TWI805225B - Display device - Google Patents

Abstract

The present invention provides a display device which includes a display panel, a glass cover plate, a light-shielding layer, a sealant, a middle frame, a first protruding structure and a first groove structure. The glass cover plate covers the display panel. The light-shielding layer is arranged on the glass cover plate and surrounds the display panel. The sealant is arranged on the light shielding layer and has a first surface facing the light shielding layer and a second surface away from the light shielding layer. The middle frame has a third surface facing the sealant. The first protruding structure is disposed on the second surface of the sealant. The first protruding structure includes a first sub-protrusion structure and a second sub-protrusion structure, so the second sub-protrusion structure is stacked on the first sub-protrusion structure. The first groove structure is disposed on the third surface of the middle frame, wherein the first protrusion structure is connected to the first sub-protrusion structure. The groove structure is correspondingly arranged.

Description

display device

The present invention relates to a display device, and in particular to an ultra-narrow bezel display device with improved anti-drop performance.

With the development of technology, display devices are widely used in many electronic products, such as mobile phones, tablet computers, watches and so on.

In an ultra-narrow bezel display device, the middle frame is usually designed as a flat plane, and is assembled with a display panel and a backlight module through a frame glue. Due to the ultra-narrow frame, the middle frame is prone to fall off during the drop/pull test, which affects the quality of the display device.

In the prior art, a concave-convex structure is provided on the surface of the light-shielding layer (ink) facing the sealant to improve the drop resistance of the display device. However, according to the existing ink manufacturing capacity, on the one hand, the concave-convex structure and the light-shielding layer are not arranged on the same layer, which increases the manufacturing process; The case where the concave-convex structure is separated from the light-shielding layer.

Therefore, how to provide a display device that is easy to manufacture, improves the adhesion between the frame glue and the middle frame, and improves the stress resistance is really a need to be solved. one of the problems.

Embodiments of the present invention provide a display device, which can achieve fitting between the sealant and the middle frame, improve the adhesive force between the sealant and the middle frame, and improve the stress resistance of the display device.

A display device according to an embodiment of the present invention includes a display panel; a glass cover plate covering the display panel; a light-shielding layer surrounding the display panel and set on the glass cover plate; a frame glue set on the display panel The light-shielding layer, and the sealant has a first surface facing the light-shielding layer and a second surface away from the light-shielding layer; a middle frame, the middle frame has a surface facing the sealant The third surface; a first raised structure, disposed on the second surface of the sealant, the first raised structure includes a first sub-raised structure and a second sub-raised structure, the The second sub-protrusion structure is stacked on the first sub-protrusion structure; a first groove structure is arranged on the third surface of the middle frame; wherein, the first protruding structure and the first sub-protrusion structure A groove structure is provided correspondingly.

5um，H2

5um。 The above display device, wherein the first sub-protrusion structure has a first height H1, and the second sub-protrusion structure has a second height H2, wherein H1

5um, H2

5um.

The above display device, wherein the first height H1 is greater than or equal to the second height H2.

△1

130°，50°

△2

130°。 The above display device, wherein, the first sub-protrusion structure has a first side surface and a first upper surface, and the first side surface of the first sub-protrusion structure is connected to the first The upper surface forms a first included angle Δ1, the second sub-protrusion structure has a second side surface and a second upper surface, the second side surface of the second sub-protrusion structure and the first The two upper surfaces form a second included angle △2, wherein, 50°

△1

130°, 50°

△2

130°.

W2/W1

0.8。 The above display device, wherein the first sub-protrusion structure has a first upper surface, the first upper surface has a first width W1, and the second sub-protrusion structure has a second upper surface surface, the second upper surface has a second width W2, wherein, 0.5

W2/W1

0.8.

In the above display device, wherein the first raised structure further includes a third sub-raised structure, and the third sub-raised structure is stacked on the second raised sub-structure.

5um。 The above display device, wherein, the third sub-protrusion structure has a third height H3, wherein H3

5um.

△3

130°。 The display device as described above, wherein, the third sub-protrusion structure has a side surface and an upper surface, and the side surface of the third sub-protrusion structure and the upper surface form a third included angle Δ 3, where, 50°

△3

130°.

W3/W2

0.8。 The above display device, wherein, the upper surface of the third sub-protrusion structure has a third width W3, wherein, 0.5

W3/W2

0.8.

A1/A2

50%。 The above display device, wherein the first groove structure defines a first area in the middle frame, and in the first area, the first groove structure has a first area A1, not The part forming the first groove structure has a second area A2, wherein, 10%

A1/A2

50%.

100um。 The above display device, wherein there is a first distance S1 between the first protrusion structure and the side edge of the middle frame, wherein S1

100um.

The above display device, wherein the projection of the first groove structure in a direction perpendicular to the middle frame is grid-like.

The above display device, wherein the projection of the first groove structure in a direction perpendicular to the middle frame is dot-shaped.

The above display device, wherein the dot shape may be circular, elliptical or polygonal.

10um。 The above display device, wherein, the first raised structure has a fourth height H4, wherein H4

10um.

The display device as described above, wherein the display device further includes a second protrusion structure disposed on the first surface of the sealant; a second groove structure disposed in the direction of the light-shielding layer A fourth surface of the sealant; wherein, the second protrusion structure is arranged corresponding to the second groove structure.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

100: display device

101: Display panel

102: glass cover

103: shading layer

104: frame glue

105: Middle frame

1051: third surface

106: The first raised structure

1061: The first sub-bulge structure

1061S: first side surface

1061T: first upper surface

1062: the second sub-bulge structure

1062S: second side surface

1062T: second upper surface

107: The first groove structure

H1, H2, H4: Height

W1, W2: width

S1: Spacing

Q1,Q2: area

Z1: the first zone

FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram along A-A' of Fig. 1 .

FIG. 3 is an enlarged schematic view of the structure of the area Q1 in FIG. 2 .

FIG. 4 is an enlarged schematic view of a first protrusion structure according to an embodiment of the present invention.

FIG. 5 is a schematic top view of the area Q2 in FIG. 1 .

Fig. 6 is a schematic diagram of the shape of the first groove structure according to an embodiment of the present invention.

The structural principle and working principle of the present invention will be specifically described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural view of a display device according to an embodiment of the present invention, Fig. 2 is a schematic cross-sectional structural view along A-A' of Fig. 1 , and Fig. 3 is an enlarged schematic structural view of area Q1 in Fig. 2 . As shown in FIGS. 1 to 3 , the display device 100 of the present invention includes a display panel 101 and a glass cover 102 , and the glass cover 102 covers the display panel 101 . A light-shielding layer 103 is further disposed on the glass cover 102 , and the light-shielding layer 103 is disposed around the display panel 101 . The sealant 104 is disposed on the light-shielding layer 103 , and the sealant 104 has a first surface facing the light-shielding layer 103 and a second surface away from the light-shielding layer 103 . The middle frame 105 is disposed on the sealant 104 , and the middle frame 105 has a third surface facing the sealant 104 ; the third surface of the middle frame 105 is opposite to the second surface of the sealant 104 . Wherein, the display device 100 further includes at least one first protruding structure 106, the first protruding structure 106 is disposed on the second surface of the sealant 104, and at least one first groove structure is disposed on the third surface of the middle frame 105. 107 , the first protrusion structure 106 of the sealant 104 is set corresponding to the first groove structure 107 of the middle frame 105 . That is to say, the number, shape, height, width and The number, shape, depth, width, etc. of the first groove structure 107 are set correspondingly, so that the first protrusion structure 106 fits well in the first groove structure 107 . In this embodiment, a glass cover is used as an example. In actual operation, a light-transmitting cover of other materials, such as a plastic cover, may also be used, and the present invention is not limited thereto.

5um，H2

5um，H4

10um。 FIG. 4 is an enlarged schematic view of a first protrusion structure according to an embodiment of the present invention. As shown in FIG. 4, specifically, the first raised structure 106 of the present invention includes a first raised sub-structure 1061 and a second raised raised structure 1062, and the second raised raised structure 1062 is stacked on the first raised raised structure. 1061 on. The first sub-protrusion structure 1061 has a first height H1, the second sub-protrusion structure 1062 has a second height H2, and the first height H1 and the second height H2 together constitute a fourth height H4 of the first protruding structure 106 . Among them, the first height H1, the second height H2, and the fourth height H4 need to meet certain requirements, that is, H1

5um, H2

5um, H4

10um.

5um，可確保第一凸起結構106與第一凹槽結構107之間具有足够的接著面積，從而確保顯示裝置100具有足够的抗應力能力(剪切力)；同時便於顯示裝置100在組裝過程中框膠104順利進入第一凹槽結構107中。實際操作中，H1可大於等於H2，從而在第四高度H4一定的情 况下，增加第一凸起結構106與第一凹槽結構107的接著面積。 In the present invention, corresponding to the first protrusion structure 106, the first groove structure 107 includes a first sub-groove structure and a second sub-groove structure, and the second sub-groove structure is stacked on the first sub-groove structure . The first sub-groove structure has a first height H1, and the second sub-groove structure has a second height H2. In this embodiment, the height of each sub-groove structure of the stacked groove structure

5um, it can ensure that there is a sufficient bonding area between the first protrusion structure 106 and the first groove structure 107, thereby ensuring that the display device 100 has sufficient stress resistance (shearing force); at the same time, it is convenient for the display device 100 to be assembled The middle frame glue 104 enters the first groove structure 107 smoothly. In actual operation, H1 can be greater than or equal to H2, so that the bonding area between the first protruding structure 106 and the first groove structure 107 can be increased when the fourth height H4 is constant.

In the display device 100 of the present invention, a laminated first groove structure 107 is provided on the middle frame 105, and the sealant 104 and the middle frame 105 are fitted together in a mutual fitting manner, for example, the first sub-protrusion structure 1061 is fitted into the In the first sub-groove structure, the second sub-protrusion structure 1062 is embedded in the second sub-groove structure, and the laminated groove structure can greatly increase the bonding area between the frame glue 104 and the middle frame 105, thereby improving the two The bonding force between them and the stress resistance (shearing force) of the display device 100.

W2/W1

0.8；△1與△2之間需滿足如下的關係：50°

△1

130°，50°

△2

130°。本實施例中，△1=△2，實際操作中，不以此為限。 As shown in FIG. 4 again, the first sub-protrusion structure 1061 has at least a first side surface 1061S and a first upper surface 1061T, the first upper surface 1061T has a first width W1, and the first sub-protrusion structure 1061 A first angle Δ1 is formed between the first side surface 1061S and the first upper surface 1061T. The second sub-protrusion structure 1062 has at least a second side surface 1062S and a second upper surface 1062T. The second upper surface 1062T has a second width W2. A second included angle Δ2 is formed between the two upper surfaces 1062T. Among them, the following relationship needs to be satisfied between W1 and W2: 0.5

W2/W1

0.8; △1 and △2 need to meet the following relationship: 50°

△1

130°, 50°

△2

130°. In this embodiment, Δ1=Δ2, and it is not limited to this in actual operation.

W2/W1

0.8。隨著遠離中框105的第三表面，層疊式第一凹槽結構的寬度以一定比例變小，在確保後續與框膠104接著力的同時便於框膠104與中框105的第一凹槽結構107的組裝配合。 In the present invention, corresponding to the first protrusion structure 106, the first sub-groove structure of the first groove structure has a first upper surface, and the first upper surface has a first width W1; the second sub-groove structure has The second upper surface, and the second upper surface has a second width W2. In this embodiment, the first width W1 and the second width W2 satisfy: 0.5

W2/W1

0.8. As it moves away from the third surface of the middle frame 105, the width of the laminated first groove structure becomes smaller in a certain proportion, which is convenient for the first groove of the frame glue 104 and the middle frame 105 while ensuring the subsequent bonding force with the frame glue 104 Assembly fit of structure 107 .

As shown in FIG. 4 , the first sub-protrusion structure 1061 also has a fourth included angle opposite to the first included angle Δ1 , and the second sub-protrusion structure 1062 also has a fifth included angle opposite to the second included angle Δ2 . In this embodiment, the first protruding structure 106 is a symmetrical structure, thus, the first included angle Δ1 is equal to the fourth included angle, and the second included angle Δ2 is equal to the fifth included angle. In actual operation, it is not limited thereto, and the user can set the angle of each included angle according to the actual situation, so that each included angle is between 50° and 130°.

5um，且H2

H3。實際操作中，可設置H3

H2

H1，從而在第四高度H4一定的情况下，增加第一凸起結構106與第一凹槽結構107的接著面積。W3與W2之間需滿足如下的關係：0.5

W3/W2

0.8；△2與△3之間需滿足如下的關係：50°

△2

130°，50°

△3

130°。實際操作中△2可等於△3，但不以此為限 Of course, FIG. 4 of the present invention only shows the situation that the first protrusion structure 106 includes two sub-protrusion structures, and the first protrusion structure 106 may also include three or more sub-protrusion structures. Taking the first raised structure 106 further including a third sub-raised structure (not shown) as an example, the third sub-raised structure of the first raised structure 106 and the first sub-raised structure 1061, the second sub-raised structure The structure 1062 is similar in structure, the third sub-protrusion structure is laminated on the second sub-protrusion structure 1062, the third sub-protrusion structure has a third height H3, and has at least a third side surface and a third upper surface, the first The third upper surface has a third width W3, and a third angle is formed between the third side surface of the third sub-protrusion structure and the third upper surface. Likewise, the first height H1 , the second height H2 and the third height H3 together constitute a fourth height H4 of the first protruding structure 106 . Among them, the third height H3 also satisfies H3

5um, and H2

H3. In actual operation, H3 can be set

H2

H1, so that the bonding area between the first protruding structure 106 and the first groove structure 107 is increased when the fourth height H4 is constant. The following relationship needs to be satisfied between W3 and W2: 0.5

W3/W2

0.8; △2 and △3 need to meet the following relationship: 50°

△2

130°, 50°

△3

130°. In actual operation, △2 can be equal to △3, but it is not limited to this

Based on the same principle, when the first raised structure 106 includes N sub-raised structures (N is an integer greater than 3), for the N sub-raised structures, the gap between the sub-raised structure and the first raised structure is the same. The above relationship needs to be satisfied.

A1/A2

50%。如此一來，可在增加中框105與框膠104的接著面積以提升二者之間的接著力和顯示裝置100的抗應力能力的同時，能够確保第一區域Z1處的中框105的結構强度。為了進一步保證在組裝過程中不破壞第一凹槽結構107，第一凹槽結構107需要與中框105的側邊邊緣之間形成有一定的間距S1，由於第一凸起結構106與第一凹槽結構107相對應設置，間距S1也代表著第一凸起結構106與中框105的側邊邊緣之間的間距S1，其中，S1

100um。本實施 例中，以第一凸起結構106與中框105的內側邊邊緣為例進行說明。 FIG. 5 is a schematic top view of the area Q2 in FIG. 1 . As shown in FIG. 5 , a first groove structure 107 is disposed in the third surface 1051 of the middle frame 105 . The first groove 107 defines a first zone Z1 in the middle frame 105. In the first zone Z1, the first groove structure 107 has a first area A1, and the first zone Z1 is not occupied by the first groove structure 107. Part has a second area A2, wherein, 10%

A1/A2

50%. In this way, the bonding area between the middle frame 105 and the sealant 104 can be increased to improve the bonding force between the two and the stress resistance of the display device 100, and at the same time, the structure of the middle frame 105 at the first zone Z1 can be ensured. strength. In order to further ensure that the first groove structure 107 is not damaged during the assembly process, a certain distance S1 needs to be formed between the first groove structure 107 and the side edge of the middle frame 105, because the first protrusion structure 106 and the first The groove structure 107 is arranged correspondingly, and the distance S1 also represents the distance S1 between the first protruding structure 106 and the side edge of the middle frame 105, wherein, S1

100um. In this embodiment, the first protruding structure 106 and the inner edge of the middle frame 105 are taken as an example for illustration.

As shown in FIG. 5 , in the embodiment shown in FIG. 5 , the projection of the first groove structure 107 in a direction perpendicular to the middle frame 105 is in a grid shape. The present invention is not limited thereto.

Fig. 6 is a schematic diagram of the shape of the first groove structure according to an embodiment of the present invention. As shown in FIG. 6 , the projection of the first groove structure 107 on a direction perpendicular to the middle frame 105 can also be in the shape of a point or a line; the shape of a point can be a circle, an ellipse or a polygon.

In order to further improve the adhesive force between the middle frame and the glass cover, a second raised structure can be further set in the display device of the present invention, and the second raised structure can be set as a single-layer raised structure, or can be set as a A stacked protrusion structure having a plurality of sub-protrusion structures having the same first protrusion structure. The second protruding structure is arranged on the first surface of the frame glue (that is, the surface away from the middle frame), and a second groove structure is arranged on the fourth surface of the light-shielding layer facing the frame glue, and the second protruding structure and the second The groove structure is set correspondingly. That is to say, the number, shape, height, and width of the second protruding structures are set corresponding to the number, shape, depth, and width of the second groove structures, so that the second protruding structures can be well fitted into the second groove structure. Two-groove structure. Therefore, the frame glue and the light-shielding layer cooperate with each other in a manner of fitting, which increases the bonding area between the frame glue and the light-shielding layer, thereby improving the bonding force between the two, and further improving the stress resistance of the display device 100 .

To sum up, according to the embodiment of the present invention, by setting the corresponding protrusion structure and groove structure between the sealant and the middle frame, and the structure of the protrusion structure and the groove structure The structure adopts a multi-layer stacking method, which can effectively realize the fit between the frame glue and the middle frame, improve the adhesion between the frame glue and the middle frame, and improve the stress resistance of the display device, thereby improving the quality of the display device.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and All deformations shall belong to the protection scope of the appended claims of the present invention.

100: display device

102: glass cover

103: shading layer

104: frame glue

105: Middle frame

106: The first raised structure

107: The first groove structure

Claims (15)

A display device, comprising: a display panel; a glass cover plate covering the display panel; a light-shielding layer surrounding the display panel and being arranged on the glass cover plate; a frame glue being set on the light-shielding layer , and the sealant has a first surface facing the light-shielding layer and a second surface away from the light-shielding layer; a middle frame, the middle frame has a third surface facing the sealant ; a first protruding structure, arranged on the second surface of the sealant, the first protruding structure includes a first sub-protruding structure and a second sub-protruding structure, the second sub-protruding structure The protruding structure is stacked on the first sub-protruding structure, the first sub-protruding structure has a first upper surface, the first upper surface has a first width W1, and the second sub-protruding structure has a second upper surface, the second upper surface has a second width W2, wherein, 0.5

W2/W1

0.8; a first groove structure, disposed on the third surface of the middle frame; wherein, the first protrusion structure is disposed corresponding to the first groove structure. The display device according to claim 1, wherein the first sub-protrusion structure has a first height H1, and the second sub-protrusion structure has a second height H2, wherein H1

5um, H2

5um. The display device according to claim 2, wherein the first height H1 is greater than or equal to the second height H2. The display device according to claim 1, wherein the first sub-protrusion structure has a first side surface and a first upper surface, and the first side surface of the first sub-protrusion structure and the The first upper surface forms a first included angle Δ1, the second sub-protrusion structure has a second side surface and a second upper surface, the second side surface of the second sub-protrusion structure and The second upper surface forms a second included angle Δ2, wherein, 50°

△1

130°, 50°

△2

130. The display device according to claim 1, wherein the first raised structure further includes a third sub-raised structure, and the third sub-raised structure is stacked on the second raised sub-structure. The display device according to claim 5, wherein the third sub-protrusion structure has a third height H3, wherein H3

5um. The display device according to claim 6, wherein the third sub-protrusion structure has a side surface and an upper surface, and the side surface and the upper surface of the third sub-protrusion structure form a first Triangular angle △3, where, 50°

△3

130°. The display device according to claim 7, wherein the upper surface of the third sub-protrusion structure has a third width W3, wherein, 0.5

W3/W2

0.8. The display device according to claim 1, wherein the first groove structure defines a first area in the middle frame, and in the first area, the first groove structure has a first area A1, the part where the first groove structure is not formed has a second area A2, wherein, 10%

A1/A2

50%. The display device according to claim 1, wherein there is a first distance S1 between the first raised structure and the side edge of the middle frame, wherein S1

100um. The display device according to claim 1, wherein a projection of the first groove structure in a direction perpendicular to the middle frame is in a grid shape. The display device according to claim 1, wherein the projection of the first groove structure in a direction perpendicular to the middle frame is dot-shaped. The display device according to claim 12, wherein the dot shape can be a circle, an ellipse or a polygon. The display device according to claim 1, wherein the first raised structure has a fourth height H4, wherein H4

10um. The display device according to claim 1, further comprising: a second protrusion structure disposed on the first surface of the sealant; a second groove structure disposed on the light shielding layer toward the A fourth surface of the frame glue; wherein, the second protruding structure is arranged corresponding to the second groove structure.

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