TW202102903A - Display device and spacer unit - Google Patents

Abstract

The invention discloses a display device and a spacer unit thereof. The spacer unit comprises a main body structure, a first groove and a plurality of second grooves. The body structure has a first surface, and at least one first groove is located on the first surface of the body structure, and the first groove is disposed along a first direction. The plurality of second grooves are disposed on the first surface of the main structure, the second grooves are disposed along a second direction, the first direction and the second direction are at a first angle, and the first angle is greater than 0° and less than or equal to 90°. The display device of the present invention can increase the path of water vapor intrusion by providing a spacer unit of a specific structure, and the function is to prevent water vapor from invading the display panel.

Description

Display device and spacer unit thereof

The present invention relates to a display device, in particular to a narrow-frame display device and a spacer unit used in the display device.

Liquid crystal display devices have been widely used in various fields, such as homes, public places, office places, and personal electronic related products. A liquid crystal display device generally includes a pair of substrates and a liquid crystal layer disposed between the pair of substrates. The surroundings of the liquid crystal layer are sealed by a sealant layer to form an approximately rectangular frame shape, and a display area contributing to display is formed inside the sealant layer.

In the prior art, a cylindrical spacer is provided in the sealing body layer area for the purpose of supporting the strength of the panel. The cylindrical spacer is covered with an orientation layer, and then the two substrates are sealed by the sealing body layer. However, when the existing cylindrical spacers are used in display devices, especially narrow-frame display devices, there is a problem of poor bonding strength between the sealing body layer and the alignment layer, which in turn causes poor bonding strength between the two substrates, causing water vapor to invade the panel and affect the product Yield.

Furthermore, when cutting into a single display panel, the panel is not evenly stressed, which causes the panel to lift up, break, and scratch the circuit with glass fragments.

The main purpose of the present invention is to provide a display device and a spacer unit thereof to overcome the problem of water vapor intrusion or uneven force during panel cutting in the prior art display device.

In order to achieve the above objective, the present invention provides a spacer unit. The spacer unit includes: a main structure having a first surface; at least one first groove located on the first surface of the main structure, The first groove is arranged along a first direction; and a plurality of second grooves are located on the first surface of the main structure, and the second groove is arranged along a second direction. The two directions form a first included angle, and the first included angle is greater than 0° and less than or equal to 90°.

In the spacer unit of the present invention, each of the second grooves has a first end, and a plurality of the first ends are respectively connected with the first grooves.

In the spacer unit of the present invention, a plurality of the second grooves connected to the same first groove are arranged on the same side of the first groove.

The spacer unit of the present invention, wherein the first surface includes a first side area, a central area and a second side area, and the central area is located between the first side area and the second side area , Wherein the spacer unit includes: two first grooves, respectively located in the first side area and the second side area; a plurality of the second grooves, respectively located in the first side area and the second side area Side regions, and a plurality of the second grooves connected to the same first groove are arranged in parallel; Wherein, the first groove and the second groove of the first side area are respectively arranged symmetrically with the first groove and the second groove of the second side area.

The spacer unit of the present invention, wherein the spacer unit further includes: a plurality of third grooves, the third grooves are block-shaped, located in the central area and arranged along the first direction to at least a row.

In the spacer unit of the present invention, the third grooves are arranged in at least two rows, and the third grooves in two adjacent rows are arranged in a chevron pattern.

The spacer unit of the present invention, wherein the spacer unit further comprises: at least one third groove located in the central area of the first surface of the main structure, and the third groove is along the first surface. A plurality of fourth grooves are located in the central area of the first surface of the main structure, the fourth grooves are arranged along a third direction, and the first direction and the third direction form a second angle , The second included angle is greater than 0° and less than or equal to 90°.

The spacer unit of the present invention, wherein the first included angle and the second included angle are the same or different.

The spacer unit of the present invention, wherein the spacer unit includes two third grooves, a part of the fourth groove includes a second end and a third end, and the second end is connected to In one third groove, the third end is connected to the other third groove.

The spacer unit of the present invention, wherein the spacer unit includes four third grooves, and the fourth groove includes a second end and a third An end, part of the second end and the third end of the fourth groove are respectively connected to two of the third grooves, and the second end and the third end of the remaining fourth groove Do not connect with the other two third grooves.

The spacer unit of the present invention, wherein a plurality of the second grooves connected to the same first groove are arranged at equal intervals, a plurality of the fourth grooves connected to the same third groove, etc. Distance interval setting.

In the spacer unit of the present invention, a plurality of protrusions are formed oppositely between the adjacent first groove, the second groove, the third groove, and the fourth groove, and the protrusions include A top surface and a bottom surface, the area of the top surface is smaller than the area of the bottom surface, and the distance between any two points on the top surface is less than 10 μm.

In the spacer unit of the present invention, the protrusion further includes a side surface, the side surface and the bottom surface form a third included angle, and the third included angle is greater than or equal to 60° and less than 90°.

The spacer unit of the present invention, wherein the first groove, the second groove, the third groove, and the fourth groove have a depth along a direction perpendicular to the first surface, and the first groove The depths of a groove, the second groove, the third groove, and the fourth groove are the same or different; the first groove, the second groove, the third groove, and the fourth groove The groove has a width along a direction parallel to the first surface, and the widths of the first groove, the second groove, the third groove and the fourth groove are the same or different.

The spacer unit of the present invention, wherein the main structure has a thickness along a direction perpendicular to the first surface, the first groove, the second groove, the third groove, and the fourth groove The depth of the groove is less than or equal to the thickness.

In order to achieve the above objective, the present invention also provides a display device, the display device comprising: a first substrate; a second substrate disposed opposite to the first substrate, and the first substrate and the second substrate jointly define Adjacent a display area and a frame area; a sealing body layer located between the first substrate and the second substrate, surrounding the display area, and disposed at the junction of the display area and the frame area; a display molecule Layer, sandwiched between the first substrate and the second substrate, located in the display area, and the sealing body layer surrounds the display molecular layer; and a spacer unit disposed at the boundary of the display area and the frame area And/or the frame area, and the spacer unit includes: a main structure having a first surface; at least one first groove disposed on the first surface of the main structure, the first groove Are arranged along a first direction; a plurality of second grooves are arranged on the first surface of the main structure, the second grooves are arranged along a second direction, and the first direction and the second direction form a first An included angle, the first included angle is greater than 0° and less than or equal to 90°.

The display device of the present invention, wherein the first surface includes a first side area, a central area and a second side area, the central area is located between the first side area and the second side area, the The first groove and the second groove are both located in the first side area and the second side area, and the spacer unit further includes: at least one third groove located on the first surface of the main structure In the central area, the third groove is arranged along the first direction; A plurality of fourth grooves are located in the central area of the first surface of the main structure, the fourth grooves are arranged along a third direction, the first direction and the third direction form a second angle, the first The two included angles are greater than 0° and less than or equal to 90°.

In the display device of the present invention, the first direction is a direction along the outer edge of the display area of the first substrate. The display device of the present invention, wherein the display device further includes: a first alignment layer, the first alignment layer extends from the display area to the frame area, and is located on the spacer unit, the spacer The unit is located on the first substrate; a second alignment layer, the second alignment layer extends from the display area to the frame area, and is located on the second substrate.

The display device of the present invention, wherein the display device further includes a cutting support area, the cutting support area is arranged in the frame area, and the spacer unit is arranged between the display area and the cutting support area and/ Or set in the cutting support area.

The display device of the present invention, wherein the depth and/or width of the first groove, the second groove, the third groove, and the fourth groove of the cutting support area are greater than that of the display area and the The depth and/or width of the first groove, the second groove, the third groove and the fourth groove are corresponding to the cutting support areas.

The beneficial effects of the present invention: the display device of the present invention can not only increase the path of water vapor intrusion and prevent water vapor from entering the display panel by arranging the spacer unit with a specific structure; it can also reduce the orientation by virtue of the leveling effect of the orientation layer. Layer and sealing body layer The contact area of the sealing body layer and the spacer unit is correspondingly increased, thereby enhancing the bonding strength of the two substrates, and further preventing water vapor from invading the panel; in addition, it can support the panel in the cutting support area to avoid the panel Uneven force during cutting can cause the panel to lift up, break, and scratch the circuit with glass fragments.

1‧‧‧Display device

101‧‧‧Display area

102‧‧‧Border Area

103‧‧‧Cutting support area

11‧‧‧First substrate

12‧‧‧Second substrate

13‧‧‧Spacer unit

13A‧‧‧Septum unit I

13B‧‧‧Spacer unit Ⅱ

131‧‧‧Main structure

1311‧‧‧First surface

132‧‧‧First groove

1321‧‧‧First groove I

1322‧‧‧The first groove Ⅱ

133‧‧‧Second Groove

133A‧‧‧First end

134‧‧‧The third groove

1341‧‧‧Third Groove I

1342‧‧‧The third groove Ⅱ

1343‧‧‧The third groove Ⅲ

1344‧‧‧The third groove Ⅳ

135‧‧‧Protrusion

136‧‧‧The fourth groove

136‧‧‧B second end

136C‧‧‧Third end

1361‧‧‧Fourth Groove I

1361B‧‧‧Second end

1361C‧‧‧Third end

1362‧‧‧The fourth groove Ⅱ

1362B‧‧‧‧‧‧Second end

14‧‧‧Sealing body layer

15‧‧‧First orientation layer

16‧‧‧Second orientation layer

θ 1‧‧‧The first included angle

θ 2‧‧‧Second included angle

θ 3‧‧‧The third included angle

A1‧‧‧First side area

A2‧‧‧Central District

A3‧‧‧Second side area

L1‧‧‧Depth

L1 _A ‧‧‧Depth

L1 _B ‧‧‧Depth

L2‧‧‧Thickness

W1‧‧‧Width

W1 _A ‧‧‧Width

W1 _B ‧‧‧Width

S1‧‧‧Top surface

S2‧‧‧Bottom

H1‧‧‧Side

D1‧‧‧First direction

D2‧‧‧Second direction

D3‧‧‧Third party direction

1 is a schematic partial cross-sectional view of a display device according to the first embodiment of the present invention; FIG. 2 is a partial top view of a spacer unit according to the first embodiment of the present invention; FIG. 3 is a partial top view of a spacer unit according to the second embodiment of the present invention Fig. 4 is a partial plan view of the spacer unit according to the third embodiment of the present invention; Fig. 5 is a partial plan view of the spacer unit according to the fourth embodiment of the present invention; Fig. 6 is a fifth embodiment of the present invention A schematic partial top view of a spacer unit according to the method; FIG. 7 is a schematic partial cross-sectional view of a display device according to a sixth embodiment of the present invention.

The embodiments of the present invention are described in detail below: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation manners and processes are given, but the protection scope of the present invention is not limited to the following embodiments. The described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention.

Among them, for the convenience and clarity of the description, the same components in different embodiments use the same reference numerals.

1 is a schematic partial cross-sectional view of the display device according to the first embodiment of the present invention. As shown in FIG. 1, the display device 1 includes a first substrate 11, a second substrate 12, a spacer unit 13, a sealing body layer 14 and a display molecular layer (Picture not shown). In this embodiment, the display device 1 further includes a first alignment layer 15 and a second alignment layer 16.

The first substrate 11 and the second substrate 12 are disposed opposite to each other, and the first substrate 11 and the second substrate 12 jointly define an adjacent display area 101 and a frame area 102. Among them, the first substrate 11 and the second substrate 12 may be made of light-transmissive materials, such as glass, quartz, plastic, rubber, glass fiber or other polymer materials; or, the first substrate 11 and the second substrate 12 may also be made of The opaque material, such as a metal-glass fiber composite board, a metal-ceramic composite board, or a printed circuit board, etc., is not particularly limited in the present invention. In this embodiment, both the first substrate 11 and the second substrate 12 are transparent glass substrates, and the first substrate 11 is, for example, a color filter substrate, and the second substrate 12 is, for example, an array substrate.

The spacer unit 13 is disposed on the first substrate 11 and located at the junction of the display area 101 and the frame area 102. The first alignment layer 15 extends from the display area 101 to the frame area 102, and covers the spacer unit 13, and the second The orientation layer 16 extends from the display area 101 to the frame area 102 and is located on the second substrate 12. The sealing body layer 14 is located between the first substrate 11 and the second substrate 12, specifically between the first alignment layer 15 and the second alignment layer 16, and is disposed at the junction of the display area 101 and the frame area 102, and surrounds the display area 101. . The display molecular layer (not shown) is sandwiched between the first substrate 11 and the second substrate 12 in the display area 101, and the sealing body layer 14 surrounds the display molecular layer, that is, the sealing body layer 14 and the first substrate 11 and the second substrate 12 can form a closed accommodating space showing the molecular layer.

Of course, a light-shielding layer, a flat layer, etc. can also be provided between the first substrate 11 and the spacer unit 13, and a first metal layer, an insulating layer, and a second metal layer can also be provided between the second substrate 12 and the second alignment layer 16. Layers, protective layers, etc., are not particularly limited in the present invention.

Please refer to FIG. 2 at the same time. FIG. 2 is a partial top view of the spacer unit according to the first embodiment of the present invention. The spacer unit 13 includes a main structure 131, at least one first groove 132 and a plurality of second grooves 133. Among them, the material of the spacer unit 13 can be a photosensitive photoresist material such as resin, silicate, or glass fiber, and the present invention is not particularly limited.

The shape of the main structure 131 is determined according to the shape of the display area 101. For example, it is a box ring formed around the display area 101. It can also be formed by connecting four rectangles end to end to form a ring around the display area 101. The present invention does not apply. Specially limited.

90°。 1 and 2 at the same time, the main structure 131 has a first surface 1311, the first groove 132 and the second groove 133 are disposed on the first surface 1311 of the main structure 131, the first groove 132 is along the first direction D1 is set, the second groove 133 is set along the second direction D2, the first direction and the second direction are both parallel to the first surface 1311, and the first direction and the second direction form a first angle θ 1, 0°<θ 1

90°.

In this embodiment, the second groove 133 has a first end 133A, and the first ends 133A of the plurality of second grooves 133 are respectively connected to the first groove 132 and connected to the same first groove 132 A plurality of second grooves 133 of the second groove 133 are arranged on the same side of the first groove 132.

In detail, as shown in FIG. 2, the first surface 1311 in this embodiment includes a first side area A1, a central area A2, and a second side area A3. The central area A2 is located in the first side area A1 and the second side area A3. between. The first surface 1311 of the spacer unit 13 is provided with a first groove I 1321, a first groove II 1322 and a plurality of second grooves 133. The first groove I 1321 is located in the first side area A1, the first groove II 1322 is located in the second side area A3, the first groove I 1321 and the first groove II 1322 are arranged along the first direction D1, for example For the outer edge direction of the display area 101, the first groove I 1321 and the first groove II 1322 are, for example, annular grooves formed around the outer edge of the display area, and the first groove I 1321 and the first groove II 1322 are parallel to each other.

The plurality of second grooves 133 are respectively located in the first side area A1 and the second side area A3, and are respectively connected to the first groove I 1321 and the first groove II 1322 with their first ends 133A. Preferably, the plurality of second grooves 133 connected to the first groove I 1321 are arranged on the same side of the first groove I 1321, for example, the side away from the central area A2, and are connected to the first groove I The plurality of second grooves 133 of 1321 are arranged in parallel and equidistant; the plurality of second grooves 133 connected to the first groove II 1322 are arranged on the same side of the first groove II 1322, for example, away from the center The multiple second grooves 133 connected to the first groove II 1322 on one side of the area A2 are arranged in parallel and equidistant. More preferably, the first groove I 1321 and the second groove 133 in the first side area A1 are symmetrically arranged with the first groove II 1322 and the second groove 133 in the second side area A3, that is, the first The arrangement of the side area A1 and the arrangement of the second side area A3 are symmetrical with respect to the central axis of the central area A2. The arrangement of the spacer unit 13 in this way can increase the path of water vapor intrusion, and can also increase the contact area between the sealing body layer 14 and the first substrate 11, thereby enhancing the bonding strength of the two substrates, preventing water vapor intrusion, and improving the yield of the display device.

In this embodiment, the spacer unit 13 may further include a plurality of third grooves 134. The third grooves 134 are in a block shape, such as a long strip block shape or a square block shape, located in the central area A2 and along the The first direction D1 is arranged in one row, two rows, three rows... In this embodiment, the arrangement in three rows is taken as an example. The third grooves 134 in the same row are arranged in parallel, and the third grooves 134 in two adjacent rows are arranged in a chevron pattern. This arrangement can maximize the contact area between the sealing body layer 14 and the first substrate 11, and can also concentrate the water vapor penetrating into the central area A2 to prevent the water vapor from continuing to permeate toward the display area 102, and further play a role in blocking water vapor.

L1。第一凹槽I 1321、第一凹槽Ⅱ 1322、第二凹槽133和第三凹 槽134沿平行於第一表面1311的方向具有一寬度W1，詳細而言，該寬度方向為在第一表面1311上垂直於各凹槽較長邊的方向，更進一步地該寬度W1例如為各槽在第一表面1311上具有的寬度，各槽的寬度W1可以相同，也可以不同。 The first groove I 1321, the first groove II 1322, the second groove 133, and the third groove 134 have a depth L1 along a direction perpendicular to the first surface 1311. In this embodiment, the first groove I 1321, the first groove II 1322, the second groove 133 and the third groove 134 have the same depth L1. In another embodiment, the depth L1 of each groove may be different; the main structure 131 is perpendicular to the first The direction of the surface 1311 has a thickness L2, L2

L1. The first groove I 1321, the first groove II 1322, the second groove 133, and the third groove 134 have a width W1 along a direction parallel to the first surface 1311. In detail, the width direction is in the first The surface 1311 is perpendicular to the longer sides of the grooves. Further, the width W1 is, for example, the width of the grooves on the first surface 1311. The width W1 of the grooves may be the same or different.

θ 3<90°，優選地，頂面S1的任意兩點之間的距離小於10μm。如此設置，在第一取向層15塗覆於隔墊物單元13上後，由於頂面S1的面積小於底面S2的面積，以及第一取向層15的流平特性，頂面S1上將存留較少的第一取向層15材料，甚至不會存留第一取向層15材料，從而使得密封體層14直接與頂面S1接觸，克服了密封體層14與第一取向層15因接著強度較差造成的第一基板11與第二基板12接著強度差，從而容易引起水汽入侵的問題。 A plurality of protrusions 135 are formed oppositely between the first groove I 1321, the first groove II 1322, the second groove 133, and the third groove 134. The protrusions 135 include a top surface S1, and a bottom surface opposite to the top surface. S2 and the side surface H1, the top surface S1 is located on the first surface 1311, the area of the top surface S1 is smaller than the area of the bottom surface S2, and the side surface H1 and the bottom surface S2 form a third angle θ 3, 60°

θ 3<90°, preferably, the distance between any two points on the top surface S1 is less than 10 μm. With this arrangement, after the first alignment layer 15 is coated on the spacer unit 13, since the area of the top surface S1 is smaller than the area of the bottom surface S2, and the leveling characteristics of the first alignment layer 15, there will be a relatively small amount on the top surface S1. Less material of the first alignment layer 15 will not even leave the material of the first alignment layer 15, so that the sealant layer 14 is in direct contact with the top surface S1, which overcomes the first alignment layer 14 and the first alignment layer 15 caused by poor bonding strength. The bonding strength between the first substrate 11 and the second substrate 12 is poor, which easily causes the problem of water vapor intrusion.

Please refer to FIG. 3, which is a partial top view of the spacer unit according to the second embodiment of the present invention. The second embodiment is similar to the first embodiment. The spacer unit 13 is provided with a first groove I 1321, a first groove II 1322, a plurality of second grooves 133, and a plurality of third grooves 134. The same is not repeated here. The difference is that in this embodiment, the third groove 134 is in the shape of a rectangular block, and a plurality of third grooves 134 are arranged in a row at intervals along the first direction. In this embodiment, mutual Three parallel rows of third grooves 134, preferably phase The third grooves 134 in two adjacent rows are arranged in a staggered manner, which can further enhance the effect of preventing water vapor intrusion.

Please refer to FIG. 4, which is a partial top view of the spacer unit according to the third embodiment of the present invention. In this embodiment, the spacer unit 13 includes a first groove I 1321, a first groove II 1322, and a plurality of second grooves 133. The first groove I 1321, the first groove II 1322, and the second groove 133 The arrangement of the groove 133 is the same as that of the first embodiment, and will not be repeated here.

90°，第一夾角θ 1和第二夾角θ 2可以相同，也可以不同。在本實施方式中，第一夾角θ 1為90°，第二夾角θ 2小於90°，例如為45°。 In addition, the spacer unit 13 further includes a third groove I 1341, a third groove II 1342 and a plurality of fourth grooves 136, the third groove I 1341, the third groove II 1342 and a plurality of fourth grooves 136. The slots 136 are all located in the central area A2. The third groove I 1341 and the third groove II 1342 are arranged along the first direction D1, and the first direction D1 is, for example, the outer edge direction of the display area. The fourth groove 136 is arranged along the third direction D3, and the first direction and the third direction form a second included angle θ 2, 0°<θ 2

At 90°, the first included angle θ 1 and the second included angle θ 2 may be the same or different. In this embodiment, the first included angle θ 1 is 90°, and the second included angle θ 2 is less than 90°, for example, 45°.

In this embodiment, each fourth groove 136 has a second end 136B, a plurality of fourth grooves 136 are connected to the third groove I 1341 by their second ends 136B, and the remaining fourth grooves 136 are connected by their second ends 136B. The second end 136B is connected with the third groove II 1342. Preferably, a plurality of fourth grooves 136 connected to the third groove I 1341 are arranged on the same side of the third groove I 1341, for example, a side close to the first side area A1, and connected to the third groove. The multiple fourth grooves 136 of the groove I 1341 are arranged in parallel and equidistant; the multiple fourth grooves 136 connected to the third groove II 1342 are arranged on the same side of the third groove II 1342, for example, near the second side The multiple fourth grooves 136 connected to the third groove II 1342 on one side of the area A3 are arranged in parallel and equidistantly. For example, the third groove I 1341 and the fourth groove 136 connected to the third groove I 1341 are arranged symmetrically with the third groove II 1342 and the fourth groove 136 connected to the third groove II 1342 .

Please refer to FIG. 5, which is a partial top view of a spacer unit according to a fourth embodiment of the present invention. In this embodiment, the spacer unit 13 includes a first groove I 1321, a first groove II 1322, and a plurality of second grooves 133. Wherein, part of the second groove 133 is connected to the first groove I 1321 and is arranged on the same side of the first groove I 1321, for example, the side close to the central area A2; the remaining second groove 133 and the first groove The II 1322 is connected to and arranged on the same side of the first groove II 1322, for example, the side close to the central area A2. The remaining arrangements of the first groove I 1321, the first groove II 1322 and the second groove 133 are the same as those of the first embodiment, and will not be repeated here.

In addition, the spacer unit 13 further includes a third groove I 1341, a third groove II 1342, a plurality of fourth grooves I 1361, and a plurality of fourth grooves II 1362. The third groove I 1341, the third groove II 1342, the plurality of fourth grooves I 1361, and the plurality of fourth grooves II 1362 are all located in the central area A2, and the third groove I 1341 and the third groove II 1342 It is arranged along the first direction D1, and the first direction is, for example, the outer edge direction of the display area. The fourth groove I 1361 and the fourth groove II 1362 are arranged along the third direction D3, and the first direction D1 and the third direction D3 form a second angle θ2, and θ2 is, for example, 90°.

In this embodiment, each fourth groove I 1361 includes a second end 1361B and a third end 1361C, and all the fourth grooves I 1361 are connected to the third groove I 1341 by their second ends 1361B, respectively. Its third end 1361C is connected to the third groove II 1342. Each fourth groove II 1362 includes a second end 1362B, and all the fourth grooves II 1362 are connected to the third groove I 1341 or the third groove II 1342 by their second ends 1362B, and a plurality of fourth grooves II 1362 The grooves II 1362 are respectively located on the side of the third groove I 1341 close to the first side area A1 or the third groove II 1342 on the side close to the second side area A2.

Please refer to FIG. 6, which is a partial top view of a spacer unit according to a fifth embodiment of the present invention. In this embodiment, the spacer unit 13 includes a first groove I 1321, a first groove II 1322, and a plurality of second grooves 133. Wherein, a plurality of second grooves 133 are arranged on the same side of the first groove I 1321, for example, a side close to the central area A2; the remaining second grooves 133 are arranged on the same side of the first groove II 1322, for example It is the side close to the central area A2. The other arrangements of the first groove I 1321, the first groove II 1322 and the second groove 133 are the same as those of the first embodiment, and will not be repeated here.

In addition, the spacer unit 13 further includes a third groove I 1341, a third groove II 1342, a third groove III 1343, a third groove IV 1344, and a plurality of fourth grooves 136. The third groove I 1341, the third groove II 1342, the third groove III 1343, the third groove IV 1344, and the plurality of fourth grooves 136 are all located in the central area A2. The third groove I 1341, the third groove I 1341, and the third grooves 136 are located in the central area A2. The groove II 1342, the third groove III 1343, and the third groove IV 1344 are arranged along a first direction D1, and the first direction D1 is, for example, the outer edge direction of the display area. The fourth groove 136 is arranged along the third direction D3. The first direction D1 and the third direction D3 form a second included angle θ2, and θ2 is, for example, 90°.

In this embodiment, each fourth groove 136 includes a second end 136B and a third end 136C, and the plurality of fourth grooves 136 have their second ends 136B is connected to the third groove I 1341, and its third end 136C is connected to the third groove II 1342; the remaining fourth groove 136 is connected to the third groove III 1343 by its second end 136B, and its third end The part 136C is connected to the third groove IV 1344.

Please refer to FIG. 7, which is a schematic partial cross-sectional view of a display device according to a sixth embodiment of the present invention. In this embodiment, the display device 1 includes a first substrate 11, a second substrate 12, a spacer unit 13, a sealing body layer 14, a display molecular layer (not shown), a first alignment layer 15 and a second alignment layer 16. It is the same as the first embodiment and will not be repeated here. The difference is that the display device 1 further includes a cutting support area 103, and the cutting support area 103 is located in the frame area 102. The spacer unit 13 is disposed on the first substrate 11 at the junction of the display area 101 and the frame area 102 and the cutting support area 103. That is to say, in this embodiment, the spacer unit 13 includes a spacer unit I 13A and a spacer unit II 13B. The spacer unit I 13A is located at the junction of the display area 101 and the frame area 102, and the sealing body layer 14 is provided. It seals the first substrate 11 and the second substrate 12; the spacer unit II 13B is located in the cutting support area 103 to support the panel during cutting.

The specific structures of the spacer unit I 13A and the spacer unit II 13B can independently be any of the above-mentioned spacer unit structures in the first to fifth embodiments. _{In this embodiment, the depth L1 B} or width W1 _B of the groove in the spacer unit II 13B is _{greater than the depth L1 A} or width W1 _A of the groove in the spacer unit I 13A. In another embodiment, the depth L1 _{B of the groove in the spacer unit II 13B is the same as the depth L1 A} of the groove in the spacer unit I 13A, and _{the width W1 B} of the groove in the spacer unit II 13B is the same as _{The widths W1 and B} of the grooves in the spacer unit 13A are the same. With this arrangement, the spacer unit can not only increase the path of water vapor intrusion, but also increase the contact area between the sealing body layer and the first substrate, thereby enhancing the bonding strength of the two substrates, preventing water vapor intrusion, and improving the yield of the display device; it can also support cutting support. The area supports the panel to avoid uneven force when the panel is cut, which may cause the panel to lift up, break, and scratch the circuit with glass fragments.

In addition, the spacer unit structure indicated in the foregoing embodiment of the present invention can be fabricated by using halftone mask technology, but the present invention is not limited to this.

To sum up, the display device of the present invention can not only increase the path of water vapor intrusion and prevent water vapor from invading the display panel by arranging the spacer unit with a specific structure; it can also reduce the orientation layer by virtue of the leveling effect of the orientation layer. The contact area with the sealing body layer correspondingly increases the contact area between the sealing body layer and the spacer unit, thereby enhancing the bonding strength of the two substrates, and further preventing water vapor from invading the panel; in addition, it can support the panel in the cutting support area , To avoid the uneven force when the panel is cut, which will cause the panel to lift up, break, and scratch the circuit with glass fragments.

Of course, the present invention can also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications All should belong to the protection scope of the claims of the present invention.

1‧‧‧Display device

101‧‧‧Display area

102‧‧‧Border Area

11‧‧‧First substrate

12‧‧‧Second substrate

13‧‧‧Spacer unit

131‧‧‧Main structure

1311‧‧‧First surface

135‧‧‧Protrusion

14‧‧‧Sealing body layer

15‧‧‧First orientation layer

16‧‧‧Second orientation layer

θ 3‧‧‧The third included angle

L1‧‧‧Depth

L2‧‧‧Thickness

W1‧‧‧Width

S1‧‧‧Top surface

S2‧‧‧Bottom

H1‧‧‧Side

Claims (21)

A spacer unit, the spacer unit comprising: a main structure having a first surface; at least one first groove located on the first surface of the main structure, the first groove being along a first surface And a plurality of second grooves located on the first surface of the main structure, the second grooves are arranged along a second direction, the first direction and the second direction are at a first angle, the The first included angle is greater than 0° and less than or equal to 90°. According to the spacer unit according to claim 1, each of the second grooves has a first end, and a plurality of the first ends are respectively connected with the first grooves. According to the spacer unit according to claim 2, a plurality of the second grooves connected to the same first groove are arranged on the same side of the first groove. The spacer unit according to claim 2, wherein the first surface includes a first side area, a central area, and a second side area, and the central area is located between the first side area and the second side area , Wherein the spacer unit includes: two first grooves, respectively located in the first side area and the second side area; a plurality of the second grooves, respectively located in the first side area and the second side area Side regions, and a plurality of the second grooves connected to the same first groove are arranged in parallel; Wherein, the first groove and the second groove of the first side area are respectively arranged symmetrically with the first groove and the second groove of the second side area. The spacer unit according to claim 4, further comprising: a plurality of third grooves, the third grooves are block-shaped, located in the central area and arranged along the first direction to be at least a row. According to the spacer unit according to claim 5, the third grooves are arranged in at least two rows, and the third grooves in two adjacent rows are arranged in a chevron pattern. The spacer unit according to claim 4, further comprising: at least one third groove located in the central area of the first surface of the main structure, the third groove being along the first A plurality of fourth grooves are located in the central area of the first surface of the main structure, the fourth grooves are arranged along a third direction, and the first direction and the third direction form a second angle , The second included angle is greater than 0° and less than or equal to 90°. According to the spacer unit according to claim 7, the first included angle and the second included angle are the same or different. The spacer unit according to claim 7, wherein the spacer unit includes two third grooves, a part of the fourth groove includes a second end and a third end, and the second end is connected In one of the third grooves, the third end is connected to the other of the third grooves. The spacer unit according to claim 7, the spacer unit includes four third grooves, the fourth groove includes a second end and a third end, part of the fourth groove The second end and the third end are respectively connected to two of the third grooves, and the second end and the third end of the remaining fourth groove are respectively connected to the other two third grooves . According to the spacer unit according to claim 7, a plurality of the second grooves connected to the same first groove are arranged at equal intervals, a plurality of the fourth grooves connected to the same third groove, etc. Distance interval setting. According to the spacer unit according to claim 7, a plurality of protrusions are formed oppositely between the first groove, the second groove, the third groove, and the fourth groove adjacent to each other, and the protrusions include A top surface and a bottom surface, the area of the top surface is smaller than the area of the bottom surface, and the distance between any two points on the top surface is less than 10 μm. According to the spacer unit of claim 12, the protrusion further includes a side surface, the side surface and the bottom surface form a third included angle, and the third included angle is greater than or equal to 60° and less than 90°. According to the spacer unit of claim 12, the first groove, the second groove, the third groove, and the fourth groove have a depth in a direction perpendicular to the first surface, and the first groove The depths of a groove, the second groove, the third groove, and the fourth groove are the same or different; the first groove, the second groove, the third groove, and the fourth groove The groove has a width along a direction parallel to the first surface, and the widths of the first groove, the second groove, the third groove, and the fourth groove are the same or different. The spacer unit according to claim 14, the main structure has a thickness in a direction perpendicular to the first surface, the first groove, the second groove, the third groove, and the fourth groove The depth of the groove is less than or equal to the thickness. A display device comprising: a first substrate; a second substrate disposed opposite to the first substrate, and the first substrate and the second substrate jointly define an adjacent display area and a frame area A sealing body layer, located between the first substrate and the second substrate, surrounding the display area, and disposed at the junction of the display area and the frame area; a display molecular layer, sandwiched between the first substrate and Between the second substrates, located in the display area, and the sealing body layer surrounds the display molecular layer; and A spacer unit is disposed at the junction of the display area and the frame area and/or the frame area, and the spacer unit includes: a main structure with a first surface; at least one first groove, Is arranged on the first surface of the main structure, the first groove is arranged along a first direction; a plurality of second grooves are arranged on the first surface of the main structure, and the second groove is arranged along a The second direction is set, the first direction and the second direction form a first included angle, and the first included angle is greater than 0° and less than or equal to 90°. The display device according to claim 16, the first surface includes a first side area, a central area, and a second side area, the central area is located between the first side area and the second side area, the The first groove and the second groove are both located in the first side area and the second side area, and the spacer unit further includes: at least one third groove located on the first surface of the main structure In the central area, the third groove is arranged along the first direction; a plurality of fourth grooves are located in the central area of the first surface of the main structure, and the fourth groove is arranged along a third direction. One direction and the third direction form a second included angle, and the second included angle is greater than 0° and less than or equal to 90°. According to the display device according to claim 16, the first direction is a direction along the outer edge of the display area of the first substrate. The display device according to claim 16, further comprising: a first alignment layer extending from the display area to the frame area and located on the spacer unit, the spacer The unit is located on the first substrate; a second alignment layer, the second alignment layer extends from the display area to the frame area, and is located on the second substrate. The display device according to claim 17, the display device further includes a cutting support area, the cutting support area is arranged in the frame area, and the spacer unit is arranged between the display area and the cutting support area and/ Or set in the cutting support area. According to the display device according to claim 20, the depth and/or width of the first groove, the second groove, the third groove, and the fourth groove of the cutting support area are greater than that of the display area and the The depth and/or width of the first groove, the second groove, the third groove and the fourth groove are corresponding to the cutting support areas.

Images