CN110888269A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN110888269A
CN110888269A CN201911198988.6A CN201911198988A CN110888269A CN 110888269 A CN110888269 A CN 110888269A CN 201911198988 A CN201911198988 A CN 201911198988A CN 110888269 A CN110888269 A CN 110888269A
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CN
China
Prior art keywords
line
display panel
thin film
substrate
film transistor
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Granted
Application number
CN201911198988.6A
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Chinese (zh)
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CN110888269B (en
Inventor
潘陟成
王天赐
金慧俊
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Shanghai AVIC Optoelectronics Co Ltd
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Shanghai AVIC Optoelectronics Co Ltd
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Priority to CN201911198988.6A priority Critical patent/CN110888269B/en
Publication of CN110888269A publication Critical patent/CN110888269A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13394Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133345Insulating layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136259Repairing; Defects
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13396Spacers having different sizes
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136259Repairing; Defects
    • G02F1/136263Line defects

Abstract

The invention discloses a display panel and a display device, which relate to the technical field of display and comprise: the array substrate and the color film substrate are oppositely arranged, and a plurality of support columns are arranged between the array substrate and the color film substrate; the array substrate comprises a substrate base plate, a plurality of data wires, a plurality of repairing wires and a plurality of pixel units, wherein the data wires and the repairing wires are arranged on the substrate base plate; the sub-pixel includes a thin film transistor; in the direction vertical to the array substrate, the supporting columns and the thin film transistors are at least partially overlapped; in the direction vertical to the array substrate, the film thickness of the repair line is d1, and the total film thickness of the source electrode of the thin film transistor and the semiconductor part of the thin film transistor is d 2; wherein d1 is not more than d2, d1 is more than 0, and d2 is more than 0. The invention effectively reduces the difficulty of repairing the data line in the display panel and does not influence the supporting performance of the supporting column in the display panel.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Liquid crystal displays have advantages of high image quality, power saving, thin body, and wide application range, and are widely used in various consumer electronics products such as mobile phones, televisions, digital cameras, notebook computers, and desktop computers, and become the mainstream of display devices.
The conventional array substrate structure generally includes: the pixel structure comprises a plurality of vertical data lines which are parallel to each other and are sequentially arranged, a plurality of horizontal scanning lines which are parallel to each other and are sequentially arranged, a plurality of thin film transistors which are electrically connected with the data lines and the scanning lines and are arranged in an array mode, and pixel electrodes which are electrically connected with the thin film transistors.
The scanning lines provide scanning signals to the thin film transistors, and the data lines provide data signals to the thin film transistors to control the liquid crystal display panel to display pictures. In the production process of the array substrate, due to the complex production process and the influence of the production process or the factory environment, the broken data lines may occur, which may cause the generation of black lines in the display image and seriously affect the image display quality, and at this time, the broken data lines need to be repaired. For the existing array substrate structure, after the data line is broken, long-line repair can only be carried out on the periphery, the repair process is complex, the repair effect is poor, and the success rate is low.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which effectively reduce the difficulty of repairing a data line in the display panel, improve the efficiency of repairing the data line, and simultaneously do not affect the support performance of a support pillar in the display panel.
In a first aspect, the present invention provides a display panel comprising: the array substrate and the color film substrate are oppositely arranged, and a plurality of support columns are arranged between the array substrate and the color film substrate; the array substrate comprises a substrate base plate, a plurality of data wires, a plurality of repairing wires and a plurality of pixel units, wherein the data wires and the repairing wires are arranged on the substrate base plate, the pixel units are arranged in an array along a first direction and a second direction, each pixel unit comprises at least two sub-pixels arranged along the first direction, and the first direction is intersected with the second direction; the data lines and the repairing lines extend along the second direction, and at least one data line and at least one repairing line are positioned between two adjacent sub-pixels arranged along the first direction; the sub-pixel comprises a thin film transistor, and a source electrode of the thin film transistor is electrically connected with a data line; the data line and the source electrode and the drain electrode of the thin film transistor are arranged on the same layer, and the semiconductor part of the thin film transistor is positioned on one side of the source electrode of the thin film transistor, which is close to the substrate; in the direction vertical to the array substrate, the supporting columns and the thin film transistors are at least partially overlapped; in the direction vertical to the array substrate, the film thickness of the repair line is d1, and the total film thickness of the source electrode of the thin film transistor and the semiconductor part of the thin film transistor is d 2; wherein d1 is not more than d2, d1 is more than 0, and d2 is more than 0.
In a second aspect, the present invention provides a display device comprising the display panel provided by the present invention.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
the display panel provided by the invention comprises an array substrate and a color film substrate which are oppositely arranged, wherein a plurality of support columns are arranged between the array substrate and the color film substrate, the array substrate comprises a plurality of data lines and a plurality of repairing lines which are arranged on a substrate, the data lines and the repairing lines extend along the second direction, and after the data lines are broken, the data lines can be repaired through the repairing lines without long-line repairing at the periphery of the display panel, so that the difficulty in repairing the data lines in the display panel is effectively reduced, and the efficiency of repairing the data lines is improved. The sub-pixels comprise the thin film transistors, and in the direction perpendicular to the array substrate, the supporting columns and the thin film transistors are at least partially overlapped, so that the influence of the supporting columns on the aperture ratio of the sub-pixels is effectively reduced. The at least one data line and the at least one repair line are located between two adjacent sub-pixels arranged along the first direction, and the source electrode of the thin film transistor is electrically connected with the data line, namely the repair line is relatively close to the thin film transistor connected with the data line located between the two adjacent sub-pixels. The data line and the source electrode and the drain electrode of the thin film transistor are arranged on the same layer, and the semiconductor part of the thin film transistor is positioned on one side of the source electrode of the thin film transistor close to the substrate. When the film thickness of the repair line is larger than the total film thickness of the source electrode of the thin film transistor TFT and the semiconductor part of the thin film transistor, the box thickness between the color film substrate and the area where the repair line is located in the array substrate is smaller than the height of the support pillar, if the attachment of the color film substrate and the array substrate in the display panel is deviated or the display panel is influenced by external force to cause deviation between the color film substrate and the array substrate, the position of the support pillar is correspondingly deviated, and when the support pillar is deviated to the area where the repair line is located in the array substrate, the repair line can cause the support pillar to be in a skewed state to influence the support performance of the support pillar. Therefore, in the direction perpendicular to the array substrate, the film thickness of the repair line is smaller than or equal to the total film thickness of the source electrode of the thin film transistor and the semiconductor part of the thin film transistor, and the influence of the arrangement of the repair line on the supporting performance of the supporting column is effectively reduced.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic plan view of a display panel according to the present invention;
FIG. 2 is an enlarged view of portion A of the display panel of FIG. 1;
FIG. 3 is a cross-sectional view of the display panel of FIG. 2 taken along line E-E';
FIG. 4 is another cross-sectional view of the display panel of FIG. 2 taken along line E-E';
FIG. 5 is a schematic plane structure diagram of another display panel provided by the present invention;
FIG. 6 is an enlarged view of portion B of the display panel of FIG. 5;
FIG. 7 is a cross-sectional view of the display panel of FIG. 6 taken along line F-F';
FIG. 8 is a schematic plane structure diagram of another display panel provided by the present invention;
FIG. 9 is a schematic plan view of a display panel according to another embodiment of the present invention;
fig. 10 is a schematic plan view of a display device according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic plan view illustrating a display panel according to the present invention, fig. 2 is an enlarged view of a portion a of the display panel shown in fig. 1, fig. 3 is a cross-sectional view of the display panel shown in fig. 2 along a line E-E', and referring to fig. 1-3, the present embodiment provides a display panel including: the array substrate 10 and the color film substrate 20 are arranged oppositely, and a plurality of supporting columns 30 are arranged between the array substrate 10 and the color film substrate 20;
the array substrate 10 comprises a substrate 11, a plurality of data lines D arranged on the substrate 11, a plurality of repair lines 12, and a plurality of pixel units 40 arranged in an array along a first direction X and a second direction Y, wherein the pixel units 40 comprise at least two sub-pixels 41 arranged along the first direction X, and the first direction X intersects with the second direction Y;
the data line D and the repair line 12 both extend along the second direction Y, and at least one data line D and at least one repair line 12 are both located between two adjacent sub-pixels 41 arranged along the first direction X;
the sub-pixel 41 includes a thin film transistor TFT, a source electrode T1 of which is electrically connected to one data line D;
the data line D and the source T1 and the drain T2 of the thin film transistor TFT are disposed in the same layer, and the semiconductor portion T3 of the thin film transistor TFT is located on the side of the source T1 of the thin film transistor TFT close to the substrate 11;
in the direction perpendicular to the array substrate 11, the support posts 30 and the thin film transistors TFT at least partially overlap;
in the direction perpendicular to the array substrate 11, the film thickness of the repair line 12 is d1, and the total film thickness of the source T1 of the thin film transistor TFT and the semiconductor portion T3 of the thin film transistor TFT is d 2; wherein the content of the first and second substances,
d1≤d2,d1>0,d2>0。
specifically, with reference to fig. 1 to fig. 3, the display panel provided in this embodiment includes an array substrate 10 and a color filter substrate 20 that are oppositely disposed, a plurality of support pillars 30 are disposed between the array substrate 10 and the color filter substrate 20, and the box thickness between the array substrate 10 and the color filter substrate 20 is controlled by the heights of the support pillars 30 in the display panel. A liquid crystal layer is further disposed between the first and second substrates 100 and 200. The arrangement of the support columns 30 can improve the uniformity of the whole thickness of the display device, improve the tolerance of the display panel to liquid crystal fluctuation, and further improve the yield of the display panel.
The array substrate 10 includes a substrate 11 and a plurality of pixel units 40 arranged on the substrate 11 in an array along a first direction X and a second direction Y, where the pixel units 40 include at least two sub-pixels 41 arranged along the first direction X, and the first direction X intersects with the second direction Y.
It should be noted that fig. 1 exemplarily shows that the pixel unit 40 includes three sub-pixels 41 arranged along the first direction X, and in other embodiments of the present invention, the number of the sub-pixels 41 arranged along the first direction X in the pixel unit 40 may also be set to other values according to actual production needs, which is not described herein again.
The array substrate 10 further comprises a plurality of data lines D and a plurality of repairing lines 12 which are arranged on the substrate 11, the data lines D and the repairing lines 12 extend along the second direction Y, and after the data lines D are broken, the data lines D can be repaired through the repairing lines 12 without performing long line repairing on the periphery of the display panel, so that the difficulty of repairing the data lines D in the display panel is effectively reduced, and the efficiency of repairing the data lines D is improved. In a preferred embodiment, the data line D and the repair line 12 have the same extension track vertically projected on the substrate 11, and in some variations, the data line D and the repair line 12 may have different extension tracks vertically projected on the substrate 11.
The sub-pixel 41 comprises a thin film transistor TFT, and in the direction perpendicular to the array substrate 11, the supporting column 30 and the thin film transistor TFT are at least partially overlapped, which effectively reduces the influence of the supporting column 30 on the aperture ratio of the sub-pixel 41.
At least one data line D and at least one repair line 12 are located between two adjacent sub-pixels 41 arranged along the first direction X, and the source T1 of the thin film transistor TFT is electrically connected with one data line D, that is, the repair line 12 is closer to the thin film transistor TFT connected with the data line D located between the same two adjacent sub-pixels 41. The data line D is provided in the same layer as the source T1 and the drain T2 of the thin film transistor TFT, and the semiconductor portion T3 of the thin film transistor TFT is located on the side of the source T1 of the thin film transistor TFT closer to the substrate 11. In a direction perpendicular to the array substrate 11, when the film thickness of the repair line 12 is greater than the total film thickness of the source T1 of the thin film transistor TFT and the semiconductor portion T3 of the thin film transistor TFT, the box thickness between the color filter substrate 20 and the area where the repair line 12 is located in the array substrate 10 is smaller than the height of the support pillar 30, if the attachment of the color filter substrate 20 and the array substrate 10 in the display panel is deviated, or the display panel is influenced by an external force to cause deviation between the color filter substrate 20 and the array substrate 10, the position of the support pillar 30 is also deviated accordingly, and when the support pillar 30 is deviated to the area where the repair line 12 is located in the array substrate 10, the repair line 12 may cause a state of the support pillar 30, which affects the support performance of the support pillar 30. Therefore, in the direction perpendicular to the array substrate 11, the film thickness of the repair line 12 is equal to or less than the total film thickness of the source T1 of the thin film transistor TFT and the semiconductor portion T3 of the thin film transistor TFT, and the influence of the arrangement of the repair line 12 on the supporting performance of the supporting post 30 is effectively reduced.
With continued reference to fig. 1-3, optionally, the array substrate 10 further includes a first insulating layer 13, a second insulating layer 14, and a third insulating layer 15;
the first insulating layer 13 is located on a side of the semiconductor portion T4 of the thin film transistor TFT close to the base substrate 11, the second insulating layer 14 is located on a side of the data line D away from the base substrate 11, the repair line 12 is located on a side of the second insulating layer 14 away from the base substrate 11, and the third insulating layer 15 is located on a side of the repair line 12 away from the base substrate 11.
Specifically, in the array substrate 10, the first insulating layer 13 is located between the substrate 11 and the film layer where the semiconductor portion T4 is located, the data line D and the source T1 and the drain T2 of the thin film transistor TFT are disposed in the same layer, the film layer where the semiconductor portion T4 is located between the first insulating layer 13 and the film layer where the source T1 and the drain T2 of the thin film transistor TFT are located, the data line D, the source T1 and the drain T2 of the thin film transistor TFT are located between the film layer where the semiconductor portion T4 is located and the second insulating layer 14, and the repair line 12 is disposed between the second insulating layer 14 and the third insulating layer 15.
Fig. 4 is another cross-sectional view of the display panel shown in fig. 2 along the line E-E', referring to fig. 1, 2 and 4, and optionally, wherein the array substrate 10 further includes a first insulating layer 13, a second insulating layer 14 and a third insulating layer 15;
the first insulating layer 13 is located on the side of the repair line 12 close to the base substrate 11, the second insulating layer 14 is located on the side of the repair line 12 away from the base substrate 11, the semiconductor portion T4 of the thin film transistor TFT is located on the side of the second insulating layer 14 away from the base substrate 11, and the third insulating layer 15 is located on the side of the data line D away from the base substrate 11.
Specifically, in the array substrate 10, the repair line 12 is disposed between the first insulating layer 13 and the second insulating layer 14, the data line D and the source T1 and the drain T2 of the thin film transistor TFT are disposed in the same layer, the layer where the semiconductor portion T4 is located is disposed between the second insulating layer 14 and the layer where the source T1 and the drain T2 of the thin film transistor TFT are located, and the data line D, the source T1 and the drain T2 of the thin film transistor TFT are disposed between the layer where the semiconductor portion T4 is located and the third insulating layer 15.
It should be noted that fig. 3 exemplarily shows that the repair line 12 may be disposed between the second insulating layer 14 and the third insulating layer 15, fig. 4 exemplarily shows that the repair line 12 may be disposed between the first insulating layer 13 and the second insulating layer 14, and in other embodiments of the present invention, the repair line 12 may also be disposed in other film layers of the display panel, which is not described herein again.
With continued reference to fig. 1, optionally, the display panel further includes a display area AA and a non-display area NA surrounding the display area AA;
the repair line 12 extends through the display area AA, and both ends thereof are located in the non-display area NA;
the two ends of the repair line 12 are connected with the connection parts 16, the connection parts 16 are located in the non-display area NA, the connection parts 16 and the plurality of data lines D are correspondingly arranged, and in a direction perpendicular to the array substrate, that is, in a direction perpendicular to the light emitting surface of the display panel, the connection parts 16 and the corresponding data lines D are at least partially overlapped.
With continued reference to fig. 1, the display panel further includes a display area AA and a non-display area NA surrounding the display area AA, the repair line 12 extends through the display area AA, and both ends of the repair line are located in the non-display area NA, the data line D also extends through the display area AA, and both ends of the data line D are located in the non-display area NA, both ends of the repair line 12 are connected with the connection portions 16, the connection portions 16 are located in the non-display area NA, the connection portions 16 and the plurality of data lines D are correspondingly disposed, in a direction perpendicular to the array substrate, that is, in a direction perpendicular to the light emitting surface of the display panel, the connection portions 16 and the data lines D corresponding thereto are at least partially overlapped, and when a certain data line D is broken, the data line D and the two connection portions 16 corresponding thereto are welded by laser, so that the data line D and the two connection portions 16 corresponding thereto are electrically connected to the repair line 12, thereby. The invention does not need to carry out long-line repair on the periphery of the display panel, effectively reduces the difficulty of repairing the data line D in the display panel and improves the efficiency of repairing the data line D.
Fig. 5 is a schematic plan view illustrating another display panel according to the present invention, fig. 6 is an enlarged view of a portion B of the display panel shown in fig. 5, fig. 7 is a cross-sectional view of the display panel shown in fig. 6 along F-F', referring to fig. 5-7, optionally, wherein the array substrate 10 further includes a plurality of touch lines TP disposed on the substrate 11, the touch lines TP extending along a second direction Y;
the touch line TP is located between two adjacent sub-pixels 41 arranged in the first direction X;
the connecting portion 16 and the touch line TP at least partially overlap in a direction perpendicular to the light emitting surface of the display panel.
Specifically, with continued reference to fig. 5 to 7, the array substrate 10 further includes a plurality of touch lines TP disposed on the substrate 11, the touch lines TP extend along the second direction Y, in a preferred embodiment, the extending tracks of the touch lines TP, the data lines D, and the repair lines 12 vertically projected on the substrate 11 are the same, and in some variations, the extending tracks of the touch lines TP, the data lines D, and the repair lines 12 vertically projected on the substrate 11 may also be different. The touch line TP is located between two adjacent sub-pixels 41 arranged along the first direction X, the connecting portion 16 and the touch line TP are at least partially overlapped in a direction perpendicular to the light emitting surface of the display panel, and when the touch line TP is broken, the touch line TP and two corresponding connecting portions 16 are welded by laser, so that the touch line TP is electrically connected with the corresponding repairing line 12, and the repairing of the touch line TP is achieved. The invention can repair the data line D and also repair the touch line TP through the repair line 12.
With continued reference to fig. 5-7, optionally, wherein between two adjacent sub-pixels 41 provided with the touch line TP, the data line D, and the repair line 12, the repair line 12 is located between the touch line TP and the data line D.
It should be noted that fig. 5-7 exemplarily show that the touch line TP, the data line D, and the repair line 12 may be disposed between two adjacent sub-pixels 41, and at this time, the repair line 12 may be located between the touch line TP and the data line D. In other embodiments of the present invention, the touch line TP, the data line D, and the repair line 12 may also adopt other flat cable structures. The following are exemplary: referring to fig. 8, fig. 8 is a schematic plan view illustrating another display panel according to the present invention, in which the touch line TP and the repair line 12 may be located between two different adjacent sub-pixels 41. Referring to fig. 9, fig. 9 is a schematic plan view illustrating a display panel according to still another embodiment of the present invention, where between two adjacent sub-pixels 41 provided with a touch line TP, a data line D and a repair line 12, the touch line TP may be located between the repair line 12 and the data line D, and the touch line TP and the repair line 12 may also be located between two different adjacent sub-pixels 41.
With continued reference to fig. 5-7, optionally, in the first direction X, the line width of the repair line 12 is greater than or equal to 1 μm, the line distance between the repair line 12 and the data line D closest thereto is greater than or equal to 1 μm, and the line distance between the repair line 12 and the touch line TP closest thereto is greater than or equal to 1 μm.
Specifically, between two adjacent sub-pixels 41 provided with a touch line TP, a data line D, and a repair line 12, the repair line 12 is positioned between the touch line TP and the data line D, in the first direction X, the line distance between the repair line 12 and the data line D closest to the repair line 12 is D3, the line distance between the repair line 12 and the touch line TP closest to the repair line 12 is D2, and D3 is greater than or equal to 1 μm, which effectively prevents film layer stacking from occurring between the repair line 12 and the data line D closest to the repair line 12 when an error exists in the production process, and effectively prevents the touch line TP from being affected, the D2 is greater than or equal to 1 μm, which effectively prevents film layer stacking from occurring between the repair line 12 and the touch line TP closest to the repair line 12 when an error exists in the production process, effectively prevents the touch line TP from being affected, and effectively reduces the requirement on the accuracy of the repair line TP, the data line D, and the repair line 12. In the first direction X, the line width of the repair line 12 is d1, d1 is greater than or equal to 1 μm, the conduction capability of the repair line 12 is effectively ensured, and the manufacturing process of the repair line 12 is reduced. Optionally, d1 is greater than or equal to 1.8 μm.
With continued reference to fig. 1, optionally, wherein each column of sub-pixels 41 arranged along the second direction Y is disposed corresponding to one data line D, and each column of pixel units 40 arranged along the second direction Y is disposed corresponding to one repair line 12.
Specifically, with reference to fig. 1, each column of sub-pixels 41 arranged along the second direction Y and one data line D are arranged correspondingly, each column of pixel units 40 arranged along the second direction Y and one repair line 12 are arranged correspondingly, one repair line 12 corresponds to at least two data lines D, and the data line D corresponding to the repair line D can be repaired through one repair line 12.
It should be noted that fig. 1 exemplarily shows that the repair line 12 is disposed between two adjacent columns of pixel units 40, in other embodiments of the present invention, the repair line 12 corresponding to each column of the pixel units 40 arranged along the second direction Y may also be disposed between any two adjacent sub-pixels 41 in the pixel units 40 corresponding thereto, and the pixel units 40 arranged along the second direction Y in each column are disposed corresponding to two or more repair lines 12, which is not described herein again.
With continued reference to fig. 1-3, optionally, the support columns 30 include a first support column 31 and a second support column 32, and the height of the first support column 31 is greater than the height of the second support column 32 in a direction perpendicular to the light exit surface of the display panel.
Specifically, the support columns 30 include a first support column 31 and a second support column 32, a step (height difference) exists between the first support column 31 and the second support column 32, and the thickness of the display panel can be finely adjusted by adjusting the step between the first support column 31 and the second support column 32. Illustratively, in a direction perpendicular to the light emitting surface of the display panel, the height of the first supporting column 31 is greater than that of the second supporting column 32, when the display panel is subjected to an external pressure, the first supporting column 31 first bears all the pressure and is compressed, and when the first supporting column 31 is compressed until the step difference between the first supporting column 31 and the second supporting column 32 is reduced to 0, the first supporting column 31 and the second supporting column 32 jointly bear the external pressure.
Alternatively, referring to fig. 2, the vertical projection pattern of the supporting pillars 30 on the plane of the array substrate 10 is circular. In other embodiments of the present invention, the vertical projection pattern of the supporting pillars 30 on the plane of the array substrate 10 may also be regular hexagon, ellipse, rectangle, or other patterns, which is not described herein again.
It should be noted that fig. 3 exemplarily shows that the supporting pillars 30 are formed on one side of the color filter substrate 20 close to the array substrate 10, and in other embodiments of the present invention, the supporting pillars 30 may also be formed on one side of the array substrate 10 close to the color filter substrate 20.
With continuing reference to fig. 1-3, optionally, wherein the array substrate 10 further includes a plurality of gate lines G disposed on the substrate 11, the gate lines G extending along the first direction X;
a gate electrode T4 of the thin film transistor FTF is electrically connected to one gate line G;
the vertical projection of the semiconductor portion T3 of the thin film transistor TFT in a direction perpendicular to the light exit surface of the display panel is located within the vertical projection of the gate electrode T4 of the thin film transistor TFT.
Specifically, the gate electrode T4 of the thin film transistor FTF is electrically connected to a gate line G, a gate voltage signal is supplied to the gate electrode T4 of the thin film transistor TFT through the gate line G, and the semiconductor portion T3 of the thin film transistor TFT turns on the source electrode T1 and the drain electrode T2 of the thin film transistor TFT.
The present embodiment provides a display device including the display panel as described above.
Referring to fig. 10, fig. 10 is a schematic plan view of a display device according to the present invention. Fig. 10 provides a display device 1000 including a display panel 100, wherein the display panel is the display panel 100 according to any of the above embodiments of the present invention. The embodiment of fig. 10 is only an example of a mobile phone, and the display device 1000 is described, but it should be understood that the display device provided in the embodiment of the present invention may be other display devices with a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
the display panel provided by the invention comprises an array substrate and a color film substrate which are oppositely arranged, wherein a plurality of support columns are arranged between the array substrate and the color film substrate, the array substrate comprises a plurality of data lines and a plurality of repairing lines which are arranged on a substrate, the data lines and the repairing lines extend along the second direction, and after the data lines are broken, the data lines can be repaired through the repairing lines without long-line repairing at the periphery of the display panel, so that the difficulty in repairing the data lines in the display panel is effectively reduced, and the efficiency of repairing the data lines is improved. The sub-pixels comprise the thin film transistors, and in the direction perpendicular to the array substrate, the supporting columns and the thin film transistors are at least partially overlapped, so that the influence of the supporting columns on the aperture ratio of the sub-pixels is effectively reduced. The at least one data line and the at least one repair line are located between two adjacent sub-pixels arranged along the first direction, and the source electrode of the thin film transistor is electrically connected with the data line, namely the repair line is relatively close to the thin film transistor connected with the data line located between the two adjacent sub-pixels. The data line and the source electrode and the drain electrode of the thin film transistor are arranged on the same layer, and the semiconductor part of the thin film transistor is positioned on one side of the source electrode of the thin film transistor close to the substrate. When the film thickness of the repair line is larger than the total film thickness of the source electrode of the thin film transistor TFT and the semiconductor part of the thin film transistor, the box thickness between the color film substrate and the area where the repair line is located in the array substrate is smaller than the height of the support pillar, if the attachment of the color film substrate and the array substrate in the display panel is deviated or the display panel is influenced by external force to cause deviation between the color film substrate and the array substrate, the position of the support pillar is correspondingly deviated, and when the support pillar is deviated to the area where the repair line is located in the array substrate, the repair line can cause the support pillar to be in a skewed state to influence the support performance of the support pillar. Therefore, in the direction perpendicular to the array substrate, the film thickness of the repair line is smaller than or equal to the total film thickness of the source electrode of the thin film transistor and the semiconductor part of the thin film transistor, and the influence of the arrangement of the repair line on the supporting performance of the supporting column is effectively reduced.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (11)

1. A display panel, comprising:
the array substrate and the color film substrate are oppositely arranged, and a plurality of support columns are arranged between the array substrate and the color film substrate;
the array substrate comprises a substrate, a plurality of data wires and a plurality of repairing wires which are arranged on the substrate, and a plurality of pixel units which are arranged in an array mode along a first direction and a second direction, wherein each pixel unit comprises at least two sub-pixels which are arranged along the first direction, and the first direction is intersected with the second direction;
the data lines and the repair lines extend along the second direction, and at least one data line and at least one repair line are located between two adjacent sub-pixels arranged along the first direction;
the sub-pixel comprises a thin film transistor, and a source electrode of the thin film transistor is electrically connected with one data line;
the data line and the source electrode and the drain electrode of the thin film transistor are arranged on the same layer, and the semiconductor part of the thin film transistor is positioned on one side of the source electrode of the thin film transistor close to the substrate;
in the direction perpendicular to the array substrate, the supporting columns and the thin film transistors at least partially overlap;
in the direction perpendicular to the array substrate, the film thickness of the repair line is d1, and the total film thickness of the source electrode of the thin film transistor and the semiconductor part of the thin film transistor is d 2; wherein the content of the first and second substances,
d1≤d2,d1>0,d2>0。
2. the display panel according to claim 1,
the array substrate further comprises a first insulating layer, a second insulating layer and a third insulating layer;
the first insulating layer is positioned on one side, close to the substrate base plate, of the semiconductor part of the thin film transistor, the second insulating layer is positioned on one side, far away from the substrate base plate, of the data line, the repairing line is positioned on one side, far away from the substrate base plate, of the second insulating layer, and the third insulating layer is positioned on one side, far away from the substrate base plate, of the repairing line.
3. The display panel according to claim 1,
the array substrate further comprises a first insulating layer, a second insulating layer and a third insulating layer;
the first insulating layer is located on one side, close to the substrate base plate, of the repairing line, the second insulating layer is located on one side, far away from the substrate base plate, of the repairing line, the semiconductor part of the thin film transistor is located on one side, far away from the substrate base plate, of the second insulating layer, and the third insulating layer is located on one side, far away from the substrate base plate, of the data line.
4. The display panel according to claim 1, further comprising a display area and a non-display area surrounding the display area;
the repair line extends through the display area, and two ends of the repair line are positioned in the non-display area;
the two ends of the repair line are connected with connecting parts, the connecting parts are located in the non-display area, the connecting parts and the data lines are correspondingly arranged, and the connecting parts and the data lines corresponding to the connecting parts are at least partially overlapped in the direction perpendicular to the light emergent surface of the display panel.
5. The display panel according to claim 4,
the array substrate further comprises a plurality of touch lines arranged on the substrate, and the touch lines extend along the second direction;
the touch line is positioned between two adjacent sub-pixels arranged along the first direction;
in a direction perpendicular to the light emitting surface of the display panel, the connecting portion and the touch line are at least partially overlapped.
6. The display panel according to claim 5,
between two adjacent sub-pixels provided with the touch line, the data line and the repair line, the repair line is positioned between the touch line and the data line.
7. The display panel according to claim 6,
in the first direction, the line width of the repair line is greater than or equal to 1 μm, the line distance between the repair line and the data line closest to the repair line is greater than or equal to 1 μm, and the line distance between the repair line and the touch line closest to the repair line is greater than or equal to 1 μm.
8. The display panel according to claim 1,
the sub-pixels arranged along the second direction in each column are arranged corresponding to one data line, and the pixel units arranged along the second direction in each column are arranged corresponding to one repair line.
9. The display panel according to claim 1,
the support column comprises a first support column and a second support column, and the height of the first support column is larger than that of the second support column in the direction perpendicular to the light emergent surface of the display panel.
10. The display panel according to claim 1,
the array substrate further comprises a plurality of gate lines disposed on the substrate base plate, the gate lines extending along the first direction;
the grid of the thin film transistor is electrically connected with one grid line;
in a direction perpendicular to the light emitting surface of the display panel, a vertical projection of the semiconductor part of the thin film transistor is positioned in a vertical projection of the grid electrode of the thin film transistor.
11. A display device characterized by comprising the display panel according to any one of claims 1 to 10.
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