CN110703938A - Double-sided touch transparent display panel, driving method thereof and display device - Google Patents
Double-sided touch transparent display panel, driving method thereof and display device Download PDFInfo
- Publication number
- CN110703938A CN110703938A CN201910877877.1A CN201910877877A CN110703938A CN 110703938 A CN110703938 A CN 110703938A CN 201910877877 A CN201910877877 A CN 201910877877A CN 110703938 A CN110703938 A CN 110703938A
- Authority
- CN
- China
- Prior art keywords
- touch
- signal
- electrode
- display panel
- sided
- 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.)
- Granted
Links
Images
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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
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)
- Position Input By Displaying (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
A double-sided touch control transparent display panel and a driving method and a display device thereof are provided, wherein the display panel comprises a light emitting layer for displaying pictures on double sides, a first transparent substrate, a second transparent substrate, a touch control electrode and a control circuit; one side of the first transparent substrate, which is far away from the light-emitting layer, is a first touch surface, and one side of the second transparent substrate, which is far away from the light-emitting layer, is a second touch surface; the touch electrode is located on the first touch surface and comprises a plurality of signal points, and the control circuit collects the signal variation of each signal point and judges whether the touch position is located on the first touch surface or the second touch surface according to the signal variation. According to the invention, the control circuit is used for judging the signal variation, the touch position is determined to be positioned on the first touch surface or the second touch surface, and the double-sided touch function is realized by only adopting the touch electrode positioned on one side of the display panel, so that the process is simplified and the cost is saved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a double-sided touch transparent display panel, a driving method thereof and a display device.
Background
At present, the application range of transparent display devices is more and more extensive, such as billboards, meeting rooms, artificial intelligence and the like. With the gradual expansion of the market, the transparent display device with the double-sided touch function is also required.
Fig. 1 shows a schematic structural diagram of a conventional double-sided touch transparent display panel, which includes an OLED light-emitting layer 11, a first transparent substrate 121, a second transparent substrate 122, a first touch electrode 131, and a second touch electrode 132 for displaying images on both sides. The first transparent substrate 121 and the second transparent substrate 122 are respectively disposed on two sides of the OLED light emitting layer 11, the first touch electrode 131 is formed on one side of the first transparent substrate 121 away from the OLED light emitting layer 11, and the second touch electrode 132 is formed on one side of the second transparent substrate 122 away from the OLED light emitting layer 11. Therefore, the first touch electrode 131 and the second touch electrode 132 need to be manufactured respectively, which reduces the manufacturing efficiency and the product yield; in addition, the first touch chip 141 connected to the first touch electrode 131 and the second touch chip 142 connected to the second touch electrode 132 need to be separately disposed, which increases the production cost.
The foregoing description is provided for general background information and is not admitted to be prior art.
Disclosure of Invention
The invention aims to provide a double-sided touch transparent display panel, a driving method thereof and a display device, which only adopt a touch electrode positioned on one side of the display panel to simultaneously realize a double-sided touch function, simplify the process and save the cost.
The invention provides a double-sided touch transparent display panel, which comprises a light-emitting layer for double-sided display picture, a first transparent substrate, a second transparent substrate, a touch electrode and a control circuit; the first transparent substrate and the second transparent substrate are respectively arranged on two sides of the light-emitting layer, one side of the first transparent substrate, which is far away from the light-emitting layer, is a first touch surface, and one side of the second transparent substrate, which is far away from the light-emitting layer, is a second touch surface; the touch electrode is positioned on the first touch surface and comprises a plurality of signal points, and the touch electrode is used for detecting a touch position and outputting a touch detection signal; the control circuit is connected with the touch electrode, collects the signal variation of each signal point according to the touch detection signal, and judges whether the touch position is positioned on the first touch surface or the second touch surface according to the signal variation.
Further, the control circuit determines that the touch position is located on the first touch surface when at least one of the signal variations is greater than a first threshold; when any signal variation is not larger than the first threshold value and at least one signal variation is larger than a second threshold value, the control circuit judges that the touch position is positioned on the second touch surface; and the control circuit judges that touch control is not performed when any signal variation is not greater than the second threshold.
Further, the second threshold is 0.25-0.5 times of the first threshold.
Furthermore, the control circuit comprises an acquisition module, a first judgment module, a second judgment module, a touch point calculation module and a function control module; the acquisition module is used for receiving the touch detection signal and acquiring the signal variation of each signal point according to the touch detection signal; the first judging module is used for judging whether at least one signal variation is larger than a first threshold value; if the touch control mode exists, controlling the double-sided touch control transparent display panel to be switched to a first touch control mode; if the signal variation does not exist, the signal variation is transmitted to a second judgment module; the second judging module is used for judging whether at least one signal variation is larger than a second threshold value when any signal variation is not larger than the first threshold value; if the touch control mode exists, controlling the double-sided touch control transparent display panel to be switched to a second touch control mode; if not, judging that touch control is not performed; the touch point calculating module is used for calculating a first touch coordinate according to the signal variation larger than the first threshold and the corresponding signal point in the first touch mode; the touch point calculation module is further configured to calculate a second touch coordinate according to the signal variation larger than the second threshold and the corresponding signal point in the second touch mode; the function control module is used for executing operation related to the first touch surface according to the first touch coordinate in the first touch mode; the function control module is further configured to, in the second touch mode, execute an operation related to the second touch surface according to the second touch coordinate.
Further, the light emitting layer includes at least one of an organic light emitting diode, a quantum dot light emitting diode, and a micro light emitting diode.
Further, the light-emitting layer includes a plurality of pixel units, each of which is provided with an anode and a cathode, and the anode and the cathode are formed of a transparent conductive material.
Further, the touch electrode comprises a plurality of first electrode strips, an insulating layer and a plurality of second electrode strips; the first electrode strips are insulated at intervals and positioned on the first touch surface, the insulating layer covers the first electrode strips, and the second electrode strips are insulated at intervals and positioned on the insulating layer; the first electrode strips and the second electrode strips are insulated and crossed.
Furthermore, the plurality of first electrode strips are used for receiving touch driving signals, and the plurality of second electrode strips are used for detecting the touch position and outputting the touch detection signals; or, the plurality of first electrode strips are used for detecting the touch position and outputting the touch detection signal, and the plurality of second electrode strips are used for receiving the touch driving signal.
The invention also provides a driving method of the double-sided touch transparent display panel, which is suitable for any one of the double-sided touch transparent display panels, and the driving method comprises the following steps:
acquiring the signal variation of each signal point according to the touch detection signal;
judging whether at least one signal variation is larger than a first threshold value;
if the signal point exists, calculating a first touch coordinate according to the signal variation larger than the first threshold and the corresponding signal point, and executing operation related to the first touch surface according to the first touch coordinate;
if not, judging whether at least one signal variation is larger than a second threshold value; if the signal point exists, calculating a second touch coordinate according to the signal variation larger than the second threshold and the corresponding signal point, and executing operation related to the second touch surface according to the second touch coordinate; if not, judging that no touch is performed.
The invention also provides a display device which comprises any one double-sided touch transparent display panel.
The invention provides a double-sided touch transparent display panel, a driving method thereof and a display device, wherein the size of signal variation is judged by a control circuit, and whether a touch position is positioned on a first touch surface or a second touch surface is determined, so that the double-sided touch function is realized by only adopting a touch electrode on one side of the display panel, the touch electrodes on two sides are not required to be manufactured respectively, the working procedure is simplified, the overall yield is improved, only one touch chip is required, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of a double-sided touch transparent display panel in the prior art.
Fig. 2 is a schematic structural diagram of a double-sided touch transparent display panel according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a touch electrode in the dual-sided touch transparent display panel shown in fig. 2.
Fig. 4 is a schematic view of an application scenario of the dual-sided touch transparent display panel shown in fig. 2.
Fig. 5(a) is a schematic diagram of a signal variation acquisition result of a touch position on a first touch surface.
Fig. 5(b) is a schematic diagram of a signal variation acquisition result of the touch position on the second touch surface.
Fig. 6 is a frame structure diagram of a control circuit in a dual-sided touch transparent display panel according to an embodiment of the invention.
Fig. 7 is a flowchart illustrating a driving method of a dual-sided touch transparent display panel according to an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Fig. 2 is a schematic structural diagram of a double-sided touch transparent display panel according to an embodiment of the invention. The double-sided touch transparent display panel includes a light emitting layer 21 for displaying images on both sides, a first transparent substrate 221, a second transparent substrate 222, a touch electrode 30 and a control circuit 40. The first transparent substrate 221 and the second transparent substrate 222 are respectively disposed on two sides of the light-emitting layer 21, a side of the first transparent substrate 221 away from the light-emitting layer 21 is a first touch surface 20a, and a side of the second transparent substrate 222 away from the light-emitting layer 21 is a second touch surface 20 b; the touch electrode 30 is located on the first touch surface 20a, and the touch electrode 30 is not disposed on the second touch surface 20 b. The dual-sided touch transparent display panel of the present embodiment can realize the dual-sided touch function only by the touch electrode 30 on the first touch surface 20a and the control circuit 40 connected to the touch electrode 30.
The light emitting layer 21 includes a plurality of pixel units, and each pixel unit includes at least one of an Organic Light Emitting Diode (OLED), a quantum dot light emitting diode (QLED), and a micro-LED. In the present embodiment, taking the OLED light emitting layer 21 as an example, an anode 211, an organic functional layer 212 and a cathode 213 are disposed in each pixel unit, and the pixel units are separated by a light-tight retaining wall 214. The anode 211 and the cathode 213 are formed of a transparent conductive material, such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), etc., and light emitted from the OLED, the QLED, or the micro-LED is emitted through the cathode 213 toward the first touch surface 20a and also emitted through the anode 211 toward the second touch surface 20b, so that the transparent display panel realizes double-sided display. The organic functional layer 212 includes a hole injection layer, a hole transport layer, a light emitting material layer, and an electron transport layer, which are sequentially stacked.
Referring to fig. 3, a schematic structural diagram of the touch electrode 30 in the present embodiment is shown, where the touch electrode 30 is an On-cell touch electrode, and includes a plurality of first electrode strips 31, an insulating layer 32, and a plurality of second electrode strips 33, the plurality of first electrode strips 31 are insulated from each other at intervals and located On the first touch surface 20a, the insulating layer 32 covers the first electrode layer, the plurality of second electrode strips 33 are insulated from each other at intervals and located On the insulating layer 32, the first electrode strips 31 and the second electrode strips 33 are insulated from each other and intersect each other, and the first electrode strips 31 and the second electrode strips 33 are both a grid structure formed by intersecting wires. Further, the touch electrode 30 further includes an encapsulation layer covering the second electrode layer. One of the first electrode strips 31 and the second electrode strips 33 is a touch driving electrode, and the other one is a touch detection electrode, that is, the first electrode strips 31 are used for receiving a touch driving signal, and the second electrode strips 33 are used for detecting a touch position and outputting a touch detection signal; alternatively, the first electrode strips 31 detect a touch position and output a touch detection signal, and the second electrode strips 33 are used for receiving a touch driving signal.
Further, referring to fig. 3, the dual-sided touch transparent display panel further includes a plurality of first signal lines 34 and a plurality of second signal lines 35, the first signal lines 34 are connected between the first electrode strips 31 and the control circuit 40, and the second signal lines 35 are connected between the second electrode strips 33 and the control circuit 40. The first electrode layer, the second electrode layer, the first signal line 34, and the second signal line 35 are made of, for example, a metal such as silver or copper, or a transparent conductive material such as ITO or IZO.
The first transparent substrate 221 and/or the second transparent substrate 222 are preferably flexible thin films having a thickness of, for example, 0.03mm to 1 mm. In other embodiments, the first transparent substrate 221 and/or the second transparent substrate 222 may also be a rigid substrate, such as a glass substrate or a plastic substrate.
In this embodiment, the case where the touch position is located on the first touch surface 20a includes but is not limited to: a contact/distance between the human hand (or the stylus pen) and the first transparent substrate 221 is less than a predetermined value, a contact/distance between the human hand (or the stylus pen) and the touch electrode 30 is less than a predetermined value, and a contact/distance between the human hand (or the stylus pen) and a protective film or an optical film covering the touch electrode 30 is less than a predetermined value; the case where the touch position is located on the second touch surface 20b includes, but is not limited to: the contact/distance between the human hand (or the stylus pen) and the second transparent substrate 222 is less than a predetermined value, and the contact/distance between the human hand (or the stylus pen) and a protective film or an optical film covering the second transparent substrate 222 is less than a predetermined value.
With reference to fig. 3 and 4, fig. 4 is a schematic view showing an application scenario of the double-sided touch transparent display panel of the present embodiment, the touch electrode 30 includes a plurality of signal points 36, the first electrode strips 31 and the second electrode strips 33 intersect at the positions of the signal points 36 to form a capacitor, and the control circuit 40 collects a signal variation of each signal point 36 according to the touch detection signal output by the touch electrode 30, and determines whether the touch position is located on the first touch surface 20a or the second touch surface 20b according to the signal variation. Specifically, the control circuit 40 transmits the touch driving signal to the touch electrode 30 in a row scanning or row scanning manner, and calculates the signal variation according to the capacitance variation detected by two adjacent scanning. The control circuit 40 is matched with the touch electrode 30 only positioned on one side of the display panel to simultaneously realize the double-sided touch function, the touch electrodes on two sides are not required to be manufactured respectively, the working procedure is simplified, the overall yield is improved, only one touch chip is required to bear the control circuit 40, and the cost is saved.
Referring to fig. 5(a), when a human hand 51 (or a stylus) touches the first touch surface 20a, an equivalent capacitance is formed between the human body and the touch electrode 30, which causes a change in capacitance of one or more signal points 36 at a touch position, resulting in a change in charged or discharged signal parameters of the first electrode strip 31 and the second electrode strip 33 at the positions of the signal points 36, and the control circuit 40 receives the touch detection signal and acquires a signal variation of each signal point 36. The control circuit 40 presets a first threshold value Z1, when at least one signal variation is larger than a first threshold value Z1, the control circuit 40 determines that the touch position is located on the first touch surface 20a, and then calculates a first touch coordinate a1 according to the signal variation larger than the first threshold value Z1 and the corresponding signal point 36; when the variation of any signal is not greater than the first threshold Z1, the control circuit 40 determines that the touch position is not located on the first touch surface 20 a. In this embodiment, the distance between the human hand 51 and the touch electrode 30 touching the first touch surface 20a is smaller, the signal variation is larger, the maximum value of the signal variation is 811, for example, the first threshold Z1 is preset to 300, and the first touch coordinate a1 is calculated according to the signal points 36 with the signal variation larger than 300, for example, by: the center positions of the signal points 36 are defined as the first touch coordinates a1, or the signal point 36 with the largest signal variation is defined as the first touch coordinates a1, but the disclosure is not limited thereto.
Referring to fig. 5(b), when a human hand 52 (or a stylus) touches the second touch surface 20b, an equivalent capacitance is formed between the human body and the touch electrode 30, which causes a change in capacitance of one or more signal points 36 at the touch position, resulting in a change in the charged or discharged signal parameters of the first electrode strip 31 and the second electrode strip 33 at the position of the signal points 36, and the control circuit 40 receives the touch detection signal and acquires the signal variation of each signal point 36. The control circuit 40 presets the second threshold Z2, and the control circuit 40 first determines that the touch position is not located on the first touch surface 20a according to the fact that any signal variation is not greater than the first threshold Z1, and then compares the signal variation with the second threshold Z2. When at least one signal variation is larger than the second threshold value Z2, the control circuit 40 determines that the touch position is located on the second touch surface 20b, and then calculates a second touch coordinate a2 according to the signal variation larger than the second threshold value Z2 and the corresponding signal point 36; when the variation of any signal is not greater than the second threshold Z2, the control circuit 40 determines that no touch is performed and does not perform operations related to touch. In this embodiment, the distance between the human hand 52 touching the second touch surface 20b and the touch electrode 30 is larger and the signal variation is smaller than the first touch surface 20a, but since the thicknesses of the touch electrode 30, the first transparent substrate 221, the second transparent substrate 222 and the light-emitting layer 21 are all thinner in this embodiment, the distance between the upper surface of the touch electrode 30 and the second touch surface 20b is only 0.1mm to 2.5mm, for example, and the touch position can still be accurately located according to the magnitude of the signal variation. The maximum value of the signal variation is, for example, 243, the first threshold Z1 is preset to 75, and the second touch coordinate a2 is determined according to the signal points 36 with the signal variation larger than 75, and the calculation method is, for example: the center positions of the signal points 36 are defined as the second touch coordinate a2, or the signal point 36 with the largest signal variation is defined as the second touch coordinate a2, but not limited thereto.
The first threshold value Z1 and the second threshold value Z2 are determined by the specific structure of the touch electrode 30, the overall thickness of the dual-sided touch transparent display panel, and the like, and are pre-stored in the control circuit 40 of the dual-sided touch transparent display panel after being determined by calculation or experiments. If the ratio of the second threshold Z2 to the first threshold Z1 is too small, the touch sensitivity of the first touch surface 20a may be low; if the ratio of the second threshold value Z2 to the first threshold value Z1 is too large, a false determination may be caused. After the experiment, the second threshold value Z2 is preferably 0.25 to 0.5 times the first threshold value Z1.
Referring to fig. 6, a frame structure diagram of the control circuit 40 in the embodiment is shown, where the control circuit 40 includes an acquisition module 41, a first determination module 42, a second determination module 43, a touch coordinate calculation module 44, and a function control module 45.
The collecting module 41 is connected to the touch electrode 30, and is configured to receive the touch detection signal and collect the signal variation of each signal point 36 according to the touch detection signal.
The first judging module 42 is connected to the acquiring module 41, and is configured to judge whether there is at least one signal variation that is greater than a first threshold Z1; if the first touch mode exists, controlling the double-sided touch transparent display panel to be switched to the first touch mode; if not, the signal variation is transmitted to the second determination module 43.
The second judging module 43 is connected to the first judging module 42, and configured to judge whether at least one signal variation is larger than a second threshold Z2 when none of the signal variations is larger than the first threshold Z1; if the touch control mode exists, the double-sided touch control transparent display panel is controlled to be switched to a second touch control mode; if not, judging that no touch is performed.
The touch coordinate calculation module 44 is connected to the first determination module 42 and the second determination module 43, and configured to calculate a first touch coordinate a1 according to the signal variation greater than the first threshold Z1 and the corresponding signal point 36 in the first touch mode; the touch coordinate calculation module 44 is further configured to calculate a second touch coordinate a2 according to the signal variation greater than the second threshold Z2 and the corresponding signal point 36 in the second touch mode.
The function control module 45 is configured to perform an operation related to the first touch surface 20a according to the first touch coordinate a1 in the first touch mode; the function control module 45 is further configured to perform an operation related to the second touch surface 20b according to the second touch coordinate a2 in the second touch mode.
Further, the control circuit 40 further includes a touch driving signal output module for outputting a touch driving signal to the touch driving electrode. The control circuit 40 is a touch chip disposed on a Printed Circuit Board (PCB) or a flexible printed circuit board (FPC), and the Printed Circuit Board (PCB) or the flexible printed circuit board (FPC) is electrically connected to the touch electrode 30 by bonding.
Referring to fig. 7, the present invention further provides a driving method of a dual-sided touch transparent display panel, including the following steps:
acquiring the signal variation of each signal point 36 according to the touch detection signal;
judging whether at least one signal variation quantity is larger than a first threshold value Z1;
if so, calculating a first touch coordinate A1 according to the signal variation greater than the first threshold Z1 and the corresponding signal point 36, and then performing an operation related to the first touch surface 20a according to the first touch coordinate A1;
if not, judging whether at least one signal variation is larger than a second threshold value Z2; if so, calculating a second touch coordinate A2 according to the signal variation greater than the second threshold Z2 and the corresponding signal point 36, and then performing an operation related to the second touch surface 20b according to the second touch coordinate A2; if not, judging that no touch is performed.
The step of performing the operation related to the first touch surface 20a according to the first touch coordinate a1 includes, but is not limited to, changing the image displayed on the first touch surface 20a and/or the second touch surface 10b according to the corresponding image/text on the first touch surface 20a according to the first touch coordinate a 1. The step of performing the operation related to the second touch surface 20b according to the second touch coordinate a2 includes, but is not limited to, changing the image displayed on the first touch surface 20a and/or the second touch surface 10b according to the corresponding image/text on the second touch surface 20b according to the second touch coordinate a 2. Therefore, the double-sided touch transparent display panel can conveniently realize the double-sided interaction function only by depending on one touch chip.
The invention also provides a display device which can realize double-sided transparent display and double-sided touch control functions and comprises any one of the double-sided touch control transparent display panels.
In summary, the invention provides a double-sided touch transparent display panel, a driving method thereof and a display device, wherein the control circuit 40 is used for judging the magnitude of the signal variation, and determining whether the touch position is located on the first touch surface 20a or the second touch surface 20b, so that the double-sided touch function is realized by only using the touch electrode 30 on one side of the display panel, and the touch electrodes on two sides do not need to be manufactured respectively, thereby simplifying the process, improving the overall yield, and saving the cost by only using one touch chip.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features are not contradictory, the scope of the present description should be considered as being described in the present specification.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A double-sided touch transparent display panel is characterized by comprising a light emitting layer (21) for displaying a picture on double sides, a first transparent substrate (221), a second transparent substrate (222), a touch electrode (30) and a control circuit (40);
the first transparent substrate (221) and the second transparent substrate (222) are respectively arranged on two sides of the light-emitting layer (21), one side, away from the light-emitting layer (21), of the first transparent substrate (221) is a first touch surface (20a), and one side, away from the light-emitting layer (21), of the second transparent substrate (222) is a second touch surface (20 b);
the touch electrode (30) is located on the first touch surface (20a), the touch electrode (30) comprises a plurality of signal points (36), and the touch electrode (30) is used for detecting a touch position and outputting a touch detection signal;
the control circuit (40) is connected to the touch electrode (30), collects a signal variation of each signal point (36) according to the touch detection signal, and determines whether the touch position is located on the first touch surface (20a) or the second touch surface (20b) according to the signal variation.
2. The dual-sided touch transparent display panel according to claim 1, wherein the control circuit (40) determines that the touch position is located on the first touch surface (20a) when at least one of the signal variations is greater than a first threshold value (Z1);
the control circuit (40) determines that the touch position is located on the second touch surface (20b) when any of the signal variation amounts is not greater than the first threshold (Z1) and at least one of the signal variation amounts is greater than a second threshold (Z2);
and the control circuit (40) judges that touch is not performed when any signal variation is not larger than the second threshold (Z2).
3. The dual-sided touch transparent display panel of claim 2, wherein the second threshold value (Z2) is 0.25 to 0.5 times the first threshold value (Z1).
4. The dual-sided touch transparent display panel according to claim 1, wherein the control circuit (40) comprises an acquisition module (41), a first judgment module (42), a second judgment module (43), a touch coordinate calculation module (44) and a function control module (45);
the acquisition module (41) is configured to receive the touch detection signal, and acquire the signal variation of each signal point (36) according to the touch detection signal;
the first judging module (42) is used for judging whether at least one signal variation is larger than a first threshold value (Z1); if the touch control mode exists, controlling the double-sided touch control transparent display panel to be switched to a first touch control mode; if the signal variation does not exist, the signal variation is transmitted to a second judgment module (43);
the second judging module (43) is used for judging whether at least one signal variation is larger than a second threshold (Z2) when any signal variation is not larger than the first threshold (Z1); if the touch control mode exists, controlling the double-sided touch control transparent display panel to be switched to a second touch control mode; if not, judging that touch control is not performed;
the touch coordinate calculation module (44) is configured to calculate a first touch coordinate (A1) according to the signal variation greater than the first threshold (Z1) and the corresponding signal point (36) in the first touch mode; the touch coordinate calculation module (44) is further configured to calculate a second touch coordinate (A2) according to the signal variation greater than the second threshold (Z2) and the corresponding signal point (36) in the second touch mode;
-the function control module (45) is configured to perform, in the first touch mode, an operation related to the first touch surface (20a) according to the first touch coordinates (a 1); the function control module (45) is further configured to perform an operation associated with the second touch surface (20b) in accordance with the second touch coordinate (a2) in the second touch mode.
5. The dual-sided touch transparent display panel according to claim 1, wherein the light emitting layer (21) comprises at least one of an organic light emitting diode, a quantum dot light emitting diode, and a micro light emitting diode.
6. The dual-sided touch transparent display panel according to claim 5, wherein the light emitting layer (21) comprises a plurality of pixel units, each pixel unit is provided with an anode (211) and a cathode (213), and the anode (211) and the cathode (213) are formed of a transparent conductive material.
7. The dual-sided touch-sensitive transparent display panel according to claim 1, wherein the touch-sensitive electrode (30) comprises a plurality of first electrode stripes (31), an insulating layer (32), and a plurality of second electrode stripes (33); the plurality of first electrode strips (31) are insulated from each other at intervals and are positioned on the first touch control surface (20a), the insulating layer (32) covers the plurality of first electrode strips (31), and the plurality of second electrode strips (33) are insulated from each other at intervals and are positioned on the insulating layer (32); the first electrode strips (31) and the second electrode strips (33) are insulated and crossed.
8. The dual-sided touch transparent display panel according to claim 7, wherein the first electrode bars (31) are configured to receive a touch driving signal, and the second electrode bars (33) are configured to detect the touch position and output the touch detection signal;
or, the plurality of first electrode bars (31) are used for detecting the touch position and outputting the touch detection signal, and the plurality of second electrode bars (33) are used for receiving the touch driving signal.
9. A driving method of a double-sided touch transparent display panel, which is suitable for the double-sided touch transparent display panel according to any one of claims 1 to 8, the driving method comprising:
acquiring the signal variation of each signal point (36) according to the touch detection signal;
determining whether there is at least one of the signal variations that is greater than a first threshold (Z1);
if so, calculating a first touch coordinate (A1) based on the signal variation greater than the first threshold (Z1) and the corresponding signal point (36), and performing an operation with respect to the first touch surface (20a) based on the first touch coordinate (A1);
if not, judging whether at least one signal variation is larger than a second threshold value (Z2); if so, calculating a second touch coordinate (A2) based on the signal variation greater than the second threshold (Z2) and the corresponding signal point (36), and performing an operation with respect to the second touch surface (20b) based on the second touch coordinate (A2); if not, judging that no touch is performed.
10. A display device comprising the double-sided touch transparent display panel according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877877.1A CN110703938B (en) | 2019-09-17 | 2019-09-17 | Double-sided touch transparent display panel, driving method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877877.1A CN110703938B (en) | 2019-09-17 | 2019-09-17 | Double-sided touch transparent display panel, driving method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110703938A true CN110703938A (en) | 2020-01-17 |
| CN110703938B CN110703938B (en) | 2023-07-25 |
Family
ID=69195532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910877877.1A Active CN110703938B (en) | 2019-09-17 | 2019-09-17 | Double-sided touch transparent display panel, driving method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110703938B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113554972A (en) * | 2020-04-08 | 2021-10-26 | 陈学仕 | Crosstalk improving method for QLED display panel and QLED display panel |
| WO2021244269A1 (en) * | 2020-06-03 | 2021-12-09 | 京东方科技集团股份有限公司 | Touch-control panel and driving method therefor, and display apparatus |
| CN114613827A (en) * | 2022-03-14 | 2022-06-10 | 苏州清越光电科技股份有限公司 | Display panel and display device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203630761U (en) * | 2013-12-17 | 2014-06-04 | 上海天马有机发光显示技术有限公司 | Touch type OLED display device |
| CN103927043A (en) * | 2013-12-26 | 2014-07-16 | 上海天马有机发光显示技术有限公司 | Double-face touch OLED (organic light emitting diode) display panel and touch display device |
| CN104281349A (en) * | 2014-09-25 | 2015-01-14 | 京东方科技集团股份有限公司 | Double-side touch substrate, double-side touch device and double-side touch display device |
| CN104538419A (en) * | 2014-12-12 | 2015-04-22 | 昆山国显光电有限公司 | Touching-type OLED double-sided display device |
| CN105630257A (en) * | 2014-10-27 | 2016-06-01 | 纬创资通股份有限公司 | Touch device and touch method |
| CN106158913A (en) * | 2016-07-19 | 2016-11-23 | 江西联思触控技术有限公司 | Two-sided touch-control OLED display panel |
| CN106415459A (en) * | 2016-09-17 | 2017-02-15 | 深圳市汇顶科技股份有限公司 | Touch pressure detection module and apparatus |
-
2019
- 2019-09-17 CN CN201910877877.1A patent/CN110703938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203630761U (en) * | 2013-12-17 | 2014-06-04 | 上海天马有机发光显示技术有限公司 | Touch type OLED display device |
| CN103927043A (en) * | 2013-12-26 | 2014-07-16 | 上海天马有机发光显示技术有限公司 | Double-face touch OLED (organic light emitting diode) display panel and touch display device |
| CN104281349A (en) * | 2014-09-25 | 2015-01-14 | 京东方科技集团股份有限公司 | Double-side touch substrate, double-side touch device and double-side touch display device |
| CN105630257A (en) * | 2014-10-27 | 2016-06-01 | 纬创资通股份有限公司 | Touch device and touch method |
| CN104538419A (en) * | 2014-12-12 | 2015-04-22 | 昆山国显光电有限公司 | Touching-type OLED double-sided display device |
| CN106158913A (en) * | 2016-07-19 | 2016-11-23 | 江西联思触控技术有限公司 | Two-sided touch-control OLED display panel |
| CN106415459A (en) * | 2016-09-17 | 2017-02-15 | 深圳市汇顶科技股份有限公司 | Touch pressure detection module and apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113554972A (en) * | 2020-04-08 | 2021-10-26 | 陈学仕 | Crosstalk improving method for QLED display panel and QLED display panel |
| WO2021244269A1 (en) * | 2020-06-03 | 2021-12-09 | 京东方科技集团股份有限公司 | Touch-control panel and driving method therefor, and display apparatus |
| US11874983B2 (en) | 2020-06-03 | 2024-01-16 | Beijing Boe Optoelectronics Technology Co., Ltd. | Touch panel, driving method and display device with transparent display and double-sided touch control |
| CN114613827A (en) * | 2022-03-14 | 2022-06-10 | 苏州清越光电科技股份有限公司 | Display panel and display device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110703938B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10895937B2 (en) | Touch screen and manufacturing method thereof, display device | |
| US10872223B2 (en) | Fingerprint recognizer, fingerprint recognition method, light emitter device, optical sensor, and display device | |
| CN109144311B (en) | Display substrate, fingerprint identification method and touch display device | |
| US9153629B2 (en) | In-cell OLED touch display panel structure of narrow border | |
| CN110557963B (en) | Touch input device capable of detecting pressure suitable for display noise compensation | |
| CN110703938B (en) | Double-sided touch transparent display panel, driving method thereof and display device | |
| EP3125023A1 (en) | Smartphone | |
| KR101820307B1 (en) | Touch detector performing pressure detection accuracy correction method and touch input device including the same | |
| US10949040B2 (en) | Pressure sensor constituting plurality of channels, touch input device including same, and pressure detection method in which same is used | |
| US20140362045A1 (en) | Input interface, handheld electronic device and method of producing an input interface | |
| US20070242054A1 (en) | Light transmission touch panel and manufacturing method thereof | |
| EP3136210A1 (en) | Pressure detector capable of adjusting pressure sensitivity and touch input device including the same | |
| CN105045435B (en) | A kind of In-cell touch panel and display device | |
| US20180232092A1 (en) | Touch input device | |
| US10139977B2 (en) | Touch display device and method of driving the same | |
| US9236421B2 (en) | In-cell active matrix OLED touch display panel structure of narrow border | |
| KR101838569B1 (en) | Touch input device | |
| CN107103875B (en) | Flexible display panel, operation method thereof and flexible display device | |
| CN101634920A (en) | Display device and method for determining touch position thereon | |
| KR101852413B1 (en) | Pressure sensor detecting mulpiple pressure and touch input device including the same | |
| KR101865303B1 (en) | Touch Input Apparatus | |
| US10886338B2 (en) | Touch panel, method for driving the same, and touch device | |
| US10332942B2 (en) | OLED touch display panel | |
| CN109189268B (en) | Organic light emitting diode touch panel and method of forming the same | |
| KR101895594B1 (en) | Object displaying method for distinguishing applacations having a touch pressure function and a mobile terminal using the same |
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 |