CN113552755B - Segment code display substrate, manufacturing method thereof, liquid crystal display device and electronic paper display device - Google Patents
Segment code display substrate, manufacturing method thereof, liquid crystal display device and electronic paper display device Download PDFInfo
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- CN113552755B CN113552755B CN202110752946.3A CN202110752946A CN113552755B CN 113552755 B CN113552755 B CN 113552755B CN 202110752946 A CN202110752946 A CN 202110752946A CN 113552755 B CN113552755 B CN 113552755B
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1676—Electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
- G02F1/1681—Gaskets; Spacers; Sealing of cells; Filling or closing of cells having two or more microcells partitioned by walls, e.g. of microcup type
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geometry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to the technical field of display screens, and discloses a segment code display substrate, a manufacturing method thereof, a liquid crystal display device and an electronic paper display device, wherein the segment code display substrate comprises: a first substrate; the circuit layer is arranged on the first substrate and comprises at least one display electrode and a driving electrode which is correspondingly connected, the driving electrode comprises a connecting part and a leading-out part which are electrically connected, and the connecting part is electrically connected with the display electrode; a second substrate disposed opposite to the first substrate; a display medium disposed between the first substrate and the second substrate; the isolating frame matrix is arranged on the first substrate, is made of insulating materials and comprises a plurality of isolating frames distributed in an array, an accommodating space for filling display media is formed in the isolating frames, and the isolating frames cover the leading-out portions and expose the connecting portions. The segment code display substrate optimizes the preparation process and reduces the material and production cost.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a segment code display substrate, a manufacturing method thereof, a liquid crystal display device, and an electronic paper display device.
Background
The current segment code display technology has tended to be mature, and expands from a liquid crystal display mode to an electronic paper (Electrophoresis Display, EPD) display mode, and the basic principle is as follows: and preparing a driving electrode and a display electrode module (called a driving display module for short), and generating an induction electric field with the EPD public electrode to drive the plasma particles so as to realize the display effect. Segment code products on the market are divided into three types according to different structures of the drive display modules: single layer segment code products, two layer segment code products and three layer segment code products.
In the existing three-layer segment code product, the first layer is a driving electrode layer and is used for manufacturing a driving electrode; the second layer is an insulating layer, covers the driving electrode and conducts the display electrode through the opening; the third layer is a display electrode (three layers for short for driving display), and generates an induction electric field with the EPD public electrode to drive the electronic ink, so that the product preparation process is complex and the cost is high; in addition, the existing plasma particles are packaged in the capsule membrane, the preparation process is complex, the production waste is easy to cause, the yield is reduced, the manufacturing cost of the plasma particles can occupy more than 50% of the whole manufacturing cost of the segment code product, and the production cost is high.
Disclosure of Invention
In view of the above, the present invention provides a segment code display substrate, a manufacturing method thereof, a liquid crystal display device and an electronic paper display device, so as to solve the problems of complex process and high production cost of the segment code product in the prior art.
In a first aspect, an embodiment of the present invention provides a segment code display substrate, including:
a first substrate;
the circuit layer is arranged on the first substrate and comprises at least one display electrode and a driving electrode which is correspondingly connected, the driving electrode comprises a connecting part and a leading-out part which are electrically connected, and the connecting part is electrically connected with the display electrode;
a second substrate disposed opposite to the first substrate;
a display medium disposed between the first substrate and the second substrate;
the isolating frame matrix is arranged on the first substrate, is made of insulating materials and comprises a plurality of isolating frames distributed in an array, an accommodating space for filling display media is formed in the isolating frames, and the isolating frames cover the leading-out portions and expose the connecting portions.
According to the segment code display substrate, the insulating isolation frame is added on the leading-out part of the driving electrode to shield the induction action of the driving electrode on the display medium, and the connection part is exposed by the isolation frame, so that the electric communication between the driving electrode and the display electrode can be ensured; because the array distributed separation frame forms a plurality of accommodation spaces for filling display media between the first substrate and the second substrate, expensive electronic capsule films can be avoided, good display effects are guaranteed, the preparation process is optimized, the yield of products is improved, the materials and the production cost are reduced, and the problems that the existing section code product preparation process is complex and the production cost is high are effectively solved.
In an embodiment, the isolation frame includes a plurality of side walls, each of the side walls is connected to the first substrate and forms the accommodating space together with the first substrate, one side wall is shared between adjacent isolation frames, and the side walls cover the lead-out portion. Therefore, the side wall can be used as an insulating layer of the drive electrode leading-out part so as to weaken the induction of the electric field of the drive electrode on the display medium and improve the display effect; the side walls can also realize the storage and isolation functions of the display medium and can also serve as a thickness supporting layer of the display medium, so that the product quality of the segment code display substrate is improved.
In an embodiment, the circuit layer includes a plurality of display electrodes and a plurality of driving electrodes, each of the driving electrodes includes the connection portion and the extraction portion electrically connected, and each of the driving electrodes is electrically connected to the corresponding display electrode through the connection portion;
at least one display electrode covers the leading-out part of the driving electrode corresponding to the other display electrode, and insulation setting is realized through the side wall. Therefore, the lead-out part of any driving electrode is not electrically communicated with other display electrodes, and the independent display of the display electrodes can be realized, so that the display target image is accurately controlled.
In an embodiment, along a direction parallel to the first substrate, a distance between adjacent side walls is larger than a width of the connecting portion; or alternatively, the first and second heat exchangers may be,
the connecting portion comprises a protrusion, and the width of the protrusion is larger than that of the side wall. Thus, the side wall cannot cover the connecting part of the driving electrode, and the whole connecting part can be exposed in the isolating frame; or the side wall cannot completely cover the connection portion of the driving electrode, and the protrusion on the connection portion may be exposed in the barrier frame to be subsequently electrically connected with the display electrode.
In an embodiment, the width of the sidewall is greater than the width of the lead-out portion along a direction parallel to the first substrate. Thus, the side wall can completely cover the drive electrode leading-out part, and the induction action of the drive electrode on the display medium is shielded.
In one embodiment, the separation frame matrix is inorganic, and the separation frame matrix is manufactured by a mask method deposition, screen printing or a method of first deposition and then mask dry etching; or alternatively, the first and second heat exchangers may be,
the separation frame matrix is an organic matter and is formed by exposure and development or organic gel silk printing. Therefore, the materials and the preparation method of the isolation frame matrix are diversified, the independent selection can be carried out according to the actual use condition, and the preparation method has mature process and can improve the quality of the finished product of the isolation frame matrix.
In an embodiment, at least one of the first substrate and the second substrate is a glass plate or a flexible plate. Therefore, the segment code display substrate can adapt to different use environment requirements; when the base plate is the flexible plate, the section code display base plate possesses flexible function, and applicable wearable equipment field has promoted the practicality of product.
In a second aspect, embodiments of the present application further provide a method for manufacturing a segment code display substrate, including:
preparing a driving electrode on a first substrate, wherein the driving electrode comprises a connecting part and a leading-out part which are electrically connected;
manufacturing a separation frame matrix comprising a plurality of separation frames on the first substrate, wherein the separation frames cover the extraction part and are arranged to avoid the connection part;
preparing a display electrode on the first substrate, and overlapping and electrically connecting a connection part of the driving electrode with the display electrode;
filling a display medium into the barrier frame matrix;
and bonding the first substrate and the second substrate in an atmosphere or vacuum state.
According to the manufacturing method of the segment code display substrate, the display electrode which is correspondingly and electrically connected with the driving electrode is manufactured after the separation frame matrix is manufactured on the driving electrode, so that the driving effect of the shielding effect driving electrode connecting part of the driving electrode leading-out part and the corresponding display electrode is achieved, the separation frame matrix can achieve one or more functions of storage, separation and support functions of a display medium and insulation functions of the driving electrode, expensive electronic capsule films can be avoided, the existing production process flow is optimized, the manufacturing procedure is simplified, the production cost is reduced, the production efficiency is improved, and certain economic benefits can be brought.
In a third aspect, an embodiment of the present application further proposes a liquid crystal display device, including the segment code display substrate according to any one of the embodiments, where the display medium is a liquid crystal filled in the accommodating space.
In a fourth aspect, an embodiment of the present application further provides an electronic paper display device, including the segment code display substrate according to any one of the embodiments, where the display medium is electronic ink filled in the accommodating space.
According to the liquid crystal display device and the electronic paper display device, the insulating isolation frame is added on the leading-out part of the driving electrode to shield the induction action of the driving electrode on the display medium, and the connection part is exposed by the isolation frame, so that the electrical communication between the driving electrode and the display electrode can be ensured; the plurality of containing spaces for filling the display medium are formed between the first substrate and the second substrate by the array distributed blocking frames, so that expensive electronic capsule films can be avoided, good display effects are ensured, the preparation process is optimized, the yield of products is improved, the materials and the production cost are reduced, and the problems of complex preparation process and high production cost of the existing segment code products are effectively solved; and above-mentioned liquid crystal display device and electronic paper display device still accessible selects the different materials of first base plate and second base plate in order to be applied to wearable equipment field with it, increases the application range of product, further improves its practicality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a segment code display substrate according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a driving circuit on a first substrate of an 8 field code according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the structure of the "8" field code shown in FIG. 2 after the block frame matrix is fabricated;
FIG. 4 is a schematic diagram of the structure of the display electrode after the "8" field code shown in FIG. 3 is formed;
FIG. 5 is a schematic diagram of the structure of the "8" field code of FIG. 4 after filling the display medium;
FIG. 6 is a schematic diagram of the structure of the "8" field code shown in FIG. 5 after the second substrate is fabricated and frame glue is applied;
FIG. 7 is a schematic diagram of the structure of the "8" field code shown in FIG. 6 after the first substrate and the second substrate are bonded;
FIG. 8 is a schematic diagram of a segment code display substrate according to another embodiment of the present invention;
FIG. 9 is a schematic diagram of a segment code display substrate shown in FIG. 8 in use;
fig. 10 is a flowchart of a method for manufacturing a segment code display substrate according to another embodiment of the present invention.
The meaning of the labels in the figures is:
100. a segment code display substrate;
10. a first substrate;
20. a circuit layer; 21. a display electrode; 211. a first display electrode; 212. a second display electrode; 213. a third display electrode; 22. a driving electrode; 221. a connection part; 222. a lead-out part; 223. a protrusion;
30. a second substrate; 31. a transparent electrode;
40. a display medium;
50. a barrier frame matrix; 51. a separation frame; 511. a sidewall; 52. an accommodation space;
60. and (5) frame glue.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings, i.e., embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In order to describe the technical scheme of the invention, the following description is made with reference to specific drawings and embodiments.
The embodiment of the application provides a segment code display substrate which can be used for an EPD (electronic display) segment code product and also can be used for an LCD (Liquid Crystal Display ) TN, HTN, STN segment code product.
Referring to fig. 1 to 7, an embodiment of a first aspect of the present application provides a segment code display substrate 100, which includes a first substrate 10, a circuit layer 20, a second substrate 30 disposed opposite to the first substrate 10, a display medium 40 disposed between the first substrate 10 and the second substrate 30, and a barrier frame matrix 50.
The circuit layer 20 is disposed on the first substrate 10, the circuit layer 20 includes at least one display electrode 21 and a driving electrode 22 correspondingly connected, the driving electrode 22 includes a connection portion 221 and a lead portion 222 electrically connected to each other, and the connection portion 221 is electrically connected to the display electrode 21.
The isolation frame matrix 50 is disposed on the first substrate 10, the isolation frame matrix 50 is made of an insulating material and includes a plurality of isolation frames 51 distributed in an array, a receiving space 52 for filling the display medium 40 is formed in the isolation frames 51, and the isolation frames 51 cover the lead-out portions 222 and expose the connection portions 221.
It will be appreciated that each display electrode 21 is electrically connected to a respective one of the drive electrodes 22. In the present embodiment, the isolating frame 51 covers the lead-out portion 222 of the driving electrode 22 and exposes the connection portion 221 of the driving electrode 22, and the display electrode 21 is exposed to the connection portion 221 in the isolating frame 51 through overlapping contact, so that electrical communication with the driving electrode 22 is achieved, and thus, not only electrical connection with the corresponding display electrode 21 can be achieved, but also electrical communication with other display electrodes 21 can be avoided, and the degree of freedom in the arrangement position of the driving electrode 22 is high.
In the present embodiment, the side of the second substrate 30 facing the first substrate 10 is provided with a transparent electrode 31, and the transparent electrode 31 may include at least one of ITO, silver nanowires, graphene, and carbon nanotubes, which is not limited herein.
It will be appreciated that the barrier frame 51 is configured to cover the lead-out portion 222 of the driving electrode 22, so as to weaken the sensing effect between the driving electrode 22 and the display medium 40 in the barrier frame 51, and avoid affecting the display effect. In addition, the existence of the blocking frame 51 can enable the display medium 40 in the blocking frame 51 to move in the blocking frame 51, so that color mixing caused by disordered movement of the display medium 40 is avoided, and contrast and display effect of the segment code display substrate 100 are improved.
It will be appreciated that the display medium 40 (containing plasma particles) may be injected into the barrier frame 51 by coating, screen printing or filling, and the specific operation mode may be selected according to the needs, which is not limited herein.
In this embodiment, the driving electrode 22 and the display electrode 21 are sequentially prepared on the first substrate 10. First, a conductive film layer is deposited on a first substrate 10 (Glass/PI base material in this embodiment) by a physical or chemical method, for example, a metal film layer is made for conduction by a sputtering process or vapor deposition, and then a pattern of a driving electrode 22 is prepared by a photolithography, etching, or the like method; secondly, manufacturing a barrier frame matrix 50 in the display area, wherein the barrier frame 51 can cover the lead-out part 222 of the driving electrode 22 through corresponding graphic and size design, and the connecting part 221 of the driving electrode 22 is exposed in the barrier frame 51; the conductive film layer is deposited again by a physical or chemical method, for example, a metal film layer is made for conduction by a sputtering process or vapor deposition, and then the pattern of the display electrode 21 is prepared by photolithography, etching, or the like, and the display electrode 21 is ensured to overlap with the connection portion 221 of the corresponding driving electrode 22. It will be appreciated that other ancillary functional layers may be deposited under the conductive film layer according to actual product requirements, and are not limited in this regard.
According to the segment code display substrate 100, the insulating isolation frame 51 is added on the lead-out portion 222 of the driving electrode 22 to shield the induction effect of the driving electrode 22 on the display medium 40, and the connection portion 221 is used for ensuring the electric communication between the driving electrode 22 and the display electrode 21, and as the array distributed isolation frames 51 form a plurality of accommodating spaces 52 for filling the display medium 40 between the first substrate 10 and the second substrate 30, the expensive electronic capsule membrane can be avoided, good display effect is ensured, the preparation process is optimized, the yield of products is improved, the material and production cost are reduced, and the problems of complex preparation process and high production cost of the current segment code products are effectively solved.
In some embodiments of the present application, the blocking frame matrix 50 is inorganic, and the materials of the blocking frame matrix 50 include, but are not limited to: siO (SiO) 2 、SiN x 、SiON x The barrier frame matrix 50 is formed by one-time fabrication by a screen printing method. As will be appreciated by those skilled in the art, the resist frame matrix 50 is screen printed in a pattern of a plurality of sidewalls 511, and after screen printing, the sidewalls 511 can be masked on the lead-out portions 222 of the driving electrodes 22. In other embodiments, the barrier frame matrix 50 may be formed by a mask deposition process, or the barrier frame matrix 50 may be formed by a deposition-first mask dry etching process at a time.
In another embodiment, the resist frame matrix 50 is organic, and the resist frame matrix 50 is formed by exposure development or organic gel printing. For example, the resist frame matrix 50 is made of a photoresist material, and the resist frame matrix 50 may be removed by photolithography to remove unnecessary portions. Therefore, the materials and the preparation method of the isolation frame matrix 50 are diversified, the materials and the preparation method can be selected automatically according to actual use conditions, and the preparation method has mature process, so that the quality of the finished product of the isolation frame matrix 50 can be improved.
Referring to fig. 1 to 4, the isolation frame 51 includes a plurality of sidewalls 511, each sidewall 511 is connected to the first substrate 10, a group of adjacent sidewalls 511 form the isolation frame 51 and form an accommodating space 52 together with the first substrate 10, one sidewall 511 is shared between the adjacent isolation frames 51, and the sidewalls 511 cover the lead-out portion 222. Thus, the sidewall 511 can serve as an insulating layer of the lead-out portion 222 of the driving electrode 22 to weaken the induction of the electric field of the driving electrode 22 to the display medium 40, so as to improve the display effect; the plurality of side walls 511 can also realize the storage and isolation functions of the display medium 40, and can also serve as a thickness supporting layer of the display medium 40, so as to improve the compression resistance and the product quality of the segment code display substrate 100.
In this embodiment, the sidewalls 511 are connected and vertically staggered to divide the entire display area into a plurality of square barrier frames, so that the uniformity of the filled display medium 40 in the entire display area can be ensured and the display effect can be improved. It is understood that in other embodiments, the specific shape of the blocking frame 51 may be other, including but not limited to triangular, pentagonal, etc.
Referring to fig. 2 and 4, in one embodiment of the present application, the circuit layer 20 includes a plurality of display electrodes 21 and a plurality of driving electrodes 22, each driving electrode 22 includes a connection portion 221 and a lead-out portion 222 electrically connected, and each driving electrode 22 is electrically connected to the corresponding display electrode 21 through the connection portion 221. At least one of the display electrodes 21 is covered on the lead-out portion of the drive electrode corresponding to the other display electrode, and is provided with insulation by the side wall 511. In this way, the lead-out portion 222 of any one of the driving electrodes 22 is not electrically connected to the other display electrode, and the individual display of the display electrode 21 can be realized, thereby accurately controlling the display target image.
Referring to fig. 2 to 7, in one embodiment of the present application, the display electrodes 21 of the segment code display substrate 100 are "8" field codes, and include seven display electrodes 21, and any number from 0 to 9 can be displayed. The driving electrodes 22 include seven driving electrodes 22, and are connected to the display electrodes 21. The lead-out portions 222 of part of the driving electrodes 22 are arranged to overlap with other display electrodes, but since the side walls 511 of the barrier frame matrix 50 are covered over the lead-out portions 222 of each driving electrode 22, the lead-out portions 222 of the driving electrodes 22 do not affect other display electrodes. In this way, the display electrodes 21 do not affect each other, and the display condition of the corresponding display electrode 21 can be realized by controlling the driving electrodes 22 one by one so as to control the display target number.
Referring to fig. 1, 8 and 9, in another embodiment of the present application, one of the display electrodes 21 is annular, and the other display electrode is located in the annular display electrode. Thus, the display of patterns with different layers can be realized, and the layering sense of a display picture is enhanced. In the present embodiment, the segment code display substrate 100 has three display electrodes 21, namely, a first display electrode 211, a second display electrode 212 and a third display electrode 213. Wherein the first display electrode 211 is annular and is arranged at the outermost side; the second display electrode 212 and the third display electrode 213 are each in the shape of an independent closed letter, and are each disposed within the first display electrode 211. The three driving electrodes 22 are also provided, and are respectively a first driving electrode 22, a second driving electrode 22 and a third driving electrode 22, and are connected to the respective display electrodes 21. The extraction portions 222 of the second driving electrode 22 and the third driving electrode 22 overlap the first display electrode 211, but since the side walls 511 of the barrier frame matrix 50 are covered above the extraction portions 222 of the second driving electrode 22 and the third driving electrode 22, the different display electrodes 21 do not affect each other, and the display conditions of the corresponding display electrodes 21 can be realized by controlling the three driving electrodes 22 one by one.
Referring to fig. 1 to 4, in one embodiment of the present application, the distance between adjacent sidewalls 511 is greater than the width of the connection portion 221 along the direction parallel to the first substrate 10, so that the sidewalls 511 cannot cover the connection portion 221 of the driving electrode 22, and the connection portion 221 may be entirely exposed in the isolation frame 51; or the connection portion 221 includes a protrusion 223, and the width of the protrusion 223 is greater than the width of the sidewall 511. In this way, the sidewall 511 cannot completely cover the connection portion 221 of the driving electrode 22, and the protrusion 223 on the connection portion 221 may be exposed in the barrier frame 51 to enable subsequent electrical communication with the display electrode 21.
In the present embodiment, the cross section of the sidewall 511 is a rectangular structure, and it is understood that in other embodiments, the cross section of the sidewall 511 may be other polygonal structures, such as a trapezoid, which is not limited herein.
In the present embodiment, the bump 223 is a rectangular conductive film layer disposed on the driving electrode 22. It will be appreciated that in other embodiments, the shape of the connection 221 may be similar to the shape of the entire display electrode 21 and slightly smaller than the display electrode 21. In this way, stable electrical connection between the connection portion 221 and the display electrode 21 can also be achieved. Therefore, the shape of the connection portion 221 is various, and is not limited herein.
It will be appreciated that the protrusion 223 may be omitted, and the preparation process of the separation frame matrix 50 is controlled, so that two or more adjacent separation frames 51 are communicated, and the accommodating space 52 is increased, so that the distance between the adjacent side walls 511 is larger than the width of the connecting portion 221, so as to ensure that the connecting portion 221 of the driving electrode 22 can be exposed in the accommodating space 52.
Referring to fig. 1 to 4, in an embodiment of the present application, a width of the sidewall 511 is greater than a width of the lead-out portion 222 along a direction parallel to the first substrate 10. In this way, the side wall 511 can be completely covered by the lead-out portion 222 of the driving electrode 22, and the induction of the driving electrode 22 to the display medium 40 can be shielded.
In this embodiment, the lead portion 222 is a straight line segment. It will be appreciated that in other embodiments, the shape of the lead-out portion 222 may be other, as long as the side wall 511 of the blocking frame matrix 50 is completely covered, which is not limited herein.
In one embodiment of the present application, at least one of the first substrate 10 and the second substrate 30 is a glass plate or a flexible plate. Thus, the segment code display substrate 100 can adapt to different use environment requirements; when the substrate is a flexible board, the segment code display substrate 100 has a bendable function, and is applicable to the field of wearable equipment, so that the practicability of the product is improved.
In the present embodiment, the first substrate 10 is a glass substrate, and the second substrate 30 is a PET substrate. It is understood that in other embodiments, the first substrate 10 may be a glass substrate with an ultra-thin thickness, and the first substrate 10 may also have a certain bending capability. In another embodiment, the first substrate 10 and the second substrate 30 may also be made of plastic, including at least one of PI, PEN, PET, which is not limited herein.
Referring to fig. 1 to 6, in one embodiment of the present application, a sealant 60 is disposed on at least one of the first substrate 10 and the second substrate 30, and is used for sealing and fixing the first substrate 10 and the second substrate 30 later, so that the first substrate 10 and the second substrate 30 can be tightly adhered, and the frame of the display medium 40 is limited to the segment code display substrate 100.
In one embodiment of the present application, the first substrate 10 and the second substrate 30 are connected by a packaging and bonding technology under vacuum or air state, so as to exhaust air between the first substrate 10 and the second substrate 30, strengthen the combination between the first substrate 10 and the second substrate 30, and enhance the display effect of the screen.
The segment code display substrate 100 is provided with the insulating isolation frame 51 on the lead-out portion 222 of the driving electrode 22 to shield the induction action of the driving electrode 22 on the display medium 40, and the connection portion 221 is used for ensuring the electrical communication between the driving electrode 22 and the display electrode 21, so that the display electrodes 21 with different positional relationships can be controlled respectively, and the expected display effect can be realized.
Referring to fig. 10, an embodiment of a second aspect of the present application provides a method for manufacturing a segment code display substrate 100, including:
in step S10, the driving electrode 22 is prepared on the first substrate 10.
Specifically, a preparation work may be performed in advance, and the prepared bare boards of the first substrate 10 and the second substrate 30 may be cleaned.
Referring to fig. 1 and 2, an electrode layer is formed on a first substrate 10 by sputtering, and then a driving electrode 22 is formed by photolithography and etching, wherein the driving electrode 22 includes a connection portion 221 and a lead portion 222 electrically connected.
Step S20: a barrier frame matrix 50 including a plurality of barrier frames 51 is fabricated on the first substrate 10.
Referring to fig. 1 and 3, a separation frame matrix 50 is formed on a suitable position of the first substrate 10 by gluing and exposing, the separation frame matrix 50 includes a plurality of separation frames 51, and the separation frames 51 cover the lead-out portions 222 of the driving electrodes 22 and are disposed away from the connection portions 221.
Step S30: a display electrode 21 is prepared on the first substrate 10.
Referring to fig. 1, 2 and 4, a display electrode 21 is formed on the first substrate 10 by sputtering, and then the display electrode 21 is formed by photolithography and etching, and the connection portion 221 of the driving electrode 22 is overlapped with and electrically connected to the display electrode 21.
Step S40: the display medium 40 is filled into the barrier frame matrix 50.
Referring to fig. 5, the display medium 40 is poured into the barrier frame 51 by coating, so as to complete the manufacture of the first substrate 10.
Step S50: the first substrate 10 and the second substrate 30 are bonded in an atmospheric or vacuum state.
Specifically, referring to fig. 1 and 6, a transparent electrode 31 is formed on the second substrate 30 by sputtering, thereby completing the fabrication of the second substrate 30. And a frame glue 60 is coated on the second substrate 30 on which the transparent electrode 31 is formed.
Referring to fig. 1 and 7, the first substrate 10 with the display medium 40 poured therein and the second substrate 30 coated with the frame glue 60 are bonded by vacuum bonding. And cutting the bonded and cured box-forming products to finish the manufacture of single-grain products.
It will be appreciated that the barrier frame matrix 50 may also be provided on the second substrate 30, with the display medium 40 being coated and impregnated into the barrier frame 51.
According to the manufacturing method of the segment code display substrate 100 provided by the embodiment, the display electrode 21 which is correspondingly and electrically connected with the driving electrode 22 is manufactured after the separation frame matrix 50 is manufactured on the driving electrode 22, so that the driving effect of the shielding effect of the leading-out part 222 of the driving electrode 22 on the driving electrode 22 and the corresponding display electrode 21 is realized, the separation frame matrix 50 can realize one or more functions of storage, separation and support functions of the display medium 40 and insulation functions of the driving electrode 22, expensive electronic capsule films can be avoided, the existing production process flow is optimized, the manufacturing procedure is simplified, the production cost is reduced, the production efficiency is improved, and certain economic benefits can be brought.
An embodiment of the third aspect of the present application provides a liquid crystal display device, including a segment code display substrate 100, where a display medium 40 is liquid crystal filled in an accommodating space 52, and reference is made to embodiment one for specific structure of the segment code display substrate 100.
An embodiment of the fourth aspect of the present application provides an electronic paper display device, including a segment code display substrate 100, where the display medium 40 is electronic ink filled in the accommodating space 52, and reference is made to embodiment one for specific structure of the segment code display substrate 100.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. A segment code display substrate, comprising:
a first substrate;
the circuit layer is arranged on the first substrate and comprises at least one display electrode and a driving electrode which is correspondingly connected, the driving electrode comprises a connecting part and a leading-out part which are electrically connected, and the connecting part is electrically connected with the display electrode;
a second substrate disposed opposite to the first substrate;
a display medium disposed between the first substrate and the second substrate;
the isolating frame matrix is arranged on the first substrate, is made of insulating materials and comprises a plurality of isolating frames distributed in an array, the isolating frames and the first substrate jointly form an accommodating space, the display medium is filled in the accommodating space, and the isolating frames cover the leading-out part and expose the connecting part.
2. The segment code display substrate according to claim 1, wherein the blocking frame comprises a plurality of side walls, each side wall is connected to the first substrate and forms the accommodating space together with the first substrate, one side wall is shared between adjacent blocking frames, and the side wall covers the lead-out portion.
3. The segment code display substrate according to claim 2, wherein the circuit layer includes a plurality of the display electrodes and a plurality of the drive electrodes, each of the drive electrodes includes the connection portion and the extraction portion electrically connected, and each of the drive electrodes is electrically connected to the corresponding display electrode through the connection portion;
at least one display electrode covers the leading-out part of the driving electrode corresponding to the other display electrode, and insulation setting is realized through the side wall.
4. The segment code display substrate of claim 2, wherein at least one of the first substrate and the second substrate is a glass plate or a flexible plate; the distance between the adjacent side walls is larger than the width of the connecting part along the direction parallel to the first substrate; or alternatively, the first and second heat exchangers may be,
the connecting portion comprises a protrusion, and the width of the protrusion is larger than that of the side wall.
5. The segment code display substrate of claim 2, wherein the width of the sidewall is greater than the width of the lead-out portion in a direction parallel to the first substrate.
6. The segment code display substrate according to any one of claims 1 to 5, wherein the barrier frame matrix is inorganic, and the barrier frame matrix is manufactured by a mask method deposition, screen printing, or a method of first deposition and then mask dry etching; or alternatively, the first and second heat exchangers may be,
the separation frame matrix is an organic matter and is formed by exposure and development or organic gel silk printing.
7. A manufacturing method of a segment code display substrate for manufacturing the segment code display substrate according to any one of claims 1 to 6; the manufacturing method of the segment code display substrate is characterized by comprising the following steps:
preparing a driving electrode on a first substrate, wherein the driving electrode comprises a connecting part and a leading-out part which are electrically connected;
manufacturing a separation frame matrix comprising a plurality of separation frames on the first substrate, wherein the separation frames cover the extraction part and are arranged to avoid the connection part;
preparing a display electrode on the first substrate, and overlapping and electrically connecting a connection part of the driving electrode with the display electrode;
filling a display medium into the barrier frame matrix;
and bonding the first substrate and the second substrate in an atmosphere or vacuum state.
8. A liquid crystal display device comprising the segment code display substrate according to any one of claims 1 to 6, wherein the display medium is liquid crystal filled in the accommodation space.
9. An electronic paper display device, characterized by comprising the segment code display substrate according to any one of claims 1-6, wherein the display medium is electronic ink filled in the accommodating space.
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| CN202110752946.3A CN113552755B (en) | 2021-07-02 | 2021-07-02 | Segment code display substrate, manufacturing method thereof, liquid crystal display device and electronic paper display device |
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