TWM321553U - Touch control panel with dual sensing interfaces - Google Patents

Description

M321553 VIII. New Description: [New Technology Area] This is a touch panel with dual sensing interfaces, especially a touch sensing interface with capacitive and resistive touch panels, and touch sensing signals. The device that receives the processing. / [Prior Art]: In recent years, the production technology related to touch sensing devices has advanced by leaps and bounds, and the quality of its products and the quality of its components have been continuously improved, and the price has been greatly reduced, thus urging various touch sensing devices. It has been widely used in various electronic products. Generally speaking, the touch sensing device can be divided into three types: capacitive touch panel, resistive touch panel and electromagnetic touch panel. The boards have their own features, advantages and disadvantages, so the current development application layer is also different. For example, resistive touch panels are often deployed in personal digital assistants (PDAs)' electronic dictionary, mobile phones, MP3 digital players or It is used on the screens of small electronic products such as satellite navigation screens (Gps), while capacitive touch panels are mostly used as notebooks for notebooks, virtual touch buttons, etc. - In-step, the known capacitive touchpad structure includes -# sensing layer (χ trace) and -y axis yee (y traee) 'χ, y minus touch insulation to set the touchpad Inside the body' and ground the x, y-axis sensing layers and connect them to a control circuit. When the finger or conductor touches or slides over the surface of the touchpad, it touches the finger or conductor of the user. The instantaneous-capacitance effect, so the control circuit can be determined by the change of the electric quantity of the finger or the guide _ age; since the capacitive test board can be input, has the input system, and its input operation Said __, will not let the panel have

Ref. 7042PUA 5 M321553 suffers from the defects of repeated stress and deformation, and the touch panel has simple structure, few components, high product yield, and is suitable for mass production to reduce costs. In addition, the touch panel is also suitable. With the performance of multi-point sensing, this means that the touch sensing device has the performance of multiplex control, so it can be used in high-order control operations, for example, in the manipulation of video games, the virtual subject can be manipulated. More flexible or more diverse performance performance; however, there are many missing features of this capacitive touch panel, such as: capacitive touch panels are highly susceptible to EMI interference and noise The touch panel generates misinterpretation of the input signal and causes malfunction; the capacitive touch panel can be input with a finger, although it is very convenient, but the accuracy of the finger input method is not high, and it is easy to cause misoperation, causing troubles in use, especially In terms of the input of text recognition, such as Chinese characters, which have many strokes or complex shapes, the recognition rate is extremely low, and it is still difficult. To the extent that it is practical, although the aforementioned problems can be overcome by using special induction pens, it is still limited for use on smaller area panels or for higher precision point inputs. The sensor pen often makes the user feel very inconvenient in many occasions, such as when not carrying or missing the pen. As for the structure of the resistive touch panel, the two-plane transparent conductive film is to be disposed in a direction of a separate-fixed gap, and the conductive film on the upper surface is disposed on the surface of the flexible transparent film. The conductive film underneath is disposed on the surface of the transparent glass substrate having a hard material, and the two conductive films are sealed in a plate body; the conductive conductive plate and the plate body of the resistive touch plate are transparent materials. Therefore, it is suitable for the display screen of the electronic product, so that the user can touch the desired position of the panel through the indication on the screen screen, and the input function is performed, and the pen tip and the like which are generally available can be used. Has

Ref 7042PUA 6 M321553 is accurate _ age set _, so it can be used to input a higher precision point of the face thief, especially suitable for the level of pen 或 or _ _ 之 帛 ;; The input operation mode of the panel by the touch panel causes the conductive body inside the board to be damaged by the repeated stress and strain, so the service life is limited, and when it is used for input by using a finger or a relatively thick tool. Frequently, it is not allowed to • Enter the results, so there are many restrictions on the use of input tools. • Wei Gang knows that the know-how capacitors and the electric shouting boards have their own features and advantages and disadvantages. Therefore, the touchpad that integrates the functions and advantages of the two touchpads is All right. [New Content] The main purpose of this creation is to provide a composite touch panel, which integrates a capacitive touch panel and a resistive touch panel into a single board, and combines the performance and advantages of the above two touch panels. According to the present invention, the composite touch panel includes a first touch panel provided with a capacitive sensing interface, and a second touch panel provided with a resistive sensing interface, such that the first touch panel and the second touch panel The touch panels are stacked and combined into a board, and the touch sensing signals of the two touch panels are respectively transmitted to a signal processing unit; wherein the first touch panel is a capacitive touch panel, and the second touch The control board is a resistive touch panel, and preferably the first touch panel is overlapped on the second touch panel. The first touch panel has a panel, a first axis sensing layer, a second axis sensing, an insulating layer disposed between the first and second axis sensing layers, a bottom plate, and a first signal output cable, each of each The slab layers are glued to each other to form a transparent plate body; and the first axis sensing layer includes a first axis trace (the second axis sensing layer includes a second axis trace, and the first axis is made

7 Ref 7042PUA M321553 The stitch and the second axis trace are brittlely arranged, and the first and second sensing layers are respectively provided with contacts and electrically connected to the silver guide disposed at the edge of the panel, and The first signal output cable is connected to enable the touch sensing signals of the sensing layers to be transmitted to the signal processing unit via the first signal output cable. Preferably, the first axis sensing layer and the second axis sensing layer are made using an indium tin oxide (ITQ) flip film side having good electrical conductivity; and the upper surface of the panel is provided with a hard coat. The second touch panel is mainly composed of a top plate, an upper conductive film, a plurality of spacer balls, a lower conductive film, a substrate, and a second signal output line; and the upper conductive film is provided with an electronic node. And disposed on the bottom surface of the top plate, the lower conductive film also has an electronic defect and is disposed on the upper surface of the substrate, and a plurality of spaced balls are disposed between the upper and lower conductive films to separate each other. a gap is disposed oppositely, and an insulating glue layer is disposed on the periphery of the two conductive film arrangement regions to be glued to each other to form a transparent plate body, and the sensing signals on the conductive films are transmitted through the edge of the panel. The silver channel is sent to the first signal and then transmitted to the signal processing unit. Preferably, the bottom plate of the first touch panel can also be used as the top plate of the second touch panel, so that the upper electrode of the second touch panel is directly disposed on the lower surface of the bottom plate, thereby omitting a layer; And the upper conductive film and the lower conductive film are formed by etching using an indium tin oxide (ITO) transparent film having good electrical conductivity. The present invention also provides a touch panel with a dual sensing interface, which has two touch sensing interfaces, a capacitive touch panel and a resistive touch panel, which can generate touch sensing signals individually or both. Selecting one of the processing via automatic circuit selection or manual selection

Ref 7042PUA 8 M321553 Touch sensing signal, which enables a touch sensing device to combine the performance and advantages of both capacitive and resistive touch panels. According to the present invention, the touch panel of the dual sensing interface comprises a capacitive touch panel unit, a resistive touch panel unit and a signal processing unit, and the capacitive touch panel unit and the resistive touch panel unit are stacked Combining into a board body, and transmitting the touch sense signal of the two touch panel units to the signal processing unit, and the signal processing unit has at least one signal discriminating/loop to identify the capacitive touch panel unit And/or the type of touch sensing signal transmitted by the resistive touch panel unit automatically selects an appropriate signal processing mode, thereby performing signal processing steps; and the signal discrimination circuit can also be operated by a manually operated signal switching switch Instead, the user selects the signal switching mode to select the signal processing mode to receive the desired touch sensing signal. Preferably, when the signal processing mode is selected to receive the touch sensing signal of the capacitive touch panel unit, the conductive layer of the resistive touch panel unit is set to jump as the electrical touch panel unit. Grounding, and thus avoiding electromagnetic interference (Electro Magnetic • Interference, EMI for short) 〇 This creation is not limited to the above-mentioned forms. Obviously, for those skilled in the art, after referring to the above description, there can be more Many improvements and changes are made, and any modifications or changes to this creation made under the same creative spirit should still be included in the scope of protection of this creative intent and be given to Chen Ming. The following description will continue with a specific embodiment to further clarify the innovative features of the present creation. [Embodiment] As shown in the first and second figures, a preferred embodiment of the present invention includes a capacitive touch

9 Ref 7042PUA M321553 board unit 1, a resistive touch panel unit 2 and a signal processing unit 3; wherein the electric valley type touch panel unit 1 has a panel u, an x-axis sensing layer 12, and a γ-axis sensing layer 13 An insulating film 14 disposed on the X-axis and Y-axis sensing layers, the bottom plate 15 and the first signal output cable 16, and the panel u is a flexible high transmittance insulating film, for example, a poly vinegar a (PET) film material having a hard coat layer (hafd-coat) on the upper surface of the panel n, for example, coated with a high-hardness ultraviolet curable coating, thereby enhancing the scratch resistance of the work surface and Anti-staining performance; X-axis sensing layer 12 and γ-axis sensing layer 13 can use a transparent film with good electrical conductivity, such as indium tin oxide (ITO) film, in the x-axis and γ-axis sensing layer The insulating layer 14 is also selected from a light transmissive insulating material such as ink or a high transmittance polyester film; the first signal output cable 16 can be selected from a flexible printed circuit board (FPC), and Providing a plurality of guides on the line, and the foregoing layers of material are mutually connected to each other The X-axis sensing layer 12 and the x-axis sensing layer π are respectively provided with contacts 121 and 131, and are connected through the silver guiding path 161 disposed at the edge of the panel and the bottom plate, and the like. The sensing signal on the conductive film is transmitted to the first signal output cable 16 and then transmitted to the signal processing unit 3 of the subsequent performance. The resistive touch panel unit 2 is mainly composed of a top plate 21, an upper conductive film 22, a lower conductive film 23, a substrate 24, and a second signal output cable 26. In this embodiment, The top plate 21 is shared with the bottom plate 15 of the capacitive touch panel unit, and in the exceptional case, the top plate 21 and the bottom plate 15 can be independently selected and do not share the same plate (as shown in the third figure). And when the capacitive touch panel unit 1 and the resistive touch panel unit 2 are stacked and combined into one plate body, the top plate 21 and the bottom plate 15 are glued together; the substrate 24 is transparent with a hard material. Sheet, such as transparent glass

10 Ref. 7042PUA M321553 glass plate, acrylic plate, polyester plate; the second signal output cable 26 can be selected with a flexible printed circuit board, and a plurality of guiding paths are arranged on the wire; and the upper conductive film 22 is a An indium tin oxide transparent film provided with an electronic node is disposed on a bottom surface of the top plate 21, and the lower conductive film 23 is also an indium tin oxide transparent film provided with an electronic node, and is disposed on the substrate 24. In addition, a plurality of spacers - balls 242 are interposed between the upper and lower conductive films 22, 23 so as to be separated from each other by a certain gap, and disposed at the periphery of the arrangement area of the two conductive films 22, 23 An insulating glue layer is formed to be glued to each other to form a transparent plate. The sensing signals on the conductive films are collected and transmitted to the second signal output cable 26 through the silver guides 244 disposed at the edge of the panel. The signal processing unit 3 is transmitted to the subsequent signal processing unit 3; as described in the foregoing structure, since the thickness of the capacitive touch panel unit 1 is very thin, it is not attached to the resistive type test unit 2 Touchpad unit 2 The sensitivity of the pressure sensor, the stress is alleviated but the impact of indium tin oxide thin film material over the conductive film suffered, to avoid sharp edges strain damage, to extend the life. The ship reduction unit 3 - the 峨 回路 loop, which can receive the type of touch sensing signal transmitted by the capacitive touch panel unit 1 and/or the resistive touch panel unit 2 - automatically selects an appropriate signal Processing mode, according to which the signal processing step is performed; for example, when the user performs an input operation on the created composite touch panel with a finger, the finger touches the X-axis sensing layer 12 of the capacitive touch panel unit 1 and The γ-axis sensing layer 13 creates a capacitive sensing signal, and the resistive touch panel unit 2 does not generate any signal because the finger does not apply a compressive stress to the surface; as a result, when the capacitive touches the unit When the capacitive sensing signal is transmitted to the signal processing unit 3 through the first signal output cable 16, the subtraction circuit of the signal processing unit 3 will be selected according to the selection (4) volume signal signal =

Ref 7042PUA 11 M321553 mode operation 'pick down the light, the Wei Wei material element 3 only reads the branch (four) electric valley type touch shirt shirt i _ view number, and the resistance section accepts the residual touch _ the induction signal π, In the _ capacitor money signal processing mode processing unit 3 will make the resistance of the resistor handle control unit 2 above the conductive 臈 22 electric film 23 jumps to the ground layer of her unit ^ minus county U Cai axis sense library I 13 To prevent static electricity or smuggling damage, Linben's creative touchpad is installed before the display is turned on (4), which can avoid the money _ due to the photoelectric annihilation of the display screen (_) reverse gamma' solution caused by the static electricity on the panel Disturbance phenomenon to maintain the normal operation of the capacitive touch panel unit. For another example, when the user performs an input operation on the creative composite touch panel with a pen tip, the nib touches the working area of the panel 11, because the capacitive touch panel unit i at the top is very thin and has a reduced impact _ The scaled _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ When the membrane Μ and 23 are electrically connected, the creation-induction is reduced, and because the pen tip moves or flips over the surface of the board, it does not trigger a capacitance sensing signal, so the capacitive relay unit does not generate any position; As a result, when the sensing signal of the resistive touch panel unit 2 is transmitted to the signal processing unit 3 through the second signal output cable %, the signal loop of the pro-processing unit 3 is automatically determined according to the selection and the resistor is selected. In the operation mode, the signal processing unit 3 only accepts and processes the sensing signal of the resistive touch panel unit 2, and prevents the sensing from the capacitive touch panel unit i from being accepted. Signal. For another example, when the same input operation behavior of the user generates two kinds of sensing signals

Ref 7042PUA 12 M321553, for example, using an input tool of a pen-shaped conductor, the conductor can cause the capacitive touch panel unit to generate an electric valley sensing signal, and the touch pressure of the nib also generates an inductive signal on the resistive touch panel unit 2 As a result, when the two kinds of sensing signals are simultaneously transmitted to the signal processing unit 3, the automatic determination principle of the signal determining circuit of the signal processing unit 3 will be: if a continuous touch sensing operation, the continuous selection will be automatically selected. The principle of the signal processing of the signal principle is that the interrupt signal processing mode is not interrupted or changed. For example, in a non-continuous or new touch sensing operation, a pre-selection will be automatically selected. The priority signal processing mode is set to operate. For example, the preset is based on the capacitive sensing signal. When a mode of operation is selected, the signal processing operation is as described in the above paragraphs. In some special requirements, the signal discriminating circuit of the signal processing unit 3 can also be replaced by a manually operated signal switching switch, so that the user can operate the signal switching switch to determine the desired signal processing mode. When the signal switching switch selects the electric valley sensing signal processing mode, the signal processing unit 3 only accepts and handles the sensing signal of the capacitive touch panel unit 1 and blocks the resistance type from being accepted. The sensing signal of the touch panel 'unit 2; similarly, when the signal switching switch selects the resistive sensing signal processing mode, the signal processing unit 3 only accepts and processes the sensing signal of the resistive touch panel unit 2 And block the inductive signal from the capacitive touch panel unit. [Simple description of the drawing] The first figure is a side view structural view of the creation; the second figure is a schematic diagram of the sensing layer of the capacitive touch panel unit of the present invention;

13 Ref. 7042PUA M321553 The third figure is a separate diagram of the power board of the _. The fourth picture is the side of the embodiment. And [Key component symbol description] Capacitive touch panel unit 1 X-axis sensing layer 12 Contact 12 Bu 131 Base plate 15 Silver guide 161 Top plate 21 Lower conductive film 23 Space ball 242 Second signal output cable 26 Panel 11 Y Axis sensing layer 13 Insulation layer 14 First signal output 16 line 16 Resistive touch panel unit 2 Upper conductive film 22 Substrate 24 Silver guide 244 Signal processing unit 3

Claims (1)

M321553 IX. Patent application scope: 1. A touch panel with dual sensing interface, comprising a first touch panel with a capacitive sensing interface and a second touch panel with a resistive sensing interface, so that the first A touch panel and a second touch panel are stacked and combined into a board body; the first touch panel has: a panel, which is a flexible and high transmittance insulating film; and the first axis sensing layer has good electrical conductivity a transparent film having a first axis trace and having contacts at the axis trace; an insulating layer being a light transmissive insulating layer; and a second axis sensing layer having good electrical conductivity a transparent film comprising a second axis trace and having a contact at the axis trace; a bottom plate being a flexible high transmittance insulating film; a first signal output cable disposed on the line There are a plurality of guiding paths; the foregoing layers are glued together with each other to the flip-flop body, and the first-axis and the second axis trace are arranged in a matrix, and the first-axis sensing layer and the first The contacts of the two-axis sensing layer are electrically connected to the panel and the bottom plate respectively The edge of the silver guide, and connected to the first - 遽 output Wei ' so that the sensing signal can be transmitted to the subsequent signal processing unit via the first signal output cable; the second touch panel has: a top plate for a scratch Insulating film with high transmittance; - Upper conductive film with electrons in the field and transparent film with Shaanxi conductive; Ref 7042PUA 15 M321553 咏* A lower conductive film, which is a transparent film with electronic nodes and good electrical conductivity a substrate is a light-transmissive insulating plate; and a second signal output cable is disposed on the wire; the upper conductive film is disposed on a bottom surface of the top plate, The lower conductive film is disposed on the upper surface of the substrate, and a plurality of spacer balls are disposed between the upper and lower conductive films to be separated from each other to form a gap and disposed opposite to each other, and in the second conductive film configuration region The periphery of the periphery is provided with an insulating glue layer and can be glued to each other to form a transparent plate body, and the sensing signals on the conductive films are collected through the silver guide path disposed at the edge of the panel. A second signal output to the cable then transmitted to the signal processing unit. 2. The touch panel of the dual sensing interface according to claim 1, wherein the second touch panel is laminated under the first touch panel to be combined into a board. 3. The touch panel of the dual sensing interface according to claim 1, wherein the bottom plate of the first touch panel and the top panel of the second touch panel are shared by the same board. 4. The touch panel of the dual sensing interface of claim 1, wherein the upper surface of the panel is coated with a hard coat. The touch panel of the dual sensing interface includes a capacitive touch panel unit, a resistive touch panel early element, and a signal processing early element. The capacitive touch panel unit and the resistive touch panel unit are stacked. And combining the touch sensing signals of the two touch panel units to the signal processing unit and the signal processing unit has at least one signal discriminating circuit for discriminating the capacitive touch panel unit and/or Or the resistive touch panel single Ref. 7042PUA 16 JM321553 /7 自动 automatically selects the appropriate signal processing mode for the type of touch sensing signal transmitted to perform the signal processing step. The touch panel of the dual sensing interface comprises a capacitive touch panel unit, a resistive touch panel unit and a signal processing unit, the capacitive touch panel unit and the electrically limited touch panel unit The splicing is combined into a board body, and the touch sensing signals of the two touch panel units are transmitted to the signal processing unit, and the signal processing unit has at least one manual and operation signal switching switch for the user to operate the signal. The switch is selected to select the signal processing mode to receive the desired touch sensing signal. 7. The touch panel of the dual sensing interface according to claim 5 or 6, wherein the signal processing mode is selected to receive the touch sensing signal of the capacitive touch panel unit when the signal processing mode is selected. The touch panel unit is set to jump as the grounding of the capacitive touch panel unit. 17 Ref 7〇42PUA