CN113589968A - Display panel, display panel driving method and display device - Google Patents
Display panel, display panel driving method and display device Download PDFInfo
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- CN113589968A CN113589968A CN202110846504.5A CN202110846504A CN113589968A CN 113589968 A CN113589968 A CN 113589968A CN 202110846504 A CN202110846504 A CN 202110846504A CN 113589968 A CN113589968 A CN 113589968A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136254—Checking; Testing
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
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- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel, a display panel driving method and a display device, wherein the display panel is provided with a light-transmitting area and a display area which is at least partially arranged around the light-transmitting area, and the display panel comprises: a substrate; the touch electrode layer is arranged on one side of the substrate and comprises a plurality of touch electrode blocks; the touch control signal lines are electrically connected with the touch control electrode blocks in a one-to-one mode, at least one touch control signal line in the touch control signal lines is reused as a first crack detection line, and the first crack detection line is at least partially arranged around the light transmission area. According to the display panel provided by the embodiment of the invention, at least one touch signal line is reused as the first crack detection line, and a passing area of the first crack detection line does not need to be reserved between adjacent touch electrode blocks, so that the coverage area of the touch electrode blocks is increased, a touch blind area is avoided, and the touch performance of the display panel is improved.
Description
Technical Field
The invention belongs to the technical field of electronic products, and particularly relates to a display panel, a display panel driving method and a display device.
Background
In order to achieve a larger screen ratio, some display panels use an in-screen hole digging technology, that is, a hole digging area for placing hardware such as a front camera is arranged in an effective display area. For the display panel with the integrated touch function, the hole position is designed with a crack detection line for detecting whether the hole edge is broken or not caused by hole cutting, but the existing crack detection line can cause adverse effects on touch performance due to the limitation of wiring.
Therefore, a new display panel, a display panel driving method and a display device are needed.
Disclosure of Invention
The embodiment of the invention provides a display panel, a display panel driving method and a display device.
An embodiment of the present invention provides a display panel having a light-transmitting region and a display region at least partially surrounding the light-transmitting region, the display panel including: a substrate; the touch electrode layer is arranged on one side of the substrate and comprises a plurality of touch electrode blocks; the touch control signal lines are electrically connected with the touch control electrode blocks in a one-to-one mode, at least one touch control signal line in the touch control signal lines is multiplexed into a first crack detection line, and the first crack detection line is at least partially arranged around the light transmitting area.
According to an aspect of the invention, the display device further includes a transition region disposed between the transparent region and the display region, and at least one of the touch signal lines extends to the transition region and is disposed around the transparent region to be reused as the first crack detection line.
According to one aspect of the invention, the touch electrode block comprises a plurality of special-shaped electrode blocks arranged around the light-transmitting area, each special-shaped electrode block has a special-shaped edge matched with the edge shape of the light-transmitting area, at least one touch signal line in the touch signal lines electrically connected with each special-shaped electrode block is multiplexed into a first crack detection line, and the extending track of the first crack detection line is matched with the edge shape of the light-transmitting area.
According to an aspect of the invention, one of the first crack detecting lines is provided, and one of the first crack detecting lines is at least partially provided in two layers in a direction pointing to the display area along a center of the light-transmitting area.
According to an aspect of the invention, two first crack detection lines are provided, and two first crack detection lines are provided around the entire light-transmitting area.
According to one aspect of the invention, the method further comprises the step of providing a non-display area at least partially surrounding the display area, providing a second crack detection line at least partially surrounding the display area in the non-display area, and insulating the first crack detection line and the second crack detection line from each other.
According to one aspect of the invention, the display device further comprises a control chip arranged in the non-display area, each touch signal line is electrically connected with the control chip, and the touch signal lines connected with one or more of the special-shaped electrode blocks with the largest distance from the control chip in each special-shaped electrode block are multiplexed as crack detection lines.
Another aspect of an embodiment of the present invention provides a display panel driving method, including: sending a touch signal to each touch electrode block through a touch signal line in a touch stage; sending crack detection signals to the touch electrode block through the crack detection lines multiplexed in the touch signal lines and receiving feedback signals in a crack detection stage; and when the difference value between the feedback signal and the reference signal value exceeds the error range, outputting a warning signal.
According to another aspect of the invention, the feedback signal comprises a voltage value of the touch electrode block after receiving the crack detection signal.
Another aspect of an embodiment of the present invention provides a display device, including: a display panel as described in any of the above embodiments.
Compared with the prior art, the display panel provided by the embodiment of the invention comprises the substrate, the touch electrode layer and the touch signal line, and the touch signal line can provide a touch signal for each touch electrode block so as to realize the touch function of the display panel. Meanwhile, at least one touch signal line in the multiple touch signal lines is multiplexed as a first crack detection line, the first crack detection line is at least partially arranged around the light transmission area, when cracks are generated in the light transmission area, the first crack detection line is cracked together by the cracks, so that the first crack detection line is opened, and when touch detection is performed, an open circuit of a touch electrode block electrically connected with the first crack detection line can be detected, so that defective cracks can be effectively screened out. According to the display panel provided by the embodiment of the invention, at least one touch signal line is reused as the first crack detection line, and a passing area of the first crack detection line does not need to be reserved between adjacent touch electrode blocks, so that the coverage area of the touch electrode blocks is increased, a touch blind area is avoided, and the touch performance of the display panel is improved.
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 of the present invention will be briefly described below, and it is obvious that the drawings described below are only 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 display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a flowchart of a display panel driving method according to an embodiment of the invention.
In the drawings:
1-a substrate; 2-touch electrode block; 21-a special-shaped electrode block; 3-touch signal lines; 4-a first crack detection line; 5-a second crack detection line; an IC-control chip; TA-light transmitting area; a PA-transition region; AA-display area; NA-non-display area.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The display panel provided by the embodiment of the invention can be an Organic Light-Emitting Diode (OLED) display panel, a liquid crystal panel or a Micro flat display panel (Micro-OLED or Micro-LED), and the like. The description will be given taking the display panel as an OLED display panel as an example.
For better understanding of the present invention, the display panel driving method and the display device according to the embodiments of the present invention will be described in detail below with reference to fig. 1 to 4.
Referring to fig. 1 to fig. 3, an embodiment of the invention provides a display panel having a light transmissive area TA and a display area AA at least partially surrounding the light transmissive area TA, the display panel including: a substrate 1; the touch electrode layer is arranged on one side of the substrate 1 and comprises a plurality of touch electrode blocks 2; the touch signal lines 3, the touch signal lines 3 and the touch electrode blocks 2 are electrically connected in a one-to-one manner, at least one touch signal line 3 of the touch signal lines 3 is reused as a first crack detection line 4, and the first crack detection line 4 is at least partially arranged around the light transmission area TA.
The display panel provided by the embodiment of the invention comprises a substrate 1, a touch electrode layer and touch signal lines 3, and touch signals can be provided for each touch electrode block 2 through the touch signal lines 3 so as to realize the touch function of the display panel. Meanwhile, at least one touch signal line 3 of the touch signal lines 3 is reused as a first crack detection line 4, the first crack detection line 4 is at least partially arranged around the light transmission area TA, when cracks occur in the light transmission area TA, the cracks can crack the first crack detection line 4 together to cause the first crack detection line 4 to be opened, and when touch detection is performed, the touch electrode block 2 electrically connected with the first crack detection line 4 can be detected to be opened, so that defective cracks can be effectively screened out. According to the display panel provided by the embodiment of the invention, at least one touch signal line 3 is multiplexed into the first crack detection line 4, and a passing area of the first crack detection line 4 does not need to be reserved between adjacent touch electrode blocks 2, so that the coverage area of the touch electrode blocks 2 is increased, a touch blind area is avoided, and the touch performance of the display panel is improved.
It should be noted that the display area AA is at least partially disposed around the transparent area TA, the transparent area TA may be used to set an area of an optical element such as a camera, and the display area AA may be disposed around the entire transparent area TA, or may be partially disposed around the transparent area TA, so as to form a Notch display screen, i.e., a bang screen or a water drop screen. Optionally, the light transmissive area TA includes a via hole penetrating through the substrate base plate 1. It should be noted that, in some alternative embodiments, the light-transmitting area TA may also be a high light-transmitting display area AA including a display element.
It can be understood that, since the optical element is required to be disposed in the transparent area TA and the opening may be disposed, cracks are more likely to be generated in the transparent area TA, in the embodiment of the invention, the touch signal line 3 is multiplexed into the first crack detection line 4, when the crack generated in the transparent area TA affects the first crack detection line 4, the first crack detection line 4 may have a problem such as fracture, which causes an abnormality in the touch signal transmitted through the first crack detection line 4, specifically, whether the voltage or the current of the touch electrode block 2 connected to the first crack detection line 4 has an abnormality or not may be detected.
In some optional embodiments, the display panel further includes a transition area PA disposed between the transmissive area TA and the display area AA, and at least one touch signal line 3 of the plurality of touch signal lines 3 extends to the transition area PA and is disposed around the transmissive area TA to be reused as the first crack detection line 4.
It should be noted that the transition area PA is used for setting films such as a retaining wall structure to prevent external water and oxygen from entering the display area AA through the transparent area TA to corrode the device, in order to avoid affecting the display effect, at least one touch signal line 3 of the plurality of touch signal lines 3 extends to the transition area PA and is arranged around the transparent area TA, and specifically, one touch signal line 3 can be arranged around the transparent area TA in the transition area PA to realize crack detection and reduce the wiring difficulty. Also, a plurality of touch signal lines 3 can be multiplexed as the first crack detection line 4, so that the entire light-transmitting area TA can be conveniently surrounded, and crack detection of the entire light-transmitting area TA can be realized.
In order to avoid interference between the first crack detection line 4 and other touch signal lines 3 not multiplexed with the first crack detection line 4, in some alternative embodiments, the touch electrode block 2 includes a plurality of shaped electrode blocks 21 disposed around the light transmission area TA, each shaped electrode block 21 has a shaped edge matching the shape of the edge of the light transmission area TA, at least one touch signal line 3 of the touch signal lines 3 electrically connected to each shaped electrode block 21 is multiplexed as the first crack detection line 4, and the extending track of the first crack detection line 4 matches the shape of the edge of the light transmission area TA.
It should be noted that the light-transmitting area TA usually adopts a curved edge shape such as a circle or an ellipse, the special-shaped electrode block 21 is the touch electrode block 2 having a special-shaped edge matching with the edge shape of the light-transmitting area TA, namely, the radian of the special-shaped edge of the special-shaped electrode block 21 is equal to the radian of the edge of the opposite light transmission area TA, the special-shaped electrode block 21 is also the touch electrode block 2 which is adjacent to and closest to the light transmission area TA in each touch electrode block 2, by multiplexing at least one touch signal line 3 of the touch signal lines 3 electrically connected with the different electrode blocks 21 as the first crack detection line 4, the routing distance of the touch signal line 3 extending to the transition area PA can be effectively reduced, meanwhile, the extending track of the first crack detection line 4 is matched with the edge shape of the light-transmitting area TA, so that interference with other touch signal lines 3 is avoided, and the stability of signal transmission is improved.
Referring to fig. 1, in order to arrange the first crack detection lines 4 around the entire transmissive area TA to monitor the crack condition on the outer circumferential side of the entire transmissive area TA, in some alternative embodiments, one first crack detection line 4 is arranged, and one first crack detection line 4 is at least partially arranged in two layers in a direction pointing to the display area AA along the center of the transmissive area TA.
It should be noted that, when the light-transmitting area TA is located between the touch electrode block 2 and the control chip IC connected to the first crack detection line 4, the first crack detection line 4 needs to enter the transition area PA from one side of the light-transmitting area TA, and exit from the transition area PA from the other side of one side of the light-transmitting area TA to be connected to the control chip IC, so that two layers need to be disposed around the part of the light-transmitting area TA to go out from the transition area PA by using one first crack detection line 4, so that one first crack detection line 4 can be disposed around the whole light-transmitting area TA, and the detection range for cracks is improved.
Referring to fig. 2, in order to avoid the display effect being affected by the too large width of the transition area PA caused by the plurality of first crack detection lines 4 disposed in the transition area PA, in some other embodiments, two first crack detection lines 4 are disposed, and the two first crack detection lines 4 are disposed around the entire transparent area TA.
Through setting up two first crack detection lines 4, and two first crack detection lines 4 set up around whole printing opacity district TA to improve the detection range to the crackle, avoid setting up the multilayer with same first crack detection line 4 in order to realize setting up around whole printing opacity district TA. Optionally, a larger number of first crack detection lines 4 may be used to realize crack detection, which may be specifically determined according to the number and size of the special-shaped electrode blocks 21.
Referring to fig. 3, in some alternative embodiments, the display panel further includes a non-display area NA at least partially surrounding the display area AA, a second crack detection line 5 at least partially surrounding the display area AA is disposed in the non-display area NA, and the first crack detection line 4 and the second crack detection line 5 are insulated from each other.
It can be understood that the non-display area NA is a frame portion located at the outermost side of the display panel, the film structure of the non-display area NA is also easily subjected to external impact to generate cracks, and therefore the second crack detection line 5 at least partially surrounding the display area AA is arranged in the non-display area NA, and in order to avoid the mutual influence of the first crack detection line 4 and the second crack detection line 5 on the crack detection result, the first crack detection line 4 and the second crack detection line 5 are arranged in an insulated manner, and meanwhile, the crack detection line is also prevented from being arranged between the touch electrode blocks 2 to connect the first crack detection line 4 and the second crack detection line 5, that is, a passing area of the crack detection line does not need to be reserved between the adjacent touch electrode blocks 2, so that the coverage area of the touch electrode blocks 2 is increased, a touch blind area is avoided, and the touch performance of the display panel is improved.
In order to realize the touch function of the display panel, in some optional embodiments, the display panel further includes a control chip IC disposed in the non-display area NA, each touch signal line 3 is electrically connected to the control chip IC, and the touch signal lines 3 connected to one or more of the special-shaped electrode blocks 21 having the largest distance from the control chip IC in each of the special-shaped electrode blocks 21 are multiplexed as crack detection lines.
Because the different electrode blocks 21 are arranged around the light transmission area TA, in order to facilitate wiring, the wiring length of the crack detection line is reduced, the stability of signal transmission is improved, and the touch signal lines 3 connected with one or more different electrode blocks 21 with the largest distance between the different electrode blocks 21 and the control chip IC can be reused as the crack detection line. Specifically, one or more touch signal lines 3 connected to the special-shaped electrode blocks 21 located on the side of the light-transmitting area TA away from the control chip IC may be multiplexed as crack detection lines.
Referring to fig. 4, an embodiment of the present invention further provides a display panel driving method, including:
s110: sending a touch signal to each touch electrode block 2 through a touch signal line 3 in a touch stage;
s120: sending crack detection signals to the touch electrode block 2 through the crack detection lines multiplexed in the touch signal lines 3 and receiving feedback signals in the crack detection stage;
s130: when the difference between the feedback signal and the reference signal value exceeds the error range, a warning signal is output.
In step S110, a touch signal may be sent to each touch electrode block 2 through the control chip IC, so as to implement the touch function of the display panel.
In step S120, the crack detection signal is sent to the touch electrode block 2 through the crack detection line and the feedback signal is received, and in order to simplify the signal sending step, the touch signal may be multiplexed into the crack detection signal, that is, the crack detection signal is determined whether a crack is generated by using the touch signal of the touch electrode block 2 and the sensing signal fed back by the touch electrode block 2, and no additional crack detection signal is sent.
In step S130, when the difference between the feedback signal and the reference signal exceeds an error range, a warning signal is output, and the error range may be selected according to actual conditions, and may specifically be a certain voltage value range or a certain capacitance value range, etc.
According to the display panel driving method provided by the embodiment of the invention, part of the touch signal lines 3 are reused as the crack detection lines, no crack detection lines are additionally arranged, the integration level of the display panel is effectively improved, the passing area of the crack detection lines is not required to be reserved between the adjacent touch electrode blocks 2, the coverage area of the touch electrode blocks 2 is increased, the formation of touch blind areas is avoided, and the touch performance of the display panel is improved.
In some optional embodiments, the feedback signal includes a voltage value of the touch electrode block 2 after receiving the crack detection signal. When the crack detection line has cracks, the resistance of the crack detection line changes, and the voltage value of the touch electrode block 2 connected with the crack detection line is affected. For example, when the crack detection line is completely broken, that is, the crack detection line and the touch electrode block 2 connected to the crack detection line are in an open circuit state, and there is no feedback signal, it can also be understood that the feedback signal is zero, and a warning signal is output to remind a worker that a crack occurs on the display panel.
The present invention also provides a display device, including: the display panel is the display panel in any one of the embodiments. The display device provided by the embodiment of the invention has the technical effects of the technical solutions of the display panel in any of the embodiments, and the explanations of the structures and terms identical to or corresponding to those in the embodiments are not repeated herein. The display device provided by the embodiment of the invention can be a mobile phone and can also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, medical equipment, industrial control equipment, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
As will be apparent to those skilled in the art, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Claims (10)
1. A display panel having a light-transmissive region and a display region disposed at least partially around the light-transmissive region, the display panel comprising:
a substrate;
the touch electrode layer is arranged on one side of the substrate and comprises a plurality of touch electrode blocks;
the touch control signal lines are electrically connected with the touch control electrode blocks in a one-to-one mode, at least one touch control signal line in the touch control signal lines is multiplexed into a first crack detection line, and the first crack detection line is at least partially arranged around the light transmitting area.
2. The display panel of claim 1, further comprising a transition region disposed between the transmissive region and the display region, wherein at least one of the touch signal lines extends to the transition region and is disposed around the transmissive region to be multiplexed as the first crack detection line.
3. The display panel according to claim 2, wherein the touch electrode block includes a plurality of shaped electrode blocks disposed around the light transmission region, each of the shaped electrode blocks has a shaped edge matching the edge shape of the light transmission region, at least one of the touch signal lines electrically connected to each of the shaped electrode blocks is multiplexed as a first crack detection line, and an extended locus of the first crack detection line matches the edge shape of the light transmission region.
4. The display panel according to claim 3, wherein one of the first crack detection lines is provided, and one of the first crack detection lines is at least partially provided in two layers in a direction pointing to the display area along a center of the light-transmitting area.
5. The display panel according to claim 3, wherein the first crack detection lines are provided in two, and the two first crack detection lines are provided around the entire light-transmissive region.
6. The display panel of claim 3, further comprising a non-display area disposed at least partially around the display area, wherein a second crack detection line is disposed at least partially around the display area, and wherein the first crack detection line and the second crack detection line are insulated from each other.
7. The display panel according to claim 6, further comprising a control chip disposed in the non-display area, wherein each of the touch signal lines is electrically connected to the control chip, and the touch signal lines connected to one or more of the irregular electrode blocks having the largest distance from the control chip are multiplexed as crack detection lines.
8. A display panel driving method, comprising:
sending a touch signal to each touch electrode block through a touch signal line in a touch stage;
sending crack detection signals to the touch electrode block through the crack detection lines multiplexed in the touch signal lines and receiving feedback signals in a crack detection stage;
and when the difference value between the feedback signal and the reference signal value exceeds the error range, outputting a warning signal.
9. The method according to claim 8, wherein the feedback signal comprises a voltage value of the touch electrode block after receiving the crack detection signal.
10. A display device, comprising: a display panel according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110846504.5A CN113589968B (en) | 2021-07-26 | 2021-07-26 | Display panel, display panel driving method and display device |
Applications Claiming Priority (1)
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