CN108153075B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN108153075B
CN108153075B CN201810008504.6A CN201810008504A CN108153075B CN 108153075 B CN108153075 B CN 108153075B CN 201810008504 A CN201810008504 A CN 201810008504A CN 108153075 B CN108153075 B CN 108153075B
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Prior art keywords
display area
display
display panel
connecting bridge
connecting bridges
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CN108153075A (en
Inventor
陈娜森
方丽婷
陈玉成
宋琼
吴玲
沈柏平
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (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, relates to the technical field of display, and can reduce the space occupation of a non-display area on the periphery of the display panel, so that the narrow frame design is facilitated, and meanwhile, the sensitivity of a pressure induction sensor cannot be reduced. The display panel includes: a substrate including a display area and a non-display area surrounding the display area; the thin film transistor array layer is positioned on the substrate and comprises an active layer and a metal layer; the display device comprises at least one pressure sensing sensor, wherein any pressure sensing sensor comprises four connecting bridges which are sequentially connected end to end, at least one connecting bridge is positioned in the display area, and other connecting bridges are positioned in the non-display area; the at least one connecting bridge is arranged in the same layer as the active layer or the metal layer.

Description

Display panel and display device
[ 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 ]
Along with the development of touch display technology, besides the traditional touch technology capable of detecting a touch position, a pressure touch technology capable of detecting the magnitude of touch pressing pressure appears, more convenient man-machine interaction can be realized through pressure touch, and a pressure induction sensor is a necessary element for realizing pressure touch. The pressure sensor is integrated on the display panel, a connecting wire is arranged between the pressure sensor and the driving chip, and the driving chip acquires a signal output by the pressure sensor through the connecting wire, so that pressure touch detection is performed.
Generally, the middle area of the display panel is a display area, and when pressure acts on the middle area of the display panel, the strain of the peripheral area of the display panel is the largest, so that, at present, the pressure sensing sensor is generally arranged in a non-display area around the display panel, and the non-display area is generally provided with a driving circuit and various signal lines, so that the space occupation of the non-display area is large, which is not beneficial to narrow frame design; on the other hand, if the area of the pressure-sensitive sensor is reduced in order to reduce the space occupation of the pressure-sensitive sensor, the sensitivity of the pressure-sensitive sensor is reduced.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, which can reduce the space occupation of the non-display area around the display panel, thereby facilitating the narrow bezel design without reducing the sensitivity of the pressure-sensitive sensor.
In one aspect, an embodiment of the present invention provides a display panel, including:
a substrate including a display area and a non-display area surrounding the display area;
the thin film transistor array layer is positioned on the substrate and comprises an active layer and a metal layer;
the display device comprises at least one pressure sensing sensor, wherein any pressure sensing sensor comprises four connecting bridges which are sequentially connected end to end, at least one connecting bridge is positioned in the display area, and other connecting bridges are positioned in the non-display area;
the at least one connecting bridge is arranged in the same layer as the active layer or the metal layer.
On the other hand, the embodiment of the invention also provides a display device, which comprises the display panel.
According to the display panel and the display device, part of the connecting bridges in the pressure sensing sensors are arranged in the display area, and the other part of the connecting bridges are arranged in the non-display area, so that on one hand, the pressure sensing sensors are still positioned on the periphery of the display panel, and therefore large strain can be sensed, and the sensitivity of the pressure sensing sensors cannot be reduced; on the other hand, as part of the connecting bridge is arranged in the display area, the occupied area of the pressure sensing sensor in the non-display area is reduced, and the realization of a narrow frame is facilitated.
[ 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 inventive labor.
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a portion of the area of FIG. 1;
FIG. 3 is a schematic cross-sectional view along AA' of FIG. 2;
FIG. 4 is another enlarged schematic view of a portion of the area of FIG. 1;
FIG. 5 is a schematic cross-sectional view along direction BB' in FIG. 4;
FIG. 6 is an enlarged view of a portion of another display panel according to an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of the display area of FIG. 6;
FIG. 8 is an enlarged view of a portion of the display area of another display panel in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram of the structure of the connecting bridge and the sub-pixel in FIG. 8;
FIG. 10 is a schematic view of another cross-sectional structure along direction AA' in FIG. 2;
FIG. 11 is a schematic view of another cross-sectional structure along direction AA' in FIG. 2;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the 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.
As shown in fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a display panel in an embodiment of the present invention, fig. 2 is an enlarged schematic view of a partial region in fig. 1, and fig. 3 is a schematic structural diagram of a cross section along AA' in fig. 2, an embodiment of the present invention provides a display panel, including: a substrate 1, the substrate 1 including a display region 01 and a non-display region 02 surrounding the display region 01, the display region 01 being a region where a display function is realized and a screen can be displayed, pixels for realizing the display function being provided in the display region 01, the non-display region 02 being located around the display region 01, no screen being displayed in the region and no pixels for realizing the display function being provided, the non-display region 02 being provided with elements such as a peripheral circuit, a signal line, a driver circuit, or a driver chip IC; the thin film transistor array layer 2 is located on the substrate 1, the thin film transistor array layer 2 includes an active layer 21 and a metal layer, for example, the metal layer may be a gate metal layer or a source drain metal layer, the gate metal layer includes a gate 22, and the source drain metal layer includes a source 23 and a drain 24; at least one pressure-sensitive sensor 3, wherein any one of the pressure-sensitive sensors 3 comprises four connecting bridges connected end to end in sequence, for example, a first connecting bridge R1, a second connecting bridge R2, a third connecting bridge R3 and a fourth connecting bridge R4 connected end to end in sequence, at least one connecting bridge is located in the display area 01, and the other connecting bridges are located in the non-display area 02; at least one connecting bridge is arranged in the same layer as the active layer 21 or the metal layer. It should be noted that the display panel may be a liquid crystal display panel or an organic light emitting display panel, and the liquid crystal display panel includes an array substrate, a color filter substrate, and a liquid crystal layer located between the array substrate and the color filter substrate, and if the display panel is a liquid crystal display panel, the array substrate includes the substrate 1.
Specifically, the active layer 21, the gate electrode 22, the source electrode 23, and the drain electrode 24 constitute a thin film transistor for realizing control of pixels in the display region. The pressure-sensitive sensor 3 is a wheatstone bridge type pressure sensor, the pressure-sensitive sensor 3 comprises a first input end IN1, a second input end IN2, a first output end OUT1 and a second output end OUT2, a first connecting bridge R1 is connected IN series between the first input end IN1 and the first output end OUT1, a second connecting bridge R2 is connected IN series between the first output end OUT1 and the second input end IN2, a third connecting bridge R3 is connected IN series between the second input end IN2 and the second output end OUT2, and a fourth connecting bridge R4 is connected IN series between the second output end OUT2 and the first input end IN 1. IN the operating state of the pressure-sensitive sensor 3, the first input terminal IN1 and the second input terminal IN2 input bias voltages, for example, the first input terminal IN1 inputs a pulse signal, the second input terminal IN2 inputs a fixed potential voltage, for example, a ground voltage, a bias voltage having a voltage difference is formed between the pulse signal and the fixed potential voltage, and the first output terminal OUT1 and the second output terminal OUT2 output voltages obtained from the bias voltages. When the display panel is not subjected to compressive stress perpendicular to the plane of the display panel, and the ratio of the resistances of the first connecting bridge R1 and the second connecting bridge R2 is equal to the ratio of the resistances of the fourth connecting bridge R4 and the third connecting bridge R3, the bridge reaches an equilibrium state, and the voltage value at the first output end OUT1 is equal to the voltage value at the second output end OUT 2; when the display panel is subjected to a compressive stress perpendicular to the plane of the display panel, the four resistors deform to cause the resistance values of the resistors to change, so that the bridge breaks the equilibrium state, that is, the ratio of the resistance values of the first connecting bridge R1 to the second connecting bridge R2 is not equal to the ratio of the resistance values of the fourth connecting bridge R4 to the resistance value of the third connecting bridge R3, the voltage value at the first output end OUT1 is not equal to the voltage value at the second output end OUT2, the difference between the voltage value at the first output end OUT1 and the voltage value at the second output end OUT2 has a corresponding relationship with the pressure value applied to the display panel, and in the pressure detection process, the corresponding pressure value can be obtained by obtaining the voltage value at the first output end OUT1 and the voltage value at the second output end OUT 2.
It should be noted that fig. 1 and fig. 2 only illustrate that two adjacent connecting bridges R1 and R2 are located in the non-display area 02, and two adjacent connecting bridges R3 and R4 are located in the display area 01, however, the embodiment of the present invention is not limited to which connecting bridges are located in the non-display area and which connecting bridges are located in the display area, for example, in other realizable manners, one connecting bridge may be located in the non-display area, and the other three connecting bridges may be located in the display area; or three connecting bridges are arranged in the non-display area, and other three connecting bridges are arranged in the display area; or the non-display area is provided with the first connecting bridge R1 and the third connecting bridge R3 which are not adjacent, and the display area is provided with the other second connecting bridge R2 and the fourth connecting bridge R4 which are not adjacent. In the structure shown in fig. 1 and 2, two adjacent connecting bridges R1 and R2 are provided in the non-display area 02, and in addition, two adjacent connecting bridges R3 and R4 are located in the display area 01, which makes it more convenient to route connecting lines between the connecting bridges.
In the display panel in the embodiment of the invention, part of the connecting bridge in the pressure sensing sensor is arranged in the display area, and the other part of the connecting bridge is arranged in the non-display area; on the other hand, as part of the connecting bridge is arranged in the display area, the occupied area of the pressure sensing sensor in the non-display area is reduced, and the realization of a narrow frame is facilitated. It can be understood that, the middle area of the display panel has a smaller supporting force, the display panel may be recessed in the middle area, but is supported at the periphery of the display panel, and therefore, the pressure-sensitive sensor located in the peripheral area may generate a larger deformation under the action of the downward pressure and the upward supporting force, that is, the stress generated by the pressure on the display panel at the position between the edge area of the display panel and the middle display area of the display panel is larger, and the pressure-sensitive sensor is disposed at the boundary position between the display area and the non-display area, so as to improve the detection sensitivity and accuracy of the pressure-sensitive sensor. In addition, the connecting bridge and the active layer or the metal layer in the thin film transistor array layer are arranged on the same layer, so that the manufacturing is simplified, a new film layer is not added, and the thinning of the display panel is facilitated.
Alternatively, as shown in fig. 4 and fig. 5, fig. 4 is another enlarged schematic view of a partial region in fig. 1, fig. 5 is a schematic view of a cross-sectional structure in a direction BB' of fig. 4, and the display panel further includes: a black matrix 4; the orthographic projection of the connecting bridge (for example, the fourth connecting bridge R4) located in the display area on the display panel is covered by the orthographic projection of the black matrix 4 on the display panel.
Specifically, the display panel may be a liquid crystal display panel, the liquid crystal display panel includes an array substrate 100 and a color filter substrate 200, the array substrate 100 includes the substrate 1, a thin film transistor array layer 2, a common electrode 5 and a pixel electrode 6, the thin film transistor array layer 2 further includes a plurality of gate lines 25 and a plurality of data lines 26, the plurality of gate lines 25 and the plurality of data lines 26 cross to define a plurality of sub-pixel units, the gate lines 25 are located on a gate metal layer, in this embodiment, the gate electrodes 22 are portions protruding from the gate lines 25, that is, the gate electrodes 22 are connected to the corresponding gate lines 25, the data lines 26 are located on a source-drain metal layer, the source electrodes 23 are portions protruding from the data lines 26, the pixel electrode 6 corresponds to each sub-pixel unit, each sub-pixel unit further corresponds to one of the thin film transistor, the source electrodes 23 of the thin film transistors are connected to the corresponding data lines 26, the color filter substrate 200 includes, the black matrix 4 is used for shielding the gate line 25, the data line 26 and the thin film transistor, and the liquid crystal 7 is disposed between the array substrate 100 and the color film substrate 200. In the working process of the display panel, the gate lines 25 sequentially provide scanning signals to enable the thin film transistors to be conducted line by line under the control of the gate lines, the data lines 26 provide data signals, the data signals are transmitted to the pixel electrodes 6 of the corresponding sub-pixel units through the conducted thin film transistors, so that the pixel electrodes 6 are charged, the common electrodes 5 have common voltages, and an electric field is formed between the pixel electrodes 6 and the common electrodes 5 to drive the liquid crystal 7 to deflect, so that the display function is realized. The color filter substrate 200 includes a substrate 1 'and a black matrix 4, the black matrix 4 is located on a side of the substrate 1' close to the array substrate 100, and the color filter substrate 200 generally further includes color resin layers, not shown in the figure, for filtering color so that the corresponding sub-pixels can emit light of corresponding colors, and a liquid crystal alignment layer for making the liquid crystal have a specific initial alignment direction. The connection bridge located in the display area, for example, the fourth connection bridge R4 shown in fig. 4 and 5 is shielded by the black matrix 4 to avoid the influence of the fourth connection bridge R4 on normal display.
Further, the connecting bridge is on the same layer as the active layer in the thin film transistor array layer, and an orthographic projection of the connecting bridge located in the display area on the display panel is overlapped with an orthographic projection of a metal layer in the thin film transistor array layer on the display panel, or the connecting bridge is overlapped with an orthographic projection of a data line or a gate line in the thin film transistor array layer on the display panel. Through will connecting the bridge and need be by the range upon range of setting of other retes that black matrix sheltered from, further reduce the area occupied of connecting the bridge in display panel to when guaranteeing to reduce display panel's frame, be favorable to realizing display panel's big aperture ratio.
Alternatively, as shown in fig. 6, fig. 6 is an enlarged schematic view of another display panel in a partial area according to an embodiment of the present invention, and the connecting bridge located in the display area 01 is L-shaped.
Specifically, the third connecting bridge R3 and the fourth connecting bridge R4 of the same pressure-sensitive sensor are located in the display area 01, and the third connecting bridge R3 and the fourth connecting bridge R4 are each L-shaped and L-shaped connecting bridges, and it can be understood that L is shaped such that the connecting bridges exhibit an outer shape in a direction perpendicular to the display panel in the viewing direction, or the connecting bridges have a projection L-shaped in a direction perpendicular to the display panel, so that the connecting bridges have a longer extension length in both directions, and the longer the connecting bridges extend in a certain direction, the larger the amount of deformation of the connecting bridges in the direction when a stress is applied to the display panel, and thus, the larger the amount of deformation of the connecting bridges in both directions in fig. 6, as compared with the elongated connecting bridges (the third connecting bridge R3 and the fourth connecting bridge R4) having a longer extension length in only one direction as shown in fig. 2, the connecting bridges L in the display area 01 can generate more accurately corresponding stress, and thus more accurately detect the pressure-sensitive sensor.
For example, in fig. 6, the third connecting bridge R3 in the display region 01 includes a portion extending in the first direction h1 and a portion extending in the second direction h 2. Wherein the first direction h1 intersects along the second direction h 2. When the direction of the pressure (or stress) is the second direction h2, the stress has no component force in the first direction h1, and the portion of the third connecting bridge R3 extending in the first direction h1 is insensitive to the stress. And since the third connecting bridge R3 further includes and extends along the second direction h2, the stress has a component in the second direction h2 regardless of whether the first direction h1 is perpendicular to the second direction h 2. Thus, the third connecting bridge R3 can still accurately detect the pressure (or stress) change at its position.
It should be noted that, although fig. 6 illustrates that the first connecting bridge R1 and the second connecting bridge R2 located in the non-display area 02 are in a long strip shape, and the extending directions of the first connecting bridge R1 and the second connecting bridge R2 are both at an angle of 45 ° to the second direction h2, the above specific structure is only an example, and the structure of the connecting bridge located in the non-display area 02 is not limited in the embodiment of the present invention, for example, in other realizable manners, the connecting bridges located in the non-display area may have other shapes, and may also have other arrangements.
Alternatively, as shown in fig. 2, 4, and 5, any two connecting bridges are located in the display area 01, and the other two connecting bridges are located in the non-display area 02; the four connecting bridges are all in a strip shape; the display region 01 includes a plurality of gate lines 25 extending in a first direction h1 and a plurality of data lines 26 extending in a second direction h 2; the directions of the long sides of the two connecting bridges located in the display area 01 are both the first direction h1 or the second direction h2, the directions of the long sides of the two connecting bridges located in the non-display area 02 are perpendicular to each other, and the included angle between the long side of one of the two connecting bridges located in the non-display area 02 and the second direction h2 is 45 °.
Specifically, for example, in the present embodiment, the third connecting bridge R3 and the fourth connecting bridge R4 in the pressure-sensitive sensor are located in the display area 01, the first connecting bridge R1 and the second connecting bridge R2 are located in the non-display area 02, and the long sides of the third connecting bridge R3 and the fourth connecting bridge R4 are both in the first direction h1 or the second direction h2, while the first direction h1 is the extending direction of the gate line 25, and the second direction h2 is the extending direction of the data line 26, so that in the display area 01, the black matrix 4 is also a long and continuous shielding area in the first direction h1 and the second direction h2, and therefore, when the third connecting bridge R3 and the fourth connecting bridge R4 are in a long strip shape, the black matrix 4 can be disposed between adjacent sub-pixels, and can be shielded by the black matrix 4 without affecting normal display. In addition, the first and second connecting bridges R1 and R2 located in the non-display area 02 may be formed in any shape since they do not relate to display, and in order to be able to largely sense deformation caused by stress in both the first and second directions h1 and h2, the first and second connecting bridges R1 and R2 may be formed at an angle of 45 ° to the second direction h 2.
Alternatively, as shown in fig. 6 and 7, fig. 7 is a partially enlarged schematic view of the display area in fig. 6, any two connection bridges in the pressure-sensitive sensors are located in the display area 01, the other two connection bridges are located in the non-display area 02, the two connection bridges located in the display area 01 are L-shaped, the two connection bridges located in the non-display area 02 are long-strip-shaped, the display area 01 includes a plurality of gate lines 25 extending along a first direction h1 and a plurality of data lines 26 extending along a second direction h2, long sides of the two connection bridges located in the display area 01 are in the first direction h1 or the second direction h2, the long sides of the two connection bridges located in the non-display area 02 are in the direction perpendicular to each other, and an angle between the long side of one of the two connection bridges located in the non-display area 02 and the second direction h2 is 45 °.
In particular, for example, in the present embodiment, the third and fourth connecting bridges R and R are located in the display area 01, the first and second connecting bridges R and R are located in the non-display area 02, both the third and fourth connecting bridges R and R are shaped, both the first and second connecting bridges R and R are elongated, both the long sides of the third and fourth connecting bridges R and R are oriented in the first or second direction h, and the first direction h is the extending direction of the gate lines 25, and the second direction h is the extending direction of the data lines 26, so that, in the display area 01, the black matrix 4 is also provided with a longer and continuous shielding area in the first and second directions h, so that, when the third and fourth connecting bridges R are shaped, just between adjacent sub-pixels, the portion of the connecting bridge extending in the first direction h is located between two adjacent sub-pixels in the first direction h, so that the portion of the connecting bridge extending in the first direction h is located between two adjacent sub-pixels in the second direction h, so that the second bridge extending direction h, the portion of the connecting bridge R and the second connecting bridge R can be more accurately sensed by the sensing stress, so that the connecting bridge R and the connecting bridge extending direction h can be located between the second connecting bridge R, so that the two adjacent sub-pixels, the connecting bridge R can be sensed by the second connecting bridge can be located between the adjacent sub-pixels, and the connecting bridge can be more accurately sensed by the sensing stress, and the sensor, so that the connecting bridge can be detected when the connecting bridge can be located between the second connecting bridge can be detected, the two connecting bridge R, the connecting bridge can be more accurately sensed by the sensor, the sensor can be located in the second connecting bridge extending direction h, and the second connecting bridge R, and the display area, and the display area, the display area can be more accurately located in the display area, and the display.
Optionally, the material of the four connecting bridges is polysilicon or silicon nitride. The pressure induction sensor made of polysilicon or silicon nitride material has higher sensitivity.
Alternatively, as shown in fig. 8 and 9, fig. 8 is an enlarged schematic view of a display area of another display panel part in an embodiment of the present invention, fig. 9 is a schematic view of a connecting bridge and a sub-pixel in fig. 8, and the connecting bridge located in the display area is in a zigzag shape. For example, the connecting bridge R4 located in the display area is in a zigzag shape.
Alternatively, as shown in fig. 8 and 9, the display region includes a plurality of sub-pixels 8 distributed in an array, the above-mentioned zigzag shape includes a plurality of end-to-end sub-segments R0, any two adjacent sub-segments R0 extend along different directions, and the extending direction of each sub-segment R0 is the same as the extending direction of the edge of the adjacent sub-pixel 8.
Specifically, the sub-segment R0 is a long-strip structure with glares in the same direction, in this embodiment, the zigzag shape includes four sub-segments R0 connected end to end, and each sub-segment R0 extends along the direction of the edge of one sub-pixel 8 adjacent to the sub-segment R0, that is, each sub-segment R0 is located between at least two adjacent sub-pixels 8 and extends along the gap between two adjacent sub-pixels 8, and can be shielded by the black matrix 4 without affecting the normal display. It should be noted that fig. 8 and 9 only illustrate a zigzag structure formed by four sub-segments R0, and each sub-segment R0 is connected to the next sub-segment R0 when extending to the next row or the next column of sub-pixels 8.
In addition, because the shape of connecting the bridge and being broken line shape, do not increase the display panel frame, when not increasing the display area that the bridge occupies, can enlarge pressure-sensitive sensor's detection scope, improve pressure-sensitive sensor's detection accuracy. Moreover, the connection bridge is designed to be of a fold line shape, so that the bending resistance and the compression resistance of the connection bridge are better facilitated, the connection bridge is prevented from being broken, and the reliability of the pressure sensing sensor is improved. Especially for flexible display panels, the requirement for the bending resistance of the device is higher. The connecting bridge is designed to be in a fold line shape, and when the flexible display panel is excessively bent, local overlarge pressure can be relieved through the fold line structure.
Optionally, the four connecting bridges are P-type doped connecting bridges; or, the four connecting bridges are N-type doped connecting bridges; or, one of the connecting bridges which are adjacently connected is a P-type doped connecting bridge, and the other connecting bridge is an N-type doped connecting bridge.
Particularly, the sensitivity of the pressure sensing sensor can be improved through the connecting bridge formed by ion doping, and the sensitivity of each connecting bridge can be controlled through doping concentration, so that the pressure sensing sensor is more flexible and controllable.
Alternatively, as shown in fig. 10, fig. 10 is another schematic cross-sectional structure view along direction AA' in fig. 2, where at least one connection bridge is disposed on the same layer as the metal layer, and the metal layer is a gate metal layer or a source-drain metal layer, and fig. 10 only shows a structure where the metal layer is a gate metal layer, that is, the connection bridge located in the display region, for example, the fourth connection bridge R4, is disposed on the same layer as the metal layer, and the metal layer includes the gate 22. Since the gate electrode 22, the source electrode 23 and the drain electrode 24 are necessarily formed in the display panel, when the connection bridge is also made of a metal material, the connection bridge may be formed through the same patterning process while the gate electrode 22 or the source electrode 23 and the drain electrode 24 are formed, thereby saving processes. It should be noted that, in other implementation embodiments, the display panel may further include other metal layers, and when the connection bridge is made of a metal material, the connection bridge may also be disposed on the same layer as the other metal layers, and is not limited to the gate metal layer or the source/drain metal layer.
It should be noted that, the above embodiments only specifically describe the specific structure of the display panel when the display panel is a liquid crystal display panel, but the embodiments of the present invention are not limited to the specific type and structure of the display panel, for example, the display panel may also be an Organic light Emitting display panel, for example, as shown in fig. 11, fig. 11 is another schematic cross-sectional structure in the direction of AA' in fig. 2, the Organic light Emitting display panel includes the above thin film transistor array layer 2, the array substrate includes a plurality of pixel circuits, the Organic light Emitting display panel further includes a plurality of Organic light Emitting diodes 9(Organic L light-Emitting Diode, O L) disposed on the array substrate, each Organic light Emitting Diode 9 includes an anode layer 91, a light Emitting layer 92 and a cathode layer 93 disposed in sequence, the pixel circuits include the above thin film transistors, the pixel circuits further include a storage capacitor (not shown in the figure), the anode layer 91 of the Organic light Emitting Diode 9 is connected to the drain 24 of the corresponding thin film transistor through a via hole, the plurality of light Emitting diodes include a light Emitting Diode for Emitting red light, a light Emitting Diode Emitting and a light Emitting Diode for green light Emitting, and the Organic light Emitting Diode packaging structure of the Organic light Emitting Diode 9 are also illustrated in the same as another exemplary thin film transistor structure, and the Organic light Emitting Diode packaging structure is not illustrated in the same as illustrated in the Organic light Emitting Diode packaging structure of the Organic light Emitting Diode packaging structure.
As shown in fig. 12, fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the embodiment of the present invention further provides a display device, which is the display panel 300 described above.
The specific structure and principle of the display panel 300 are the same as those of the above embodiments, and are not described herein again. The display device may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television.
In the display device in the embodiment of the invention, part of the connecting bridge in the pressure sensing sensor is arranged in the display area, and the other part of the connecting bridge is arranged in the non-display area; on the other hand, as part of the connecting bridge is arranged in the display area, the occupied area of the pressure sensing sensor in the non-display area is reduced, and the realization of a narrow frame is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A display panel, comprising:
a substrate including a display area and a non-display area surrounding the display area;
the thin film transistor array layer is positioned on the substrate and comprises an active layer and a metal layer;
the display device comprises at least one pressure sensing sensor, wherein any pressure sensing sensor comprises four connecting bridges which are sequentially connected end to end, at least one connecting bridge is positioned in the display area, and other connecting bridges are positioned in the non-display area;
the at least one connecting bridge is arranged on the same layer as the active layer or the metal layer;
the display area comprises a plurality of grid lines extending along a first direction and a plurality of data lines extending along a second direction, and a plurality of sub-pixels are defined by the intersection of the plurality of grid lines and the plurality of data lines;
the connecting bridge located in the display area is in a strip shape, the direction of the long edge of the strip shape is the first direction, and the connecting bridge located in the display area is arranged between the adjacent sub-pixels in the second direction;
alternatively, the first and second electrodes may be,
the connecting bridge located in the display region is L-shaped, the direction of the long side of the L-shaped is the first direction or the second direction, the connecting bridge located in the display region is arranged between the adjacent sub-pixels, the part of the L-shaped extending along the first direction is located between the two adjacent sub-pixels in the second direction, and the part of the L-shaped extending along the second direction is located between the two adjacent sub-pixels in the first direction;
alternatively, the first and second electrodes may be,
the shape of the connecting bridge positioned in the display area is a fold line shape, the fold line shape comprises a plurality of sub-segments which are connected end to end, any two adjacent sub-segments extend along different directions, and the extending direction of each sub-segment is the same as the extending direction of the edge of the adjacent sub-pixel; each sub-segment is located between at least two adjacent sub-pixels.
2. The display panel according to claim 1, further comprising:
a black matrix;
and the orthographic projection of the connecting bridge positioned in the display area on the plane of the display panel is covered by the orthographic projection of the black matrix on the plane of the display panel.
3. The display panel according to claim 2,
any two of the connecting bridges are positioned in the display area, and the other two connecting bridges are positioned in the non-display area;
the four connecting bridges are all in a strip shape;
the directions of the long edges of the two connecting bridges positioned in the non-display area are mutually vertical, and the included angle between the long edge of one of the two connecting bridges positioned in the non-display area and the second direction is 45 degrees.
4. The display panel according to claim 2,
any two of the connecting bridges are located in the display area, and the other two of the connecting bridges are located in the non-display area,
the two connecting bridges positioned in the display area are L-shaped, and the two connecting bridges positioned in the non-display area are long-strip-shaped;
the directions of the long edges of the two connecting bridges positioned in the non-display area are mutually vertical, and the included angle between the long edge of one of the two connecting bridges positioned in the non-display area and the second direction is 45 degrees.
5. The display panel according to claim 1,
the four connecting bridges are made of polysilicon or silicon nitride.
6. The display panel according to claim 1,
the four connecting bridges are P-type doped connecting bridges;
or the like, or, alternatively,
the four connecting bridges are N-type doped connecting bridges;
or the like, or, alternatively,
among the connecting bridges which are connected adjacently, one connecting bridge is a P-type doped connecting bridge, and the other connecting bridge is an N-type doped connecting bridge.
7. The display panel according to claim 1,
the metal layer is a grid metal layer or a source drain metal layer.
8. A display device comprising the display panel according to any one of claims 1 to 7.
CN201810008504.6A 2018-01-04 2018-01-04 Display panel and display device Active CN108153075B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106227386A (en) * 2016-07-29 2016-12-14 京东方科技集团股份有限公司 A kind of contact panel and preparation method thereof, display device
CN107272961A (en) * 2017-06-30 2017-10-20 厦门天马微电子有限公司 A kind of display panel and display device
CN107368218A (en) * 2017-06-30 2017-11-21 厦门天马微电子有限公司 A kind of array base palte, touch-control display panel and its display device
CN107368222A (en) * 2017-07-26 2017-11-21 厦门天马微电子有限公司 A kind of array base palte, touch-control display panel and its display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106227386A (en) * 2016-07-29 2016-12-14 京东方科技集团股份有限公司 A kind of contact panel and preparation method thereof, display device
CN107272961A (en) * 2017-06-30 2017-10-20 厦门天马微电子有限公司 A kind of display panel and display device
CN107368218A (en) * 2017-06-30 2017-11-21 厦门天马微电子有限公司 A kind of array base palte, touch-control display panel and its display device
CN107368222A (en) * 2017-07-26 2017-11-21 厦门天马微电子有限公司 A kind of array base palte, touch-control display panel and its display device

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