CN112817489A - Touch substrate and display device - Google Patents
Touch substrate and display device Download PDFInfo
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- CN112817489A CN112817489A CN202110250357.5A CN202110250357A CN112817489A CN 112817489 A CN112817489 A CN 112817489A CN 202110250357 A CN202110250357 A CN 202110250357A CN 112817489 A CN112817489 A CN 112817489A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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Abstract
本申请提供了一种触控基板及显示装置，该触控基板包括：基底、第一压印层和第二压印层；第一压印层位于基底的一侧，第一压印槽内容置有第一电极层和第一黑化层；第二压印层位于基底的另一侧，包括多个第二压印槽，第二压印槽的宽度由第二压印层远离基底一侧向靠近基底一侧的方向逐渐增大，第二压印槽内容置有第二电极层和第二黑化层；或者，第二压印层包括第一子压印层和第二子压印层，第一子压印层位于基底的另一侧；第二子压印层位于第一子压印层靠近第一压印层的一侧。本申请通过对压印槽的结构改进或者将黑化层与电极层分开填充，使得压印槽内可以填充更多的电极层，从而解决了基底底部电极层容易断开的问题，进而提升了产品良率。
The present application provides a touch substrate and a display device. The touch substrate includes: a base, a first imprint layer and a second imprint layer; the first imprint layer is located on one side of the base, and the content of the first imprint groove A first electrode layer and a first blackening layer are arranged; the second imprinting layer is located on the other side of the substrate, and includes a plurality of second imprinting grooves, and the width of the second imprinting grooves is determined by the distance between the second imprinting layer and the substrate. The direction of the side close to the side of the substrate gradually increases, and the second imprinting groove accommodates the second electrode layer and the second blackening layer; or, the second imprinting layer includes the first sub-imprinting layer and the second sub-imprinting layer. The first sub-imprint layer is located on the other side of the substrate; the second sub-imprint layer is located on the side of the first sub-imprint layer close to the first imprint layer. In the present application, by improving the structure of the imprinting groove or filling the blackened layer and the electrode layer separately, more electrode layers can be filled in the imprinting groove, thereby solving the problem of easy disconnection of the electrode layer at the bottom of the substrate, thereby improving the Product yield.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch substrate and a display device.
Background
In order to satisfy better interactivity between users and electronic products, touch substrates have become indispensable components of electronic products. With the development of high resolution and thin display screens, the touch substrate is required to have better optical characteristics.
The electrode layer of the touch substrate can be formed by stamping a substrate (such as UV glue) to form a stamping groove and filling an electrode material in the stamping groove. Since the electrode material has a high reflectance, it is necessary to blacken the electrode material to reduce the reflectance.
The inventor finds that when the electrode layer of the bottom layer of the touch substrate is manufactured, the blackened layer is required to be filled in the stamping groove of the bottom layer, and then the electrode material is required to be filled in the stamping groove, so that the stamping groove is easily filled with the blackened layer in the narrow stamping groove, the electrode material is less filled, and the problem of electrode material disconnection is easily caused.
Disclosure of Invention
The application provides a touch substrate and a display device aiming at the defects of the existing mode, and aims to solve the problem that the electrode is easily disconnected due to insufficient filling of a bottom electrode layer in the existing touch substrate.
In a first aspect, an embodiment of the present application provides a touch substrate, including: a substrate, a first imprinting layer, and a second imprinting layer; the first embossing layer is positioned on one side of the substrate and comprises a plurality of first embossing grooves, a first electrode layer and a first blackening layer are arranged in each first embossing groove, and the first blackening layer is positioned on one side, far away from the substrate, of the first electrode layer;
the second imprinting layer is positioned on the other side of the substrate and comprises a plurality of second imprinting grooves, the width of each second imprinting groove is gradually increased from one side, away from the substrate, of the second imprinting layer to the side, close to the substrate, of the second imprinting layer, a second electrode layer and a second blackening layer are arranged in each second imprinting groove, and the second blackening layer is positioned on one side, close to the substrate, of the second electrode layer; or the second imprinting layer comprises a first sub-imprinting layer and a second sub-imprinting layer, the first sub-imprinting layer is positioned on the other side of the substrate and comprises a plurality of third imprinting grooves, and a second electrode layer is arranged in each third imprinting groove; the second sub-imprinting layer is positioned on one side, close to the first imprinting layer, of the first sub-imprinting layer and comprises a plurality of fourth imprinting grooves, a second blackening layer is arranged in each fourth imprinting groove, and the orthographic projection of the second electrode layer on the first imprinting layer is positioned in the orthographic projection of the second blackening layer on the first imprinting layer.
Optionally, a cross-sectional shape of the second embossed groove along a direction perpendicular to the length extension direction is an inverted trapezoid or a trumpet shape.
Optionally, the second sub-imprint layer is located between the substrate and the first imprint layer; alternatively, the second sub-imprint layer is located on a side of the first imprint layer remote from the substrate.
Optionally, the second sub-embossed layer is located between the substrate and the first sub-embossed layer.
Optionally, an orthographic projection of the second electrode layer on the first imprinting layer coincides with an orthographic projection of the second blackening layer on the first imprinting layer.
Optionally, the thicknesses of the first sub-imprinting layer and the second sub-imprinting layer in the direction perpendicular to the substrate are both 3-5 micrometers; and/or the thickness of the first imprinting layer is 3-8 microns.
Optionally, the material of the first and second imprinting layers comprises at least UV glue; and/or the materials of the first blackening layer and the second blackening layer at least comprise black ink.
Optionally, the orthographic projection of the first electrode layer on the substrate and the orthographic projection of the second electrode layer on the substrate are both in a grid pattern and are arranged in a staggered manner.
Optionally, a first protective layer is arranged on one side of the first imprinting layer away from the second imprinting layer; and/or a second protective layer is arranged on one side, far away from the first imprinting layer, of the second imprinting layer.
In a second aspect, an embodiment of the present application further provides a display device, including the touch substrate described in the first aspect.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application at least comprise:
the touch substrate provided by the embodiment of the application improves the structure of the second imprinting groove in a shape-advancing mode, so that the width of the second imprinting groove is gradually increased from one side, away from the substrate, of the second imprinting layer to the direction close to one side of the substrate, and more second electrode layers can be filled in the second imprinting groove under the condition that the width of one side, away from the substrate, of the second imprinting groove is the same, so that the problem that the electrode is disconnected easily due to the fact that the filling amount of the second electrode layers at the bottom of the substrate is small is solved, and the product yield of the touch substrate is improved.
In the touch substrate provided by the embodiment of the application, because the second imprinting layer is composed of the independent first sub-imprinting layer and the independent second sub-imprinting layer, and the imprinting grooves corresponding to the first sub-imprinting layer and the second sub-imprinting layer can be respectively filled with the second electrode layer and the second blackening layer, because the second electrode layer is separately filled in the third imprinting groove corresponding to the first sub-imprinting layer, the influence of the filling of the second blackening layer can not be received, so that more second electrode layers can be filled in the second imprinting groove, the problem that the electrode is disconnected easily due to the fact that the filling amount of the second electrode layer at the bottom of the substrate is small is solved, and the product yield of the touch substrate is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of an internal structure of a touch substrate according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a first imprinting layer of a touch substrate according to an embodiment of the present disclosure;
fig. 3 is a schematic view of an internal structure of another touch substrate according to an embodiment of the present disclosure;
fig. 4 is a schematic view of an internal structure of another touch substrate according to an embodiment of the present disclosure;
fig. 5 is a schematic view of an internal structure of another touch substrate according to an embodiment of the present disclosure.
Wherein:
100-a substrate;
200-a first imprinting layer; 210-a first impression groove; 220-a first electrode layer; 230-a first blackened layer;
300-a second imprinting layer; 310-a second impression tray; 320-a second electrode layer; 330-a second blackened layer;
300 a-a first sub-imprint layer; 310 a-a third impression groove;
300 b-a second sub-imprint layer; 310 b-a fourth impression groove;
400-a first protective layer;
500-second protective layer.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
Currently, a conductive layer of a touch substrate is manufactured by stamping a substrate (e.g., UV paste) to form a stamping groove and filling an electrode material in the stamping groove. Since the electrode material has a high reflectance, it is necessary to blacken the electrode material to reduce the reflectance.
The inventor finds that when the electrode layer of the bottom layer of the touch substrate is manufactured, the blackened layer needs to be filled in the stamping groove of the bottom layer, and then the electrode material needs to be filled in the blackened layer. However, in order to satisfy the requirement of high transmittance, it is necessary to reduce the electrode width of the electrode layer (the width of the corresponding embossed groove is also reduced), so that the embossed groove can be easily filled after the blackening layer is filled in the narrow embossed groove, and thus the electrode material is less filled, and the problem of electrode material breakage is likely to occur.
The embodiment of the application provides a touch substrate and a display device, and aims to overcome the defects in the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
As shown in fig. 1, an embodiment of the present application provides a touch substrate, including: a substrate 100, a first imprint layer 200, and a second imprint layer 300. Wherein the first imprint layer 200 is located on one side of the substrate 100 (illustrated in fig. 1 as being above the substrate 100) and the second imprint layer 300 is located on the other side of the substrate 100 (illustrated in fig. 1 as being below the substrate 100).
Specifically, as shown in fig. 2, the first imprinting layer 200 includes a plurality of first imprinting grooves 210, and the plurality of first imprinting grooves 210 are connected to form a grid-shaped trench. The first imprinting groove 210 contains a first electrode layer 220 and a first blackening layer 230, and the first blackening layer 230 is located on a side of the first electrode layer 220 away from the substrate 100.
Further, the second imprinting layer 300 includes a plurality of second imprinting grooves 310, and the plurality of second imprinting grooves 310 are connected to form a grid-shaped trench (refer to the structure of the first imprinting layer 200). Since the width of the second imprinting groove 310 gradually increases from the side of the second imprinting layer 300 away from the substrate 100 to the side close to the substrate 100, the second electrode layer 320 and the second blackening layer 330 are disposed in the second imprinting groove 310, and the second blackening layer 330 is disposed on the side of the second electrode layer 320 close to the substrate 100, in the case that the widths of the sides of the second imprinting groove 310 away from the substrate 100 are the same, even if the second blackening layer 330 is filled in the second imprinting groove 310 in advance, more second electrode layers 320 can be filled in the second imprinting groove 310.
It can be understood that, in the touch substrate provided in the embodiments of the present application, the first electrode layer 220 and the second electrode layer 320 are disposed at an interval to form a touch capacitor.
Optionally, the touch substrate in the above embodiment may be prepared by the following steps:
first, a substrate 100 is provided. The substrate 100 is typically a material such as Polyethylene Terephthalate (PET), Cyclic Olefin Polymer (COP), or Polyimide (PI), and the thickness of the substrate 100 is generally between 25 micrometers and 100 micrometers, inclusive.
Then, a first imprinting layer 200 having a first imprinting groove 210 is formed on the upper surface of the substrate 100, and a first electrode layer 220 and a first blackening layer 230 are sequentially formed into the first imprinting groove 210. The first imprinting layer 200 has a thickness of between 3 and 8 microns, inclusive, 3 and 8 microns.
Next, a second imprinting layer 300 having second imprinting grooves 310 is formed on a side of the substrate 100 remote from the first imprinting layer 200, wherein a thickness of the second imprinting layer 300 is between 3 and 8 micrometers, inclusive. The second blackening layer 330 is filled in the second imprinting groove 310 first, and then the second electrode layer 320 is refilled. Since the width of the second imprinting groove 310 gradually increases from the side of the second imprinting layer 300 away from the substrate 100 to the side close to the substrate 100, the filling amount of the second electrode layer 320 is increased.
In the touch substrate provided by this embodiment, the structure of the second imprinting groove 310 is improved, so that the width of the second imprinting groove 310 is gradually increased from the side of the second imprinting layer 300 away from the substrate 100 to the side close to the substrate 100, and under the condition that the width of the side of the second imprinting groove 310 away from the substrate 100 is the same, more second electrode layers 320 can be filled in the second imprinting groove 310, thereby solving the problem that the electrodes are easily disconnected due to the small filling amount of the second electrode layers 320 at the bottom of the substrate, and further improving the product yield of the touch substrate.
Alternatively, the cross-sectional shape of the second embossed groove 310 in the direction perpendicular to the lengthwise extension direction is an inverted trapezoid or a trumpet shape, that is, the width of the notch of the second embossed groove 310 is smaller than the width near the bottom of the groove, and the width of the second embossed groove 310 is gradually changed to facilitate the filling of the conductive material and the blackened material. In fig. 1, the cross-sectional shape of the second embossed groove 310 in the direction perpendicular to the longitudinal extension direction is illustrated as an inverted trapezoid.
In other optional embodiments, as shown in fig. 3 to 5, an embodiment of the present application provides a touch substrate, including: a substrate 100, a first imprint layer 200, and a second imprint layer 300. The second imprint layer 300 includes a first sub-imprint 300a layer and a second sub-imprint 300b layer, i.e., the second imprint layer 300 is divided into two sub-imprint layers (a first sub-imprint 300a layer and a second sub-imprint 300b layer) for imprinting, and the corresponding film layer structures are filled.
Specifically, the first sub-imprint 300a layer is located on the other side of the substrate 100 (illustrated as the bottom of the substrate 100 in fig. 3 and 4), and the first sub-imprint 300a layer includes a plurality of third imprint grooves 310a, and the plurality of third imprint grooves 310a are connected into a whole to form a grid-shaped groove. The second electrode layer 320 is received in the third imprinting groove 310 a. The second sub-imprint 300b layer is located on the side of the first sub-imprint 300a layer adjacent to the first imprint layer 200, the second sub-imprint 300b layer including a plurality of fourth imprint trenches 310b, the plurality of fourth imprint trenches 310b being connected together to form a grid-like trench. The second blackening layer 330 is disposed in the fourth imprinting groove 310b, and the orthographic projection of the second electrode layer 320 on the first imprinting layer 200 is located in the orthographic projection of the second blackening layer 330 on the first imprinting layer 200, so that the second blackening layer 330 can shield the second electrode layer 320, and the reflectivity of the second electrode layer 320 is reduced.
It can be understood that, in the touch substrate provided in the embodiments of the present application, the first electrode layer 220 and the second electrode layer 320 are disposed at an interval to form a touch capacitor.
In the touch substrate provided by this embodiment, the second imprinting layer 300 is composed of the first sub-imprinting 300a layer and the second sub-imprinting 300b layer, and the imprinting grooves corresponding to the first sub-imprinting 300a layer and the second sub-imprinting 300b layer can be respectively filled with the second electrode layer 320 and the second blackening layer 330, and the second electrode layer 320 is separately filled in the third imprinting groove 310a corresponding to the first sub-imprinting 300a layer and is not affected by the filling of the second blackening layer 330, so that more second electrode layers 320 can be filled in the second imprinting groove 310, and thus the problem that the second electrode layer 320 at the bottom of the substrate is less in filling amount and the electrode is easily disconnected is solved, and the product yield of the touch substrate is improved.
In some embodiments, the second sub-imprint 300b layer being located on the side of the first sub-imprint 300a layer adjacent to the first imprint layer 200 may include several possible implementations:
optionally, with continued reference to fig. 3, the second imprint layer 300 of fig. 3 includes a first sub-imprint 300a layer and a second sub-imprint 300b layer, and the second sub-imprint 300b layer is located between the substrate 100 and the first imprint layer 200, i.e., the first sub-imprint 300a layer, the substrate 100, the second sub-imprint 300b layer, and the first imprint layer 200 are arranged in a stack. Specifically, in the present embodiment, the second blackening layer 330 and the second electrode layer 320 are respectively filled on two sides of the substrate 100, so that the second blackening layer 330 on the bottom of the substrate 100 is transferred to the top of the substrate 100, and the problem that the second electrode layer 320 is easily disconnected due to a small filling amount after the bottom blackening process is solved.
Optionally, the touch substrate in the above embodiment may be prepared by the following steps:
first, a substrate 100 is provided. Substrate 100 is typically a PET, COP, or PI material, and substrate 100 typically has a thickness of between 25 microns and 100 microns, inclusive.
Then, a second sub-imprint 300b layer having a fourth imprint groove 310b is formed on the upper surface of the substrate 100, and a second blackening layer 330 is filled in the fourth imprint groove 310 b. The thickness of the second sub-imprint 300b layer is between 3 and 5 microns, inclusive of 3 and 5 microns.
Next, a first imprint layer 200 having a first imprint trench 210 is formed on a side of the second sub-imprint 300b layer away from the substrate 100, and a first electrode layer 220 and a first blackening layer 230 are sequentially formed in the first imprint trench 210. The first imprinting layer 200 has a thickness of between 3 and 8 microns, inclusive, 3 and 8 microns.
Next, a second sub-imprint 300b layer with third imprint trenches 310a is formed on the side of the substrate 100 remote from the second sub-imprint 300b layer, the thickness of the second sub-imprint 300b layer being between 3 and 5 micrometers, inclusive. After the third imprinting grooves 310a are formed, the second electrode layer 320 is filled in the third imprinting grooves 310a, so as to form a touch capacitor with the first electrode layer 220.
In the touch substrate provided by this embodiment, the second imprinting layer 300 is composed of the first sub-imprinting 300a layer and the second sub-imprinting 300b layer, and the imprinting grooves corresponding to the first sub-imprinting 300a layer and the second sub-imprinting 300b layer can be respectively filled with the second electrode layer 320 and the second blackening layer 330, and the second electrode layer 320 is separately filled in the third imprinting groove 310a corresponding to the first sub-imprinting 300a layer and is not affected by the filling of the second blackening layer 330, so that more second electrode layers 320 can be filled in the second imprinting groove 310, and thus the problem that the second electrode layer 320 at the bottom of the substrate is less in filling amount and the electrode is easily disconnected is solved, and the product yield of the touch substrate is improved.
Alternatively, as shown in fig. 4, in contrast to the arrangement in fig. 3, the second sub-imprint 300b layer in fig. 4 is located between the substrate 100 and the first sub-imprint 300a layer, i.e. the first sub-imprint 300a layer, the second sub-imprint 300b layer, the substrate 100 and the first imprint layer 200 are arranged one above the other. Specifically, in the present embodiment, the second blackening layer 330 and the second electrode layer 320 are respectively filled on one side (bottom) of the substrate 100, so that the problem that the second electrode layer 320 is easily broken due to a small filling amount after the bottom blackening process of the substrate 100 is solved.
Optionally, the touch substrate in the above embodiment may be prepared by the following steps:
first, a substrate 100 is provided. Substrate 100 is typically a PET, COP, or PI material, and substrate 100 typically has a thickness of between 25 microns and 100 microns, inclusive.
Then, a second sub-imprint 300b layer having a fourth imprint groove 310b is formed on the upper surface of the substrate 100, and the second blackening layer 330 is filled in the fourth imprint groove 310 b. The thickness of the second sub-imprint 300b layer is between 3 and 5 microns, inclusive of 3 and 5 microns.
Next, a first imprint layer 200 having a first imprint trench 210 is formed on a side of the second sub-imprint 300b layer away from the substrate 100, and a first electrode layer 220 and a first blackening layer 230 are sequentially formed in the first imprint trench 210. The first imprinting layer 200 has a thickness of between 3 and 8 microns, inclusive, 3 and 8 microns.
Next, a second sub-imprint 300b layer with third imprint trenches 310a is formed on the side of the substrate 100 remote from the second sub-imprint 300b layer, the thickness of the second sub-imprint 300b layer being between 3 and 5 micrometers, inclusive. The second electrode layer 320 is filled into the third imprinting groove 310 a.
In the touch substrate provided by this embodiment, the second imprinting layer 300 is composed of the first sub-imprinting 300a layer and the second sub-imprinting 300b layer, and the imprinting grooves corresponding to the first sub-imprinting 300a layer and the second sub-imprinting 300b layer can be respectively filled with the second electrode layer 320 and the second blackening layer 330, and the second electrode layer 320 is separately filled in the third imprinting groove 310a corresponding to the first sub-imprinting 300a layer and is not affected by the filling of the second blackening layer 330, so that more second electrode layers 320 can be filled in the second imprinting groove 310, and thus the problem that the second electrode layer 320 at the bottom of the substrate is less in filling amount and the electrode is easily disconnected is solved, and the product yield of the touch substrate is improved.
Optionally, as shown in fig. 5, the second sub-imprint 300b layer in the embodiment of the present application may also be located on a side of the first imprint layer 200 away from the substrate 100, that is, the first sub-imprint 300a layer, the substrate 100, the first imprint layer 200, and the second sub-imprint 300b layer are stacked. Specifically, in the present embodiment, the second blackening layer 330 and the second electrode layer 320 are respectively filled on two sides of the first imprinting layer 200, so that the problem that the substrate 100 is easily broken due to a small filling amount of the second electrode layer 320 after the bottom blackening process in the prior art is solved. The method for manufacturing the structure corresponding to fig. 5 is not described in detail here.
In the touch substrate provided by this embodiment, the second imprinting layer 300 is composed of the first sub-imprinting 300a layer and the second sub-imprinting 300b layer, and the imprinting grooves corresponding to the first sub-imprinting 300a layer and the second sub-imprinting 300b layer can be respectively filled with the second electrode layer 320 and the second blackening layer 330, and the second electrode layer 320 is separately filled in the third imprinting groove 310a corresponding to the first sub-imprinting 300a layer and is not affected by the filling of the second blackening layer 330, so that more second electrode layers 320 can be filled in the second imprinting groove 310, and thus the problem that the second electrode layer 320 at the bottom of the substrate is less in filling amount and the electrode is easily disconnected is solved, and the product yield of the touch substrate is improved.
Optionally, as shown in fig. 3 to fig. 5, an orthographic projection of the second electrode layer 320 on the first imprinting layer 200 coincides with an orthographic projection of the second blackening layer 330 on the first imprinting layer 200, and on the premise that the second blackening layer 330 can shield the second electrode layer 320, the width of the second blackening layer 330 is reduced as much as possible, so that a larger opening area is reserved, which is beneficial to improving display brightness.
Alternatively, with continued reference to fig. 1, 3, 4, and 5, the material of the first imprinting layer 200 and the second imprinting layer 300 in the embodiments of the present application may be a UV glue, and the UV glue may be imprinted by an imprinting template to form corresponding imprinting grooves. For example: an imprint template is used for the first imprint layer 200 to form a first imprint trench 210, and the structure of the first imprint trench 210 can be referred to fig. 2.
Alternatively, with continued reference to fig. 1, 3 and 4, the materials of the first blackened layer 230 and the second blackened layer 330 may be black ink to ensure the light shielding effect.
Optionally, with continued reference to fig. 1, 3, 4, and 5, since the orthographic projections of the first and second imprinting grooves 210 and 310 on the substrate 100 are both grid patterns, correspondingly, the orthographic projection of the first electrode layer 220 on the substrate 100 and the orthographic projection of the second electrode layer 320 on the substrate 100 are also both grid patterns. In addition, as can be seen from fig. 1, an orthogonal projection of the first electrode layer 220 on the substrate 100 and an orthogonal projection of the second electrode layer 320 on the substrate 100 are arranged in a staggered manner, so as to improve the touch sensitivity.
Optionally, with continued reference to fig. 1, 3, 4, and 5, a first protection layer 400 is disposed on a side of the first imprinting layer 200 away from the second imprinting layer 300, where the first protection layer 400 is made of an insulating material.
Optionally, with continued reference to fig. 1, 3, 4, and 5, a second protective layer 500 is disposed on a side of the second imprinting layer 300 away from the first imprinting layer 200, and the second protective layer 500 is also made of an insulating material.
Based on the same inventive concept, an embodiment of the present application provides a display device, including the touch substrate and the display substrate described in the embodiment of the present application. The display device in this embodiment is a touch display device, that is, the touch display device is formed by assembling a touch substrate and a display substrate. The touch display device in this embodiment includes, but is not limited to, a mobile phone and a tablet computer.
The display device provided by the embodiment of the application comprises the touch substrate in the embodiment, the structure of the second imprinting groove in the touch substrate is improved, so that the width of the second imprinting groove is gradually increased from the side, away from the substrate, of the second imprinting layer to the side, close to the substrate, of the second imprinting groove, and under the condition that the width of the side, away from the substrate, of the second imprinting groove is the same, more second electrode layers can be filled in the second imprinting groove, and therefore the problem that the electrodes are easily disconnected due to the fact that the filling amount of the second electrode layers at the bottom of the substrate is small is solved, and the product yield of the touch substrate is improved; or, divide into independent first sub-impression layer and second sub-impression layer with touch substrate's second impression layer, because the impression groove that first sub-impression layer and second sub-impression layer correspond can fill second electrode layer and second blackened layer respectively, the second electrode layer is filled alone in the third impression groove that first sub-impression layer corresponds, can not receive the influence that the second blackened layer was filled, make can fill more second electrode layers in the second impression groove, thereby the problem that the second electrode layer filling amount of having solved the base plate bottom is few and electrode disconnection appears easily, and then the product yield of touch substrate has been promoted.
The embodiments of the application have at least the following technical effects:
1. in the touch substrate provided by this embodiment, the structure of the second imprinting groove is improved, so that the width of the second imprinting groove is gradually increased from the side of the second imprinting layer away from the substrate to the side close to the substrate, and under the condition that the width of the side of the second imprinting groove away from the substrate is the same, more second electrode layers can be filled in the second imprinting groove, thereby solving the problem that the electrode is easily disconnected due to the small filling amount of the second electrode layer at the bottom of the substrate, and further improving the product yield of the touch substrate.
2. In the touch substrate provided by this embodiment, because the second imprinting layer is composed of the first sub-imprinting layer and the second sub-imprinting layer, and the imprinting grooves corresponding to the first sub-imprinting layer and the second sub-imprinting layer can be filled with the second electrode layer and the second blackening layer respectively, because the second electrode layer is filled in the third imprinting groove corresponding to the first sub-imprinting layer independently, the influence of the filling of the second blackening layer is not received, so that more second electrode layers can be filled in the second imprinting groove, thereby solving the problem that the second electrode layer at the bottom of the substrate is low in filling amount and the electrode is easily disconnected, and further improving the product yield of the touch substrate.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
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