JP3200386U - Touch display device - Google Patents

Abstract

Provided is a touch display device in which operation is diversified by plane touch control and pressure sensing touch control and the convenience of operation is improved. A touch display device includes a touch panel, a liquid crystal display, and a pressure sensing layer. One side of the liquid crystal display 12 and the bottom of the touch panel 11 are bonded to each other, the liquid crystal display 12 corresponds to the touch area 111 of the touch panel 11, and the pressure sensing layer 13 is installed on the other side of the liquid crystal display 12. [Selection] Figure 1

Description

  The present invention relates to a touch display device, and more particularly to a touch display device that achieves multi-operation and convenience of operation by providing effects of planar touch control and pressure-sensitive touch control.

Portable electronic products such as personal digital assistants (PDAs), mobile phones, touch control display devices for cars, and notebooks are widely used in various consumer electronic product markets. A touch panel is used as an interface for data exchange between users and electronic devices. There are many types of touch control techniques that are often seen, and examples include electrical resistance type, capacitor type, optical type touch control, and the like. The touch control position is determined by touch control of a finger or an electromagnetic pen, and a corresponding function is executed. Touch control technology has been developed not only by controlling and operating the functions of products, but also by application of character writing or game play.

The conventional touch-control type display can not respond appropriately if you wear gloves or water on your fingers, just determine the touch position, you can not measure the strength of the touch force, Can't open two-level or three-level menu at once. Furthermore, it is not possible to satisfy the increasing demand for human computer interaction. People need a simpler, more convenient and speedy human computer interaction experience. This has created many human computer interactions. Since pressure touch control, which is the current technology, can identify the pressure when the user touches, different operations are performed depending on the click and touch. As a core function, the “click and touch” operation returns to the “right click” module. This provides a powerful tool or experience for the user when processing documents, formatting, and playing games. By understanding the right-click of a mouse on a touch-controlled display, it changed people's operating habits and experiences, and made computer (PC) operation attractive.

However, at present, the touch control of the touch panel of the known touch control type display determines the size of the touch panel pressing based on detecting the size of the touch area.

WO2013 / 021835 WO2012 / 176748

The problem to be solved is that the touch area caused by different users or different fingers is different, so this type of indirect touch control pressure detection method creates inaccuracy of judgment and size error, and widely applied Can not do it. Therefore, the thing used for the touch control type display of a pressure sensor is an incomplete technology, and is also an obstacle of development of the conventional touch control technology.

  The present invention includes a touch panel, a liquid crystal display, and a pressure sensing layer. The one side of the liquid crystal display and the bottom of the touch panel are bonded to each other, the liquid crystal display corresponds to the touch area of the touch panel, and the pressure sensing layer is installed on the other side of the liquid crystal display. The most important feature.

The touch display device of the present invention has the following advantages.
1. Provide the effects of planar touch control and pressure sensitive touch control.
2. Achieve the effect of increasing the diversification of operations and the convenience of operations.

It is a decomposition | disassembly solid instruction | indication figure of 1st Example of this invention. It is an assembly solid instruction diagram of the first embodiment of the present invention. 1 is a block chart of a first embodiment of the present invention. It is a touch panel decomposition | disassembly solid instruction | indication figure of 1st Example of this invention. It is an assembly cross-section instruction | indication figure of 1st Example of this invention. In the first embodiment of the present invention, the user displays a flat touch in the touch area. FIG. 4 is a display diagram of pressure sensing touch control in which a user touches a touch area according to the first embodiment of the present invention. FIG. 6 is a display diagram 2 of pressure sensing touch control in which a user touches a touch area according to the first embodiment of the present invention. It is an assembly cross-section instruction | indication of the 2nd comparative example of this invention.

   In order to effectively improve the above-described problem, it is a main object of the present invention to provide a touch display device having planar touch control and pressure-sensitive touch control effects.

It is another object of the present invention to provide a touch display device having multiple operations and convenient operation effects.

To achieve the above object, the present invention provides a touch display device, which includes a touch panel, a liquid crystal display, and a pressure sensing layer. The touch panel includes a touch area and a peripheral area, and the touch area is provided at a central location of the touch panel. Located and the surrounding area surrounds the touch area. Further, the liquid crystal display is installed below the touch panel, the liquid crystal display corresponds to the touch area of the touch panel, and one side of the liquid crystal display is bonded to the bottom corresponding to the touch panel. The pressure sensing layer described above is installed on one side.
The touch display device of the present invention provides planar touch control and pressure-sensitive touch control effects, and further achieves the effect of increasing operability and convenience of operation.

The above-mentioned object of the present invention and its structural and functional characteristics will be described with reference to preferred embodiments together with diagrams.

The present invention is a touch display device, and FIGS. 1, 2, and 3 are an exploded view, an assembly diagram, and a block chart of the first embodiment of the present invention. A preferred embodiment of the touch display device 1 will be described as applied to a smartphone, but is not limited thereto. When specifically implemented, the touch display device 1 may be applied to a personal digital assistant (PDA), a mobile phone, a car touch screen, a notebook computer, or a tablet terminal. Good. Further, the touch display device 1 includes a touch panel 11, a liquid crystal display 12 (Liquid Crystal Display Module, LCM), and a pressure sensing layer 13. Although an OGS (One Glass Solution) touch panel 11 will be described as an example of the touch panel 11, it is not limited thereto. When actually implementing the present invention, the touch panel 11 may select a G1F (Glass-Film) touch panel 11, a GFF (Glass-Film-Film) touch panel 11, or another structure touch panel 11.

The touch panel 11 includes a touch area 111, a peripheral area 112, a first sensitive electrode 113, a second sensitive electrode 114, a transparent substrate 115, a wiring layer 116, and a shielding layer 117 (FIG. 4). The touch area 111 (or referred to as a visible area) is located at the center of the touch panel 11, and the touch area 111 is used by a user or a touch control object (for example, a touch control pen or a finger) to perform a touch operation. . The peripheral area 112 (or an invisible area) is installed outside the touch area 111, and the peripheral area 112 surrounds the touch area 111 in a ring shape. Furthermore, although the implementation of the material of the transparent substrate 115 will be described using glass, it is not limited thereto, but is not limited to polyethylene terephthalate (PET), polycarbonate (Poly Carbonate, PC), polyethylene (polyethylene, PE), polyvinyl chloride. One of (Poly Vinyl Chloride (PVC), Polypropylene (Poly Propylene, PP), Polystyrene (Poly Styrene, PS), Polymethylmethacrylate (Polymethylmethacrylate, PMMA), Cycloolefin Copolymer (COC) You may choose.

Further, the shielding layer 117 is formed on one side of the transparent substrate 115 in the peripheral area 112 and used for shielding and concealing. The shielding layer 117 of this embodiment is opaque (translucent) and employs printing or application of an insulating material as an example. The material of the first and second sensitive electrodes 113 and 114 is indium tin oxide (ITO) or antimony-containing tin oxide (ATO). The first and second sensitive electrodes 113 and 114 are installed corresponding to one side of the transparent substrate 115 of the touch area 111, and as shown in FIG. Correspondingly, the touch area 111 is formed on one side of the transparent substrate 115.
Further, when the present invention is actually carried out, the first and second sensitive electrodes 113 and 114 are installed so as to cross one side of the transparent substrate 115 of the touch area 111, and the first and second sensitive electrodes are arranged. An insulating layer is provided between 113 and 114, and the first sensitive electrode 113 and the second sensitive electrode 114 are insulated from each other by the insulating layer.

In addition, the wiring layer 116 is disposed below the shielding layer 117, and the wiring layer 116 is connected to the controller 2 for supporting single-point or multi-point touch control corresponding to the first and second sensitive electrodes 113 and 114. Connect electrically. In short, the touch panel 11 is electrically connected to the controller 2, and the controller 2 determines the touch position based on the reception of the sensing signal transmitted by the first and second sensitive electrodes 113 and 114. When a user's finger touches the touch area 111 of the touch panel 11, the first and second sensitive electrodes 113 and 114 receive a sensing signal generated corresponding to the above-described touch position by the controller 2, and touch based on the sensing signal. Determine the position.

The aforementioned liquid crystal display 12 is installed below the touch panel 11, and the liquid crystal display 12 corresponds to the touch area 111, and one side of the liquid crystal display 12 is bonded to the bottom corresponding to the touch panel 11. The
Further, the first and second sensitive electrodes 113 and 114 are bonded to the liquid crystal display 12 positioned corresponding to the lower side by an optical glue line 15.
Further, the liquid crystal display 12 includes a frame body 121, a display panel 122, and a backlight module 123. This embodiment of the frame body 121 is described as a metal frame (for example, an aluminum frame), but is not limited thereto. A plastic frame may be selected. The display panel 122 and the backlight module 123 are installed in the frame body 121, and the display panel 122 includes a display surface 1222 and a back surface 1223. The display surface 1222 of the display panel 122 is a touch area 111 of the touch panel 11. The backlight module 123 is installed below the back surface 1223 of the display panel 122. The display panel 122 of this embodiment includes an upper, a lower polarizing plate, an upper substrate, and a lower substrate. Since the connection mechanism and the known display panel 122 are the same, they will not be described in detail here.

As shown in FIGS. 1, 3, and 5, the pressure sensing layer 13 is configured by selecting a transparent or non-transparent material, and the pressure sensing layer 13 is an electric resistance type pressure sensing layer 13 or a capacitor type pressure. The sensing layer 13 may be selected. The pressure sensing layer 13 is installed on the other side of the liquid crystal display 12, the pressure sensing layer 13 is formed outside the frame body 121 corresponding to the backlight module 123, and the pressure sensing layer 13 is formed as described above. Corresponding to the touch area 111, the pressure sensing layer 13 is used to sense the user's finger (or touch control object) and act according to the degree of pressure applied to the touch area 111, and at the same time the pressure sensing layer 13 generates a pressure-sensitive signal elastically according to the strength of the applied pressure. The pressure sensing layer 13 is electrically connected to a pressure controller 3 for supporting single point or multipoint pressure identification, and the pressure controller 3 and the pressure sensing layer 13 are joined together outside the frame body 121 corresponding to the backlight module 123. The pressure controller 3 determines the pressure intensity of the user's finger based on the reception of the pressure-sensitive signal.

The pressure sensor that senses the user's finger (or touch control object) according to the present invention and works according to the pressure intensity of the touch area 111 has a structure in which the pressure sensor is installed and coupled to the touch display device 1. A flat touch control (see FIG. 6) and pressure sensing touch control (see FIGS. 7 and 8) functions are provided on 111. When the pressure-sensitive touch control function is applied to the diagram, the change in the line width is expressed by the applied pressure intensity on the touch area 111, and the same effect as a pen on a conventional paper is achieved. Or, when applied to different windows (for example, games or web windows), the original touch control gestures, for example, the control of the size of the window screen 6 (see FIGS. 7 and 8) or the control of the size of sound. Replace. In addition, by installing the pressure sensor below the liquid crystal display 12, the problem that the touch area 111 of the touch display device 1 cannot be installed with a narrow frame or no frame is effectively solved.

Further, the touch display device 1 further includes an outer frame 4 that is used to fix and support the display panel 122 and the touch panel 11. Further, the outer frame 4 includes a recess 41, and the recess 41 accommodates the liquid crystal display 12 and the pressure sensing layer 13, and the pressure sensing layer 13 is located between the outer frame 4 and the liquid crystal display 12. In addition, the outer frame 4 is attached to the touch panel 11 in correspondence with the frame glue line 42 to cover the liquid crystal display 12 and the pressure sensing layer 13 in the outer frame 4.

According to the configuration of the touch display device 1 of the present invention, the effects of planar touch control and pressure sensing touch control are provided, thereby achieving the effect of increasing the diversification of the operation and the convenience of the operation.

FIG. 9 shows an assembly sectional view of the second embodiment of the present invention, and the appearance is shown in FIGS. Since the structure and connection relationship of these preferred embodiments and the effects thereof are approximately the same as those of the touch display device 1 of the first embodiment described above, they will not be described here.
In this embodiment, the pressure sensing layer 13 of the first embodiment described above is changed from a structure that is installed outside the frame body 121 to a structure that adheres to the outside of the frame body 121 by using a single film repeatedly or disposable. (That is, the pressure sensing layer of this embodiment is located below the frame body). Further, the pressure sensing layer 13 of this embodiment may be changed to a single film pressure sensing film. The pressure sensing layer 13 is provided with a glue line 14, and the glue line 14 is described as an optical glue (OCA) in this embodiment, but is not limited thereto. The pressure controller 3 is installed on a pressure sensing film (that is, the pressure sensing layer 13), and the pressure sensing layer 13 and the pressure controller 3 are firmly attached to the outside of the frame body 121 corresponding to the backlight module 123 by the glue line 14. to paste together.

The structure of a single film pressure sensing film with a repetitive use or disposable adhesive of the present invention is applied on a general touch display device, and a vendor (or user) attaches the pressure sensing film of the present invention. The general touch display device 1 is easy to assemble, the effect of pressure touch control is increased, and the effect of increasing the diversification of operation and the convenience of operation is achieved.

DESCRIPTION OF SYMBOLS 1 Touch display apparatus 11 Touch panel 111 Touch area 112 Peripheral area 113 1st sensitive electrode 114 2nd sensitive electrode 115 Transparent substrate 116 Wiring layer 117 Shielding layer 12 Liquid crystal display 121 Frame body 122 Display panel 1222 Display surface 1223 Back surface 123 Backlight module 13 Pressure sensing layer 14 Glue line 15 Optical glue line 2 Controller 3 Pressure controller 4 Outer frame 41 Recess 42 Frame glue line 5 User 6 Window screen

Claims (10)

In the touch display device,
A touch panel, a liquid crystal display, and a pressure sensing layer;
The touch panel includes a touch area and a peripheral area, the touch area is located at a central location of the touch panel, the peripheral area surrounds the touch area,
The liquid crystal display is installed below the touch panel corresponding to the touch area, and one side of the liquid crystal display is bonded to the bottom corresponding to the touch panel,
The touch display device, wherein the pressure sensing layer is disposed on another side of the liquid crystal display.   The touch display device further includes an outer frame, the outer frame is provided with a recess, and the liquid crystal display and the pressure sensing layer are accommodated in the recess, and the pressure sensing layer is disposed between the outer frame and the liquid crystal display. The touch display device according to claim 1, wherein the outer frame is attached to a corresponding touch panel by a frame glue line. The liquid crystal display comprises a frame body, a display panel and a backlight module,
The display panel comprises a display surface and a back surface,
The backlight module is installed below the back surface of the display panel, the display surface of the display panel corresponds to the touch area of the touch panel, and the display panel and the backlight module are housed in the frame body. The touch display device according to claim 1.   The touch display device according to claim 3, wherein the pressure sensing layer is formed on an outer side of the frame body corresponding to the backlight module.   The pressure sensing layer is made of a pressure sensing film, and a glue line made of an adhesive is provided on the pressure sensing layer so as to be fitted to the outside of the frame body corresponding to the backlight module. Item 4. The touch display device according to Item 3. The touch panel includes a first sensitive electrode, a second sensitive electrode, a transparent substrate, a wiring layer and a shielding layer electrically connected to the first and second sensitive electrodes,
The shielding layer is formed on one side of the transparent substrate in the peripheral area of the touch panel,
The first and second sensitive electrodes are installed corresponding to one side of the transparent substrate of the touch area of the touch panel, and the first and second sensitive electrodes are positioned correspondingly downward with optical glue lines. The touch display device according to claim 1, wherein the wiring layer is disposed below the shielding layer.   The touch panel includes a first sensitive electrode, a second sensitive electrode, a transparent substrate, a wiring layer and a shielding layer electrically connected to the first and second sensitive electrodes, and the shielding layer is on one side of the transparent substrate in a peripheral area of the touch panel. The first and second sensitive electrodes are arranged on one side of the transparent substrate in the touch area of the touch panel, the first and second sensitive electrodes are insulated from each other, and the first and second sensitive electrodes are arranged side by side. The touch display device according to claim 1, wherein the liquid crystal display is positioned so as to correspond to the lower side of the optical glue line, and the wiring layer is disposed below the shielding layer.   The touch display device according to claim 6, wherein the touch panel connects a controller, and the controller connects the first and second sensitive electrodes and the wiring layer.   5. The touch according to claim 4, wherein the pressure sensing layer electrically connects a pressure controller, and the pressure controller is formed on the outside of the frame body corresponding to the backlight module together with the pressure sensing layer. Display device.   The pressure sensing layer is connected to a pressure controller, the pressure controller is installed on the pressure sensing layer, and the pressure sensing layer and the pressure controller are outside the frame body corresponding to the backlight module at the glue line. The touch display device according to claim 5, wherein the touch display device is firmly bonded.

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