim 14,
The dead area may output a predetermined color or pattern without a touch input for controlling the content.
The method of claim 15,
The dead region is formed to be symmetrical in the horizontal or vertical direction on the edge of the active area.
The method of claim 15,
The content displayed on the live area is resized in proportion to the resize ratio of the live area by the dead area generation.
The method of claim 15,
The touch detection means,
A touch pad forming a touch capacitance (Ct) with the touch input means;
A driving capacitor Cdrv having one side connected to the touch pad and a driving voltage applied to the other side for a touch detection;
A detection unit detecting a common voltage generated in the display device;
A driving voltage generator configured to generate a driving voltage in synchronization with the common voltage; And a touch connected to the touch pad to detect a touch signal by using a driving back phenomenon when the touch capacitance Ct is added to the driving capacitor Cdrv according to whether the touch input means is touched. Detector
&Lt; / RTI &gt;
The method of claim 15,
When the touch in the dead area is released, the live area is extended to the active area by releasing the dead area.
The method of claim 19,
And setting means for fixing the dead area without releasing the dead area.
The method of claim 15,
And means for varying a width of the dead area based on the touch area.
22. The method of claim 21,
The width of the dead region is variable when the width of the touch area or the touch coordinate window of a predetermined size exceeds.
The method of claim 15,
And means for setting a color or pattern of the dead area.
The method of claim 15,
And means for not generating the dead area even when a touch is generated with respect to an area having a predetermined width from an edge of the active area.
The method of claim 15,
And means for not generating the dead area or resizing the content even when a touch occurs with respect to an area having a predetermined width from the content input to the live area.
The method of claim 15,
Wherein the touch area is determined by a point at which a touch is sensed.
A touch screen input device comprising:
Means for detecting a touch input in a predetermined area; And
Means for generating a signal for converting a portion of the active area where content can be displayed to a dead area where content is not displayed based on the touch detected in the predetermined area,
And a display device connected to the touch screen to change the size of the live area in which the current content is displayed in the active area based on the size of the dead area.
The method of claim 27,
And a touch input for controlling the content in the dead area is ignored.
29. The method of claim 28,
The dead area is a touch screen input device that is formed symmetrically in the horizontal or vertical direction on the edge of the active area.
29. The method of claim 28,
The content displayed on the live area is resized in proportion to the resize ratio of the live area by the dead area generation.

Images