CN114299889A - Touch display method of electronic paper display device - Google Patents
Touch display method of electronic paper display device Download PDFInfo
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- CN114299889A CN114299889A CN202210006510.4A CN202210006510A CN114299889A CN 114299889 A CN114299889 A CN 114299889A CN 202210006510 A CN202210006510 A CN 202210006510A CN 114299889 A CN114299889 A CN 114299889A
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Abstract
The invention provides a touch display method of an electronic paper display device, which comprises the following steps: the control chip controls the driving scanning chip to send display signals to each electronic paper display unit through the driving line group so as to control the display picture of the electronic paper display device; the control chip controls and drives the scanning chip to respectively send scanning signals to each electronic paper display unit according to a set frequency and receives feedback signals of the scanning signals; and the driving scanning chip sends a feedback signal to the control chip in real time. When the feedback signal changes, the control chip controls the driving scanning chip to send a new display driving signal according to the coordinate position corresponding to the changed feedback signal, and controls each electronic paper display unit to display a new image; and when the feedback signal is not changed, the control chip controls the driving scanning chip to send the original display driving signal and controls each electronic paper display unit to display the original image. The invention can avoid using an extra mounted touch screen to realize the touch display of the electronic paper display device.
Description
Technical Field
The invention relates to the technical field of electronic paper touch display, in particular to a touch display method of an electronic paper display device.
Background
With the development of electronic paper display technology, electronic paper display devices are increasingly widely used. Meanwhile, with the development of touch display technology, the increase of touch function in the electronic paper display device is also a mainstream demand. According to the conventional electronic paper touch display device, the touch screen is additionally attached to the electronic paper display device on the basis of increasing the touch function, so that the thickness of the electronic paper display device is greatly increased, and the technical difficulty is increased for directly attaching the touch screen due to the matching difficulty of the additional touch screen to the electronic paper display device. Therefore, a touch method of the electronic paper display device is needed to avoid using an additional attached touch screen.
Disclosure of Invention
Therefore, the invention provides a touch display method of an electronic paper display device, so as to avoid using an additionally mounted touch screen to realize touch display of the electronic paper display device.
The invention provides a touch display method of an electronic paper display device, wherein the electronic paper display device comprises the following components: an electronic paper display layer; the electronic paper display layer comprises a plurality of electronic paper display units which are arranged in an array mode, each electronic paper display unit is connected with a driving scanning chip through a driving line group, and the driving scanning chip is connected with a control chip; the touch display method of the electronic paper display device comprises the following steps: the control chip controls the driving scanning chip to send display signals to each electronic paper display unit through the driving line group so as to control the display picture of the electronic paper display device; the control chip controls and drives the scanning chip to respectively send scanning signals to each electronic paper display unit according to a set frequency and receives feedback signals of the scanning signals; and the driving scanning chip sends a feedback signal to the control chip in real time. When the feedback signal changes, the control chip controls the driving scanning chip to send a new display driving signal according to the coordinate position corresponding to the changed feedback signal, and controls each electronic paper display unit to display a new image; and when the feedback signal is not changed, the control chip controls the driving scanning chip to send the original display driving signal and controls each electronic paper display unit to display the original image.
Optionally, the feedback signal is changed and is generated by touching the transparent cover plate layer.
Optionally, the electronic paper display device further includes: an anode layer and a cathode layer; the electronic paper display layer is positioned between the anode layer and the cathode layer; the transparent cover plate layer is positioned on the surface of one side, back to the electronic paper display layer, of the cathode layer; and a touch capacitor is formed between the transparent cover plate layer and the cathode layer.
Optionally, the step of touching the transparent cover plate layer changes a capacitance value of the touch capacitor; the change in the feedback signal is caused by a change in the capacitance of the touch capacitor.
Optionally, the driving line group includes a plurality of row driving line groups and a plurality of column driving line groups; each row driving line group comprises at least two row driving lines; each column driving line group comprises at least two column driving lines.
Optionally, each electronic paper display unit includes at least one electronic paper pixel unit, and each electronic paper pixel unit is connected to one row driving line and one column driving line.
Optionally, each electronic paper display unit includes nine electronic paper pixel units, each row driving line group includes three row driving lines, and each column driving line group includes three column driving lines; nine electronic paper pixel units are arranged in a3 × 3 array.
Optionally, the anode layer is a continuous whole-surface anode layer, and each electronic paper pixel unit is connected to the anode layer.
Optionally, the cathode layer includes a plurality of pixel cathode layers, and each pixel cathode layer is connected to one pixel unit of the electronic paper.
Optionally, the electronic paper pixel unit includes: electrophoretic microcapsules; the electrophoresis microcapsule comprises an electronic paper ink solution and at least two colors of electronic paper ink conductive particles, wherein the electronic paper ink conductive particles of different colors have different electric polarities.
The invention has the beneficial effects that:
the touch display method of the electronic paper display device comprises the steps of setting a driving scanning chip, and controlling an electronic paper display unit to display a new picture through the change of a feedback signal in a mode that the driving scanning chip sends a driving signal and simultaneously sends a scanning signal and receives the feedback signal. The touch display function can be realized by utilizing the original structure of the electronic paper display device, and a touch screen does not need to be additionally attached, so that the thickness of the electronic paper display device is reduced, and the processing difficulty is reduced.
Furthermore, a touch capacitor is formed between the transparent cover plate layer and the cathode layer, so that pressure is formed on the touch capacitor when the cover plate is touched, the distance between the upper surface of the touch cover plate and the cathode layer is changed, the capacitance value of the touch capacitor is changed, and then the feedback signal of the scanning signal at the position is changed, so that the driving scanning chip can receive the changed feedback signal.
Further, the electronic paper display unit may include a plurality of electronic paper pixel units therein. By grouping the plurality of electronic paper pixel units, the touch capacitance change in each group is larger than that of a single electronic paper pixel unit, the feedback signal is stronger and easier to monitor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart illustrating a touch display method of an electronic paper display device according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of the electronic paper display device when the electronic paper display device touches in the touch display method of the electronic paper display device according to an embodiment of the invention;
fig. 3 is a schematic arrangement diagram of pixel units and driving line groups of an electronic paper in the electronic paper display device in the touch display method of the electronic paper display device according to an embodiment of the invention.
Detailed Description
The invention provides a touch display method of an electronic paper display device, which is used for avoiding the use of an additionally mounted touch screen to realize touch display of the electronic paper display device.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Referring to fig. 1 to 3, the present embodiment provides a touch display method of an electronic paper display device. Wherein the content of the first and second substances,
the electronic paper display device includes: an electronic paper display layer 200; the electronic paper display layer 200 comprises a plurality of electronic paper display units arranged in an array, each electronic paper display unit is respectively connected with a driving scanning chip through a driving line group, and the driving scanning chip is connected with a control chip;
the touch display method of the electronic paper display device comprises the following steps:
the control chip controls the driving scanning chip to send display signals to each electronic paper display unit through the driving line group so as to control the display picture of the electronic paper display device;
the control chip controls and drives the scanning chip to respectively send scanning signals to each electronic paper display unit according to a set frequency and receives feedback signals of the scanning signals; and the driving scanning chip sends a feedback signal to the control chip in real time.
When the feedback signal changes, the control chip controls the driving scanning chip to send a new display driving signal according to the coordinate position corresponding to the changed feedback signal, and controls each electronic paper display unit to display a new image;
and when the feedback signal is not changed, the control chip controls the driving scanning chip to send the original display driving signal and controls each electronic paper display unit to display the original image.
Further, the electronic paper display device further includes:
an anode layer 100 and a cathode layer 300; the electronic paper display layer 200 is positioned between the anode layer 100 and the cathode layer 300;
the transparent cover plate layer 400, the transparent cover plate layer 400 is positioned on the surface of the cathode layer 300, which faces away from the electronic paper display layer 200; a touch capacitance 401 is formed between the transparent cover layer 400 and the cathode layer 300.
Further, the feedback signal changes, which is generated by touching the transparent cover plate layer.
Further, the step of touching the transparent cover plate layer changes the capacitance value of the touch capacitor; the change in the feedback signal is caused by a change in the capacitance of the touch capacitor.
In the touch display method of the electronic paper display device in the embodiment, the driving scanning chip is arranged, and the electronic paper display unit is controlled to display a new picture through the change of the feedback signal in a mode that the driving scanning chip sends the driving signal and simultaneously sends the scanning signal and receives the feedback signal. The touch display function can be realized by utilizing the original structure of the electronic paper display device, and a touch screen does not need to be additionally attached, so that the thickness of the electronic paper display device is reduced, and the processing difficulty is reduced.
Further, a touch capacitor 401 is formed between the transparent cover plate layer 400 and the cathode layer 300, so that pressure is formed on the touch capacitor 401 when the transparent cover plate layer 400 is touched, the distance between the upper surface of the touch cover plate layer 400 and the cathode layer 300 changes, the capacitance value of the touch capacitor 401 changes, and then the feedback signal of the scanning signal at the position changes, so that the driving scanning chip can receive the changed feedback signal.
Further, the driving line group includes a plurality of row driving line groups and a plurality of column driving line groups; each row driving line group comprises at least two row driving lines; each column driving line group comprises at least two column driving lines. Taking fig. 3 as an example, three row drive line groups of B1, B2, B3 and three column drive line groups of a1, a2, A3 may be included.
Each electronic paper display unit comprises at least one electronic paper pixel unit, and each electronic paper pixel unit is connected with a row driving line and a column driving line. Further, each e-paper pixel unit 201 is correspondingly connected with a touch capacitor 401. The e-paper pixel cell 201 and the corresponding touch capacitance 401 are connected in parallel.
Specifically, referring to fig. 3, in the present embodiment, each e-paper display unit includes nine e-paper pixel units 201, each row driving line group includes three row driving lines, and each column driving line group includes three column driving lines; nine electronic paper pixel units 201 are arranged in 3 × 3.
By grouping the plurality of electronic paper pixel units, the touch capacitance change in each group is larger than that of a single electronic paper pixel unit, the feedback signal is stronger and easier to monitor.
In addition, in the present embodiment, the anode layer is a continuous anode layer, and each pixel unit of the electronic paper is connected to the anode layer.
The cathode layer comprises a plurality of pixel cathode layers, and each pixel cathode layer is connected with one pixel unit of the electronic paper.
The electronic paper pixel unit includes: electrophoretic microcapsules; the electrophoresis microcapsule comprises an electronic paper ink solution and at least two colors of electronic paper ink conductive particles, wherein the electronic paper ink conductive particles of different colors have different electric polarities.
Different voltages are applied to the cathode and the anode, the electronic paper ink conductive particles in the electrophoresis microcapsule move upwards or downwards according to different electrical properties of the electronic paper ink conductive particles, and the electronic paper ink conductive particles with different colors are accumulated on the same side in the electrophoresis microcapsule, so that the electronic paper ink conductive particles show corresponding colors. And then the electronic paper display layer is formed by the electronic paper pixel units arranged in an array, and the display signals sent by the driving scanning chip control different electronic paper pixel units to display different colors, so that the display of images is realized.
The present invention has been described above by way of examples, and it is believed that one skilled in the art can appreciate the present invention by way of the above examples. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A touch display method of an electronic paper display device is characterized by comprising the following steps:
the electronic paper display device includes:
an electronic paper display layer; the electronic paper display layer comprises a plurality of electronic paper display units which are arranged in an array mode, each electronic paper display unit is connected with a driving scanning chip through a driving line group, and the driving scanning chip is connected with a control chip;
the touch display method of the electronic paper display device comprises the following steps:
the control chip controls the driving scanning chip to send display signals to each electronic paper display unit through the driving line group so as to control the display picture of the electronic paper display device;
the control chip controls the driving scanning chip to respectively send scanning signals to each electronic paper display unit according to a set frequency and receives feedback signals of the scanning signals; the driving scanning chip sends the feedback signal to the control chip in real time;
when the feedback signal changes, the control chip controls the driving scanning chip to send a new display driving signal according to the changed coordinate position corresponding to the feedback signal, and controls each electronic paper display picture to display a new image;
and when the feedback signal is unchanged, the control chip controls the driving scanning chip to send an original display driving signal and controls each electronic paper display unit to display an original image.
2. The touch display method of the electronic paper display device according to claim 1, wherein:
the feedback signal changes as a result of touching the transparent cover layer.
3. The touch display method of the electronic paper display device according to claim 2, wherein: the electronic paper display device further includes:
an anode layer and a cathode layer; the electronic paper display layer is positioned between the anode layer and the cathode layer;
the transparent cover plate layer is positioned on the surface of one side, back to the electronic paper display layer, of the cathode layer;
a touch capacitance is formed between the transparent cover plate layer and the cathode layer.
4. The touch display method of the electronic paper display device according to claim 3, wherein:
the step of touching the transparent cover layer changes a capacitance value of the touch capacitor;
the feedback signal changes due to a change in capacitance of the touch capacitor.
5. The touch display method of the electronic paper display device according to any one of claims 1 to 4, wherein:
the driving line group comprises a plurality of row driving line groups and a plurality of column driving line groups;
each row driving line group comprises at least two row driving lines;
each column driving line group comprises at least two column driving lines.
6. The touch display method of the electronic paper display device according to claim 5, wherein:
each electronic paper display unit comprises at least one electronic paper pixel unit, and each electronic paper pixel unit is connected with one row driving line and one column driving line.
7. The touch display method of the electronic paper display device according to claim 6, wherein:
each electronic paper display unit comprises nine electronic paper pixel units, each row driving line group comprises three row driving lines, and each column driving line group comprises three column driving lines; nine pixel units of the electronic paper are arranged according to 3 multiplied by 3.
8. The touch display method of the electronic paper display device according to claim 5, wherein:
the anode layer is a continuous whole-face anode layer, and each electronic paper pixel unit is connected to the anode layer.
9. The touch display method of the electronic paper display device according to claim 8, wherein:
the cathode layer comprises a plurality of pixel cathode layers, and each pixel cathode layer is connected with one pixel unit of the electronic paper.
10. The touch display method of the electronic paper display device according to claim 5, wherein:
the electronic paper pixel unit includes:
electrophoretic microcapsules; the electrophoresis microcapsule comprises an electronic paper ink solution and at least two colors of electronic paper ink conductive particles, wherein the electronic paper ink conductive particles of different colors have different electric polarities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210006510.4A CN114299889A (en) | 2022-01-05 | 2022-01-05 | Touch display method of electronic paper display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210006510.4A CN114299889A (en) | 2022-01-05 | 2022-01-05 | Touch display method of electronic paper display device |
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