CN111966242B - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
- Publication number
- CN111966242B CN111966242B CN202010826581.XA CN202010826581A CN111966242B CN 111966242 B CN111966242 B CN 111966242B CN 202010826581 A CN202010826581 A CN 202010826581A CN 111966242 B CN111966242 B CN 111966242B
- Authority
- CN
- China
- Prior art keywords
- coil
- touch
- receiving
- transmitting
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 84
- 230000006698 induction Effects 0.000 claims description 17
- 239000010409 thin film Substances 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The disclosure relates to a touch display panel and a display device, and relates to the technical field of touch. The touch display panel comprises a display substrate, a plurality of first touch components, a plurality of second touch components and a control component, wherein the display substrate is provided with a display area and a frame area surrounding the display area; the first touch control components are arranged in the frame area and are arranged at intervals along the column direction; each first touch control component comprises first transmitting units and first receiving units which are distributed on two sides of the display area along the row direction; the second touch control components are arranged in the frame area and are arranged at intervals along the row direction; each second touch control component comprises second transmitting units and second receiving units which are distributed on two sides of the display area along the column direction; the control component is used for controlling the first transmitting unit and the second transmitting unit to transmit ultrasonic waves and determining the position of the touch area according to the ultrasonic waves, received by the first receiving unit and the second receiving unit, reflected from the finger of the touch area; the frequencies of the ultrasonic waves emitted by the first emitting unit and the second emitting unit are different.
Description
Technical Field
The disclosure relates to the technical field of touch control, in particular to a touch control display panel and a display device.
Background
At present, touch technology has been widely applied to various electronic devices for realizing man-machine interaction. However, in the related art, a user needs to directly contact the touch display panel with a finger or a touch bar to determine the position of the touch area in order to implement a touch operation.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The disclosure aims to overcome the defects of the prior art, and provides a touch display panel and a display device, which can realize suspended touch.
According to one aspect of the present disclosure, there is provided a touch display panel including:
a display substrate having a display region and a frame region surrounding the display region;
the plurality of first touch components are arranged in the frame area and are arranged at intervals along the column direction; each first touch control component comprises a first transmitting unit and a first receiving unit which are distributed on two sides of the display area along the row direction;
the plurality of second touch components are arranged in the frame area and are arranged at intervals along the row direction; each second touch control component comprises a second transmitting unit and a second receiving unit which are distributed on two sides of the display area along the column direction;
the control component is used for controlling the first transmitting unit and the second transmitting unit to transmit ultrasonic waves and determining the position of the touch area according to the ultrasonic waves, received by the first receiving unit and the second receiving unit, of the finger reflected from the touch area; the frequencies of the ultrasonic waves emitted by the first emitting unit and the second emitting unit are different;
the positions of the touch areas include positions of the touch areas in the row direction, the column direction, and a direction perpendicular to the display substrate.
In one exemplary embodiment of the present disclosure, the first transmitting unit includes a first transmitting magnetic member and a first transmitting coil distributed in a direction perpendicular to the display substrate; the first receiving unit comprises first receiving magnetic pieces and first receiving coils which are distributed along the direction perpendicular to the display substrate;
the first transmitting coil is positioned in the magnetic field generated by the first transmitting magnetic piece; the first receiving coil is positioned in the magnetic field generated by the first receiving magnetic piece;
the control component is used for applying alternating current signals to the first transmitting coil and determining the position of the touch area in the column direction according to the induction signals of the first receiving coil.
In one exemplary embodiment of the present disclosure, the second transmitting unit includes a second transmitting magnetic member and a second transmitting coil distributed in a direction perpendicular to the display substrate; the second receiving unit comprises second receiving magnetic pieces and second receiving coils which are distributed along the direction vertical to the display substrate;
the second transmitting coil is positioned in the magnetic field generated by the second transmitting magnetic piece; the second receiving coil is positioned in the magnetic field generated by the second receiving magnetic piece;
the control component is used for applying alternating current signals to the second transmitting coil and determining the position of the touch control area in the row direction according to the induction signals of the second receiving coil.
In an exemplary embodiment of the present disclosure, the control assembly is configured to determine a position of the touch area in a direction perpendicular to the display substrate according to an induction signal of at least one of the first receiving coil and the second receiving coil.
In one exemplary embodiment of the present disclosure, the first transmitting coil, the first receiving coil, the second transmitting coil, and the second receiving coil each include a multi-layered series-connected coil body, each of which has a ring-shaped structure with a notch.
In one exemplary embodiment of the present disclosure, the display substrate includes:
the driving backboard comprises a pixel circuit area positioned in the display area and an edge area positioned in the frame area;
the light-emitting device layer comprises a first electrode layer, a light-emitting layer and a second electrode layer which are sequentially laminated along the direction deviating from the driving backboard; orthographic projection of the light-emitting device layer on the driving backboard is positioned in a range surrounded by the edge area;
the driving backboard is provided with slopes corresponding to the area of each coil body; the coil bodies are arranged on the slopes in a one-to-one correspondence manner and are arranged on the same layer as the first electrode layer.
In one exemplary embodiment of the present disclosure, the display substrate includes:
the driving backboard comprises a pixel circuit area positioned in the display area and an edge area positioned in the frame area; the driving backboard comprises a substrate and at least one thin film transistor which is arranged on the substrate and is positioned in the pixel circuit area, the thin film transistor comprises a dielectric layer and a source-drain layer which is positioned on the surface of the dielectric layer, which is away from the substrate, and the source-drain layer comprises a source electrode and a drain electrode;
the light-emitting device layer is arranged on one side of the driving backboard, and orthographic projection of the light-emitting device layer on the driving backboard is positioned in a range surrounded by the edge area;
the dielectric layer is provided with slopes corresponding to the areas of each coil body; the coil bodies are arranged on the slopes in a one-to-one correspondence manner and are arranged on the same layer as the source drain layer.
In an exemplary embodiment of the present disclosure, each of the first emitting magnetic pieces is the same magnetic piece; each first receiving magnetic piece is the same magnetic piece; each second transmitting magnetic piece is the same magnetic piece; each of the second receiving magnetic pieces is the same magnetic piece.
In one exemplary embodiment of the present disclosure, the number of coil bodies of the first transmitting coil and the first receiving coil is the same and is a first number;
the number of coil bodies of the second transmitting coil and the second receiving coil is the same, and the number of coil bodies is a second number;
the first number is different from the second number.
According to an aspect of the present disclosure, there is provided a display device including the touch display panel described in any one of the above.
The touch display panel and the display device can realize touch operation under the condition that the finger is not contacted with the display substrate, namely, suspension touch control is realized. Specifically, during touch, the finger is positioned in a touch area above the display substrate, ultrasonic waves emitted by the first emitting unit and the second emitting unit can be reflected, the first receiving unit and the second receiving unit receive the reflected ultrasonic waves, the position of the touch area in the row direction and the column direction can be determined according to the received ultrasonic waves, and the position of the touch area in the direction perpendicular to the display substrate can be determined, so that the spatial position of one or more fingers relative to the display substrate is determined, and multi-point suspension touch is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 is a top view of an embodiment of a touch display panel of the present disclosure.
FIG. 2 is a schematic cross-sectional E-E view of FIG. 1.
FIG. 3 is a schematic cross-sectional view of one F-F of FIG. 1.
FIG. 4 is another E-E cross-sectional schematic of FIG. 1.
FIG. 5 is another E-E cross-sectional schematic of FIG. 1.
Fig. 6 is a schematic diagram of a first transmitting coil in an embodiment of a touch display panel of the disclosure.
Fig. 7 is a schematic block diagram of a touch display panel according to an embodiment of the disclosure.
Reference numerals illustrate:
1. a display substrate; 11. a drive back plate; 101. a substrate; 102. an active layer; 103. a gate insulating layer; 104. a gate; 105. a dielectric layer; 106. a flat layer; 107. a source electrode; 108. a drain electrode; 12. a light emitting device layer; 121. a first electrode layer; 122. a pixel definition layer; 123. a light emitting layer; 124. a second electrode layer; 13. a ramp; 2. a first touch assembly; 21. a first emitting unit; 211. a first transmitting coil; 212. a first transmitting magnetic member; 22. a first receiving unit; 221. a first receiving coil; 222. a first receiving magnetic member; 3. a second touch assembly; 31. a second transmitting unit; 311. a second transmitting coil; 312. a second transmitting magnetic member; 32. a second receiving unit; 321. a second receiving coil; 322. a second receiving magnetic member; 200. a coil body; 4. and a control assembly.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" are used merely as labels, and do not limit the number of their objects.
The disclosed embodiments provide a touch display panel, as shown in fig. 1 and 7, which may include a display substrate 1, a first touch component 2, and a second touch component 3, wherein:
the display substrate 1 has a display area a and a frame area B surrounding the display area a;
the number of the first touch components 2 is multiple, and the first touch components 2 are arranged in the frame area B at intervals along the column direction; each first touch assembly 2 includes a first transmitting unit 21 and a first receiving unit 22 distributed on both sides of the display area a along the row direction.
The number of the second touch components 3 is multiple, and the second touch components 3 are arranged in the frame area B at intervals along the row direction; each second touch assembly 3 includes a second transmitting unit 31 and a second receiving unit 32 distributed on both sides of the display area a along the column direction.
The control component 4 is used for controlling the first transmitting unit 21 and the second transmitting unit 31 to transmit ultrasonic waves, and determining the position of the touch area according to the ultrasonic waves, reflected from the finger of the touch area, received by the first receiving unit 22 and the second receiving unit 32; the frequencies of the ultrasonic waves emitted by the first and second emitting units 21 and 31 are different.
The positions of the touch areas include positions of the touch areas in the row direction, the column direction, and the direction perpendicular to the display substrate 1.
The touch display panel of the embodiment of the disclosure can realize touch operation, namely suspension touch, under the condition that a finger contacts with the display substrate 1 with a distance. Specifically, during touch, the finger may be located in a touch area on the light emitting side of the display substrate, and may reflect the ultrasonic waves emitted by the first emitting unit 21 and the second emitting unit 31, and the first receiving unit 22 and the second receiving unit 32 may receive the reflected ultrasonic waves, so that not only the position of the touch area in the row direction and the column direction, but also the position of the touch area in the direction perpendicular to the display substrate 1 may be determined according to the received ultrasonic waves, thereby determining the spatial position of one or more fingers relative to the display substrate 1, and realizing multi-point suspension touch.
In the embodiment of the present disclosure, the column direction and the row direction are used to indicate only two directions perpendicular to each other, and the row direction is not limited to the horizontal direction and the column direction is not limited to the vertical direction. Those skilled in the art will appreciate that the actual orientation of the column and row directions will change after the touch display panel is rotated. In fig. 1, the X-direction schematically shows the row direction and the Y-direction schematically shows the column direction.
The following describes each portion of the touch display panel according to the embodiment of the present disclosure in detail:
as shown in fig. 1, the display substrate 1 may have a display area a and a frame area B, wherein at least a partial area of the display area a is used to emit light to one side, that is, to the light emitting side, to display an image. The frame area B surrounds the display area A, does not need to display images, and can be covered by the frame.
In some embodiments of the present disclosure, as shown in fig. 2-5, the display substrate 1 may include a driving back plate 11 and a light emitting device layer 12, wherein:
along the extending direction of the driving back plate 11, the driving back plate 11 may be divided into at least a pixel circuit area located in the display area a and an edge area located in the frame area B.
In a direction perpendicular to the driving backplate 11, the driving backplate 11 may include a substrate 101 and a pixel circuit disposed on one side of the substrate 101, where the pixel circuit includes a driving transistor, and the driving transistor is a thin film transistor, for example, a top gate thin film transistor. The driving backplate 11 may include a substrate 101, an active layer 102, a gate insulating layer 103, a gate electrode 104, a dielectric layer 105, a source drain layer, and a planarization layer 106, wherein:
the active layer 102 may be provided on one side of the substrate 101. The gate insulating layer 103 covers the active layer 102 and the substrate 101. The gate electrode 104 is disposed on a surface of the gate insulating layer 103 facing away from the substrate 101 and opposite to the active layer 102. A dielectric layer 105 covers the gate electrode 104 and the gate insulating layer 103; the source-drain layer is disposed on a surface of the dielectric layer 105 facing away from the substrate 101, and includes a source 107 and a drain 108 connected to the active layer 102 through a via, the drain 108 being configured to be connected to the light emitting device layer 12, and the source 107 being configured to receive a driving signal. A planarization layer 106 may cover the source drain layer and the dielectric layer 105. Of course, the driving back plate 11 may further include other film layers, which are not listed here, and the driving transistor may also be a bottom gate thin film transistor.
As shown in fig. 2 to 5, the light emitting device layer 12 may include a first electrode layer 121, a light emitting layer 123, and a second electrode layer 124 sequentially stacked in a direction away from the driving back plate 11. Meanwhile, the light emitting device layer 12 may further include a pixel defining layer 122, which may be disposed on the driving back plate 11 and expose the first electrode layer 121 for defining a plurality of light emitting devices. The orthographic projection of the light emitting device layer 12 on the driving back plate 11 is located in a range surrounded by the edge area and exposes the edge area, so that the edge area of the driving back plate 11 is the frame area B of the display substrate 1, and the edge area does not emit light. The Light Emitting device layer 12 may have a plurality of Light Emitting devices, which are OLED (Organic Light-Emitting Diode) Light Emitting devices, each including a first electrode layer 121, a Light Emitting layer 123, and a second electrode layer 124, and the Light Emitting layer 123 may emit Light by applying a driving signal to the first electrode layer 121 and the second electrode layer 124.
In addition, the display substrate 1 may further include a peripheral region surrounding the display region a, a frame region B surrounding the peripheral region, and the driving backplate 11 may further include a peripheral circuit region surrounding the pixel circuit region and having a peripheral circuit connected to the pixel circuit, which may include a gate driving circuit, a light emission control circuit, and the like, which are not particularly limited herein.
As shown in fig. 1 to 5, the first touch device 2 is disposed in the frame area B, and the number thereof is plural, and the specific number is not limited herein. The first touch control components 2 can be arranged at intervals along the column direction; each first touch assembly 2 includes a first transmitting unit 21 and a first receiving unit 22, where:
the first transmitting unit 21 and the first receiving unit 22 are distributed on both sides of the display area a in the row direction and are linearly distributed in the row direction. The first transmitting unit 21 may emit ultrasonic waves, and a propagation range of the emitted ultrasonic waves covers the display area a. When a user performs a touch operation, if the finger is in an area capable of reflecting ultrasonic waves, the area where the finger is located, i.e., a touch area, can reflect ultrasonic waves, and the reflected ultrasonic waves can be received by the first receiving unit 22 and generate an induction signal, so that the first receiving unit 22 that receives ultrasonic waves can be determined according to the induction signal, and further the position of the touch area in the column direction, i.e., the position in the Y direction in fig. 1, can be determined.
In some embodiments of the present disclosure, as shown in fig. 1-5, the first transmitting unit 21 may include a first transmitting coil 211 and a first transmitting magnetic member 212, wherein:
the first emitter ring 211 and the first emitter magnetic member 212 may be distributed in a direction perpendicular to the display substrate 1. For example, the first luminescent ring 211 is disposed on a side of the substrate 101 adjacent to the light emitting device layer 12, and the first luminescent magnetic element 212 may be attached or otherwise fixed to a side of the substrate 101 facing away from the light emitting device layer 12.
The first transmitting coil 211 may include a plurality of coil bodies 200 connected in series, each of the coil bodies 200 has a ring structure with a number of notches, and the size of the notches is not particularly limited herein, for example, the coil bodies 200 may have an arc structure and a major arc. The coil bodies 200 of the same first emitter coil 211 may be distributed in the row direction.
In order to facilitate the arrangement of the first emitter coil 211, the respective coil bodies 200 may be arranged on the plurality of slopes 13 in a one-to-one correspondence, and the slopes 13 are inclined surfaces inclined with respect to the substrate 101, and the slope angles thereof are not particularly limited as long as the coil bodies 200 can be supported.
The orientation of the slope 13 is not particularly limited herein, for example: the bottom of the slope 13 may be located on the side of the top near the display area a, or the bottom of the slope 13 may be located on the side of the top away from the display area a.
In some embodiments of the present disclosure, a slope 13 may be provided at an area of the driving backplate 11 corresponding to each coil body 200, for example: as shown in fig. 2 and 3, the flat layer 106 may be extended to the frame area B, and the area of the flat layer 106 located in the frame area B may be sloped 13 through a gray scale mask process. Naturally, the slope 13 may be obtained by directly forming a wedge-shaped groove on the flat layer 106, and the slope 13 is a sidewall of the wedge-shaped groove. The material of the flat layer 106 may be an organic material, and after stopping inputting the alternating electric signal to the first emitter coil 211, the first emitter coil 211 may be buffered to stop vibration in time, thereby stopping emitting the ultrasonic wave.
As shown in fig. 6, the coil bodies 200 are disposed on the slopes 13 in a one-to-one correspondence, and the coil bodies 200 may be connected in series to form a first transmitting coil 211 with both ends of the notch of each coil body 200 as connecting ends. Meanwhile, in order to simplify the process, the coil body 200 of each first transmitting coil 211 may be provided in the same layer as the first electrode layer 121, i.e., the first coil body 200 and the first electrode layer 121 may be made of the same material and may be formed at the same time. In addition, the lead wire of the series coil body 200 may be formed simultaneously with the coil body 200, but the slope 13 may not be formed at the lead wire.
In other embodiments of the present disclosure, as shown in fig. 4 and 5, the slopes 13 may be disposed on the dielectric layer 105, the coil bodies 200 of the respective first emission coils 211 may be disposed on the slopes 13 in a one-to-one correspondence, and for simplifying the process, the respective coil bodies 200 may be disposed in the same layer as the source and drain layers, i.e., the first coil bodies 200 and the source and drain layers may be made of the same material and may be formed simultaneously.
In addition, in other embodiments of the present disclosure, each coil body 200 may also be formed simultaneously with the gate electrode 104 or other conductive film layer of the display substrate 1.
As shown in fig. 2-5, the first transmitting magnetic element 212 may be a permanent magnet or an electromagnet, so long as a magnetic field can be generated, and the first transmitting coil 211 is located in the magnetic field of the first transmitting magnetic element 212. For simplicity of construction and ease of installation, each first transmitting magnetic element 212 may be the same magnet, that is, the first transmitting coils 211 may share the same first transmitting magnetic element 212 and be in the same magnetic field. Further, the front projection of the first transmitting coil 211 on the substrate 101 may be located within the front projection of the first transmitting magnetic element 212 on the substrate 101.
When an alternating electric signal is input to the first radiation coil 211, the first radiation coil 211 may vibrate under the action of a magnetic field, and by controlling the frequency of the alternating electric signal, the vibration of the first radiation coil 211 may generate ultrasonic waves.
As shown in fig. 2 to 5, the first receiving unit 22 may include a first receiving coil 221 and a first receiving magnetic member 222, wherein:
the first receiving coil 221 and the first receiving magnetic member 222 may be distributed in a direction perpendicular to the display substrate 1. For example, the first receiving coil 221 is disposed on a side of the substrate 101 close to the light emitting device layer 12, and the first receiving magnetic member 222 is disposed on a side of the substrate 101 away from the light emitting device layer 12 by attaching or the like.
The first receiving coil 221 may have the same structure as the first transmitting coil 211, and may also include a plurality of coil bodies 200 connected in series, each coil body 200 having a ring structure with a notch, and the coil bodies 200 of the same first receiving coil 221 may be distributed along the row direction.
The coil bodies 200 of the first receiving coil 221 may be disposed on the plurality of slopes 13 in a one-to-one correspondence, and the slopes 13 of the coil bodies 200 supporting the first receiving coil 221 may be disposed on the same layer as the slopes 13 supporting the first transmitting coil 211, such as the flat layer 106 or the dielectric layer 105. The first receiving coil 221 may be disposed in the same layer as the first transmitting coil 211, and the detailed arrangement of the first receiving coil 221 and the slope 13 may refer to the first transmitting coil 211, which will not be described in detail herein. The orientation of the ramp 13 supporting the first transmit coil 211 and the first receive coil 221 may be the same or different.
The first receiving magnetic member 222 may be a permanent magnet or an electromagnet, so long as a magnetic field can be generated, and the first receiving coil 221 is located in the magnetic field of the first receiving magnetic member 222. For simplicity of construction and ease of installation, each first receiving magnetic member 222 may be the same magnet, that is, the first receiving coils 221 may share the same first receiving magnetic member 222 and be in the same magnetic field. Further, the front projection of the first receiving coil 221 on the substrate 101 may be located within the front projection of the first receiving magnetic member 222 on the substrate 101.
The ultrasonic wave reflected to the first receiving coil 221 may vibrate the first receiving coil 221, and under the action of the magnetic field, an induction signal may be generated, and the corresponding first receiving coil 221 may be determined by the induction signal, so as to determine the position of the touch area in the column direction, that is, the position in the Y direction.
As shown in fig. 1-5, the second touch components 3 are disposed in the frame area B, and the number of the second touch components is also plural, but not limited to the same as the number of the second touch components 3. The second touch control components 3 are arranged at intervals along the row direction; each second touch assembly 3 comprises a second transmitting unit 31 and a second receiving unit 32, wherein:
the second transmitting unit 31 and the second receiving unit 32 are distributed on both sides of the display area a in the column direction. The second transmitting unit 31 may emit ultrasonic waves, and a propagation range of the emitted ultrasonic waves covers the display area a. When the user performs the touch operation, if the finger is in the area capable of reflecting the ultrasonic wave, the area where the finger is located, i.e., the touch area, can reflect the ultrasonic wave, and the reflected ultrasonic wave can be received by the second receiving unit 32 and generate an induction signal, so that the second receiving unit 32 that receives the ultrasonic wave can be determined according to the induction signal, and further the position of the touch area in the row direction, i.e., the position in the X direction, can be determined.
In some embodiments of the present disclosure, as shown in fig. 1-5, the second transmitting unit 31 may include a second transmitting coil 311 and a second transmitting magnetic member 312, wherein:
the second transmitting coil 311 and the second receiving magnetic member 322 may be distributed in a direction perpendicular to the display substrate 1. For example, the second transmitting coil 311 is disposed on a side of the substrate 101 near the light-emitting device layer 12, and the second receiving magnetic member 322 may be disposed on a side of the substrate 101 away from the light-emitting device layer 12 by attaching or the like.
The second transmitting coil 311 may have the same structure as the first transmitting coil 211, and may also include a plurality of coil bodies 200 connected in series, each coil body 200 having a ring structure with a notch, and the coil bodies 200 of the same second transmitting coil 311 may be distributed along the row direction.
The coil bodies 200 of the second transmitting coil 311 may be disposed on the plurality of slopes 13 in a one-to-one correspondence, and the slopes 13 of the coil bodies 200 supporting the second transmitting coil 311 may be disposed on the same layer as the slopes 13 supporting the first transmitting coil 211, such as the flat layer 106 or the dielectric layer 105. The second transmitting coil 311 may be disposed in the same layer as the first transmitting coil 211, and the detailed arrangement of the second transmitting coil 311 and the slope 13 may refer to the first transmitting coil 211, which will not be described in detail herein.
The second transmitting magnetic element 312 may be a permanent magnet or an electromagnet as long as a magnetic field can be generated, and the second transmitting coil 311 is located in the magnetic field of the second transmitting magnetic element 312. For simplicity of construction and ease of installation, each second transmitting magnetic element 312 may be the same magnet, that is, each second transmitting magnetic element 312 may share the same second transmitting magnetic element 312 and be within the same magnetic field. Further, the orthographic projection of the second transmitting coil 311 on the substrate 101 may be located within the orthographic projection of the second transmitting magnetic element 312 on the substrate 101.
When an alternating electric signal is input to the second transmitting coil 311, the second transmitting coil 311 may generate vibration under the effect of a magnetic field, and the vibration of the second transmitting coil 311 may generate ultrasonic waves by controlling the frequency of the alternating electric signal.
The second receiving unit 32 includes a second receiving coil 321 and a second receiving magnetic member 322, wherein:
the second receiving coil 321 and the second receiving magnetic member 322 may be distributed in a direction perpendicular to the display substrate 1. For example, the second receiving coil 321 is disposed on a side of the substrate 101 near the light emitting device layer 12, and the second receiving magnetic member 322 may be attached or otherwise disposed on a side of the substrate 101 away from the light emitting device layer 12.
The second receiving coil 321 may have the same structure as the first transmitting coil 211, and may also include a plurality of coil bodies 200 connected in series, each coil body 200 has a ring structure with a notch, and the coil bodies 200 of the same first receiving coil 221 may be distributed along the row direction.
The coil bodies 200 of the second receiving coil 321 may be disposed on the plurality of slopes 13 in a one-to-one correspondence manner, and the slopes 13 of the coil bodies 200 supporting the second receiving coil 321 may be disposed on the same layer as the slopes 13 supporting the second receiving coil 321, such as the flat layer 106 or the dielectric layer 105. The second receiving coil 321 may be disposed in the same layer as the first transmitting coil 211, and the detailed arrangement of the second receiving coil 321 and the slope 13 may refer to the first transmitting coil 211, which will not be described in detail herein. The orientation of the ramp 13 supporting the second transmit coil 311 and the second receive coil 321 may be the same or different.
The second receiving magnetic member 322 may be a permanent magnet or an electromagnet as long as a magnetic field can be generated, and the second receiving coil 321 is located within the magnetic field of the second receiving magnetic member 322. For simplicity of construction and ease of installation, each first receiving magnetic element 222 may be the same magnet, that is, the second receiving coils 321 may share the same second receiving magnetic element 322 and be within the same magnetic field. Further, the orthographic projection of the second receiving coil 321 on the substrate 101 may be located within the orthographic projection of the second receiving magnetic member 322 on the substrate 101.
The second receiving coil 321 is vibrated by the ultrasonic wave reflected to the second receiving coil 321, and an induction signal can be generated under the action of the magnetic field, and the corresponding second receiving coil 321 can be determined by the induction signal, so that the position of the touch area in the column direction, that is, the position in the X direction, is determined.
Further, in order to avoid interference between the first touch component 2 and the second touch component 3, the frequencies of the ultrasonic signals generated by the first transmitting unit 21 and the second transmitting unit 31 may be different.
In some embodiments of the present disclosure, the number of coil bodies 200 of the first transmitting coil 211 and the first receiving coil 221 may be the same, the number being the first number. The number of coil bodies 200 of the second transmitting coil 311 and the second receiving coil 321 is the same, and the number is the second number. The first number is different from the second number, so that the first transmitting coil 211 and the second transmitting coil 311 can generate ultrasonic waves of different frequencies due to the different numbers of the coil bodies 200.
Of course, in other embodiments of the present disclosure, ultrasonic waves of different frequencies may also be generated by making the frequencies of the alternating current signals input to the first transmitting coil 211 and the second transmitting coil 311 different, without making the first number different from the second number.
As shown in fig. 7, the control unit 4 may be connected to the first touch unit 2 and the second touch unit 3, and is configured to control the first transmitting unit 21 and the second transmitting unit 31 to transmit ultrasonic waves, and determine the position of the touch area according to the ultrasonic waves received by the first receiving unit 22 and the second receiving unit 32. The positions of the touch areas include positions of the touch areas in the row direction, the column direction, and the direction perpendicular to the display substrate 1.
In some embodiments of the present disclosure, the control component 4 may apply an ac electrical signal to each first transmitting coil 211 to generate an ultrasonic wave, which may propagate to the first receiving coil 221 after being reflected by a user's finger, so that the first receiving coil 221 in a magnetic field generates an induction signal, and the control component 4 may receive the induction signal and determine a position of the touch area in the column direction according to which first receiving coil 221 the induction signal comes from. If a plurality of sensing signals are received at the same time, the position of the touch area in the column direction is determined according to the first receiving coil 221 corresponding to the sensing signal with the largest signal intensity. Meanwhile, the control component 4 may apply an ac signal to the second transmitting coil 311, and determine the position of the touch area in the row direction according to the sensing signal of the second receiving coil 321, and the specific principle is the same as the principle of determining the position in the column direction, which is not described in detail herein.
In addition, the control component 4 may further determine a position of the touch area in a direction perpendicular to the display substrate 1 according to an induction signal of at least one of the first receiving coil 221 and the second receiving coil 321. For example, the control component 4 may record the time when the first transmitting coil 211 emits the ultrasonic wave and the time when the first receiving coil 221 generates the sensing signal, determine the time difference therebetween, and calculate the distance between the touch area and the display substrate 1 in the direction perpendicular to the display substrate 1 according to the time difference, the propagation speed of the ultrasonic wave and the determined distance between the first transmitting coil 211 and the first receiving coil 221 during manufacturing, so as to determine the position of the touch area in the direction perpendicular to the display substrate 1.
The principle of determining the position of the touch area in the direction perpendicular to the display substrate 1 by the second transmitting coil 311 and the second receiving coil 321 is the same as the above-described principle of determining the position of the touch area in the direction perpendicular to the display substrate 1 by the first transmitting coil 211 and the first receiving coil 221, and will not be described in detail.
Of course, the positions of the touch areas in the direction perpendicular to the display substrate 1 may be determined by the first touch component 2 and the second touch component 3 at the same time, and if the determined positions are different, the middle position of the two positions in the direction perpendicular to the display substrate 1 is taken as the position of the touch area in the direction perpendicular to the display substrate 1.
The control unit 4 may include a driving circuit board on which a chip and a control circuit may be provided, and the specific structure thereof is not particularly limited as long as the above-described functions can be achieved.
Further, after determining the position of the touch area in the direction perpendicular to the display substrate 1, it may also be determined whether the position is within a preset range, that is, whether the distance between the touch area and the display substrate 1 is within the preset range, and if the distance is within the preset range, the control component 4 may send a control signal to control the touch display panel to execute a corresponding action, for example, to display a specific screen. If the control signal is not within the preset range, the control component 4 does not send out the control signal, and the touch display panel does not execute the corresponding action.
The embodiments of the present disclosure further provide a display device, including the touch display panel of any of the above embodiments, and the structure and the beneficial effects of the touch display panel may refer to the embodiments of the touch display panel described above, which are not described in detail herein. The display device can be electronic equipment such as a mobile phone, a tablet personal computer, a television and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (7)
1. A touch display panel, comprising:
a display substrate having a display region and a frame region surrounding the display region;
the plurality of first touch components are arranged in the frame area and are arranged at intervals along the column direction; each first touch control component comprises a first transmitting unit and a first receiving unit which are distributed on two sides of the display area along the row direction;
the plurality of second touch components are arranged in the frame area and are arranged at intervals along the row direction; each second touch control component comprises a second transmitting unit and a second receiving unit which are distributed on two sides of the display area along the column direction;
the control component is used for controlling the first transmitting unit and the second transmitting unit to transmit ultrasonic waves and determining the position of the touch area according to the ultrasonic waves, received by the first receiving unit and the second receiving unit, of the finger reflected from the touch area; the frequencies of the ultrasonic waves emitted by the first emitting unit and the second emitting unit are different;
the positions of the touch areas comprise positions of the touch areas in the row direction, the column direction and the direction perpendicular to the display substrate;
the first transmitting unit comprises first transmitting magnetic pieces and first transmitting coils which are distributed along the direction perpendicular to the display substrate; the first receiving unit comprises first receiving magnetic pieces and first receiving coils which are distributed along the direction perpendicular to the display substrate;
the first transmitting coil is positioned in the magnetic field generated by the first transmitting magnetic piece; the first receiving coil is positioned in the magnetic field generated by the first receiving magnetic piece;
the control component is used for applying alternating current signals to the first transmitting coil and determining the position of the touch area in the column direction according to the induction signals of the first receiving coil;
the second transmitting unit comprises second transmitting magnetic pieces and second transmitting coils which are distributed along the direction vertical to the display substrate; the second receiving unit comprises second receiving magnetic pieces and second receiving coils which are distributed along the direction vertical to the display substrate;
the second transmitting coil is positioned in the magnetic field generated by the second transmitting magnetic piece; the second receiving coil is positioned in the magnetic field generated by the second receiving magnetic piece;
the control component is used for applying alternating current signals to the second transmitting coil and determining the position of the touch area in the row direction according to the induction signals of the second receiving coil;
the first transmitting coil, the first receiving coil, the second transmitting coil and the second receiving coil all comprise a plurality of layers of coil bodies which are connected in series, and each coil body is of a ring-shaped structure with a notch.
2. The touch display panel of claim 1, wherein the control component is configured to determine a position of the touch region in a direction perpendicular to the display substrate based on an inductive signal of at least one of the first receiving coil and the second receiving coil.
3. The touch display panel of claim 1, wherein the display substrate comprises:
the driving backboard comprises a pixel circuit area positioned in the display area and an edge area positioned in the frame area;
the light-emitting device layer comprises a first electrode layer, a light-emitting layer and a second electrode layer which are sequentially laminated along the direction deviating from the driving backboard; orthographic projection of the light-emitting device layer on the driving backboard is positioned in a range surrounded by the edge area;
the driving backboard is provided with slopes corresponding to the area of each coil body; the coil bodies are arranged on the slopes in a one-to-one correspondence manner and are arranged on the same layer as the first electrode layer.
4. The touch display panel of claim 1, wherein the display substrate comprises:
the driving backboard comprises a pixel circuit area positioned in the display area and an edge area positioned in the frame area; the driving backboard comprises a substrate and at least one thin film transistor which is arranged on the substrate and is positioned in the pixel circuit area, the thin film transistor comprises a dielectric layer and a source-drain layer which is positioned on the surface of the dielectric layer, which is away from the substrate, and the source-drain layer comprises a source electrode and a drain electrode;
the light-emitting device layer is arranged on one side of the driving backboard, and orthographic projection of the light-emitting device layer on the driving backboard is positioned in a range surrounded by the edge area;
the dielectric layer is provided with slopes corresponding to the areas of each coil body; the coil bodies are arranged on the slopes in a one-to-one correspondence manner and are arranged on the same layer as the source drain layer.
5. The touch display panel according to claim 1, wherein each of the first emitting magnetic elements is the same magnetic element; each first receiving magnetic piece is the same magnetic piece; each second transmitting magnetic piece is the same magnetic piece; each of the second receiving magnetic pieces is the same magnetic piece.
6. The touch display panel of claim 1, wherein the number of coil bodies of the first transmitting coil and the first receiving coil is the same and is a first number;
the number of coil bodies of the second transmitting coil and the second receiving coil is the same, and the number of coil bodies is a second number;
the first number is different from the second number.
7. A display device comprising the touch display panel of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826581.XA CN111966242B (en) | 2020-08-17 | 2020-08-17 | Touch display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826581.XA CN111966242B (en) | 2020-08-17 | 2020-08-17 | Touch display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111966242A CN111966242A (en) | 2020-11-20 |
| CN111966242B true CN111966242B (en) | 2024-03-12 |
Family
ID=73389238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010826581.XA Active CN111966242B (en) | 2020-08-17 | 2020-08-17 | Touch display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111966242B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230804B (en) * | 2020-12-15 | 2021-03-26 | 京东方科技集团股份有限公司 | Display device |
| CN113065440A (en) * | 2021-03-25 | 2021-07-02 | 惠州市华星光电技术有限公司 | Display panel and display device |
| CN113050812B (en) * | 2021-03-30 | 2023-11-21 | 联想(北京)有限公司 | Control method, electronic pen and electronic equipment |
| CN113050810A (en) * | 2021-03-30 | 2021-06-29 | 联想(北京)有限公司 | Control method, electronic equipment and stylus pen |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224138A (en) * | 2015-10-22 | 2016-01-06 | 京东方科技集团股份有限公司 | Suspension touch control display device |
| KR20160080538A (en) * | 2014-12-29 | 2016-07-08 | 엘지전자 주식회사 | Mobile terminal and method for controlling the same |
| CN106227392A (en) * | 2015-06-02 | 2016-12-14 | 三星电子株式会社 | Touch panel device and control method thereof |
| CN106293247A (en) * | 2016-09-05 | 2017-01-04 | 江苏特思达电子科技股份有限公司 | A kind of surface acoustic wave touch screen and touch display system |
| CN106896963A (en) * | 2017-03-09 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of suspension touch control panel, its touch control method and display device |
| CN107291307A (en) * | 2017-07-26 | 2017-10-24 | 京东方科技集团股份有限公司 | Ultrasonic wave contactor control device and method, display device |
| CN107690611A (en) * | 2015-05-27 | 2018-02-13 | 三星电子株式会社 | Touch recognition equipment and its control method |
| CN108196732A (en) * | 2018-01-04 | 2018-06-22 | 京东方科技集团股份有限公司 | Ultrasonic wave touch device and display device |
| CN109508119A (en) * | 2018-12-21 | 2019-03-22 | 武汉华星光电半导体显示技术有限公司 | Suspension touch control display device and suspension touch control method |
| CN111293789A (en) * | 2020-02-19 | 2020-06-16 | 华为技术有限公司 | Detection device and method, wireless power transmitting device and wireless power receiving device |
-
2020
- 2020-08-17 CN CN202010826581.XA patent/CN111966242B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160080538A (en) * | 2014-12-29 | 2016-07-08 | 엘지전자 주식회사 | Mobile terminal and method for controlling the same |
| CN107690611A (en) * | 2015-05-27 | 2018-02-13 | 三星电子株式会社 | Touch recognition equipment and its control method |
| CN106227392A (en) * | 2015-06-02 | 2016-12-14 | 三星电子株式会社 | Touch panel device and control method thereof |
| CN105224138A (en) * | 2015-10-22 | 2016-01-06 | 京东方科技集团股份有限公司 | Suspension touch control display device |
| CN106293247A (en) * | 2016-09-05 | 2017-01-04 | 江苏特思达电子科技股份有限公司 | A kind of surface acoustic wave touch screen and touch display system |
| CN106896963A (en) * | 2017-03-09 | 2017-06-27 | 京东方科技集团股份有限公司 | A kind of suspension touch control panel, its touch control method and display device |
| CN107291307A (en) * | 2017-07-26 | 2017-10-24 | 京东方科技集团股份有限公司 | Ultrasonic wave contactor control device and method, display device |
| CN108196732A (en) * | 2018-01-04 | 2018-06-22 | 京东方科技集团股份有限公司 | Ultrasonic wave touch device and display device |
| CN109508119A (en) * | 2018-12-21 | 2019-03-22 | 武汉华星光电半导体显示技术有限公司 | Suspension touch control display device and suspension touch control method |
| CN111293789A (en) * | 2020-02-19 | 2020-06-16 | 华为技术有限公司 | Detection device and method, wireless power transmitting device and wireless power receiving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111966242A (en) | 2020-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111966242B (en) | Touch display panel and display device | |
| CN111541978B (en) | Sound display device | |
| KR102612609B1 (en) | Display apparatus | |
| CN111541976B (en) | Display device | |
| CN106932947B (en) | Array substrate, display panel and human-computer interaction terminal | |
| KR101097332B1 (en) | Display module having haptic function | |
| CN108845710B (en) | Touch panel, driving method thereof and touch device | |
| CN108183110A (en) | Display panel and display device | |
| CN109859648A (en) | Display panel and display device | |
| CN104143292A (en) | Display device | |
| TWI746123B (en) | Display device | |
| CN110213416A (en) | Ultrasonic sensor mould group, display screen module and electronic equipment | |
| CN215453262U (en) | Electronic device | |
| KR20170069530A (en) | Display apparatus | |
| US10868582B2 (en) | Display device | |
| WO2021024618A1 (en) | Illumination device and display device | |
| KR20160139468A (en) | Display device using semiconductor light emitting device | |
| TW201712490A (en) | Touch panel | |
| CN113568518A (en) | Touch display device with fingerprint sensing function and touch sensing device | |
| CN113391730B (en) | Touch module and display device | |
| WO2010035705A1 (en) | Input device | |
| CN109726702A (en) | Display panel and its manufacturing method, display device | |
| CN113486832B (en) | Display module and electronic equipment | |
| JP7137093B1 (en) | Information processing equipment | |
| CN110707109B (en) | Display panel, driving backboard and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |