Segment code display module, manufacturing method, liquid crystal display device and electronic paper display device

Abstract

The invention relates to the technical field of display screens, and discloses a segment code display module which comprises a first substrate, a second substrate and a display medium layer, the first substrate is provided with a common electrode layer, the second substrate is arranged corresponding to the first substrate, a plurality of field blocks are arranged in the second substrate, the field blocks are connected with a drive display module layer, a cofferdam layer is arranged between the driving display module layer and the common electrode layer, the cofferdam layer is arranged on the driving display module layer or the common electrode layer, the cofferdam layer divides a plurality of containing spaces in the display medium layer, and the containing spaces are filled with display media. The corresponding cofferdam layer is arranged between the driving display module layer and the common electrode layer according to the field blocks, so that the display uniformity of each field block is ensured, and the overall display effect is improved. The invention further discloses a manufacturing method of the segment code display module, a liquid crystal display device with the segment code display module and an electronic paper display device with the segment code display module.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a segment code display module and a manufacturing method thereof, a liquid crystal display device and an electronic paper display device. Background Art

[0002] Segment code display technology is a widely used display technology. It generates an electric field between the driving display module and the common electrode to drive the liquid crystal, electronic ink or electronic paste and other flowing media to achieve the display effect. In the prior art, the segment code display has the problem of visible metal layer leads. At the same time, for three-layer or multi-layer segment code displays, holes need to be opened in the insulating layer. At the opening, the height difference with the top substrate is inconsistent with the height difference of other positions, resulting in the flow medium at this position being different from the flow medium at other positions, which leads to uneven display and poor display effect. Summary of the invention

[0003] The present invention aims to solve at least one of the problems in the background technology. To this end, the present invention provides a segment code display module and a manufacturing method, a liquid crystal display device and an electronic paper display device to solve the problem of uneven display and poor display effect of the segment code display in the prior art.

[0004] According to a first aspect of the present invention, a segment code display module includes a first substrate, a second substrate and a display medium layer, wherein the first substrate is provided with a common electrode layer; the second substrate is provided corresponding to the first substrate, a plurality of field blocks are provided in the second substrate, and a drive display module layer is connected to the field block, wherein a dam layer is provided between the drive display module layer and the common electrode layer, and the dam layer is provided on the drive display module layer or the common electrode layer; the dam layer divides a plurality of accommodation spaces in the display medium layer, and the accommodation spaces are filled with display medium. By providing a corresponding dam layer between the drive display module layer and the common electrode layer according to the field blocks, the supporting effect of the dam layer for the first substrate and the second substrate can be made more uniform, and at the same time, a plurality of accommodation spaces of the same size are defined to fill the display medium, so that the display effect of the area is more uniform, thereby ensuring the display effect of each field block and improving the overall display effect.

[0005] According to another embodiment of the present invention, the dam layer includes a plurality of enclosure walls, wherein at least part of the enclosure walls are regularly arranged on the drive display module layer or the common electrode layer.

[0006] According to another embodiment of the present invention, the display driving module layer includes a metal wiring layer, and the metal wiring layer includes a plurality of metal wirings electrically connected to the field blocks.

[0007] According to another embodiment of the present invention, part of the enclosure wall covers the metal lead arrangement.

[0008] According to another embodiment of the present invention, a first insulating layer is disposed on the metal lead layer, the first insulating layer includes a plurality of insulating blocks that are not connected to each other, and the insulating blocks cover the metal lead layer.

[0009] According to another embodiment of the present invention, the driving display module layer includes a metal lead layer and a second insulating layer, the metal lead layer includes a plurality of metal leads, the second insulating layer is arranged on the metal lead layer, and a plurality of openings are provided on the second insulating layer, a plurality of display electrode blocks are provided at the openings, and the plurality of display electrode blocks can be electrically connected to the metal leads at the openings.

[0010] According to another embodiment of the present invention, a filling body is disposed at the opening, a top of the filling body is disposed flush with the display electrode block, and a supplementary electrode block is disposed on top of the filling body and the display electrode block.

[0011] A method for manufacturing a segment code display module according to a second aspect of an embodiment of the present invention comprises the steps of:

[0012] forming a plurality of field blocks on the second substrate;

[0013] Based on the plurality of field blocks, forming a display driving module layer electrically connected to the plurality of field blocks on the second substrate;

[0014] forming a dam layer on the first substrate or the second substrate, wherein the dam layer forms a plurality of accommodation spaces in the display medium layer;

[0015] Based on the accommodation space, filling the accommodation space with a display medium;

[0016] The first substrate and the second substrate are bonded together.

[0017] A liquid crystal display device according to an embodiment of a third aspect of the present invention includes a segment code display module, and the display medium is liquid crystal.

[0018] An electronic paper display device according to a fourth aspect of an embodiment of the present invention includes a segment code display module, and the display medium is electronic ink or electronic paste.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention discloses a segment code display module and a manufacturing method, a liquid crystal display device and an electronic paper display device. The segment code display module includes a first substrate, a second substrate and a display medium layer. The first substrate is provided with a common electrode layer. The second substrate is arranged corresponding to the first substrate. A plurality of field blocks are arranged in the second substrate. A drive display module layer is connected to the field block. A cofferdam layer is arranged between the drive display module layer and the common electrode layer. The cofferdam layer is arranged on the drive display module layer or the common electrode layer. The cofferdam layer divides a plurality of accommodating spaces in the display medium layer. The accommodating spaces are filled with display media. By arranging corresponding cofferdam layers between the drive display module layer and the common electrode layer according to the field blocks, the supporting effect of the cofferdam layer on the first substrate and the second substrate can be made more uniform. At the same time, a plurality of accommodating spaces of the same size are defined to fill the display medium, so that the display effect of the area is more uniform, thereby ensuring the display effect of each field block and improving the overall display effect.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0023] Figure 1 A cross-sectional schematic diagram of an embodiment of a segment code display module provided by the present application;

[0024] Figure 2 A cross-sectional schematic diagram of another embodiment of the segment code display module provided by the present application;

[0025] Figure 3 A cross-sectional schematic diagram of an embodiment of a second substrate of a segment code display module provided by the present application;

[0026] Figure 4 A cross-sectional schematic diagram of another embodiment of the second substrate of the segment code display module provided by the present application;

[0027] Figure 5 A cross-sectional schematic diagram of another embodiment of the second substrate of the segment code display module provided by the present application;

[0028] Figure 6 A cross-sectional schematic diagram of another embodiment of the second substrate of the segment code display module provided by the present application;

[0029] Figure 7 A cross-sectional schematic diagram of another embodiment of the second substrate of the segment code display module provided by the present application;

[0030] Figure 8 A schematic top view of an embodiment of a second substrate of a segment code display module provided by the present application;

[0031] Fig. 9 A schematic diagram of a process for manufacturing a segment code display module provided in this application;

[0032] The meanings of the marks in the figure are:

[0033] 100, segment code display module; 110, first substrate; 111, common electrode layer;

[0034] 120, second substrate; 121, field block; 122, drive display module layer; 1221, metal lead layer;

[0035] 12211, metal lead; 1222, first insulating layer; 12221, insulating block;

[0036] 1223, second insulating layer; 12231, opening; 1224, display electrode block; 1225, filling body;

[0037] 1226. Supplement electrode blocks;

[0038] 130. display medium layer; 131. display medium;

[0039] 140. Cofferdam layer; 141. Retaining wall. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it is to be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In order to illustrate the segment code display module and manufacturing method, liquid crystal display device and electronic paper display device provided in the present application, the following is a detailed description in conjunction with the accompanying drawings in the specification and the text description of the embodiments.

[0044] Reference below Figure 1-Figure 8 A segment code display module 100 according to an embodiment of the first aspect of the present invention is described. Figure 1 and Figure 2 As shown, the segment code display module 100 includes a first substrate 110, a second substrate 120 and a display medium layer 130. Specifically, the first substrate 110 is provided with a common electrode layer 111, and the second substrate 120 is arranged corresponding to the first substrate 110. A plurality of field blocks 121 are arranged in the second substrate 120, and a drive display module layer 122 is connected to the field block 121, wherein a cofferdam layer 140 is arranged between the drive display module layer 122 and the common electrode layer 111, and the cofferdam layer 140 is arranged on the drive display module layer 122 or the common electrode layer 111, and the cofferdam layer 140 can be arranged according to the arrangement of the field block 121. The display medium layer 130 is further divided into a plurality of receiving spaces (not shown in the figure) by the dam layer 140. The receiving spaces are filled with the display medium 131. By setting the corresponding dam layer 140 between the display driving module layer 122 and the common electrode layer 111 according to the field blocks 121, the supporting effect of the dam layer 140 for the first substrate 110 and the second substrate 120 can be made more uniform. At the same time, a plurality of receiving spaces of the same size are defined to fill the display medium 131, so that the display effect of the area is more uniform, thereby ensuring the display effect of each field block 121. The overall display effect is improved.

[0045] It should be noted that the cofferdam layer 140 can be evenly distributed in the area where the field block 121 is not set. For example, the cofferdam layer 140 in the area where the field block 121 is not set is set to a cross-section of one or more squares, circles, triangles or parallelograms and other regular shapes. At the same time, the cofferdam layer 140 is evenly distributed in the area where each field block 121 is set. For example, the cofferdam layer 140 in each field block 121 is set to a cross-section of one or more squares, circles, triangles or parallelograms and other regular shapes, and a circle of cofferdam layer 140 is required to be set along the edge of each field block 121. It can be understood that by setting a circle of cofferdam layer 140 at the edge of each field block 121, a certain number of display media 131 can be limited in each field block 121, so that the display effect of each field block 121 is more uniform.

[0046] It should be noted that, in some other embodiments, the cofferdam layer 140 may be partially evenly distributed or randomly distributed in areas where the field blocks 121 are not provided to meet different usage scenarios, which is not specifically limited here.

[0047] It should be noted that the height of the cofferdam layer 140 is between 0.5 and 20 μm. For example, the height range of the cofferdam layer 140 is 0.5-1 μm, or the height range of the cofferdam layer 140 is 1-5 μm, or the height range of the cofferdam layer 140 is 5-10 μm, or the height of the cofferdam layer 140 is 10-20 μm. It can be understood that the cofferdam layer 140 can be set to a component with consistent height, or, according to factors such as the shape of the field block 121, it can be set to multiple components with different heights.

[0048] It should be noted that the multiple field blocks 121 can display the same or different content, and the width and length of each field block 121 can be adjusted according to the usage scenario, which is not specifically limited here.

[0049] It should be noted that the dam layer 140 can be arranged on the display module layer 122, that is, the dam layer 140 is arranged on the second substrate 120, or the dam layer 140 can be arranged on the common electrode layer 111, that is, the dam layer 140 is arranged on the first substrate 110. It can be understood that according to different usage scenarios, the dam layer 140 is arranged on the first substrate 110 or the second substrate 120, and no specific limitation is made here.

[0050] It should be noted that the display medium 131 may be one of liquid crystal, electronic ink or electronic paste.

[0051] According to one embodiment of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, the cofferdam layer 140 includes a plurality of enclosure walls 141. Specifically, the plurality of enclosure walls 141 may be connected or not connected. For example, in an area where no field blocks 121 are provided, the plurality of enclosure walls 141 are interconnected and evenly distributed, and the enclosure walls 141 between the plurality of field blocks 121 are not connected. Furthermore, at least part of the enclosure walls 141 are regularly arranged on the drive display module layer 122 or the common electrode layer 111. That is, part of the enclosure walls 141 need to be evenly distributed on the drive display module layer 122. By evenly distributing the plurality of enclosure walls 141 in an area where no field blocks 121 are provided, the cofferdam layer 140 in the area has a more uniform supporting effect on the first substrate 110 and the second substrate 120. At the same time, a plurality of accommodating spaces of the same size are defined to fill the display medium 131, so that the display effect in the area is more uniform, thereby improving the overall display effect.

[0052] According to one embodiment of the present invention, Figure 3As shown, the display driving module layer 122 includes a metal lead layer 1221, and the metal lead layer 1221 includes a plurality of metal leads 12211 electrically connected to the field block 121. It should be noted that in the present embodiment, the metal lead 12211 acts as both a driving circuit and a display electrode. By setting a corresponding cofferdam layer 140 according to the field block 121 in a single-layer segment code product, the cofferdam layer 140 can provide a more uniform support effect on the first substrate 110 and the second substrate 120. At the same time, a plurality of accommodating spaces of the same size are defined to fill the display medium 131, so that the display effect of the area is more uniform, thereby improving the overall display effect.

[0053] According to one embodiment of the present invention, part of the enclosure wall 141 covers the metal lead 12211, that is, part of the enclosure wall 141 covers the metal lead 12211, and the metal lead 12211 is shielded by the enclosure wall 141 to reduce the interference of the metal lead 12211 on the display.

[0054] According to one embodiment of the present invention, Figure 4 As shown, a first insulating layer 1222 is provided on the metal lead layer 1221. Specifically, the first insulating layer 1222 includes a plurality of insulating blocks 12221 that are not connected to each other. Each insulating block 12221 covers the metal lead 12211. It can be understood that by providing the insulating block 12221 on the metal lead 12211, the metal lead 12211 can be shielded by the insulating block 12221, thereby reducing the interference of the metal lead 12211 with the display.

[0055] According to one embodiment of the present invention, Figure 5 and Figure 6 As shown, the display module layer 122 includes a metal lead layer 1221 and a second insulating layer 1223. The metal lead layer 1221 includes a plurality of metal leads 12211. The second insulating layer 1223 is disposed on the metal lead layer 1221, and a plurality of openings 12231 are disposed on the second insulating layer 1223. A plurality of display electrode blocks 1224 are disposed at the openings 12231. The plurality of display electrode blocks 1224 can be connected to the metal leads 12211 at the openings 12231. Electrical connection, at this time, the metal lead 12211 is connected to the field block 121, and the display electrode block 1224 is electrically connected to the metal wire. Furthermore, after the display electrode block 1224 is set at each opening 12231, there is still a height difference between the opening 12231 and the remaining positions. At this time, the enclosure wall 141 can be filled at the opening 12231. By setting the enclosure wall 141 to fill the opening 12231, the interference of the opening 12231 to the display is reduced.

[0056] According to one embodiment of the present invention, Figure 7As shown, a filling body 1225 is provided at the opening 12231, and the top of the filling body 1225 is arranged flush with the display electrode block 1224. A supplementary electrode block 1226 is provided on the top of the filling body 1225 and the display electrode block 1224. It can be understood that an electrical connection can be achieved between the display electrode block 1224 and the supplementary electrode block 1226. The opening 12231 is filled by setting the filling body 1225, thereby reducing the influence of the opening 12231 on the overall display. At the same time, after setting the filling body 1225 and the supplementary electrode block 1226, the retaining wall 141 can be evenly distributed at the opening 12231 and other positions, thereby improving the overall display effect.

[0057] It should be noted that the filler 1225 may be a transparent material so as not to affect the display light. Furthermore, the filler 1225 may be a transparent insulating material, or the filler 1225 may be a transparent conductive material.

[0058] Reference below Fig. 9 The manufacturing method of the segment code display module 100 according to the second embodiment of the present invention is described as follows: Fig. 9 As shown, the specific steps include:

[0059] Step S100: forming a plurality of field blocks 121 on the second substrate 120;

[0060] Specifically, a plurality of field blocks 121 are disposed inside the second substrate 120 , and different field blocks 121 may be disposed according to different usage scenarios.

[0061] Step S200: Based on the plurality of segment blocks 121 , a display driving module layer 122 electrically connected to the plurality of segment blocks 121 is formed on the second substrate 120 ;

[0062] Specifically, metal is plated on the second substrate 120, and the metal lead 12211 of the display module layer 122 is formed through coating, exposure, development, etching, and degumming. Then, a resin material is used to form an insulating layer with an opening 12231 on the metal lead 12211 through coating, exposure, development, and baking. Subsequently, ITO coating is performed on the insulating layer, and the display electrode block 1224 is formed through coating, exposure, development, etching, and degumming.

[0063] Step S300: forming a bank layer 140 on the first substrate 110 or the second substrate 120, and the bank layer 140 forms a plurality of accommodation spaces in the display medium layer 130;

[0064] Specifically, a resin material is used on the first substrate 110 or the second substrate 120 to form the bank layer 140 through coating, exposure, development, and baking. The bank layer 140 divides the display medium layer 130 into a plurality of accommodation spaces.

[0065] Step S400: Based on the accommodation space, fill the accommodation space with the display medium 131121;

[0066] Specifically, the display medium 131 is injected into the containing space. Furthermore, the display medium 131 may be liquid crystal, electronic ink or electronic paste.

[0067] Step S500 : bonding the first substrate 110 and the second substrate 120 .

[0068] A liquid crystal display device according to an embodiment of the third aspect of the present invention is described below. The liquid crystal display device includes a segment code display module 100. Specifically, the display medium 131121 is liquid crystal.

[0069] An electronic paper display device according to an embodiment of a fourth aspect of the present invention is described below. The electronic paper display device includes a segment code display module 100. Specifically, the display medium 131121 is electronic ink or electronic paste.

[0070] The segment code display module and manufacturing method, liquid crystal display device and electronic paper display device provided above are preferred embodiments and should not be construed as limiting the scope of protection of the present application. Those skilled in the art should be aware that various improvements or replacements may be made without departing from the concept of the present application, and all improvements or replacements should be within the scope of protection of the present application, that is, the scope of protection of the present application should be based on the claims.

[0071] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

Claims

1. A segment code display module, characterized in that: Included are: A first substrate, wherein the first substrate is provided with a common electrode layer; a second substrate, the second substrate is arranged corresponding to the first substrate, a plurality of field blocks are arranged in the second substrate, a drive display module layer is connected to the field block, wherein a dam layer is arranged between the drive display module layer and the common electrode layer, and the dam layer is arranged on the drive display module layer or the common electrode layer; The display medium layer, wherein the dam layer divides a plurality of accommodation spaces in the display medium layer, and the display medium is arranged in the accommodation spaces.

2. The segment code display module according to claim 1, characterized in that: The dam layer includes a plurality of enclosure walls, wherein at least a portion of the enclosure walls are regularly arranged on the drive display module layer or the common electrode layer.

3. The segment code display module according to claim 2, characterized in that: The display driving module layer includes a metal lead layer, and the metal lead layer includes a plurality of metal leads electrically connected to the field blocks.

4. The segment code display module according to claim 3, characterized in that: Part of the enclosure wall covers the metal lead arrangement.

5. The segment code display module according to claim 3, characterized in that: A first insulating layer is arranged on the metal lead layer, and the first insulating layer includes a plurality of insulating blocks which are not connected to each other, and the insulating blocks cover the metal lead layer.

6. The segment code display module according to claim 2, characterized in that: The display driving module layer includes a metal lead layer and a second insulating layer, the metal lead layer includes a plurality of metal leads, the second insulating layer is arranged on the metal lead layer, and a plurality of openings are arranged on the second insulating layer, a plurality of display electrode blocks are arranged at the openings, and the plurality of display electrode blocks can be electrically connected to the metal leads at the openings.

7. The segment code display module according to claim 6, characterized in that: A filling body is arranged at the opening, the top of the filling body is arranged flush with the display electrode block, and a supplementary electrode block is arranged on the top of the filling body and the display electrode block.

8. The method for manufacturing a segment code display module according to claim 1, wherein: Includes steps: forming a plurality of field blocks on the second substrate; Based on the plurality of field blocks, forming a display driving module layer electrically connected to the plurality of field blocks on the second substrate; forming a dam layer on the first substrate or the second substrate, wherein the dam layer forms a plurality of accommodation spaces in the display medium layer; Based on the accommodation space, filling the accommodation space with a display medium; The first substrate and the second substrate are bonded together.

9. A liquid crystal display device, characterized in that: It comprises the segment code display module as described in any one of claims 1 to 7, wherein the display medium is liquid crystal.

10. An electronic paper display device, characterized in that: It comprises the segment code display module as described in any one of claims 1 to 7, wherein the display medium is electronic ink or electronic paste.

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