CN215341025U - Touch panel and display device - Google Patents
Touch panel and display device Download PDFInfo
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- CN215341025U CN215341025U CN202120473642.9U CN202120473642U CN215341025U CN 215341025 U CN215341025 U CN 215341025U CN 202120473642 U CN202120473642 U CN 202120473642U CN 215341025 U CN215341025 U CN 215341025U
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Abstract
The utility model discloses a touch panel and a display device, wherein the touch panel is provided with a folding axis so that the touch panel can be bent along the folding axis, and the touch panel comprises: a plurality of transverse channels, wherein the transverse channels are arranged at intervals, and each transverse channel extends along the direction of the folding axis; and the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed manner, and fractures are arranged at the positions of the longitudinal channels, which are opposite to the folding axis, so as to form a first sub-longitudinal channel and a second sub-longitudinal channel. The fracture is arranged to divide the longitudinal channel into two parts, so that two sub-longitudinal channels capable of being independently controlled are formed, the problem that when the touch panel is folded to work, the touch action of a user is sensed by the channel on the back of the touch panel to interfere with the touch response on the front of the touch panel can be avoided, the touch performance is improved, and the user experience is improved.
Description
Technical Field
The utility model belongs to the technical field of electronics, and particularly relates to a touch panel and a display device using the same.
Background
With the development of technology, foldable display devices using flexible touch panels have become a new trend. The existing foldable display device can be applied to various occasions, for example, to electronic equipment such as a foldable mobile phone, but after the flexible touch panel is folded or bent, when a user holds the electronic equipment by hand, and the user performs a touch operation on the front side of the flexible touch panel (i.e., the side of the flexible touch panel facing the user), the touch effect of the front side can be affected by the finger of the user touching the back side of the flexible touch panel (i.e., the side of the flexible touch panel facing away from the user).
The current solution is to partially close the back sensing channel (i.e., RX channel 100) or the driving channel (i.e., TX channel 200) of the flexible touch panel after the flexible touch panel is folded or bent, so as to reduce the touch impact on the front side. For example, the flexible touch panel shown in fig. 1, when it is folded along the RX5 channel 105 for use, the RX6 channel 106 to RX9 channel 109 are closed, and the driving channels, i.e., the TX1 channel 201 to the TX7 channel 207, are all opened. The disadvantages of this solution are: although the back sensing channel is closed, the back driving channel still scans, or although the back driving channel is closed, the back sensing channel still scans, which has a certain influence on the touch effect of the front side, especially under the floating condition.
SUMMERY OF THE UTILITY MODEL
The utility model provides a touch panel and a display device aiming at the defects of the prior art, so as to avoid the problem that the touch response of the front side of the touch panel is interfered by the back side of the touch panel sensing the touch action of a user when the touch panel is folded, improve the touch performance and improve the user experience.
The present invention first provides a touch panel having a folding axis so that the touch panel can be bent along the folding axis, the touch panel including: a plurality of transverse channels, wherein the transverse channels are arranged at intervals, and each transverse channel extends along the direction of the folding axis; and the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed manner, and fractures are arranged at the positions of the longitudinal channels, which are opposite to the folding axis, so as to form a first sub-longitudinal channel and a second sub-longitudinal channel.
The present invention also provides a display device including: a touch panel and a touch IC configured to control the touch panel;
the touch panel has a folding axis so that the touch panel can be bent along the folding axis, the touch panel including: a plurality of transverse channels, wherein the transverse channels are arranged at intervals, and each transverse channel extends along the direction of the folding axis; and the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed manner, and fractures are arranged at the positions of the longitudinal channels, which are opposite to the folding axis, so as to form a first sub-longitudinal channel and a second sub-longitudinal channel.
The touch panel provided by the utility model divides the longitudinal channel into two parts by arranging the fracture to form two sub-longitudinal channels which can be independently controlled, when the touch panel is in an unfolded state, the two sub-longitudinal channels can be controlled to receive the same scanning signal or the short circuit in the touch IC to enable the two sub-longitudinal channels to make the same response to touch operation, when the touch panel is in a folded state, the transverse channel and the sub-longitudinal channels on the back of the touch panel are controlled to be disconnected and grounded, so that the scanning of the channel on the back is stopped, thereby avoiding the problem that the channel on the back of the touch panel is still scanned to generate interference on the touch response on the front of the touch panel when the touch panel is folded, improving the touch performance of the whole machine and improving the user experience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a touch panel of the prior art;
fig. 2 is a schematic structural diagram of a touch panel according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Furthermore, the following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the utility model may be practiced. Directional phrases used in this disclosure, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the utility model, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
An embodiment of the present invention provides a touch panel having a folding axis so that the touch panel can be bent along the folding axis, the touch panel including: the plurality of transverse channels are arranged at intervals, and each transverse channel extends along the folding axis direction; and the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed manner, and the longitudinal channels are provided with fractures at the positions opposite to the folding axis so as to form a first sub-longitudinal channel and a second sub-longitudinal channel.
The touch panel mentioned in the embodiments of the present invention is a foldable touch panel, and may include a flexible touch panel, and may also include a conventional hard-screen touch panel. The longitudinal channel is divided into two parts by the fracture, two sub-longitudinal channels which can be independently controlled are formed, when the touch panel is in an unfolded state, the two sub-longitudinal channels can be controlled to receive the same scanning signal or the short circuit inside the touch IC to enable the two sub-longitudinal channels to make the same response to touch operation, when the touch panel is in a folded state, the transverse channel and the sub-longitudinal channels on the back of the touch panel are controlled to be disconnected and grounded, the channel on the back stops scanning, and therefore the problem that the channel on the back is still capable of inducing the touch action of a user to generate interference on the touch response on the front of the touch panel is solved.
In the touch panel of the present embodiment, each of the horizontal channels extends along the folding axis, and each of the vertical channels is arranged along a direction perpendicular to the folding axis, so that the vertical channels and the horizontal channels are arranged perpendicularly and crosswise.
Referring to fig. 2, the touch panel includes a first display portion 10, a bending display portion 20 and a second display portion 30 that are sequentially distributed, the first display portion 10 is flexibly connected to the second display portion 30 through the bending display portion 20, the first display portion 10 can be folded or unfolded relative to the second display portion 30, and an orthographic projection of a folding axis on the touch panel is located in an area of the bending display portion 20, so that the first display portion 10 and the second display portion 30 can be folded with the folding axis as an axis. The folded display portion 20 is often held by the palm of the user as a folded portion that is generally customary for the user.
The touch panel of the embodiment of the utility model may be a mutual capacitance type touch panel or a self-capacitance type touch panel. The mutual capacitance type touch panel comprises a driving channel (TX channel), an induction channel (RX channel) crossed with the driving channel and a mutual capacitance induction node formed at the crossed point of the driving channel and the induction channel, wherein a driving pulse is input to a driving electrode of the driving channel to drive the mutual capacitance induction node to emit charges, the charges are collected through the induction electrode, the voltage of the mutual capacitance induction node is sensed, the variation of coupling capacitance is detected, and the position touched by a finger is determined. The horizontal channel may be a TX channel in a mutual capacitive touch panel, and the vertical channel may be an RX channel in the mutual capacitive touch panel; alternatively, as shown in fig. 2, in the present embodiment, the RX channel in the mutual capacitive touch panel is taken as the horizontal channel, and the TX channel in the mutual capacitive touch panel is taken as the vertical channel. A plurality of RX channels 100 and a plurality of TX channels 200 are disposed in the touch panel, specifically, the plurality of RX channels 100 includes an RX1 channel 101, an RX2 channel 102, an RX3 channel 103, an RX4 channel 104, an RX5 channel 105, an RX6 channel 106, an RX7 channel 107, an RX8 channel 108, and an RX9 channel 109, and the plurality of RX channels 100 respectively extend along a folding axis direction of the touch screen. The plurality of TX channels 200 include a TX1 channel, a TX2 channel, a TX3 channel, a TX4 channel, a TX5 channel, a TX6 channel, and a TX7 channel, and the plurality of TX channels 200 respectively extend in a direction perpendicular to a folding axis of the touch screen. The plurality of TX channels 200 are provided with a fracture 300 at a position opposite to the folding axis to form a first TX channel and a second TX channel, namely a first TX1 channel 2011 and a second TX1 channel 2012, a first TX2 channel 2021 and a second TX2 channel 2022, a first TX3 channel 2031 and a second TX3 channel 2032, a first TX4 channel 2041 and a second TX4 channel 2042, a first TX5 channel 2051 and a second TX5 channel 2052, a first TX6 channel 2061 and a second TX6 channel 2062, a first TX7 channel 2071 and a second TX7 channel 2072.
In a preferred embodiment of the present invention, the plurality of transverse channels are respectively laid on the first display portion, the bent display portion and the second display portion at the same intervals, and the plurality of longitudinal channels are respectively laid on the first display portion, the bent display portion and the second display portion at the same intervals. Specifically, in the present embodiment, the RX channels 100 are respectively disposed in parallel and at the same interval on the first display portion 10, the bent display portion 20, and the second display portion 30, and the TX channels 200 are respectively disposed in parallel and at the same interval on the first display portion 10, the bent display portion 20, and the second display portion 30.
It will be appreciated that the interruptions 300 of the longitudinal channels are located within the bend indicator 20. As shown in fig. 2, the fractures of the TX channels 200 are located in the bending display portion 20, so that the TX channels 200 are divided into two parts at the bending display portion 20, and thus the sub-longitudinal channels in the first display portion 10 and the second display portion 30 can be independently controlled and receive commands, respectively, so that the first display portion 10 and the second display portion 30 can be independently controlled areas, respectively, and respond differently to the touch actions of the user in different use states of the touch panel. When the touch panel is in the unfolded state, the two sub-vertical channels in the first display part 10 and the second display part 30 may be controlled to receive the same scanning signal or control command so that the two sub-vertical channels respond to the same touch operation, and when the touch panel is in the folded state, the sub-vertical channels in the first display part 10 or the second display part 30 on the back side are controlled to be disconnected and grounded so that the scanning of the channels on the back side is stopped.
At least one transverse channel is arranged in the bending display part 20, and a fracture of the longitudinal channel is positioned in the same transverse channel of the bending display part 20. As shown in fig. 2, only one RX channel-RX 5 channel 105 is disposed in the bending display part 20, and the breaks 300 of the plurality of TX channels 200 are disposed on the RX5 channel 105. The fracture 300 of the longitudinal channel is located in the same transverse channel of the bending display part 20, which conforms to the common folding use habit, facilitates the uniform control of the channel, and forms two complete independent control areas of the back touch panel and the front touch panel.
Preferably, a channel switch for controlling the disconnection or connection between the first sub-longitudinal channel and the second sub-longitudinal channel is arranged at the fracture of the first sub-longitudinal channel and the second sub-longitudinal channel. The channel switch can be used for flexibly controlling the combination and disconnection of the channels, when the touch panel is in an unfolded state, the channel switch controls the first sub-longitudinal channel and the second sub-longitudinal channel to be connected and combined into one longitudinal channel, so that the two sub-longitudinal channels make the same response to touch operation; when the touch panel is in a folded state, the channel switch controls the first sub-vertical channel and the second sub-vertical channel to be disconnected, so that the sub-vertical channels in the first display part 10 and the second display part 30 can independently receive the control instruction of the touch IC.
An embodiment of the present invention also provides a display device, including: as described above, the touch panel and the touch IC are configured to control the touch panel. The touch panel has a folding axis so that the touch panel can be bent along the folding axis, and the touch panel includes: the plurality of transverse channels are arranged at intervals, and each transverse channel extends along the folding axis direction; and the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed manner, and the longitudinal channels are provided with fractures at the positions opposite to the folding axis so as to form a first sub-longitudinal channel and a second sub-longitudinal channel. The longitudinal channel is divided into two parts by arranging the fracture to form two sub-longitudinal channels which can be independently controlled, and when the touch panel is in an unfolded state, the touch IC controls the two sub-longitudinal channels to receive the same scanning signal or control instruction so that the two sub-longitudinal channels make the same response to touch operation; when the touch panel is in a folded state, the touch IC controls the transverse channel and the sub-longitudinal channel on the back of the touch panel to be disconnected and grounded, so that the channel on the back of the touch panel stops scanning, and the problem that the channel on the back of the touch panel still induces the touch action of a user to generate interference on the touch response on the front of the touch panel when the touch panel is folded for work is solved.
In this embodiment, the touch IC has a plurality of touch detection channels, the plurality of touch detection channels receive touch sensing signals of the horizontal channel and the vertical channel, and two groups of touch detection channels configured differently by the touch IC are respectively connected to the first sub-vertical channel and the second sub-vertical channel. For example, the touch IC is configured such that the first TX1 touch detect channel is connected to the first TX1 channel 2011 and the second TX1 touch detect channel is connected to the second TX1 channel 2012. Different detection channels are configured to be connected with the two sub-longitudinal channels, so that the touch IC can send different response instructions according to different detection signals of the two sub-longitudinal channels, specifically, different responses and feedbacks are made according to a touch signal on the front side of the touch panel and a touch signal on the back side of the touch panel, and the induction influence of the channel on the back side of the touch panel on the touch signal or the interference of the channel on the front side of the touch panel on the judgment and response of the touch signal are avoided.
Preferably, the touch IC includes: the channel selection switch is arranged between the first sub-longitudinal channel or the second sub-longitudinal channel and two different groups of touch detection channels configured by the touch IC, and is configured to control the first sub-longitudinal channel and the second sub-longitudinal channel to be respectively connected with the two different groups of touch detection channels when the touch panel is in a folded state; when the touch panel is in an unfolded state, the first sub-longitudinal channel and the second sub-longitudinal channel are controlled to be connected with the same group of touch detection channels. Through the channel selection switch, the first sub-longitudinal channel or the second sub-longitudinal channel can be connected with different detection channels when being folded, receive different scanning instructions and output different detection channels, and can be connected with the same detection channel under an unfolded state, receive the same scanning instruction and output the same detection channel, so that the touch IC can be flexibly switched to different control modes according to different use states of the touch panel.
Preferably, the touch IC includes: the channel short circuit switch is connected to the two ends of the touch detection channel and configured to control the short circuit of the touch detection channel when the touch panel is in an unfolded state. By switching on the channel short-circuit switch, when the touch panel is in an unfolded state, the touch IC can enable one detection channel configured to the first sub-longitudinal channel and the second sub-longitudinal channel to be in short circuit, so that the first sub-longitudinal channel and the second sub-longitudinal channel can be connected to the same group of touch detection channels; when the touch panel is in a folded state, the channel short-circuit switch is switched off, so that the first sub-longitudinal channel and the second sub-longitudinal channel are respectively connected with the two different groups of touch detection channels.
Preferably, the touch IC includes: the channel short-circuit switch is connected to one or two groups of different touch detection channels configured in the touch IC, and the channel short-circuit switch is configured to control short-circuit of one group of touch detection channels when the touch panel is in an unfolded state. The number of the channel short-circuit switches can be flexibly configured according to actual needs, in one implementation mode, the two groups of different touch detection channels configured by the touch IC are respectively provided with the channel short-circuit switches, when the touch panel is in an unfolded state, the touch IC can enable one detection channel configured to the first sub-longitudinal channel and the second sub-longitudinal channel to be in short circuit by switching on one group of the channel short-circuit switches, and therefore the first sub-longitudinal channel and the second sub-longitudinal channel can be connected with the same group of touch detection channels; when the touch panel is in a folded state, the two groups of channel short-circuit switches are all disconnected, so that the first sub-longitudinal channel and the second sub-longitudinal channel are respectively connected with the two different groups of touch detection channels.
Preferably, the touch IC includes: the channel switch is connected with the transverse channel, the first sub-longitudinal channel and the second sub-longitudinal channel, and is configured to close the transverse channel and the longitudinal channel in the first display part or the second display part when the touch panel is in a folded state; when the touch panel is in an unfolded state, all the transverse channels and the longitudinal channels are opened. In this embodiment, independent channel switches are respectively configured for the transverse channel, the first sub-longitudinal channel, and the second sub-longitudinal channel, so that each channel can be flexibly controlled to be turned on or off in different use states of the touch panel without affecting the scanning of other channels. As shown in fig. 2, when the touch panel is folded for use and the first display portion 10 is in a touch operation state, the channel switch controls the RX1 channel 101 to RX5 channel 105 and the first TX1 channel 2011 to the first TX7 channel 2071 in the first display portion 10 to be opened, and controls the RX6 channel 106 to RX9 channel 109 and the second TX1 channel 2012 to the second TX7 channel 2072 to be closed; when the touch panel is folded for use and the second display part 10 is in a touch working state, the channel switch controls the RX1 channel 101 to RX4 channel 104 and the first TX1 channel 2011 to the first TX7 channel 2071 in the first display part 10 to be closed, and controls the RX5 channel 105 to RX9 channel 109 and the second TX1 channel 2012 to the second TX7 channel 2072 to be opened; when the touch panel is unfolded for use, the channel switch controls all the channels to be opened.
Preferably, the touch IC includes: a ground switch configured to control grounding of the cross-lane, the first sub-vertical lane, and the second sub-vertical lane. In the mutual capacitance type touch panel in the prior art, the TX channel and the RX channel are gap patterns, and thus the grounding effect is not good. In a preferred embodiment of the present invention, the ground switch is configured to control the TX channel 200 and the RX channel 100 in the first display part 10 or the second display part 30 at the back of the touch panel to be grounded when the flexible display panel is in a folded state. Specifically, when the touch panel is folded for use and the first display 10 is in a touch operation state, the channel switch and the ground switch cooperatively control the RX6 to RX9 channels 109 and the second TX1 to TX7 channels 2072 to be closed and grounded; when the touch panel is folded for use and the second display portion 10 is in a touch operation state, the channel switch and the ground switch cooperate to control the RX1 channel 101 to RX4 channel 104 and the first TX1 channel 2011 to the first TX7 channel 2071 in the first display portion 10 to be closed and grounded. The touch detection of a capacitive touch screen works on the principle that when a finger touches the touch screen, the capacitance of a touched point changes. The electronic device can detect capacitance changes of all points on the touch screen, and when the variation of the detected capacitance changes exceeds a preset threshold value, the points are considered to be touched, so that the position of the touched points can be detected. However, in different usage scenarios, the capacitance to ground of the electronic device is different, and the variation of the capacitance variation generated by the same touch is different. When the electronic equipment is in a floating scene, the capacitance of the electronic equipment to the ground is large, and the variation of capacitance change generated by touch is small. Therefore, the sensitivity of the touch is generally increased in the floating state, which further causes the interference of the back touch with the front touch in the folded state. Through setting up earthing switch, can the ground connection of each passageway of flexible control, especially under fold condition, guarantee that the back touch does not disturb the front touch-control, improve touch panel's floating ground performance.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.
Claims (15)
1. A touch panel having a folding axis such that the touch panel can be bent along the folding axis, the touch panel comprising:
a plurality of transverse channels, wherein the transverse channels are arranged at intervals, and each transverse channel extends along the direction of the folding axis; and
the folding device comprises a plurality of longitudinal channels, a plurality of transverse channels and a folding axis, wherein the longitudinal channels are arranged at intervals, the longitudinal channels and the transverse channels are arranged in a crossed mode, and fractures are arranged on the positions, right facing the folding axis, of the longitudinal channels to form a first sub-longitudinal channel and a second sub-longitudinal channel.
2. The touch panel of claim 1, wherein each of the longitudinal channels is aligned in a direction perpendicular to the folding axis.
3. The touch panel according to claim 1 or 2, wherein the touch panel includes a first display portion, a bent display portion, and a second display portion, which are sequentially distributed, the first display portion is flexibly connected to the second display portion through the bent display portion, the first display portion can be folded or unfolded with respect to the second display portion, and an orthogonal projection of the folding axis on the touch panel is located in an area of the bent display portion.
4. The touch panel of claim 3, wherein the plurality of transverse channels are respectively disposed at the first display portion, the bent display portion, and the second display portion at the same intervals, and the plurality of longitudinal channels are respectively disposed at the first display portion, the bent display portion, and the second display portion at the same intervals.
5. The touch panel of claim 3, wherein the break of the longitudinal channel is located in the bent display portion.
6. The touch panel of claim 5, wherein at least one transverse channel is disposed in the bending display portion, and the break of the longitudinal channel is located in the same transverse channel of the bending display portion.
7. The touch panel according to claim 1 or 2, wherein a channel switch for controlling disconnection or connection between the first sub-longitudinal channel and the second sub-longitudinal channel is disposed at a break of the first sub-longitudinal channel and the second sub-longitudinal channel.
8. The touch panel according to claim 1 or 2, wherein the touch panel is a mutual capacitance type touch panel or a self-generated capacitance type touch panel.
9. A display device, comprising:
the touch panel of any one of claims 3-8; and
a touch IC configured to control the touch panel.
10. The display device according to claim 9, wherein the touch IC has a plurality of touch detection channels, the plurality of touch detection channels receive the touch sensing signals of the horizontal channel and the vertical channel, and two groups of touch detection channels with different configurations of the touch IC are respectively connected to the first sub-vertical channel and the second sub-vertical channel.
11. The display device according to claim 10, wherein the touch IC comprises:
the channel selection switch is arranged between the first sub-longitudinal channel or the second sub-longitudinal channel and two different groups of touch detection channels configured by the touch IC, and is configured to control the first sub-longitudinal channel and the second sub-longitudinal channel to be respectively connected with the two different groups of touch detection channels when the touch panel is in a folded state; when the touch panel is in an unfolded state, the first sub-longitudinal channel and the second sub-longitudinal channel are controlled to be connected with the same group of touch detection channels.
12. The display device according to claim 10, wherein the touch IC comprises:
the touch panel is in unfolded state, controls touch detection passageway's short circuit.
13. The display device according to claim 12, wherein the touch IC comprises: the channel short circuit switch is connected to one or two groups of two different groups of touch detection channels configured by the touch IC, and the channel short circuit switch is configured to control short circuit of one group of touch detection channels when the touch panel is in an unfolded state.
14. The display device according to any one of claims 9 to 13, wherein the touch IC includes:
a channel switch connected to the transverse channel, the first sub-longitudinal channel, and the second sub-longitudinal channel, the channel switch configured to close the transverse channel and the longitudinal channel in the first display or the second display when the touch panel is in a folded state; when the touch panel is in an unfolded state, all the transverse channels and the longitudinal channels are opened.
15. The display device according to any one of claims 9 to 13, wherein the touch IC includes:
a ground switch configured to control grounding of the transverse channel, the first sub-longitudinal channel, and the second sub-longitudinal channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473642.9U CN215341025U (en) | 2021-03-04 | 2021-03-04 | Touch panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473642.9U CN215341025U (en) | 2021-03-04 | 2021-03-04 | Touch panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215341025U true CN215341025U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120473642.9U Expired - Fee Related CN215341025U (en) | 2021-03-04 | 2021-03-04 | Touch panel and display device |
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| Country | Link |
|---|---|
| CN (1) | CN215341025U (en) |
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2021
- 2021-03-04 CN CN202120473642.9U patent/CN215341025U/en not_active Expired - Fee Related
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