KR100683656B1 - Input device applying pen with cushion property - Google Patents

Abstract

An input device employing a pen which acts as a buffer is disclosed. The present invention includes an input device having an image display portion for realizing an image, a body portion capable of contact with a minimum pressing force on the image display portion, a tip portion coupled to the body portion, and cushioning means installed on the body portion or the tip portion. do.

Description

Input device applying pen with cushion function

1 is an exploded perspective view showing an example of a conventional input device;

2 is a configuration diagram schematically showing a state in which a conventional input device and an image display device are combined;

3 is a partially enlarged perspective view of a pen according to a first embodiment of the present invention;

4 is a perspective view partially showing an enlarged pen according to a second embodiment of the present invention;

5 is a perspective view partially showing an enlarged pen according to a third embodiment of the present invention;

<Brief description of symbols for the main parts of the drawings>

10 ... Touch panel 11 ... Top board

12 Lower substrate 13 Upper electrode

14 Lower electrode 17 Dot spacer

20 LCD panel 21 Front panel

22.Rear substrate 27.Liquid crystal

30, 40, 50, 210 ... Pen 31, 41, 51

32,42,52 ... tip part 33,43,53 ... clip part

34,44,54 ... click 35 ... ball                 

45 ... Contact 46, 57 ... Spring

220 Controller 230 Central processing unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input device, and more particularly, to an input device employing a pen having a buffering function with an improved structure of a pen pointing to an image display unit of an input device.

In general, the input device is integrated with an image display device such as a liquid crystal display so that a button computer displayed on the image display unit can be easily used by a pen computer or a personal terminal through input means such as a finger or a pen. It is a useful device.

Such input devices include a touch panel and a digitizer.

When the touch panel comes into contact with a certain point on the upper substrate by using a predetermined input means such as a pen or a finger, the upper and lower substrates, which are maintained at appropriate intervals by the dot spacers, are contacted with each other at any one point to conduct electricity. After reading the voltage value changed by the resistance value of the position, the controller converts the digital value according to the change of the potential difference to find the position coordinate.

The digitizer is a device that digitally detects the position of input means such as an electronic pen or finger on the panel and outputs it by XY coordinates. It is more convenient to use characters and figures than the mouse, keyboard, and scanner that are widely used. And precise input. In order to implement such a digitizer system, a panel for giving coordinate data, an input means such as a stylus pen or a finger for designating a point of a coordinate system represented by the panel, and a digitizer controller for controlling them Is needed.

The pen used here is an injection molded product made of polymer resin, and the tip portion is made of polyacetal or polyethylene. Such a pen is subjected to a predetermined pressing force upon contact with the image display unit.

In this case, the applied pressure is transmitted to the upper substrate of the input device forming the image display unit as it is. Due to this pressing force, the flexible film or the glass coated with the transparent conductive film may be momentarily damaged such as scratches.

In addition, there is a problem in that the life of the input device is shortened due to the friction force generated when the pen contacts the image display part tens of thousands of times or the crack of the image display part locally. Therefore, it is necessary to reduce the force applied to the pen to the input device to the minimum to improve the durability of the input device and to prevent the peeling phenomenon.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an input device employing a pen which has a buffer function to minimize the pressure applied to the input device by improving the structure of the pen contacting the image display unit of the input device. The purpose is to.

In order to achieve the above object, the input device employing a pen for buffering action according to an aspect of the present invention,

An input device having an image display portion for implementing an image; And

The image display unit can be contacted with a minimum pressing force,

And a pen having a body portion, a tip portion coupled to the body portion, and a shock absorbing means installed on the body portion or the tip portion.

In addition, the buffer means is interposed in the space portion in the tip portion, a part of the outer circumferential surface is exposed to the outside through the open through hole of the tip end portion is characterized in that the ball can be clouded in contact with the image display.

In addition, the buffer means is coupled to the elastic bias means interposed in the space portion in the tip portion, and the elastic bias means, a portion of which is exposed to the outside through the through hole in the tip end portion is elastically contactable to the image display portion And a contact portion.

In addition, the body portion is characterized in that the upper body portion formed with a predetermined groove portion at one end, and the lower body portion is inserted with a size corresponding to the groove portion.

Further, the buffer means is characterized in that the elastic bias means interposed on the surface coupled to the upper body portion and the lower body portion.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the input device employing a pen for buffering action according to the present invention.

Referring to FIG. 1, the touch panel 10, which is one of the input devices, includes an upper substrate 11 made of a flexible film and a lower substrate 12 made of transparent glass facing each other.

A first transparent conductive film such as an ITO film is coated on the lower surface of the upper substrate 11, and a plurality of upper electrodes 13 in strip form are provided along both edges of the substrate 11.

The upper surface of the lower substrate 12 is coated with a patterned second transparent conductive film, and the upper surface of the transparent conductive film has an edge of the lower substrate 12 in a direction different from the position where the upper electrode 13 is formed. Therefore, a plurality of strip-shaped lower electrodes 14 are provided.

The lower substrate 12 is formed with an upper electrode wiring 15 that is energized with the upper electrode 13 and a lower electrode wiring 16 extending from the lower electrode 14, respectively. The upper and lower electrode wirings 15 and 16 are assembled at the center of one side of the lower substrate 12 to become a power application point.

In addition, a plurality of dot spacers 17 are formed on the lower substrate 12 to appropriately control the distance between the upper and lower substrates 11 and 12. The height of the dot spacer 17 is about 4 to 5 micrometers.

On the other hand, the power supply point collected on one side of the lower substrate 12 is electrically connected to a flexible cable, for example, a flexible printed cable (19).

FIG. 2 shows an image display device 20 employing the touch panel 10 of FIG.

Referring to the drawings, an image display device 20 integrally formed thereon is installed under the touch panel 10. Various displays may be used as the image display apparatus 20. In this embodiment, a liquid crystal display is applied.

The liquid crystal display 20 includes a front substrate 21 and a rear substrate 22.

A plurality of upper electrodes 23 in a strip form are formed on the lower surface of the front substrate 21, and the first alignment layer 24 oriented in a specific direction is coated on the upper electrodes 23.

The upper surface of the back substrate 22 is formed with a plurality of lower electrodes 25 in the form of a strip orthogonal to the upper electrode 23 in the form of a strip, the lower electrode 25 has a second alignment layer 26 Formed.

The liquid crystal 27 is injected between the first and second alignment layers 24 and 26, and the cell gap between the front and rear substrates 21 and 22 is controlled to control the thickness of the liquid crystal 27 layer. The spacers 28 are scattered in order to keep them uniform.

On the outer surfaces of the front and rear substrates 21 and 22, polarizing plates 29 for polarizing incident light are respectively provided. At the edges of the front and rear substrates 21 and 22, a sealing material 200 for adhering and fixing them is applied.

When the image display device 20 employing the touch panel 10 contacts the upper substrate 11 of the touch panel 10 with a predetermined input means such as a pen 210, the upper substrate 11 The dot spacers 17 are electrically energized with the lower substrate 12 holding a proper distance. When energized, the voltage value changed by the resistance value of the position is read, and the controller 220 converts the voltage value into a digital value according to the change of the potential difference to find the position coordinate.

When the position coordinates are confirmed, the signal is sent to the central processing unit 230, and the liquid crystal display 20 installed at the lower portion of the touch panel 10 emits light emitted from a backlight not shown according to the transmitted signal. The contrast is generated by changing the arrangement of the molecules of the liquid crystal 27 injected between the front and rear substrates 21 and 22, thereby realizing shapes and characters simultaneously.

According to a feature of the present invention, the pen 210 is provided with a separate buffer means for reducing the friction when the upper substrate 11 of the touch panel 10 forming the image display unit.

3 shows a pen 30 according to a first embodiment of the present invention.

Referring to the drawings, the pen 30 includes a body portion 31 and a tip portion 32 coupled to one end of the body portion 31. In the body portion 31, the clip portion 33 is installed at the other end side according to the user's needs, or the click portion (Drag) and drag (drop) can be dragged (drop) the figure or characters displayed on the image display 34) may be installed.

Here, the ball 35 is inserted into the tip portion (32). That is, a predetermined space portion 32a is formed inside the tip portion 32, and a ball 35 made of a soft polymer resin, such as rubber, is interposed in the space portion 32a.                     

A portion of the outer circumferential surface of the ball 35 protrudes through the through hole 32b opened at the end of the tip portion 32, and a cloud is formed in accordance with the direction in which the user moves the pen 30 on the image display portion. It is possible. At this time, the diameter of the ball 35 is formed larger than the diameter of the through hole 32b is prevented from being separated to the outside.

Accordingly, when the user contacts the pen 30 to the upper substrate of the input device to apply a predetermined pressing force, the pen 30 rotates the ball 35 interposed on the tip portion 32 to cause an image display portion. It is possible to move to the shock absorber to greatly reduce the friction generated during contact.

4 shows a pen 40 according to a second embodiment of the present invention.

Referring to the drawings, the pen 40 includes a body portion 41 and a tip portion 42 coupled to one end of the body portion 41. The body portion 41 may further be provided with a clip portion 43 or a click portion 44 as in the first embodiment described above.

Here, the tip portion 42 is interposed with an elastic bias means, the elastic bias means is coupled to the contact portion 45. That is, one end portion of the spring 46 is fixed to the support portion 42b of the tip portion 42 in the space portion 42a in the tip portion 42. The other end of the spring 46 is coupled to the fixing part 45a protruding from the lower surface of the contact part 45 introduced into the space part 42a. The contact portion 45 is partially exposed to the outside through a portion open to the end of the tip portion 42.

Accordingly, when the user makes contact with the pen 40 on the image display unit of the input device, the contact unit 45 provided at the tip of the tip unit 42 has an elastic force by the buffering action of the spring 46 and the image display unit. The contact force can be made to minimize the pressing force applied to the surface of the image display portion.

5 shows a pen 50 according to a third embodiment of the present invention.

Referring to the drawings, the pen 50 includes a body portion 51 and a tip portion 52 coupled to one end of the body portion 51. The body portion 51 may be further provided with a clip portion 53 or a click portion 54 as in the above-described embodiment.

Here, the body portion 51 is composed of an upper body portion 55 and a lower body portion 56 coupled with the upper body portion 55. The upper and lower body parts 55 and 56 may be combined in various shapes.

In this embodiment, a predetermined groove portion 55a is formed inside the upper body portion 55, and an upper jaw portion 55b is formed at an end portion of the upper body portion 55. A lower body portion 56 having a size corresponding to that of the groove portion 55a is introduced into the groove portion 55a, and an end of the lower body portion 56 is separated from the upper body portion 55. In order to prevent the lower jaw portion 56b that is seated on the upper jaw portion 55b is formed.

In addition, an elastic bias means is interposed between the upper and lower body portions 55 and 56. That is, the upper body portion 55 is provided with a support portion 55c at the center thereof, so that one end of the spring 57 is coupled. A fixing portion 56c is installed on a lower surface of the lower body portion 56, and the other end of the spring 57 is coupled. Accordingly, the lower body portion 56 is elastically movable by the spring 57 in the groove portion 55a.                     

On the other hand, the lower body portion 56 is coupled to the tip portion 52 at one end thereof, the lower body portion 56 and the tip portion 52 can be applied in any one type or separate.

When the pen 50 having the above structure comes into contact with the image display portion of the input device, the lower body portion 56 has an elastic force due to the buffering action of the spring 57 when the tip portion 52 moves on the image display portion. And the tip portion 52 coupled with the lower body portion 56 can contact the surface of the image display portion with minimal pressing force.

As described above, the input device employing the pen acting as a shock absorber of the present invention can obtain the following effects by providing a buffer means to minimize the pressing force when the pen contacts the image display unit.

First, when the pen touches the image display unit of the input device, a predetermined pressing force is applied to the pen, and a shock absorbing means capable of rotating or elasticity is provided at the tip unit, thereby minimizing the pressure applied to the image display unit to configure the image display unit. Damage such as scratching of a flexible film or a glass coated with a transparent conductive film can be prevented in advance.

Second, the life of the input device can be extended by preventing the image display part from being locally peeled off or cracking due to the frictional force generated when the pen contacts the image display part. As such, the pressure applied to the pen is minimized to be transmitted to the input device, thereby greatly improving the durability of the input device.                     

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (9)

delete delete delete An input device having an image display portion for implementing an image; And The image display unit can be contacted with a minimum pressing force, A body portion, a tip portion coupled to the body portion, and a cushioning means installed on the body portion or tip portion, The shock absorbing means is coupled to the elastic bias means interposed in the space portion in the tip portion, and the elastic bias means, a portion of which is exposed to the outside through the through-hole of the tip end portion is exposed to the elastically contact the image display portion have, The elastic biasing means is an input device employing a pen which has a buffering function including a pen, one end of which is coupled to a support portion formed in the tip portion, and the other end of the elastic portion is coupled to a fixed portion of the rear surface of the contact portion. delete An input device having an image display portion for implementing an image; And The image display unit can be contacted with a minimum pressing force, A body portion, a tip portion coupled to the body portion, and a cushioning means installed on the body portion or tip portion, The body portion has an upper body portion formed with a predetermined groove portion at one end, and a lower body portion is inserted with a size corresponding to the groove portion, And the buffer means includes a pen having an elastic bias means interposed on a surface where the upper body portion and the lower body portion are coupled to each other. delete The method of claim 6, The elastic biasing means is buffered, characterized in that one end is coupled to the support portion formed in the center of the upper body portion formed with the groove portion, the other end is coupled to the fixing portion protruding on the back of the lower body portion introduced into the upper body portion Input device employing a pen. The method of claim 6, An upper jaw portion is formed at an end portion of the upper body portion, and a lower jaw portion is formed at an end portion of the lower body portion inserted into the groove portion so as to prevent separation to the outside and is seated on the upper jaw portion. Adopted input device.

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