CN113990904A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113990904A CN113990904A CN202111246763.0A CN202111246763A CN113990904A CN 113990904 A CN113990904 A CN 113990904A CN 202111246763 A CN202111246763 A CN 202111246763A CN 113990904 A CN113990904 A CN 113990904A
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- 230000004888 barrier function Effects 0.000 claims description 62
- 238000000034 method Methods 0.000 abstract description 26
- 239000003292 glue Substances 0.000 abstract description 10
- 238000005530 etching Methods 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 15
- 229920002120 photoresistant polymer Polymers 0.000 description 14
- 239000011368 organic material Substances 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
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- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
Abstract
The invention discloses a display panel and a display device. The display panel comprises a display area and a non-display area; the non-display area comprises a fan-out area, and the fan-out area is provided with a blocking structure and a touch signal line; the length extending direction of the vertical projection of at least part of the blocking structures in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal lines in the thickness direction of the display panel form a first included angle, the touch signal lines and the first direction form a second included angle, and the first included angle is larger than or equal to the second included angle; the first direction is a row direction of the display panel. The included angle between the contact surface of the blocking structure and the touch signal line and the intersection of the touch signal line can be increased, so that the probability of PR glue residue in the exposure and development process can be reduced in the process flow of forming the touch signal line, the phenomenon of short circuit of the touch signal line in the etching process can be reduced, and the touch reliability of the display panel is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
In the prior art, a touch lead on a touch substrate in a touch display panel is connected to a bonding terminal of the touch display panel through a fan-out area, so that the touch lead is connected to an external driving circuit. When the number of the touch leads is more, a certain included angle is formed between the extending direction of the touch leads and the row direction of the touch display panel, so that the area required by the fan-out area is reduced. At the moment, the included angle formed by at least part of the touch lead and the dam in the touch display panel is smaller, so that the touch lead is easy to have a short circuit phenomenon.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for improving the reliability of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including a display area and a non-display area; the non-display area comprises a fan-out area, and the fan-out area is provided with a blocking structure and a touch signal line;
the length extending direction of the vertical projection of at least part of the blocking structure in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel form a first included angle, the touch signal line and the first direction form a second included angle, and the first included angle is larger than or equal to the second included angle; wherein the first direction is a row direction of the display panel.
Optionally, the fan-out area includes a first area and a second area, and the touch signal line is disposed in the first area;
the length extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel in the first area form the first included angle, and the extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel in the second area and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel in the adjacent first area form a third included angle; wherein the third included angle is less than or equal to 10 °.
Optionally, a length extending direction of a vertical projection of the blocking structure disposed in the second region in the thickness direction of the display panel is parallel to an extending direction of a vertical projection of the touch signal line adjacent to the first region in the thickness direction of the display panel.
Optionally, the fan-out area includes a plurality of the first areas and the second areas alternately arranged, the barrier structures in the first areas and the barrier structures in the second areas are connected, and the barrier structures in the fan-out area extend in a broken line along the first direction.
Optionally, along the first direction, the extending direction of a straight line formed by starting points of the barrier structures in different first areas is parallel to the first direction, and the extending direction of a straight line formed by ending points of the barrier structures in different first areas is parallel to the first direction.
Optionally, the first area and the second area which are adjacently arranged include overlapped side edges, the side edges and the first direction have included angles, and the extending direction of the side edges is the same as the extending direction of the touch signal lines which are adjacent to the first area.
Optionally, the first area includes at least two touch signal lines, and in the first area, an extending direction of a vertical projection of each touch signal line in the thickness direction of the display panel is equal to a first included angle of a length extending direction of a vertical projection of the blocking structure in the thickness direction of the display panel.
Optionally, along the first direction, a distance from a side edge of the second region to the blocking structure in the second region is greater than zero and smaller than a width of the blocking structure in the second region, where the width of the blocking structure in the second region is the width along the first direction.
Optionally, a difference between the first included angle and the second included angle is greater than or equal to 5 ° and less than or equal to 60 °; or the difference value between the first included angle and the second included angle is zero.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the first aspect.
According to the technical scheme of the embodiment of the invention, the included angle between the length extending direction of the vertical projection of the blocking structure of the fan-out area in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel is larger than or equal to the included angle between the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel and the first direction, so that the included angle between the contact surface of the blocking structure and the touch signal line and the intersection of the touch signal line can be increased, the probability of PR glue residue in an exposure and development process can be reduced in the process flow of forming the touch signal line, the phenomenon of short circuit of the touch signal line in an etching process can be reduced, and the touch reliability of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel provided in the prior art;
fig. 2 is a process flow diagram of a touch lead provided in the prior art;
FIG. 3 is a schematic cross-sectional view illustrating a fan-out region before a photoresist stripping process is performed according to the prior art;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a partial blocking structure of a fan-out area and a touch signal line according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating an extending direction of a blocking structure in a second area and a touch signal line in an adjacent first area according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display panel provided in the prior art. As shown in fig. 1, the display panel includes a display area 101 and a non-display area 102, where the non-display area 102 includes a fan-out area fanout and a bonding area bonding disposed on a side of the fan-out area fanout away from the display area 101. The display panel comprises an array substrate and a touch substrate which are arranged in a stacked mode; the array substrate comprises a pixel driving circuit layer, a light-emitting display layer and an encapsulation layer, wherein the pixel driving circuit layer is arranged on one side of the light-emitting display layer and used for forming a pixel driving circuit and providing a driving signal for the light-emitting display layer. The packaging layer is arranged on one side of the light-emitting display layer, which is far away from the pixel driving circuit layer, and is used for packaging the light-emitting display layer, so that the probability that the organic light-emitting material in the light-emitting display layer is infected by water and oxygen is reduced. The encapsulation layer may include an organic material layer, and the array substrate is provided with a DAM disposed around the display region 101 in the non-display region 102 for blocking an overflow phenomenon of the organic material in the organic material layer. The touch substrate is arranged on one side, far away from the light-emitting display layer, of the packaging layer, the touch units T arranged in an array mode are arranged in the display area 101 of the touch substrate, and the touch units T are connected with bonding terminals of bonding areas through fanouts and bonding areas by adopting touch leads TS, so that the touch leads TS are connected with an external driving circuit. When the number of the touch units T is large, the number of the touch leads TS led out to the fanout area fanout is also large correspondingly. For example, 600-. Due to the limitation of the frame width of the display panel, the touch lead TS led out to the fan-out area fanout cannot be led out vertically, and at this time, the touch lead TS has a certain angle with the row direction X 'of the display panel, and the extending direction of the DAM in the fan-out area fanout is the same as the row direction X' of the display panel, so the touch lead TS and the DAM have a certain angle, and for example, the angle between the touch lead TS and the DAM may be smaller than 20 °. Fig. 2 is a process flow diagram of a touch lead provided in the prior art. As shown in fig. 2, in the process of forming the touch lead TS, the array substrate may be used as a substrate of the touch substrate. In the process flow, a substrate is cleaned (a DAM is arranged on the substrate), then a touch lead layer is formed through film coating, then an exposure development layer is formed through Photoresist (PR) coating, then the exposure development layer is patterned through exposure development, the pattern of the exposure development layer is the same as that of the touch lead, then the touch lead layer is patterned through etching, the touch lead is formed, and finally the exposure development layer on the touch lead is subjected to photoresist stripping. Fig. 3 is a schematic cross-sectional view illustrating a fan-out region before a photoresist stripping process is performed in the prior art. As shown in fig. 2 and 3, the DAM has a certain height, and when the angle between the touch lead TS and the DAM is relatively small, when the exposure development layer is patterned by exposure development, the PR glue may remain at a position intersecting with the DAM (a dotted frame position in the exposure development process in fig. 2), so that the remaining PR glue may remain on the touch lead layer in a subsequent etching process, and thus, a short circuit phenomenon may easily occur in adjacent touch leads formed after etching, and the touch reliability of the display panel may be reduced.
In view of the above technical problems, an embodiment of the present invention provides a display panel. Fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 5 is a schematic structural diagram of a partial blocking structure of a fan-out area and a touch signal line according to an embodiment of the present invention. As shown in fig. 4 and 5, the display panel includes a display area 110 and a non-display area 120; the non-display area 120 includes a fan-out area F1, and the fan-out area F1 is provided with a barrier structure 121 and a touch signal line 122; the length extending direction of the vertical projection of at least part of the blocking structures 121 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal lines 122 in the thickness direction of the display panel form a first included angle a, the touch signal lines 122 form a second included angle b with the first direction X, and the first included angle a is larger than the second included angle b; the first direction X is a row direction of the display panel.
Specifically, the display panel may be a touch display panel. The display panel comprises an array substrate and a touch substrate, wherein a barrier structure 121 is arranged on the array substrate, and the barrier structure 121 can be arranged around the display area 110 and used for blocking overflow of organic materials in the array substrate. The touch substrate is provided with a touch unit and a touch signal line 122, and the touch signal line 122 extends to the display area 110 through the fan-out area F1, is correspondingly connected with the touch unit arranged in the display area 110, and is used for providing a path for connecting the touch unit with an external driving circuit. Along the thickness direction of the display panel, the touch signal line 122 is disposed on one side of the blocking structure 121 and spans the blocking structure 121. Along the viewing angle perpendicular to the thickness direction of the display panel, in the fan-out area F1, the extending direction of the vertical projection of part of the touch signal lines 122 in the thickness direction of the display panel and the first direction X form a second included angle b; at this time, an included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the first direction X may be set, and the included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the first direction X and the second included angle b are respectively located at two sides of the first reference straight line L1. The first reference straight line L1 passes through an intersection point of the barrier structure 121 and a touch signal line 122, and the extending direction of the first reference straight line is the same as the first direction X, so that a first included angle a between the length extending direction of the vertical projection of the barrier structure 121 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line 122 in the thickness direction of the display panel is greater than a second included angle b, thereby increasing the included angle between the surface of the barrier structure 121 in contact with the touch signal line 122 and the touch signal line 122 at the intersection point, further reducing the probability of PR glue remaining in the exposure and development process in the process flow of forming the touch signal line 122, further reducing the phenomenon of short circuit of the touch signal line 122 in the etching process, and improving the touch reliability of the display panel.
It should be noted that the second included angles b between different touch signal lines 122 and the first direction X may have different values, and at this time, the included angles between the length extending directions of the vertical projections of the blocking structures 121 at different positions of the fan-out region F1 in the thickness direction of the display panel and the first direction X may be set to be different according to the second included angles b, and it is only necessary that the first included angle a between the blocking structure 121 and the touch signal line 122 is greater than the included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the first direction X. For example, when a second included angle b between the touch signal line 122 and the first direction X is larger, an included angle between the blocking structure 121 and the first direction X may be set smaller; when the second included angle b between the touch signal line 122 and the first direction X is smaller, the included angle between the blocking structure 121 and the first direction X may be set larger.
On the basis of the technical scheme, the difference value between the first included angle a and the second included angle b is greater than or equal to 5 degrees and less than or equal to 60 degrees.
Specifically, the difference between the first included angle a and the second included angle b is an included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the first direction X. Referring to fig. 4 and 5, along the first direction X, an included angle between the extending direction of the vertical projection of the touch signal line 122 in the thickness direction of the display panel and the first direction X gradually increases until the included angle with the first direction X is 90 °, and then gradually decreases. Therefore, along the first direction X, the included angle between the extending direction of the vertical projection of the touch signal lines 122 disposed at the two sides of the fan-out region F1 in the thickness direction of the display panel and the first direction X is the smallest, and the included angle between the extending direction of the vertical projection of the touch signal line 122 disposed in the middle in the thickness direction of the display panel and the first direction X is the largest. Along the column direction of the display panel, the fan-out region F1 has a certain width, the included angle between the extending direction of the vertical projection of the touch signal lines 122 arranged at the two sides of the fan-out region F1 in the thickness direction of the display panel and the first direction X is generally greater than 25 °, by setting the difference value between the first included angle a and the second included angle b to be greater than or equal to 5 °, the included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal lines 122 in the thickness direction of the display panel can be greater than or equal to 30 °, so that the probability of residual PR glue in the exposure and development process can be reduced in the process flow of forming the touch signal lines 122, the phenomenon of short circuit of the touch signal lines 122 in the etching process can be reduced, and the touch reliability of the display panel is improved. Similarly, the maximum included angle between the extending direction of the vertical projection of the touch signal line 122 in the middle in the thickness direction of the display panel and the first direction X reaches 90 °, and by setting the difference between the first included angle a and the second included angle b to be less than or equal to 60 °, it can also be ensured that the included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line 122 in the thickness direction of the display panel is greater than or equal to 30 °, so that the probability of PR glue residue in the exposure and development process can be reduced in the process flow of forming the touch signal line 122.
Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 7 is a schematic structural diagram of a blocking structure in a second area and an extending direction of a touch signal line in an adjacent first area according to an embodiment of the present invention. As shown in fig. 6 and 7, the fan-out region F1 includes first regions D1 and second regions D2 alternately arranged, and the touch signal lines 122 are disposed in the first regions D1; the length extending direction of the vertical projection of the barrier structure 121 in the first region D1 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line 122 in the thickness direction of the display panel have a first angle a, and the length extending direction of the vertical projection of the barrier structure 121 in the second region D2 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line 122 in the adjacent first region D1 in the thickness direction of the display panel have a third angle c; wherein the third included angle c is less than or equal to 10 °.
Specifically, the fan-out region F1 may be divided into at least one first region D1 and at least one second region D2. When the first region D1 and/or the second region D2 includes at least two, the first region D1 and the second region D2 may be disposed at an interval. The touch signal line 122 is disposed in the first area D1, and the extending direction of the length of the vertical projection of the blocking structure 121 in the thickness direction of the display panel in the first area D1 and the extending direction of the vertical projection of the touch signal line 122 in the thickness direction of the display panel have a first included angle a, which can increase the included angle at the intersection between the surface of the blocking structure 121 contacting the touch signal line 122 and the touch signal line 122, and further can reduce the probability of PR glue remaining in the exposure and development process in the process flow of forming the touch signal line 122. The length extending direction of the vertical projection of the blocking structure 121 disposed in the second region D2 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line 122 in the adjacent first region D1 in the thickness direction of the display panel have a third included angle c, at this time, the included angle between the length extending direction of the vertical projection of the blocking structure 121 disposed in the second region D2 in the thickness direction of the display panel and the first direction X and the included angle between the length extending direction of the vertical projection of the blocking structure 121 in the thickness direction of the display panel and the first direction X of the first region D1 are respectively located at two sides of a second reference line L2, wherein the second reference line L2 is a straight line passing through the intersection point of the blocking structure 121 in the first region D1 and the blocking structure 121 in the second region D2, and the extending direction is perpendicular to the first direction X. The extending direction of the barrier structures 121 in the second region D2 is bent from the end of the barrier structure 121 in the first region D1 close to the second region to the direction away from the display region, so that the space occupied by the barrier structures 121 in the column direction of the display panel can be reduced, and the probability that the barrier structures 121 in the fan-out region F1 extend to the display region 110 is reduced. Moreover, the third included angle c is less than or equal to 10 °, and the extending direction of the blocking structure 121 in the second region D2 can be bent from the end of the blocking structure 121 in the first region D1 close to the second region to the direction far away from the display region as far as possible, so that the space occupied by the blocking structure 121 in the column direction of the display panel can be reduced as far as possible, the probability that the blocking structure 121 extends to the display region 110 when the second region D2 is relatively small can be reduced, the area of the first region D1 is increased on the basis of a certain fan-out region F1, and thus more touch signal lines 122 can be favorably arranged, and the touch accuracy of the display panel can be favorably improved. Or the distance between the touch signal lines 122 is increased, thereby further reducing the short circuit phenomenon of the touch signal lines 122.
It should be noted that the touch signal lines 122 may be only disposed in the first area D1, so as to avoid a phenomenon that when the touch signal lines 122 are disposed in the second area D2, an included angle between the blocking structure 121 in the second area D2 and the touch signal lines 122 in the second area D2 is relatively small, which is likely to cause short circuit of the touch signal lines 122. In addition, the extending directions of the touch signal lines 122 in different first areas D1 are different, and the extending direction of the barrier structures 121 in the second area D2 only needs to be compared with the extending direction of the touch signal lines 122 in the adjacent first area D1. When the adjacent first regions D1 are disposed on both sides of the second region D2 along the first direction X, the touch signal lines 122 in one adjacent first region D1 may be selected as a reference.
With continued reference to fig. 6 and 7, the length extending direction of the vertical projection of the blocking structure 121 disposed in the second region D2 in the thickness direction of the display panel is parallel to the extending direction of the vertical projection of the touch signal line 122 in the adjacent first region D1 in the thickness direction of the display panel.
Specifically, when the extending direction of the length of the vertical projection of the barrier structure 121 in the second region D2 in the thickness direction of the display panel is parallel to the extending direction of the vertical projection of the touch signal line 122 in the adjacent first region D1 in the thickness direction of the display panel, after the extending direction of the barrier structure 121 in the first region D1 is corrected by the barrier structure 121 in the second region D2, along the first direction X, the occupied space of the barrier structure 121 in the next first region D1 in the column direction of the display panel and the occupied space of the barrier structure 121 in the previous first region D1 in the column direction of the display panel may have an overlapping region, so that the space occupied by the barrier structure 121 in the column direction of the display panel may be further reduced, and the barrier structure 121 in the fan-out region F1 may be prevented from extending to the display region 110.
With continued reference to fig. 6 and 7, the fan-out region F1 includes a plurality of first regions D1 and second regions D2 alternately arranged, the barrier structures 121 in the first region D1 are connected with the barrier structures 122 in the second region D2, and the barrier structures 121 in the fan-out region F1 extend in a broken line along the first direction X.
Specifically, the fan-out region F1 may include a plurality of first regions D1 and a plurality of second regions D2, when the first regions D1 and the second regions D2 are alternately disposed. In the first region D1 and the second region D2, the barrier structures 121 extend linearly, respectively, so that the length of the barrier structures 121 may be reduced; meanwhile, the extending direction of the blocking structure in the first area is opposite to the extending direction of the blocking structure in the second area, so that the included angle between the blocking structure 121 and the touch signal line 122 can be ensured, and the condition that the included angle between the local blocking structure 121 and the touch signal line 122 is smaller is avoided. When the barrier structures 121 in the first region D1 and the second region D2 are both straight lines, and the extending direction of the barrier structures in the first region is opposite to the extending direction of the barrier structures in the second region, the barrier structures 121 in the first region D1 and the barrier structures 122 in the second region D2 are connected, so that the barrier structures 121 in the fan-out region F1 extend in a broken line. In addition, the barrier structures 121 in the first region D1 and the barrier structures 121 in the second region D2 are connected, so that the continuity of the barrier structures 121 in the fan-out region F1 can be ensured, and the overflow effect of the organic material blocked by the barrier structures 121 can be ensured.
It should be noted that, with continued reference to fig. 6, the display panel includes a display area 110 and a non-display area 120; the non-display area 120 includes a fan-out area F1, and the fan-out area F1 is provided with a barrier structure 121 and a touch signal line 122; the length extending direction of the vertical projection of at least part of the blocking structures 121 in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal lines 122 in the thickness direction of the display panel form a first included angle a, the touch signal lines 122 form a second included angle b with the first direction X, and the first included angle a is equal to the second included angle b; the first direction X is a row direction of the display panel. Namely, the difference between the first included angle and the second included angle is zero. When the extending direction of the touch signal line 122 is perpendicular to the first direction X, the extending direction of the blocking structure 121 may be set to be parallel to the first direction X, so that the included angle between the touch signal line 122 and the blocking structure 121 may be ensured to be relatively large, thereby improving the short circuit phenomenon between adjacent touch signal lines 122 when the touch signal line 122 is fabricated, and improving the touch reliability of the display panel.
Optionally, the touch signal line 122 extending in a direction perpendicular to the first direction may be disposed in a third area (not labeled in the figure), where the third area is located between the adjacent first areas, or located between the adjacent first areas and the second areas; or the sector is provided with only a third area.
Alternatively, along the first direction X, the extending direction of the straight line formed by the starting points of the barrier structures 121 in the different first regions D1 is parallel to the first direction X, and the extending direction of the straight line formed by the ending points of the barrier structures 121 in the different first regions D1 is parallel to the first direction X.
Specifically, when the barrier structures 121 in the fan-out area F1 extend in a broken line, the extending direction of the straight line formed by the starting points of the barrier structures 121 in different first areas D1 may be parallel to the first direction X, and the extending direction of the straight line formed by the end points of the barrier structures 121 in different first areas D1 may be parallel to the first direction X, so that the connecting line of the highest point of the broken line presented by the barrier structures 121 in the fan-out area F1 is parallel to the first direction X, and the connecting line of the lowest point is parallel to the first direction X, so that the spaces occupied by the barrier structures 121 in different first areas D1 in the column direction of the display panel are the same, the space in the column direction of the display panel required by the barrier structures 121 is further reduced, and the barrier structures 121 in the fan-out area F1 are prevented from extending to the display area 110. While the length of the barrier structure 121 can be reduced while ensuring the continuity of the fan-out region F1 of the barrier structure 121.
With continued reference to fig. 6 and 7, the first area D1 and the second area D2 include a side edge D11 that is overlapped, the side edge D11 forms an included angle with the first direction X, and the extending direction of the side edge D11 is the same as the extending direction of the touch signal line 122 in the adjacent first area D1.
Specifically, the side edges D11 of the first and second regions D1 and D2 may be divided according to the extending direction of the touch signal lines 122. That is, the side edges D11 of the first and second regions D1 and D2 are parallel to the extending direction of the touch signal lines 122 in the adjacent first region D1. When the side edge D11 of the first region D1 and the second region D2, which coincide, is located at the left side of the second region D2 along the first direction X, the adjacent first region D1 of the side edge D11 is the adjacent first region D1 located at the left side of the second region D2. At this time, the extending direction of the side edge D11 is the same as the extending direction of the touch signal line 122 in the first region D1 adjacent to the left side of the second region D2. When the side edge D11 of the first region D1 and the second region D2, which coincide, is located at the right side of the second region D2 in the first direction X, the adjacent first region D1 of the side edge D11 is the adjacent first region D1 located at the right side of the second region D2. At this time, the extending direction of the side edge D11 is the same as the extending direction of the touch signal line 122 in the first region D1 adjacent to the right side of the second region D2. Illustratively, the first and second regions D1 and D2 may be trapezoidal. When the extending direction of the touch signal lines 122 in the first region D1 adjacent to the side edge D11 of the second region has an angle with the column direction of the display panel, the side edges D11 of the first region D1 and the second region D2 have the same angle with the column direction of the display panel, the required width of the touch signal lines 122 in the first region D1 and the touch signal lines 122 in the second region D2 along the first direction X can be reduced, and when the first region D1 and the second region D2 are rectangular, the empty space of the first region D1 and the second region D2 in the first direction X can be reduced, so that the utilization rate of the first region D1 and the second region D2 can be improved.
In other embodiments, optionally, the first area includes at least two touch signal lines, and in the first area, an extending direction of a vertical projection of each touch signal line in the thickness direction of the display panel and a length extending direction of a vertical projection of the blocking structure in the thickness direction of the display panel have a first included angle equal to each other.
Specifically, in the same first region, when the included angle between the extending direction of the blocking structure and the first direction is not changed, the included angle between the extending direction of each touch signal line and the first direction may be set to be not changed, so that the extending direction of the vertical projection of each touch signal line in the thickness direction of the display panel may be equal to the first included angle in the length extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel, which is beneficial to ensuring that the included angle between the surface of the blocking structure in contact with different touch signal lines and the touch signal lines at the intersection is larger, and reducing the probability of PR glue residue in the exposure and development process. In addition, when the included angle between the extending direction of the different touch signal lines in the same first region and the first direction changes (for example, along the first direction, the width of the first region near the display region is greater than the width of the first region far from the display region, and at this time, the included angle between the extending direction of the different touch signal lines in the same first region and the first direction may be set to change), the extending direction of the blocking structure in the same first region can be changed according to the extending direction of the touch signal lines intersected with the same, so that the extending direction of the vertical projection of each touch signal line in the thickness direction of the display panel is equal to a first included angle of the length extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel, the included angle of the intersection positions of different touch signal lines and the surface of the blocking structure is ensured to be larger, and the probability of PR glue residue in the exposure and development process is reduced.
On the basis of the above technical solutions, along the first direction, a distance from a side edge of the second region to the blocking structure in the second region is greater than zero and smaller than a width of the blocking structure in the second region, wherein the width of the blocking structure in the second region is the width along the first direction.
Specifically, along the first direction, the distance from the side edge of the second region to the blocking structure in the second region is greater than zero, so as to ensure that the blocking structure is arranged in the second region. Meanwhile, the distance from the side edge of the second area to the blocking structure in the second area is smaller than the width of the blocking structure in the second area, so that the space waste of the fan-out area caused by the overlarge width of the second area can be avoided. Optionally, on the basis of ensuring that the second area accommodates the blocking structure, a distance from a side of the second area to the blocking structure in the second area may be set to be slightly larger than a setting error, so as to ensure that the position of the blocking structure is located in the second area when the error exists, and simultaneously avoid space waste of the fan-out area as much as possible.
Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 8, the non-display area 120 further includes a first sub-area a1, a second sub-area a2, and a third sub-area A3; the first sub-area a1 and the second sub-area a2 are disposed on two sides of the display area 110 along the first direction X, the third sub-area A3 and the fan-out area F1 are disposed on two sides of the display area 110 along the second direction Y, and the third sub-area A3 and the fan-out area F1 communicate with the first sub-area a1 and the second sub-area A3; the first sub-area a1, the second sub-area a2 and the third sub-area A3 are all provided with barrier structures 121, and the barrier structures 121 in the first sub-area a1, the second sub-area a2, the third sub-area A3 and the fan-out area F1 are connected to surround the display area 110; wherein the second direction Y intersects the first direction X.
Specifically, by disposing the barrier structures 121 in each of the first sub-region a1, the second sub-region a2, the third sub-region A3, and the fan-out region F1, and interconnecting the barrier structures 121 in the first sub-region a1, the second sub-region a2, the third sub-region A3, and the fan-out region F1, the barrier structures 121 may be disposed around the display region 110, so that the organic material extending in the display region 110 may be omnidirectionally blocked.
With continued reference to fig. 8, the non-display area 120 further includes a bonding area B1, the bonding area B1 is disposed on a side of the fan-out area F1 away from the display area 110, the bonding area B1 is disposed with bonding terminals, and the touch signal lines 122 are correspondingly connected to the bonding terminals.
Specifically, the bonding area B1 is provided with a plurality of bonding terminals, one end of each bonding terminal is correspondingly connected to the touch signal line 122, and the other end of each bonding terminal is connected to an external driving circuit, so as to implement the touch function of the display panel according to the touch signal provided by the touch signal line 122. For example, the external driving circuit may be a driving chip for implementing a touch function of the display panel according to the touch signal provided by the touch signal line 122.
The embodiment of the invention also provides a display device. Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 9, the display device 20 includes a display panel 21 provided in any embodiment of the present invention.
Specifically, the display panel 21 is the display panel provided in any embodiment of the present invention, and therefore has the same beneficial effects as the display panel provided in any embodiment of the present invention, and the description thereof is omitted here. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel includes a display region and a non-display region; the non-display area comprises a fan-out area, and the fan-out area is provided with a blocking structure and a touch signal line;
the length extending direction of the vertical projection of at least part of the blocking structure in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel form a first included angle, the touch signal line and the first direction form a second included angle, and the first included angle is larger than or equal to the second included angle; wherein the first direction is a row direction of the display panel.
2. The display panel of claim 1, wherein the fan-out area comprises a first area and a second area, the touch signal line being disposed in the first area;
the length extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel in the first area form the first included angle, and the length extending direction of the vertical projection of the blocking structure in the thickness direction of the display panel in the second area and the extending direction of the vertical projection of the touch signal line in the thickness direction of the display panel in the adjacent first area form a third included angle; wherein the third included angle is less than or equal to 10 °.
3. The display panel according to claim 2, wherein a length extending direction of a vertical projection of the blocking structure disposed in the second region in the thickness direction of the display panel is parallel to an extending direction of a vertical projection of the touch signal line in the adjacent first region in the thickness direction of the display panel.
4. The display panel of claim 2, wherein the fan-out area comprises a plurality of the first areas and the second areas alternately arranged, wherein the barrier structures in the first areas are connected with the barrier structures in the second areas, and wherein the barrier structures in the fan-out area extend along the first direction in a zigzag manner.
5. The display panel according to claim 4, wherein, in the first direction, the extending direction of a straight line formed by starting points of barrier structures in different first regions is parallel to the first direction, and the extending direction of a straight line formed by ending points of barrier structures in different first regions is parallel to the first direction.
6. The display panel according to claim 2, wherein the first region and the second region which are adjacently disposed include overlapped side edges, the side edges have an included angle with the first direction, and an extending direction of the side edges is the same as an extending direction of the touch signal lines in the first region.
7. The display panel according to claim 2, wherein the first area includes at least two touch signal lines, and in the first area, an extending direction of a vertical projection of each touch signal line in a thickness direction of the display panel is equal to a first included angle of a length extending direction of a vertical projection of the blocking structure in the thickness direction of the display panel.
8. The display panel according to claim 2, wherein the distance from the side edge of the second region to the blocking structure in the second region along the first direction is greater than zero and less than the width of the blocking structure in the second region, wherein the width of the blocking structure in the second region is the width along the first direction.
9. The display panel according to claim 1, wherein the difference between the first angle and the second angle is greater than or equal to 5 ° and less than or equal to 60 °; or the difference value between the first included angle and the second included angle is zero.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202111246763.0A CN113990904A (en) | 2021-10-26 | 2021-10-26 | Display panel and display device |
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| CN202111246763.0A CN113990904A (en) | 2021-10-26 | 2021-10-26 | Display panel and display device |
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