CN107315501B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107315501B CN107315501B CN201710520928.6A CN201710520928A CN107315501B CN 107315501 B CN107315501 B CN 107315501B CN 201710520928 A CN201710520928 A CN 201710520928A CN 107315501 B CN107315501 B CN 107315501B
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- display panel
- resistor
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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
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a display panel and a display device. In one aspect, the display panel includes: a display area and a non-display area surrounding the display area; the graph formed by the display area comprises four sides which are parallel in pairs, and the area of the graph formed by the extension lines of the four sides is larger than that of the graph formed by the display area; the display panel further includes: and the pressure detection sensor is positioned in an area enclosed by a graph formed by extension lines of two adjacent sides of the four sides and the display area. In the embodiment of the invention, the width of the non-display area corresponding to the long edge of the display panel is not influenced by the size of the area, so that the width of the non-display area corresponding to the long edge of the display panel is not increased, and the narrow edge of the display panel is not influenced after the pressure detection sensor is added in the display panel.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
In the prior art, in order to enable the display panel to sense the pressure when a touch main body (such as a finger) presses the display panel, a pressure sensor is added in the display panel, and the pressure when the touch main body presses the display panel is sensed through the pressure sensor, wherein the pressure sensor added in the display panel is arranged in a non-display area corresponding to a long edge of the display panel and is arranged along the extending direction of the long edge of the display panel.
Along with the development of science and technology, display panel tends to narrow limit development, that is, it is required that the width of the non-display area of display panel in the extending direction of the short side of display panel is reduced, there are numerous wirings in display panel, such as gate driving circuit, gate driving circuit sets up in the non-display area that the long side of display panel corresponds, and be connected to integrated circuit along the extending direction of the long side of display panel, therefore, in the prior art, set up pressure sensor in the non-display area that the long side of display panel corresponds, and when arranging along the extending direction of the long side of display panel, can increase the width of the non-display area that the long side of display panel corresponds, be unfavorable for display panel to realize the narrow limit.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, so as to solve the problem in the prior art that when pressure sensors are disposed in non-display areas corresponding to long sides of the display panel and are arranged along an extending direction of the long sides of the display panel, the width of the non-display areas corresponding to the long sides of the display panel is increased, which is not beneficial to realizing narrow sides of the display panel.
In one aspect, embodiments of the present invention provide a display panel, where the display panel includes a display area and a non-display area surrounding the display area; the graph formed by the display area comprises four sides which are parallel in pairs, and the area of the graph formed by the extension lines of the four sides is larger than that of the graph formed by the display area;
the display panel further includes: and the pressure detection sensor is positioned in an area enclosed by a graph formed by the extension lines of two adjacent sides of the four sides and the display area.
Optionally, when the number of the pressure detection sensors is not less than four, at least one pressure detection sensor is disposed in each region surrounded by a graph formed by extension lines of two adjacent sides of the four sides and the display region.
Optionally, the display panel further comprises:
an array substrate;
the array substrate includes:
a first substrate base plate;
a plurality of data lines and a plurality of scanning lines on the first substrate, wherein the data lines and the scanning lines are crossed and insulated to define a plurality of pixel units;
on the first substrate, a thin film transistor is not arranged in a pixel unit located in a region surrounded by a graph formed by extension lines of two adjacent sides of the four sides and the display region, and a thin film transistor is arranged in a pixel unit located in the display region.
Optionally, the pressure detection sensor includes:
the pressure-sensitive bridge comprises a pressure-sensitive bridge, a first input end, a second input end, a first output end and a second output end;
the pressure-sensitive bridge comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
a first end of the first resistor is electrically connected with a first end of the second resistor, a second end of the first resistor is electrically connected with the first output end, and a second end of the second resistor is electrically connected with the second output end;
a first end of the third resistor is electrically connected with a first end of the fourth resistor, a second end of the third resistor is electrically connected with the first output end, and a second end of the fourth resistor is electrically connected with the second output end;
the first end of the first resistor is electrically connected with the first input end;
the first end of the third resistor is electrically connected with the second input end.
Optionally, the first resistor and the fourth resistor are disposed in the same layer as the active layer of the thin film transistor, and/or the second resistor and the third resistor are disposed in the same layer as the active layer of the thin film transistor.
Optionally, the pressure detection sensor includes: the device comprises a semiconductor resistor disc, a first input end, a second input end, a first output end and a second output end;
the semiconductor resistor disc is of a quadrilateral structure, wherein four sides of the semiconductor resistor disc are electrically connected with the first input end, the second input end, the first output end and the second output end respectively, the first input end and the second input end are electrically connected to two opposite sides of the four sides respectively, and the first output end and the second output end are electrically connected to the other two opposite sides of the four sides respectively.
Optionally, the semiconductor resistor sheet and the active layer of the thin film transistor are arranged in the same layer.
Optionally, the display panel includes a display stage and a touch stage, and the display stage and the touch stage are alternately arranged.
Optionally, the pressure detection sensor further comprises: a switch comprising a first end, a second end, and a control end;
the first end is electrically connected with an input signal source, the second end is electrically connected with the first input end, and the control end is electrically connected with a clock signal source, wherein the clock signal source provides a preset level voltage at the touch control stage, the input signal source can input signals to the first input end, and the second input end is electrically connected with a reference potential.
Optionally, the display panel further comprises:
a color film substrate;
the color film substrate comprises:
a second substrate base plate;
the color resistance layer is positioned on the second substrate base plate;
the black matrix is positioned on the surface of one side of the second substrate base plate, which is provided with the color resistance layer;
the color resistance layer is not arranged in a region surrounded by a pattern formed by extension lines of two adjacent sides of the four sides and the display region on the second substrate; on the second substrate, in a region surrounded by a pattern formed by the extension lines of two adjacent sides of the four sides and the display region, the coverage area of the black matrix is equal to the coverage area of a region surrounded by the extension lines of two adjacent sides of the four sides and the pattern formed by the display region.
Optionally, the display panel further comprises:
the display panel comprises a display area, a sealant, a pressure detection sensor and a display area, wherein the sealant is arranged around the display area, the orthographic projection of the display area on the display panel is not overlapped with the orthographic projection of the sealant on the display panel, and the orthographic projection of the sealant on the display panel is not completely overlapped with the orthographic projection of the pressure detection sensor on the display panel.
On the other hand, the embodiment of the invention also provides a display device, which comprises the display panel.
Any one of the above technical solutions has the following beneficial effects:
in the embodiment of the invention, the graph formed by the display area of the display panel comprises four sides which are parallel in pairs, the area of the graph formed by the extension lines of the four sides is larger than that of the graph formed by the display area, after the design is adopted, a certain area is arranged between the extension lines of two adjacent sides of the four sides and the graph formed by the display area, because the orthographic projection of the non-display area corresponding to the long side of the display panel on the display panel and the orthographic projection of the display area of the display panel on the display panel are defined by the two sides which are parallel to the long side of the display panel in the four sides, the size of the area does not influence the width of the non-display area corresponding to the long side of the display panel, and the area has a certain area, so that the pressure detection sensor is arranged in the area, the width of the non-display area corresponding to the long side of the display panel, furthermore, after the pressure detection sensor is added in the display panel, the display panel is not affected to realize narrow edge.
[ description of the 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 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 top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a top view of another display panel according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along direction AA' in FIG. 2;
fig. 4A is a schematic structural diagram of a pressure detection sensor provided in an embodiment of the present invention;
fig. 4B is a schematic structural diagram of another pressure detection sensor provided in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another pressure sensor provided in an embodiment of the present invention;
FIG. 6 is a top view of another display panel according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along direction BB' in FIG. 6;
FIG. 8 is a top view of another display panel according to an embodiment of the present invention;
fig. 9 is a diagram illustrating a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 (only illustrating the case that the display area is a rounded rectangle), fig. 1 is a top view of a display panel provided by an embodiment of the present invention, wherein the display panel includes a display area 11 and a non-display area 12 surrounding the display area 11; the graph formed by the display area 11 comprises four sides which are parallel in pairs, and the area of the graph formed by the extension lines of the four sides is larger than that of the graph formed by the display area 11; the display panel further includes: and at least one pressure detection sensor 13, wherein the pressure detection sensor 13 is positioned in an area enclosed by a graph formed by extension lines of two adjacent sides of the four sides and the display area 11.
Specifically, as shown in fig. 1, the graph formed by the display area 11 includes four parallel sides and four arc-shaped curves connecting the four sides, extension lines of the four sides are shown as four dotted lines in fig. 1, the four dotted lines can enclose a right-angled rectangle, and an area of the right-angled rectangle is larger than an area of the graph formed by the display area 11, that is, the area of the right-angled rectangle is larger than an area of a rounded rectangle in fig. 1, so that a certain area is provided between the four dotted lines and the rounded rectangle, and the area is located on a side of the four dotted lines close to the center of the display panel, and a frame of the display panel (a non-display area 12 corresponding to a long side of the display panel) is located on a side of the four dotted lines far from the center of the display panel, so that the size of the area does not affect a width of the frame of the display panel (a span of a side frame, and this region has certain area to set up pressure detection sensor 13 in this region, can not increase display panel's frame width, and then can increase pressure detection sensor 13 back in display panel, can not influence display panel and realize the narrow limit. It should be noted that the four sides may be connected by a straight line, a curved line, a wavy line, a zigzag line, etc.
Meanwhile, when the display panel is manufactured, sealant needs to be coated on the edge of the substrate of the display panel to encapsulate the upper and lower substrates of the display panel, on the premise that the display panel is narrowed, when the display area 11 of the display panel is rectangular, the distance from the right angle vertex of the display panel to the edge of the display area 11 is smaller, after the sealant is coated on the four right angles of the display panel, the probability that the sealant covers the display area 11 is higher, namely the probability that the sealant covers the display area 11 is higher, which affects the display effect, as shown in fig. 1, after the display area 11 is designed into a rectangular with a rounded angle, the distance from the right angle vertex of the display panel to the edge of the display area 11 is increased, and further, after the sealant is coated on the four right angles of the display panel, the probability that the sealant covers the display area 11 is lower, namely the probability that the sealant covers the display area 11 is smaller, the display effect is improved.
Alternatively, as shown in fig. 1, when the number of the pressure detection sensors 13 is not less than four, at least one pressure detection sensor 13 is provided in each region surrounded by a graph formed by the extended lines of two adjacent sides of the four sides and the display region 11.
Specifically, in order to provide the pressure detection sensors 13 to effectively detect the entire display area 11 and to ensure the detection sensitivity of each area in the entire display area 11, when the number of the pressure detection sensors 13 provided is not less than four, for example, when the number of the pressure detection sensors 13 provided is four, as shown in fig. 1, one pressure detection sensor 13 is provided in each area, and for example, when the number of the pressure detection sensors 13 provided is five, one pressure sensor may be provided in each of three areas, and two pressure detection sensors 13 may be provided in the other area, when the number of the pressure detection sensors 13 provided is not less than four, the specific setting mode can be set according to actual requirements.
When the number of the pressure detection sensors 13 is less than four, for example, when the number of the pressure detection sensors 13 is three, one pressure detection sensor 13 may be respectively disposed in three of the four regions, and the other remaining one region is not provided with the pressure detection sensor 13, for example, when the number of the pressure detection sensors 13 is two, the pressure detection sensors 13 may be disposed in two regions corresponding to a set of diagonals of a right-angled rectangle, wherein one pressure detection sensor 13 is disposed in each region, and the other two regions corresponding to a set of diagonals are not provided with the pressure detection sensors 13, and when the number of the pressure detection sensors 13 is less than four, a specific disposition manner may be set according to actual requirements.
Optionally, as shown in fig. 2, fig. 2 is a top view of another display panel provided in an embodiment of the present invention, as shown in fig. 3, and fig. 3 is a cross-sectional view taken along direction AA' in fig. 2, where the display panel further includes: an array substrate 14; the array substrate 14 includes: a first substrate board 141; a plurality of data lines 142 and a plurality of scan lines 143 on the first substrate 141, the plurality of data lines 142 and the plurality of scan lines 143 crossing and insulating to define a plurality of pixel units 144; on the first substrate 141, the thin film transistor 145 is not provided in the pixel unit 144 located in a region surrounded by a pattern formed by extension lines of two adjacent four sides and the display region 11, and the thin film transistor 145 is provided in the pixel unit 144 located in the display region 11.
Specifically, as shown in fig. 2 and 3, a plurality of data lines 142 and a plurality of scan lines 143 cross over the first substrate 141 to define a plurality of pixel units 144, in the display region 11, a thin film transistor 145 is included in each pixel unit 144, and in order to reduce the difficulty of the process, one thin film transistor 145 is also provided in each pixel unit 144 in the non-display area 12, but since the pressure detection sensor 13 has a certain thickness, since the thickness of the display panel is increased if the pressure detection sensor 13 is provided in the region surrounded by the pattern formed by the extended lines of two adjacent sides among the four sides of the display region 11 and the display region 11, in order not to increase the thickness of the display panel, the pressure detection sensor 13 is not provided in a region surrounded by a pattern formed by an extended line of two adjacent sides among the four sides of the display region 11 and the display region 11.
As shown in fig. 2 and 3, a plurality of scan lines 143 are included on the first substrate 141, the plurality of scan lines 143 and the plurality of data lines 142 are insulated and crossed to define a plurality of pixel units 144, each pixel unit 144 includes a thin film transistor 145 and a pixel electrode 149, each thin film transistor 145 includes a gate electrode 146, a source electrode 147 and a drain electrode 148, wherein the source electrode 147 and the drain electrode 148 are located on a source-drain metal layer, the gate electrode 146 is located on a gate electrode 146 layer, an active layer 150 is further included between the source-drain metal layer and the gate electrode 146 layer, and an insulating layer 151 is located between the active layer 150 and the gate electrode 146 layer, wherein the gate electrode 146 of the thin film transistor 145 is electrically connected to the corresponding scan line 143, the source electrode 147 of the thin film transistor 145 is electrically connected to the corresponding data line 142, the drain electrode 148 of the thin film transistor 145 is electrically connected to the corresponding pixel electrode 149, when a scan signal passes through one scan line 143 when the display panel is, the source electrode 147 and the drain electrode 148 of the corresponding row of the thin film transistor 145 are turned on by turning on the corresponding row of the thin film transistor 145, and the pixel electrodes 149 in the row are charged to have a certain potential by passing a data signal through the plurality of data lines 142.
Optionally, as shown in fig. 4A, fig. 4A is a schematic structural diagram of a pressure detection sensor provided in an embodiment of the present invention, where the pressure detection sensor 13 includes: a pressure sensitive bridge 131, a first input terminal, a second input terminal, a first output terminal, and a second output terminal; the pressure-sensitive bridge 131 comprises a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; a first end of the first resistor R1 is electrically connected with a first end of the second resistor R2, a second end of the first resistor R1 is electrically connected with a first output end, and a second end of the second resistor R2 is electrically connected with a second output end; a first end of the third resistor R3 is electrically connected with a first end of the fourth resistor R4, a second end of the third resistor R3 is electrically connected with a first output end, and a second end of the fourth resistor R4 is electrically connected with a second output end; a first end of the first resistor R1 is electrically connected with a first input end; a first terminal of the third resistor R3 is electrically connected to the second input terminal.
Specifically, as shown IN fig. 4A, the pressure-sensitive bridge 131 includes a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein a first end of the first resistor R1 is electrically connected to the first input terminal IN1, a first end of the second resistor R2 is electrically connected to the first input terminal IN1, a second end of the first resistor R1 is electrically connected to the first output terminal Fout1, a second end of the second resistor R2 is electrically connected to the second output terminal Fout2, a first end of the third resistor R3 is electrically connected to the second input terminal IN2, a first end of the fourth resistor R4 is electrically connected to the second input terminal IN2, a second end of the third resistor R3 is electrically connected to the first output terminal Fout1, a second end of the fourth resistor R4 is electrically connected to the second output terminal Fout2, wherein when the display panel is not subjected to an external pressure, a ratio of the first resistor R82 1 and the third resistor R8269556 is equal to a ratio of the second output terminal Fout 8653, when the touch display panel deforms, R1, R2, R3 and R4 disposed on the display panel deform, which causes resistance values of the touch display panel to change, which causes the bridge to lose balance, the first output terminal Fout1 and the second output terminal Fout2 of the pressure-sensitive bridge 131 output different electrical signals, and the magnitude of the pressure value of the external world on the display panel can be determined based on the electrical signals output by the first output terminal Fout1 and the second output terminal Fout 2.
Optionally, when the display panel is not subjected to an external pressure, the reference resistances of the first resistor R1 and the second resistor R2 are the same, and the reference resistances of the third resistor R3 and the fourth resistor R4 are the same.
Optionally, under the same external pressure, the resistance value change rates of the first resistor R1 and the fourth resistor R4 are the same, the resistance value change rates of the second resistor R2 and the third resistor R3 are the same, and the resistance value change rates of the first resistor R1 and the second resistor R2 are different.
Alternatively, as shown in fig. 2, 3 and 4A, the first resistor R1 and the fourth resistor R4 are disposed at the same level as the active layer 150 of the thin film transistor 145, and/or the second resistor R2 and the third resistor R3 are disposed at the same level as the active layer 150 of the thin film transistor 145.
Specifically, as shown in fig. 2, since the thin film transistor 145 is not disposed in the pixel unit 144 located in the region surrounded by the extended lines of two adjacent sides of the display region 11 and the graph formed by the display region 11, and the thin film transistor 145 is disposed in the pixel unit 144 of the display region 11, in order to make the thicknesses of the display panels corresponding to the two regions the same or nearly the same, as shown in fig. 3 and 4A, the first resistor R1 and the fourth resistor R4 may be formed in the same layer as the active layer 150 of the thin film transistor 145, and/or the second resistor R2 and the third resistor R3 may be formed in the same layer as the active layer 150 of the thin film transistor 145, and when the display panel is subjected to an external pressure, the resistance change rates of the first resistor R1 and the fourth resistor R4 may be the same, and the resistance change rates of the second resistor R2 and the third resistor R3 may be the same, further, the resistance change rates of the first resistor R1 and the second resistor R2 can be different, so that the pressure sensing bridge 131 can output a pressure sensing signal when being acted by the external pressure.
As shown in fig. 4B, fig. 4B is a schematic structural diagram of another pressure detecting sensor provided in the embodiment of the present invention, and as shown in fig. 4B, the pressure detecting sensor includes a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4; a first end a of the first resistor R1 and a first end a 'of the third resistor R3 are electrically connected to the first input terminal IN1, a second end b of the first resistor R1 and a first end b' of the second resistor R2 are electrically connected to the first output terminal Fout1, a second end d of the third resistor R3 and a first end d 'of the fourth resistor R4 are electrically connected to the second output terminal Fout2, and a second end c of the second resistor R2 and a second end c' of the fourth resistor R4 are electrically connected to the second input terminal IN 2; the first input terminal IN1 and the second input terminal IN2 are used for inputting bias voltage signals to the pressure detection sensor; the first output terminal Fout1 and the second output terminal Fout2 are used to output a pressure-sensitive detection signal from the pressure detection sensor.
With continued reference to fig. 4B, the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 form a wheatstone bridge configuration. When a bias voltage signal is input to the first input terminal IN1 and the second input terminal IN2, current flows through each branch of the Wheatstone bridge. At this time, when the display panel is pressed, the resistances of the internal resistors (including the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4) of the pressure detection sensor (including the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4) are all changed due to the shearing force from the corresponding position on the display panel, so that the pressure detection signals output by the first output terminal Fout1 and the second output terminal Fout2 of the pressure detection sensor are different from the pressure detection signals output by the first output terminal Fout1 and the second output terminal Fout2 of the pressure detection sensor when no pressure is applied, and accordingly, the magnitude of the touch pressure can be determined.
Since the wheatstone bridge is disposed on the display panel, when pressure is applied to the display panel, the touch display panel deforms, and the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 disposed on the display panel all deform, and in order to be able to detect the magnitude of the touch pressure, it is necessary that the deformations sensed by the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 are different.
Alternatively, referring to fig. 4B, the pressure detection sensor may further include a first extending direction 100 and a second extending direction 200, the first extending direction 100 and the second extending direction 200 are arranged to intersect, a component of an extending length of the first resistor R1 from the first end a to the second end B in the first extending direction 100 is greater than a component in the second extending direction 200, a component of an extending length of the second resistor R2 from the first end B 'to the second end c in the second extending direction 200 is greater than a component in the first extending direction 100, a component of an extending length of the third resistor R3 from the first end a' to the second end d in the second extending direction 200 is greater than a component in the first extending direction 100, and a component of an extending length of the fourth resistor R4 from the first end d 'to the second end c' in the first extending direction 100 is greater than a component in the second extending direction 200. The arrangement may be such that the first resistor R1 and the fourth resistor R4 sense strain in the first direction of extension 100 and the second resistor R2 and the third resistor R4 sense strain in the second direction of extension 200.
Optionally, as shown in fig. 5, fig. 5 is a schematic structural diagram of another pressure detection sensor provided in an embodiment of the present invention, where the pressure detection sensor 13 includes: the semiconductor resistor disc 132, a first input end, a second input end, a first output end and a second output end; the semiconductor resistor disc 132 has a quadrilateral structure, wherein four sides of the semiconductor resistor disc 132 are electrically connected to the first input terminal, the second input terminal, the first output terminal and the second output terminal respectively, the first input terminal and the second input terminal are electrically connected to two opposite sides of the four sides respectively, and the first output terminal and the second output terminal are electrically connected to the other two opposite sides of the four sides respectively.
Specifically, as shown IN fig. 5, the semiconductor resistor disc 132 may have a quadrilateral structure, four sides of which are respectively connected to the first input terminal IN1, the second input terminal IN2, the first output terminal Fout1 and the second output terminal Fout2, the first input terminal IN1 and the second input terminal IN2 are respectively connected to two opposite sides, and the first output terminal Fout1 and the second output terminal Fout2 are respectively connected to the other two opposite sides. When the display panel is pressed to deform, the impedance of the semiconductor resistor disc 132 changes correspondingly, so that the strain voltage of the semiconductor resistor disc also changes correspondingly, so that the first output end Fout1 and the second output end Fout2 output different electric signals, and the magnitude of the pressure value of the outside world on the display panel can be determined based on the electric signals output by the first output end Fout1 and the second output end Fout 2.
Alternatively, as shown in fig. 2, 3 and 5, the semiconductor resistor sheet 132 is disposed in the same layer as the active layer 150 of the thin film transistor 145.
Specifically, as shown in fig. 2, 3 and 5, since the thin film transistor 145 is not disposed in the pixel unit 144 located in the region surrounded by the extended lines of two adjacent sides of the four sides of the display region 11 and the graph formed by the display region 11, and the thin film transistor 145 is disposed in the pixel unit 144 of the display region 11, in order to make the thicknesses of the display panels corresponding to the two regions the same or nearly the same, as shown in fig. 3 and 5, the semiconductor resistor 132 and the active layer 150 of the thin film transistor 145 may be disposed in the same layer, and when the display panel is subjected to the external pressure after the above design is adopted, the pressure sensitive bridge 131 may output the pressure sensitive signal when the display panel is subjected to the external pressure.
Optionally, the display panel includes a display stage and a touch stage, and the display stage and the touch stage are alternately arranged.
Specifically, the touch stage and the display stage of the display panel are alternately arranged, that is, the display stage enters the touch stage after the display stage is finished, and the display stage enters the display stage after the touch stage is finished. Wherein, in the display stage, the display panel is used for displaying pictures; in the touch stage, the display panel is used to determine the touch position of a touch subject (e.g., a user's finger) and determine the magnitude of the touch pressure.
Alternatively, as shown in fig. 4A and 5, the pressure detection sensor 13 further includes: a switch 133, the switch 133 including a first terminal, a second terminal, and a control terminal; the first terminal is electrically connected to the input signal source 134, the second terminal is electrically connected to the first input terminal, and the control terminal is electrically connected to the clock signal source 135, wherein the clock signal source 135 provides a predetermined level voltage at the touch stage, the input signal source 134 can input a signal to the first input terminal, and the second input terminal is electrically connected to the reference potential.
Specifically, since the touch stage and the display stage of the display panel are alternately arranged, further, only in the touch stage, the display panel can obtain the pressure on the display panel from the outside, and in the display stage, the real panel cannot obtain the pressure on the display panel from the outside, so that only the pressure detecting sensor 13 needs to be in the working state in the touch stage, and therefore, a clock signal source 135 can be added, and the clock signal source 135 provides the preset level voltage in the touch stage, when the clock signal source 135 provides the preset level voltage in the touch stage, the switch 133 is in the conducting state, and the output signal source can input a signal to the first input end, so that the pressure detecting sensor 13 is in the working state, and since the pressure detecting sensor 13 is in the working state only in the touch stage and does not work in the display stage, the design can reduce the electric energy consumed by the pressure detecting sensor 13, wherein, the reference potential electrically connected to the second input terminal may be a ground potential.
Optionally, as shown in fig. 6, fig. 6 is a top view of another display panel provided in the embodiment of the present invention, as shown in fig. 7, and fig. 7 is a cross-sectional view taken along a direction BB' in fig. 6, where the display panel further includes: a color film substrate 15; the color filter substrate 15 includes: a second substrate base plate 152; a color resist layer 153, the color resist layer 153 being on the second substrate base plate 152; a black matrix 154, the black matrix 154 being located on a surface of the second substrate base 152 on the side where the color resist layer 153 is provided; wherein, on the second substrate 152, the color resist layer 153 is not provided in a region surrounded by a pattern formed by an extension line of two adjacent sides among four sides and the display region 11; on the second substrate 152, in a region surrounded by the extended lines of two adjacent sides of the four sides and the pattern formed by the display region 11, the coverage area of the black matrix 154 is equal to the coverage area of the region surrounded by the extended lines of two adjacent sides of the four sides and the pattern formed by the display region 11.
Specifically, the second substrate base plate 152 is disposed opposite to the first substrate base plate 141, the color resistance layer 153 is disposed on a side of the second substrate base plate 152 facing the first substrate base plate 141, as shown in fig. 6 and 7, in the display region 11, the black matrix 154 includes a plurality of openings, each of which is provided with a color resistance of a different color, for example, including a red color resistance, a blue color resistance, and a green color resistance, and the red color resistance, the blue color resistance, and the green color resistance constitute the color resistance layer 153, wherein the black matrix 154 is configured to shield a region of the display panel where no light is emitted, for example, a region where the data line 142, the scanning line 143, and the touch line are located, and to prevent cross color between the adjacent two color resistances, since the pressure detection sensor 13 is disposed in a region surrounded by an extension line of the adjacent two sides among the four sides and a pattern formed by the display region 11, and the pressure detection sensor 13 is disposed in a non-light-emitting region, the black matrix 154 may completely cover an area surrounded by a graph formed by an extension line of two adjacent sides of the four sides and the display area 11 so that the black matrix 154 can completely shield the pressure detection sensor 13.
Optionally, as shown in fig. 8, fig. 8 is a top view of another display panel provided in an embodiment of the present invention, where the display panel further includes: the sealant 16 is disposed around the display region 11, an orthogonal projection of the display region 11 on the display panel does not overlap with an orthogonal projection of the sealant 16 on the display panel, and the orthogonal projection of the sealant 16 on the display panel does not completely overlap with an orthogonal projection of the pressure detection sensor 13 on the display panel.
Specifically, as shown in fig. 8, the sealant 16 has a packaging effect on the display panel, and in order not to affect the normal operation of the pressure detection sensor 13, when the sealant 16 is disposed, the orthographic projection of the sealant 16 on the display panel cannot completely cover the orthographic projection of the pressure detection sensor 13 on the display panel, so as to ensure that the pressure detection sensor 13 can deform sufficiently accordingly and output a pressure sensing signal when the display panel is subjected to an external pressure.
As shown in fig. 9, fig. 9 provides a display device according to an embodiment of the present invention, which includes the display panel 100.
Specifically, the detailed description of the display panel is provided above, and is not repeated herein.
It should be noted that the display panel 100 according to the embodiment of the present invention may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, and the like.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A display panel characterized by comprising a display area and a non-display area surrounding the display area; the figure formed by the display area comprises four edges which are parallel in pairs, and the area of the figure formed by the four edges and the extension lines of the four edges are larger than that of the figure formed by the display area;
the display panel further includes: and the pressure detection sensor is positioned in an area enclosed by a graph formed by the extension lines of two sides which are not parallel to each other in the four sides and the display area.
2. The display panel of claim 1,
when the number of the pressure detection sensors is not less than four, at least one pressure detection sensor is arranged in each area surrounded by the extended lines of two sides which are not parallel to each other in the four sides and the graph formed by the display area.
3. The display panel of claim 1, wherein the display panel further comprises:
an array substrate;
the array substrate includes:
a first substrate base plate;
a plurality of data lines and a plurality of scanning lines on the first substrate, wherein the data lines and the scanning lines are crossed and insulated to define a plurality of pixel units;
on the first substrate, a thin film transistor is not disposed in a pixel unit located in a region surrounded by a pattern formed by extension lines of two sides which are not parallel to each other among the four sides and the display region, and a thin film transistor is disposed in a pixel unit located in the display region.
4. The display panel according to claim 3, wherein the pressure detection sensor includes:
the pressure-sensitive bridge comprises a pressure-sensitive bridge, a first input end, a second input end, a first output end and a second output end;
the pressure-sensitive bridge comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
a first end of the first resistor is electrically connected with a first end of the second resistor, a second end of the first resistor is electrically connected with the first output end, and a second end of the second resistor is electrically connected with the second output end;
a first end of the third resistor is electrically connected with a first end of the fourth resistor, a second end of the third resistor is electrically connected with the first output end, and a second end of the fourth resistor is electrically connected with the second output end;
the first end of the first resistor is electrically connected with the first input end;
the first end of the third resistor is electrically connected with the second input end.
5. The display panel according to claim 4, wherein the first resistor and the fourth resistor are disposed in the same layer as an active layer of the thin film transistor, and/or wherein the second resistor and the third resistor are disposed in the same layer as the active layer of the thin film transistor.
6. The display panel according to claim 3, wherein the pressure detection sensor includes: the device comprises a semiconductor resistor disc, a first input end, a second input end, a first output end and a second output end;
the semiconductor resistor disc is of a quadrilateral structure, wherein four sides of the semiconductor resistor disc are electrically connected with the first input end, the second input end, the first output end and the second output end respectively, the first input end and the second input end are electrically connected to two opposite sides of the four sides respectively, and the first output end and the second output end are electrically connected to the other two opposite sides of the four sides respectively.
7. The display panel of claim 6, wherein the semiconductor resistive sheet sensor is disposed in a same layer as an active layer of the thin film transistor.
8. The display panel according to claim 4 or 6, wherein the display panel comprises a display phase and a touch phase, and the display phase and the touch phase are alternately arranged.
9. The display panel of claim 8,
the pressure detection sensor further includes: a switch comprising a first end, a second end, and a control end;
the first end is electrically connected with an input signal source, the second end is electrically connected with the first input end, and the control end is electrically connected with a clock signal source, wherein the clock signal source provides a preset level voltage at the touch control stage, the input signal source can input signals to the first input end, and the second input end is electrically connected with a reference potential.
10. The display panel of claim 1, wherein the display panel further comprises:
a color film substrate;
the color film substrate comprises:
a second substrate base plate;
the color resistance layer is positioned on the second substrate base plate;
the black matrix is positioned on the surface of one side of the second substrate base plate, which is provided with the color resistance layer;
the second substrate is provided with a color resistance layer, and the color resistance layer is arranged in a region surrounded by a figure formed by extension lines of two sides which are not parallel to each other in the four sides and the display region; on the second substrate, in a region surrounded by a pattern formed by the extension lines of two sides which are not parallel to each other among the four sides and the display region, a coverage area of the black matrix is equal to a coverage area of a region surrounded by the extension lines of the two sides which are not parallel to each other among the four sides and the pattern formed by the display region.
11. The display panel of claim 1, wherein the display panel further comprises:
the display panel comprises a display area, a sealant, a pressure detection sensor and a display area, wherein the sealant is arranged around the display area, the orthographic projection of the display area on the display panel is not overlapped with the orthographic projection of the sealant on the display panel, and the orthographic projection of the sealant on the display panel is not completely overlapped with the orthographic projection of the pressure detection sensor on the display panel.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
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| CN107742623B (en) * | 2017-11-15 | 2024-01-23 | 京东方科技集团股份有限公司 | Display substrate, organic light-emitting device, film evaporation detection method and display device |
| CN107797328A (en) * | 2017-11-30 | 2018-03-13 | 武汉天马微电子有限公司 | Display panel and display device |
| CN108882586B (en) * | 2018-07-13 | 2020-06-05 | Oppo（重庆）智能科技有限公司 | Method for manufacturing housing assembly |
| CN110673402A (en) * | 2019-09-16 | 2020-01-10 | 深圳市华星光电技术有限公司 | Display panel and display device |
| WO2021226744A1 (en) * | 2020-05-09 | 2021-11-18 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus and manufacturing method therefor |
| CN113741717B (en) * | 2020-05-29 | 2024-06-18 | 华为技术有限公司 | Touch component and terminal equipment |
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| US8570297B2 (en) * | 2009-12-14 | 2013-10-29 | Synaptics Incorporated | System and method for measuring individual force in multi-object sensing |
| CN102819330B (en) * | 2011-06-07 | 2016-07-06 | 索尼爱立信移动通讯有限公司 | Electronic equipment, pressure detection method and pressure-detecting device |
| CN203039743U (en) * | 2012-11-01 | 2013-07-03 | 广东欧珀移动通信有限公司 | Touch screen mobile phone |
| CN105913770A (en) * | 2015-11-10 | 2016-08-31 | 深圳市联建光电股份有限公司 | Fixing bottom case of LED display screen module |
| CN105470264A (en) * | 2015-12-08 | 2016-04-06 | 上海中航光电子有限公司 | Array substrate and display panel |
| CN105514134B (en) * | 2016-01-04 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN205334901U (en) * | 2016-01-25 | 2016-06-22 | 成都京东方光电科技有限公司 | Dysmorphism display panel and display device |
| CN105788462B (en) * | 2016-05-13 | 2019-02-26 | 京东方科技集团股份有限公司 | A kind of abnormity display screen |
| CN106354301A (en) * | 2016-08-19 | 2017-01-25 | 广东欧珀移动通信有限公司 | Preparing methods of mobile terminal, touch screen and cover plate of touch screen |
| CN106527580B (en) * | 2016-09-28 | 2020-08-04 | 北京小米移动软件有限公司 | Electronic device and display method |
| CN106856204B (en) * | 2016-12-28 | 2019-12-03 | 上海天马有机发光显示技术有限公司 | A kind of OLED display panel, display device |
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