TWM317050U - Capacitive touch sensing device - Google Patents

Description

M317050 VIII, new description: [New technology field] This creation department _ kind of capacitive touch contact device, especially _ can be configured in the small electronic products of the lining face, and is _ electric domain A touch sensing device for inputting position recognition should be performed. [Prior technology] ... In recent years, the technology of the related technology has been reduced, and the quality of the products and the quality of the components have been continuously improved, and the price has been greatly reduced. The device has been widely used in various electronic products, such as the application as the notebook computer's job board, the capacitive touch of the ship's surface button is configured in the personal digital assistant (PDA), electronic dictionary, mobile phone, digital display ^, satellite navigation glory (GPS) and other small electronic products wire ± make resistance touch panel. The conventional capacitive touch panel structure includes a 感应-axis sensing layer and a y-axis sensing layer, so that the x, y-axis sensing layer is insulated from the touch panel body, and the x and y axes are sensed. The layer is divided into positions and connected to __, the operation _ is touched by the hand-money conductor of the time; the moment of the contact produces a capacitance effect, so the position of the finger or the guide body can be broken by the change of the capacitance value; The touchpad can be input with a finger, and has the convenience of input operation, and the reader can't read it as a face-to-face, and the 14-faced face accepts stress and deformation, resulting in damage, and the touchpad is made into a fresh structure. With fewer components, product yield gates and palatable use of Dali production to reduce costs; however, this capacitive touch panel uses copper II as a touch reduction, so it is limited by the material, even if the shop is thinned, there is no way to become Turn over, so the touchpad can not be placed in front of the display screen

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Ref. 7037PUA 5 M317050 uses 'as an interactive wheel-in tool, so this view-view trackpad is generally used, for example, for mouse pads or for some use as a virtual control button. As for the structure of the resistive touch panel, the structure mainly includes two planar conductive films to be separated from each other, and the opposite direction is generally disposed on the upper surface of the conductive film on the surface of the flexible transparent film. The conductive compensation is disposed on the surface of the transparent glass substrate having a hard material, and a plurality of bump-like spacers are provided between the opposite sides of the opposite arrangement, and a space is left in the β-region of the conductive film, and Applying a glue to the peripheral portion of the ring in the region to seal the adhesive together, and the upper and lower resistive films of the opposite arrangement are respectively provided on the upper side, the side or the left side, and the left side. Electric 峨 峨 scale, used to test the resistance film to continue to detect the newsletter processing circuit; this resistive touchpad upper and lower body and conductive 臈 are dependent on, so it is suitable for configuration in electronic products The display allows users to tap the desired position on the screen by tapping the instructions on the screen to make it possible for the winner to lose money, and the nibs that are available to them are already available.

The precise operation of the pressure is performed, so that a finer input can be performed. However, the above-mentioned resistance picks up the input operation mode of the _pressure panel, which causes the conductive film inside the board to withstand the repeated stress and become a fortune. The life of the system is limited, and when the money is used to input the finger with her finger or the end of the big one, the reader is sure to lose the result, so there are many restrictions on the input tools used. On-screen display of electronic products Therefore, a long-life and easy-to-operate configurable electric valley touch sensor is what it is. [New content] The main purpose of this creation is to provide a display screen that can be configured in small electronic products.

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Ref 7037PUA 6 M317050 is a touch sensing device that uses capacitive sensing for input position recognition. According to the present invention, comprising: a panel, a first axis sensing layer, a second axis sensing layer, an insulating layer disposed between the first and second axis sensing layers, and a substrate, the layers being glued to each other Forming 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 trace and the second axis trace are matrix-staggered The first axis sensing layer and the second axis sensing layer are respectively provided with contacts and electrically connected to the silver guiding path disposed at the edge of the panel, and connected to the signal output cable, so that the sensing signal of the sensing layer can pass through the The signal output cable is transmitted to the subsequent signal processing circuit. Preferably, the first axis sensing layer and the second axis sensing layer are formed by etching using an indium tin oxide (ITO) transparent film having good electrical conductivity. The present invention further includes an electromagnetic shielding layer on the bottom surface of the substrate, and the first axis sensing layer and the second axis sensing layer as ground layers thereof, and an interceptable electromagnetic interference signal to maintain the capacitive touch. The board works normally. This creation is not limited to the above-mentioned forms. Obviously, it is obvious to those skilled in the art that a 'with reference to the above description, there can be more improvements and changes, so that all are made under the same creative spirit. Regarding the bribe modification or defamation of this _, the reduction is included in the lining of the original intention of protection and will be continued after Chen Ming 1 will be followed by the specific embodiment, the Qi-step _ _ jingjing. [Embodiment] As shown in the first and second figures, the first embodiment of the present invention is a capacitive touch sensing device with a transparent plate body, which includes a secret ^ 2 mine, a domain face 3, = 2 * ·*

Ref 7037PUA 7 M317050 An insulating layer 4 between a X-axis and a Y-axis sensing layer, a substrate 5 and a signal output cable 6 , wherein the panel 1 is an insulating thin layer material of a light transmittance, for example A polyester (PET) film or a cycloolefin copolymer (Cyclic 〇lefln copolymer) material is used, and the X-axis sensing layer 2 and the Y-axis sensing layer 3 may be selected from transparent films having good electrical conductivity, such as indium tin. The oxide (abbreviated as ITO) film, the insulating layer 4 between the x-axis and the γ-axis sensing layer is also selected to be a light-transmitting insulating material such as ink or a polyester film having a high light transmittance, and the substrate 5 is Using a transparent material with a hard material, such as a transparent glass g plate, an acrylic plate, a polyester plate, the signal output cable 6 can be selected from a flexible printed circuit board (FPC)' and has several guides on the wire. And the materials of the foregoing layers are glued and laminated to each other to form a transparent plate body, and the X-axis sensing layer 2 and the γ-axis sensing layer 3 are respectively provided with the contacts 21 and 31 and transmitted through the silver guiding path 61 disposed at the edge of the panel. The pilot is transmitted to the signal output cable 6' and then transmitted to the subsequent Signal processing circuitry. As with the above configuration, 'the equivalent capacitance is formed between the X-axis sensing layer 2 and the silver guiding path 61'. There is also an equivalent capacitance between the Y-axis sensing layer 3 and the silver guiding path 61, so when the finger or When the conductor touches or flicks over the surface of the touchpad, the signal processing circuit can judge the contact position of the conductor or the finger by the change of the electric valley; accordingly, the transparent touch panel of the creation can be configured in the electronic product. In front of the display, the user can easily input through the finger on the screen to touch the desired position of the panel. As shown in FIG. 2 and FIG. 4, the second embodiment of the present invention is a capacitive touch sensing device for removing a transparent magnetic body (Electro Magnetic Interference (EMI)), which comprises a panel 1 and an X-axis sensing layer 2 , a Y-axis sensing layer 3, an insulating layer 4 disposed between the X-axis and the γ-axis sensing layer, a substrate 5, a signal output cable 6 and an electromagnetic screen (S)

Ref. 7037PUA 8 M317050 Shield 7; wherein the panel 1 is a high transmittance insulating thin layer material, for example, a polyester (PET) film or a cycloolefin copolymer (c 〇 c) material, χ The shaft sensing layer 2 and the γ-axis sensing layer 3 may be selected from a transparent thief having good electrical conductivity, such as a tin oxide (10) (1) film, and the insulating layer 4 between the X-axis and the y-axis sensing layer is also selected to be translucent. Insulation material 'such as ink or high light transmittance thief, the substrate 5 is made of a transparent material of transparent material, such as transparent glass plate, acrylic plate, the signal output cable 6 is optional:- A flexible printed circuit board (FPC) is used, and a plurality of conductive paths are provided on the line, and the electromagnetic shielding layer 7 is disposed on the bottom surface of the substrate 5. A transparent film having good electrical conductivity, such as indium tin oxide, may be selected. (ITO) film, and the first layers of materials can be glued together to form a transparent plate body, and the first axis-inducing layer 2 and the second minus three points have contacts 2b on the substrate 5 and on the surface of the aforementioned second alleviation layer 3 has a transfer., "At the transfer point ° has a number of The glue holes 52 of the plate body are filled with conductive materials in the glue holes, and the contacts 2 and 31 of the X-axis sensing layer 2 and the Y-axis sensing layer 3 are electrically connected to the transfer point 51. The electromagnetic shielding layer 7 is electrically connected in series with the x-axis sensing layer 2 and the axis sensing layer 3 as a ground line, and then transmitted to the signal output cable 6 and then transmitted to the subsequent signal processing circuit. As with the above arrangement, an equivalent capacitance is formed between the x-axis sensing layer 2 and the electromagnetic shielding layer 7, and an equivalent capacitance exists between the γ-axis sensing layer 3 and the electromagnetic shielding layer 7, so when the finger or When the conductor touches or flicks over the surface of the touchpad, the signal processing circuit can judge the contact position of the conductor or the finger by the change of the capacitance; and the electromagnetic shielding layer 7 can be used as the X-axis touch 2 and γ. In addition to the ground line of the shaft surface 3, the electromagnetic interference signal can also be blocked to maintain the normal operation of the capacitive touch panel. 9 < S )

Ref 7037PUA M317050 [Simple description of the drawing] The first drawing of the drawing is a side view of the creation; and the second drawing is a schematic view of the creative sensing layers 2 and 3; A cross-sectional plan view of the substrate of the third figure is shown in cross section. [Description of main component symbols] Panel 1 Contact 21, 31 Insulation 4 Transfer point 51 Signal output cable 6 Electromagnetic shield 7

X-axis sensing layer 2 Y-axis sensing layer 3 Substrate 5 Dispensing hole 52 Silver guide 61

Claims (1)

M317050 IX. Patent application scope: 1. A capacitive touch sensing device, comprising: · a panel' is an insulating thin layer with high transmittance; the first axis sensing layer is a transparent film with good electrical conductivity, a first axis trace is included and a contact is provided at the axis trace; an insulating layer is a light transmissive insulating thin layer; The second axis sensing layer is a transparent film having good electrical conductivity, and includes a second axis trace and having contacts at the axis trace; a substrate is a light transmissive insulating plate; and a signal The output cable is provided with a plurality of guiding paths on the line; the foregoing layers are sequentially laminated to each other to form a transparent plate body, and the first-axis track and the second axis track are arranged in a matrix. The contact between the first axis sensing layer and the second axis sensing layer is electrically connected to the silver guiding path disposed at the edge of the panel, and is connected to the signal output cable, so that the sensing signal of the sensing layer can be output through the signal output cable. Transfer to subsequent signal processing circuits. 2. The capacitive touch sensing device according to the invention of claim i, wherein the conductive transparent film of the first axis sensing layer and the second axis sensing layer is an oxygen brain 0 3 , a capacitive touch The control sensing device comprises: a panel, which is an insulating thin layer with high transmittance; the first-axis sensing layer is a through-track with good electrical conductivity, and a contact is provided at the axis end; With axis Γ Ref Ref 7037PUA 11 M317050 i an insulating layer, which is a light-transmissive insulating thin layer; the second axis is a turn, which has a good conductive ship, which has a second axis trace and has a contact at the axis end; a substrate having a smoothing edge plate on which a transfer point is provided on the surface of the second axis sensing layer, and a plurality of dispensing holes penetrating through the plate body are arranged at the transfer point. And inserting a conductive material into the dispensing holes, wherein the electromagnetic shielding layer is a transparent film having good electrical conductivity, disposed on the bottom surface of the substrate, and transmitting the conductive material through the dispensing hole to the first The shaft sensing layer and the second axis sensing layer are electrically connected and serve as grounding layers thereof; and a signal output cable, and a plurality of guiding paths are arranged on the wire; the foregoing layers are glued together to form a transparent plate. Body, and the first axis trace and the second axis trace are arranged in a matrix, by electrically connecting the electromagnetic shielding layer and the two sensing layers in series as a ground line, and then connecting to the signal Output cable, so that the sensing signal of the sensing layer can be The signal output cable is transmitted to the subsequent signal processing circuit via the signal output. 4. The capacitive touch sensing device according to claim 3, wherein the conductive transparent film of the first axis sensing layer, the second axis sensing layer and the electromagnetic shielding layer is a film of indium tin oxide. 12 Ref 7037PUA