ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE

An electronic device and a method for manufacturing an electronic device are provided. The electronic device includes a first substrate, a second substrate disposed opposite to the first substrate, a first light-shielding strip disposed on the first substrate and extending along a first direction, and a second light-shielding strip disposed between the first substrate and the second substrate and extending along a second direction different from the first direction. A portion of the first light-shielding strip overlapping a portion of the second light-shielding strip is defined as an overlapping region. The other portions of the first light-shielding strip and the second light-shielding strip outside the overlapping region are defined as a first non-overlapping region and a second non-overlapping region. The first light-shielding strip has a first thickness in the overlapping region and a second thickness in the first non-overlapping region. The second light-shielding strip has a third thickness in the overlapping region and a fourth thickness in the second non-overlapping region. A total of the first thickness and the third thickness is different from the fourth thickness.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of China application serial no. 201910822995.2, filed on Sep. 2, 2019. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.

BACKGROUND

Technical Field

The disclosure relates to an electronic device and a method for manufacturing the electronic device, and in particular to, an electronic device having a light-shielding strip.

Description of Related Art

Lithography and/or an etching process is an important process for manufacturing an electronic device. As the market demands for the electronic device constantly increase, the technology of lithography and/or the etching process is constantly improving. However, lithography and/or the etching process sometimes cannot be used to manufacture desired products when high resolution products are manufactured. Therefore, quality of electronic devices still needs to be improved.

SUMMARY

The disclosure is directed to an electronic device having a light-shielding strip.

According to embodiments of the disclosure, the electronic device includes a first substrate, a second substrate, a first light-shielding strip, and a second light-shielding strip. The second substrate is disposed opposite to the first substrate. The first light-shielding strip is disposed on the first substrate, and the first light-shielding strip extends along a first direction. The second light-shielding strip is disposed between the first substrate and the second substrate. The second light-shielding strip extends along a second direction, and the first direction is different from the second direction. A portion of the first light-shielding strip overlapping a portion of the second light-shielding strip is defined as an overlapping region, the other portion of the first light-shielding strip outside the overlapping region is defined as a first non-overlapping region, and the other portion of the second light-shielding strip outside the overlapping region is defined as a second non-overlapping region. The overlapping region has a total thickness, the second light-shielding strip has a thickness in the second non-overlapping region, and the total thickness is different from the thickness.

According to the embodiments of the disclosure, a method for manufacturing an electronic device includes the following steps: disposing a first light-shielding strip on a first substrate; providing a second substrate, and disposing a second light-shielding strip between first substrate and the second substrate; and pairing the first substrate with the second substrate. A portion of the first light-shielding strip overlapping a portion of the second light-shielding strip is defined as an overlapping region. The other portion of the first light-shielding strip outside the overlapping region is defined as a first non-overlapping region. The other portion of the second light-shielding strip outside the overlapping region is defined as a second non-overlapping region. The overlapping region has a total thickness, the second light-shielding strip has a thickness in the second non-overlapping region, and the total thickness is different from the thickness.

Based on the above, the electronic device of the embodiment of the disclosure separately disposes the first light-shielding strip and the second light-shielding strip. In this way, a region (which may be understood as a pixel region) surrounded by the first light-shielding strip and the second light-shielding strip may have a desired contour. Therefore, the electronic device of the embodiment of the disclosure has ideal quality.

DESCRIPTION OF THE EMBODIMENTS

A structure (or layer, component, substrate) being located on another structure (or layer, component, substrate) described in the disclosure may mean that two structures are adjacent and directly connected, or may mean that two structures are adjacent and indirectly connected. Indirect connection means that there is at least one intermediate structure (or intermediate layer, intermediate component, intermediate substrate, intermediate spacing) between two structures, the lower surface of a structure is adjacent or directly connected to the upper surface of the intermediate structure, and the upper surface of the other structure is adjacent or directly connected to the lower surface of the intermediate structure. The intermediate structure may be a single-layer or multi-layer physical structure or non-physical structure, which is not limited. In the disclosure, when a structure is disposed “on” another structure, it may mean that a structure is “directly” disposed on another structure, or a structure is “indirectly” disposed on another structure, that is, at least one structure is sandwiched between a structure and another structure.

The electrical connection or coupling described in the disclosure may refer to direct connection or indirect connection. In the case of a direct connection, terminals of two components on a circuit are directly connected or interconnected by a conductor segment. In the case of an indirect connection, there are switches, diodes, capacitors, inductors, other suitable components, or a combination of the above components between terminals of two components on a circuit, but are not limited thereto.

In the disclosure, the thickness, length and width may be measured by an optical microscope, and the thickness may be measured by a cross-sectional image in an electron microscope, but is not limited thereto. In addition, there may be some error between any two values or directions used for comparison. If a first value is equal to a second value, it implies that there may be an error of approximately 10% between the first value and the second value; if a first direction is perpendicular to a second direction, it implies that an angle between the first direction and the second direction may range from 80 to 100 degrees; and if a first direction is parallel to a second direction, it implies that an angle between the first direction and the second direction may range from 0 to 10 degrees.

In the disclosure, the embodiments described below may be combined and used without departing from the spirit and scope of the disclosure. For example, some features of one embodiment may be combined with some features of another embodiment to form another embodiment.

Exemplary embodiments of the disclosure are described in detail, and examples of the exemplary embodiments are shown in the accompanying drawings. Whenever possible, the same component symbols are used in the drawings and descriptions to indicate the same or similar parts.

FIG. 1is a schematic side view of an electronic device according to an embodiment of the disclosure. Referring toFIG. 1, an electronic device100includes a first substrate110, a second substrate120, and a medium130, where the medium130is disposed between the first substrate110and the second substrate120. The first substrate110is disposed opposite to the second substrate120and in a face-to-face manner. In at least some embodiments, the first substrate110and the second substrate120may be a rigid substrate or a flexible substrate, such as a plastic substrate or a glass substrate. For example, the first substrate110and the second substrate120may be made of materials respectively including glass, quartz, sapphire, ceramic, polycarbonate (PC), polyimide (PI), and polyethylene terephthalate (PET), liquid-crystal polymers (LCP), rubber, glass fiber, ceramic, other suitable substrate materials, or a combination thereof, but this is not limited thereto. The medium130may be made of a material such as a liquid crystal material, an electrowetting material, an electrophoretic material, an organic luminescent material, an inorganic luminescent material, etc., an organic light-emitting diode (OLED), a quantum dot (QD), a quantum dot light-emitting diode (QLED, QD-LED), a fluorescent material, a phosphor material, a light-emitting diode (LED), and a mini light-emitting diode (mini LED) or a micron light-emitting diode (micro LED), other suitable materials, or a combination of the foregoing, but this is not limited thereto. In some embodiments, the electronic device100further includes a spacer layer PS disposed between the first substrate110and the second substrate120. The spacer layer PS may partition the first substrate110and the second substrate120, and the spacer layer PS may have a plurality of columnar structures, but this is not limited thereto.

FIG. 2is a schematic partial top view of an electronic device according to an embodiment of the disclosure. Referring toFIG. 1andFIG. 2simultaneously, an electronic device100further includes a plurality of first light-shielding strips140, a plurality of second light-shielding strips150, and a plurality of color filter patterns160, where the color filter patterns160may be omitted in some embodiments. In the electronic device100, a plurality of first light-shielding strips140may be disposed on a first substrate110, and a plurality of second light-shielding strips150may be disposed between the first substrate110and a second substrate120. The plurality of first light-shielding strips140may extend along a first direction D1, the plurality of second light-shielding strips150may extend along a second direction D2, and the second direction D2intersects the first direction D1. In other words, the first direction D1is different from the second direction D2. In some embodiments, the first direction D1and the second direction D2may be at a right angle or at an acute angle, but this is not limited thereto. In some embodiments, the second substrate120is, for example, an active component array substrate, that is, drive circuit correlation members such as a plurality of scanning lines, a plurality of data lines, and a plurality of active components and the like may be disposed on the second substrate120. In this case, the first direction D1has, for example, the same extending direction as the scanning line, and the second direction D2has, for example, the same extending direction as the data line. In addition, the first light-shielding strips140and/or the second light-shielding strips150may block light, and light transmittance of the first light-shielding strip140and/or the second light-shielding strip150is, for example, less than 0.1% or less than 0.01%, or even is approximately 0%. The light transmittance is defined as a percentage of intensity of a light source after light having 100% intensity of the light source passes the first light-shielding strips140and/or the second light-shielding strips. In a third direction D3(a normal direction of the first substrate110), the second light-shielding strips150may selectively overlap the data lines to block the data lines (not shown), and the first light-shielding strips140may overlap the scanning line to block the scanning line (not shown).FIG. 2does not limit the stacking order of the members, and a contour of the color filter pattern160is not shown for clarity of the drawing. In some embodiments, the boundary of the color filter pattern160may partially overlap one of the second light-shielding strips150. Moreover, the adjacent two color filter patterns160may be adjacent to each other, and the boundary of the adjacent two color filter patterns160overlaps one of the second light-shielding strips150.

InFIG. 2, the first light-shielding strip140may be an elongated structure extending along the first direction D1, and the second light-shielding strip150may be an elongated structure extending along the second direction D2. The plurality of first light-shielding strips140may be respectively interlaced with the plurality of second light-shielding strips150, and a portion of the first light-shielding strips140overlapping a portion of the second light-shielding strips150in the third direction D3is defined as an overlapping region RX. The other portion of the first light-shielding strip140outside the overlapping region RX is defined as a first non-overlapping region NRX1, and the other portion of the second light-shielding strip150outside the overlapping region RX is defined as a second non-overlapping region NRX2. The material of the first light-shielding strip140and/or the second light-shielding strip150may be selected from opaque materials such as black resin, ink, metal, and the like that can block light. The materials of both the first light-shielding strip140and the second light-shielding strip150may be identical to each other, but may be different from each other. The first light-shielding strips140may be a single-layer structure or a double-layer structure, and the second light-shielding strips150may be a single-layer structure or a two-layer structure, but this is not limited thereto. The first light-shielding strip140and the second light-shielding strip150construct a grid and substantially opaque black matrix.

The first light-shielding strip140and the second light-shielding strip150define a plurality of pixel regions RP, and the color filter patterns160are for example, at least partially disposed in the pixel regions RP. The pixel region RP is not shielded by the first light-shielding strip140and the second light-shielding strip150. In other words, the pixel region RP does not overlap the first light-shielding strip140in the third direction D3, or does not overlap the second light-shielding strips150, and therefore the pixel region RP is a light transmissive region. In addition, the color filter pattern160disposed in the pixel region RP may be used to determine colors of the plurality of pixel regions RP, but the disclosure is not limited thereto. In some embodiments, the color filter pattern160may be selectively not disposed in the pixel region RP. Materials of the color filter pattern160may include a color resist material or other suitable materials, but this is not limited thereto. Depending on different colors, the color filter pattern160may include a color filter pattern160A, a color filter pattern160B, and a color filter pattern160C, where the color filter pattern160A, the color filter pattern160B, and the color filter pattern160C may respectively, for example, appear in red, green and blue, but this is not limited thereto. In other embodiments, the color filter pattern160may include a color filter pattern of two colors, a color filter pattern of four colors, and the like. In some embodiments, the pixel region RP, the first light-shielding strip140, and the second light-shielding strip150have an overall area, and the pixel region RP accounts for about 10% to 90% of the total area. In other words, the electronic device100may have an aperture ratio of 10% to 90%, but this is not limited thereto.

The stacking order of the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160may have a plurality of different designs. For example,FIG. 3is a schematic cross-sectional view of an electronic device according to an embodiment of the disclosure, andFIG. 3may be regarded as a schematic cross-sectional view of an embodiment of an electronic device taken along line I-I ofFIG. 2. Referring toFIG. 2andFIG. 3, in the present embodiment, the first light-shielding strips140, the second light-shielding strips150, and the color filter patterns160A-160C are for example, sequentially stacked on the first substrate110. The overlapping region RX has a total thickness TRX, a portion of the first light-shielding strips140in the total thickness TRX is defined to have a first thickness T1, and a portion of the second light-shielding strips150in the total thickness TRX is defined to have a third thickness T3. A of the first light-shielding strips140has a second thickness T2in the first non-overlapping region NRX1. A of the second light-shielding strips150has a fourth thickness T4in the second non-overlapping region NRX2. Because the second light-shielding strip150partially covers the first light-shielding strip140, the first light-shielding strip140and/or the second light-shielding strip150near an edge of the overlapping region RX may have a thickness tapered region. It should be noted that, when the thickness is calculated, a cross-section inFIG. 2is an example, and the second thickness T2may be a maximum thickness of one of the first light-shielding strips140in the first non-overlapping region NRX1in any cross section in the third direction D3. The fourth thickness T4may be a maximum thickness of one of the second light-shielding strips150in the second non-overlapping region NRX2in any cross section corresponding to a central region (as shown inFIG. 3) in the third direction D3, or the fourth thickness T4may be a maximum thickness of one of the second light-shielding strips150in the second non-overlapping region NRX2in a cross section taken in a direction perpendicular to a direction (the second direction D2) in which the second light-shielding strip150extends. The total thickness TRX may be a maximum thickness of the overlapping region RX in the third direction D3in any cross section. In some embodiments, the total thickness TRX may be different from the fourth thickness T4, and/or the total thickness TRX may be different than the second thickness T2. For example, the total thickness TRX may be greater than the second thickness T2, and the total thickness TRX may be greater than the fourth thickness T4. In some embodiments, the ratio of the total thickness TRX to the second thickness T2(or the fourth thickness T4) may be any value in ranges such as 1.1 to 1.5, 1.1 to 1.8, 1.1 to 2, 1.2 to 1.5, 1.2 to 1.8, 1.2 to 2, 1.5 to 1.8, 1.5 to 2, 1.8 to 2, and so on. In some embodiments, a maximum thickness of a corresponding member in the third direction D3may be measured in an electron microscope image of any section plane as the thickness described herein. In addition, because the third thickness T3is the thickness measured by the portion of the second light-shielding strip150covering the first light-shielding strip140, the fourth thickness T4and the third thickness T3may be different. However, in some embodiments, the fourth thickness T4and the third thickness T3may be the same.

The first light-shielding strips140and the second light-shielding strips150may be manufactured in different manufacturing steps, and the first light-shielding strips140and the second light-shielding strips150are in contact with each other at the overlapping region RX, and a physical boundary may exist therebetween. When the first light-shielding strip140and the second light-shielding strip150are made of different materials, the physical boundary between the two may be defined according to the difference in properties of different materials. However, when the first light-shielding strip140and the second light-shielding strip150are made of the same material or different materials, the physical boundary between the two may be less apparent. In some embodiments, the first light-shielding strip140and the second light-shielding strip150may have no obvious physical boundary, and therefore the first thickness T1and the second thickness T2are not easily measured separately. In this case, the overall thickness that is of the light-shielding pattern measured in the overlapping region RX and that is in the overlapping region RX may be used as the total thickness TRX.

The stacking order of the first light-shielding strip140, the second light-shielding strip150, and the color filter patterns160A-160C inFIG. 3is used as an example for description. In other embodiments, the first light-shielding strip140, the second light-shielding strip150, and the color filter patterns160A-160C may be stacked according to other stacking orders, and other films or members may be additionally disposed between the first light-shielding strip140, the second light-shielding strip150, and any two of the color filter patterns160A to160C. In other words, the first light-shielding strips140and the second light-shielding strips150do not necessarily contact each other in the overlapping region RX, and the color filter patterns160A-160C do not necessarily contact at least one of the first light-shielding strips140and the second light-shielding strips150. In addition, the color filter patterns160A to160C may also be made by using different manufacturing steps. Therefore, the adjacent two of the color filter patterns160A to160C may also overlap each other. For example, the color filter pattern160B inFIG. 3is for example, made earlier than the color filter pattern160A, and also earlier than the color filter pattern160C. Therefore, at the boundary between the color filter pattern160A and the color filter pattern160B ofFIG. 3, the color filter pattern160A may be stacked on the color filter pattern160B. In addition, at the boundary between the color filter pattern160B and the color filter pattern160C, the color filter pattern160C may be stacked on the color filter pattern160B. However, in other embodiments, the color filter patterns160A-160C may have other stacking orders. In some embodiments, the color filter patterns160A-160C may be made of the same or similar materials, so that the physical boundaries between each other may be less obvious.

FIG. 4is a schematic diagram of a member between a first substrate110and a medium130(not shown inFIG. 4) in an electronic device according to another embodiment of the disclosure, andFIG. 5is a schematic diagram of a stacking order of members inFIG. 4. The members described in the present embodiment may be applied to the electronic device100ofFIG. 1, and therefore a same component symbol is used to denote same or similar parts in the drawings and the description. Referring toFIG. 4andFIG. 5, a plurality of second light-shielding strips150, a plurality of first light-shielding strips140, and a plurality of color filter patterns160of the present embodiment are for example, sequentially stacked on a first substrate110. In addition, a planarization layer170may be selectively further disposed on the first substrate110, and the planarization layer170covers the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160. The material of the planarization layer170may include materials such as perfluoroalkoxy polymer resin (PFA), a polymer film on array (PFA), fluoroelastomers, or the like. Although a plurality of members (the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160) with different patterns exist between the planarization layer170and the first substrate110, because a thickness of the planarization layer170is substantially the same as a thickness of the color filter pattern160or a total thickness TRX, the planarization layer170may provide a relatively flat surface on a side away from the first substrate110. In some embodiments, a ratio of the thickness of the planarization layer170to a thickness of an upper color filter pattern160or the total thickness TRX may be any value in the range of 0.8 to 2, 1.0 to 1.5, and the like. It is mentioned herein that the ratio in the range of A to B may be understood as a relationship of A≤ratio≤B.

When the embodiment ofFIG. 4is applied to the electronic device ofFIG. 1, a structure ofFIG. 4may be flipped upside down and then paired with a second substrate120. In other words, when the structure ofFIG. 4is applied to the electronic device ofFIG. 1, the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160are located between the first substrate110and the second substrate120. It may be learned fromFIG. 1,FIG. 4, andFIG. 5that the second light-shielding strip150is disposed on the first substrate110, located between the first substrate110and the second substrate120, and may be located between the first substrate110and the medium130. The first light-shielding strips140and the color filter patterns160are disposed between the second light-shielding strip150and the second substrate120, and in particular, the first light-shielding strip140may be located between the second light-shielding strip150and the medium130, and the color filter pattern160may also be located between the first light-shielding strip140and the medium130. The planarization layer170is disposed between at least one of the first light-shielding strip140and the second light-shielding strip150and the second substrate120, and may be located between the first light-shielding strip140and the medium130. In other words, the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160are all disposed between the planarization layer170and the first substrate110.

In some embodiments, if the second light-shielding strip150is closer to a user than the first light-shielding strip140, the second light-shielding strip150may select a material having a lower light reflectance to improve quality of the electronic device100, but this is not limited thereto.

FIG. 6is a schematic partial cross-sectional view of a member ofFIG. 4. The cross-sectional cutting direction of the cross-sectional view ofFIG. 6is, for example, taken along one of the first light-shielding strips140inFIG. 2. Referring toFIG. 6, a portion RX of the first light-shielding strips140overlapping the second light-shielding strips150in a third direction D3is defined as an overlapping region RX. The overlapping region RX has a total thickness TRX, a portion of the first light-shielding strips140in the total thickness TRX is defined to have a first thickness T1, and a portion of the second light-shielding strips150in the total thickness TRX is defined to have a third thickness T3. One of the first light-shielding strips140has a second thickness T2in the first non-overlapping region NRX1. One of the second light-shielding strips150has a fourth thickness T4in the second non-overlapping region NRX2. Because the first light-shielding strip140partially covers the second light-shielding strip150, the first light-shielding strip140and/or the second light-shielding strip150near an edge of the overlapping region RX may have a thickness tapered region. When the thickness is calculated, a cross section inFIG. 6is an example, and the second thickness T2may be a maximum thickness of one of the first light-shielding strips140in the first non-overlapping region NRX1in any cross section in the third direction D3corresponding to a central region (as shown inFIG. 6) in the third direction D3, or the second thickness T4may be a maximum thickness of one of the second light-shielding strips150in the second non-overlapping region NRX2in a cross section taken in a direction perpendicular to a direction (the first direction D1) in which the first light-shielding strip140extends. The total thickness TRX may be a maximum thickness of the overlapping region RX in the third direction D3in any cross section. The total thickness TRX may be a sum of the first thickness T1and the third thickness T3. The total thickness TRX may be greater than the second thickness T2. According to the manufacturing sequence, the first light-shielding strip140is stacked on the second light-shielding strip150, so the second thickness T2may be different from the first thickness T1. For example, the first thickness T1is less than the second thickness T2, but this is not limited thereto. It should be noted that for the definition of the thickness inFIG. 6, reference may be made to the definition of the thickness inFIG. 3, and the descriptions thereof are omitted herein.

In the present embodiment, the color filter pattern160may be divided into color filter patterns160A-160C, which respectively present different colors. The color filter pattern160B is made earlier than the color filter pattern160A, and also earlier than the color filter pattern160C. Therefore, at the boundary between the color filter pattern160A and the color filter pattern160B ofFIG. 6, the color filter pattern160A may be stacked on the color filter pattern160B. In addition, at the boundary between the color filter pattern160B and the color filter pattern160C, the color filter pattern160C may be stacked on the color filter pattern160B. However, in other embodiments, the color filter patterns160A-160C may have other stacking orders. In other embodiments, the adjacent two of the color filter patterns160A to160C may be spaced apart from each other without being in contact with each other. In addition, although three color types of the color filter pattern160are used as an example for description, this is not limited thereto. In some embodiments, the color filter patterns160A-160C may be made of the same or similar materials, so that the physical boundaries between each other may be less obvious.

FIG. 7is a schematic partial cross-sectional view of a member between a first substrate110and a medium130(not shown inFIG. 7) in an electronic device according to another embodiment of the disclosure. The cross-sectional cutting direction of the cross-sectional view ofFIG. 7is, for example, taken along one of the first light-shielding strips140inFIG. 2. The present embodiment is similar to the embodiment ofFIG. 6, and the constituent members of the two embodiments are substantially identical, but the stacking order of the members is different. In the present embodiment, the first light-shielding strip140, the color filter pattern160, the second light-shielding strip150, and the planarization layer170are sequentially stacked on the first substrate110. The first light-shielding strips140and the second light-shielding strips150are respectively disposed on both sides of the color filter pattern160, and both contact the color filter pattern160.

FIG. 8is a schematic partial cross-sectional view of a member between a first substrate110and a medium130(not shown inFIG. 8) in an electronic device according to yet another embodiment of the disclosure. The cross-sectional cutting direction of the cross-sectional view ofFIG. 8is, for example, taken along one of the first light-shielding strips140inFIG. 2. ReferringFIG. 8, in the present embodiment, a second light-shielding strip150, a first light-shielding strip140, a color filter patterns160, and a planarization layer170are sequentially stacked on the first substrate110, and another planarization layer180is further disposed between the first light-shielding strip140and the second light-shielding strip150. For the stacking order of the first light-shielding strip140, the second light-shielding strip150, and the color filter pattern160of the present embodiment, reference may be made to the embodiments ofFIG. 4toFIG. 6, and the descriptions thereof are omitted herein. A difference between the present embodiment and the embodiment ofFIG. 4mainly lies in that the present embodiment further includes a planarization layer180. The planarization layer180and the planarization layer170are for example, made of organic materials including materials such as perfluoroalkoxy polymer resin (PFA), fluoroelastomers, or the like. The planarization layer180and the planarization layer170may be made of different materials or may be made of the same material. The planarization layer180and the planarization layer170have, for example, a thicker thickness relative to the other layers to provide planarization. In other words, although there are other patterned members (for example, the second light-shielding strip150) between the planarization layer180and the first substrate110, the planarization layer180is disposed to provide a relatively flat surface on which the first light-shielding strip140is disposed. Similarly, although a plurality of members (the first light-shielding strip140, the color filter pattern160, etc.) with different patterns exists between the planarization layer170and the planarization layer180, the planarization layer170may be disposed away from one side of the first substrate110to provide a relatively flat surface.

The second light-shielding strip150overlaps the first light-shielding strip140, so that an overlapping region RX is defined. The overlapping region RX has a total thickness TRX, a portion of the first light-shielding strips140in the total thickness TRX is defined to have a first thickness T1, and a portion of the second light-shielding strips150in the total thickness TRX is defined to have a third thickness T3. One of the first light-shielding strips140has a second thickness T2in the first non-overlapping region NRX1. In some embodiments, the total thickness TRX may be a sum of the first thickness T1and the third thickness T3, and the total thickness TRX may be greater than the second thickness T2. In addition, in the cross-sectional structure (not shown inFIG. 8) of the other direction, the second light-shielding strip150in the second non-overlapping region NRX2(not shown inFIG. 8) outside the overlapping region RX has a fourth thickness T4, and the fourth thickness may also be less than the total thickness TRX. In the present embodiment, the first light-shielding strip140is disposed on the planarization layer180and may have a relatively uniform thickness, and therefore the second thickness T2and the first thickness T1may be equal to each other, but may also be slightly different. In addition, the second light-shielding strip150is disposed on the first substrate110, and therefore the third thickness T3and the fourth thickness (not shown) may also be equal to each other, but may also be slightly different.

FIG. 9is a schematic partial cross-sectional view of a member between a first substrate110and a medium130(not shown inFIG. 9) in an electronic device according to a further embodiment of the disclosure. The cross-sectional cutting direction of the cross-sectional view ofFIG. 9is, for example, taken along one of the first light-shielding strips140inFIG. 2. Referring toFIG. 9, in the present embodiment, the first light-shielding strip140, a color filter pattern160, a planarization layer170, and a second light-shielding strip150are sequentially stacked on the first substrate110. In such a stacking order, the color filter pattern160is located between the first light-shielding strip140and the second light-shielding strip150, and at least the color filter pattern160and the planarization layer170exist between the first light-shielding strip140and the second light-shielding strip150. The second light-shielding strip150overlaps the first light-shielding strip140, so that an overlapping region RX is defined. The overlapping region RX has a total thickness TRX, a portion of the first light-shielding strips140in the total thickness TRX is defined to have a first thickness T1, and a portion of the second light-shielding strips150in the total thickness TRX is defined to have a third thickness T3. One of the first light-shielding strips140has a second thickness T2in the first non-overlapping region NRX1. The total thickness TRX may be a sum of the first thickness T1and the third thickness T3, and the total thickness TRX may be greater than the second thickness T2. In addition, in the cross-sectional structure (not shown inFIG. 9) of the other direction, one of the second light-shielding strips150in the second non-overlapping region (not shown inFIG. 9) may have a fourth thickness (not shown inFIG. 9), and the fourth thickness (not shown inFIG. 9) may be less than the total thickness TRX. In the present embodiment, materials of the first light-shielding strip140and the second light-shielding strip150may include light-shielding materials such as black resin, ink, metal, and the like. In some embodiments, the first light-shielding strip140is closer to a user than the second light-shielding strip150, and therefore the first light-shielding strip140may select a material having a lower light reflectance to improve quality of the electronic device100. In addition, the second light-shielding strip150is farther away from the user, and the second light-shielding strip150is disposed to help block leaky light from the oblique viewing angle and help improve the quality of the electronic device100.

FIG. 10is a schematic partial cross-sectional view of a member between a first substrate110and a medium130(not shown) in an electronic device according to a further embodiment of the disclosure. The cross-sectional cutting direction of the cross-sectional view ofFIG. 10is, for example, taken along one of the first light-shielding strips140inFIG. 2. Referring toFIG. 10, the present embodiment is similar to the embodiment ofFIG. 9, where the first light-shielding strip140, a color filter pattern160, a planarization layer170, and a second light-shielding strip150are sequentially stacked on the first substrate110. In an embodiment, an interface layer192is disposed between the second light-shielding strip150and the planarization layer170. In another embodiment, an interface layer192and an interface layer194may be respectively disposed on two opposite sides of the second light-shielding strip150. The interface layer192is disposed between the second light-shielding strip150and the planarization layer170, and the second light-shielding strip150is disposed between the interface layer192and the interface layer194. In other words, the interface layer192, the second light-shielding strip150, and the interface layer194are sequentially stacked on the planarization layer170. The interface layer192is disposed between the second light-shielding strip150and the first substrate110. The interface layer192is disposed between the second light-shielding strip150and the first light-shielding strip140. The interface layer192is disposed between the second light-shielding strip150and a color filter pattern160.

In the present embodiment, the interface layer192and/or the interface layer194may have a contour corresponding to the second light-shielding strip150. For example, the interface layer192, the second light-shielding strip150, and/or the interface layer194may be patterned using the same photomask to have an approximate structure contour (for example, an elongated contour of the second light-shielding strip150inFIG. 2). For example, in the manufacturing process, the inorganic material, the metal material, and/or another inorganic material may be sequentially formed on the planarization layer170or the color filter pattern160through deposition, coating, printing, or the like. Next, the stack layer of the inorganic material, the metal material, and another inorganic material is patterned using the same photomask patterning to form the interface layer192, the second light-shielding strip150, and another interface layer194. The patterning method may include a lithography etching process. Upon completion of etching, the interface layer192and the second light-shielding strip150may be retracted relative to the interface layer194to form an undercut structure UC. In other embodiments, the interface layer192, the second light-shielding strip150, and the interface layer194may be respectively patterned using different steps. Therefore, the undercut structure UC may also not exist.

In the present embodiment, the second light-shielding strip150is made of materials including metal such as molybdenum, aluminum, chromium, or the like, or other suitable metal materials, or a combination of the foregoing, but this is not limited thereto. In some embodiments, the material of the second light-shielding strip150may be different from the material of the first light-shielding strip140. The interface layer192and/or the interface layer194may be made of materials including an inorganic material such as silicon nitride, silicon oxide, silicon oxynitride, indium tin oxide (ITO), or other inorganic materials, or other suitable transparent materials, but this is not limited thereto. Similar to the foregoing embodiments, the planarization layer170may be made of materials including an organic material, and the second light-shielding strip150and the interface layer192may include an inorganic material. The interface layer192is disposed between the second light-shielding strip150and the planarization layer170, helping improve stability of the second light-shielding strip150. In addition, the interface layer194covers the second light-shielding strip150, which also helps increase a protective effect (for example, increase the resistance to water and oxygen) of the second light-shielding strip150. The interface layer192is disposed between the second light-shielding strip150and a color filter pattern160. In addition, in other embodiments, the interface layer192and the second light-shielding strip150may be disposed on the second substrate120in the electronic device100ofFIG. 1.

Further, when the present embodiment is applied to the electronic device100ofFIG. 1, a spacer layer PS ofFIG. 1may be disposed on the interface layer194without contacting the second light-shielding layer150, and the interface layer194is disposed between the spacer layer PS and the second light-shielding layer150, which can help improve adhesion of the spacer layer PS. In addition, when the interface layer194is made of indium tin oxide (ITO) or other oxides of conductive properties, the interface layer194may not be patterned, and an entire surface is covered on the first substrate110. In this case, the interface layer194may be used as a counter electrode in the electronic device100.

FIG. 11is a schematic cross-sectional view of an electronic device according to still another embodiment of the disclosure. Referring toFIG. 11, the electronic device100A includes a first substrate110, a second substrate120, a medium130, a first light-shielding strip140, a second light-shielding strip150A, a color filter pattern160, and a planarization layer170. In the present embodiment, the stacking order of the first substrate110, the first light-shielding strip140, the color filter pattern160, and the planarization layer170and a correspondence between each other are substantially similar to the embodiment ofFIG. 9. Therefore, for specific structures of the first substrate110, the first light-shielding strip140, the color light pattern160, and the planarization layer170, reference may be made to the foregoing embodiment, and the descriptions thereof are omitted herein. In addition, the second light-shielding strips150A are for example, disposed on the second substrate120in the present embodiment. As shown inFIG. 11, the second light-shielding strips150A are located between the second substrate120and the first light-shielding strip140, and is specifically located between the second substrate120and the medium130. In addition, the electronic device100A further includes a spacer layer PS, and the space layer PS is located between the first substrate110and the second light-shielding strips150A.

In the present embodiment, the first light-shielding strips140are disposed on the first substrate110, the second light-shielding strips150A are disposed on the second substrate120, and the first light-shielding strip140and the second light-shielding strips150A are respectively located on opposite sides of the medium130. The second light-shielding strips150A may be made of materials including metal such as molybdenum, aluminum, chromium, or the like, or other suitable metal materials, or a combination of the foregoing, but this is not limited thereto. In some embodiments, the material of the second light-shielding strips150A may be different from the material of the first light-shielding strips140. The second light-shielding strips150overlap the first light-shielding strips140, so that an overlapping region RX is defined. The overlapping region RX has a total thickness TRX, a portion of the first light-shielding strips140in the total thickness TRX is defined to have a first thickness T1, and a portion of the second light-shielding strips150in the total thickness TRX is defined to have a third thickness T3. One of the first light-shielding strips140has a second thickness T2in the first non-overlapping region NRX1. The total thickness TRX may be a sum of the first thickness T1and the third thickness T3, and the total thickness TRX may be greater than the second thickness T2.

In the present embodiment, the first substrate110and members disposed thereon may constitute a color filter substrate, and the second substrate120and the members formed thereon may constitute an active component array substrate. Specifically, in addition to the second light-shielding strips150A, other members are further disposed on the second substrate120. For example,FIG. 12is a schematic cross-sectional view of an active component array substrate according to an embodiment of the disclosure. The active component array substrate TFT ofFIG. 12includes a second substrate120, a light-shielding layer LS, a semiconductor layer SE, a gate GE, a first source/drain SD1, a second source/drain SD2, a connection electrode CE, a pixel electrode PE, a second light-shielding strip150A, and an interface layer192A. In addition, the active component array substrate TFT further includes a plurality of insulating layers LA-LG disposed on the second substrate120.

It may be learned fromFIG. 12that the light-shielding layer LS is disposed on the second substrate120, and the insulating layer LA covers the light-shielding layer LS. In other words, the light-shielding layer LS is located between the second substrate120and the insulating layer LA. The semiconductor layer SE is disposed on the insulating layer LA, and the semiconductor layer SE may have a channel region CH. The insulating layer LB covers the semiconductor layer SE, and the gate electrode GE is disposed on the insulating layer LB. Both the gate GE and the light-shielding layer LS overlap the channel region CH in a third direction, where a signal on the gate GE may control carrier (electron or hole) mobility of the channel region CH, and the light-shielding layer LS may reduce light exposure to the channel region CH to reduce the chance of occurrence of a light leakage current in the channel region CH. The insulating layer LC covers the gate GE, and the first source/drain SD1and the second source/drain SD2are both disposed on the insulating layer LC. The first source/drain SD1may be in contact with and electrically connected to the semiconductor layer SE through a via VA1, and the second source/drain SD2may be in contact with and electrically connected to the semiconductor layer SE through a via VA2. The insulating layer LC covers the first source/drain SD1and the second source/drain SD2, and the connection electrode CE is disposed on the insulating layer LD. The connection electrode CE may be in contact with and electrically connected to the second source/drain SD2through a via VA3. The insulating layer LE covers the connection electrode CE, and the insulating layer LF covers the insulating layer LE, where the insulating layer LF may be thicker than the insulating layer LE to provide a planarization effect. The pixel electrode PE is disposed on the insulating layer LF, and is in contact with and electrically connected to the connection electrode CE through a via VA4. The insulating layer LG covers the pixel electrode PE, and the second light-shielding strip150A is disposed on the insulating layer LG. The interface layer192A is disposed on the insulating layer LG and covers the second light-shielding strip150A. In other words, the second light-shielding strip150A is located between the interface layer192A and the insulating layer LG.

When the active component array substrate TFT inFIG. 12is applied to the electronic device100A inFIG. 11, both the interface layer192A and the spacer layer PS may be located between the first light-shielding strip140and the second light-shielding strip150A, the spacer layer PS may be at least partially disposed at an intersection (that is, an overlapping region RX) of the first light-shielding strip140and the second light-shielding strip150A, and the interface layer192A is located between the second light-shielding strip150A and the spacer layer PS. In this way, the spacer layer PS does not contact the second light-shielding strip150A. The second light-shielding strip150A may be made of materials including metal such as molybdenum, aluminum, and chromium, etc., or other suitable metallic materials, or a combination of the foregoing, which is not limited thereto. In some embodiments, the material of the second light-shielding strips150A may be different from the material of the first light-shielding strips140. The interface layer192A is disposed between the spacer layer PS and the second light-shielding strip150A, which can help improve adhesion of the spacer layer PS. In addition, the interface layer192A may be made of indium tin oxide or other transparent conducting material. In other words, the interface layer192A may be a transparent conducting layer and may be electrically connected to a shared signal and used as a shared electrode in the active component array substrate TFT. In this case, the interface layer192A may have a plurality of slits (not shown) to achieve the design that a fringe field drives a pixel. In other embodiments, the interface layer192A may be, for example, silicon nitride, silicon oxide, silicon oxynitride, or other suitable transparent materials, which is not limited thereto.

FIG. 13Ais a partially schematic top view of a component between a first substrate110and a medium130(not shown inFIG. 13A) in an electronic device according to still another embodiment of the disclosure.FIG. 13Bis a partially schematic perspective view of a structure ofFIG. 13Ataken along line II-II, andFIG. 14is a schematic cross-sectional view of a structure ofFIG. 13Ataken along line II-II. Referring toFIG. 13A,FIG. 13B, andFIG. 14, in the present embodiment, a first light-shielding strip140, a color filter pattern160, a second light-shielding strip150B, and a planarization layer170are sequentially stacked on the first substrate110. The color filter pattern160may be divided into a color filter pattern160A, a color filter pattern160B, and a color filter pattern160C depending on colors. The second light-shielding strip150B may be disposed at a boundary BD1between the color filter pattern160B and the color filter pattern160C. In other words, the second light-shielding strip150B may not be disposed at a boundary BD2between the first color filter pattern160A and the second color filter pattern160B and at a boundary BD3between the first color filter pattern160A and the color filter pattern160C. The light-shielding strip140and/or the second light-shielding strip150B may be made of a material including a black matrix layer, a metallic material, or other appropriate materials with low light transmittance, or a combination of the foregoing. The material for manufacturing the second light-shielding strip150B herein may include a black matrix layer or a color resist. In addition, light transmittance of at least one of the first light-shielding strip140and the second light-shielding strip150B may be less than 0.1% or less than 0.01%, or even approximately 0%.

In the present embodiment, the second light-shielding strip150B may be made of a color resist that is the same as the material of the color filter pattern160A. For example, the color filter pattern160A may be manufactured after the color filter pattern160B and the color filter pattern160C are manufactured, and the second light-shielding strip150B may be manufactured while the color filter layer160A is being manufactured, thereby saving a number of processes. In some embodiments, the color filter pattern160A may be a blue filter pattern, one of the color filter pattern160B and the color filter pattern160C is a red filter pattern, and the other is a green filter pattern. In color space, luminance/luma of blue is lower than that of red and green. Therefore, the second light-shielding strip150B made of the blue filter pattern may provide a desired light-shielding effect. However, the foregoing selected colors are used as an example for description, which is not limited thereto. Although a light-shielding strip is not additionally disposed at the boundary BD2between the color filter pattern160A and the color filter pattern160B and the boundary BD3between the color filter pattern160A and the color filter pattern160C, in other embodiments, the second light-shielding strip150or150A described in the foregoing embodiment may be selectively disposed at the boundary BD2and the boundary BD3.

FIG. 15is a schematic top view of a first light-shielding strip and a second light-shielding strip in an electronic device according to another embodiment of the disclosure. Referring toFIG. 15, the first light-shielding strip140A is, for example, a bent member in the present embodiment. The second light-shielding strip150is an elongated member. In particular, the first light-shielding strip140A may include a first line segment142A and a second line segment144A. The first line segment142A may be a line segment extending along a first direction D1, and the second line segment144A may be a line segment extending along a second direction D2. However, the first light-shielding strip140A still mainly extends along the first direction D1. The second light-shielding strip150extends along the second direction D2, the second light-shielding strip150may overlap the second line segment144A of the first light-shielding strip140A, and the second light-shielding strip150may overlap a portion of the first line segment142A. In some embodiments, the second light-shielding strip150may completely block the second line segment144A of the first light-shielding strip140A, which is not limited thereto. Pixel regions RP that are arranged in a staggered manner may be defined using the first bent light-shielding strip140A. For example, inFIG. 15, one of two adjacent pixel regions RP is disposed at an upper location and the other is disposed at a lower location. In this way, the pixel regions RP may be arranged more flexibly and change greatly. In any of the foregoing embodiments, design of the first light-shielding strip140A may be used, and a bent structure may be disposed in the top view.

In all of the foregoing embodiments, the first light-shielding strip and the second light-shielding strip in the electronic device may be made of different film layers. Therefore, a method for manufacturing an electronic device according to an embodiment of the disclosure is shown inFIG. 16. In a step210, a first light-shielding strip is disposed on a first substrate. The first light-shielding strip may extend along a first direction. The first substrate may be a light transmissive substrate as described in the foregoing embodiments. In some embodiments, the first light-shielding strip may be made of a photoresist material. In this case, the method for manufacturing the first light-shielding strip may include: first coating the photoresist material on the first substrate, and then patterning the photoresist material layer using a lithography (yellow light) process, so as to obtain the first light-shielding strip after the photoresist material is developed and solidified. In other embodiments, the first light-shielding strip may be made of metal. In this case, the method for manufacturing the first light-shielding strip may include: first depositing the metal material on the first substrate, and then patterning a metal material layer on the first substrate, where a method for patterning the metal material layer includes, for example, a photolithography etching process or other suitable processes.

In step220, a second substrate may be provided, and a second light-shielding strip is disposed between the first substrate and the second substrate. The second light-shielding strip may extend along a second direction, and the first direction may be different from the second direction. The second substrate herein may also be a light transmissive substrate. A method for manufacturing the second light-shielding strip is similar to the foregoing method for manufacturing the first light-shielding strip. When the second light-shielding strip is made of a photoresist material, the second light-shielding strip may be manufactured, for example, through a lithography process. When the second light-shielding strip is made of a metal material, the second light-shielding strip may be manufactured, for example, through a deposition process and the photolithography process. When the second light-shielding strip is manufactured on the first substrate, structures of the second light-shielding strip and the first light-shielding strip may be shown in any of the foregoingFIG. 6toFIG. 10,FIG. 13A,FIG. 13B, andFIG. 14. When the second light-shielding strip is manufactured on the second substrate, structures of the second light-shielding strip and the first light-shielding strip may be shown in any of the foregoingFIG. 11andFIG. 12. Distribution and arrangement of the first light-shielding strip and the second light-shielding strip in a top view may be shown inFIG. 2orFIG. 15. In addition, a manufacturing order of step210and step220may be adjusted depending on different demands. In some embodiments, step220may be performed before step210, and in other embodiments, step210may be performed before step220.

In step230, the first substrate and the second substrate are paired. In particular, the first substrate and the second substrate are paired after the first light-shielding strip and the second light-shielding strip are manufactured. In some embodiments, a spacer layer may be disposed between the first substrate and the second substrate, and the first substrate is paired together using a sealant. The spacer layer may be the spacer layer PS as described in the foregoing embodiments, which separates the first substrate from the second substrate by a certain distance. The sealant is a solidified adhesive material. For example, the sealant may enclose a frame-shaped pattern, and a medium is filled into a space surrounded by the sealant before the sealant is completely solidified. Next, the first substrate and the second substrate may be configured to clamp the sealant and solidify the sealant. In some embodiments, the sealant may be a discontinuous structure, which is not limited thereto. When the medium is a liquid crystal material, a method for filling the medium may include a dropping injection method or a vacuum injection method. When the medium is an organic light-emitting material, the medium may be manufactured through evaporation or printing. In addition, in some embodiments, the medium may be a film-like structure, such as an electrophoretic film, and the medium may be attached to the first substrate or the second substrate.

Following step230, a plurality of first light-shielding strips and a plurality of second light-shielding strips may be located between the first substrate and the second substrate. The plurality of first light-shielding strips extends along the first direction, and the plurality of second light-shielding strips extends along the second direction, the first direction intersecting the second direction. In addition to the foregoing step210and step220, before step230is performed, members such as a color filter pattern, a planarization layer, and an interface layer may further be disposed on the first substrate. In addition, the structure shown inFIG. 12may also be disposed on the second substrate. Definitely, before the step230is performed, other necessary structures may further be formed between the first substrate and the second substrate, which is not limited thereto in the disclosure.

Based on the above, according to the electronic device of the embodiments of the disclosure, the first light-shielding strip and the second light-shielding strip are respectively manufactured using different film layers, and the first light-shielding strip overlaps the second light-shielding strip, so that an overlapping region is defined. In the overlapping region, because the first light-shielding strip overlaps the second light-shielding strip, a total thickness of the first light-shielding strip and the second light-shielding strip in the overlapping region is different from a thickness of the first light-shielding strip in a non-overlapping region, and the total thickness is also different from a thickness of the second light-shielding strip in the non-overlapping region. Therefore, the first light-shielding strip and the second light-shielding strip are disposed in the embodiments of the disclosure, which helps improve quality of the electronic device.