KR200448650Y1 - Frame for touch screen and touch screen have the same - Google Patents

Abstract

Disclosed is a frame member and a touch screen having the same. Four frame members that surround and support the edges of the rectangular image panel, the rectangular protective panel, and the rectangular touch sensor, which are disposed in close proximity, and are rotatably coupled to at least one of the four frame members along an axis parallel to the longitudinal direction thereof. And at least one cover, wherein the cover is rotated between a first position that covers an edge portion of one surface of the touch sensor and a second position that does not cover the touch by providing a frame and a touch screen having the same. By making it easy to open part or all of the frame of the screen, the touch sensor can be rearranged and replaced without moving the touch screen from the installation site to another location. And replacement can be done easily. This saves time and effort in aligning the product, thus improving the productivity of the touch screen.

Touch screen, touch sensor, frame, opening and closing, opening

Description

FRAME FOR TOUCH SCREEN AND TOUCH SCREEN HAVE THE SAME}

The present invention relates to a frame and a touch screen having the same, and to a frame and a touch screen having the same or part of the frame opened and closed to readjust and replace the touch sensor of the touch screen.

A touch screen is a display device provided with a touch sensor so that a user can input information and commands on the screen by using a hand or a stylus pen. The touch screen is suitable for constructing a graphical user interface (GUI) environment, and is easy for the user to use intuitively.

Due to these advantages, touch screens are widely used in various fields such as small electronic devices such as portable mobile communication devices, guidance systems such as kiosks, and large electronic blackboards of educational institutions.

1 illustrates an exploded perspective view of a general touch screen.

Referring to FIG. 1, a transparent material such as tempered glass is disposed on the touch screen 100 to protect the image panel 10 by being disposed in close proximity to an image panel 10 displaying an image on one surface and a surface of the image panel 10. A circuit board 11 mounted with a protection panel 12, a touch sensor 190 for detecting a user's touch input position, a controller for receiving a signal from the touch sensor 190, and controlling an operation of the image panel 10. ) Is included.

In addition, the touch screen 100 includes an image panel 10, a circuit board 11, a protection panel 12, and a front frame 101 and a rear frame 102 that support the touch sensor 190. The front frame 101 is open to the front part except the edge for the output of the image panel 10 and the input of the touch sensor 190.

The touch sensor 190 is a device for measuring input coordinates such as a user's hand or a stylus pen, and various measuring methods such as optical, resistive, capacitive, and ultrasonic methods are used. A representative touch sensor 190 will be briefly described with reference to FIGS. 2 and 3.

2 illustrates a front view of the optical touch sensor.

Referring to FIG. 2, the optical touch sensor 191 includes an infrared light emitter (not shown) that emits infrared rays in a vertical and horizontal direction to form a lattice, a holder 192 in which an infrared light emitter is built, and a holder 192. And at least two cameras (not shown) installed at different positions of the user and measuring coordinates of a portion where the infrared grid is blocked by a user's hand or a stylus pen, and a camera holder 193 having a built-in camera. .

The camera holder 193 is provided with an adjusting screw 194. The adjusting screw 194 is generally provided with a plurality of 194a, 194b, and 194c, and adjusts the alignment state of the camera and the infrared light emitter by adjusting the direction and position of the camera by using the same.

3 illustrates a front view of the infrared touch sensor.

Referring to FIG. 3, the infrared touch sensor 195 includes an infrared light emitter (not shown) that emits infrared rays in the vertical and horizontal directions, an infrared sensor that receives infrared light emitted by the infrared emitters (not shown), A holder 196 incorporating an infrared illuminator and an infrared sensor is included.

One side of the four sides of the holder 196 opposing each other is built in the infrared light emitter, the other side is built in the infrared sensor. The infrared touch sensor 195 calculates an input position by measuring the horizontal and vertical coordinates of the point where the infrared light does not reach the infrared sensor when the infrared ray is blocked by a user's hand or a stylus pen.

As the touch sensor 190 of FIG. 1, various types of touch sensors may be used in addition to the optical touch sensor 191 and the infrared touch sensor 195 described with reference to FIGS. 2 and 3.

In order for the touch screen 100 to operate correctly, the alignment of the image panel 10 and the touch sensor 190 should be maintained well. In the manufacturing process of the touch screen 100, the image panel 10 and the touch sensor 190 are correctly aligned and fixed, and then the front frame member 101 and the rear frame member 102 are assembled to form the touch screen 100. Complete

That is, the touch screen 100 is in a state in which the image panel 10 and the touch sensor 190 are exactly aligned immediately after the manufacturing is completed. Since the alignment of the image panel 10 and the touch sensor 190 is a very precise work, a considerable time is devoted in the manufacturing process of the touch screen 100.

However, in the process of carrying and installing the touch screen 100, the alignment state of the image panel 10 and the touch sensor 190 is misaligned due to the shock and vibration applied to the touch screen 100, and thus, the rearrangement operation must be performed. This happens frequently.

In order to rearrange the image panel 10 and the touch sensor 190, the image panel 10 and the touch sensor 190 must be relatively moved, so that the touch screen 100 is separated from the installed position, After disassembling the frame member 101 and the rear frame member 102, the rearrangement operation may be performed. That is, in order to realign the touch sensor 190, the entire touch screen 100 must be disassembled.

However, when foreign matter such as dust is interposed between the image panel 10 and the protection panel 12, since the image quality of the touch screen 100 may be greatly degraded, the touch screen for realigning the touch sensor 190 may be performed. To disassemble the 100, the touch screen 100 must be moved to a place equipped with a dustproof facility. In addition, when the touch screen 100 is large, several workers are required.

As such, realigning the touch sensors 190 of the touch screen 100 takes a lot of time, money, and effort.

The present invention is devised to improve the above-mentioned disadvantages, the object of the present invention is to realign the touch sensor, the touch sensor without moving the touch screen from the installed place to another place or disassemble the entire touch screen It is to provide a frame member and a touch screen having the same that can be rearranged or replaced.

According to an aspect of the present invention, four frame members that surround and support the edge portion of the rectangular image panel, the rectangular protective panel and the rectangular touch sensor disposed in close proximity, and at least one of the four frame members in the longitudinal direction thereof And at least one cover rotatably coupled along a parallel axis, wherein the cover is pivoted between a first position that covers an edge portion of one surface of the touch sensor and a second position that does not cover it. do.

Here, one of the frame member and the cover may have a cylindrical hinge pin portion protrudingly formed along the longitudinal direction, and the other may have a cylindrical hinge groove portion in which the hinge pin portion is rotatably coupled along the longitudinal direction. The hinge pin part and the hinge groove part may each include fastening holes arranged in a row when the cover is in the first position, and further include fastening members detachably coupled to the fastening holes arranged in a row.

The frame as described above may further include an elastic member interposed between the frame member and the cover to elastically support the cover in a direction in which the cover is rotated from the second position to the first position. In the frame member, a stopper may be formed to protrude from the elastic member to prevent the cover from being rotated more than the first position, thereby preventing the end of the cover from approaching the touch sensor.

According to another aspect of the present invention, there is provided a touch screen having a frame as described above.

According to an embodiment of the present invention, by allowing the frame of the touch screen to be partially or fully opened, it is possible to rearrange or replace the touch sensors without moving the touch screen from place to place, even with a small number of workers. The rearrangement and replacement of the touch sensor can be easily performed, and the time and effort required to accurately align the touch sensor during the manufacture of the touch screen are saved, thereby improving the productivity of the touch screen.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, the same or similar components are described with the same reference numerals, and the vertical or parallel referred to herein does not mean a mathematical or geometric vertical or parallel, but rather refers to a substantially vertical or parallel considering mechanical machining errors and the like. Make sense.

4 is a perspective view of a touch screen with a frame according to an embodiment of the present invention.

4, the frame 201 of the touch screen 200 having a frame according to an embodiment of the present invention, the first frame member 210, the second frame member 230, the third frame member A first cover 220 rotatably coupled to the 250, the fourth frame member 270, and the first frame member 210 is included.

The first frame member 210, the second frame member 230, the third frame member 250 and the fourth frame member 270 is a rectangular image panel (see 10 in FIG. 1) disposed in close proximity, rectangular protection It surrounds and supports the edges of the panel (see 12 in FIG. 1) and the rectangular optical touch sensor (see 191 in FIG. 2). For reference, an optical touch sensor 191 is applied as a touch sensor of the touch screen 200 having a frame according to an embodiment of the present invention.

Here, both ends of the first frame member 210 are coupled to one ends of the second frame member 230 and the fourth frame member 270, respectively, and both ends of the third frame member 250 are connected to the second frame member ( 230 and the other end of the fourth frame member 270, respectively. Between the first frame member 210, the second frame member 230, the third frame member 230, and the fourth frame member 270, an L-shaped bracket or the like, which is not shown, is inserted to be firmly coupled to each other. Can be.

In the frame 201 according to the embodiment of the present invention, the first cover 220 is rotatably coupled to an axis of the first frame member 210 positioned at an upper side thereof in an axis parallel to the longitudinal direction thereof.

The first cover 220 is rotated from a position covering the edge portion of one surface of the optical touch sensor 191 to a position not covering the edge portion of the one surface. This will be described with reference to FIGS. 5 and 6 together.

For reference, reference numeral 259 of FIG. 4 is an infrared receiver and a status display unit, and the touch screen 200 having a frame receives a signal such as a remote controller, not shown, or displays whether power is supplied and an operation state. That's the part.

5 and 6 are cross-sectional views taken along the line V (VI) -V (VI) shown in FIG. 4. Here, FIG. 5 illustrates a state in which the first cover 220 covers the edge portion of one surface of the optical touch sensor 191, and in FIG. 6, the first cover 220 is the optical touch sensor 191. It is shown that the first frame member 210 is rotated so as not to cover the edge portion of one side of the.

Referring to FIG. 5, edge portions of the image panel 10, the protection panel 12, and the optical touch sensor 191 are supported by the first frame member 210. In addition, the first cover 220 is rotatably coupled to the first frame member 210.

The image panel 10 displaying an image on one surface is supported by the image panel support 216 protruding from the inside of the first frame member 210 by the bracket 216a and the fixing members 216b and 216c.

One surface of the protection panel 12 made of a material having high surface hardness and transparency, such as tempered glass, is disposed close to one surface of the image panel 10 on which an image is displayed, thereby protecting one surface of the image panel 10. The protection panel 12 is supported by the protection panel support 214 by the bracket 214a and the fixing member 214b.

An optical touch sensor 191 is disposed close to the other surface of the protection panel 12. Here, the touch sensor (see 190 of FIG. 1), such as the optical touch sensor 191, is generally attached to the other surface of the protective panel 12 by an adhesive means (not shown) such as a double-sided tape.

A cylindrical hinge pin portion 221 protrudes along the longitudinal direction of the first cover 220, and a hinge groove portion 211 is formed along the longitudinal direction of the first frame member 210. The hinge groove portion 211 is formed in a cylindrical shape so that the hinge pin portion 221 is inserted into the rotatable coupling.

By the hinge groove portion 211 and the hinge pin portion 221 as described above, the first cover 220 is rotatably coupled to the first frame member 210.

Fastening holes 212 and 222 are formed in the hinge groove portion 211 and the hinge pin portion 221, respectively, and as shown in FIG. 5, the first cover covers the edge portion of one surface of the optical touch sensor 191. When present, each of the fastening holes 212 and 222 is arranged in a line.

At this time, when the fastening members 227 such as bolts or pins are detachably fastened to the fastening holes 212 and 222 arranged in a row, the first cover 220 is not rotated with respect to the first frame member 210. do. The fastening member 227 will be described again with reference to FIGS. 7 and 8.

An elastic member 225 is interposed between the first frame member 210 and the first cover 220. That is, the elastic member support parts 213 and 223 are formed in the first frame member 210 and the first cover 220, respectively, and both ends of the elastic member 225 are supported by the elastic member support parts 213 and 223. do.

The elastic member 225 elastically supports the first cover 220 to be rotated in a direction covering the edge portion of one surface of the optical touch sensor 191. That is, when the first cover 220 is rotated with respect to the first frame member 210 and rotates in a direction not covering the edge portion of one surface of the optical touch sensor 191 as shown in FIG. 6, the first frame member is rotated. An interval between the elastic member support part 213 of 210 and the elastic member support part 223 of the first cover 220 becomes close.

Accordingly, the elastic member 225 is deformed as shown by a dotted line in FIG. 9 to accumulate elastic force, and this elastic force causes the first cover 220 of one surface of the optical touch sensor 191 as shown in FIG. 5. It acts in the direction of rotation to the position covering the edge portion.

However, when the first cover 220 is excessively rotated by the elastic force of the elastic member 225 and the opposite end of the end where the hinge pin portion 221 is formed is in contact with the optical touch sensor 191, the touch screen 200 having a frame is provided. ) May malfunction. Accordingly, the stopper 215 is protruded from the first frame member 210 so that the first cover 220 is moved close to the optical touch sensor 191 so as not to cause malfunction. Restrict.

For reference, as in the case in which the touch screen 200 having the frame is moved to an installation place, when shaking or vibration is applied to the touch screen 200 having the frame, the first cover 220 is provided with the first frame. The member 210 may be shaken in a rotatable direction.

To prevent this, even when the first cover 220 is in a position covering the edge portion of the touch sensor 191 as shown in FIG. 5, the elastic force of the elastic member 225 is applied to the first cover 220. To be applied, and the first cover 220 is brought into contact with the pressurized stopper 215 somewhat.

The image cover support 216 has a rear cover coupling portion 217 to which the rear cover 209 is coupled to protrude.

As described above, in the case of the touch screen 200 having a frame according to an embodiment of the present invention, a hinge pin portion 221 is formed on the first cover 220 and a hinge groove portion on the first frame member 210. 211 is formed, and the first cover 220 is rotatably coupled to the first frame member 210. Although not shown, on the contrary, the hinge groove may be formed on the first cover 220 and the hinge pin may be protruded from the first frame member 210.

In FIG. 7 and FIG. 8, the portion indicated by A in FIG. 4 is enlarged. Here, FIG. 7 illustrates a state in which the first cover 220 covers the edge portion of one surface of the optical touch sensor 191, and in FIG. 8, the first cover 220 is the optical touch sensor 191. It is shown to be rotated to a position that does not cover the edge portion of one side.

When the first cover 220 is rotated with respect to the first frame member 210 so that the first cover 220 is rotated to a position not covering the edge portion of one surface of the optical touch sensor 191, the optical touch sensor 191 The adjusting screw 194 is exposed to the outside. Accordingly, by adjusting the adjustment screws 194a, 194b, and 194c, the direction and the position of the camera (not shown) built in the camera holder 193 are adjusted to adjust the optical touch sensor 191 with respect to the image panel 10. You can sort.

As described above, the touch screen 200 having a frame may perform an operation of aligning the optical touch sensor 191 only by rotating the first cover 220 without disassembling the entire frame 201.

Therefore, in the manufacturing process of the touch screen 200 with a frame, the process of accurately aligning the optical touch sensor 191 is omitted, and the optical touch after carrying and installing the touch screen 200 with the frame to the place to install It is possible to align the sensor 191. Therefore, it is possible to save time required for alignment of the optical touch sensor 191 during the manufacturing process of the touch screen 200 having a frame.

In addition, if the alignment of the optical touch sensor 191 is misaligned in the process of transporting and installing the touch screen 200 having the frame, and needs to be rearranged, the first cover without disassembling the entire frame 201. By rotating the 220, the adjustment screw 194 may be adjusted, thereby saving time, effort, and cost required for the rearrangement of the touch screen 200 having the frame.

After the rearrangement operation of the optical touch sensor 191 is finished, if the external force is not applied to the first cover 220 rotated, the first cover 220 is shown in FIG. 7 by the elastic force of the elastic member 225. The camera holder 193 will be covered again. However, since the first cover 220 can be easily rotated by the user, the user may arbitrarily manipulate the adjusting screw 194 to change the aligned state of the optical touch sensor 191.

In order to prevent this, by coupling the fastening member 227 to the fastening holes 212 and 222 formed in the hinge groove 211 and the hinge pin 221, the first cover 220 is not rotated arbitrarily, the user is the first It is possible to prevent the cover 220 from opening arbitrarily.

9 illustrates an example of an elastic member applied to a frame member according to an embodiment of the present invention.

Referring to FIG. 9, the elastic member 225 has a deformable portion 225a that is elastically deformed by an external force and is symmetrically formed, and the contact portions 225b, 225c, and 225d which contact the elastic member supporting portions 213 and 223 are provided. At least three places are formed.

Therefore, when the elastic member 225 is elastically deformed into the shape indicated by the dotted line by the external force, the elastic member 225 is stably seated without being separated from the elastic member support parts 213 and 223 by the elastic force.

For reference, although not shown, in the case where an infrared touch sensor 195 of FIG. 3 is applied to the touch screen 200 having a frame according to an embodiment of the present invention instead of the optical touch sensor 191, a first embodiment Covers (not shown), such as the first cover 220, which are rotatably coupled to the frame member 210, may include the second frame member 230, the third frame member 250, and the fourth frame member 270. In addition, the infrared touch sensor 195 can be easily replaced by opening all of these covers.

Therefore, in order to replace the infrared touch sensor 195, it is necessary to disassemble all the first frame member 210, the second frame member 230, the third frame member 250, and the fourth frame member 270. Therefore, the time, effort, and cost required to replace the infrared touch sensor 195 is saved.

Although the frame member and the touch screen having the same according to the exemplary embodiment of the present invention have been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention are the same. Within the scope of the present invention, other embodiments may be easily proposed by adding, changing, deleting, or adding components, but this will also fall within the scope of the present invention.

1 is an exploded perspective view of a typical touch screen.

2 is a front view of the optical touch sensor.

3 is a front view of the infrared touch sensor.

Figure 4 is a perspective view of a touch screen with a frame according to an embodiment of the present invention.

5 and 6 are cross-sectional views taken along the line V (VI) -V (VI) shown in FIG. 4.

7 and 8 are enlarged front views of a portion indicated by A in FIG. 4.

9 is a plan view illustrating an elastic member applied to the frame member according to an embodiment of the present invention.

Description of the Related Art

10: image panel 12: protection panel

190: touch sensor 191: optical touch sensor

195: Infrared Touch Sensor 193: Camera Holder

194: adjusting screw 201: frame member

210: first frame member 220: first cover

211: hinge groove 212: fastening hole

222: fastening hole 221: hinge pin

230: second frame 250: third frame

270: fourth frame 227: fastening member

Claims (8)

Four frame members that surround and support the edges of the rectangular image panel, the rectangular protective panel, and the rectangular touch sensor that are disposed in close proximity to each other; And At least one cover coupled to at least one of the four frame members rotatably along an axis parallel to the longitudinal direction, The cover is rotated between a first position that covers the edge portion of one surface of the touch sensor and a second position that does not cover, One of the frame member and the cover is formed with a cylindrical hinge pin portion protruding in the longitudinal direction, the other is formed a cylindrical hinge groove portion is rotatably coupled to the hinge pin portion along the longitudinal direction, The hinge pin portion and the hinge groove portion are each formed with fastening holes arranged in a row when the cover is in the first position, Frames, characterized in that the fastening member is detachably coupled to the fastening holes arranged in a row. delete delete The method of claim 1, And an elastic member interposed between the frame member and the lid to elastically support the lid in a direction in which the lid is rotated from the second position to the first position. The method of claim 4, wherein The frame member, the frame is characterized in that the stopper is formed to protrude from the first position by the elasticity of the elastic member to prevent the end of the cover close to the touch sensor. A touch screen with a frame according to claim 1. The method of claim 6, A touch screen having a frame interposed between the frame member and the cover, the cover further comprising an elastic member for elastically supporting the cover in a direction in which the cover is rotated from the second position to the first position. . The method of claim 7, wherein The frame member is provided with a frame, characterized in that the stopper is formed to protrude from the first position by the elasticity of the elastic member to prevent the end of the cover close to the touch sensor. touch screen.

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