Display panel, display device, electronic equipment and preparation method
阅读说明：本技术 显示面板、显示装置、电子设备及制备方法 (Display panel, display device, electronic equipment and preparation method ) 是由 杨静 曹方旭 汪炳伟 于 2020-08-25 设计创作，主要内容包括：本申请公开了一种显示面板、显示装置、电子设备以及制备方法,涉及显示技术领域。一种显示面板,其包括依次层叠设置的TFT基板、像素界定层、电致发光器件层以及封装层,所述TFT基板上朝向所述像素界定层的一侧向远离所述像素界定层的方向上设有若干凹槽,所述若干凹槽将所述TFT基板分为若干相互间隔的子显示区,每个所述子显示区上容纳至少一个子像素；还包括若干搭接桥,所述搭接桥搭在所述凹槽上,且所述搭接桥的两端分别连接所述凹槽两侧的所述子显示区,用于为所述凹槽两侧的相邻子像素提供布线通道。本申请提供的显示面板在凹槽处增加走线位置,在原有的桥区减少走线增加子像素,可有效提高显示面板的分辨率。(The application discloses a display panel, a display device, electronic equipment and a preparation method, and relates to the technical field of display. A display panel comprises a TFT substrate, a pixel defining layer, an electroluminescent device layer and an encapsulation layer which are sequentially stacked, wherein a plurality of grooves are formed in the direction away from the pixel defining layer on one side of the TFT substrate, the grooves divide the TFT substrate into a plurality of sub-display areas which are spaced from each other, and at least one sub-pixel is accommodated in each sub-display area; still include a plurality of overlap joint bridges, the overlap joint bridge is taken on the recess, just the both ends of overlap joint bridge are connected respectively the recess both sides sub-display area for the adjacent sub-pixel of recess both sides provides the wiring passageway. The display panel provided by the application increases the wiring position at the groove, reduces wiring and increases sub-pixels in the original bridge area, and can effectively improve the resolution of the display panel.)
1. A display panel comprises a TFT substrate, a pixel defining layer, an electroluminescent device layer and an encapsulation layer which are sequentially stacked, and is characterized in that:
a plurality of grooves are formed in the TFT substrate in the direction away from the pixel defining layer from one side of the TFT substrate facing the pixel defining layer, the TFT substrate is divided into a plurality of sub-display areas which are spaced from each other by the grooves, and each sub-display area contains at least one sub-pixel;
still include a plurality of overlap joint bridges, the overlap joint bridge is taken on the recess, just the both ends of overlap joint bridge are connected respectively the recess both sides sub-display area for the adjacent sub-pixel of recess both sides provides the wiring passageway.
2. The display panel according to claim 1, characterized in that:
the bridge is made of an elastic material.
3. The display panel according to claim 1, characterized in that:
the lap joint bridge at least comprises a first glue layer;
the first glue film comprises an overlapping portion and a suspension portion, the suspension portion corresponds to the groove, two ends of the suspension portion are respectively connected with the overlapping portion, and the overlapping portion is respectively connected to the sub-display areas on two sides of the groove.
4. The display panel according to claim 3, wherein:
the suspension portion is arranged in parallel to the TFT substrate.
5. The display panel according to claim 3, wherein:
the suspension is disposed non-parallel to the TFT substrate.
6. The display panel according to claim 3, wherein:
the TFT substrate is arranged on the pixel defining layer, and the pixel defining layer is arranged on the TFT substrate;
the lap joint bridge also comprises a second adhesive layer;
the second adhesive layer is arranged between the TFT substrate and the first adhesive layer, and the second adhesive layer is arranged corresponding to the lap joint part;
the second adhesive layer and the interlayer dielectric layer are arranged on the same layer.
7. The display panel according to claim 1, characterized in that:
the grooves comprise a first groove extending along a first direction and a second groove extending along a second direction;
the extending direction of the bridging bridge is vertical to the extending direction of the first groove/the second groove;
wherein the first direction is perpendicular to the second direction.
8. A display device, characterized in that it comprises:
the display panel of any one of claims 1-7.
9. An electronic device, comprising:
the display device of claim 7.
10. A method for manufacturing a display panel according to claims 1-7, comprising the steps of:
preparing a TFT substrate, and forming a plurality of grooves on the TFT substrate;
preparing the plurality of bridging bridges on the TFT substrate;
a pixel defining layer, an electroluminescent device layer, and an encapsulation layer are sequentially prepared.
11. The method for manufacturing a display panel according to claim 10, wherein: the step of preparing the plurality of bridging bridges on the TFT substrate includes:
preparing a second adhesive layer on the TFT substrate, and forming a bearing part of the lapping bridge at the groove;
preparing a first adhesive layer on one side of the supporting part, which is far away from the TFT substrate;
and removing the bearing part to form the overlap bridge.
12. The method for manufacturing a display panel according to claim 11, wherein:
the first glue layer is a negative photoresist;
the second glue layer is positive photoresist.
13. The method for manufacturing a display panel according to claim 11, wherein:
the supporting part is parallel/non-parallel to the TFT substrate.
Technical Field
The present disclosure relates to the field of display device technologies, and in particular, to a display panel, a display device, an electronic apparatus, and a manufacturing method.
Background
With the development of display technology, in the field of wearable display, a rigid screen no longer meets the requirements, and a stretchable display screen comes along with the development; the stretchable display panel is stretchable by using stress in the opening area, and connection between the island areas is realized by routing in the bridge area.
However, more routing wires in the bridge area occupy a larger space of the display panel, which causes a relatively smaller arrangement space for pixels on the display panel, thereby resulting in a lower resolution of the display panel and failing to meet higher requirements.
Disclosure of Invention
The embodiment of the application provides a display panel, a display device, electronic equipment and a preparation method, and aims to solve the problems that the original bridge area wiring of the existing stretchable display screen occupies more display panel space, so that the pixel arrangement space is small, the resolution ratio of the display panel is low, and the higher requirement cannot be met.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
a first aspect of the present application provides a display panel comprising a TFT substrate, a pixel defining layer, an electroluminescent device layer, and an encapsulation layer, which are sequentially stacked,
a plurality of grooves are formed in the TFT substrate in the direction away from the pixel defining layer from one side of the TFT substrate facing the pixel defining layer, the TFT substrate is divided into a plurality of sub-display areas which are spaced from each other by the grooves, and each sub-display area contains at least one sub-pixel;
still include a plurality of overlap joint bridges, the overlap joint bridge is taken on the recess, just the both ends of overlap joint bridge are connected respectively the recess both sides sub-display area for the adjacent sub-pixel of recess both sides provides the wiring passageway.
In some variations of the first aspect of the present application, the display panel described above, wherein the bridge is made of an elastic material.
In some modified embodiments of the first aspect of the present application, in the display panel, the bridge includes at least a first glue layer;
the first glue film comprises an overlapping portion and a suspension portion, the suspension portion corresponds to the groove, two ends of the suspension portion are respectively connected with the overlapping portion, and the overlapping portion is respectively connected to the sub-display areas on two sides of the groove.
In some modified embodiments of the first aspect of the present application, in the display panel, the suspension portion is disposed in parallel to the TFT substrate.
In some modified embodiments of the first aspect of the present application, in the display panel described above, the suspension is disposed non-parallel to the TFT substrate.
In some modified embodiments of the first aspect of the present application, the display panel further includes an interlayer dielectric layer disposed between the TFT substrate and the pixel defining layer;
the lap joint bridge also comprises a second adhesive layer;
the second adhesive layer is arranged between the TFT substrate and the first adhesive layer, and the second adhesive layer is arranged corresponding to the lap joint part;
the second adhesive layer and the interlayer dielectric layer are arranged on the same layer.
In some modified embodiments of the first aspect of the present application, the display panel described above, wherein the groove includes a first groove extending along a first direction and a second groove extending along a second direction;
the extending direction of the bridging bridge is vertical to the extending direction of the first groove/the second groove;
wherein the first direction is perpendicular to the second direction.
A second aspect of the present application provides a display device including the above display panel.
A third aspect of the present application provides an electronic apparatus including the display device described above.
A fourth aspect of the present application provides a method for manufacturing a display panel, which includes the following steps:
preparing a TFT substrate, and forming a plurality of grooves on the TFT substrate;
preparing the plurality of bridging bridges on the TFT substrate;
a pixel defining layer, an electroluminescent device layer, and an encapsulation layer are sequentially prepared.
In some variations of the fourth aspect of the present application, the step of fabricating the plurality of bridge connections on the TFT substrate includes:
preparing a second adhesive layer on the TFT substrate, and forming a bearing part of the lapping bridge at the groove;
preparing a first adhesive layer on one side of the supporting part, which is far away from the TFT substrate;
and removing the bearing part to form the overlap bridge.
In some variations of the fourth aspect of the present application, wherein the first glue layer is a negative photoresist;
the second glue layer is positive photoresist.
In some variations of the fourth aspect of the present application, the support is parallel/non-parallel to the TFT substrate.
Compared with the prior art, the display panel provided by the first aspect of the application has the advantages that the lap-joint bridge is bridged on the groove of the TFT substrate, and the two ends of the lap-joint bridge are respectively connected with the sub-display areas on the two sides of the groove, so that the groove is directly crossed, wiring is carried out to connect the adjacent sub-pixels on the two sides of the groove, the sub-pixels are arranged at the original bridge area, and the resolution of the display panel is improved; therefore, the problems that the original bridge area routing of the conventional stretchable display screen occupies more display panel space, so that the pixel arrangement space is small, the resolution of the display panel is low, and the high requirement cannot be met are effectively solved; the display panel provided by the application increases the wiring position at the groove, reduces wiring and increases sub-pixels in the original bridge area, and can effectively improve the resolution of the display panel.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically illustrates a schematic diagram of a display panel provided in an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view taken along line B-B of area A of FIG. 1;
FIG. 3 is a schematic diagram illustrating a first portion of a display panel manufacturing process according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating a second portion of a display panel manufacturing process according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram illustrating a third part of a display panel manufacturing process according to an embodiment of the present disclosure;
fig. 6 schematically illustrates a structural diagram of a supporting part in a display panel preparation process according to an embodiment of the present application;
fig. 7 schematically illustrates an intermediate structure of a first adhesive layer prepared in a display panel preparation process according to an embodiment of the present application;
fig. 8 schematically illustrates a structural diagram of a first adhesive layer in a display panel preparation process provided by an embodiment of the present application;
fig. 9 schematically illustrates another structural diagram of a supporting part in a display panel manufacturing process according to an embodiment of the present application;
fig. 10 schematically illustrates another structural diagram of the first adhesive layer in the process of manufacturing a display panel according to an embodiment of the present application;
fig. 11 schematically illustrates a flow chart of a method for manufacturing a display panel according to an embodiment of the present application;
fig. 12 schematically illustrates a flow chart of manufacturing a bridge in a display panel manufacturing method according to an embodiment of the present application;
the reference numbers illustrate: the liquid crystal display device comprises a
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
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