CN111367429B - Touch display panel - Google Patents
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- CN111367429B CN111367429B CN202010111209.0A CN202010111209A CN111367429B CN 111367429 B CN111367429 B CN 111367429B CN 202010111209 A CN202010111209 A CN 202010111209A CN 111367429 B CN111367429 B CN 111367429B
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- electromagnetic shielding
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
- Position Input By Displaying (AREA)
Abstract
A touch display panel comprises a first substrate, a second substrate, a capacitive sensor layer and a shielding layer. One side of the first substrate is provided with a light-emitting component array; the second substrate is parallel to the first substrate and has a gap with the first substrate; the capacitive sensor layer is arranged on one side of the second substrate facing the first substrate, and comprises a plurality of capacitive sensing components; the shielding layer is arranged between the capacitive sensor layer and the second substrate, and is provided with an electromagnetic shielding pattern, and the electromagnetic shielding pattern shields a plurality of capacitive sensing components of the part. Among the plurality of capacitive sensing elements, the one shielded by the electromagnetic shielding pattern is defined as a pressure sensing unit, and the one not shielded by the electromagnetic shielding pattern is defined as a touch sensing unit.
Description
Technical Field
The present invention relates to a touch display panel sensing pressure using a pressure sensing unit and a touch sensing unit.
Background
Generally, touch display panels are generally classified into three types regarding the location of a touch sensor: (1) within a light emitting cell (In-cell): the touch sensor is positioned in the light-emitting unit, wherein the light-emitting unit comprises two glass substrates and an organic light-emitting diode positioned between the two glass substrates; specifically, the touch sensor is located between the upper glass substrate and the organic light emitting diode. (2) On a light emitting cell: the touch sensor is positioned on the light emitting unit, that is, the touch sensor is positioned on the upper glass substrate and contacts the upper glass substrate. (3) Out of light emitting cell (Out-cell): the touch sensor is located outside the light emitting unit, that is, the touch sensor is located above the upper glass substrate without contacting the upper glass substrate.
In the case of a touch display panel in which the touch sensor is located in the light emitting unit, the touch sensor is located at a position far from the finger of the user, and is close to the display surface of the touch display panel, so that the touch sensor has a problem of false alarm and no touch during pressure detection, and is susceptible to noise on the display surface of the touch display panel. Therefore, how to solve the above-mentioned symptom node becomes a problem to be solved.
In view of the foregoing, the present inventors have conceived and devised a touch display panel to improve the drawbacks of the prior art and further enhance the industrial implementation and utilization.
Disclosure of Invention
In view of the above-mentioned problems, an object of the present invention is to provide a touch display panel for solving the problems of the prior art.
In view of the above, the present invention provides a touch display panel, which includes a first substrate, a second substrate, a capacitive sensor layer, and a shielding layer. One side of the first substrate is provided with a light-emitting component array; the second substrate is parallel to the first substrate and has a gap with the first substrate; the capacitive sensor layer is arranged on one side of the second substrate facing the first substrate, and comprises a plurality of capacitive sensing components; the shielding layer is arranged between the capacitive sensor layer and the second substrate, and is provided with an electromagnetic shielding pattern, and the electromagnetic shielding pattern shields a plurality of capacitive sensing components of the part. Among the plurality of capacitive sensing elements, the one shielded by the electromagnetic shielding pattern is defined as a pressure sensing unit, and the one not shielded by the electromagnetic shielding pattern is defined as a touch sensing unit. The pressure sensing unit and the touch sensing unit are used for judging whether the touch type touch screen is in a touch state or a falling state.
Preferably, the capacitive sensor layer includes a first insulating layer, and the plurality of capacitive sensing elements are disposed in the first insulating layer.
Preferably, the shielding layer includes a second insulating layer, and the electromagnetic shielding pattern is disposed in the second insulating layer.
Preferably, the electromagnetic shielding pattern is in a grid-like structure with square or circular distribution.
Preferably, the plurality of pressure sensing units are distributed among the plurality of touch sensing units.
Preferably, the light emitting device array comprises a plurality of light emitting units, each of the plurality of light emitting units comprises a light emitting body, two layers of pixel defining layers, two gap columns and a cathode, the two layers of pixel defining layers are arranged on two sides of the light emitting body based on the light emitting body, the two gap columns are respectively arranged on the two layers of pixel defining layers, and the cathode covers the light emitting body, the two layers of pixel defining layers and the two gap columns.
Preferably, the touch display panel of the present invention further includes a control circuit disposed under the first substrate and electrically connected to the cathode, the plurality of capacitive sensing elements and the electromagnetic shielding pattern.
Preferably, when the touch sensing unit detects touch, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is lower than a threshold value, and the control circuit sends out a touch signal according to the first signal. Through the mechanism, the invention can judge the touch condition of the user.
Preferably, when the pressure sensing unit detects pressure, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is higher than a threshold value to transmit a second signal back to the control circuit, and the control circuit sends a re-pressing signal according to the first signal and the second signal. Through the mechanism, whether the invention is in a falling state or not can be judged.
In view of the above, the present invention provides a touch display panel, which includes a first substrate, a second substrate, a first capacitive sensor layer, and a second capacitive sensor layer. One side of the first substrate is provided with a light-emitting component array; the second substrate is arranged parallel to the first substrate and has a gap with the first substrate; the first capacitive sensor layer is arranged on one side of the second substrate facing the first substrate, and comprises a plurality of first capacitive sensing components; the second capacitive sensor layer is disposed between the second substrate and the first capacitive sensor layer, and the second capacitive sensor layer includes a plurality of second capacitive sensing elements and an electromagnetic shielding pattern that shields the plurality of first capacitive sensing elements. The first capacitive sensing components are defined as pressure sensing units, and the second capacitive sensing components are defined as touch sensing units. The pressure sensing unit and the touch sensing unit are used for judging whether the touch type touch screen is in a touch state or a falling state.
Preferably, the first capacitive sensor layer includes a first insulating layer, and the plurality of first capacitive sensing elements are disposed in the first insulating layer.
Preferably, the second capacitive sensor layer includes a second insulating layer, and the electromagnetic shielding pattern is disposed in the second insulating layer.
Preferably, the electromagnetic shielding pattern is in a grid-like structure with square or circular distribution.
Preferably, the plurality of pressure sensing units are distributed among the plurality of touch sensing units.
Preferably, the light emitting device array comprises a plurality of light emitting units, each of the plurality of light emitting units comprises a light emitting body, two layers of pixel defining layers, two gap columns and a cathode, the two layers of pixel defining layers are arranged on two sides of the light emitting body based on the light emitting body, the two gap columns are respectively arranged on the two layers of pixel defining layers, and the cathode covers the light emitting body, the two layers of pixel defining layers and the two gap columns.
Preferably, the touch display panel of the present invention further includes a control circuit disposed under the first substrate and electrically connected to the cathode, the plurality of first capacitive sensing elements, the plurality of second capacitive sensing elements, and the electromagnetic shielding pattern.
Preferably, when the touch sensing unit detects touch, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is lower than a threshold value, and the control circuit sends out a touch signal according to the first signal. Through the mechanism, the invention can judge the touch condition of the user.
Preferably, when the pressure sensing unit detects pressure, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is higher than a threshold value to transmit a second signal back to the control circuit, and the control circuit sends a re-pressing signal according to the first signal and the second signal. Through the mechanism, whether the invention is in a falling state or not can be judged.
In the touch display panel, the touch or falling state is judged by the pressure sensing unit and the touch sensing unit.
Drawings
Fig. 1 is a configuration diagram of a touch display panel according to a first embodiment of the invention.
Fig. 2 is a wiring diagram of an electromagnetic shielding pattern of a touch display panel according to a first embodiment of the present invention.
Fig. 3 is a block diagram of a pressure sensing unit and a touch sensing unit of a touch display panel according to a first embodiment of the present invention.
Fig. 4 is a configuration diagram of a touch display panel according to a second embodiment of the invention.
Fig. 5A is a diagram of a first embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
Fig. 5B is a diagram of a second embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
Fig. 5C is a diagram of a third embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
Fig. 6A is a diagram of a fourth embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
Fig. 6B is a diagram of a fifth embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
Fig. 6C is a diagram of a sixth embodiment of an electromagnetic shielding pattern of a touch display panel according to the present invention.
In the figure:
10: first substrate
20: light-emitting unit
21: luminous body
22: pixel definition layer
23: gap column
24: cathode electrode
30: capacitive sensor layer
31: capacitive sensing assembly
32. 62: a first insulating layer
40: shielding layer
41. 71: electromagnetic shielding pattern
42. 72: second insulating layer
50: second substrate
60: first capacitive sensor layer
61: first capacitive sensing assembly
70: second capacitive sensor layer
73: second capacitive sensing component
PCB: control circuit
PS: pressure sensing unit
TS: touch sensing unit
Detailed Description
The advantages, features and technical approaches to the present invention will be more readily understood by reference to the following detailed description of exemplary embodiments and the accompanying drawings, and the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed in a manner that will fully and completely convey the scope of the invention to those skilled in the art, and the invention will be defined only by the appended claims.
It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Accordingly, the "first component," "first part," "first region," "first layer," and/or "first portion" discussed below may be referred to as a "second component," "second part," "second region," "second layer," and/or "second portion," without departing from the spirit and teachings of the present invention.
Furthermore, the terms "comprises," "comprising," and/or "includes" specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a definition that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Fig. 1 to 3 are a configuration diagram of a first embodiment of a touch display panel of the present invention, a trace diagram of an electromagnetic shielding pattern of the first embodiment of the touch display panel of the present invention, and a structure diagram of a pressure sensing unit and a touch sensing unit of the first embodiment of the touch display panel of the present invention, respectively. As shown in fig. 1 to 3, the present invention provides a touch display panel, which includes a first substrate 10, a second substrate 50, a capacitive sensor layer 30, and a shielding layer 40. One side of the first substrate 10 is provided with a light emitting component array; the second substrate 50 is disposed parallel to the first substrate 10 with a gap between the second substrate and the first substrate 10; the capacitive sensor layer 30 is disposed on a side of the second substrate 50 facing the first substrate 10, and the capacitive sensor layer 30 includes a plurality of capacitive sensing components 31; the shielding layer 40 is disposed between the capacitive sensor layer 30 and the second substrate 50, and the shielding layer 40 has an electromagnetic shielding pattern 41, and the electromagnetic shielding pattern 41 shields a portion of the capacitive sensing element 31. Among the plurality of capacitive sensing elements 31, the one shielded by the electromagnetic shielding pattern 41 is defined as a pressure sensing unit PS, and the one not shielded by the electromagnetic shielding pattern 41 is defined as a touch sensing unit TS. The pressure sensing unit PS and the touch sensing unit TS are used for judging that the touch or falling state is achieved.
In addition, the capacitive sensor layer 30 includes a first insulating layer 32, and a plurality of capacitive sensing elements 31 are disposed in the first insulating layer 32, i.e. each capacitive sensing element 31 is covered by the first insulating layer 32; the shielding layer 40 includes a second insulating layer 42, and the electromagnetic shielding pattern 41 is disposed in the second insulating layer 42, that is, the electromagnetic shielding pattern 41 is covered by the second insulating layer 42. In this embodiment, since the traces of the electromagnetic shielding pattern 41 are not shielded by the electromagnetic shielding pattern 41, the pressure sensing units PS and the touch sensing units TS may be disposed alternately. That is, the plurality of pressure sensing units PS may be distributed among the plurality of touch sensing units TS such that each pressure sensing unit PS is surrounded by the plurality of touch sensing units TS.
Furthermore, the vertical projection of the electromagnetic shielding pattern 41 of each pressure sensing unit PS on the second substrate 50 surrounds the vertical projection of the capacitance sensing component 31 of each pressure sensing unit PS on the second substrate 50, that is, the area of the electromagnetic shielding pattern 41 of each pressure sensing unit PS is larger than the area of the capacitance sensing component 31 of each pressure sensing unit PS; alternatively, the vertical projection of the electromagnetic shielding pattern 41 of each pressure sensing unit PS on the second substrate 50 coincides with the vertical projection of the capacitance sensing component 31 of each pressure sensing unit PS on the second substrate 50, that is, the area of the electromagnetic shielding pattern 41 of each pressure sensing unit PS is equal to the area of the capacitance sensing component 31 of each pressure sensing unit PS. In addition, corresponding to the arrangement of the light emitting component array, the pressure sensing units PS and the touch sensing units TS are distributed in an array.
Here, the light emitting element array composition is described as follows: the light emitting assembly array comprises a plurality of light emitting units 20, and each light emitting unit 20 is arranged in an array form; each light emitting unit 20 includes a light emitter 21, two pixel defining layers 22, two gap pillars 23, and a cathode 24, wherein the two pixel defining layers 22 are disposed on two sides of the light emitter 21 with respect to the light emitter 21, each pixel defining layer PDL defines a display area of the light emitter 21, the two gap pillars 23 are disposed on the two pixel defining layers 22, and the cathode 24 covers the light emitter 21, the two pixel defining layers 22, and the two gap pillars 23.
Preferably, the line width of the electromagnetic shielding pattern 41 of each pressure sensing unit PS in the x-axis is greater than that of each capacitive sensing element 31 in the x-axis, and the line length of the electromagnetic shielding pattern 41 of each pressure sensing unit PS in the y-axis is greater than that of each capacitive sensing element 31 in the y-axis, so as to ensure the electromagnetic shielding effect. And the length of each capacitive sensing element 31 and the gap post 23 in the x-axis and the y-axis may be greater than 5 μm.
In addition, the touch display panel of the present invention further includes a control circuit PCB disposed under the first substrate 10 and electrically connected to the cathode 24, the plurality of capacitive sensing elements 31, and the electromagnetic shielding pattern 32. Here, the control circuit PCB will be described with table 1 to determine that the touch display panel of the present invention is in a touch condition or a falling condition as follows: (1) When the touch sensing unit TS detects a touch, the capacitance variation between the touch sensing unit TS and the cathode 24 changes to send a first signal back to the control circuit PCB, the capacitance variation between the pressure sensing unit PS and the cathode 24 is lower than a threshold (typically, the capacitance variation between the pressure sensing unit PS and the cathode 24 is 0 during the touch detection), and the control circuit PCB sends a touch signal according to the first signal, that is, the control circuit PCB determines that the touch display panel of the present invention is in a state of being touched by a user, and the control circuit PCB detects and determines a position touched by the user. (2) When the pressure sensing unit PS detects pressure, the capacitance variation between the touch sensing unit TS and the cathode 24 changes to send a first signal back to the control circuit PCB, and the capacitance variation between the pressure sensing unit PS and the cathode 24 is higher than a threshold value to send a second signal back to the control circuit PCB, and the control circuit PCB sends a re-pressing signal according to the first signal and the second signal, that is, the control circuit PCB determines that the touch display panel of the present invention is in a falling state, and the control circuit PCB re-corrects the baseline (baseline) or determines as a re-pressing gesture (Force Touch Gesture). The threshold value is changed when the touch display panel is in a falling state, so that the value of the threshold value is not limited.
TABLE 1
It should be noted that, the baseline is an average line of the first signal received in the previous time, the first signal received in the current time is connected into a signal line, and the signal line is subtracted from the average line to determine whether to update the baseline; the heavy pressure gesture is information that the control circuit PCB judges that the touch display panel is in a falling/heavy pressure state, the control circuit PCB can transmit the heavy pressure gesture back to a host end (host) device, and the host end device executes the whole machine according to the heavy pressure gesture.
It should be mentioned that the control circuit PCB can be replaced by a battery and a microprocessor can be used to determine the drop/weight. Specifically, the battery is used for providing electric energy to the touch display panel of the invention, the microprocessor is electrically connected with the pressure sensing unit PS and the touch sensing unit TS, and the microprocessor judges the condition of the touch display panel of the invention that the finger touches or falls/is pressed heavily according to the first signal and the second signal transmitted by the pressure sensing unit PS and the touch sensing unit TS.
Fig. 4 is a configuration diagram of a touch display panel according to a second embodiment of the invention. In this embodiment, the configuration of the components with the same reference numerals is similar to that described above, and the description thereof will not be repeated here.
As shown in fig. 4, the second embodiment of the present invention differs from the first embodiment in the first capacitive sensor layer 60 and the second capacitive sensor layer 70. In detail, the first capacitive sensor layer 60 is disposed on a side of the second substrate 50 facing the first substrate 10, and the first capacitive sensor layer 60 includes a plurality of first capacitive sensing elements 61 and a first insulating layer 62; the second capacitive sensor layer 70 is disposed between the second substrate 50 and the first capacitive sensor layer 60, and the second capacitive sensor layer 70 includes a plurality of second capacitive sensing elements 73, a second insulating layer 72, and an electromagnetic shielding pattern 71, wherein the electromagnetic shielding pattern 71 shields the plurality of first capacitive sensing elements 61. Wherein, each of the plurality of first capacitive sensing elements 61 is defined as a pressure sensing unit PS, and each of the plurality of second capacitive sensing elements 73 is defined as a touch sensing unit TS.
In addition, the plurality of first capacitive sensing elements 61 are disposed in the first insulating layer 62, that is, each of the first capacitive sensing elements 61 is covered by the first insulating layer 62; the electromagnetic shielding pattern 71 and the plurality of second capacitive sensing elements 73 are disposed in the second insulating layer 72, that is, the electromagnetic shielding pattern 71 and the plurality of second capacitive sensing elements 73 are covered by the second insulating layer 72. The pressure sensing units PS and the touch sensing units TS are disposed in a staggered manner due to the routing of the electromagnetic shielding pattern 71, so that the pressure sensing units PS are distributed among the touch sensing units TS, that is, each pressure sensing unit PS is surrounded by the touch sensing units TS.
Furthermore, the vertical projection of the electromagnetic shielding pattern 71 of each pressure sensing unit PS on the second substrate 50 surrounds the vertical projection of the first capacitance sensing component 61 of each pressure sensing unit PS on the second substrate 50, that is, the area of the electromagnetic shielding pattern 71 of each pressure sensing unit PS is larger than the area of the first capacitance sensing component 61 of each pressure sensing unit PS; alternatively, the vertical projection of the electromagnetic shielding pattern 71 of each pressure sensing unit PS on the second substrate 50 coincides with the vertical projection of the first capacitance sensing element 61 of each pressure sensing unit PS on the second substrate 50, that is, the area of the electromagnetic shielding pattern 71 of each pressure sensing unit PS is equal to the area of the first capacitance sensing element 61 of each pressure sensing unit PS.
The first substrate 10 and the second substrate 50 may include, for example, a glass substrate, a quartz substrate, a substrate formed of a polymer resin, or a flexible substrate formed of a flexible material such as polyimide. The materials of the polymer resin may include Polyethersulfone (PES), polyacrylate (PA), polyarylate (PAT), polyetherimide (PEI), polyethylene 2,6 naphthalate (polyethylene naphthalate, PEN), polyethylene terephthalate (polyethylene terephthalate, PET), polyphenylene sulfide (polyphenylene sulfide,PPS), polyarylates (poly-amides), poly-imides (PI), polycarbonates (PC), cellulose triacetates (cellulose triacetate, CAT or TAC), cellulose acetate propionate (cellulose acetate propionate, CAP), and combinations thereof; the materials of first insulating layers 32 and 62, second insulating layers 42 and 71, and pixel defining layer 22 may include, for example, silicon oxide (SiO) x ) Silicon nitride (SiN) x ) Silicon oxynitride (SiON), silicon carbonitride (SiCN), silicon oxycarbide (SiOC) or aluminum oxide (AlO) x ) And combinations thereof; the material of the gap pillar can be positive photoresist or negative photoresist material; the materials of the cathode 24 and the electromagnetic shielding patterns 41 and 71 may include at least one of indium (In), tin (Sn), aluminum (Al), gold (Au), platinum (Pt), indium (In), zinc (Zn), germanium (Ge), silver (Ag), lead (Pb), palladium (Pd), copper (Cu), beryllium (AuBe), beryllium (BeGe), nickel (Ni), lead tin (PbSn), chromium (Cr), zinc (AuZn), titanium (Ti), tungsten (W), and titanium Tungsten (TiW), for example; the light-emitting body 21 is an organic light-emitting diode, and the material of the organic light-emitting diode capable of emitting red light, blue light or green light includes 4- (dicyanometric-phenyl) -2-tert-butyl-6- (1, 7-tetramethyljulolidin-4-yl-vinyl) -4H-pyran, 4- (dicyanometric-phenyl) -2-tert-butyl-6- (1, 7-tetramethyljulolidin-4-yl-vinyl) -4H-pyran (DCJTB), polycyclic aromatic hydrocarbon (Polycyclic aromatic hydrocarbon (PAH), quinacridone derivative (Quinacridone), 1H-pyrazolo [3, 4-b)]Green light derivatives of quinoxalines, diarylanthracene derivatives (Pyrene), pyrene derivatives (Pyrene), pt, ir-centered metal derivative chelates (Tris [ 2-phenylpyridinot-C2, N)]irid ium(III)(Ir(ppy)3)、Bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III)(Flrpic)、Platinum octaethylporphyrin(PtOEP)、Tris(dibenzoylmeth ane)phenanthroline europium(III)(Eu(dbm)3(Phen))、bis(2-(2′-benzo[4,5-α]thienyl)pyridinato-N,C3′)iridium(acetylacetonate)(Btp2Ir(acac))、Tris(1-phenyl pyrazolato)iridium(Ir(ppz)3)、Bis(2,4-difluorop henylpyridinato)(5-(pyridin-2-yl)-1H-tetrazolate)iridium(III)(FIrN4)、mer-Tris(1-phenyl-3-methy limidazolin-2-ylidene-C,C(2)'iridium(III)(mer-Ir (pmi) 3)). The foregoing materials are only examples, and of course, other preferred materials are also possible and are not limited to the scope of the invention.
Referring to fig. 5A to 5C, a first embodiment of an electrical shielding pattern of a touch display panel of the present invention, a second embodiment of an electrical shielding pattern of a touch display panel of the present invention, and a third embodiment of an electrical shielding pattern of a touch display panel of the present invention are shown. In a circular touch display panel, in one embodiment, as shown in fig. 5A, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be square grid structures. In another embodiment, as shown in fig. 5B, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be in a circular distribution grid structure. In another embodiment, as shown in fig. 5C, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be distributed in a cross shape.
Referring to fig. 6A to 6C, a fourth embodiment of the electrical shielding pattern of the touch display panel of the present invention, a fifth embodiment of the electrical shielding pattern of the touch display panel of the present invention, and a sixth embodiment of the electrical shielding pattern of the touch display panel of the present invention are shown. In a square touch display panel, in one embodiment, as shown in fig. 6A, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be square grid structures. In another embodiment, as shown in fig. 6B, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be square grid-shaped structures. In another embodiment, as shown in fig. 5C, the electromagnetic shielding patterns 41 and 71 of the pressure sensing unit PS may be distributed in a cross shape.
In view of the foregoing, the touch display panel of the present invention determines that the touch display panel is in a touch or falling state through the pressure sensing unit PS and the touch sensing unit TS. In summary, the touch display panel of the present invention has the advantages described above, without misinformation and touch problems.
The foregoing is by way of example only and is not intended as limiting. Any equivalent modifications or variations to the present invention without departing from the spirit and scope of the present invention are intended to be included in the scope of the following claims.
Claims (12)
1. A touch display panel, comprising:
a first substrate, one side of which is provided with a luminous component array;
a second substrate parallel to the first substrate and having a gap with the first substrate;
a capacitance sensor layer arranged on one side of the second substrate facing the first substrate, the capacitance sensor layer comprising a plurality of capacitance sensing components; and
a shielding layer disposed between the capacitive sensor layer and the second substrate, the shielding layer having an electromagnetic shielding pattern shielding the plurality of capacitive sensing elements;
wherein, in each of the plurality of capacitive sensing elements, the one shielded by the electromagnetic shielding pattern is defined as a pressure sensing unit, and the one not shielded by the electromagnetic shielding pattern is defined as a touch sensing unit;
the light-emitting component array comprises a plurality of light-emitting units, each light-emitting unit comprises a light-emitting body, two pixel definition layers, two gap columns and a cathode, wherein the two pixel definition layers are arranged on two sides of the light-emitting body based on the light-emitting body, the two gap columns are respectively arranged on the two pixel definition layers, and the cathode covers the light-emitting body, the two pixel definition layers and the two gap columns;
the control circuit is arranged below the first substrate and is electrically connected with the cathode, the plurality of capacitance sensing components and the electromagnetic shielding pattern;
when the touch sensing unit detects touch, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is lower than a threshold value, and the control circuit sends out a touch signal according to the first signal.
2. The touch display panel of claim 1, wherein the capacitive sensor layer comprises a first insulating layer, and the plurality of capacitive sensing elements are disposed in the first insulating layer.
3. The touch display panel of claim 1, wherein the shielding layer comprises a second insulating layer, and the electromagnetic shielding pattern is disposed in the second insulating layer.
4. The touch display panel of claim 1, wherein the electromagnetic shielding pattern has a grid-like structure with square or circular distribution.
5. The touch display panel of claim 1, wherein a plurality of the pressure sensing units are distributed among a plurality of the touch sensing units.
6. The touch display panel of claim 1, wherein when the pressure sensing unit detects pressure, the capacitance variation between the touch sensing unit and the cathode changes to send a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is higher than a threshold value to send a second signal back to the control circuit, and the control circuit sends a high-pressure signal according to the first signal and the second signal.
7. A touch display panel, comprising:
a first substrate, one side of which is provided with a luminous component array;
a second substrate disposed parallel to the first substrate with a gap therebetween;
the first capacitive sensor layer is arranged on one side of the second substrate facing the first substrate, and comprises a plurality of first capacitive sensing components; and
the second capacitive sensor layer is arranged between the second substrate and the first capacitive sensor layer, and comprises a plurality of second capacitive sensing components and an electromagnetic shielding pattern, wherein the electromagnetic shielding pattern shields the plurality of first capacitive sensing components;
wherein each of the plurality of first capacitive sensing elements is defined as a pressure sensing unit, and each of the plurality of second capacitive sensing elements is defined as a touch sensing unit;
the light-emitting component array comprises a plurality of light-emitting units, each light-emitting unit comprises a light-emitting body, two pixel definition layers, two gap columns and a cathode, wherein the two pixel definition layers are arranged on two sides of the light-emitting body based on the light-emitting body, the two gap columns are respectively arranged on the two pixel definition layers, and the cathode covers the light-emitting body, the two pixel definition layers and the two gap columns;
the control circuit is arranged under the first substrate and is electrically connected with the cathode, the plurality of first capacitance sensing components, the plurality of second capacitance sensing components and the electromagnetic shielding pattern;
when the touch sensing unit detects touch, the capacitance variation between the touch sensing unit and the cathode changes to transmit a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is lower than a threshold value, and the control circuit sends out a touch signal according to the first signal.
8. The touch display panel of claim 7, wherein the first capacitive sensor layer comprises a first insulating layer, and the plurality of first capacitive sensing elements are disposed in the first insulating layer.
9. The touch display panel of claim 7, wherein the second capacitive sensor layer comprises a second insulating layer, and the electromagnetic shielding pattern is disposed in the second insulating layer.
10. The touch display panel of claim 7, wherein the electromagnetic shielding pattern has a grid-like structure with square or circular distribution.
11. The touch display panel of claim 7, wherein the plurality of pressure sensing units are distributed among the plurality of touch sensing units.
12. The touch display panel of claim 7, wherein when the pressure sensing unit detects pressure, the capacitance variation between the touch sensing unit and the cathode changes to send a first signal back to the control circuit, the capacitance variation between the pressure sensing unit and the cathode is higher than a threshold value to send a second signal back to the control circuit, and the control circuit sends a high-pressure signal according to the first signal and the second signal.
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