JP6450493B1 - Touch panel system for flexible display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel system for a flexible display which is simple in apparatus configuration, hardly affected by ambient temperature, is deformable, and allows a user to directly touch the flexible display.
SOLUTION: A touch panel system 1 includes one surface 11 made of a material having flexibility and the other surface 12 made of a material having visible light transmission, and a fluid colored in a space sandwiched between both surfaces. 20 includes a bag-like touch panel main body V that accommodates 20, an elastically deformable sheet 17, a camera 50 that captures the other surface, and an image analysis unit 100 that analyzes RGB values of pixels of the captured image. The external surface generated by deformation of the flexible display 200 receives one surface and the other surface close to each other, and the camera shoots the color change of the other surface caused by the fluid moving from the adjacent location 14 Based on the RGB value analysis result of the pixel of the image, the coordinates of the adjacent part are calculated and reflected on the image of the flexible display.
[Selection] Figure 1

Description

  The present invention relates to a touch panel system for a flexible display that can be deformed into an arbitrary shape by containing a colored fluid.

Electronic information devices such as computers and portable information terminals are equipped with a touch panel system that combines an input device and a display device (display).
There are various types of touch panel systems such as a capacitive method, a resistive film method, an ultrasonic surface acoustic wave method, and an optical method (infrared optical imaging method).
The touch panel system invented by the inventor of the present application includes a bag-like touch panel main body that contains a colored fluid therein, a camera, and an image analysis unit that analyzes RGB values of pixels of a captured image of the camera. . An external force is applied to the touch panel body, and one surface of the touch panel body and the other surface come close to each other. Based on the RGB value analysis result of the pixel of the photographed image by the analysis unit, the coordinates and shape of the adjacent portion are calculated and reflected in the video of the video display device (Patent Document 1). This touch panel system can be deformed because fluid is contained in the bag-shaped touch panel body, and has an advantage that a touch panel having an arbitrary shape can be formed and an advantage that the configuration is simple and the manufacturing cost is low.

Japanese Patent No. 6349048

However, the above prior art has the following problems.
The above-described capacitance method, resistive film method, ultrasonic surface acoustic wave method, and optical method (infrared optical imaging method) are all complicated in apparatus configuration, so that there is a problem that production costs increase and failures are likely to occur. is there. Also, there is a problem that the user cannot use it by deforming it into an arbitrary shape at the time of use.
Further, the technique of Patent Document 1 changes the image of a separately arranged video display device based on the coordinates and shape of the position (proximity location) where the user touches the touch panel body, and the user changes the video display device. It is not a mechanism to touch. That is, there is a problem that when the user touches the video display surface, the video at that position does not change.

  In view of the above problems, it is an object of the present invention to provide a touch panel system for a flexible display that has a simple device configuration, is not easily affected by ambient temperature, can be deformed, and can be directly touched by a user. To do.

  In the touch panel system for a flexible display of the present invention, one surface is made of a material having flexibility, the other surface is made of a material having visible light permeability, and is sandwiched between the one surface and the other surface. A bag-like touch panel main body containing a colored fluid in the space formed, an elastically deformable sheet, a camera capable of photographing light of a wavelength in the visible light region and photographing the other surface, An image analysis unit that analyzes RGB values of pixels of a captured image of the camera, and is used integrally with a flexible display, and the back surface of the sheet is in close contact with the one surface. The surface is in close contact with the back surface of the flexible display, the one surface and the other surface are close to each other by receiving an external force generated by the deformation of the flexible display, The camera shoots a change in color of the other surface caused by the fluid moving from a contact point, and the image analysis unit is arranged on the other surface based on an RGB value analysis result of pixels of the captured image. In this case, at least one of the coordinates of the proximity location and the shape of the proximity location is calculated and reflected on the image of the flexible display.

Further, the thickness of the sheet is larger than the height of the convex portion on the back surface of the flexible display.
Further, the one surface is formed of a material having visible light permeability, and the back surface of the sheet is colored in a single color.
In addition, a plurality of protrusions are provided on the back surface of the sheet.
In addition, a plurality of protrusions facing the space side from any one of the one surface or the other surface are provided.
Further, the length of each of the plurality of protrusions is different.
Further, the protrusion is made of metal, and heat cooling efficiency is improved by transferring heat generated from the flexible display to the fluid through the sheet and the protrusion.
Further, the fluid is a liquid.

Further, the image analysis unit calculates the proximity distance between the one surface and the other surface at the proximity location by comparing the RGB value of the fluid and the RGB value of the pixel of the captured image. It is characterized by.
In addition, the color or transparency of the fluid can be changed.
Further, the touch panel main body has a shape imitating a part of a human body.
The touch panel body may include a first storage portion that is recessed toward the space.

In addition, a fluid pressure control mechanism for controlling the pressure acting on the touch panel main body from the fluid is provided, and the fluid pressure control mechanism is at least one of the coordinates of the proximity location and the shape of the proximity location. The pressure is changed based on the pressure.
In the touch panel system for a flexible display of the present invention, one surface is made of a material having flexibility, the other surface is made of a material having visible light permeability, and is sandwiched between the one surface and the other surface. A bag-like touch panel main body containing a colored fluid in the space formed, an elastically deformable sheet, a camera capable of photographing light of a wavelength in the visible light region and photographing the other surface, An image analysis unit that analyzes RGB values of pixels of a photographed image of the camera, and is used integrally with a flexible display, and the surface of the sheet is the one surface inside the touch panel body unit And having a plurality of protrusions facing the space on the back surface thereof, the one surface being in close contact with the back surface of the flexible display, The camera captures a change in the color of the other surface that occurs when the one surface and the other surface come close to each other in response to an external force generated by deformation of the rewritable display and the fluid moves from the proximity location. Then, the image analysis unit calculates at least one of the coordinates of the proximity location on the other surface and the shape of the proximity location based on the RGB value analysis result of the pixel of the captured image, and It is reflected in the video of a flexible display.

In the touch panel system of the present invention, when the user presses the image display surface of the flexible display with a finger or the like to apply an external force, the flexible display and the sheet are deformed, and the one surface and the other surface of the touch panel main body are close to each other. The fluid moves from the adjacent location. Since the color of the other surface changes as the fluid moves from a nearby location, this color change is photographed with a camera. The image analysis unit calculates at least one of the coordinates of the proximity location on the other surface and the shape of the proximity location based on the captured image of the camera, and reflects it on the image of the flexible display.
In the touch panel system of the present invention, a flexible sheet that can be elastically deformed is closely attached between one surface of the touch panel body and the back surface of the flexible display. In general, the back surface of the flexible display (the surface opposite to the image display surface) is provided with a thin-film circuit pattern, a strip-shaped conductor or IC, etc. for supplying power to the organic EL elements, etc. Is forming. If the back surface of the flexible display is placed on one surface of the touch panel main body without using an elastically deformable sheet, the periphery of the convex portion does not adhere to one surface, and a gap is generated. There is a problem that it is difficult to capture the color change of the adjacent portion with a camera. In the present invention, the elastically deformable sheet is recessed at the portion pressed by the convex portion, so that the entire back surface of the sheet can be securely adhered to one surface of the touch panel body. Therefore, it is possible to accurately capture the change in the color of the adjacent portion with the camera without being affected by the shape of the back surface of the flexible display.

Also, by using a sheet colored in a single color, even if a pattern or text is printed on the back of the flexible display, it will not appear in the captured image of the camera, so the touch panel system can operate normally (similar effects Can also be obtained by coloring one of the surfaces).
In addition, since a fluid (liquid or gas) is contained inside the touch panel body, unlike a conventional touch panel, the user can easily deform the touch panel according to the usage pattern, and a touch panel with a soft touch can be obtained. .
If the other surface is also made of a flexible material, the touch panel body can be compressed and stored by discharging the fluid in the touch panel body to the outside, and the portability can be improved.
If a wide-angle camera with a wide viewing angle is used, it is possible to photograph close-up areas with only one camera regardless of the size of the touch panel body (the area of one or the other surface). Compared to a touch panel using elements, the cost when the touch panel body is enlarged can be reduced.

If the other surface is also made of a flexible material, the touch panel body can be compressed and housed together with the flexible display by discharging the fluid in the touch panel body to the outside, and the portability can be improved.
By making the thickness of the sheet larger than the height of the convex part, it is possible to sufficiently take the depth of the depression pressed by the convex part of the sheet, and the entire back surface of the sheet One surface can be securely adhered.
By forming one surface with a material having visible light transparency and making the back surface of the sheet a single color, the entire color of one surface of the touch panel body as seen from the camera is made uniform. The change in color can be accurately captured from the camera.
In addition, if one side is formed of a material having visible light transparency and the color of the back side of the sheet is different from the color of the fluid, by filtering using the RGB values of these two colors, Compared with the case of filtering only with the RGB value of the fluid, the accuracy in calculating the coordinates of the adjacent portions can be dramatically increased. In addition, by acquiring pixels of the intermediate color part where two colors are mixed in the image analysis unit, the user is in contact with a weak force that does not allow one surface to be in close contact with the other surface, that is, complete contact and non-contact An intermediate state can be detected.

When the entire touch panel body is formed of a soft and flexible material, a transparent solid exoskeleton that surrounds the periphery of the touch panel body may be tightly fixed to the touch panel body. Since the deformation due to the weight of the touch panel body can be suppressed by the exoskeleton, the amount of deformation of the touch panel body due to the external force from the user can be accurately detected.
By providing a plurality of protrusions on the back surface of the sheet or the other surface of the touch panel main body, even if the deformation amount of the flexible display is small, it is possible to easily bring one surface of the touch panel main body close to the other surface. it can. In other words, the deformation amount of the flexible display can be suppressed, and plastic deformation and breakage of the flexible display can be prevented.
By changing the length of the protruding portion, the finger or the like moves from when one surface starts to move in the direction of the other surface due to the action of an external force such as the finger until the image analysis unit actually detects the contact state. The distance (stroke distance) can be adjusted arbitrarily.
If the lengths of the plurality of protrusions are made different, the stroke distance can be made constant throughout the touch panel body even when the thickness of the touch panel body is not uniform.
By providing the touch panel body with a recess for inserting the protrusion, the accuracy of operation can be improved and the sheet can be firmly fixed to the touch panel body. Further, even when the touch panel main body is arranged perpendicular to the ground, the touch panel main body and the sheet are not detached.

The touch panel system of the present invention contains a fluid in the touch panel body. In particular, if a liquid (such as water) is accommodated as a fluid, a cooling effect can be obtained by cooling the heat generated from the flexible display with the liquid. In particular, if the protrusion is made of metal, the protrusion functions as a heat sink by utilizing the high thermal conductivity of the metal, and the water cooling effect can be further enhanced. Even if the surface of the sheet is covered with a thin metal plate, a high water cooling effect can be obtained. Further, by adjusting the viscosity and amount of the fluid, the softness, thickness and stroke distance when the user touches the flexible display can be adjusted.
The image analysis unit can also calculate the proximity distance between one surface and the other surface in the proximity location. The analysis by the layer analysis unit is performed by comparing the RGB value of the fluid with the RGB value of the pixel of the image captured by the camera. In other words, it is possible to specify the coordinates of the proximity location, the shape of the proximity location, and the proximity distance simply by filtering the pixels of the captured image of the camera with the RGB value of the liquid color, so the load on the computer is low, and a low-speed IC or CPU such as a mobile phone The phone's CPU operates at high speed. Also, the proximity value between one surface and the other surface is calculated by comparing how close the RGB value of each pixel of the captured image is with the RGB value of the fluid color, and the calculated proximity distance is It can also be output on the image of the flexible display as the “contact strength” when an external force is applied to the surface.
The color or transparency of the fluid can be adjusted so that the difference between the RGB value of the fluid and the RGB value of the pixel of the image captured by the camera is significant. As a result, even when the thickness of the touch panel body (distance from one surface to the other) is about several tens of centimeters to several meters, it is only necessary to bury one surface lightly by the action of external force. A responsive touch panel system can be obtained.
Further, the stroke distance can be arbitrarily adjusted from several millimeters to several meters by adjusting the color or transparency of the fluid.

If the touch panel body is made of a flexible material having transparency such as soft vinyl chloride, the sheet and the flexible display are soft enough to bend, so that the safety is high even when falling or falling. In addition, if the touch panel body has an arbitrary shape such as a shape imitating a part of a human body or a cylindrical shape, a touch panel other than a conventional plate shape can be obtained.
Various devices and the like can be stored by providing the first storage unit in the touch panel body.
If the touch panel body is fixed to the surface of the cushion filled with air, a touch panel with excellent cushioning properties can be obtained.
A second display unit may be provided on the cushion to store the flexible display, the seat, and the touch panel body.
Moreover, you may decide to provide a pocket in a cushion and insert and fix a touchscreen main-body part, a sheet | seat, and a flexible display.
By changing the pressure of the fluid using an electric pump or a jet injection device as the fluid pressure control mechanism, it is possible to change the hardness and touch feeling when the user contacts the flexible display.

Figures (a) and (b) showing the configuration of the main body of the touch panel system Example of algorithm for determining the coordinates of the proximity position and the shape of the proximity location Block diagram of internal processing flow of image analysis unit Example of an algorithm that determines the proximity distance by comparing how close the RGB value of the pixel of the captured image is to the RGB value of the colored fluid Explanation of the principle that the stroke distance can be freely controlled by changing the transparency and color of the colored fluid (a) and (b) Explanation of proximity parts that cause noise due to the convex part on the back of the flexible display when there is no sheet Explanation of the principle of absorption in the vicinity where noise occurs due to the convex part on the back of the flexible display when there is a sheet Explanation of the principle of the sheet with protrusions (a) and (b) Explanation of the principle of stroke distance adjustment by adjusting the length of the protrusion (a) and (b) Example of providing recesses for inserting and fixing protrusions on the sheet Example of improving water-cooling efficiency with fluid using metal protrusions Example (a) in which a protrusion is provided on one surface itself and Example (b) in which a sheet with a protrusion is provided inside the fluid Examples (a) and (b) in which a transparent plate-like exoskeleton is closely fixed to the other surface of the touch panel body Front view of the touch panel body with the cushion (a) and front view showing the state in which the touch panel body is raised without the cushion (b) Examples (a) to (c) of various shapes of the touch panel body Example of providing a fluid pressure control mechanism to control the hardness and cushioning properties of the touch panel at the time of contact by controlling the fluid pressure Block diagram of internal processing flow with fluid pressure control mechanism Example of controlling the hardness and cushioning of the proximity position with a jet injection device Example of a storage unit that can insert and fix an object in the touch panel body An embodiment provided with a storage portion for storing an object in a cushion and a transparent pocket for storing a touch panel body portion

[First embodiment]
Hereinafter, a first embodiment of a touch panel system for a flexible display of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the touch panel system 1 is generally configured by a touch panel body V, an elastically deformable sheet 17, a camera 50, and a computer as an image analysis unit 100.
The touch panel body V is a hollow bag-like member having one surface 11 made of a transparent material having flexibility and the other surface 12 made of a transparent material having visible light permeability. The material of the touch panel body V is preferably a material having transparency and flexibility such as soft vinyl chloride and low density polyethylene, but is not necessarily limited thereto. As will be described later, the fluid 20 is accommodated inside the touch panel body.
The camera 50 may be any camera that can capture a still image or a moving image of light having a wavelength in the visible light region.However, since color analysis of the fluid 20 is necessary, light other than the visible light region such as the ultraviolet region and the infrared region may be used. Night-vision camera and infrared thermography camera to shoot are not suitable.

The image analysis unit 100 may be any computer that has the ability to analyze the pixel color (RGB value) of the image captured by the camera 50. The image analysis unit 100 is not only a normal personal computer but also a small mobile device. A computer, IC chip, ASIC, etc. may be used.
The fluid 20 is a product obtained by coloring a liquid such as water or a gel-like liquid having viscosity, and is accommodated in the touch panel body V. The fluid may be a gas such as air.
The touch panel system of the present invention assumes a flexible display or other video display device (many products manufactured using an organic EL or the like) having flexibility as an output device that outputs a signal that detects contact. As shown in FIG. 1, a sheet 17 is sandwiched between the back surface of the flexible display 200 and one surface 11 of the touch panel body V.
The sheet 17 is a sheet-like or plate-like object made of a material such as elastically deformable rubber or urethane. Since the sheet 17 is elastically deformable, no matter what the shape of the back surface of the flexible display 200 is, the back surface is kept flat and in close contact with the one surface 11 of the touch panel body. As a result, the coordinates and shape of the location where the user's hand UH touches the touch panel body V can be accurately acquired by the image analysis unit 100 (details will be described later).
By placing the user's hand UH, etc. on one surface 11 side and the other surface 12 side facing the camera 50, the other surface 12 having visible light transparency is simulated by the color of the fluid 20 And the state is photographed by the camera 50.
The fluid 20 is injected into the inside from the inlet 13 of the touch panel body V. Further, by discharging the fluid 20 from the inlet 13 to the outside, the touch panel body V can be compressed and stored.
In the present embodiment, the shape of the touch panel body V is a rectangular shape in plan view, but may be a circular shape in plan view, a polygonal shape such as a triangle or a pentagon, or a cross section along the vertical direction. The shape may be similar to a kamaboko shape or a torso of a human body.

  As shown in FIG. 1 (b), by bringing the user's hand UH into contact with the image display surface of the flexible display 200, an external force is applied to one surface 11 via the sheet 17, and one surface 11 and the other surface 12 are applied. And the proximity location 14 is formed. One surface 11 and the other surface 12 may be brought into close contact with each other. Since the fluid 20 at the proximity point 14 moves around it, the color of the proximity point 14 on the other surface 12 viewed from the camera 50 may appear to be pseudo-colored with the color of the fluid 20 as in other areas. No. In the present invention, this principle is used to detect a user operation on the touch panel body V. Specifically, as shown in FIG. 2, the other surface 12 including the proximity portion 14 is photographed by the camera 50, and the image analysis unit 100 is an area not colored with the color of the fluid 20 based on the photographed image 51, that is, The pixels at the close location 14 are determined by RGB analysis. Then, the XY coordinates (coordinates of the proximity part 14) and the shape (shape of the proximity part 14) of the relative position of the proximity part 14 on the other surface 12 are obtained, and the XY of the pointer image 201 in the flexible display 200 is obtained as an output value. Reflects on coordinates and shape and outputs.

A specific example of the internal processing of the image analysis unit 100 is shown in FIG.
First, in STEP 1, a captured image 51 of the other surface 12 including the proximity portion 14 captured by the camera 50 is captured by the image capturing unit 101. In the next STEP2, the image RGB analysis unit 103 acquires the RGB value of the fluid 20 color stored in the RGB color storage unit 102 of the fluid color (in the example of FIG. 3, the color of the fluid 20 is red). The RGB values are R: 255, G: 0, B: 0), and the pixel values of the captured image 51 are sequentially filtered using the RGB values.
Then, a pixel in an area not colored with the color of the fluid 20 (in the example of FIG. 3, an RGB value is a pixel other than R: 255, G: 0, B: 0) is extracted, and the pixel in the captured image 51 is extracted. The coordinates and the relative coordinates or shape in the other surface 12 are acquired, and these are sent to the image output unit 104 as the coordinates and shape data of the area of the proximity location 14.
Finally, in STEP 3, the image output unit 104 generates a pointer image or the like to be output to the flexible display 200 based on the coordinates and shape data of the area of the proximity point 14, and outputs the image to the flexible display 200 to finish. .
If only the position of the proximity part 14 is necessary and it is not necessary to acquire shape data, it is not necessary to filter all the pixels in the captured image 51 in STEP 2, and when a pixel other than the color of the fluid 20 is found. Significant speedup can be achieved by acquiring and outputting the coordinates of the pixel. Further, in the example of FIG. 3, for the sake of explanation, the color of the fluid 20 is red, and the RGB values are R: 255, G: 0, B: 0, but other colors may be used as the fluid 20 color.

When one surface 11 is formed of a material having flexibility and visible light transmission, the sheet 17 disposed on one surface 11 side is fluid 20 when viewed from the other surface 12, that is, the camera 50. It looks colored with. In this case, how intensely it looks colored depends on the distance between one surface 11 and the other surface 12 of the touch panel body V. In the present invention, this principle is used to identify how strong external force is applied to the touch panel body V (one surface 11) by the user's hand UH via the flexible display 200 and the sheet 17 to the flexible display 200. Can be output.
A specific example is shown in FIG. When a strong external force is applied to the touch panel main body V by the user's hand UH to bring the one surface 11 and the other surface 12 into close contact with each other, the distance between the one surface 11 and the other surface 12 in the proximity portion 14 is zero. There is no fluid 20 in between. Therefore, as shown in FIG. 4 (a), the proximity point 14 is assumed to be the color of the sheet 17 in the captured image (camera captured image 52) viewed from the camera 50 (in the example of FIG. 4, the color of the sheet 17 is blue (BLUE)). The RGB values of R: 0, G: 0, and B: 255 are visible through the adjacent portion 14 as they are. Then, a character string image 202 (“Strong Push !!”) corresponding thereto is output to the flexible display 200.

On the other hand, when a weak external force is applied to the touch panel body V by the user's hand UH without bringing the one surface 11 and the other surface 12 into contact with each other, according to the proximity distance as shown in FIG. The sheet 17 at the adjacent portion 14 viewed from the camera 50 appears to be colored to some extent with the color of the fluid. In the example of FIG. 4 (b), the RGB value is R: 150, G: 0, B: 150, which is closer to reddish purple than blue (BLUE). Then, the character string image 203 (“Weak Push!”) Corresponding thereto is output to the flexible display 200.
Also, when no external force is applied to the touch panel main body V with the user's hand UH, the distance between the one surface 11 and the other surface 12 is large, so the sheet viewed from the camera 50 as shown in FIG. 17 appears completely colored with the fluid 20 color. In the example of FIG. 4, the color of fluid 20 is red and its RGB value is R: 255, G: 0, B: 0). Then, a character string image 204 (“No Push!”) Corresponding thereto is output to the flexible display 200.
As described above, when one surface 11 is formed of a material having flexibility and visible light transmission, how close the sheet 17 is to the color of the fluid 20 from the original color, more strictly close By comparing how close the RGB value of the pixel color of the area 14 area is to the RGB value of the fluid 20 color, the user can adjust the strength of the touch panel body V via the flexible display 200 and the sheet 17. It is analogized whether the surface is pressed (how much external force is applied to one surface 11), and is output to the flexible display 200.
When one surface 11 is formed of a material that has flexibility and does not have visible light transmittance, the adjacent portion 14 viewed from the camera 50 in a state where the one surface 11 and the other surface 12 are in close contact with each other. The color is the color of one surface 11, that is, the color of the material of one surface 11 itself. This is because the sheet 17 is completely covered with the one surface 11 and cannot be seen from the camera 50. In this case, since the color of the one surface 11 plays the role of the color of the sheet 17, the image analysis unit 104 and the coordinates of the proximity point 14 and the proximity are based on the RGB value analysis result of the pixel of the captured image 51 in exactly the same manner as described above. At least one of the two shapes of the portion 14 can be calculated and reflected in the video of the flexible display 200.

In the present invention, the camera 50 shows how much one surface 11 and the sheet 17 (when one surface 11 is formed of a transparent material) viewed from the other surface 12 side is colored with the color of the fluid 20. Since the proximity point 14 is detected, the sensitivity of the fluid 20 by changing the color or transparency of the fluid 20, that is, the image analysis unit after one surface 11 starts moving in the direction of the other surface 12 due to the action of an external force such as a finger It is possible to arbitrarily adjust the distance (stroke distance) that the finger etc. moves before actually detecting the contact state.
A specific example is shown in FIG. If the sheet 17 uses a fluid 21 with low transparency as shown in FIG. 5 (a), such as ink used in calligraphy, the distance between one surface 11 and the other surface 12 is zero, that is, complete contact due to the low transparency. Only one side 11 or sheet 17 (when one side 11 is made of a transparent material) is only visible from the camera 50. Therefore, the contact cannot be detected from the captured image of the camera 50 only by bringing the one surface 11 and the other surface 12 close to each other. On the other hand, when a fluid 22 having a high transparency as shown in FIG. 5 (b), for example, a liquid such as a juice colored in a light color, is used, the distance between the one surface 11 and the other surface 12 is a certain distance (see FIG. The surface 11 or the sheet 17 can pass through the fluid 22 and be seen from the camera 50 just by moving close to d2 in the example of 5). Therefore, the contact can be detected even if the adjacent portion 14 is not completely adhered. In other words, it is possible to easily change the sensitivity of the touch panel system by providing the inlet 13 that can freely replace the internal fluid 21 and the fluid 22 and replacing the internal fluid from the inlet 13 with fluid of appropriate transparency and color. That is, the distance d2 (stroke distance) between the one surface 11 and the other surface 12 can be freely changed or controlled.

Further, the stroke distance d2 can be set to an extremely long distance on the order of several tens of centimeters to several meters. For example, if you want to set the stroke distance d2 on the order of several meters, you can use a fluid with high transparency (highly transparent fluid such as water). Conversely, if you want to set the stroke distance d2 on the order of several millimeters or less, the transparency is A very low fluid may be used. As described above, in the present invention, a touch panel body having an arbitrary sensitivity and an arbitrary thickness can be obtained by adjusting the transparency and color of the fluid.
Furthermore, the fluid used in the present invention only needs to be colored. For example, colored drinking water such as juice or beer can be used. Although details will be described later, the shape of the touch panel main body V is cylindrical or human. It can also be shaped.
As a means for closely fixing the sheet 17 and the flexible display 200 to the touch panel main body V, in addition to fixing by welding or adhesion, a transparent and flexible material (for example, transparent soft vinyl chloride) is used. A pocket for inserting and fixing the completed flexible display 200 and the sheet 17 may be provided on the one surface 11 side of the touch panel body V. The flexible display 200 and the sheet 17 may be fixed to the touch panel body V using this pocket. By doing so, the user can freely construct the touch panel system of the present invention using a flexible display on hand. Furthermore, the surface of the flexible display can be prevented from being damaged or soiled when the flexible display is inserted and fixed in the pocket. In addition, since the seat 17 can be freely changed, the details will be described later, but the user can freely change the stroke distance according to the situation by exchanging with the seat 17 provided with a protrusion for adjusting the stroke distance. .
In the present specification, the user's hand UH is described as means for applying an external force for bringing the one surface 11 and the other surface 12 into close contact with each other. However, for example, a rod-like object, a touch pen, or the like may be used.

Details of the role of the sheet 17 will be described.
In the present invention, the back surface of the sheet 17 is in close contact with the one surface 11, and the front surface is disposed in close contact with the back surface of the flexible display 200.
The sheet 17 is made of an elastically deformable material such as rubber, urethane, or soft PVC, absorbs all irregularities due to the back part 210 of the flexible display 200, and keeps one surface 11 flat so that the adjacent portion 14 is image-analyzed. Part 100 is able to get it correctly.
As a more specific example, the case where the sheet 17 is used (FIG. 6) and the case where the sheet 17 is not used (FIG. 7) will be described. As shown in FIG. 6, the sheet 17 is not directly used on the back surface of the flexible display 200. If the surface 11 is fixed tightly to the flexible display 200, some rear parts 210 (this includes a control IC, an external communication device, a heat sink, a terminal, a DIP switch, a button, a backlight device, a power supply conductor, If there is a convex part due to the battery etc.), the fluid 20 moves due to the convex part, so that an unintended noise proximity part 60 may occur even where the user's hand UH is not touching. is there. In this case, since the noise proximity portion 60 is also detected in addition to the original proximity location 14 generated by the touch of the user's hand UH, the coordinates touched by the user's hand UH cannot be acquired correctly.
On the other hand, when the sheet 17 is used as shown in FIG. 7, the noise proximity portion 60 as shown in FIG. 6 is obtained by absorbing all the unevenness due to the back part 210 of the flexible display 200 and keeping one surface 11 flat. Since it does not occur, the proximity portion 14 can be correctly acquired by the image analysis unit 100.

As is clear from FIGS. 6 and 7, it is desirable that the thickness of the sheet 17 is at least a thickness that can absorb the convex portion due to the back part 210 of the flexible display 200. In the example of FIGS. 6 and 7, the thickness of the sheet 17 needs to be not less than the height d3 of the convex portion on the back surface of the flexible display. If the thickness of the sheet 17 is reduced to d3 or less, even if the sheet is not touched by the user's hand UH, the proximity portion 60 that always causes noise is generated by the convex portion, or the stroke distance is shortened only at the location where the convex portion is present It is necessary to be careful because there is a possibility that harmful effects will occur.
In addition, even when there is no back part 210 in the flexible display 200, a thin-film part included in the flexible display 200, specifically, a thin-film lead, thin-film or film for supplying power to the organic EL element Because there is a possibility that convex parts of the order of millimeters are generated due to the shape of the backlight. In other words, even if the back surface of the flexible display looks flat with the naked eye, there may be convex portions on the order of millimeters or less. Accordingly, even when the flexible display 200 does not have the back part 210, the thickness that can absorb the convex part of the millimeter order at least without omitting the sheet 17 (that is, the thickness more than the thickness of the flexible display including the convex part). It is necessary to use the sheet 17 made. In particular, the touch panel main body V whose distance between the one surface 11 and the other surface 12 is in the order of millimeters is smaller than that when the distance is in the centimeter order. Care must be taken because 12 is unintentionally easy to adhere.

It is desirable that the sheet 17 is not transparent and is colored with a color different from the fluid 20. If the sheet 17 is made of transparent vinyl, silicon rubber, or the like, the circuit pattern or component on the back of the flexible display is placed in the proximity 14 generated by touching with the user's hand UH as shown in FIG. This is because other printed materials can be seen from the camera 50, and if these are colors close to the color of the fluid 20, the proximity portion 14 may not be detected well by RGB analysis. In order to prevent this, as shown in FIG. 7, the color of the sheet 17 may be a complementary color of the fluid 20 (red) or a color with a separated RGB value (blue, etc.).
Finally, to supplement the color of one surface 11, in the present invention, as described above, one surface 11 or sheet 17 viewed from the other surface 12 side (when one surface 11 is formed of a transparent material) ) Is detected by the camera 50 to detect how close the color 14 is to the color of the fluid 20, and the proximity portion 14 is detected. If a transparent material is used for the sheet 17, it may be compensated by coloring one surface 11 instead. In this case, the accuracy of the touch panel system can be improved by coloring the color of the one surface 11 with a color complementary to the color of the fluid 20 (opposite color) or a color with a different RGB value. For example, when the color of the fluid 20 is red (its RGB value is R: 255, G: 0, B: 0), the color of one surface 11 is blue as a complementary color (its RGB value is R: 0, G: 0, B: 255) and other RGB values may be different from red. In the method of coloring the sheet 17 (i.e., when the one surface 11 is formed of a transparent material without being colored), the color of the back surface of the flexible display 200 is changed by changing the sheet 17 to the indoor lighting environment or the like. Since it can be easily changed according to the color of the fluid 20, it has an advantage that detection accuracy is easily improved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. However, portions having the same configuration as those of the above embodiment are denoted by the same reference numerals and description thereof is omitted.
In general, a thick cushion is more advantageous than a thin cushion in order to obtain a sufficient cushioning property and a psychologically soft feel. However, in order to improve cushioning properties, the touch panel body V is thick or includes a thick part (strictly, the distance between one surface 11 and the other surface 12 is several tens of centimeters, several tens of centimeters or more. Or, when making a touch panel body V) in which an area having a thickness of several meters is present, the distance d between one surface 11 and the other surface 12 is too large as shown in FIG. 8 (a). Therefore, even if the flexible display 200 is pressed down with a strong force or how much the flexible display 200 is deformed, the proximity location 14 (that is, d = 0 or a value in the vicinity of 0) that can be captured by the camera 50 or the image analysis unit 100. May not occur well.
As a device for solving this, as shown in FIG. 8 (b), a protrusion 18 may be provided on the back surface of the sheet 17 so that the one surface 11 and the other surface 12 are brought close to each other. As a result, the stroke distance d2 can be shortened by the length of the protrusion 18 as shown in FIG. 8 (b). In the example of FIG. 8, the stroke is shortened from d to d2 by the protrusion 18. The proximity portion 14 can be generated without applying a strong force with the user's hand UH or largely deforming the flexible display 200. Therefore, even when the thick touch panel body V is used, it is possible to prevent plastic deformation and breakage of the flexible display. Note that the accuracy of the touch panel is improved when the color of the protrusion 18 is the same as the color of the sheet 17 and is colored with a complementary color of the fluid 20 or a color with a separated RGB value.

Also, as shown in FIG. 9 (a), by providing the projections 18 having different lengths on the sheet 17, it is possible to obtain a product in which the stroke distance d2 is changed for each area of the touch panel body V. Furthermore, as shown in FIG. 9 (b), the stroke distance d2 of all areas can be set to the same value in the touch panel body V where the entire thickness of the one surface 11 is not uniform. Thus, the stroke distance d2 can be freely adjusted for each area of the touch panel body V by adjusting the length of the protrusion 18.
Further, as shown in FIG. 10, a recess 19 for fixing the protrusion 18 may be provided. The sheet 19 and the touch panel main body V can be firmly fixed by the concave portion 19, and the sheet 17 cannot be detached even if the touch panel main body V is perpendicular to the ground. In addition, as will be described later in detail as another secondary merit, the area where the projection 18 and the one surface 11 are in contact with each other increases by the amount of the recess 19, so that the heat generated from the back of the flexible display 200 is efficiently transferred to the fluid 20. I can tell it and water-cool. That is, since the protrusion 18 functions as a water-cooled heat sink, it contributes to the stable operation of the flexible display 200.
Further, as shown in FIG. 11, if the protrusion 80 is made of, for example, a metal having high thermal conductivity (if the protrusion 80 is desired to have flexibility, a metal foil may be wound around the protrusion 18), The heat generated from the back surface of the flexible display 200 can be transferred to the fluid 20 more efficiently and water-cooled. At this time, in order to further increase the water cooling efficiency, not only the protrusions 80 but the entire sheet 17 may be made of a material having high thermal conductivity.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. The same reference numerals are given to portions having the same configuration as the above embodiment, and the description thereof is omitted.
In the touch panel system of the present invention, the same effect as that of the second embodiment can be obtained even when the protrusion 18 is provided on the one surface 11 itself. For example, as shown in FIG. 12 (a), a projecting portion 18 is provided on one surface 11 itself, and a proximate portion that occurs when the tip of the projecting portion 18 that is a part of the one surface 11 approaches the other surface 12. You can shoot 14 with the camera 50. In this case, since the protrusion 18 is constantly exposed to the fluid 20, it is preferable to make the protrusion 18 from a water-resistant material such as soft, hard vinyl chloride, or glass. In FIG. 12A, the protrusion 18 is provided on one surface 11 itself, but the protrusion 18 may be provided on the other surface 12 itself. In this case, the projection 18 must also be made of a transparent material having a visible light transmission property (that is, a transparent material) like the other surface 12. It is necessary to be careful because it cannot be taken from. In addition, regarding the water cooling efficiency of the flexible display 200 described above, if the projection 18 is provided on one surface 11 itself, the distance between the projection 18 and the back of the flexible display 200 can be reduced, so that the projection on the other surface 12 itself. Water cooling efficiency is much higher than when 18 is provided.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described, but the same reference numerals are given to portions having the same configurations as those of the above embodiments, and the description thereof is omitted.
As shown in FIG. 12 (b), the sheet 17 may be provided inside the touch panel body V. In that case, the surface of the sheet 17 is in close contact with the one surface 11, and a plurality of protrusions 18 facing the space are provided on the back surface of the sheet 17. Further, the surface of one surface 11 is in close contact with the back surface of the flexible display 200.
With this configuration, the same effects as those of the second or third embodiment can be obtained. In addition, since the convex portion due to the back part 210 of the flexible display 200 is absorbed by the elastic deformation of the sheet 17 through the one flexible surface 11, the proximity portion 60 that causes extra noise due to the convex portion is generated. You can prevent things. Also in this case, since the protrusion 18 is constantly exposed to the fluid 20, it is preferable to make the protrusion 18 from a water-resistant material such as soft, hard vinyl chloride, or glass.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described. The same reference numerals are given to portions having the same configuration as the above embodiment, and the description thereof is omitted.
As shown in FIG. 13 (b), a solid plate-like exoskeleton 15 made of a transparent material having visible light permeability may be tightly fixed to the other surface 12 of the touch panel body V. When the material of the other surface 12 is flexible, when the user's hand UH depresses the flexible display 200, the other surface 12 is also deflected by the external force transmitted through the fluid 20 as shown in FIG. End up. Accordingly, there is a possibility that the fluid 20 between the one surface 11 and the other surface 12 is not discharged well, and the proximity portion 14 is not normally detected. When the plate-like exoskeleton 15 is tightly fixed to the other surface 12 as shown in FIG. 13 (b), when the user's hand UH presses the one surface 11 due to the action of the exoskeleton 15, the other surface The reaction force corresponding to 12 is generated, and the fluid 20 on one surface 11 and the other surface 12 is discharged well. As a result, the proximity portion 14 is normally detected, and the detection accuracy is improved. Further, a table-like touch panel system can be obtained by providing table legs 40 in the exoskeleton 15 and causing the exoskeleton 15 to function as a table top.
The material of the exoskeleton 15 may be any material that is a transparent solid material that does not interfere with the shooting of the camera 50, and examples thereof include glass, acrylic, and polycarbonate.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described, but the same reference numerals are given to portions having the same configurations as those of the above embodiments, and the description thereof is omitted.
As shown in FIG. 14 (a), the touch panel of the present embodiment is characterized in that it includes a transparent cushion 30 in which air is filled in an airtight space 32 inside. Examples of a material constituting the transparent cushion 30 include a transparent and flexible material 33 such as soft vinyl chloride or polyethylene used in a floating ring of a playground equipment.
The touch panel body V is attached to the side surface of the cushion 30 and spreads in the vertical direction. According to the touch panel system of the present embodiment, the fluid 20 moves downward as shown in FIG. It is possible to prevent the lower part of V from bending. Therefore, the touch panel system operates normally regardless of the angle at which the touch panel body V is perpendicular to the ground. Further, as shown in FIG. 14 (a), a camera fixing pocket 34 made of a transparent material for fixing the camera 50 to the cushion 30 may be provided. The reason for making the camera fixing pocket 34 transparent is to prevent the material in the pocket from interfering with the shooting when shooting the other surface 12 from the outside of the cushion 30 without using the camera fixing pocket 34. is there.
Further, since the cushion 30 is flexible or flexible like the seat 17, the cushion 30 may be used in place of the seat 17 by arranging the cushion 30 in place of the seat 17 at the position of the seat 17. . However, it is desirable in terms of the accuracy of the touch panel that the material of the surface of the cushion 30 in the case of replacing the seat 17 is colored in a color complementary to the color of the fluid 20 or a color separated from the color of the fluid 20 and RGB values.
In addition, by using a material with low flexibility as the material of the touch panel main body V, the vertical arrangement of the touch panel main body V may be realized by preventing downward bending due to the weight of the fluid 20, or the touch panel You may implement | achieve vertical arrangement | positioning with the tension | tensile_strength which attaches a string to the four corners of the main-body part V, and pulls the string.

[Seventh Embodiment]
Next, a seventh embodiment of the present invention will be described, but the same reference numerals are given to portions having the same configurations as those of the above embodiments, and the description thereof is omitted.
As shown in FIG. 15 (c), in the touch panel system of the present embodiment, the touch panel body V has a shape imitating a part of the human body, that is, the head and the body.
By making the humanoid touch panel body V flexible or flexible, the coordinates and shape of the proximity location 14 when the user touches the human touch panel body V with the hand UH are obtained. Then, an image reflecting this can be output to the flexible display 200. In addition to this, as shown in Fig. 15 (b), the touch panel body V may be a cylindrical shape, and by using this, the opponent's video can be reflected and it can be played interactively, such as a boxing sandbag. Can be made. Although not directly related to the present invention, the touch panel body is formed by welding soft vinyl chloride used as a material for a floating ring or a pool for playground equipment by means of a welder technique using a known high-frequency current (commonly simply a high-frequency welder). If the portion V is formed, it is possible to form the touch panel body V having various shapes other than the human body and the columnar shape. Note that reference numeral 35 in FIGS. 15 (b) and 15 (c) is a weight for stabilizing the center of gravity at the time of independence.

[Eighth Embodiment]
Next, an eighth embodiment of the present invention will be described. However, portions having the same configurations as those of the above-described embodiments are denoted by the same reference numerals and description thereof is omitted.
As shown in FIG. 16, the touch panel system of the present embodiment includes a fluid pressure control mechanism 38 for controlling the pressure acting on the touch panel main body V from the fluid 20, and the fluid pressure control mechanism 38 is located in the vicinity 14. This is characterized in that the pressure is changed based on at least one of the following coordinates, the shape of the proximity location 14, and the proximity distance.
Specifically, a fluid pressure control mechanism 38 such as an electric pump for changing the pressure of the fluid 20 in the touch panel body V is provided in the touch panel body V. Then, by feeding back the analysis result of the image taken by the camera 50 by the image analysis unit 100 to the fluid pressure control mechanism 38 and changing the fluid pressure, the hardness when the user's hand UH contacts one surface 11 is changed. Or cushioning can be adjusted in real time. For example, the vertical and horizontal coordinates of the proximity point 14 calculated by the image analysis unit 100 (expressed in XY coordinates in FIG. 16) and the depth at which the user's hand UH is buried in one surface 11 (proximity distance, expressed in Z coordinates in FIG. 16) ) And the like can be reflected in the drive control of the fluid pressure control mechanism 38. This makes it possible to change the hardness or cushioning property of the one surface 11 and the flexible display 200 according to the coordinates of the touch position.

A specific processing flow in the image analysis unit 100 at this time is shown in FIG.
First, in the first STEP 1, a captured image of the other surface 12 including the proximity portion 14 captured by the camera 50 is captured by the image capturing unit 101.
In the next STEP2, the RGB value of the fluid 20 stored in the RGB value storage unit 102 of the fluid color is acquired by the image RGB analysis unit 103 (in the example of FIG. 17, the color of the fluid 20 is red). The RGB values are R: 255, G: 0, B: 0), each pixel value of the captured image is sequentially filtered with the RGB values, and the pixels in the area not colored with the fluid 20 color (in FIG. 17) In the example, pixels whose RGB values are other than R: 255, G: 0, B: 0) are extracted. Then, the coordinates of the pixel in the photographed image and the relative coordinates or shape in the other surface 12 are acquired, and these are sent to the image output unit 104 as the coordinates and shape data of the area of the proximity location 14.
Finally, in STEP 3, the image output unit 104 generates a pointer image or the like based on the coordinates and shape data of the area of the adjacent portion 14 and outputs the image to the flexible display 200. At the same time, at STEP4, the fluid pressure control unit 105 (a part of the fluid pressure control mechanism 38) outputs a control signal corresponding to the coordinates and shape data of the area of the proximity 14 to the fluid pressure control mechanism 38 such as an electric pump. As a result, the pressure of the fluid of the internal fluid 20 of the touch panel body V is changed, and the process ends.

The fluid pressure control mechanism 38 may use an electric pump to change the pressure of the fluid 20 in real time so that the hardness and cushioning property of the one surface 11 can be controlled in real time.
Alternatively, as shown in FIG. 18, a jet injection device 39 such as a hose that can discharge a water flow in an arbitrary direction inside the touch panel main body V may be used as the fluid pressure control mechanism 38. In this case, it is also possible to save energy by limiting the pressure of the fluid 20 in the vicinity of the proximity location 14 by injecting a water flow directly in the direction of the proximity location 14. A specific control method for directing the jet flow of the jet injection device 39 in the direction of the adjacent portion 14 may be a known servo mechanism such as a motor. The jet direction of the jet may be calculated using the coordinates of the area of the adjacent location 14.

[Ninth Embodiment]
Next, a ninth embodiment of the present invention will be described. The same reference numerals are given to portions having the same configurations as those of the above embodiments, and the description thereof will be omitted.
As shown in FIG. 19, the touch panel system of the present embodiment is provided with a first storage part 81 for storing an object 82 such as a personal computer on the bottom surface of the touch panel body V, and the object 82 is inserted and fixed therein. Yes. In this way, the object 82 can be covered with the touch panel of the present invention. As a secondary merit, when the object 82 is a self-supporting object, the stability of the self-supporting of the touch panel body V is increased by storing it in the storage part 81 inside the touch panel body V. Further, when a personal computer or home appliance that requires heat dissipation is selected as the object 82, the object 20 can be water-cooled by the fluid 20 by inserting and fixing the object in the storage unit 81. In the example of FIG. 19, the first storage unit 81 is provided on the bottom surface of the touch panel main body V, but it is not necessarily provided on the bottom surface. For example, the touch panel body V can be easily fixed to the wall by providing the first storage 81 on the side surface of the touch panel body V and inserting and fixing wall projections or the like in the first storage 81.

[Tenth embodiment]
Next, a tenth embodiment of the present invention will be described, but the same reference numerals are given to portions having the same configurations as those of the above embodiments, and the description thereof will be omitted.
As shown in FIG. 20, the touch panel system of the present embodiment is a second storage for storing an object 82 such as a personal computer on the bottom surface of the cushion 30 attached to the side surface of the touch panel main body V of the fourth embodiment. A portion 83 is provided, and the object 82 is inserted and fixed therein. In this way, the object 82 can be covered with the touch panel of the present invention. As a secondary merit, when the object 82 is a self-supporting object, the stability of the self-supporting of the touch panel body V is increased by storing the object 82 in the storage part 81 inside the cushion 30.
A pocket 84 made of a transparent and flexible material for inserting and fixing the touch panel body V, the sheet 17, and the flexible display 200 together may be provided in the cushion 30. In this way, the touch panel body V, the sheet 17 or the flexible display 200 can be easily attached and detached, and a flexible display having a free screen size can be used depending on the user's situation. Further, the sheet 17 can be easily exchanged with and without the protrusions, so that the user can adjust the stroke distance to a suitable one according to the situation. Further, as a secondary merit, the user's hand UH is not directly touched as shown in FIG. 20 in which the flexible display 200 is inserted into the pocket 84. This leads to protection of the surface of the flexible display 200. Further, since the protection performance can be increased by increasing the thickness of the material of the pocket 84, the user can not only press the touch panel with his hand but can also strike with a fist. For this reason, for example, it can be applied to a new type of sandback that can display a boxing player's video on a flexible display and interactively strike it with a user's fist or foot.

  The present invention relates to a touch panel system for a flexible display that has a simple device configuration, is not easily affected by ambient temperature, can be deformed, and can be directly touched by a user, and is industrially applicable. Have

V Touch panel body
UH User's Hand
d: Distance between one surface and the other (when not in contact)
d2: Touch detectable distance
d3: Height of convex part on the back (flexible display)
1 Touch panel system
11 One side (transparent)
12 The other side (transparent)
13 Inlet
14 Proximity
15 Exoskeleton (transparent)
17 seats
18 Protrusion
19 Recess
20 fluid
21 Fluid (low transparency)
22 Fluid (High transparency)
30 cushion
32 Internal airtight space (air filling)
33 Transparent and flexible material (cushion component material)
34 Camera fixing pocket (transparent)
35 Heavy stone (for stabilization of the center of gravity when standing independently)
38 Fluid pressure control mechanism (electric pump)
39 Fluid pressure control mechanism (jet injection device)
40 Table legs
41 ground
50 cameras
51 Camera image (image analysis image)
52 Camera image (viewed from the other side)
60 Locations close to noise
80 Protrusion (metal)
81 Storage unit (for storing object)
82 objects
83 Storage (for storing objects)
84 pockets (transparent and flexible)
100 Computer (Image Analysis Department)
101 Image capture unit
102 RGB value storage for fluid color
103 Image RGB analysis section (contact location identification section)
104 Image output section
105 Fluid pressure controller
200 Flexible display
201 Pointer image
202 String image (Strong Push)
203 String image (Weak Push)
204 String image (No Push)
210 Rear parts (flexible display)

Claims (14)

One surface is made of a flexible material and the other surface is made of a material having visible light permeability, and contains a colored fluid in a space sandwiched between the one surface and the other surface. A bag-shaped touch panel main body,
An elastically deformable sheet;
A camera capable of photographing light of a wavelength in the visible light region and photographing the other surface;
An image analysis unit that analyzes RGB values of pixels of the image captured by the camera;
It is used together with a flexible display,
The back surface of the sheet is in close contact with the one surface, and the surface is in close contact with the back surface of the flexible display,
The camera receives the external force generated by the deformation of the flexible display, the one surface and the other surface come close to each other, and the camera changes the color of the other surface caused by the fluid moving from the proximity location. Shoot and
The image analysis unit calculates at least one of the coordinates of the proximity location on the other surface and the shape of the proximity location based on the RGB value analysis result of the pixel of the captured image, and the flexible display Touch panel system for flexible displays, characterized in that it is reflected in the video.
2. The touch panel system according to claim 1, wherein a thickness of the sheet is larger than a height of a convex portion on a back surface of the flexible display.
3. The touch panel system according to claim 1, wherein the one surface is formed of a material having visible light permeability, and the back surface of the sheet is colored in a single color.
The touch panel system according to claim 1, further comprising a plurality of protrusions on a back surface of the sheet.
4. The touch panel system according to claim 1, further comprising a plurality of protrusions facing from one of the one surface or the other surface toward the space. 5.
The touch panel system of claim 4 or 5 the length of the plurality of protrusions each are different.
The protrusions are made of metal, claim 4-6, characterized in that to improve the water cooling efficiency to transmit heat generated from the flexible display in said fluid through said sheet and said projections The touch panel system according to one item.
The touch panel system according to any one of claims 1 to 7, characterized in that said fluid is a liquid.
The image analysis unit calculates a proximity distance between the one surface and the other surface at the proximity location by comparing an RGB value of the fluid and an RGB value of a pixel of the captured image. The touch panel system according to any one of claims 1 to 8 .
The touch panel system according to any one of claims 1 to 9, characterized in that to change the color or transparency of the fluid.
The touch panel system according to any one of claims 1 to 10 , wherein the touch panel main body has a shape imitating a part of a human body.
The touch panel system according to any one of claims 1 to 11 , wherein the touch panel body includes a first storage section that is recessed toward the space.
A fluid pressure control mechanism for controlling the pressure acting on the touch panel body from the fluid;
The fluid pressure control mechanism changes the pressure based on at least one of the coordinates of the proximity location and the shape of the proximity location, according to any one of claims 1 to 12 . Touch panel system.
One surface is made of a flexible material and the other surface is made of a material having visible light permeability, and contains a colored fluid in a space sandwiched between the one surface and the other surface. A bag-shaped touch panel main body,
An elastically deformable sheet;
A camera capable of photographing light of a wavelength in the visible light region and photographing the other surface;
An image analysis unit that analyzes RGB values of pixels of the image captured by the camera;
It is used together with a flexible display,
The sheet has a surface that is in close contact with the one surface inside the touch panel body, and a plurality of protrusions facing the space on the back surface.
The one surface is in close contact with the back surface of the flexible display;
The camera receives the external force generated by the deformation of the flexible display, the one surface and the other surface come close to each other, and the camera changes the color of the other surface caused by the fluid moving from the proximity location. Shoot and
The image analysis unit calculates at least one of the coordinates of the proximity location on the other surface and the shape of the proximity location based on the RGB value analysis result of the pixel of the captured image, and the flexible display Touch panel system for flexible displays, characterized in that it is reflected in the video.

Images