CN108415612B - Touch device, touch display panel, display device and control method thereof - Google Patents
Touch device, touch display panel, display device and control method thereof Download PDFInfo
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- 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
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Abstract
The invention discloses a touch device, a touch display panel, a display device and a control method thereof, wherein the touch device has a plane state and a bending state and comprises the following components: the touch substrate comprises a first substrate part and a second substrate part, and when the touch substrate is in a bent state, the two substrate parts rub against each other to respectively generate positive charges and negative charges; the touch control electrodes are arranged on one side of the touch control substrate and comprise two types of touch control electrodes, when the touch control device is in a plane state, the touch control electrodes are used for detecting touch control signals, and when the touch control device is in a bending state, the two types of touch control electrodes are respectively used for transmitting charges generated by the two substrate parts; the first signal line is electrically connected with the first touch electrode; the second signal line is electrically connected with the second touch electrode; and the charge processing circuit is electrically connected with the first signal wire and the second signal wire respectively. According to the invention, the battery of the display device can be charged when the touch display panel is in a bent state.
Description
Technical Field
The present invention relates to the field of touch display technologies, and in particular, to a touch device, a touch display panel, a display device, and a control method thereof.
Background
With the development of technologies such as big data, cloud computing and mobile internet, people have fully entered the intelligent era, including intelligent mobile communication terminals, intelligent wearable and various other handheld intelligent devices, have become indispensable parts in work and life, and for facilitating human-computer interaction, most of the intelligent devices are provided with display panels, also called intelligent display devices, to provide more intuitive and friendly use functions.
In the prior art, the storage batteries of one part of the display device are generally heavier in weight and larger in size, which is inconvenient for lightening the display device, and the storage batteries of the other part of the display device are light and thin, but need to be frequently charged, which is inconvenient for users to use. Therefore, it is an urgent need to solve the problems in the art to provide a touch device, a touch display panel, a display device and a control method thereof, so that the display device is thinner and more convenient to charge.
Disclosure of Invention
In view of this, the invention provides a touch device, a touch display panel, a display device and a control method thereof, which solve the technical problems of the prior art that a storage battery of the display device is not light and thin enough and is inconvenient to charge.
In order to solve the above technical problems, the present invention provides a touch device.
The touch device has a planar state and a curved state, wherein a bending axis of the touch device in the curved state extends in a first direction, the touch device comprising: the touch control device comprises a touch control substrate, a first substrate part and a second substrate part, wherein when the touch control device is in the plane state, the first substrate part and the second substrate part are sequentially arranged in a second direction, when the touch control device is in the bending state, the first substrate part and the second substrate part rub against each other to respectively generate positive charges and negative charges, and the first direction is crossed with the second direction; the touch control device comprises a touch control substrate, a touch control electrode and a control circuit, wherein the touch control electrode is arranged on one side of the touch control substrate and comprises a first touch control electrode and a second touch control electrode, the touch control electrode is used for detecting a touch control signal when the touch control device is in the plane state, the first touch control electrode is used for transmitting positive charges generated by the first substrate part when the touch control device is in the bending state, and the second touch control electrode is used for transmitting negative charges generated by the second substrate part; the first signal wire is electrically connected with the first touch electrode; the second signal line is electrically connected with the second touch electrode; and a charge processing circuit electrically connected to the first signal line and the second signal line, respectively.
In order to solve the above technical problems, the present invention provides a touch display panel.
The touch display panel comprises any one of the touch devices provided by the invention, the touch display panel has a plane state and a bending state, and the touch display panel further comprises: a substrate base plate; a light emitting function layer disposed on one side of the substrate base plate; the packaging layer is arranged on one side, far away from the array substrate, of the luminescent material; the touch device is arranged on one side of the packaging layer far away from the light-emitting function layer, and the packaging layer and the touch electrode are arranged on the same side of the touch substrate.
In order to solve the above technical problem, the present invention provides a display device.
The display device comprises any one touch display panel provided by the invention, and further comprises: a shaft structure for holding the touch display panel in the bent state; and the shaft structure and the elastic support jointly act to enable the first substrate part and the second substrate part to generate electric charges by friction when the display device is subjected to external shock force.
In order to solve the above technical problem, the present invention provides a method for controlling a display device.
The display device is any one display device provided by the invention, and the control method comprises the following steps: detecting the state of a touch display panel of the display device; when the touch display panel is in a bent state, charging a battery of the display device through positive charges generated by the first substrate portion and negative charges generated by the second substrate portion; and when the touch display panel is in a plane state, detecting touch operation through the touch electrode.
Compared with the prior art, the touch device, the touch display panel, the display device and the control method thereof have the advantages that:
the touch device can normally detect a touch signal in a planar state, can generate positive and negative charges through friction of different parts of the touch substrate in a bending state, transmits the generated charges to the charge processing circuit through the touch electrode and the signal wire, and is stored and utilized by the electricity storage device after being processed by the charge processing circuit, so that for a display device comprising the touch device, electric energy generated by the touch device can automatically and randomly charge an electricity storage battery with smaller volume in the display device, through a brand new charging idea, the idea of increasing the volume of the electricity storage battery to increase the storage capacity of the battery in the prior art can be replaced, the technical problem that the volume of the electricity storage battery of the display device in the prior art is overlarge is solved, and the touch device provided by the embodiment can charge the display device without an external power supply, the technical problem of inconvenient charging of an electricity storage battery of a display device in the prior art is solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a touch device in a planar state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch device in a bent state according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of another touch device according to an embodiment of the invention in a planar state;
fig. 4 is a schematic diagram of a film structure of a touch display panel in a planar state according to an embodiment of the present invention;
fig. 5 is a schematic view of a film structure of another touch display panel according to an embodiment of the invention in a planar state;
fig. 6 is a schematic view of a partial film structure of another touch display panel according to an embodiment of the invention in a planar state;
fig. 7 is a schematic view of a film structure of a touch display panel in a planar state according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a touch display panel in a planar state according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display device in a bent state according to an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of a display device according to an embodiment of the invention;
fig. 11 is a schematic structural diagram of a smart watch according to an embodiment of the present invention;
fig. 12 is a flowchart illustrating a control method of a display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
This application is to display device's accumulate battery among the prior art not light thin enough and the inconvenient problem of charging, has carried out following research:
the display panel has a certain power consumption when displaying images, and needs to provide power through an electricity storage battery. However, in the prior art, if the charging frequency of the display device is to be reduced, only the storage battery with stronger storage capacity is used, and due to the restriction of the battery technology, the storage battery with larger volume and heavier weight is necessary, and the display device as a whole becomes too large, too thick and too heavy, which is inconvenient to carry and use, especially for the intelligent wearable device, when the size or weight of the wearable device is too large, the use comfort is seriously affected; if the small-size and light-weight electricity storage battery is adopted, the electricity storage capacity of the electricity storage battery is limited, at the moment, the electricity storage battery is charged by an external power supply frequently, so that the use is inconvenient, particularly, the display color of the current display panel is more bright, the display content is richer, and under the trend that the requirement on the electricity storage capacity of the electricity storage battery is higher, the charging process is more frequent due to the reduction of the volume of the electricity storage battery, therefore, in the prior art, the bottleneck of the light and thin development of the display device is formed between the volume of the electricity storage battery and the electricity storage capacity of the display device.
Based on the above-mentioned prior art, the present application provides a new charging method, which can increase the electric energy of the storage battery without an external power source, and specifically, the following detailed description is provided for each embodiment of the touch device, the touch display panel, the display device and the control method thereof.
Fig. 1 is a schematic structural diagram of a touch device in a planar state according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a touch device in a curved state according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, the touch device has a planar state and a curved state, and when the touch device is in the planar state, normal touch detection can be performed; after the touch device is bent along the bending axis AX extending in the first direction y, the touch device is in a bent state, when the touch device is in the bent state, the surfaces on two sides of the bending axis AX after the touch device is bent can be contacted and rubbed, electric charges are generated in the rubbing process, and the electric charges can be stored and utilized by the electric storage device after being processed. Specifically, the touch device includes a touch substrate 10, a touch electrode 20, a signal line 30, and a charge processing circuit 40.
The touch substrate 10 is made of a flexible material, is deformable and bendable, and includes a first substrate portion 11 and a second substrate portion 12, wherein, as shown in fig. 1, when the touch device is in a planar state, the first substrate portion 11 and the second substrate portion 12 are sequentially arranged in a second direction x, and are respectively located on two sides of a bending axis AX, and the first direction y intersects with the second direction x; as shown in fig. 2, when the touch device is in a bent state, the first substrate portion 11 and the second substrate portion 12 contact and rub each other, and during the rubbing process, the first substrate portion 11 generates a positive charge and the second substrate portion 12 generates a negative charge.
The touch electrode 20 is disposed on one side of the touch substrate 10, and when the touch device is in a planar state, the touch electrode 20 is used for detecting a touch signal; when the touch device is in a bending state, the touch electrode 20 is located on the convex side of the touch device, the touch substrate 10 is located on the concave side of the touch device, and charges generated by friction of the first substrate portion 11 and the second substrate portion 12 can be transmitted by the touch electrode 20. The touch electrode 20 includes a first touch electrode 21 and a second touch electrode 22, the first touch electrode 21 is electrically connected to the first substrate portion 11, the second touch electrode 22 is electrically connected to the second substrate portion 12, when the touch device is in a bending state, the first touch electrode 21 is used for transmitting positive charges generated by the first substrate portion 11, and the second touch electrode 22 is used for transmitting negative charges generated by the second substrate portion 12.
In one embodiment, the first touch electrode 21 is in direct contact with the first substrate portion 11 for electrical connection, and the second touch electrode 22 is in direct contact with the second substrate portion 12 for electrical connection; or, in another specific embodiment, the first touch electrode 21 is electrically connected to the first substrate portion 11 through an intermediate conductive structure, and the second touch electrode 22 is electrically connected to the second substrate portion 12 through another intermediate conductive structure; alternatively, the first touch electrode 21 is directly contacted with the first substrate portion 11 to achieve electrical connection, and the second touch electrode 22 is electrically connected with the second substrate portion 12 through another intermediate conductive structure, which is not limited in this application.
The signal line 30 includes a first signal line 31 and a second signal line 32, the first signal line 31 is electrically connected to the first touch electrode 21, the second signal line 32 is electrically connected to the second touch electrode 22, and the charge processing circuit 40 is electrically connected to the first signal line 31 and the second signal line 32, respectively. The first touch electrode 21 transmits the positive charges generated by the first substrate portion 11 to the first signal line 31 and then to the charge processing circuit 40 via the first signal line 31, and the second touch electrode 22 transmits the negative charges generated by the second substrate portion 12 to the second signal line 32 and then to the charge processing circuit 40 via the second signal line 32. The charge processing circuit 40 processes the received positive and negative charges, and the processed charges may be stored and utilized by the power storage device. The charge processing circuit 40 may be integrated in a single chip and bound to the touch substrate 10; alternatively, the charge processing circuit 40 may be integrated with other functional circuits in the same chip, which is not limited in this application.
It should be noted that the number and arrangement of the touch electrodes shown in fig. 1 are merely used to schematically illustrate the connection relationship between the signal lines and the charge processing circuit, and do not limit the present application.
By adopting the touch device provided by the embodiment, the touch device can normally detect a touch signal in a plane state, can generate positive and negative charges through friction of different parts of the touch substrate in a bending state, transmits the generated charges to the charge processing circuit through the touch electrode and the signal wire, and is stored and utilized by the electric storage device after being processed by the charge processing circuit, so that for a display device comprising the touch device, electric energy generated by the touch device can automatically and randomly charge an electric storage battery with smaller volume in the display device, through a brand new charging idea, the idea that the storage capacity of the battery is increased by increasing the volume of the electric storage battery in the prior art can be replaced, the technical problem that the volume of the electric storage battery of the display device is overlarge in the prior art is solved, and the touch device provided by the embodiment can charge the display device without an external power supply, the technical problem of inconvenient charging of an electricity storage battery of a display device in the prior art is solved.
Among them, in one embodiment, the first signal line 31 and the second signal line 32 are used alone as signal lines for transferring electric charges; in another embodiment, the first signal line 31 and the second signal line 32 are multiplexed into a signal line that transmits other signals at different time periods. Optionally, the touch device further includes a touch circuit, which may be integrated with the charge processing circuit 40 in the same chip or integrated in different chips respectively, for processing and recognizing the touch signal detected by the touch electrode 20. The first signal line 31 and the second signal line 32 are respectively connected to a touch circuit, and when the touch device is in a planar state, the first signal line 31 and the second signal line 32 are multiplexed as a touch signal line, and a signal line for transmitting charges by a touch signal detected by the touch electrode 20 is transmitted to the touch circuit, and the touch circuit performs touch identification according to the touch signal; when the touch device is in a bent state, the first signal line 31 and the second signal line 32 are multiplexed into a signal line for transferring charges, the charges of the touch substrate 10 received by the touch electrode 20 are transferred to the charge processing circuit 40, and the charge processing circuit 40 performs charge processing.
With the touch device provided in this embodiment, the first signal line and the second signal line are respectively connected to the touch circuit and the charge processing circuit, and transmit the touch signal when the touch device is in a planar state and transmit the charge when the touch device is in a bent state, so that time-division multiplexing of the first signal line and the second signal line is realized, and routing in the touch device is reduced.
Optionally, the touch electrodes implement touch detection based on a mutual capacitance principle, fig. 3 is a schematic structural diagram of another touch device according to an embodiment of the present invention in a planar state, as shown in fig. 3, the touch electrodes include a first electrode 23 extending along a first direction y and a second electrode 24 extending along a second direction x, and the first electrode 23 and the second electrode 24 are intersected with each other to implement mutual capacitance touch detection.
Wherein the first electrode 23 and the second electrode 24 may be formed as electrodes extending in the first direction y and the second direction x, respectively, in such a manner that the block electrodes are connected to each other as shown in fig. 3; alternatively, the first electrode 23 and the second electrode 24 are strip-shaped electrodes extending in the first direction y and the second direction x, respectively; alternatively, the first electrode 23 and the second electrode 24 may employ grid-shaped electrodes formed as electrodes extending in the first direction y and the second direction x, respectively. It should be noted that, in the present application, specific structures of the first electrode 23 and the second electrode 24 are not limited, and any structure may be adopted, and mutual capacitance type touch detection may be implemented.
For the first electrode 23 and the second electrode 24, when the touch detection is implemented, one of the first electrode 23 and the second electrode 24 is a touch driving electrode, receives a driving signal of the touch circuit 50, and the other is a touch detection electrode, and transmits a touch signal to the touch circuit 50. Taking the first electrode 23 as a touch driving electrode and the second electrode 24 as a touch detecting electrode, for example, the first electrode 23 receives a driving signal of the touch circuit 50 through the third signal line 33, and the second electrode 24 transmits a touch signal to the touch circuit 50 through the fourth signal line 34.
For the first electrode 23 and the second electrode 24, when charge transfer is realized, both the first touch electrode 21a (21b) and the second touch electrode 22a (22b) are the first electrode 23, and the second electrode 24 is not used for charge transfer; the first signal line 31a1(31a2, 31b1, and 31b2) and the second signal line 32a1(32a2, 32b1, and 32b2) are both the third signal line 33, and the fourth signal line 34 is not used for charge transfer. Alternatively, the touch electrodes are projected toward the touch substrate, the first electrode 23 orthographically projected in the first substrate portion 11 serves as a first touch electrode, and the first electrode 23 orthographically projected in the second substrate portion 12 serves as a second touch electrode. Meanwhile, in one embodiment, when the touch electrode is in contact with the touch substrate, the second electrode 24 orthographically projected in the first substrate portion 11 and the second electrode 24 orthographically projected in the second substrate portion 12 are insulated from each other.
In fig. 3, the first signal lines 31a1 and 31a2 connected to the first touch electrode 21a transmit the positive charges generated in the first substrate portion 11 received by the first touch electrode 21a to the charge processing circuit 40; the first signal lines 31b1 and 31b2 connected to the first touch electrode 21b transmit the positive charges generated in the first substrate portion 11 received by the first touch electrode 21b to the charge processing circuit 40; the second signal lines 32a1 and 32a2 connected to the second touch electrode 22a transmit the positive charges generated from the second substrate portion 12 received by the second touch electrode 22a to the charge processing circuit 40; the second signal lines 32b1 and 32b2 connected to the second touch electrode 22b transmit the positive charges generated from the second substrate portion 12 received by the second touch electrode 22b to the charge processing circuit 40.
Alternatively, the charge processing circuit 40 and the touch control circuit 50 are integrated on the same chip, and each signal line is connected to a pin of the chip to realize connection with the charge processing circuit 40 and the touch control circuit 50.
By adopting the embodiment, friction electrification can be realized on the touch device based on the mutual capacitance type touch detection principle, so that the display device can be charged without an external power supply, and the first electrodes in the same direction as the bending axis in the extending direction are used as the touch electrodes for transmitting charges, and each touch electrode for transmitting charges does not cross the first substrate part and the second substrate part in the orthographic projection of the touch substrate, so that the first touch electrode and the second touch electrode are easy to realize mutual insulation, and the complexity of the touch device is reduced.
Optionally, the touch electrodes implement touch detection based on a self-capacitance principle, please refer to fig. 1 again, each touch electrode 20 is a block electrode, and the plurality of touch electrodes 20 form a matrix array to implement touch signal detection.
When the touch detection is implemented, each touch electrode 20 receives a driving signal of the touch circuit 50 and transmits a touch signal to the touch circuit 50. When the charge transmission is implemented, optionally, the touch electrode 20 is projected toward the touch substrate 10, the touch electrode 20 projected in the first substrate portion 11 serves as a first touch electrode 21, the touch electrode 20 projected in the second substrate portion 12 serves as a second touch electrode 22, the first touch electrode 21 transmits positive charge to the charge processing circuit 40 through the first signal line 31, and the second touch electrode 22 transmits negative charge to the charge processing circuit 40 through the second signal line 32. Alternatively, the charge processing circuit 40 and the touch control circuit 50 are integrated on the same chip, and each signal line is connected to a pin of the chip to realize connection with the charge processing circuit 40 and the touch control circuit 50.
By adopting the embodiment, triboelectrification can be realized on the touch device based on the self-capacitance type touch detection principle.
Alternatively, with continued reference to fig. 1, the material of the first substrate portion 11 is Polydimethylsiloxane (PDMS), and the material of the second substrate portion 12 is Polyimide (PI).
By adopting the touch device provided by the embodiment, the two parts of the touch substrate are formed by the polydimethylsiloxane and the polyimide, so that charge separation can be generated after friction, and further potential difference is generated.
Optionally, with continuing reference to fig. 1, the transmittances of the first substrate portion 11 and the second substrate portion 12 in a third direction are the same, where the third direction is perpendicular to the first direction x and the second direction y, respectively, in fig. 1, a top view of the touch device is shown, and the third direction is a direction perpendicular to the observation plane of fig. 1, that is, a thickness direction of the touch device.
By adopting the touch device provided by the embodiment, when the touch device is applied to a display device, the transmittance of the first substrate part and the transmittance of the second substrate part in the third direction are set to be the same, so that the light loss of light passing through the touch substrate in the display device is the same, and the influence of the touch device on the display uniformity of the display device is avoided.
In one embodiment, different materials are used to ensure that the first substrate portion and the second substrate portion generate electricity due to friction, and the transmittance of the first substrate portion and the transmittance of the second substrate portion in the third direction are the same, so that the thicknesses of the first substrate portion and the second substrate portion in the third direction are different, and in this case, in order to reduce the thickness difference, compensation can be performed by adding other film layers such as optical cement with different thicknesses to different substrate portions.
Optionally, with continued reference to fig. 3, the touch device includes a touch flexible circuit board 60, the touch flexible circuit board 60 is bound on the touch substrate, and the charge processing circuit 40 and the touch circuit 50 are integrated in the same chip, which is disposed on the touch flexible circuit board 60.
The above is an embodiment of the touch device provided by the present invention, and the present invention further provides a touch display panel including any one of the above touch devices, which has the technical features and corresponding technical effects of the above touch device, and the following will describe in detail an embodiment of the touch display panel provided by the present application.
In one embodiment, the touch display panel is a flexible panel, and includes any one of the touch devices described above, and has a planar state and a curved state, when the touch display panel is in the planar state, the touch device is also in the planar state, the touch display panel can perform image display and touch operation, when the touch display panel is in the curved state, the touch device is also in the curved state, and in the touch device of the touch display panel, the touch electrode and the signal line can transmit charges generated by rubbing two portions of the touch substrate to the charge processing circuit. Fig. 4 is a schematic diagram of a film structure of a touch display panel in a planar state according to an embodiment of the present invention, and as shown in fig. 4, in a third direction z, the touch display panel includes a substrate 01, a light-emitting functional layer 02, an encapsulation layer 03, and a touch device 04, where when the touch display panel is in a bent state, the substrate 01 is located on a convex side of the touch display panel, and the touch device 04 is located on a concave side of the touch display panel.
The substrate base plate 01 comprises a flexible substrate and a display control circuit arranged on the flexible substrate; the light emitting function layer 02 includes a display material, which may be liquid crystal, organic light emitting display material (OLED), or electrophoretic particles, etc.; the packaging layer 03 is arranged on one side, away from the substrate base plate 01, of the light-emitting functional layer 02 and used for packaging the display material of the light-emitting functional layer 02; the touch device 04 is located on one side of the encapsulation layer away from the light-emitting functional layer, the encapsulation layer 03 and the touch electrode 20 are disposed on the same side of the touch substrate 10, and the touch substrate 10 is reused as a cover plate layer of the touch display panel. In the manufacturing process, the touch substrate 10 and the touch electrode 20 may be combined with other film layers of the touch display panel after the touch substrate and the touch electrode 20 are manufactured, or the touch electrode 20 and the touch substrate 10 may be manufactured sequentially after an encapsulation layer is formed.
Optionally, fig. 5 is a schematic diagram of a film structure of another touch display panel in a planar state according to an embodiment of the present invention, and as shown in fig. 5, in a third direction z, the touch display panel includes a back plate 05, a substrate 01, a light-emitting functional layer 02, an encapsulation layer 03, a polarizer 06, a touch device 04, and a display flexible circuit board 08. When the touch display panel is in a bent state, the back plate 05 is located on the convex side of the touch display panel, and the touch device 04 is located on the concave side of the touch display panel.
The backboard 05 is positioned on one side of the substrate base plate 01 far away from the light-emitting functional layer 02; the substrate 01 includes a flexible base 70 and a thin film transistor array 80 on the flexible base 70; the light-emitting functional layer 02 is an organic light-emitting material (OLED), and the encapsulation layer 03 forms encapsulation of the organic light-emitting material; a polarizer 06 is arranged on one side of the packaging layer 03 far away from the light-emitting functional layer 02, so that the light-emitting rate of the touch display panel is improved; the touch electrode 20 and the touch substrate 10 are formed on the polarizer 06, wherein it should be noted that the touch device 04 in fig. 5 only shows a partial structure, and the signal lines are not shown in the drawings, and reference may be made to the foregoing description and the corresponding drawings for related matters. The packaging adhesive 07 is located at a portion of a display panel frame region between the substrate 01 and the touch electrode 20, and is close to the third direction c, a touch flexible circuit board 60 is bound to one side close to the touch electrode 20, a first integrated circuit chip integrating a charge processing circuit and a touch circuit is arranged on the touch flexible circuit board 60, a display flexible circuit board 08 is bound to one side close to the substrate 01, and a second integrated circuit chip integrating a display control related circuit is arranged on the display flexible circuit board 08.
Further, fig. 6 is a schematic diagram of a partial film structure of another touch display panel according to an embodiment of the present invention in a planar state, as shown in fig. 6, where fig. 6 only shows a partial structure of the touch display panel, and referring to fig. 6 and fig. 5, the touch display panel shown in fig. 6 is different from the touch display panel shown in fig. 5 in that the touch display panel further includes an optical adhesive layer 09, the optical adhesive layer 09 is disposed between the polarizer 06 and the touch electrodes, when the thickness difference between the first substrate portion 11 and the second substrate portion 12 in the third direction c occurs to achieve the same transmittance, the optical adhesive layer 09 can fill up the thickness difference between the first substrate portion 11 and the second substrate portion 12, on one hand, the first substrate portion 11 and the second substrate portion 12 can be made of different materials to meet the requirement of generating charges by friction, in a second aspect, for the first substrate portion 11 and the second substrate portion 12 made of different materials, when the transmittance of the two portions is defined to be consistent and the thickness difference occurs, the thickness difference is filled up by the adhesive layer, so that the transmittance difference can be satisfied and the overall thickness of the touch display panel is uniform.
Optionally, fig. 7 is a schematic view of a film structure of a touch display panel in a planar state according to an embodiment of the present invention, as shown in fig. 7, the light-emitting functional layer 02 includes a plurality of pixels P, each of the pixels P has an opening, the touch display panel emits light at the opening of the pixel P, and a dark area is formed at a non-opening P' of the touch display panel for disposing signal traces and the like. An orthographic projection of the boundary Y of the first substrate portion 11 and the second substrate portion 12 on the light-emitting functional layer 02 is located at the non-opening P' of the pixel P.
By adopting the touch display panel provided by the embodiment, the boundary between the first substrate part and the second substrate part is arranged at the non-opening of the pixel, so that the influence of the boundary on the display of the touch display panel is avoided, and the display effect is improved.
Optionally, fig. 8 is a schematic structural diagram of a touch display panel in a planar state according to an embodiment of the present invention, and as shown in fig. 8, the touch display panel in the planar state includes a first panel portion a, a second panel portion B, a third panel portion C, and a fourth panel portion D, where the first panel portion a and the second panel portion B2 are located on two sides of the third panel portion 3 in the first direction y, the fourth panel portion D and the third panel portion C are sequentially arranged in the second direction x, the third panel portion C includes a first substrate portion 11, and the fourth panel portion D includes a second substrate portion 12, and when the touch display panel provided in this embodiment is in the planar state, the first panel portion a, the second panel portion C, and the fourth panel portion C are sequentially arranged in the second direction x The second panel part B, the third panel part C and the fourth panel part D can display images and/or characters according to requirements, when the touch display panel is in a bending state, the third panel part C and the fourth panel part D are bent oppositely, the opposite side surfaces of the third panel part C and the fourth panel part D rub against each other to respectively generate positive and negative charges, and the first panel part A and the second panel part B can still normally display contents.
By adopting the touch display panel provided by the embodiment, when the touch display panel is in a planar state, the touch display panel has a larger display area, and can display complex images, graphs and characters, when the touch display panel is in a bent state, parts of the panel rub against each other to generate charges, and parts of the panel can still display some simple contents, such as time information, charging prompt information, network signal information, mode information and the like, so that the user experience is improved.
Further preferably, when the touch display panel is in a bent state, the first panel part a is used for displaying first text information, the second panel part B is used for displaying second text information, and the third panel part C and the fourth panel part D do not display content; when the touch display panel is in a planar state, the third panel portion C and the fourth panel portion D are used for displaying images. For example, most of the time of the touch display panel is in a bent state, the time is displayed on the first panel part a when the touch display panel is used for watching time at ordinary times, the date is displayed on the second panel part B when the touch display panel is used for watching date at ordinary times, when some complex information or video information needs to be watched, the folded third panel part C and the folded fourth panel part D are unfolded, and the picture is displayed on the third panel part C and the fourth panel part D.
The present invention also provides a display device including any one of the above touch display panels, which has the technical features and corresponding technical effects of the touch display panel, and the embodiments of the display device provided in the present application will be described in detail below.
In an embodiment, fig. 9 is a schematic structural diagram of a display device in a bent state according to an embodiment of the present invention, as shown in fig. 9, the display device includes a touch display panel 1, a shaft structure 2 and an elastic support structure 3, where the shaft structure 2 is used to maintain the touch display panel 1 in the bent state, the elastic support structure 3 is used to apply an elastic force away from each other to the touch display panel 1 in the bent state, and the shaft structure 2 and the elastic support structure 3 cooperate to enable a first substrate portion 11 and a second substrate portion 12 to generate electric charges by friction when the display device is subjected to an external shock force, and it should be noted that static electricity, i.e., friction electricity generation, can be generated by a continuous contact/separation process of the first substrate portion 11 and the second substrate portion 12.
With the display device provided in this embodiment, when the display device is in a bent state, the two mechanisms are engaged, that is, the shaft structure and the elastic support structure are used, the shaft structure maintains a fastening state of the surface of the display device (that is, the surface of the touch substrate) when the display device is not opened, and the elastic support structure provides a separating force to the surface, that is, the surface can be slightly stretched when the external force vibrates. Therefore, when the display device vibrates in the carrying process, the shaft structure and the elastic supporting structure interact, the surface can be repeatedly and slightly unfolded/folded, the first substrate part and the second substrate part are driven to repeatedly rub, and electric charges are generated.
Alternatively, fig. 10 is a schematic circuit diagram of a display device according to an embodiment of the present invention, as shown in fig. 10, the display device includes a touch display panel, a main control board 4 and a battery 5, wherein the touch display panel includes a touch device, the touch device includes a first substrate portion 11, a second substrate portion 12 and a charge processing circuit 40, as described in the foregoing embodiments, when the touch device is in a bent state, the first substrate portion 11 and the second substrate portion 12 rub against each other to generate charges, and the charges are transmitted to the charge processing circuit 40 for processing, the charge processing circuit 40 is electrically connected to the main control board 4, the main control board 4 is electrically connected to the battery, so that the positive charges generated by the first substrate portion 11 are transmitted to a positive electrode of the battery 5, the negative charges generated by the second substrate portion 12 are transmitted to a negative electrode of the battery 5, so that when the display device is in the bent state, the battery 5 can be charged by the electric charge generated by the friction of the first substrate portion 11 and the second substrate portion 12.
Optionally, with continued reference to fig. 10, the display device further includes a state detection module 6 electrically connected to the main control board 4, and the state detection module 6 may detect a state of the touch display panel in a bending state or a planar state by detecting a state of the shaft structure and/or the elastic support structure, or detecting a relative position relationship between the first substrate portion and the second substrate portion in the touch display panel, and transmit the detected state information to the main control board 4, and the main control board 4 controls the touch display panel to display an image or charge the battery 5.
The display device provided by each embodiment can be a mobile phone, an intelligent wearable device and other portable display devices, and the battery can be charged in the process of carrying and moving by a user. Optionally, the watch includes a watchband and the touch display panel provided by the present invention, optionally, fig. 11 is a schematic structural diagram of an intelligent watch according to an embodiment of the present invention, and referring to fig. 8 and fig. 11, the watch includes a watchband E and the touch display panel shown in fig. 8, where a first panel portion a and a second panel portion B of the touch display panel are respectively connected to the watchband.
The present invention also provides a control method for controlling any one of the above display devices, and based on the display device with any one of the above structures, embodiments of the control method for a display device provided by the present application will be described in detail below.
In an embodiment, fig. 12 is a flowchart of a control method of a display device according to an embodiment of the present invention, and as shown in fig. 12, the control method includes steps S101 to S103 as follows:
step S101: the state of a touch display panel of the display device is detected.
The state detection module can be used for detecting the state of the touch display panel, and the detected state information comprises that the touch display panel is in a plane state or a bending state.
Step S102: when the touch display panel is in a bent state, a battery of the display device is charged by positive charges generated by the first substrate portion and negative charges generated by the second substrate portion.
When the touch display panel is in a bent state, the first substrate part and the second substrate part are repeatedly unfolded and contacted with each other due to vibration, electric charges are generated by friction, and the electric charges are transmitted to the electric charge processing circuit through the touch electrodes and the signal lines and then to the main control panel so as to charge the battery of the display device.
Step S103: when the touch display panel is in a planar state, touch operation is detected through the touch electrode.
When the touch display panel is in a planar state, the touch display panel normally displays images, and the touch operation is normally detected through the touch electrodes.
As can be seen from the above embodiments, the touch device, the touch display panel, the display device and the control method thereof of the present invention achieve the following advantages:
the touch device can normally detect a touch signal in a planar state, can generate positive and negative charges through friction of different parts of the touch substrate in a bending state, transmits the generated charges to the charge processing circuit through the touch electrode and the signal wire, and is stored and utilized by the electricity storage device after being processed by the charge processing circuit, so that for a display device comprising the touch device, electric energy generated by the touch device can automatically and randomly charge an electricity storage battery with smaller volume in the display device, through a brand new charging idea, the idea of increasing the volume of the electricity storage battery to increase the storage capacity of the battery in the prior art can be replaced, the technical problem that the volume of the electricity storage battery of the display device in the prior art is overlarge is solved, and the touch device provided by the embodiment can charge the display device without an external power supply, the technical problem of inconvenient charging of an electricity storage battery of a display device in the prior art is solved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (17)
1. A touch device having a planar state and a curved state, wherein a bending axis of the touch device in the curved state extends in a first direction, the touch device comprising:
the touch control device comprises a touch control substrate, a first substrate part and a second substrate part, wherein when the touch control device is in the plane state, the first substrate part and the second substrate part are sequentially arranged in a second direction, when the touch control device is in the bending state, the first substrate part and the second substrate part rub against each other to respectively generate positive charges and negative charges, and the first direction is crossed with the second direction;
the touch control device comprises a touch control substrate, a touch control electrode and a control circuit, wherein the touch control electrode is arranged on one side of the touch control substrate and comprises a first touch control electrode and a second touch control electrode, the touch control electrode is used for detecting a touch control signal when the touch control device is in the plane state, the first touch control electrode is used for transmitting positive charges generated by the first substrate part when the touch control device is in the bending state, and the second touch control electrode is used for transmitting negative charges generated by the second substrate part;
the first signal wire is electrically connected with the first touch electrode;
the second signal line is electrically connected with the second touch electrode;
and a charge processing circuit electrically connected to the first signal line and the second signal line, respectively.
2. The touch device of claim 1, further comprising:
and the touch circuit is electrically connected with the first signal line and the second signal line respectively.
3. The touch device of claim 1,
the touch control electrodes comprise a first electrode extending along the first direction and a second electrode extending along the second direction, wherein the first electrode and the second electrode are used for realizing mutual capacitance type touch control detection;
the first touch electrode and the second touch electrode are both the first electrode.
4. The touch device of claim 1,
the touch device is a self-capacitance touch device.
5. The touch device of claim 1,
the material of the first substrate part is polydimethylsiloxane, and the material of the second substrate part is polyimide.
6. The touch device of claim 1,
the first substrate portion and the second substrate portion have the same transmittance in a third direction, wherein the third direction is perpendicular to the first direction and the second direction, respectively.
7. The touch device of claim 1,
the touch device comprises a touch flexible circuit board, and the charge processing circuit is arranged on the touch flexible circuit board.
8. A touch display panel comprising the touch device according to any one of claims 1 to 7, wherein the touch display panel has a planar state and a curved state, the touch display panel further comprising:
a substrate base plate;
a light emitting function layer disposed on one side of the substrate base plate;
the packaging layer is arranged on one side, far away from the substrate, of the light-emitting functional layer;
the touch device is arranged on one side of the packaging layer far away from the light-emitting function layer, and the packaging layer and the touch electrode are arranged on the same side of the touch substrate.
9. The touch display panel of claim 8, further comprising:
the polaroid is arranged between the packaging layer and the touch electrode;
and the optical adhesive layer is arranged between the polaroid and the touch electrode, and can fill up the thickness difference between the first substrate part and the second substrate part.
10. The touch display panel of claim 9, wherein,
when the touch display panel is in the planar state, the touch display panel comprises a first panel part, a second panel part, a third panel part and a fourth panel part, wherein the first panel part and the second panel part are positioned on two sides of the third panel part in the first direction, and the fourth panel part and the third panel part are sequentially arranged in the second direction;
the third panel portion includes the first substrate portion and the fourth panel portion includes the second substrate portion.
11. The touch display panel of claim 10,
when the touch display panel is in the bent state, the first panel part is used for displaying first text information, and the second panel part is used for displaying second text information;
when the touch display panel is in the planar state, the third panel part and the fourth panel part are used for displaying images.
12. The touch display panel of claim 8,
the light emitting function layer includes a plurality of pixels having openings, and orthographic projections of boundaries of the first substrate portions and the second substrate portions on the light emitting function layer are located at non-openings of the pixels.
13. A display device comprising the touch display panel according to any one of claims 8 to 12, further comprising:
a shaft structure for holding the touch display panel in the bent state;
and the shaft structure and the elastic support structure act together to enable the first substrate part and the second substrate part to generate electric charges by friction when the display device is subjected to external shock force.
14. The display device according to claim 13, comprising:
the main control board is electrically connected with the charge processing circuit;
a battery electrically connected to the main control board, wherein positive charges generated by the first substrate portion are transferred to a positive electrode of the battery, and negative charges generated by the second substrate portion are transferred to a negative electrode of the battery.
15. The display device according to claim 14, further comprising:
and the state detection module is electrically connected with the main control panel and used for detecting that the touch display panel is in the bending state or the plane state.
16. A display device as claimed in claim 14, characterised in that the display device is a watch.
17. A control method of a display device according to any one of claims 13 to 16, comprising:
detecting the state of a touch display panel of the display device;
when the touch display panel is in a bent state, charging a battery of the display device through positive charges generated by the first substrate portion and negative charges generated by the second substrate portion;
and when the touch display panel is in a plane state, detecting touch operation through the touch electrode.
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| CN111722741A (en) * | 2019-03-21 | 2020-09-29 | 南昌欧菲光科技有限公司 | Touch panel, touch display screen and multi-surface touch display equipment |
| CN110955356B (en) * | 2019-12-13 | 2023-10-17 | 武汉华星光电技术有限公司 | display device |
| CN112750845B (en) * | 2020-12-29 | 2024-05-17 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113437239B (en) * | 2021-06-24 | 2023-08-01 | 京东方科技集团股份有限公司 | Device for transferring charge and display equipment |
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