TWI374378B - Integrated touch panel and electronic device using the same - Google Patents

Description

1374378

TW4786PA VI. Description of the Invention: [Technical Field] The present invention relates to a touch panel, and more particularly to an integrated capacitive and resistive touch panel. [Prior Art] Touch panels that are commercially available include capacitive, resistive, ultrasonic, infrared, and electromagnetic induction, each having different advantages and disadvantages. Taking a capacitive touch panel as an example, it can be multi-touch and has a simple structure, so it is suitable for mass production. However, the capacitive touch panel is less accurate for finger sensing, and usually needs to be used with a stylus. As for the resistive touch panel, it does not provide a multi-touch function, and thus the sensitivity is insufficient. Considering the cost, efficiency and ease of operation, how to meet the market demand is the focus of actively developing products for various manufacturers. SUMMARY OF THE INVENTION The present invention relates to an integrated touch panel that combines the functions and features of a capacitive and resistive touch panel to meet the needs of the market. The present invention provides an integrated touch panel including a first substrate, a second substrate, a third substrate, a first bonding layer, a second bonding layer, a first axis sensing layer, a second axis sensing layer, and a shielding layer. a first conductive film, a second conductive film, two first conductive electrodes and two second conductive electrodes. The second substrate is disposed between the first substrate and the third substrate. The first axis sensing layer, the first bonding layer and the second axis sensing layer are sequentially stacked on the first substrate and the second substrate 1374378

I (between the TW4786PA, wherein the first axis sensing layer and the second axis sensing layer correspond to one of the capacitive touch regions of the touch panel. The shielding layer is disposed adjacent to the first conductive film on the second substrate and the third substrate The first conductive film corresponds to one of the resistive touch regions of the touch panel, and the second adhesive layer and the second conductive film are sequentially stacked on the first conductive film and Between the third substrates, wherein the second bonding layer is disposed along an edge of the touch panel, and the second conductive film corresponds to the first conductive film. The two first conductive electrodes are disposed in parallel with each other on the first conductive film and the first conductive film Between the two bonding layers, the two second conductive electrodes are disposed in parallel with each other between the second conductive film and the second bonding layer, and the extending direction of the first conductive electrode is perpendicular to the extension of the second conductive electrode. The remaining integrated touch panels of the present invention will be separately described in the embodiments. The present invention further provides an electronic device including a display panel and the integrated touch panel described above. More The electronic device will be described in detail in the embodiments. In order to make the above description of the present invention more comprehensible, the following is a detailed description of the preferred embodiment and the accompanying drawings, as follows: Referring to FIG. 1 and FIG. 2A, FIG. 1 is an exploded view of an integrated touch panel according to a preferred embodiment of the present invention, and FIG. 2A is a schematic plan view showing the components of the integrated touch panel of FIG. As shown in FIG. 1 , the integrated touch panel 10 includes a first substrate 110 , a second substrate 120 , a third substrate 130 , a first bonding layer 141 , a second bonding layer 142 , and a first axis sensing layer 151 . Second axis sensing layer 152, shielding layer 160, first conductive film 5 1374378

TW4786PA 171, first conductive film 172, two first conductive electrodes 181 and two second conductive electrodes 182. The second substrate 120 is disposed between the first substrate 11 () and the third substrate 130. The first axis sensing layer 151 is disposed on the lower surface of the first substrate n'. The second axis sensing layer 152 is disposed on the upper surface of the second substrate 12, and the first axis sensing layer 151 is corresponding to the second axis sensing layer 152. Capacitive touch area CTP of control panel 10 (see Figure 2A). The first bonding layer 141 is disposed between the first axis sensing layer 151 and the second axis sensing layer 152 for isolating and combining the first axis sensing layer 15 1 and the second axis sensing layer 152. The shielding layer 160 is disposed adjacent to the first conductive film 171 on the lower surface of the second substrate 120, wherein the shielding layer 16 〇 corresponds to the capacitive touch region CTP 'the first conductive film 171 corresponds to the resistive layer of the touch panel Touch area RTP (see Figure 2A). The second conductive film 172 is disposed on the upper surface of the third substrate 130. The second bonding layer 142 is disposed along the edge of the touch panel (7) and disposed between the first conductive film 171 and the second conductive film 172 for insulating the first conductive film 丨7丨 from the second conductive film 172. Isolation and combination. A first conductive electrode 181 is disposed between the first conductive film 171 and the first bonding layer 142 in parallel with each other, and the two second conductive electrodes (8) are disposed in parallel with each other on the second conductive film 172 and the second bonding layer. Between 142, wherein the extending direction of the first conductive electrode 181 is perpendicular to the extending direction of the second conductive electrode 182. As shown in FIG. 2A, the capacitive touch area CTp is adjacent to the resistive touch area and does not overlap, so that the integrated touch panel H) - some of the eight have the function of the electric touch, the other Some have the function of resistive touch.匕卜电谷 touch area CTP area and resistive touch area RTp 1374378

The area of the TW4786PA can be the same or different, so that the structure of the integrated touch panel 10 can be more flexible according to the design requirements of different products. As shown in FIG. 1 , the integrated touch panel 10 further includes two signal transmission lines 191 and 192 , wherein the signal transmission line 191 is electrically connected to the capacitive touch area CTP for transmitting signals for controlling the capacitance. Touch sensing of the touch area CTP. The signal transmission cable 192 is electrically connected to the resistive touch area RTP to control the touch sensing of the resistive touch area RTP. The signal transmission cables 191, 192 are, for example, flexible printed circuit boards. In addition, the integrated touch panel 10 can further provide a third bonding layer 143 on the other surface of the third substrate 130 relative to the second conductive film 172 for enhancing the strength of the touch panel 10 combined with other components. The material of the three-ply layer 143 may be a pressure sensitivity adhesive (PSA). Further, a release film 195 may be further disposed on the other surface of the third bonding layer 143 with respect to the third substrate 130 to protect the third bonding layer 143. Please refer to the 2B, 2C, and 2D diagrams. The 2B is a cross-sectional view of the integrated touch panel of FIG. 2A along the B-B' tangent line, and FIG. 2C is the 2B ® diagram of the capacitive touch area. Partially enlarged view, FIG. 2D is a partial enlarged view of the intersection of the capacitive and resistive touch regions of FIG. 2B. After the components of FIG. 1 are assembled, as shown in FIG. 2B, the substrate sequence of the integrated touch panel 10 from top to bottom is, for example, the first substrate 110, the second substrate 120', and the third substrate 130. These three substrates are, for example, a transparent substrate or a flexible film or the like which can be made of a polyester material (PET). As shown in Fig. 2C, the first axis sensing layer 151 is disposed on the lower surface of the first substrate 110, and the second axis sensing layer 152 is disposed on the upper surface of the second substrate 120. The material of the first axis sensing layer 151 and the second axis sensing layer 152 is a transparent electrode material, which is, for example, oxygen 7 1374378

TW4786PA: tin (^dlum tm. she, ιίό) ' and can form different electrode patterns by means of a film or the like (two 1 and the second axis sensing layer (5) are touched on the panel 10 == capacitance change" Different touch positions: the first Γ 52 2 is used to bond the first axis sensing layer 151 and the second axis sensing layer to “stay the insulating gap between the two. The material of the first bonding layer 141 can be an insulating material or a pressure. The signal transmission cable 191 is electrically connected to the first axis sensing layer 151. For example, as shown in FIG. 2D, the shielding layer 16〇 is not adjacent to the first conductive film ΐ7ΐ, and is not disposed on the second substrate. In the red table, the shielding layer 160 corresponds to the position of the first-axis sensing layer 151 and the second axis sensing layer 152, and the first electrical film 17'1 corresponds to the second conductive film (7) on the upper surface of the second substrate 13 (). The shielding layer 160 and the first conductive film m can be simultaneously fabricated from the transparent electrode material and are preferably separated in a closed manner. The shielding layer can be combined with the capacitive touch region CTp and the resistive touch. The control area RTP is separated to 'more to prevent external electronic noise from being transmitted to the capacitive touch area ctp. Two first conductive electrodes 181 (see g!) are disposed under the electric film 171, and two second conductive electrodes 182 are disposed above the second conductive film 172 (see Fig. 1 or Fig. 2C). The first and second conductive electrodes S m and 182 are preferably silver conductive electrodes, and can be formed on the first and second conductive films 171 and 172 by printing. The second bonding layer 142 (see Fig. 2C is disposed between the first conductive electrode ΐ8ι and the second conductive electrode 182, and the material of the second conductive electrode 182 is an insulating material. The second conductive electrode 182 is, for example, a through hole (not shown) of the second bonding layer 142. Electrically connected to the signal transmission cable 192 (see Figure 2C). 1374378

TW4786PA 凊 Referring to Figure 3, there is shown an intention of an electronic device in accordance with a preferred embodiment of the present invention. As shown in Fig. 3, the integrated touch panel 10 is used, for example, in an electronic device 2, and is used in conjunction with a display panel 21A. The integrated touch panel 10 is covered on the display panel 210, and is connected to other control circuits (not shown) through the signal transmission lines 191 and 192. Since the touch area of the integrated touch panel 1G is divided into a conductive touch area CTP and a resistive touch area RTp, the integrated touch panel H) has both multi-touch and handwriting functions. In this way, according to the functional requirements of the electronic device 200, the area of the capacitive touch area CTP and the resistive touch area RTp can be appropriately allocated, and the hand surface of the display panel can be separated from the display area or Reserved areas are used for other functions. The integrated touch panel and the electronic device using the same in the above embodiments of the present invention integrate a capacitive and resistive touch mechanism on a single touch panel, so that the touch panel has both capacitive and resistive functions. The touch function of the type can take into account the advantages of the conventional touch panel in the past, thereby improving the functionality and competitiveness of the production. In addition, since the integrated touch Φ board of the above embodiment of the present invention can be fabricated by existing processes and equipment, it is not == cost. Thus, the electronic device of the present invention is more in line with market demand. Lose, application

The invention has been described above with reference to the preferred embodiments, which are not intended to limit the invention. Those skilled in the art to which the present invention pertains can be modified and retouched without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention is attached to the application for special application 9 1374378

TW4786PA is defined by the scope of interest. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded view of an integrated touch panel in accordance with a preferred embodiment of the present invention. FIG. 2A is a schematic plan view showing the combination of components of the integrated touch panel of FIG. 1 . Figure 2B is a cross-sectional view of the integrated touch panel of Figure 2A taken along line B-B'. FIG. 2C is a partial enlarged view of the capacitive touch region of FIG. 2B. Figure 2D is a partial enlarged view of the intersection of the capacitive and resistive touch regions of Figure 2B. Figure 3 is a schematic illustration of an electronic device in accordance with a preferred embodiment of the present invention. [Main component symbol description] 10: Integrated touch panel 110: First substrate 120 Second substrate 130: Third substrate 141 First bonding layer 142: Second bonding layer 143 Third bonding layer 151: First Axis sensing layer 152 Second axis sensing layer 160: shielding layer 171 First conductive film 172: Second conductive film 181 First conductive electrode 182: Second conductive electrode 191 > 19 2: Signal transmission wire 195: Release film 200 Electronic Device 210 : Display Panel CTP: Capacitive Touch Area RTP: Resistive Touch Area

Claims (1)

1374378 t TW4786PA * VII. Patent Application Range: 1. An integrated touch panel having a capacitive touch area and a resistive touch area, wherein the capacitive touch area is related to the resistive touch area Adjacent and non-overlapping, the integrated touch panel includes: a first substrate, a second substrate and a third substrate, wherein the second substrate is disposed between the first substrate and the third substrate; a first axis sensing layer, a first bonding layer and a second axis sensing layer are sequentially stacked between the first substrate and the second substrate, wherein the #1 axis sensing layer and the second axis The sensing layer corresponds to the capacitive touch area; the shielding layer and the first conductive conductive layer are disposed adjacent to the second substrate and the third substrate, wherein the shielding layer corresponds to the capacitive touch area, The first conductive film corresponds to the resistive touch area; a second bonding layer and a second conductive film are sequentially stacked between the first conductive film and the third substrate, wherein the second bonding The layer is disposed along the edge of the touch panel, the first The conductive film corresponds to the first conductive film; a first conductive electrode is disposed in parallel with each other between the first conductive film and the first bonding layer; and a second conductive electrode is disposed in parallel with each other Between the two conductive films and the second bonding layer, the two first conductive electrodes extend in a direction perpendicular to the extending direction of the two second conductive electrodes. The integrated touch panel of claim 1, wherein the shielding layer is the same material as the first conductive film. The integrated touch panel according to claim 1, wherein the first substrate, the second substrate, and the third substrate are transparent substrates. 4. The integrated touch panel of claim 1, wherein the first axis sensing layer, the first _ ^ ^ .. 罘-axis sensing layer, the first conductive film, and the first conductive The material of the crucible is a transparent electrode material. 5. The integrated touch panel of claim 1, wherein the material of the eighth/first bonding layer is a p(10)sensitivity adhesive (PSA). The integrated touch panel of claim 1, wherein the first bonding layer and the second bonding layer are made of an insulating material. 7. The integrated touch panel of claim 1, wherein the two first conductive electrodes and the two second conductive electrodes are silver conductive electrodes. 8. The integrated touch panel of claim 1, further comprising a signal transmission cable electrically connected to the capacitive touch area. 9. The integrated touch panel of claim 1, further comprising a signal transmission cable electrically connected to the resistive touch area. 10. The integrated touch panel of claim 2, further comprising a third bonding layer disposed on the other side of the third substrate relative to the second conductive film. The method includes: a display panel; and an integrated touch surface pole covering the display panel, and having a capacitive touch area and a resistive touch area, wherein the capacitive touch area and the resistive type The touch panel is adjacent to each other and does not overlap. The integrated touch panel includes: a first substrate, a second substrate, and a third substrate, wherein the second substrate is disposed on the first substrate and the third Between the substrates; 12 丄 w / s > TW4786PA a first axis sensing layer, a first bonding layer and a second axis: layer; 'sequential layer # set in the first substrate and the second Between the substrates: the first-axis sensing layer and the second-axis sensing layer correspond to a capacitive touch field, and the shielding layer and a first conductive film are disposed adjacent to the second il region substrate, wherein 'The shielding layer corresponds to the capacitive touch and the first guide The electric film corresponds to the resistive touch area; the first δ layer and the first conductive film are sequentially stacked between the third substrate of the first guide money, wherein the second ^=the touch panel An edge is disposed, the second conductive film corresponds to: a first conductive electrode disposed in parallel with each other between the first conductive film and the second bonding layer; and a second second conductive electrode, mutually Between the bonding layers, and the two first-conducting two-directions are perpendicular to the extending direction of the two second conductive electrodes. The electronic device according to claim 11 is the same as the material of the first conductive film. Wherein the third base of the electronic device: the first substrate of the electronic device and the third substrate, the transparent substrate, the first-axis sensing layer, and the electronic device according to the second item, The material of the conductive film is a transparent layer, a first conductive film, and the electronic device described in the second item of the second item, which is a pressure sensitive adhesive. The electronic device of claim 11, wherein the material of the first bonding layer and the second bonding layer is an insulating material. The electronic device of claim 2, wherein the two first conductive electrodes and the two second conductive electrodes are silver conductive electrodes. The electronic device of claim 11, wherein the integrated touch panel further comprises a signal transmission cable electrically connected to the capacitive touch area. The electronic display device of claim 11, wherein the integrated touch panel further comprises a signal transmission cable electrically connected to the resistive touch region. The electronic device of claim 11, wherein the δ hl integrated touch panel further comprises a third bonding layer disposed on the other side of the third substrate opposite to the second conductive film.