CN107092118B - Array substrate, display panel and display device - Google Patents
Array substrate, display panel and display device Download PDFInfo
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- CN107092118B CN107092118B CN201710522484.XA CN201710522484A CN107092118B CN 107092118 B CN107092118 B CN 107092118B CN 201710522484 A CN201710522484 A CN 201710522484A CN 107092118 B CN107092118 B CN 107092118B
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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
- 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
Abstract
The embodiment of the invention discloses an array substrate, a display panel and a display device. Wherein, the array substrate includes: a substrate including a display region and a non-display region surrounding the display region; the driving circuit area is positioned in the non-display area on the substrate base plate and is provided with a driving circuit, and the driving circuit is electrically connected into the display area through a plurality of driving signal wires; at least one pressure sensor located on the substrate between the driving circuit region and the display region; and a plurality of pressure-sensitive signal lines electrically connected to the pressure sensor, for inputting a pressure-sensitive reference signal to the pressure sensor and outputting a pressure-sensitive signal from the pressure sensor, respectively. The embodiment of the invention improves the problem of complex wiring of the driving signal wire caused by arranging the pressure sensor in the driving circuit area.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to an array substrate, a display panel and a display device.
Background
With the development of display technology, the application of the pressure sensing function in the display device is more and more extensive. At present, pressure sensors for realizing pressure sensing functions mainly have two types: resistive pressure sensors and capacitive pressure sensors. Among them, the resistive pressure sensor is regarded by the industry because of its high sensitivity and low cost.
Generally, the pressure sensors are disposed at a peripheral frame of the display panel, and in order not to increase the width of the frame, the pressure sensors are disposed at a driving circuit region of the frame, for example, the pressure sensors are located between adjacent two shift registers. However, in order to avoid additional manufacturing processes, the pressure sensor and a certain film layer of the shift register are disposed on the same layer, and therefore, the shift registers on both sides of the pressure sensor need to be shifted in a direction away from the pressure sensor, thereby destroying the arrangement period of the shift registers, and further causing that the driving signal lines electrically connected to the shift registers need to be electrically connected to the signal lines corresponding to the display area through the winding. Moreover, when the driving signal is increased or the process size of the display panel is reduced, the complicated routing of the driving signal lines may not allow the signal to smoothly enter the display area, which may affect the display.
Disclosure of Invention
The invention provides an array substrate, a display panel and a display device, which aim to solve the problem of complicated wiring of a driving signal wire caused by the fact that a pressure sensor is arranged in a driving circuit area.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
a substrate including a display region and a non-display region surrounding the display region;
the driving circuit area is positioned in the non-display area on the substrate base plate and is provided with a driving circuit, and the driving circuit is electrically connected into the display area through a plurality of driving signal wires;
at least one pressure sensor located on the substrate between the driving circuit region and the display region;
and a plurality of pressure-sensitive signal lines electrically connected to the pressure sensor, for inputting a pressure-sensitive reference signal to the pressure sensor and outputting a pressure-sensitive signal from the pressure sensor, respectively.
In a second aspect, an embodiment of the present invention provides a display panel, including the array substrate according to the first aspect.
In a third aspect, an embodiment of the present invention further provides a display device, including the display panel according to the second aspect.
According to the embodiment of the invention, the pressure sensor is arranged between the driving circuit area and the display area, so that the arrangement period of the driving circuit arranged in the driving circuit area is not influenced, and further the driving circuit and the pixels of the display area form corresponding periodic arrangement, so that the driving signal wires electrically connected with the output ends of the driving circuits can be linearly led into the display area, the problem of complex wiring of the driving signal wires is solved, the driving signals can be efficiently transmitted, and the display quality is improved.
Drawings
Fig. 1 is a schematic plan view of a conventional array substrate;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is a schematic plan view of an area a in fig. 1 on an array substrate according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A1-A2 in FIG. 3;
fig. 5 is a schematic cross-sectional view of the array substrate after bending according to the embodiment of the invention;
FIG. 6 is a schematic view of a further cross-sectional configuration taken along line A1-A2 of FIG. 3;
FIG. 7 is a schematic view of another plan structure of the area A in FIG. 1 according to an embodiment of the present invention;
fig. 8 is a schematic plan view of an array substrate according to an embodiment of the present invention;
fig. 9 is an enlarged schematic view of the thin film transistor 51 in fig. 8;
FIG. 10 is a schematic sectional view taken along line B1-B2 in FIG. 8;
FIG. 11 is a schematic view of a further cross-sectional configuration taken along line B1-B2 of FIG. 8;
FIG. 12 is a schematic view of a further cross-sectional configuration taken along line B1-B2 of FIG. 8;
FIG. 13 is a schematic view of a further cross-sectional configuration taken along line B1-B2 of FIG. 8;
FIG. 14 is a schematic view of a further cross-sectional configuration taken along line B1-B2 of FIG. 8;
FIG. 15 is a schematic structural diagram of a pressure sensor provided in an embodiment of the present invention;
FIG. 16 is a schematic structural diagram of another pressure sensor provided in accordance with an embodiment of the present invention;
FIG. 17 is a schematic structural diagram of another pressure sensor provided in accordance with an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic plan view of a conventional array substrate; fig. 2 is an enlarged schematic view of region a in fig. 1. As shown in fig. 1 and 2, the array substrate includes a display area 100 and a non-display area 200 surrounding the display area 100; at least one side frame of the non-display area 200 includes a driving circuit area 201, the driving circuit area 201 may be configured with a gate driving circuit and a pressure sensor 10, the gate driving circuit includes a plurality of stages of shift registers 20, and the pressure sensor 10 is disposed between two adjacent shift registers 20. In this structure, due to the arrangement of the pressure sensor 10, the shift registers 20 on both sides of the pressure sensor 10 need to be shifted in a direction away from the pressure sensor 10, so that the arrangement period of the shift registers 20 is destroyed, and then the driving signal line 30 electrically connected to the shift registers needs to be electrically connected to the scanning line M1 corresponding to the display area 100 through a winding (bending), which causes the wiring of the driving signal line 30 to be complicated, and affects the transmission of the display signal.
In view of the foregoing problems, embodiments of the present invention provide an array substrate, a display panel and a display device. Fig. 3 is a schematic plan view of an area a in fig. 1 on an array substrate according to an embodiment of the present invention; FIG. 4 is a schematic sectional view taken along line A1-A2 in FIG. 3. As shown in fig. 3 and 4, an array substrate according to an embodiment of the present invention includes:
a substrate base plate 40 including a display area 100 and a non-display area 200 surrounding the display area 100;
a driving circuit region (not shown, refer to the corresponding region 201 in fig. 1), located in the non-display region 200 on the substrate 40, and having a driving circuit 21, wherein the driving circuit 21 is electrically connected to the display region 100 through a plurality of driving signal lines 31, for example, the driving circuit 21 can be electrically connected to the scanning lines or data lines of the display region 100;
at least one pressure sensor 10 on the substrate base plate 40 between the driving circuit region and the display region 100;
the pressure-sensitive signal lines 34 are electrically connected to the pressure sensor 10, and are used for inputting a pressure-sensitive reference signal to the pressure sensor 10 and outputting a pressure-sensitive signal from the pressure sensor 10, respectively.
According to the embodiment of the invention, the pressure sensor is arranged between the driving circuit area and the display area, so that the arrangement period of the driving circuit arranged in the driving circuit area is not influenced, and further the driving circuit and the pixels of the display area form corresponding periodic arrangement, so that the driving signal wires electrically connected with the output ends of the driving circuits can be linearly led into the display area, the problem of complex wiring of the driving signal wires is solved, the driving signals can be efficiently transmitted, and the display quality is improved.
Optionally, the driving circuit may be a gate driving circuit or a source driving circuit. In consideration of the complicated wiring on the source driving circuit side, the pressure sensor may be disposed between the gate driving circuit region and the display region. Correspondingly, when the driving circuit is a gate driving circuit, the driving circuit may include a plurality of stages of shift registers, each stage of shift register being electrically connected to at least one driving signal line; the driving signal lines are parallel to each other and are arranged periodically, namely, the pressure sensors positioned in the non-display area at the side of the grid driving circuit are all arranged between the grid driving circuit area and the display area, and each driving signal line can be directly led to the display area by the grid driving circuit without winding. Therefore, the problem of complex wiring of the driving signal lines is solved, and the display quality is further improved.
In the embodiment of the invention, when the driving signal is less or one pressure sensor can be arranged between two adjacent driving signal lines, the pressure sensor can be arranged between the two adjacent driving signal lines and on the same layer as the driving signal lines, at the moment, the pressure sensing signal line and the pressure sensor are arranged on different layers, and the pressure sensing signal line is electrically connected with the pressure sensor through the through hole so as to avoid short circuit between the pressure sensing signal line and the driving signal lines.
For example, when the driving signal is increased or the process size of the display panel is reduced, the pressure sensor and the pressure sensing signal line are located at different layers from the driving signal line. Optionally, the pressure sensor and the pressure sensing signal line are located on the same layer or different layers. Wherein, the pressure sensor and the pressure sensing signal wire can be respectively and independently prepared; optionally, the pressure sensor and the pressure-sensitive signal line are prepared in the same process as the film layer on the array substrate, that is, the pressure sensor and the pressure-sensitive signal line are located in the same layer as part of the film layer on the array substrate. For example, referring to fig. 4, the pressure sensor 10 and the pressure-sensitive signal line 34 are located in different layers from the driving signal line 31, and the pressure sensor 10 and the pressure-sensitive signal line 34 are located in different layers; referring to fig. 6, the pressure sensor 10 and the pressure-sensitive signal line 34 are located at different layers from the driving signal line 31, and the pressure sensor 10 and the pressure-sensitive signal line 34 are located at the same layer. The specific film layers of the pressure sensor 10, the pressure-sensitive signal line 34 and the driving signal line 31 are not limited in the embodiments of the present invention, and as long as the pressure sensor 10, the pressure-sensitive signal line 34 and the driving signal line 31 are located in different layers, the pressure sensor 10 can realize pressure sensing.
Optionally, with continued reference to fig. 3 and 4, the substrate 40 is a flexible substrate, the non-display area 200 includes a first area X and a second area Y sequentially distributed from the display area 100 to the non-display area 200, the driving circuit area is located in the second area Y, the second area Y is used for folding the driving circuit area to a side of the substrate 40 away from the pressure sensor 10, that is, the driving circuit area is folded to the back of the array substrate to realize a narrow frame, a dotted line between the first area X and the second area Y in fig. 3 is a folding axis 32, and the array substrate can be bent at the folding axis 32; in addition, if the pressure sensor 10 is disposed in the second area Y, the pressure sensor 10 cannot be deformed by the touch pressure applied to the display area 100 after the array substrate is folded, and at this time, the pressure sensor 10 cannot sense the touch pressure, so that at least a portion of the pressure sensor 10 is located in the first area X. Illustratively, referring to fig. 7, half of the pressure sensor 10 is located in the first region X, and half is located in the second region Y, and optionally, the portion of the pressure sensor 10 located in the first region X has two different main strain sensing directions to generate a deformation difference, so as to realize the sensing of the pressure. Alternatively, referring to fig. 3, in order to prevent the pressure sensors 10 from being broken when the array substrate is folded, the pressure sensors 10 are all disposed in the first region X, and at this time, as shown in fig. 5, after the array substrate is folded along the folding axis 32, the driving circuit 21 is folded to a side of the substrate away from the pressure sensors 10. Optionally, the pressure sensor 10 is as close to the display area as possible, which can improve the pressure sensing accuracy on one hand, and can compress the frame to be narrower on the other hand.
Optionally, the array substrate further includes a plurality of scan lines located in the display area, the driving signal lines and the scan lines are located in the same layer or different layers, the non-display area is further provided with scan signal output lines electrically connected with the driving circuit, first ends of the driving signal lines are electrically connected with the scan signal output lines, and second ends of the driving signal lines are electrically connected with the scan lines. For example, referring to fig. 4, the driving signal line 31 and the scan line M1 at the corresponding position of the pressure sensor 10 are located at different layers, the first end of the driving signal line 31 is electrically connected to the scan signal output line 33, the second end of the driving signal line 31 is electrically connected to the scan line M1, and at this time, the driving signal line 31 is electrically connected to the scan signal output line 33 and the scan line M1 through vias, respectively. It should be noted that, in the embodiment shown in fig. 3 and fig. 4, the position of the pressure sensor 10 is not set, and the driving signal line 31 and the scanning line M1 are located on the same layer, that is, the driving signal line 31 and the scanning line M1 can be prepared by the same process. In another embodiment, referring to fig. 6, the driving signal line 31 and the scan line M1 are located on the same layer, that is, the driving signal line 31 and the scan line M1 can be prepared by the same process, which saves the process flow.
Optionally, the array substrate in the embodiment of the present invention may be disposed in a liquid crystal display panel or an organic light emitting display panel, wherein the array substrate may be an a-Si array substrate or an LTPS array substrate, and a thin film transistor on the array substrate may be a bottom gate structure or a top gate structure; the pressure sensor in embodiments of the present invention may comprise a metallic material or a semiconductor material.
For example, fig. 8 is a schematic plan structure diagram of an array substrate according to an embodiment of the present invention; fig. 9 is an enlarged schematic view of the thin film transistor 51 in fig. 8. As shown in fig. 8 and 9, the array substrate further includes a plurality of data lines M2 located in the display area 100, the scan lines M1 and the data lines M2 cross each other to define a plurality of pixel units 50, and each pixel unit 50 includes a thin film transistor 51.
Referring to fig. 10, a thin film transistor 51 is a bottom gate structure, and includes an active layer 52; the pressure sensor 10 and the active layer 52 are located on the same layer, and optionally, the material of the active layer 52 is polysilicon;
the pressure-sensitive signal line 34 is located at the same level as the data line M2, and the pressure sensor 10 is electrically connected to the pressure-sensitive signal line 34 through a via hole.
In addition, when the thin film transistor 51 has a bottom gate structure, the pressure sensor 10 and the pressure-sensitive signal line 34 can be always located on the side of the film layer where the gate electrode is located away from the substrate, and therefore, the driving signal line and the scanning line M1 can be always located on the same layer, the pressure-sensitive signal line 34 can be located on the same layer as any metal layer on the side of the film layer where the gate electrode is located away from the substrate, and the pressure sensor 10 can be located on the same layer as any metal layer and semiconductor layer on the side of the film layer where the gate electrode is located away from the substrate.
Optionally, the array substrate further includes a touch electrode layer or an anode layer and a cathode layer located on one side of the thin film transistor away from the substrate; or the array substrate further comprises a common electrode layer and a pixel electrode layer which are positioned on one side of the thin film transistor, which is far away from the substrate;
the pressure sensor is positioned on the same layer with any one of the data line, the anode layer, the cathode layer and the touch electrode layer, and the pressure sensing signal line is positioned on the same layer with any one of the data line, the anode layer, the cathode layer and the touch electrode layer; or, the pressure sensor and any one of the data line, the common electrode layer and the pixel electrode layer are located in the same layer, and the pressure sensing signal line and any one of the data line, the common electrode layer and the pixel electrode layer are located in the same layer.
Referring to fig. 11, the material of the pressure sensor 10 includes a semiconductor material, the thin film transistor 51 is a top gate structure, the array substrate includes a common electrode layer 53 and a pixel electrode layer 54 on a side of the thin film transistor 51 away from the substrate 40, the thin film transistor 51 includes an active layer 52; the pressure sensor 10 and the active layer 52 are located on the same layer, optionally, the active layer 52 is made of polysilicon, the pressure-sensitive signal line 34 and the data line M2 are located on the same layer, and the pressure-sensitive signal line 34 is electrically connected with the pressure sensor 10 through a via hole; at this time, in order to prevent the short circuit between the pressure-sensitive signal line 34 and the driving signal line, the driving signal line should be disposed on the side of the film layer where the data line M2 is located away from the substrate, and optionally, the driving signal line is located on the same layer as the common electrode layer 53 or the pixel electrode layer 54.
Alternatively, referring to fig. 12, the material of the pressure sensor 10 includes a metal material, the pressure sensor 10 is located at the same layer as the common electrode layer 53, and the pressure-sensitive signal line 34 is also located at the same layer as the common electrode layer 53. Alternatively, the pressure-sensitive signal line 34 may be located in the same layer as the data line M2 or the pixel electrode layer 54. In addition, the pressure sensor 10 may be located in the same layer as the data line M2 or the pixel electrode layer 54. In the above situations, the pressure sensor 10 and the pressure-sensitive signal line 34 are both located on the side of the gate away from the substrate 40, so the driving signal line and the scanning line can be located on the same layer, and the process flow is saved.
Referring to fig. 13, the material of the pressure sensor 10 includes a semiconductor material, the thin film transistor 51 is a top gate structure, the array substrate includes an anode layer 55 and a cathode layer 56 on a side of the thin film transistor 51 away from the substrate 40, the thin film transistor 51 includes an active layer 52; the pressure sensor 10 and the active layer 52 are located on the same layer, optionally, the active layer 52 is made of polysilicon, the pressure-sensitive signal line 34 and the data line M2 are located on the same layer, and the pressure-sensitive signal line 34 is electrically connected with the pressure sensor 10 through a via hole; at this time, in order to prevent the short circuit between the pressure-sensitive signal line 34 and the driving signal line, the driving signal line should be disposed on the side of the film layer where the data line M2 is located away from the substrate, and optionally, the driving signal line is located on the same layer as the anode layer 55 or the cathode layer 56.
Alternatively, referring to fig. 14, the material of the pressure sensor 10 includes a metal material, the pressure sensor 10 is located at the same layer as the data line M2, the pressure-sensitive signal line 34 is located at the same layer as the anode layer 55, and the pressure-sensitive signal line 34 is electrically connected to the pressure sensor 10 through a via hole. Alternatively, the pressure-sensitive signal line 34 may be located at the same layer as the data line M2 or the cathode layer 56. Alternatively, pressure sensor 10 may be located on the same layer as anode layer 55 or cathode layer 56. In the above situations, the pressure sensor 10 and the pressure-sensitive signal line 34 are both located on the side of the gate away from the substrate 40, so the driving signal line and the scanning line can be located on the same layer, and the process flow is saved.
In addition, the pressure sensor in the embodiment of the present invention may be a bridge type pressure sensor or a semiconductor pressure sensor.
Alternatively, as shown in fig. 15, the pressure sensor is quadrilateral, and is made of semiconductor material, and includes a first side 61 and a second side 62 which are oppositely arranged, and a third side 63 and a fourth side 64 which are oppositely arranged;
the pressure sensor includes a first power input terminal Vin1 located at the first side 61, a second power input terminal Vin2 located at the second side 62, a first pressure-sensitive signal output terminal Vout1 located at the third side 63, and a second pressure-sensitive signal output terminal Vout2 located at the fourth side 64;
the pressure-sensitive signal lines include a first power input signal line 341, a second power input signal line 342, a first pressure-sensitive signal output signal line 343, and a second pressure-sensitive signal output signal line 344, the first power input signal line 341 and the second power input signal line 342 being used for inputting a pressure-sensitive reference signal to the pressure sensor, the first pressure-sensitive signal output signal line 343 and the second pressure-sensitive signal output signal line 344 being used for outputting a pressure-sensitive signal from the pressure sensor;
the first power input signal line 341 is electrically connected to the first power input terminal Vin1, the second power input signal line 342 is electrically connected to the second power input terminal Vin2, the first pressure-sensitive signal output signal line 343 is electrically connected to the first pressure-sensitive signal output terminal Vout1, and the second pressure-sensitive signal output signal line 344 is electrically connected to the second pressure-sensitive signal output terminal Vout 2. The pressure sensor can be made smaller, which is beneficial to the design of narrower frames.
Alternatively, as shown in fig. 16, the pressure sensor may include a first pressure sensing resistor Ra, a second pressure sensing resistor Rb, a third pressure sensing resistor Rc, and a fourth pressure sensing resistor Rd;
a first end of the first pressure sensing resistor Ra and a first end of the fourth pressure sensing resistor Rd are electrically connected with the first power input terminal Vin1, a second end of the first pressure sensing resistor Ra and a first end of the second pressure sensing resistor Rb are electrically connected with the first pressure sensing signal output terminal Vout1, a second end of the fourth pressure sensing resistor Rd and a first end of the third pressure sensing resistor Rc are electrically connected with the second pressure sensing signal output terminal Vout2, and a second end of the second pressure sensing resistor Rb and a second end of the third pressure sensing resistor Rc are electrically connected with the second power input terminal Vin 2;
the pressure-sensitive signal lines include a first power input signal line 341, a second power input signal line 342, a first pressure-sensitive signal output signal line 343, and a second pressure-sensitive signal output signal line 344, the first power input signal line 341 and the second power input signal line 342 being used for inputting a pressure-sensitive reference signal to the pressure sensor, the first pressure-sensitive signal output signal line 343 and the second pressure-sensitive signal output signal line 344 being used for outputting a pressure-sensitive signal from the pressure sensor;
the first power input signal line 341 is electrically connected to the first power input terminal Vin1, the second power input signal line 342 is electrically connected to the second power input terminal Vin2, the first pressure-sensitive signal output signal line 343 is electrically connected to the first pressure-sensitive signal output terminal Vout1, and the second pressure-sensitive signal output signal line 344 is electrically connected to the second pressure-sensitive signal output terminal Vout 2. The pressure sensor is in a Wheatstone bridge structure, and each pressure sensing resistor can be made of metal materials or semiconductor materials.
Alternatively, as shown in fig. 17, the four pressure-sensitive resistors may be arranged in a concentrated manner, so that the temperature change of each pressure-sensitive resistor is the same, and the influence of the temperature effect is eliminated. Specifically, the pressure sensor further comprises a first extending direction a and a second extending direction b, and the first extending direction a and the second extending direction b intersect;
a component of an extension length of the first pressure-sensitive resistor Ra from the first end to the second end in the first extending direction a is larger than a component in the second extending direction b, a component of an extension length of the second pressure-sensitive resistor Rb from the first end to the second end in the second extending direction b is larger than a component in the first extending direction a, a component of an extension length of the third pressure-sensitive resistor Rc from the first end to the second end in the first extending direction a is larger than a component in the second extending direction b, and a component of an extension length of the fourth pressure-sensitive resistor Rd from the first end to the second end in the second extending direction b is larger than a component in the first extending direction a.
Optionally, each pressure-sensitive resistor is in a zigzag shape, so that on one hand, the size of each pressure-sensitive resistor is reduced while each pressure-sensitive resistor is ensured to have a larger reference resistance value, so that each pressure-sensitive resistor can be distributed in a smaller area, and the influence of temperature difference is eliminated; on the other hand, the contact area between each pressure-sensitive resistor and the substrate can be increased, so that each pressure-sensitive resistor can more accurately sense the strain of the display panel, and the pressure sensing precision is improved.
The embodiment of the invention also provides a display panel which comprises the array substrate in any one of the embodiments.
An embodiment of the present invention further provides a display device, and as shown in fig. 18, the display device 70 includes the display panel 701 according to the embodiment.
The display device 70 may be a mobile phone, a computer, a television, an intelligent wearable display device, and the like, which is not particularly limited in this embodiment.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. An array substrate, comprising:
a substrate including a display region and a non-display region surrounding the display region;
the driving circuit area is positioned in the non-display area on the substrate base plate and is provided with a driving circuit, and the driving circuit is electrically connected into the display area through a plurality of driving signal wires;
at least one pressure sensor located on the substrate between the driving circuit region and the display region;
a plurality of pressure-sensitive signal lines electrically connected to the pressure sensor, for inputting a pressure-sensitive reference signal to the pressure sensor and outputting a pressure-sensitive signal from the pressure sensor, respectively;
the non-display area comprises a first area and a second area which are sequentially distributed from the display area to the non-display area, the driving circuit area is located in the second area, and the second area is used for folding the driving circuit area to one side, away from the pressure sensor, of the substrate base plate;
at least a portion of the pressure sensor is located in the first region.
2. The array substrate of claim 1, wherein the pressure sensors and the pressure sensing signal lines are located in different layers than the driving signal lines.
3. The array substrate of claim 1, wherein the pressure sensors and the pressure sensing signal lines are located on the same layer or different layers.
4. The array substrate of claim 1, further comprising a plurality of scan lines in the display area, wherein the driving signal lines and the scan lines are in the same layer or different layers;
the non-display area is further provided with a scanning signal output line electrically connected with the driving circuit, the first end of the driving signal line is electrically connected with the scanning signal output line, and the second end of the driving signal line is electrically connected with the scanning line.
5. The array substrate of claim 4, wherein the driving signal lines and the scan lines are located at different layers, and the driving signal lines are electrically connected with the scan signal output lines and the scan lines through vias, respectively.
6. The array substrate of claim 4, further comprising a plurality of data lines in the display area, wherein the scan lines and the data lines cross each other to define a plurality of pixel units, and the pixel units comprise thin film transistors;
the thin film transistor includes an active layer; the pressure sensor and the active layer are positioned on the same layer;
the pressure-sensitive signal line and the data line are located on the same layer, and the pressure sensor is electrically connected with the pressure-sensitive signal line through a through hole.
7. The array substrate of claim 4, further comprising a plurality of data lines in the display area, wherein the scan lines and the data lines cross each other to define a plurality of pixel units, and the pixel units comprise thin film transistors;
the thin film transistor includes an active layer;
the array substrate further comprises a touch electrode layer or an anode layer and a cathode layer which are positioned on one side of the thin film transistor, which is far away from the substrate;
the pressure sensor and any one of the data line, the anode layer, the cathode layer and the touch electrode layer are positioned on the same layer, and the pressure sensing signal line and any one of the data line, the anode layer, the cathode layer and the touch electrode layer are positioned on the same layer.
8. The array substrate of claim 1, wherein the pressure sensor is quadrilateral, is made of semiconductor material, and comprises a first side and a second side which are oppositely arranged, and a third side and a fourth side which are oppositely arranged;
the pressure sensor comprises a first power input end positioned on the first side, a second power input end positioned on the second side, a first pressure-sensitive signal output end positioned on the third side and a second pressure-sensitive signal output end positioned on the fourth side;
the pressure-sensitive signal lines include a first power input signal line, a second power input signal line, a first pressure-sensitive signal output signal line, and a second pressure-sensitive signal output signal line, the first power input signal line and the second power input signal line are used for inputting a pressure-sensitive reference signal to the pressure sensor, and the first pressure-sensitive signal output signal line and the second pressure-sensitive signal output signal line are used for outputting a pressure-sensitive signal from the pressure sensor;
the first power input signal line is electrically connected with the first power input end, the second power input signal line is electrically connected with the second power input end, the first pressure sensing signal output signal line is electrically connected with the first pressure sensing signal output end, and the second pressure sensing signal output signal line is electrically connected with the second pressure sensing signal output end.
9. The array substrate of claim 1, wherein the pressure sensor comprises a first pressure sensing resistor, a second pressure sensing resistor, a third pressure sensing resistor and a fourth pressure sensing resistor;
the first end of the first pressure sensing resistor and the first end of the fourth pressure sensing resistor are electrically connected with a first power input end, the second end of the first pressure sensing resistor and the first end of the second pressure sensing resistor are electrically connected with a first pressure sensing signal output end, the second end of the fourth pressure sensing resistor and the first end of the third pressure sensing resistor are electrically connected with a second pressure sensing signal output end, and the second end of the second pressure sensing resistor and the second end of the third pressure sensing resistor are electrically connected with a second power input end;
the pressure-sensitive signal lines include a first power input signal line, a second power input signal line, a first pressure-sensitive signal output signal line, and a second pressure-sensitive signal output signal line, the first power input signal line and the second power input signal line are used for inputting a pressure-sensitive reference signal to the pressure sensor, and the first pressure-sensitive signal output signal line and the second pressure-sensitive signal output signal line are used for outputting a pressure-sensitive signal from the pressure sensor;
the first power input signal line is electrically connected with the first power input end, the second power input signal line is electrically connected with the second power input end, the first pressure sensing signal output signal line is electrically connected with the first pressure sensing signal output end, and the second pressure sensing signal output signal line is electrically connected with the second pressure sensing signal output end.
10. The array substrate of claim 9, wherein the pressure sensor further comprises a first extending direction and a second extending direction, the first extending direction and the second extending direction intersecting;
the component of the extension length of the first pressure-sensitive resistor from the first end to the second end in the first extension direction is greater than the component of the extension length of the second pressure-sensitive resistor from the first end to the second end in the second extension direction, the component of the extension length of the third pressure-sensitive resistor from the first end to the second end in the first extension direction is greater than the component of the extension length of the third pressure-sensitive resistor from the first end to the second end in the second extension direction, and the component of the extension length of the fourth pressure-sensitive resistor from the first end to the second end in the second extension direction is greater than the component of the extension length of the fourth pressure-sensitive resistor in the first extension direction.
11. The array substrate of claim 1, wherein the driving circuit is a gate driving circuit comprising a plurality of stages of shift registers, each stage of shift register being electrically connected to at least one of the driving signal lines;
the plurality of driving signal lines are parallel to each other and are arranged periodically.
12. A display panel comprising the array substrate according to any one of claims 1 to 11.
13. A display device characterized by comprising the display panel according to claim 12.
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| CN107390944B (en) * | 2017-08-30 | 2020-04-21 | 厦门天马微电子有限公司 | Display panel and touch pressure calculation method of display panel |
| CN107491218B (en) * | 2017-08-30 | 2021-02-09 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| CN107491220B (en) * | 2017-08-31 | 2020-05-29 | 厦门天马微电子有限公司 | Display panel and display device |
| CN107589870B (en) * | 2017-09-12 | 2019-12-17 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN107589872A (en) * | 2017-09-20 | 2018-01-16 | 厦门天马微电子有限公司 | A kind of display panel and display device |
| CN107561761B (en) * | 2017-09-20 | 2020-09-01 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN107656643B (en) * | 2017-09-26 | 2020-08-11 | 厦门天马微电子有限公司 | Display panel and electronic equipment |
| CN107527600A (en) * | 2017-09-26 | 2017-12-29 | 厦门天马微电子有限公司 | A kind of display panel and display device |
| CN107704134B (en) * | 2017-09-30 | 2021-04-20 | 厦门天马微电子有限公司 | Display panel and display device |
| CN107562284B (en) * | 2017-10-24 | 2020-10-23 | 武汉天马微电子有限公司 | Display panel and display device |
| CN107844217A (en) * | 2017-10-26 | 2018-03-27 | 厦门天马微电子有限公司 | A kind of display panel and display device |
| TWI626579B (en) * | 2017-12-06 | 2018-06-11 | 友達光電股份有限公司 | Display panel |
| CN107967081B (en) * | 2018-01-02 | 2021-02-26 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| CN108447433A (en) * | 2018-02-28 | 2018-08-24 | 厦门天马微电子有限公司 | Curved face display panel and its stress mornitoring and voltage adjusting method |
| WO2019213886A1 (en) * | 2018-05-10 | 2019-11-14 | Li Xiuqiu | Display system and intelligent flat display apparatus |
| CN110277026B (en) * | 2019-07-25 | 2022-05-20 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN112509470B (en) * | 2020-11-30 | 2022-05-20 | 合肥维信诺科技有限公司 | Rollable display panel and rollable display device |
| CN114981764A (en) * | 2020-12-23 | 2022-08-30 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
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