JP2000293309A - Input function incorporated type display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an input function incorporated type display device capable of reusing a touch panel when a liquid crystal display panel fails in an input function incorporated type display device having a touch panel. SOLUTION: In a touch panel 2, the rear side of one side among four peripheral sides of an input surface is adhered to the holding frame 1b of a liquid crystal display panel 1a by a double face adhesive tape 3. The tape 3 is also adhered to the rear side of a facing side with release paper 3a attached, and a pressure sensitive adhesive tape 4 is adhered while the frame 1b of the panel 1a is put together integrally with the panel 2. In the case the panel 1a fails and is replaced, the tape 4 is first peeled off. The tape is peeled off easily because the adhesive strength of the tape 4 itself is not so strong. Then, when the frame 1b is pulled apart from the panel 2 at the one side of the peeled side with hands, the tape 3 can easily be peeled off due to the effect of the theory of a lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input function-integrated display device in which a touch panel is arranged on the front of a display unit to have an input function in addition to a display function.

[0002]

2. Description of the Related Art Hitherto, as a display device used in a personal computer or the like, there has been a display device integrated with an input function in which a touch panel is provided on a front surface and an input can be performed by a pen or the like while being superimposed on a display.

A conventional input function integrated display device will be described below with reference to the drawings.

FIG. 3 shows a display device with an integrated input function. FIG. 3 (a) is a plan view and FIG. 3 (b) is a sectional view.
In the figure, reference numeral 11 denotes a display unit having a rectangular display surface, and a liquid crystal display panel 11a is held and integrally formed by a metal holding frame 11b. Reference numeral 12 denotes a touch panel having substantially the same shape as the display surface of the display unit 11. The touch panel 12 is adhered to the holding frame 11b of the liquid crystal display panel 11a by a double-sided tape 13 attached to the back side of four sides around the input surface 12a. .

In the input function-integrated display device configured as described above, in order to perform an input from the touch panel 12, a pen (not shown) is pressed with the input surface 12 of the touch panel 12.
This is performed by touching a and pressing it in accordance with the display position of the display unit 11.

[0006]

In the conventional input function integrated display device, when the liquid crystal display panel 11a breaks down, it is necessary to replace both of them at the same time even if the touch panel 12 does not break down. The reason is that double-sided adhesive tape 1
3 is strong, and the touch panel 12 is bonded to the holding frame 11b at four sides.
Was unable to avoid the damage. If this bonding is performed with an adhesive tape or the like having a lower adhesive strength than the double-sided adhesive tape, the touch panel 12 moves due to the force of pressing the input surface 12a of the touch panel 12 with a pen, causing a deviation from the display unit 11. For this reason, it has been almost impossible to peel off the touch panel and reuse it. This is a problem from the viewpoint of environmental protection in recent years as well as an increase in product cost.

It is an object of the present invention to provide an input function integrated display device having a touch panel, in which the touch panel can be reused when the liquid crystal display panel is broken.

[0008]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention relates to an adhesive tape in which a touch panel is partially adhered to a display unit with a double-sided adhesive tape, and a part of the adhesive tape has a lower adhesive strength than the double-sided adhesive tape. And a part of the section is sandwiched together with the display section by a sandwiching body having a U-shaped cross section. Further, in order to facilitate reuse of the touch panel, a double-sided adhesive tape with release paper is bonded in advance.

Thus, when the liquid crystal display panel breaks down, the non-faulty touch panel can be easily removed and reused.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a display unit having a rectangular display surface for displaying data,
A touch panel for inputting with a pen or the like having an input surface having substantially the same shape as the display surface and for inputting with a pen or the like on the front of the display unit, wherein the touch panel has a part of the back side around the input surface with a double-sided adhesive tape. A liquid crystal display panel, further comprising an input function-integrated display device, wherein the liquid crystal display panel is attached to the display unit, and another part is attached to the display unit with an adhesive tape having a lower adhesive strength than the double-sided adhesive tape. It has the effect that the touch panel can be easily removed from the touch panel.

According to a second aspect of the present invention, in the input-function-integrated display device according to the first aspect, the touch panel is provided on a display portion with a double-sided adhesive tape on the back side of one of four sides around a rectangular input surface. It is adhered, and at least a part of the other side is adhered to the display unit with an adhesive tape. Since the attachment is performed at each location, the touch panel can be quickly moved from the liquid crystal display panel. It has an effect that the load on the touch panel is small.

According to a third aspect of the present invention, there is provided a display unit having a rectangular display surface for displaying data, and an input surface having substantially the same shape as the display surface. A touch panel for performing the operation, wherein the touch panel has a back side of one of the four sides around the input surface adhered to the display unit with a double-sided adhesive tape, and at least a part of the other side has a U-shaped cross section. An input function integrated type display device characterized by being held together with the display unit by a holding member of a mold, and since one side is not attached, the holding member can be reused when removing the touch panel from the liquid crystal display panel, It has the effect that it is not necessary to discard the adhesive tape or the like.

According to a fourth aspect of the present invention, in the input function-integrated display device according to the first or third aspect, the touch panel displays a back side of one of four sides around a rectangular input surface with a double-sided adhesive tape. A double-sided adhesive tape with a release paper is adhered to at least one other side, and when the touch panel is removed and reused, a new double-sided adhesive tape is attached. Since there is no need for this, and it can be pasted in advance, there is an effect that an accurate pasting position can be realized as compared with the case of pasting later.

According to a fifth aspect of the present invention, in the input-function-integrated display device of the fourth aspect, the touch panel is adhered to the display section with a double-sided adhesive tape on the back side of one of four sides around the input surface. , Characterized in that a double-sided adhesive tape with release paper is adhered to the back side of the other three sides,
Since double-sided adhesive tape is attached to all sides around the touch panel, it not only prevents intrusion of dust and the like,
It has an effect that the touch panel can be stably supported.

An embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 shows a display device with an integrated input function according to a first embodiment of the present invention.
1A is a plan view, and FIG. 1B is a cross-sectional view. In the figure, reference numeral 1 denotes a display unit having a rectangular display surface, in which a liquid crystal display panel 1a is integrally held by a metal holding frame 1b. Reference numeral 2 denotes a touch panel having substantially the same shape as the display surface of the display unit 1. A holding frame 1b of the liquid crystal display panel 1a is provided with a double-sided adhesive tape 3 attached to the back of one of four sides around the input surface 2a. Adhered to. Further, a double-sided adhesive tape 3 is attached to the back side of one opposing side with a release paper 3a, and the holding frame 1b of the liquid crystal display panel 1a and the touch panel 2 are integrally joined together to form an adhesive tape 4
Is pasted.

In the input function-integrated display device configured as described above, in order to input data from the touch panel 2,
This is performed by placing a pen (not shown) on the input surface 2 a of the touch panel 2 and pressing the pen in accordance with the display position of the display unit 1. The double-sided adhesive tape 3 has an adhesive strength, and the touch panel 2 does not move due to the force of pressing the input surface 2a of the touch panel 2 with a pen, and does not shift from the display unit 1.

Next, when the liquid crystal display panel 1a is broken and replaced, the adhesive tape 4 is first peeled off. The adhesive tape 4 itself can be easily formed because the adhesive strength is not so strong.
Then, when the holding frame 1b and the touch panel 2 are manually separated from each other on one side of the peeled side, the principle of leverage of the double-sided adhesive tape 3 can be easily peeled off. Then, the liquid crystal display panel 1a is replaced, and assembly is performed again. At this time, since the double-sided adhesive tape 3 that has already been peeled has reduced adhesive strength, the release paper 3a of another double-sided adhesive tape 3 remaining on the touch panel 2 is peeled off and adhered to the holding frame 1b. Then, the holding frame 1b of the liquid crystal display panel 1a and the touch panel 2 are integrally joined together on one opposing side (the side to which the double-sided adhesive tape was attached before replacement), and a new adhesive tape
Paste again.

As described above, when the liquid crystal display panel 1a breaks down, the touch panel 2 can be reused, and the replacement operation can be easily performed.

In this embodiment, the pressure-sensitive adhesive tape 4 is stuck on only one side of the double-sided adhesive tape 3, but may be formed on other sides or a plurality of sides.

Further, if the double-sided adhesive tape 3 with the release paper is attached to all other sides, not only the invasion of dust and the like can be prevented, but also the touch panel 2 can be stably supported.

(Embodiment 2) FIG. 2 shows a display device with an integrated input function according to a second embodiment of the present invention.
2A is a plan view, and FIG. 2B is a cross-sectional view. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The difference from the first embodiment is
Instead of the adhesive tape, a holding body 5 is used. The holding body 5 is a resin molded product having a U-shaped cross section. The U-shaped shape is wide at the bases of both arms, gradually narrows, and widens near the tip. The narrowest part of the width of both arms is slightly smaller than the combined width of the holding frame 1b of the display panel 1a and the touch panel 2 in a natural state, and the holding frame 1b and the touch panel 2 are simultaneously held together so as to be sandwiched. When fitted, the U-shape expands and the elastic force of the resin is generated, so that the holding frame 1b and the touch panel 2 can be held together.

In the input function-integrated display device configured as described above, the procedure for replacing the liquid crystal display panel 1a due to failure is performed in place of the operation of peeling off the adhesive tape 4 in the first embodiment. Remove the body 5 and perform. Then, when the liquid crystal display panel 1a is replaced and reassembled, the holding body 5 is attached instead of the operation of attaching the adhesive tape 4. Other procedures are the same as in the first embodiment.

As described above, when the liquid crystal display panel 1a breaks down, the touch panel 2 can be reused and the replacement operation can be easily performed. When the touch panel 2 is removed from the apparatus, the adhesive glue does not remain and becomes dirty like an adhesive tape, and the effect that the holding body 5 can be reused and the adhesive tape or the like does not need to be discarded can be obtained. it can.

[0025]

As described above, according to the present invention, only a part of the touch panel is adhered to the display unit with the double-sided adhesive tape, and part of the touch panel is adhered to the display unit with an adhesive tape having a lower adhesive strength than the double-sided adhesive tape. The liquid crystal display can be mounted or partially elastically held together with the display unit by a holding body having a U-shaped cross section, and a double-sided adhesive tape with release paper is bonded in advance. When the panel breaks down, an advantageous effect that a touch panel that does not break down can be easily removed and reused can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view and a cross-sectional view of an input function-integrated display device according to a first embodiment of the present invention.

FIG. 2 is a plan view and a cross-sectional view of an input function-integrated display device according to a second embodiment of the present invention.

FIG. 3 is a plan view showing a conventional input function integrated display device,
And sectional views

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display part 1a Liquid crystal display panel 1b Holding frame 2 Touch panel 3a Release paper 3 Double-sided adhesive tape 4 Adhesive tape 5 Nipping body

Continuation of the front page (72) Inventor Ichiro Yamagami 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 2H093 NC72 ND49 ND60 5B087 AB05 CC02 CC12

Claims (5)

[Claims] 1. A display unit having a rectangular display surface for displaying data, and a touch panel having an input surface having substantially the same shape as the display surface and performing input with a pen or the like on a front surface of the display unit. The touch panel has a part on the back side around the input surface adhered to the display unit with a double-sided adhesive tape, and another part attached to the display unit with an adhesive tape having a lower adhesive strength than the double-sided adhesive tape. A display device with an integrated input function. 2. A touch panel, wherein the back side of one of four sides around a rectangular input surface is adhered to a display unit with a double-sided adhesive tape, and at least a part of another side is adhered to the display unit with an adhesive tape. The display device with an integrated input function according to claim 1, wherein the display device is worn. 3. A display unit having a rectangular display surface for displaying data, and a touch panel having an input surface having substantially the same shape as the display surface and for inputting with a pen or the like on the front surface of the display unit. The touch panel is bonded to the display unit with a double-sided adhesive tape on the back side of one of four sides around the input surface;
An input-function-integrated display device, wherein at least a part of one other side is held together with the display unit by a holding body having a U-shaped cross section. 4. The touch panel has a back side of one of four sides around a rectangular input surface adhered to a display unit by a double-sided adhesive tape, and a double-sided adhesive tape with a release paper is adhered to at least the back side of another side. The input function-integrated display device according to claim 1, wherein the input function is integrated. 5. The touch panel has one of four sides around an input surface.
5. The input function integrated type display device according to claim 4, wherein a back side of the side is adhered to the display unit by a double-sided adhesive tape, and a double-sided adhesive tape with release paper is adhered to the back sides of the other three sides.