TWM526720U - Pressure-sensitive input equipment - Google Patents

Pressure-sensitive input equipment Download PDF

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Publication number
TWM526720U
TWM526720U TW105206554U TW105206554U TWM526720U TW M526720 U TWM526720 U TW M526720U TW 105206554 U TW105206554 U TW 105206554U TW 105206554 U TW105206554 U TW 105206554U TW M526720 U TWM526720 U TW M526720U
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TW
Taiwan
Prior art keywords
pressure sensing
pressure
touch
electrode
touch sensing
Prior art date
Application number
TW105206554U
Other languages
Chinese (zh)
Inventor
陳風
何加友
葉坤雄
Original Assignee
宸鴻科技(廈門)有限公司
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Publication date
Priority to CN201510404033.7A priority Critical patent/CN106293192A/en
Application filed by 宸鴻科技(廈門)有限公司 filed Critical 宸鴻科技(廈門)有限公司
Publication of TWM526720U publication Critical patent/TWM526720U/en

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Abstract

A pressure-sensitive input equipment includes a substrate, a first surface and a second surface, an electrode layer, and a pressure-sensitive chip. The first surface and the second surface disposed oppositely, and the first surface includes a pressure-sensitive region and a non-pressure-sensitive region complementary to the pressure-sensitive region. The electrode layer comprising a plurality of pressure-sensitive electrode disposed in the pressure-sensitive region. The pressure-sensitive electrode including a first side and a second side opposite to the first side. The pressure-sensitive chip electrically connected to the pressure-sensitive electrode. The design can achieve two functions that detect the touching position and the pressure of the pressure-sensitive input equipment.

Description

Pressure sensing input device
The present disclosure relates to an input device, and more particularly to a pressure sensing input device.
With the development of technology, touch panels have been widely used in various consumer electronic devices, such as smart phones, tablets, cameras, e-books, MP3 players, smart watches and other portable electronic products, or applications. In the display screen of the operation control device, people's daily life has become increasingly inseparable from the electronic products with touch function. With the wide development of the touch panel, the function has also been continuously improved, such as pressure sensing. Functional touch panel.
At present, some products or devices have a pressure sensing function, and the system determines the execution of different subsequent actions by detecting the magnitude of the external pressure. However, the current technology is difficult to achieve accurate detection of the pressure, and the inaccurate detection of the pressure will greatly reduce the user experience, thereby hindering the promotion of the product, while maintaining the characteristics of the product, such as light and thin, The manufacture of highly accurate pressure sensing equipment is a subject of common interest to those skilled in the art.
In order to overcome the problems of the prior art sensing that the touch pressure is not accurate enough and the product or equipment is heavy, the present disclosure provides a pressure sensing input device capable of reducing the thickness of the product and having high pressure detection accuracy.
SUMMARY OF THE INVENTION The solution to the above problem is to provide a pressure sensing input device comprising a substrate, a first surface and a second surface, an electrode layer, and a pressure sensing wafer. The first surface and the second surface are oppositely disposed, and the first surface includes a pressure sensing region and a non-pressure sensing region complementary to the area of the pressure sensing region. The electrode layer includes a plurality of pressure sensing electrodes disposed in the pressure sensing region, the pressure sensing electrode including a first end and a second end opposite the first end. The pressure sensing wafer is electrically connected to the pressure sensing electrode, and the design can achieve the dual function of detecting the touch position and pressure of the pressure sensing input device.
In some embodiments, the pressure sensing input device further includes a plurality of first wires connected to the first end of the pressure sensing electrode; and a plurality of second wires connected to the second end of the pressure sensing electrode a flexible printed circuit (FPC) connecting the first wire and the second wire; the pressure sensing wafer is electrically connected to the pressure sensing electrode through the flexible printed circuit board.
In some embodiments, the pressure sensing electrode is radially curved and curved in the pressure sensing region.
In some embodiments, the area of the pressure sensing zone is smaller than the area of the non-pressure sensing zone.
In some embodiments, the pressure sensing wafer includes a Wheatstone bridge circuit.
In some embodiments, the substrate is a cover plate, and the second surface provides an action for the user to apply a touch.
In some embodiments, the pressure sensing input device further includes a cover plate including a first surface and a component mounting surface opposite to the second surface, the first surface for the user to apply a touch action, and the component mounting surface covers the substrate .
In some embodiments, a plurality of first touch sensing electrodes and a plurality of second touch sensing electrodes are disposed in the non-pressure sensing region, wherein the first touch sensing electrodes and the second touch sensing electrodes are in a non-pressure sense The cross complements in the survey area do not coincide.
In some embodiments, the pressure sensing electrode is disposed in a gap between the first touch sensing electrode and the second touch sensing electrode, and the first touch sensing electrode, the second touch sensing electrode, and the pressure sensing electrode are electrically connected to each other insulation.
In some embodiments, the line width of the pressure sensing electrode is 0.5 to 0.8 times the corresponding position first touch sensing electrode and/or the second touch sensing width, and the line width of the pressure sensing electrode is 5 μm to 300 μm.
In some embodiments, the first touch sensing electrode is triangular and includes a hypotenuse portion of the first touch sensing electrode, and the second touch sensing electrode is also triangular in shape and includes a hypotenuse portion of the second touch sensing electrode. The first touch sensing electrode and the second touch sensing electrode are alternately arranged with each other, and the pressure sensing electrode has a curved shape, and is disposed at a bevel portion of the first touch sensing electrode and a bevel portion of the second touch sensing electrode. Intersected in the space formed by each other.
In some embodiments, the first touch sensing electrodes are radially disposed inside the corresponding second touch sensing electrodes having a radial internal space, and the first touch sensing electrodes include a plurality of first touch sensing electrodes protruding Department and middle part a first touch sensing electrode ball, each of the first touch sensing electrode protrusions is divergingly arranged around the first touch sensing electrode sphere and spaced apart from each other, and a plurality of first portions are formed inside the second touch sensing electrode The two touch sensing electrode grooves are disposed in an inner space formed by the staggered arrangement of the first touch sensing electrode protrusion and the second touch sensing electrode groove.
Compared with the prior art, the substrate of the pressure sensing input device of the present disclosure is divided into a non-pressure sensing area and a pressure sensing area with complementary areas, and a pressure sensing electrode is disposed in the pressure sensing area, and the force of pressing against the outside can be achieved. The detection of the pressure sensing electrode is connected to the Wheatstone bridge circuit through the electrode connection line, and the signal resistance of the pressure sensing electrode can be processed to realize the detection of the pressure.
Disposing a first touch sensing electrode and a second touch sensing electrode in a non-pressure sensing region with a non-crossing complementary non-cross structure, not only can achieve multi-touch, but also ensure the first touch sensing electrode, The second touch touch sensing electrode has a good adjacent relationship, and the pressure sensing electrode is disposed in the inner space formed by the first touch sensing electrode and the second touch sensing electrode, which can save space and reduce wiring difficulty. And does not affect the effects of touch sensing and pressure sensing.
The pressure sensing electrode has a radial shape, a curved shape or a spiral shape, and when the radial shape is adopted, the state in which the force point is diverged from the center position of the force is increased, and the pressure sensing electrode can be improved when the pressure is sensed. Deformation ability to improve the accuracy of pressure detection.
In order to make the pressure sensing electrode have greater deformation capability, the area of the pressure sensing electrode is reduced to be smaller than the corresponding first touch sensing power. The area of the second and second sensing electrodes, that is, the area of the non-pressure sensing area is larger than the area of the pressure sensing area, and the line width of the control pressure sensing electrode is the corresponding position of the first touch sensing electrode and the second sensing electrode line The width is 0.5 to 0.8 times, and the line width of the pressure sensing electrode is 5 μm to 300 μm, which can improve the ability of the pressure sensing electrode to sense deformation. The touch sensing module composed of the pressure sensing input device and the display panel can be Better detection of touch position and pressure.
13‧‧‧Electrode layer
15‧‧‧Substrate
18‧‧‧Circuit system
23‧‧‧Electrical layer
33‧‧‧Electrode layer
43‧‧‧Electrical layer
45‧‧‧Substrate
51‧‧‧ Cover
53‧‧‧Electrical layer
56‧‧‧Substrate
61‧‧‧ Cover
63‧‧‧electrode layer
67‧‧‧ display panel
151‧‧‧ Non-pressure sensing area
153‧‧‧ Pressure Sensing Area
181‧‧‧Connecting line
183‧‧‧Flexible printed circuit board
185‧‧‧Sensor wafer
353‧‧‧ Pressure Sensing Area
511‧‧‧ surface
513‧‧‧ surface
531‧‧‧electrode layer
551‧‧‧electrode layer
561‧‧‧ surface
563‧‧‧ surface
671‧‧‧Polar plate
672‧‧‧Substrate
673‧‧‧Color filters
674‧‧‧Liquid layer
675‧‧‧Drive layer
676‧‧‧Substrate
1311‧‧‧Sensor electrode
1313‧‧‧Sensing electrode
1315‧‧‧Sensor electrode
1811‧‧‧Wire
1813‧‧‧Wire
1851‧‧‧ Wheatstone Bridge Circuit
1852‧‧‧Module Circuit
2311‧‧‧Sensor electrode
2313‧‧‧Sensor electrode
2315‧‧‧Sensor electrode
3311‧‧‧Sensor electrode
3313‧‧‧Sensor electrode
3315‧‧‧Sensor electrode
4311‧‧‧Sensor electrode
4313‧‧‧Sensor electrode
4315‧‧‧Sensor electrode
5315‧‧‧Sensor electrode
5511‧‧‧Sensor electrode
5513‧‧‧Sensing electrode
13111‧‧‧Protruding
13131‧‧‧Protruding
13151‧‧‧End
13152‧‧‧End
18511‧‧‧resistance
18513‧‧‧resistance
18515‧‧‧resistance
23111‧‧‧Beveled part
23131‧‧‧Beveled part
33111‧‧‧protrusion
33113‧‧‧Sense electrode sphere
33131‧‧‧ Groove
43111‧‧‧protrusion
43131‧‧‧ Groove
FPC‧‧‧Flexible Printed Circuit Board
△R‧‧‧ resistance
Figure 1 is a schematic exploded view of a first embodiment of the pressure sensing input device of the present disclosure.
2 is a front elevational view of the touch sensing electrode in the electrode layer of the first embodiment of the pressure sensing input device of the present disclosure.
Figure 3 is a front elevational view of the electrode layer of the first embodiment of the pressure sensing input device of the present disclosure.
Fig. 4 is a circuit diagram showing the structure of a pressure sensing wafer in the first embodiment of the pressure sensing input device of the present disclosure.
Fig. 5 is a front elevational view showing the electrode layer of the second embodiment of the pressure sensing input device of the present disclosure.
Figure 6 is a front elevational view showing the electrode layer of the third embodiment of the pressure sensing input device of the present disclosure.
Figure 7 is a front elevational view showing the electrode layer of the fourth embodiment of the pressure sensing input device of the present disclosure.
Figure 8 is a schematic view showing the layered structure of the fifth embodiment of the pressure sensing input device of the present disclosure.
FIG. 9 is a schematic diagram showing the explosion structure of the touch module of the sixth embodiment of the pressure sensing input device of the present disclosure.
The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
Referring to FIG. 1 , the pressure sensing input device 1 of the first embodiment includes a substrate 15 and an electrode layer 13 formed on the substrate 15 . The electrode layer 13 is formed on the substrate 15 by processes such as imprinting, silk screen printing, etching, and coating. The upper substrate first surface 141, the substrate second surface 143 is disposed opposite to the substrate first surface 141, and the electrode layer 13 includes a plurality of pressure sensing electrodes 1315, and the pressure sensing electrodes 1315 are evenly spaced along the X and Y directions. When the user applies a touch action to the second surface 143 of the substrate, the force is transmitted to the electrode layer 13 on the first surface 141 of the substrate, and each corresponding pressure sensing electrode 1315 in the electrode layer 13 generates a corresponding action according to the pressure sense. The corresponding action of the measuring electrode 1315 further senses the force of the touch pressure, different functional operations that can be realized by different amounts of contact pressure, and such design can greatly improve the experience and satisfaction of the user using the product. The substrate 15 may be a rigid substrate such as glass, tempered glass, sapphire glass, etc.; a flexible substrate such as polyetheretherketone (PEEK), polyimide (PI), polyethylene terephthalate Polyvinyl terephthalate (PET), polycarbonate polycarbonate (PC), polyethylene succinate (PES), polymethyl methacrylate PMMA (polymethylmethacrylate) (PMMA) and a composite of any two or more thereof.
Referring to FIG. 2 and FIG. 3 , in the pressure sensing input device 1 of the first embodiment, the electrode layer 13 further includes a plurality of first touch sensing electrodes 1311 and a second touch sensing electrode 1313 , and the substrate 15 is divided into The non-pressure sensing area 151 and the pressure sensing area 151 are disposed in the non-pressure sensing area 151 with a plurality of first touch sensing electrodes 1311 and a plurality of second touch sensing electrodes 1313. The first touch sensing electrodes 1311 And the second touch sensing electrode 1313 is configured to detect the multi-touch position, wherein the first touch sensing electrode 1311 and the second touch sensing electrode 1313 are staggered and complementary in the non-pressure sensing area 151, and the first touch sensing The sum of the areas of the electrodes 1311 and the second touch sensing electrodes 1313 is the area of the non-pressure sensing area 151, and the pressure sensing area 153 is the area other than the dotted line around the first touch sensing electrodes 1311 and the second touch sensing electrodes 1313. The first touch sensing electrode 1311 includes a plurality of first touch sensing electrode protrusions 1311 extending in the X direction, and the second touch sensing electrode 1313 includes a plurality of second touch sensing electrode protrusions extending in the X direction. Part 13131. The first touch sensing electrode protrusion 13111 and the second touch sensing electrode protrusion 13131 are spaced apart to form a complementary pattern, and the non-pressure sensing area 151 and the pressure sensing area 153 form a complementary configuration and a non-pressure sensing area. The area of 151 is larger than the area of the pressure sensing area 153, and the non-pressure sensing area 151 and the pressure sensing area 153 are complementary in area.
The pressure sensing electrode 1315 is disposed in a curved bending shape in the pressure sensing area 153 of the pressure sensing input device 1 and in the gap between the first touch sensing electrode 1311 and the second touch sensing electrode 1313, the pressure sensing electrode 1315 does not cross the boundary of the pressure sensing zone 153, such a configuration can not only avoid pressure The relative reduction of the area of the non-pressure sensing region 151 caused by the excessively large area of the sensing electrode 1315 affects the effects of the sensing touch positions of the first touch sensing electrode 1311 and the second touch sensing electrode 1313, and pressure can be avoided. The accuracy of the sensing pressure caused by the area of the sensing electrode 1315 being too small is not good. Each pressure sensing electrode 1315 includes a first end 13151 and a second end 13152 opposite the first end.
The pressure sensing input device 1 further includes a circuit system 18 including a plurality of electrode connection lines 181, a flexible printed circuit board 183, and a pressure sensing wafer 185, the pressure sensing wafer 185 including a Wheatstone bridge circuit 1851, The electrode connection line 181 is divided into a plurality of first wires 1811 and second wires 1813. One end of each of the first wires 1811 is connected to the flexible printed circuit board 183, and the other end is connected to the first end portion 13151 of the pressure sensing electrode 1315. Similarly, one end of each of the second wires 1813 is connected to the flexible printed circuit board 183, and the other end is connected to the second end portion 13152 of the pressure sensing electrode 1315. The first wire 1811, the second wire 1813 and the pressure sensing electrode 1315 are connected in a loop. The material of the electrode layer 13 and the electrode connection line 181 is not limited to indium tin oxide (ITO), but also nano silver wire, nano copper wire, graphene, polyaniline, poly 3,4-ethylene dioxythiophene (PEDOT). ): Sodium polystyrene sulfonate (PSS) transparent conductive polymer material, carbon nanotubes, graphene, etc., at this time, at least two sides of the substrate 15 can be made into a frameless design, and a frameless pressure sensing input device is obtained.
Referring to FIG. 4, the pressure sensing wafer 185 in the pressure sensing input device 1 can perform signal processing on the change of the resistance value of the pressure sensing electrode 1315, thereby more accurately detecting the external pressure. The output of subsequent different control signals. When the pressure sensing electrode 1315 generates a resistance value After the change, the resistance values of the auxiliary resistors 18511, 18515, 18513 and the pressure sensing electrode 1315 in the Wheatstone bridge circuit 1851 are connected in parallel to form a change in resistance value, and the electrical signal change caused by the change in the resistance value passes through the Wheatstone bridge. The processing of the circuit 1851 is transmitted to the pressure sensing wafer 185, where ΔR is the amount of change in the resistance value of the pressure sensing electrode 1315. Since the resistance value of the pressure sensing electrode 1315 after being subjected to the touch pressure is small, in order to facilitate the analysis processing of the subsequent signal, here, the Wheatstone bridge circuit 1851 detects the resistance change amount of the pressure sensing electrode 1315, and the pressure is sensed. The other module circuits 1852 of the test wafer 185 perform signal amplification and the like.
The pressure sensing input device 1 of the present disclosure realizes the function of the pressure sensing mainly according to the deformation of the pressure sensing electrode 1315 after the external pressure is applied to generate a resistance value, and the pressure sensing electrode 1315 forms a loop connection through the electrode connection line 181. The flexible printed circuit board 183, the resistance value change of the pressure sensing electrode 1315 is directly transmitted to the pressure sensing wafer 185 via the Wheatstone bridge circuit 1851 through the flexible printed circuit board 183, thereby realizing the sensing function of the pressure. In general, the deformation and resistance changes of the pressure sensing electrode 1315 satisfy the following formula: GF=(ΔR/R)/(ΔL/L), where GF is the strain gauge factor, R is the initial resistance value of the pressure sensing electrode 1315, and L is the total length of the corresponding wire of the pressure sensing electrode 1315, ΔR The amount of change in the resistance value of the pressure sensing electrode 1315, ΔL is the amount of change in the length of the wire, and in the case where the values of GF, R, and L are fixed, the change in the length of the wire ΔL is larger, and the change in resistance ΔR It can be better detected that the value of GF must be greater than 0.5 in order to obtain a better sensing effect.
Referring to FIG. 5 , the electrode layer 23 of the second embodiment of the present disclosure includes a plurality of first touch sensing electrodes 2311 , a second touch sensing electrode 2313 and a pressure sensing electrode 2315 , and the first touch sensing electrode 2311 is a right angle. The triangle includes a first touch sensing electrode oblique portion 23111, and the second touch sensing electrode 2313 is also a right triangle shape and includes a second touch sensing electrode oblique portion 23131, the first touch sensing electrode 2311 and the The two touch sensing electrodes 2313 are alternately arranged with each other, and the pressure sensing electrodes 2315 are arranged in a space in which the first touch sensing electrode oblique side portion 23111 and the second touch sensing electrode oblique side portion 23131 are alternately formed.
The first touch sensing electrode 2311 and the second touch sensing electrode 2313 are not limited to a right triangle, and may be a rectangle, a parallelogram, or the like.
Referring to FIG. 6 , the electrode layer 33 of the third embodiment of the present disclosure also includes a plurality of first touch sensing electrodes 3311 , a second touch sensing electrode 3313 and a pressure sensing electrode 3315 , and the first touch sensing electrode 3311 is Radially disposed inside the corresponding second touch sensing electrode 3313 having a radial internal space, the first touch sensing electrode 3311 includes a plurality of first touch sensing electrode protrusions 33111 and a first touch sensing of the intermediate portion Each of the first touch sensing electrode protrusions 33111 is divergently disposed around the first touch sensing electrode ball 33113 and is evenly spaced from each other, and a plurality of second touch sensing are formed inside the second touch sensing electrode 3313. The electrode recess 33131, the width of each of the second touch sensing electrode recesses 33131 is greater than the width of the corresponding first touch sensing electrode protrusions 33111, and the first touch sensing electrodes 3311 and the second touch sense are realized by such an arrangement. The staggered complement of the measuring electrodes 3313, and the touch sensing electrodes of different electrical directions are preferably realized in the same plane The internal space formed by the staggered complementation of the first touch sensing electrode 3311 and the second touch sensing electrode 3313 is the pressure sensing area 353, and the pressure sensing electrode 3315 is disposed in the pressure sensing area 353, and each pressure The sensing electrode 3315 is bent back into three radial portions and each pressure sensing electrode 3315 is formed by the three radial portions connected in series, and the force exerted by the user on the surface of the object is presented from the center point. Radial divergence, the force will be attenuated with the distance from the center point, so the radial arrangement of the pressure sensing electrode 3315 conforms to the force pattern of the force point uniformly spreading from the center to the periphery, which is beneficial to the pressure sensing electrode 3315 The magnitude of the induced pressure. In other embodiments, each pressure sensing electrode 3315 can also be formed in series from other numbers of radial portions.
The number of the first touch sensing electrode projections 33111 is not limited to seven in the third embodiment.
The pressure sensing electrode 3315 enters from one side, passes through a space formed by the staggered complementation of the first touch sensing electrode 3311 and the second touch sensing electrode 3313, and finally is taken out from the other side, and the pressure sensing electrode 3315 is disposed at the first Between the touch sensing electrode 3311 and the second touch sensing electrode 3313, not only space can be saved, but also the difficulty of the wiring is not increased. The design alternately lays out the first touch sensing electrode 3311, the second touch sensing electrode 3313, and The pressure sensing electrode 3315 also facilitates system detection and increases yield.
Referring to FIG. 7 , the fourth embodiment of the present disclosure is different from the third embodiment in the shape of each pressure sensing electrode 4315 in the electrode layer 43 . The electrode layer 43 includes a plurality of first touch sensing electrodes 4311 . The second touch sensing electrode 4313 and the pressure sensing electrode 4315, the first touch sensing electrode 4311 includes a plurality of uniformly arranged first touch sensing electrode protrusions 43111, and the second touch The touch sensing electrode 4313 includes a plurality of uniformly disposed second touch sensing electrode recesses 43131. The first touch sensing electrodes 4311 are arranged in a "king" shape, and the corresponding second touch sensing electrodes 4313 and the first touch. The sensing electrodes 4311 are staggered and complementary. The electrode arrangement of the design can maximize the space of the substrate 45 and the space ratio of the second touch sensing electrode 4313 and the first touch sensing electrode 4311 is uniform, and the pressure sensing electrode 4315 Entering from one side, through the space formed by the first touch sensing electrode 4311 and the second touch sensing electrode 4313 being alternately complementary, and finally drawn from the other side, the pressure sensing electrode 4315 is disposed at the first touch sensing electrode 4311 Between the second touch sensing electrode 4313 and the second touch sensing electrode 4313, not only the space can be saved, but also the difficulty of the wiring is not increased. The design interleaves the first touch sensing electrode 4311, the second touch sensing electrode 4313 and the pressure sensing electrode. The 4315 also facilitates system detection and can also increase yield. In order to achieve better touch sensing and pressure sensing effects, the line width of the pressure sensing electrode 4315 is configured to correspond to the width of the first touch sensing electrode protrusion 43111 and the second touch sensing electrode groove 43131 to 0.5 0.8 times, and in general, the line width of the pressure sensing electrode 4315 is 5 μm to 300 μm.
Referring to FIG. 8, the pressure sensing input device 5 of the fifth embodiment of the present disclosure comprises a cover 51, an electrode layer 53 and a substrate 56. The cover 51 has a cover first surface 511 and a cover second surface 513 and a cover. The first surface 511 of the plate and the second surface 513 of the cover plate are oppositely disposed. The material of the cover plate 51 may be a hardened plastic such as hard plastic, tempered glass or aluminum oxide. The first surface 511 of the cover plate is pressed by the user. Action, the electrode layer 53 includes a first electrode layer 531 and a second electrode layer 551. The first electrode layer 531 has a plurality of pressure sensing electrodes 5315 and the first electrode layer 531 is disposed on the second surface 513 of the cover plate 51. ,second The electrode layer 551 has a plurality of first touch sensing electrodes 5511 and a plurality of second touch sensing electrodes 5513 and the second electrode layer 551 is disposed on the substrate first surface 561 of the substrate 56, and the cover second surface 513 and the substrate 56 The first surface 561 of the substrate is disposed opposite to each other. In other embodiments, the first electrode layer 531 and the second electrode layer 551 may be simultaneously disposed on the first surface 511 of the cover plate, and the second surface 513 of the cover plate is applied by the user to apply a pressing force. For the substrate 56, the first electrode layer 531 may be disposed on the first surface 561 of the substrate, and the second electrode layer 551 may be disposed on the second surface 563 of the substrate.
Referring to FIG. 9 , a sixth embodiment of the present disclosure provides a touch module 6 . The touch module 6 includes a cover 61 , an electrode layer 63 , and a display panel 67 . The electrode layer 63 is located on the cover 61 and the display panel 67 . In the meantime, the disclosure does not limit the type of the display panel 67, which may have a liquid crystal, an organic light emitting diode (OLED) or a plasma, and the display panel 67 includes an upper portion from the top to the bottom. The polarizing plate 671, the upper substrate 672, the color filter 673, the liquid crystal layer 674, the driving layer 675, and the lower substrate 676, the upper polarizing plate 671 is disposed on the upper substrate 672, and the color filter 673 is disposed under the upper substrate 672. The color filter 673 has a plurality of color filters. The electrode layer 63 is formed on the upper surface of the upper polarizing plate 671. The driving layer 675 is disposed on the lower substrate 676. The driving layer 675 has a plurality of thin film transistors (Thin The film transistor (TFT) is disposed between the color filter 673 and the driving layer 675.
Compared with the prior art, by dividing the substrate 15 of the present pressure sensing input device 1 into a non-pressure sensing region 151 and a pressure sensing region 153 having complementary areas, a pressure sensing electrode 1315 is disposed in the pressure sensing region 153, Can be Now, the detection of the magnitude of the external pressing force, the two ends of the pressure sensing electrode 1315 are connected to the Wheatstone bridge circuit 1851 through the electrode connection line 181, and the signal resistance of the pressure sensing electrode 1315 can be signal processed, which is more advantageous. Pressure detection.
The first touch sensing electrode 1311 and the second sensing electrode 1313 are disposed in the non-pressure sensing region 151 in a non-crossing complementary non-crossing structure, which can not only realize multi-touch but also ensure the first touch sensing. Under the premise that the electrode 1311 and the second sensing electrode 1313 are in a good neighbor relationship, the pressure sensing electrode 1315 is disposed in the internal space in which the first touch sensing electrode 1311 and the second sensing electrode 1313 are alternately formed, which can save space. Reduce the difficulty of wiring without affecting the effects of touch sensing and pressure sensing.
The pressure sensing electrode 1315 has a radial shape, a curved shape, and the like. When the radial shape is used, the state in which the force point is diverged from the center position of the force is increased, and the deformation of the pressure sensing electrode 1315 when the pressure is sensed can be improved. Ability to improve the accuracy of pressure detection.
In order to make the pressure sensing electrode 1315 have a greater deformability, the area of the pressure sensing electrode 1315 is reduced to be smaller than the area of the corresponding first touch sensing electrode 1311 and second sensing electrode 1313. The area of the pressure sensing area 151 is larger than the area of the pressure sensing area 153, and the line width of the control pressure sensing electrode 1315 is 0.5 to 0.8 times the line width of the corresponding position first touch sensing electrode 1311 and second sensing electrode 1313. The line width of the pressure sensing electrode 1315 is 5 μm to 300 μm, which can improve the ability of the pressure sensing electrode 1315 to sense deformation. The touch sensing module 1 and the display panel 67 can be better. Achieve detection of touch position and pressure.
The above description is only the preferred embodiment of the disclosure, and is not intended to limit the disclosure, and any modifications, equivalents, and improvements made within the scope of the disclosure should be included in the scope of the disclosure.
18‧‧‧Circuit system
151‧‧‧ Non-pressure sensing area
153‧‧‧ Pressure Sensing Area
183‧‧‧Flexible printed circuit board
185‧‧‧ Pressure Sensing Wafer
1311‧‧‧Sensor electrode
1313‧‧‧Sensing electrode
1851‧‧‧ Wheatstone Bridge Circuit
13111‧‧‧Protruding
13131‧‧‧Protruding

Claims (12)

  1. A pressure sensing input device includes: a substrate including a first surface and a second surface, the first surface and the second surface being oppositely disposed, the first surface comprising a pressure sensing region and the pressure sense a non-pressure sensing region having a complementary area; an electrode layer comprising a plurality of pressure sensing electrodes disposed in the pressure sensing region, the pressure sensing electrodes including a first end and the first a second end portion opposite to the end; and a pressure sensing chip electrically connected to the pressure sensing electrodes, the pressure sensing wafer is configured to detect a resistance change amount generated by the pressure sensing electrodes after being subjected to pressure The purpose of detecting the pressure is reached.
  2. The pressure sensing input device of claim 1, further comprising: a plurality of first wires connected to the first ends of the pressure sensing electrodes; a plurality of second wires, and the pressure sensing electrodes The second end is connected; and a flexible printed circuit board connecting the first wire and the second wire; the pressure sensing chip is electrically connected to the pressure sensing electrodes through the flexible printed circuit board.
  3. The pressure sensing input device of claim 1, wherein the pressure sensing electrodes are radially or curved in the pressure sensing region.
  4. The pressure sensing input device of claim 1, wherein an area of the pressure sensing region is smaller than an area of the non-pressure sensing region.
  5. The pressure sensing input device of claim 1, wherein the pressure sensing die comprises a Wheatstone bridge circuit.
  6. The pressure sensing input device of claim 1, wherein the substrate is a cover plate for the user to apply a touch action.
  7. The pressure sensing input device of claim 1, further comprising a cover plate, wherein the cover plate comprises a first surface and a component mounting surface opposite to the first surface, the first surface being applied by a user In the touch action, the component mounting surface covers the substrate.
  8. The pressure sensing input device of claim 1, wherein a plurality of first touch sensing electrodes and a plurality of second touch sensing electrodes are disposed in the non-pressure sensing region, wherein the first touch sensing electrodes and The second touch sensing electrodes do not coincide in each other in the non-pressure sensing region.
  9. The pressure sensing input device of claim 8, wherein the pressure sensing electrodes are disposed in a gap between the first touch sensing electrodes and the second touch sensing electrodes, the first touch sensing electrodes The second touch sensing electrodes and the pressure sensing electrodes are electrically insulated from each other.
  10. The pressure sensing input device of claim 9, wherein the line widths of the pressure sensing electrodes are 0.5 to 0.8 times the widths of the first touch sensing electrodes or the second touch sensing electrodes. The pressure sensing electrodes have a line width of 5 μm to 300 μm.
  11. The pressure sensing input device of claim 8, wherein the first touch sensing electrodes are triangular and include a first touch sensing electrode oblique portion, the second touch sensing electrodes are also triangular and include a second touch sensing electrode bevel portion, the first touch sensing electrodes and the second touch sensing electrodes are alternately arranged with each other, and the pressure sensing electrodes are curved and arranged at the first touch The sensing electrode oblique side portion and the second touch sensing electrode oblique side portion are interdigitated in a space formed by each other.
  12. The pressure sensing input device of claim 8, wherein the first touch sensing electrodes are radially disposed inside the corresponding second touch sensing electrodes having a radial inner space, the A touch sensing electrode includes a plurality of first touch sensing electrode protrusions and a plurality of first touch sensing electrode spheres at the intermediate portion, the first touch sensing electrode protrusions having the first touch feelings The second and second touch sensing electrode grooves are formed in the second touch sensing electrodes, and the radial pressure sensing electrodes are disposed on the first touches. The sensing electrode protrusion and the second touch sensing electrode grooves are arranged in an internal space formed by the staggered configuration.
TW105206554U 2015-06-10 2016-05-06 Pressure-sensitive input equipment TWM526720U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN106354342A (en) * 2016-11-02 2017-01-25 友达光电股份有限公司 Touch control sensing device
CN106405909A (en) * 2016-09-30 2017-02-15 上海天马微电子有限公司 Flexible display device, flexible display panel and driving method thereof
TWI609305B (en) * 2015-06-10 2017-12-21 宸鴻科技(廈門)有限公司 Pressure-sensitive input equipment
CN108572757A (en) * 2017-03-07 2018-09-25 京东方科技集团股份有限公司 Touch panel and preparation method thereof, touch control display apparatus
TWI686594B (en) * 2016-09-14 2020-03-01 大陸商宸鴻科技(廈門)有限公司 Pressure sensing module and pressure sensing touch control system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI609305B (en) * 2015-06-10 2017-12-21 宸鴻科技(廈門)有限公司 Pressure-sensitive input equipment
TWI686594B (en) * 2016-09-14 2020-03-01 大陸商宸鴻科技(廈門)有限公司 Pressure sensing module and pressure sensing touch control system
CN106405909B (en) * 2016-09-30 2019-08-13 上海天马微电子有限公司 Flexible display apparatus, flexible display panels and its driving method
CN106405909A (en) * 2016-09-30 2017-02-15 上海天马微电子有限公司 Flexible display device, flexible display panel and driving method thereof
TWI585654B (en) * 2016-11-02 2017-06-01 友達光電股份有限公司 Touch sensing apparatus
CN106354342B (en) * 2016-11-02 2019-03-22 友达光电股份有限公司 Touch sensing device
CN106354342A (en) * 2016-11-02 2017-01-25 友达光电股份有限公司 Touch control sensing device
CN108572757A (en) * 2017-03-07 2018-09-25 京东方科技集团股份有限公司 Touch panel and preparation method thereof, touch control display apparatus
CN108572757B (en) * 2017-03-07 2020-11-20 京东方科技集团股份有限公司 Touch panel, manufacturing method thereof and touch display device

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