TWI681560B - Display panel and manufacturing method thereof - Google Patents

Abstract

A display panel includes a first substrate and a second substrate assembled together, a display medium layer between the first and second substrates, a sealant between the first and second substrates and surrounding the display medium layer, a first alignment layer between the first substrate and the display medium layer, a second alignment layer between the second substrate and the display medium layer, and a hydrophobic surface. One of the first alignment layer and the second alignment layer has an individual central portion. The hydrophobic surface extends from an edge of the individual central portion toward an edge of the one of the first substrate and the second substrate. The sealant at least extends between the hydrophobic surface and the edge of the one of the first substrate and the second substrate. The hydrophobic surface includes a hydrophobic material that is more hydrophobic than the individual central portion.

Description

Display panel and its manufacturing method

The invention relates to an electronic device, and in particular to a display panel.

The liquid crystal display panel generally includes a display medium layer, which includes a liquid crystal material, and the liquid crystal material includes liquid crystal molecules. In the manufacturing process of the liquid crystal display panel, the display medium layer is connected or assembled together by a frame glue or adhesive and sandwiched between the top substrate and the bottom substrate. The process usually includes dropping a liquid crystal liquid including liquid crystal molecules on a top substrate or a bottom substrate by a dispenser or an ink-jet printer. When using a curable material as a sealant or adhesive, before the sealant cures, the liquid crystal molecules may come into contact with the uncured sealant. Such contact may affect the physical properties of the liquid crystal material, for example, its resistivity or ion content. In other words, the performance of the display may be adversely affected by contaminants formed when the liquid crystal molecules are in contact with the uncured sealant.

A display panel and its manufacturing method are described. The display panel uses a hydrophobic surface to prevent or reduce the contamination of the display medium layer due to contact with the uncured sealant, which may adversely affect the performance of the display.

The present invention provides a display panel, which includes a first substrate, a second substrate, a display medium layer, a sealant, a first alignment layer, a second alignment layer, and a hydrophobic surface. The second substrate is assembled with the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The sealant is disposed between the first substrate and the second substrate and surrounds the display medium layer. The first alignment layer is disposed on the first substrate and between the first substrate and the display medium layer. The second alignment layer is disposed on the second substrate and between the second substrate and the display medium layer. One of the first alignment layer and the second alignment layer has an independent central portion. The hydrophobic surface extends from the edge of the independent central portion toward the edge of one of the first substrate and the second substrate. The sealant extends at least between the hydrophobic surface and the edge of one of the first substrate and the second substrate. The hydrophobic surface includes a hydrophobic material that is more hydrophobic than the independent central portion.

In some embodiments of the invention, the sealant covers the hydrophobic surface.

In some embodiments of the invention, the sealant partially covers the independent central portion.

In some embodiments of the present invention, one of the first alignment layer and the second alignment layer further includes an outer portion. The gap separates the outer part from the independent central part. The hydrophobic surface extends in the gap.

In some embodiments of the invention, the independent central portion and the sealant are separated by the gap, and the hydrophobic surface extends in the gap.

In some embodiments of the invention, the boundary between the independent central portion and the hydrophobic surface is aligned with the edge of the sealant.

In some embodiments of the present invention, the display panel further includes a bottom surface hydrophobic surface disposed under the independent central portion. The underlying hydrophobic surface includes the same material as the hydrophobic surface.

In some embodiments of the present invention, the display panel further includes an outer hydrophobic surface extending between the hydrophobic surface and the edge of one of the first substrate and the second substrate. The outer hydrophobic surface includes the same material as the hydrophobic surface.

In some embodiments of the present invention, the display panel further includes an inorganic layer disposed on one of the first substrate and the second substrate. A part of the inorganic layer has a top surface as a hydrophobic surface.

In some embodiments of the invention, another portion of the inorganic layer overlaps the independent central portion.

In some embodiments of the present invention, a part of the inorganic layer and another part of the inorganic layer continuously extend between one of the first substrate and the second substrate and one of the first alignment layer and the second alignment layer.

In some embodiments of the present invention, the thickness of the inorganic layer is different from the thickness of one of the first alignment layer and the second alignment layer.

In some embodiments of the present invention, the thickness of the inorganic layer is substantially the same as the thickness of one of the first alignment layer and the second alignment layer.

In some embodiments of the present invention, the display panel further includes a first inorganic layer and a second inorganic layer disposed on one of the first substrate and the second substrate. The first inorganic layer is disposed between the second inorganic layer and one of the first alignment layer and the second alignment layer. The first inorganic layer has a gap, which exposes a part of the second inorganic layer. The top surface of a part of the second inorganic layer serves as a hydrophobic surface.

In some embodiments of the present invention, the hydrophobic material includes silane, fluorinated silane, long-chain alcohol or acid.

The invention further provides a method for manufacturing a display panel, which includes the following steps. A first substrate and a second substrate are provided. An alignment material layer is formed on one of the first substrate and the second substrate and each alignment material layer is patterned to form an independent central portion. Forms a hydrophobic surface. The hydrophobic surface extends from the edge of the independent central portion toward the edge of one of the first substrate and the second substrate. A sealant material is formed on one of the first substrate and the second substrate. The gap separates the sealant material from the independent central portion, and the hydrophobic surface extends in the gap. Drop the display media material on the independent central part. The display medium material is limited by the hydrophobic surface and does not come into contact with the sealant material. The first substrate and the second substrate are assembled by a sealant material. The sealant material is cured to form the sealant.

In some embodiments of the invention, a portion of one of the first substrate and the second substrate is hydrophobically modified to form a hydrophobic surface, and the gap exposes a portion of one of the first substrate and the second substrate.

In some embodiments of the present invention, the method further includes forming an inorganic layer on one of the first substrate and the second substrate, wherein the inorganic layer is exposed in the gap between the independent central portion and the sealant material.

In some embodiments of the invention, the inorganic layer is hydrophobically modified to form a hydrophobic surface.

In some embodiments of the present invention, the alignment material layer is completely coated on one of the first substrate and the second substrate, and cured and patterned to form an alignment layer, the alignment layer includes an independent central portion and an outer portion, The gap separates the outer part from the independent central part.

In some embodiments of the invention, a portion of one of the first substrate and the second substrate is hydrophobically modified to form a hydrophobic surface, wherein the gap exposes the portion.

Based on the above, the hydrophobic surface at least prevents or reduces the contamination of the display medium layer by the uncured sealant. The edges of the independent central portion of one of the first alignment layer and the second alignment layer can also help achieve the same effect. Therefore, the hydrophobic surface prevents or reduces the deterioration of the performance of the display, which may be due to the contamination of the display medium layer caused by the contact of the display medium layer with the uncured sealant.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

Hereinafter, reference numerals will be appended to describe the preferred embodiments of the present invention in detail, and are illustrated in the drawings. Where possible, the same or similar components will be shown with the same reference numbers in the drawings.

FIG. 1 schematically illustrates a top view of some components of the display panel DP. Referring to FIG. 1, the display panel DP includes a first substrate SB1, a second substrate SB2, a sealant SL, a display medium layer (not shown in FIG. 1), a first alignment layer AL1 with an independent central portion ICP, and a second alignment layer AL2 and hydrophobic surface HS. Fig. 1 only shows the relative arrangement and position of the components seen from above, and does not show the stacking relationship between the components. In this embodiment, the first substrate SB1 and the second substrate SB2 are stacked up and down, and the shapes of the two substrates seen from above may be substantially the same, so the outline of the first substrate SB1 and the outline of the second substrate SB2 are as shown in FIG. Align as shown in 1. The independent central portion ICP and the hydrophobic surface HS of the first alignment layer AL1 may be disposed on one of the first substrate SB1 and the second substrate SB2 and face the other of the first substrate SB1 and the second substrate SB2, while the second The alignment layer AL2 is provided on the other of the first substrate SB1 and the second substrate SB2. The sealant SL may be disposed between the first substrate SB1 and the second substrate SB2 to completely surround the display medium layer, so the display medium layer and the sealant SL are sandwiched between the first substrate SB1 and the second substrate SB2.

As shown in FIG. 1, the hydrophobic surface HS abuts and completely surrounds the independent central portion ICP, and extends a width W outward from the independent central portion ICP. The hydrophobic surface HS includes a hydrophobic material that is more hydrophobic than the independent central portion ICP of the first alignment layer AL1. The sealant SL extends at least between the hydrophobic surface HS and the edge of the first substrate SB1 or the second substrate SB2. In this embodiment, the inner edge of the sealant SL is aligned with the outer edge of the hydrophobic surface HS. However, the present invention is not limited to this. In some embodiments, the sealant SL may extend inward to at least partially cover the hydrophobic surface HS or may extend more inward to also cover the outer portion of the independent center portion ICP of the first alignment layer AL1.

Viewed from above, the hydrophobic surface HS and the sealant SL may have a frame-like pattern. At least the central area of the display panel DP is surrounded by the sealant SL, and the first alignment layer AL1 and the second alignment layer AL2 are in contact with the display medium layer. In some embodiments, the display medium layer is a liquid crystal layer, and the first alignment layer AL1 and the second alignment layer AL2 can align liquid crystal molecules and cause a pre-tilt angle of the liquid crystal molecules.

2 is a schematic cross-sectional view of a display panel 100 according to an embodiment of the invention. Referring to FIG. 2, the display panel 100 includes a first substrate 110, a second substrate 120, a sealant 106, a display medium layer 107, a first alignment layer 101 having an independent central portion 101a, a second alignment layer 102, and a hydrophobic surface 105. The display panel 100 may have a top view similar to the display panel DP in FIG. 1, where the first alignment layer AL1 in FIG. 1 may present a top view of the independent central portion 101 a of the first alignment layer 101. In other words, the display panel 100 shown in FIG. 2 is similar to the display panel DP shown in FIG. 1. A further description with the same details of the display panel 100 depicted in FIG. 2 and the display panel DP already described in FIG. 1 may be omitted.

In FIG. 2, the first substrate 110 and the second substrate 120 are arranged opposite to each other, and the sealant 106 is disposed between the first substrate 110 and the second substrate 120. Specifically, the first substrate 110 and the second substrate 120 are assembled with each other by the sealant 106. The display medium layer 107 is disposed between the first substrate 110 and the second substrate 120 and surrounded by the sealant 106. The display medium layer 107 is surrounded by the first substrate 110, the second substrate 120 and the sealant 106. The material of the display medium layer 107 may be a liquid crystal material, so the first substrate 110, the second substrate 120, the display medium layer 107, and the sealant 106 may serve as liquid crystal cells.

The first alignment layer 101 is disposed between the first substrate 110 and the display medium layer 107. In this specific embodiment, the first alignment layer 101 is composed of an independent central portion 101a. The hydrophobic surface 105 of the first substrate 110 extends a width W outward from the edge of the independent central portion 101a toward the edge of the first substrate 110. The hydrophobic surface 105 of FIG. 2 may have a top view similar to the hydrophobic surface HS shown in FIG. 1, except that the sealant 106 of FIG. 2 may extend to overlap the hydrophobic surface 105. The inner edge of the sealant 106 is aligned with the boundary between the independent central portion 101a and the hydrophobic surface 105. The second alignment layer 102 is disposed between the second substrate 120 and the display medium layer 107. The properties of the first alignment layer 101 (including its material) may be the same as the properties of the second alignment layer 102, but the present invention is not limited thereto.

The first substrate 110 may include a first support plate 114 and an electrode layer 116 provided on the first support plate 114. The electrode layer 116 completely covers the surface of the first support plate 114 facing the display medium layer 107; alternatively, the electrode layer 116 may be patterned as needed. The material of the first support plate 114 may be glass, quartz, or the like. The material of the electrode layer 116 may be a transparent conductive material, for example, indium tin oxide (ITO). The first alignment layer 101 is disposed on the electrode layer 116 and is opposed to the first support plate 114.

The second substrate 120 may be a transistor array substrate, which includes a second support plate 124, an active layer 126 and a protective layer 128. The active layer 126 is disposed between the second support plate 124 and the display medium layer 107, and the protective layer 128 is disposed between the active layer 126 and the display medium layer 107. The second support plate 124 may be a glass plate, a silicon backplane (silicon backplane), or the like. The active layer 126 may be a transistor array, for example, a thin film transistor array or a complementary metal-oxide semiconductor (complementary metal-oxide semiconductor, CMOS) element array. The protective layer 128 may include oxide or nitride or other corrosion-resistant materials for protecting the active layer 126 from corrosion. The active layer 126 and the electrode layer 116 may provide a driving electric field to drive the display medium layer 107. In some embodiments, the display panel 100 may be a thin-film transistor liquid crystal display (TFT-LCD) panel or a liquid crystal on silicon (LCoS) display panel. In some alternative embodiments, based on the driving circuit design of the display panel 100, the electrode layer 116 may be omitted.

The first alignment layer 101 is provided between the electrode layer 116 and the display medium layer 107. The first alignment layer 101 is disposed on the electrode layer 116, and the electrode layer 116 is sandwiched between the first alignment layer 101 and the first support plate 114.

The second alignment layer 102 is disposed on the protective layer 128 and between the protective layer 128 and the display medium layer 107. In this specific embodiment, the second alignment layer 102 completely covers the side of the second substrate 120 facing the display medium layer 107.

3A to 3E are schematic cross-sectional views of a method of manufacturing a display panel 200 according to an embodiment of the invention. The manufacturing method of the display panel 200 of FIG. 3E may include the following steps, but the present invention is not limited thereto, and the order of the steps is not limited to the order of steps presented here.

3A, a first substrate 110 is provided, which includes a first support plate 114 and an electrode layer 116 disposed on the first support plate 114. The first substrate 110 may be similar to that depicted in FIG. 2. The first alignment material layer 101m is provided on the electrode layer 116 of the first substrate 110. The material of the first alignment material layer 101m may be organic (for example, thermally or UV-curable polyimide) or inorganic (for example, silicon oxide, zinc oxide, or a combination thereof).

3B, the first alignment material layer 101m is patterned to form the first alignment layer 201. However, the present invention is not limited to this. In other embodiments, the first alignment layer 201 may be directly formed into a desired pattern, and then the patterning step after the forming step is omitted. In this specific embodiment, the first alignment layer 201 is composed of an independent central portion 101a and an outer portion 101b separated from the independent central portion 101a by a gap 101g. However, the present invention is not limited to this. In other embodiments, the first alignment layer may have different patterns. The first alignment layer 201 may be similar to the first alignment layer 101 depicted in FIG. 2 in other respects. In some embodiments, the material of the first alignment material layer 101m is organic, and the first alignment layer 201 may be formed by a wet process, for example, spin coating method, slit coating method (slit coating method) ), flexographic coating (APR coating) or inkjet printing. The raw material used may include polyamic acid or polyimide, and then it may be cured to form the first alignment layer 201. The organic material of the first alignment layer 201 may include thermally cured or UV cured polyimide. In some embodiments, the material of the first alignment material layer 101m is inorganic, and the first alignment layer 201 may be, for example, by a sol-gel process or thermal evaporation of the desired material Formation, for example, obliquely deposited silicon oxide (SiOx), nanostructured zinc oxide (ZnO) or nanoporous anodic aluminum oxide (nanoporous anodic aluminium oxide). The first alignment material layer 101m of the inorganic material may be patterned by etching, including wet etching or dry etching (eg, laser etching or plasma etching) to produce the first alignment layer 201. Alternatively, the first alignment layer 201 of an inorganic material may be directly formed in a desired pattern by, for example, using a shadow mask to mask areas where the material of the first alignment layer 201 is not needed during the thermal evaporation process. In some embodiments, the first alignment layer 201 may have a thickness between about 200 nm and 2000 nm.

3C, the surface of the electrode layer 116 exposed by the gap 101g is subjected to hydrophobic modification to form a hydrophobic surface 105. The hydrophobic surface 105 may be similar to that depicted in FIG. 2. The hydrophobic modification of the surface of the electrode layer 116 can be performed by, for example, chemical vapor deposition or inkjet printing, where a hydrophobic material is provided on the surface. The hydrophobic material may include silane, fluorinated silane, long-chain alcohol or acid. The hydrophobic surface 105 is more hydrophobic than the first alignment layer 201 and may have a water contact angle greater than 60 degrees.

Referring to FIG. 3D, the sealant material 106m is formed on the first substrate 110, wherein the gap 101g separates the sealant material 106m from the independent central portion 101a of the first alignment layer 201. In this specific embodiment, the sealant material 106m is formed on the outer portion 101b of the first alignment layer 201. A display medium material 107m (for example, a liquid crystal material) is provided on the independent center portion 101a of the first alignment layer 201. The diffusion or flow of the display medium material 107m is restricted by the hydrophobic surface 105, so the display medium material 107m will not contact the sealant material 106m. The display medium material 107m can be disposed on the independent central portion 101a by a liquid crystal drop injection (ODF) process, but the invention is not limited thereto.

In some embodiments, the display panel 100, the display panel 200, or the display panel described below may be manufactured by a mother panel. The mother board may include multiple display units, and each display unit of the mother board is cut from one mother board. During the liquid crystal drop injection method (ODF) process, the display medium material is sequentially dropped on each display unit. Therefore, some display units are dropped into the display medium material earlier than others, so that during the dropping step of the display medium material, the display medium material is in contact with the uncured sealant material longer in some display units. However, in this embodiment, the hydrophobic surface 105 limits the diffusion of the display medium material 107m, and minimizes the contact of the display medium material 107m with the uncured sealant material 106m. Therefore, the contamination of the display medium material 107m and the uncured sealant material 106m can be avoided or minimized.

3E, a second substrate 120 is provided, which includes a second support plate 124, an active layer 126, and a protective layer 128. The second alignment layer 102 is formed on the protective layer 128 of the second substrate 120. The second substrate 120 and the second alignment layer 102 may be similar to those depicted in FIG. 2. The material of the second alignment layer 102 may be the same as the material of the first alignment layer 201, but the invention is not limited thereto. The forming process of the second alignment layer 102 may be different from the forming process of the first alignment layer 201, and the difference is that the formed pattern may be different. For example, in this specific embodiment, the second alignment layer 102 completely covers the top surface of the protective layer 128 without any further patterning.

After that, the first substrate 110 and the second substrate 120 are assembled with the sealant material 106m. The sealant material 106m may include a curable material, for example, a photo-curable material or a heat-curable material. After the first substrate 110 and the second substrate 120 are joined by the sealant material 106m, a photo-curing or thermal curing step may be performed to form the sealant 206. The display medium material 107m may fill the display medium space surrounded by the sealant 206, the first substrate 110, and the second substrate 120 to form a display medium layer 207. The sealant 206 and the display medium layer 207 may be similar to the sealant 106 and the display medium layer 107 of the display panel 100 of FIG. 2.

The surface 101 aT of the first alignment layer 201 and the surface 102T of the second alignment layer 102 directly contact the display medium layer 207. In some embodiments, the material of the first alignment layer 201 and the second alignment layer 102 is silicon oxide, and before the assembly of the display panel 200, the surface 101aT can be cleaned, for example, by a wet cleaning process using a water jet method And at least one of the surfaces 102T. Compared with the water contact angle between 20 degrees and 40 when not cleaned, the surface 101aT and the surface 102T may have a water contact angle of about 5 degrees or less after cleaning. A smaller water contact angle may facilitate a uniform pre-tilt angle of the material (eg, liquid crystal) of the display medium layer 207.

Similarly, before using the sealant 206 to assemble the first substrate 110 and the second substrate 120, the amount and position of the display dielectric material 107m and the sealant material 106m deposited on the first alignment layer 201 can be adjusted (as shown in FIG. 3) Shown) so that the sealant 206 and the display medium layer 207 in the display panel 200 reach the desired size and position after assembly. During the assembly step, the first substrate 110 and the second substrate 120 may be positioned on opposite sides of the sealant material 106m, and the sealant material 106m may be compressed and cured. Therefore, the width of the cured sealant 206 may be different from the uncured sealant material 106m. In the specific embodiment shown in FIG. 3E, after compression and curing, the sealant 206 of the display panel 200 covers the hydrophobic surface 105, partially covers the independent central portion 101a of the first alignment layer 201, and faces the first alignment layer 201 The outer edge of the outer portion 101b extends. The area of the sealant 206 covering a part of the independent central portion 101a, the hydrophobic surface 105, and the part of the outer portion 101b is substantially the same as the relative area of the sealant 206 covering a part of the second alignment layer 102. The display panel 100 of FIG. 2 can be manufactured by a method similar to that depicted in FIGS. 3A to 3E, except that at least the amount of the sealant material 106m and the drop position of the display medium material 107m can be adjusted. The cured sealant 106 does not cover the top surface of the independent central portion 101a of the first alignment layer 101.

4 to 8 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 4 to FIG. 8, each of the display panels 300 to 700 is similar to the display panel 200 of FIG. 3E. Each of the display panels 300 to 700 includes a first substrate 110, a second substrate 120, and a hydrophobic surface 105. The display panel 300 in FIG. 4 further includes a sealant 306, a display medium layer 207, a first alignment layer 301 having a separate central portion 101a and an outer portion 301b, and a second alignment layer 102. The display panel 400 in FIG. 5 further includes a sealant 406, a display medium layer 207, a first alignment layer 201 having an independent central portion 101a and an outer portion 101b, and a second alignment layer 202. The display panel 500 in FIG. 6 further includes a sealant 506, a display medium layer 207, a first alignment layer 201 having an independent central portion 101a and an outer portion 101b, and a second alignment layer 302. The display panel 600 in FIG. 7 further includes a sealant 606, a display medium layer 307, a first alignment layer 201 having a separate central portion 101a and an outer portion 101b, and a second alignment layer 102. The display panel 700 in FIG. 8 further includes a sealant 706, a display medium layer 407, a first alignment layer 201 having a separate central portion 101a and an outer portion 101b, and a second alignment layer 102. The first substrate 110, the second substrate 120, each sealant, each display medium layer, each first alignment layer, each second alignment layer, and the hydrophobic surface 105 may be similar to those depicted in FIG. 3E. The respective display panels 300 to 700 of FIGS. 4 to 8 will be described in order, and the same details as the display panel 200 of FIG. 3E will be omitted.

Referring to FIG. 4, the display panel 300 differs from the display panel 200 of FIG. 3E in that the outer portion 301 b of the first alignment layer 301 extends from the hydrophobic surface 105 toward the edge of the first substrate 110, but does not reach the outside of the first substrate 110 edge. Particularly in this embodiment, the sealant 306 of the display panel 300 covers the top surface and side surfaces of the outer portion 301b exposed after the formation of the first alignment layer 301. However, the present invention is not limited to this. The first alignment layer 301 is formed in a similar manner to the first alignment layer 201 of the display panel 200 of FIG. 3E, in which, as described in the formation of the gap 101g in FIG. 3B, the first alignment layer 301 is formed or directly forms a desired pattern Then pattern into the desired pattern.

Referring to FIG. 5, the display panel 400 differs from the display panel 200 of FIG. 3E in that the edge of the second alignment layer 202 extends toward the edge of the second substrate 120, but does not reach the edge of the second substrate 120. Particularly in this embodiment, the sealant 406 and the display medium layer 207 cover the top and side surfaces of the second alignment layer 202 exposed after the second alignment layer 202 is formed. However, the present invention is not limited to this. In some embodiments, the sealant covering the second alignment layer 202 may be narrower, leaving a portion of the second alignment layer 202 exposed. The second alignment layer 202 is formed in a similar manner to the first alignment layer 201 of the display panel 200 of FIG. 3E, in which the second alignment layer 202 is patterned into a desired pattern after forming or directly forming a desired pattern.

Referring to FIG. 6, the display panel 500 differs from the display panel 200 of FIG. 3E in that the edge of the second alignment layer 302 is aligned with the edge of the display medium layer 207. In other words, the second alignment layer 302 extends in the area surrounded by the sealant 506. Therefore, the sealant 506 does not overlap with the second alignment layer 302. The second alignment layer 302 is formed in a similar manner to the first alignment layer 201 of the display panel 200 of FIG. 3E, in which the second alignment layer 302 is patterned into a desired pattern after forming or directly forming a desired pattern.

Referring to FIG. 7, the display panel 600 differs from the display panel 200 of FIG. 3E in that the display medium layer 307 and the sealant 606 partially cover the hydrophobic surface 105. The formation of the display medium layer 307 and the sealant 606 is similar to the display medium layer 207 and the sealant 206 of the display panel 200 of FIG. 3E.

Referring to FIG. 8, the display panel 700 differs from the display panel 200 of FIG. 3E in that the inner edge of the sealant 706 is aligned with the boundary between the outer portion 101b of the first alignment layer 201 and the hydrophobic surface 105, and the display medium layer 407 The hydrophobic surface 105 is at least partially covered. The formation of the display medium layer 407 and the sealant 706 is similar to the display medium layer 207 and the sealant 206 of the display panel 200 of FIG. 3E.

9A to 9D are schematic cross-sectional views of a method of manufacturing a display panel 800 according to an embodiment of the invention. The manufacturing method of the display panel 800 of FIG. 9D may include the following steps, but the present invention is not limited thereto, and the order of the steps is not limited to the order of steps presented here. The manufacturing method in FIGS. 9A to 9D will be described and the same details as the manufacturing method of the display panel 200 of FIGS. 3A to 3E already described will be omitted.

9A, a second substrate 120 is provided, which includes a second support plate 124, an active layer 126, and a protective layer 128. The second substrate 120 may be similar to that depicted in FIG. 2 or FIG. 3E. The second alignment material layer 102m is disposed on the protective layer 128 of the second substrate 120. The second alignment material layer 102m (including its material) may be as described above for the first alignment material layer 101m of FIG. 3A.

Referring to FIG. 9B, the second alignment material layer 102m is patterned to form a second alignment layer 402 having an independent central portion 402a and an outer portion 402b separated from the independent central portion 402a by a gap 402g. The second alignment layer 402 may be formed, patterned, and have properties including the thickness thereof as described above for the first alignment layer 201 related to FIGS. 3A to 3B.

Referring to FIG. 9C, in a manner similar to that described above with respect to FIGS. 3C to 3D, the sealant material 106m and the hydrophobic surface 105 are formed on the second substrate 120, and the display medium material 107m is disposed at an independent central portion On 402a, in FIG. 9C, the second substrate 120 and the second alignment layer 402 replace the first substrate 110 and the first alignment layer 201, respectively. The sealant material 106m, the hydrophobic surface 105, and the display medium material 107m may be similar to those depicted in FIGS. 3C to 3D.

Referring to FIG. 9D, a first substrate 110 is provided, which has a first alignment layer 801 completely covering its top surface. The first substrate 110 and the first alignment layer 801 may be similar to the corresponding parts depicted in FIG. 3E in other respects. Then, as described above with respect to FIG. 3E, the first substrate 110 and the second substrate 120 are assembled by the sealant 206 formed of the sealant material 106m. This method results in the display panel 800 having a hydrophobic surface 105 on the second substrate 120, that is, on the opposite substrate in the display panel 200 shown in FIG. 3E. In this embodiment, the sealant 206 may cover the hydrophobic surface 105 and a portion of the independent central portion 402a in the gap 402g, similar to the sealant 206 of FIG. 3E covering the hydrophobic surface 105 and a portion of the independent central portion 101a in the gap 101g. In some embodiments, the sealant 206 may selectively extend to the edge of the independent central portion 402a (as shown in FIG. 2 as the sealant 106), and selectively expose a portion of the gap 402g (as shown in FIG. 7) Frame 606), or aligned with the boundary between the gap 402g and the outer portion 402b (frame 706 shown in FIG. 8). In addition, in some embodiments, the outer portion 402 b of the second alignment layer 402 may be omitted, and the sealant 206 may be in contact with the protective layer 128 in the outer area of the hydrophobic surface 105. Alternatively, the outer portion 402b of the second alignment layer 402 may not extend to the edge of the second substrate 120, and the sealant 206 may cover the top and side surfaces of the outer portion 402b.

10A to 10D are schematic cross-sectional views of a method of manufacturing a display panel 900 according to an embodiment of the invention. The manufacturing method of the display panel 900 of FIG. 10D may include the following steps, but the present invention is not limited thereto, and the order of the steps is not limited to the order of steps presented here. The manufacturing method depicted in FIGS. 10A to 10D will be described and the same details as the manufacturing method of the display panel 200 of FIGS. 3A to 3E already described will be omitted.

10A and 10B, a first substrate 110 is provided, which includes a first support plate 114 and an electrode layer 116. The first substrate 110 may be similar to that depicted in FIG. 2 or FIG. 3E. In this embodiment, the inorganic layer 103 is provided on the electrode layer 116. The inorganic layer 103 can be formed by evaporation, sputtering, or atomic layer deposition (ALD). The material of the inorganic layer 103 may be oxide, metal oxide, or a combination thereof, and may include silicon oxide, titanium oxide, aluminum oxide, and the like. In some embodiments, the inorganic layer 103 may be a stacked structure having more than one inorganic material. The formation of the first alignment layer 901 and its properties are as described above for the first alignment layer 201 related to FIGS. 3A to 3B. In this specific embodiment, the inorganic layer 103 is thinner than the first alignment layer 901. In the present embodiment, the first alignment layer 901 includes an independent central portion 901a and an outer portion 901b, and a gap 901g is formed in the first alignment layer 901 to separate the independent central portion 901a from the outer portion 901b. As shown in FIG. 10B, the gap 901g exposes at least a part of the inorganic layer 103.

Please refer to FIG. 10C for hydrophobic surface treatment. The material of the inorganic layer 103 may be different from the material of the first alignment layer 901, and its chemical reactivity to the hydrophobic material used to form the hydrophobic surface 105 may be different, so the hydrophobic surface 105 is preferably formed on the inorganic layer 103 rather than the first On the alignment layer 901. For example, the inorganic layer 103 may include a material having surface hydroxyl groups to promote the formation of the hydrophobic surface 105. Therefore, the exposed portion of the inorganic layer 103 may be modified to be functionalized with a hydrophobic material, thereby forming a hydrophobic surface 105 in the gap 901g on the inorganic layer 103. In addition, as described above with respect to FIG. 3D, the sealant material 106m is formed on the first substrate 110, and the display dielectric material 107m is provided on the independent central portion 901a of the first alignment layer 901, wherein the hydrophobic surface 105, the sealant material 106m and The display medium material 107m may be similar to that depicted in FIG. 3D.

Referring to FIG. 10D, a second substrate 120 is provided, and as described above with respect to FIG. 3E, the first substrate 110 and the second substrate 120 are assembled by the sealant 206, wherein the second substrate 120 may be similar to that depicted in FIG. 3E. This causes the display panel 900 to have a hydrophobic surface 105 on the inorganic layer 103 provided on the first substrate 110. The sealant 206, the hydrophobic surface 105, and the first alignment layer 901 may be similar to those depicted in any of FIGS. 2, 7, and 8.

11 to 17 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 11 to 17, each of the display panels 1000 to 1600 is similar to the display panel 900 of FIG. 10D. Each of the display panels 1000 to 1600 includes a first substrate 110, a second substrate 120, and a hydrophobic surface 105. The display panel 1000 in FIG. 11 further includes a display medium layer 207, a sealant 906, a first alignment layer 1001 with a separate central portion 901a, a second alignment layer 102, and an inorganic layer 103. The display panel 1100 in FIG. 12 further includes a display medium layer 207, a sealant 106, a first alignment layer 1001 with an independent central portion 901a, a second alignment layer 102, and an inorganic layer 203. The display panel 1200 in FIG. 13 further includes a display medium layer 207, a sealant 1006, a first alignment layer 1001 with an independent central portion 901a, a second alignment layer 102, and an inorganic layer 303. The display panel 1300 in FIG. 14 further includes a display medium layer 207, a sealant 1006, a first alignment layer 1001 with an independent central portion 901a, a second alignment layer 102, and an inorganic layer 403. The display panel 1400 in FIG. 15 further includes a display medium layer 107, a sealant 1106, a first alignment layer 201, a second alignment layer 102, and an inorganic layer 503 having an independent central portion 101a and an outer portion 101b. The display panel 1500 in FIG. 16 further includes a display medium layer 107, a sealant 1206, a first alignment layer 201 having an independent central portion 101a and an outer portion 101b, a second alignment layer 102, and an inorganic layer 603. The display panel 1600 in FIG. 17 further includes a display medium layer 207, a sealant 206, a first alignment layer 801, a second alignment layer 102 having an independent central portion 902a and an outer portion 902b, and an inorganic layer 703. The first substrate 110, the second substrate 120, each display medium layer, each sealant, each first alignment layer, each second alignment layer, the hydrophobic surface 105, and each inorganic layer may be similar to those depicted in FIG. 10D. The respective embodiments depicted in FIGS. 11 to 17 will be described in order, and the same details as the aforementioned embodiments will be omitted.

Referring to FIG. 11, the display panel 1000 is different from the display panel 100 of FIG. 2 in that an inorganic layer 103 is provided therein. A part of the inorganic layer 103 is provided between the electrode layer 116 of the first substrate 110 and the independent central portion 901a of the first alignment layer 1001, and the other part of the inorganic layer 103 including the hydrophobic surface 105 is provided on the electrode layer 116 and the sealant 906 between. The inorganic layer 103 extends toward the edge of the first substrate 110 beyond the outer edge of the upper hydrophobic surface 105 thereof. In other words, the sealant 906 covers the top and side surfaces of a portion of the inorganic layer 103 between the hydrophobic surface 105 and the edge of the first substrate 110. The formation of the inorganic layer 103 including the hydrophobic surface 105 and its properties are as described above for the display panel 900 related to FIGS. 10A to 10C.

Referring to FIG. 12, the display panel 1100 is different from the display panel 1000 of FIG. 11 in that the edge of the inorganic layer 203 is aligned with the outer edge of the hydrophobic surface 105. The inorganic layer 203 is the same as the inorganic layer 103 in other respects.

Referring to FIG. 13, the display panel 1200 is different from the display panel 1000 of FIG. 11 in that the edge of the inorganic layer 303 is aligned with the outer edge of the sealant 1006. The inorganic layer 303 is the same as the inorganic layer 103 in other respects.

Referring to FIG. 14, the display panel 1300 is different from the display panel 1000 of FIG. 11 in that the edge of the inorganic layer 403 is aligned with the edge of the first substrate 110. The inorganic layer 403 is the same as the inorganic layer 103 in other respects.

Referring to FIG. 15, the display panel 1400 is different from the display panel 900 of FIG. 10D in that the thickness of the inorganic layer 503 is substantially the same as the thickness of the first alignment layer 201. The inorganic layer 503 is the same as the inorganic layer 103 in other respects. In this embodiment, the hydrophobic surface 105 is formed on at least a portion of the inorganic layer 503 to face the sealant 1106. Other aspects of the hydrophobic surface 105 are as described in the previous embodiment.

16, the display panel 1500 is different from the display panel 1400 of FIG. 15 in that the inorganic layer 603 is thicker than the first alignment layer 201. The inorganic layer 603 is the same as the inorganic layer 503 in other respects.

Referring to FIG. 17, the display panel 1600 is different from the display panel 800 of FIG. 9D in that the inorganic layer 703 is disposed on the protective layer 128 of the second substrate 120, and then the second alignment layer 902 is formed thereon. The inorganic layer 703 and the second alignment layer 902 including the hydrophobic surface 105 are otherwise the same as the inorganic layer 103 of FIG. 10D and the second alignment layer 402 of FIG. 9D, respectively.

18A to 18D are schematic cross-sectional views of a method for manufacturing a display panel 1700 according to an embodiment of the invention. The manufacturing method of the display panel 1700 of FIG. 18D may include the following steps, but the present invention is not limited thereto, and the order of the steps is not limited to the order of steps presented here. The manufacturing method depicted in FIGS. 18A to 18D will be described and the same details as the manufacturing method of the display panel 800 of FIGS. 9A to 9D already described will be omitted.

Referring to FIG. 18A, a second substrate 220 is provided, which includes a second support plate 124, an active layer 126, and a protective layer 228. The second substrate 220 is different from the second substrate 120 of FIG. 9A in that the protective layer 228 includes a first inorganic layer 228a and a second inorganic layer 228b. The second inorganic layer 228b is disposed on the active layer 126 and between the active layer 126 and the first inorganic layer 228a. In this specific embodiment, the material of the first inorganic layer 228a is different from the material of the second inorganic layer 228b. For example, the material of the first inorganic layer 228a includes silicon nitride, and the material of the second inorganic layer 228b includes silicon oxide. However, the present invention is not limited to this. The first inorganic layer 228a has a gap 228g, which exposes a portion of the second inorganic layer 228b.

Referring to FIG. 18B, the second alignment layer 402 is formed on the first inorganic layer 228a. The second alignment layer 402 is formed in a desired pattern, that is, has a gap 402g separating the independent central portion 402a from the outer portion 402b of the second alignment layer 402, and the gap 402g corresponds to the gap 228g below. That is, after the second alignment layer 402 is formed, the gap 228g is exposed by the gap 402g. However, the present invention is not limited to this. In some embodiments, before the gap 228g and the gap 402g are formed in one step, for example, the first inorganic layer 228a, the second inorganic layer 228b, and the second alignment layer 402 may be formed.

18C and 18D, at least a portion of the surface of the second inorganic layer 228b exposed by the gap 228g and the gap 402g forms a hydrophobic surface 105. In some embodiments, the hydrophobic surface 105 is formed by surface treating a portion of the surface of the second inorganic layer 228b exposed by the gap 228g and the gap 402g. In some other embodiments, before forming the second alignment layer 402, a hydrophobic surface 105 is formed in the gap 228g. For example, in the step of FIG. 18A, the second inorganic layer 228b is functionalized with a hydrophobic material, and the first inorganic layer 228a is formed on the functionalized second inorganic layer 228b. After that, a gap 228g is formed to expose a part of the functionalized surface of the second inorganic layer 228b as the hydrophobic surface 105.

The subsequent steps for manufacturing the display panel 1700 are the same as described for the display panel 800 related to FIGS. 9C to 9D, and the other parts of the display panel 1700 depicted in FIG. 18D and any intermediate versions thereof are the same as those shown in FIGS. 9C to 9D. The corresponding version of the painting is the same or similar. This method causes the display panel 1700 to have a hydrophobic surface 105 on the second inorganic layer 228b of the gap 228g.

19 and 20 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 19 and 20, the display panel 1800 and the display panel 1900 are similar to the display panel 800 of FIG. 9D. Each display panel 1800 and display panel 1900 includes a first substrate 110, a display medium layer 207, a first alignment layer 801, a second alignment layer 402 having an independent central portion 402a and an outer portion 402b, and a hydrophobic surface 105. The display panel 1800 in FIG. 19 further includes a second substrate 320 and a sealant 1406. The second substrate 320 includes a protective layer 328 and an active layer 126. The display panel 1900 in FIG. 20 further includes a second substrate 420 and a sealant 1506. The second substrate 420 includes a protective layer 428 having a protrusion 428p, and the hydrophobic surface 105 is a top surface of the protrusion 428p. The first substrate 110, each second substrate, the display medium layer 207, each sealant, the first alignment layer 801, the second alignment layer 402, and the hydrophobic surface 105 may be similar to the corresponding parts depicted in FIG. 9D. The respective embodiments depicted in FIG. 19 and FIG. 20 will be described in order, and the same details as the aforementioned embodiments will be omitted.

19, the display panel 1800 is different from the display panel 800 of FIG. 9D in that the protective layer 328 of the second substrate 320 has a gap 328g, and the gap 328g corresponds to the gap 402g of the second alignment layer 402 and extends through the protective layer 328 To the active layer 126. Further, at least a portion of the surface of the active layer 126 exposed by the gap 328g of the protective layer 328 is functionalized with a hydrophobic material and serves as the hydrophobic surface 105.

Referring to FIG. 20, the display panel 1900 is different from the display panel 800 of FIG. 9D in that the protective layer 428 of the second substrate 420 has a protrusion 428p, and the protrusion 428p corresponds to the gap 402g of the second alignment layer 402. In this particular embodiment, the protrusion 428p of the protective layer 428 may extend to a height aligned with the top surface of the second alignment layer 402. However, the present invention is not limited to this. In some embodiments, the height of the protrusion 428 p may be different from the thickness of the second alignment layer 402. In some embodiments, the protrusion 428p of the protective layer 428 may be formed as an additional patterned layer on top of the base layer, where the patterned layer and the base layer are the same material. In some embodiments, a passivation material layer is formed, and then the top of the passivation material layer is selectively removed by patterning (which may be etching) to form a protective layer 428 having protrusions 428p. Further, at least a part of the top surface of the protrusion 428 p of the protective layer 428 is functionalized with a hydrophobic material as the hydrophobic surface 105. The second alignment layer 402 is then formed on the protective layer 428 and does not cover the hydrophobic surface 105.

21A to 21D are schematic cross-sectional views of a method of manufacturing a display panel 2000 according to an embodiment of the invention. The manufacturing method of the display panel 2000 of FIG. 21D may include the following steps, but the present invention is not limited thereto, and the order of the steps is not limited to the order of steps presented here. The manufacturing method depicted in FIGS. 21A to 21D will be described and the same details as already described in the previous embodiments will be omitted, particularly the manufacturing method of the display panel 200 of FIGS. 3A to 3E.

21A to 21C, a first substrate 110 is provided, which includes a first support plate 114 and an electrode layer 116 disposed on the first support plate 114. The first substrate 110 may be similar to that depicted in FIG. 3E. Before the first alignment layer is formed on the first substrate 110, the hydrophobic surface 205 shown in FIG. 21B is formed on the top surface of the first substrate 110 facing away from the electrode layer 116 of the first support plate 114. Here, the hydrophobic surface 205 may be formed by performing surface treatment on the top surface of the electrode layer 116 so that the top surface of the electrode layer 116 is functionalized with the hydrophobic material as the hydrophobic surface 205. In this specific embodiment, the hydrophobic surface 205 is formed on the entire top surface of the electrode layer 116. However, the present invention is not limited to this. The hydrophobic surface 205 may be formed on only a portion of the top surface of the electrode layer 116 in other ways, similar to the formation of the hydrophobic surface 105 of the display panel 200 of FIG. 3C. After the hydrophobic surface 205 is formed, the first alignment layer 201 as shown in FIG. 21C is formed on the first substrate 110. The first alignment layer 201 has a gap 101g exposing a part of the hydrophobic surface 205, and the gap 101g separates the independent central portion 101a from the outer portion 101b of the first alignment layer 201. In other embodiments, the extension of the hydrophobic surface 205 under the first alignment layer 201 may include at least the surface of the electrode layer 116 exposed by the gap 101 g up to the entire surface of the electrode layer 116 facing the first alignment layer 201. For example, the hydrophobic surface 205 may extend in the gap 101g and under the independent central portion 101a of the first alignment layer 201, or may extend in the gap 101g and under the outer portion 101b of the first alignment layer 201. The formation of the first alignment layer 201 and its properties are as described for the display panel 200 related to FIG. 3B.

Referring to FIG. 21D, the subsequent steps for manufacturing the display panel 2000 are the same as those described for the display panel 200 related to FIGS. 3D to 3E. The other parts depicted in FIG. 21D and any intermediate versions thereof are the same as those in FIGS. 3D and 3E. The corresponding versions drawn are the same or similar. This method causes the display panel 2000 to have a hydrophobic surface 205 on the entire surface of the electrode layer 116 facing the display medium layer 107 and the sealant 106 and under the first alignment layer 201. However, the first alignment layer 201 exposes only a portion of the hydrophobic surface 205 surrounding the independent central portion 101a of the first alignment layer 201. In this embodiment, the sealant 106 may cover the hydrophobic surface 205 of the gap 101g, and the inner edge of the sealant 106 may be aligned with the edge of the independent central portion 101a. In some embodiments, the sealant 106 can selectively cover a part of the independent central portion 101a (similar to the sealant 206 shown in FIG. 3E), and selectively cover only a part of the gap 101g (similar to the sealant of FIG. 7) 606) or aligned with the boundary between the gap 101g and the outer portion 110b (similar to the sealant 706 shown in FIG. 8).

In summary, at least the hydrophobic surface adjacent to the independent central portion of at least one of the first alignment layer and the second alignment layer limits the range of the display medium material during the manufacture of the display panel to prevent or reduce the display medium material and The contact between the uncured sealant, thus preventing or reducing the contamination of the display medium material by the uncured sealant. The edge of the independent central portion of at least one of the first alignment layer and the second alignment layer may also help limit the range of the display medium layer to prevent or reduce contact between the display medium layer and the uncured sealant.

Therefore, the hydrophobic surface and the edge of the independent center portion of at least one of the first alignment layer and the second alignment layer prevent or reduce the deterioration of the performance of the display panel, which may be caused by the contact of the display medium layer with the uncured sealant Of the display medium layer is contaminated.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000 101, 201, 301, 801, 901, 1001 ‧‧‧ first alignment layer 101a, 402a, 901a, 902a 101aT, 102T‧‧‧surface 101b, 301b, 402b, 901b, 902b 101g, 228g, 328g, 402g, 901g 101m‧‧‧First alignment material layer 102, 202, 302, 402, 902‧‧‧Second alignment layer 103, 203, 303, 403, 503, 603, 703 ‧‧‧ inorganic layer 105, 205‧‧‧ hydrophobic surface 106, 206, 306, 406, 506, 606, 706, 906, 1006, 1106, 1206, 1406, 1506 106m‧‧‧frame material 107, 207, 307‧‧‧ display medium layer 107m‧‧‧Display medium material 110‧‧‧The first substrate 114‧‧‧First support plate 116‧‧‧electrode layer 120, 220, 320, 420‧‧‧second substrate 124‧‧‧Second support plate 126‧‧‧Active layer 128, 228, 328, 428 228a‧‧‧The first inorganic layer 228b‧‧‧Second inorganic layer 428p‧‧‧Protrusion AL1‧‧‧First alignment layer AL2‧‧‧Second alignment layer DP‧‧‧Display panel HS‧‧‧hydrophobic surface ICP‧‧‧Independent Center SB1‧‧‧First substrate SB2‧‧‧Second substrate SL‧‧‧Frame glue W‧‧‧Width

FIG. 1 is a schematic top view of a display panel according to an embodiment of the invention. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the invention. 3A to 3E are schematic cross-sectional views of a method of manufacturing a display panel according to an embodiment of the invention. 4 to 8 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 9A to 9D are schematic cross-sectional views of a method for manufacturing a display panel according to an embodiment of the invention. 10A to 10D are schematic cross-sectional views of a method of manufacturing a display panel according to an embodiment of the invention. 11 to 17 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 18A to 18D are schematic cross-sectional views of a method of manufacturing a display panel according to an embodiment of the invention. 19 and 20 are schematic cross-sectional views of a display panel according to an embodiment of the invention. 21A to 21D are schematic cross-sectional views of a method of manufacturing a display panel according to an embodiment of the invention.

AL1‧‧‧First alignment layer

AL2‧‧‧Second alignment layer

DP‧‧‧Display panel

HS‧‧‧hydrophobic surface

ICP‧‧‧Independent Center

SB1‧‧‧First substrate

SB2‧‧‧Second substrate

SL‧‧‧Frame glue

W‧‧‧Width

Claims (23)

A display panel, including: First substrate A second substrate assembled with the first substrate; The display medium layer is provided between the first substrate and the second substrate; The sealant is disposed between the first substrate and the second substrate and surrounds the display medium layer; A first alignment layer is provided on the first substrate and between the first substrate and the display medium layer; A second alignment layer disposed on the second substrate and between the second substrate and the display medium layer, wherein one of the first alignment layer and the second alignment layer has an independent central portion; as well as A hydrophobic surface extending from an edge of the independent central portion toward an edge of one of the first substrate and the second substrate, wherein the sealant is at least on the hydrophobic surface and the first substrate and the The edges of the one of the second substrates extend between the edges, and the hydrophobic surface includes a hydrophobic material that is more hydrophobic than the independent central portion. The display panel according to item 1 of the patent application scope, wherein the sealant covers the hydrophobic surface. The display panel as described in item 2 of the patent application scope, wherein the sealant partially covers the independent central portion. The display panel according to item 1 of the patent application range, wherein the one of the first alignment layer and the second alignment layer further includes an outer portion, and a gap separates the outer portion from the independent center portion , And the hydrophobic surface extends in the gap. The display panel according to item 1 of the patent application scope, wherein the independent central portion and the sealant are separated by a gap, and the hydrophobic surface extends in the gap. The display panel according to item 1 of the patent application scope, wherein the edge of the sealant is aligned with the boundary between the independent central portion and the hydrophobic surface. The display panel as described in item 1 of the patent application scope further includes a bottom layer hydrophobic surface disposed under the independent central portion, wherein the bottom layer hydrophobic surface includes the same material as the hydrophobic surface. The display panel according to item 7 of the patent application scope further includes an outer hydrophobic surface extending between the hydrophobic surface and the edge of the one of the first substrate and the second substrate, wherein The outer hydrophobic surface includes the same material as the hydrophobic surface. The display panel according to item 8 of the patent application range, wherein the hydrophobic surface, the bottom layer hydrophobic surface, and the outer hydrophobic surface continuously extend at the same level. The display panel according to item 1 of the patent application scope further includes an inorganic layer provided on the one of the first substrate and the second substrate, wherein a part of the inorganic layer has The top surface of the surface. The display panel according to item 10 of the patent application scope, wherein another part of the inorganic layer overlaps the independent center part. The display panel according to item 11 of the patent application range, wherein the portion of the inorganic layer and the other portion of the inorganic layer are continuously located in the first substrate and the second substrate The one extends between the first alignment layer and the second alignment layer. The display panel according to item 12 of the patent application range, wherein the thickness of the inorganic layer is different from the thickness of the one of the first alignment layer and the second alignment layer. The display panel according to item 12 of the patent application range, wherein the thickness of the inorganic layer is substantially the same as the thickness of the one of the first alignment layer and the second alignment layer. The display panel according to item 1 of the patent application scope further includes a first inorganic layer and a second inorganic layer, which are provided on the one of the first substrate and the second substrate, wherein the first An inorganic layer is provided between the second inorganic layer and the one of the first alignment layer and the second alignment layer, the first inorganic layer has a gap exposing a part of the second inorganic layer , And the top surface of the portion of the second inorganic layer serves as the hydrophobic surface. The display panel as described in item 15 of the patent application range, wherein materials of the first inorganic layer and the second inorganic layer are different. The display panel according to item 1 of the patent application scope, wherein the hydrophobic material includes silane, fluorinated silane, long-chain alcohol or acid. A manufacturing method of a display panel, including: Provide a first substrate and a second substrate; Forming an alignment material layer on one of the first substrate and the second substrate and patterning the alignment material layer to form an independent central portion; Forming a hydrophobic surface extending from the edge of the independent central portion toward the edge of the one of the first substrate and the second substrate; Forming a sealant material on the one of the first substrate and the second substrate, wherein a gap separates the sealant material from the independent central portion, and the hydrophobic surface extends in the gap ; Dropping a display medium material on the independent central portion, wherein the display medium material is restricted by the hydrophobic surface and is not in contact with the sealant material; Assembling the first substrate and the second substrate with the sealant material; and The sealant material is cured to form the sealant. The method for manufacturing a display panel according to claim 18 of the patent application, wherein the hydrophobic surface is formed by performing hydrophobic modification on a part of the one of the first substrate and the second substrate, and The gap exposes the portion of the one of the first substrate and the second substrate. The method for manufacturing a display panel as described in item 18 of the patent application scope further includes forming an inorganic layer on the one of the first substrate and the second substrate, wherein the independent central portion and the The gap between the sealant materials exposes the inorganic layer. The method of manufacturing a display panel as described in item 20 of the patent application range, wherein the hydrophobic surface is formed by hydrophobically modifying the inorganic layer. The method of manufacturing a display panel as described in claim 18, wherein the alignment material layer is completely coated on the one of the first substrate and the second substrate and patterned to form An alignment layer, and the alignment layer includes the independent central portion and an outer portion, wherein the gap separates the outer portion from the independent central portion. The method for manufacturing a display panel according to claim 22, wherein the hydrophobic surface is formed by performing hydrophobic modification on a part of the one of the first substrate and the second substrate, and The gap exposes the portion.

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