CN103149743A - Display panel - Google Patents

Abstract

A display panel includes a first substrate, a second substrate, a polarizer and a frame glue. The first substrate is disposed relative to the second substrate. The second substrate is located between the first substrate and the polarizer. Polarizers have multiple holes. The frame glue is placed on the polarizer. The frame glue has a plurality of protrusions corresponding to the holes, and the protrusions are respectively accommodated in the corresponding holes. Using the present invention, during the lamination process of covering the substrate, since these protruding parts of the frame glue are accommodated in the holes of the polarizer, the stability of the frame glue attached to the polarizer is increased, without causing the substrate to be covered. It collapses under pressure during lamination, and due to the increased adhesion of the frame glue, the colloid between the covering substrate and the polarizer can also be effectively blocked in the frame glue to prevent glue overflow.

Description

display panel

technical field

The present invention relates to a display panel, and in particular to a display panel with a frame glue adhesion enhancing structure.

Background technique

With the advent of the digital age, the technology of display devices has grown rapidly and has become an indispensable electronic product, so the technical and functional requirements for display devices are also getting higher and higher. Among them, liquid crystal display devices are popular among high-end products because of their high brightness and large viewing angle.

A liquid crystal display device mainly includes a liquid crystal display panel and a backlight module. The main structure of the liquid crystal display panel is shown in FIG. 1 . The liquid crystal display panel 1 includes a color filter substrate 10 , a thin film transistor array substrate 11 , polarizers 12 , 13 , and a cover substrate 14 . As shown in Figure 1, the color filter substrate 10 and the thin film transistor array substrate 11 are paired and combined, and the polarizers 12 and 13 are respectively arranged above the color filter substrate 10 and below the thin film transistor array substrate 11 to cover the substrate. 14 is pasted on the polarizer 12 by colloid 15 .

Generally, the covering substrate bonding process is a direct bonding (Direct bonding, also known as direct bonding) process. This full lamination process is mainly to apply the frame glue 16 around the polarizer 12 first, then irradiate the frame glue 16 with ultraviolet light to cure it, and then spread the glue 15 evenly on the area surrounded by the frame glue 16 Finally, the cover substrate 14 is pasted on the polarizer 12 by curing the glue 15 . However, because the size of the polarizer 12 is insufficient, the frame glue 16 will straddle the side surface 120 of the polarizer 12 during the coating process, and cannot be completely coated on the polarizer 12, and the strength of the frame glue 16 is insufficient to be effective. Blocking the force of the colloid 15 from flowing outwards will cause the colloid 15 to overflow, which will eventually cause the bonding failure of the covering substrate 14, and may even cause the colloid 15 to flow into the liquid crystal display device and cause damage.

Contents of the invention

One of the objectives of the present invention is to provide a display panel to prevent the sealant from collapsing or displacing during the lamination process of covering the substrate, resulting in glue overflowing.

In order to achieve the above advantages, the present invention proposes a display panel including a first substrate, a second substrate, a polarizer, and a sealant. The first substrate is arranged relative to the second substrate. The second substrate is located between the first substrate and the polarizer, and the polarizer has a plurality of holes. The frame glue is arranged on the polarizer. The sealant has a plurality of protrusions corresponding to the holes, and the protrusions are accommodated in the corresponding holes respectively.

In an embodiment of the present invention, the above-mentioned second substrate has a display area and a non-display area, the non-display area is located around the display area, and the holes of the polarizer overlap with the non-display area of the second substrate.

In an embodiment of the present invention, the above-mentioned display panel further includes a covering substrate and glue. The cover substrate is located on the side of the polarizer facing away from the second substrate, and the sealant is located between the cover substrate and the second substrate. The colloid is arranged between the polarizer and the cover substrate, and the frame glue surrounds the colloid. The covering substrate is bonded to the polarizer by colloid.

In an embodiment of the present invention, the above-mentioned cover substrate has at least one mark. The marks correspond to at least one of the holes of the polarizer.

In an embodiment of the present invention, the above-mentioned cover substrate includes a protection substrate or a touch substrate.

In an embodiment of the present invention, the above-mentioned second substrate has at least one mark. The marks correspond to at least one of the holes of the polarizer.

In an embodiment of the present invention, the above-mentioned first substrate is a thin film transistor array substrate, and the second substrate is a color filter substrate.

In an embodiment of the present invention, the above-mentioned second substrate has a light-shielding layer, and the holes of the polarizer overlap with the light-shielding layer.

In an embodiment of the present invention, the above-mentioned polarizer has a plurality of sides, and the holes of the polarizer are arranged around the sides.

In an embodiment of the present invention, the above-mentioned polarizer has a plurality of sides, each hole is disposed along one of the sides, and the diameter of each hole extends along the corresponding side.

In an embodiment of the present invention, the above-mentioned polarizer is rectangular. The rectangle has two long sides opposite to each other and two short sides opposite to each other, and the holes of the polarizer are respectively arranged along these long sides.

In an embodiment of the present invention, the above-mentioned polarizer is rectangular. The rectangle has two long sides opposite to each other and two short sides opposite to each other. The number of the holes in the polarizer is two, which are respectively arranged along the long sides, and the diameter of each hole extends along the long sides.

In an embodiment of the present invention, the shape of the hole of the polarizer includes a rectangle, a circle, an ellipse, a semicircle or a triangle.

In an embodiment of the present invention, the polarizer has a plurality of holes, and the sealant has a plurality of protrusions corresponding to these holes. When the sealant is placed on the polarizer, the protrusions of the sealant are accommodated in the corresponding to these holes. Under such a structural design, during the bonding process of covering the substrate, since the protruding parts of the frame glue are accommodated in the holes of the polarizer, the stability of the frame glue attached to the polarizer is increased without It will collapse under pressure when the cover substrate is bonded, and due to the increased adhesion of the frame glue, the colloid between the cover substrate and the polarizer can also be effectively blocked in the frame glue to prevent glue overflow. In addition, the holes in the polarizer can serve as alignment references when the cover substrate is bonded, or as alignment references when the polarizer is bonded.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a conventional liquid crystal display panel.

FIG. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.

FIG. 3 is a schematic top view of a polarizer according to an embodiment of the present invention.

FIG. 4 is a schematic top view of a polarizer according to another embodiment of the present invention.

FIG. 5 is a schematic top view of a polarizer according to another embodiment of the present invention.

FIG. 6 is a schematic top view of a polarizer according to another embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of a polarizer according to another embodiment of the present invention.

FIG. 8A is a schematic diagram of a bonding process of polarizers according to another embodiment of the present invention.

FIG. 8B is a schematic diagram of the bonding process of the cover substrate according to another embodiment of the present invention.

Among them, reference signs:

1: LCD display panel

10: Color filter substrate

11: TFT array substrate

12, 13: Polarizer

14: Covering the substrate

15: colloid

16: Frame glue

120: side

2. 2d: display panel

20: First Substrate

21, 21d: second substrate

22, 22a, 22b, 22c: Polarizer

23: Frame glue

24, 24d: cover substrate

25: colloid

210: shading layer

211, 241: mark

220, 220a, 220b, 220c: holes

230: Protrusion

221, 222, 223, 224: side

A1: display area

A2: Non-display area

D1, D2: aperture

Detailed ways

Please refer to FIG. 2 . FIG. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention. The display panel 2 is, for example, a liquid crystal display panel or a self-luminous display panel. As shown in FIG. 2 , the display panel 2 described in this embodiment includes a first substrate 20 , a second substrate 21 , a polarizer 22 and a sealant 23 . The first substrate 20 is disposed relative to the second substrate 21 , the first substrate 20 is, for example, a thin film transistor array substrate, and the second substrate 21 is, for example, a color filter substrate, but the present invention is not limited thereto. The polarizer 22 has a plurality of holes 220 , and the second substrate 21 is located between the first substrate 20 and the polarizer 22 . The frame glue 23 is disposed on the polarizer 22, and the frame glue 23 has a plurality of protrusions 230 corresponding to the holes 220 of the polarizer 22, and these protrusions 230 are accommodated in the corresponding holes 220 respectively. . In detail, when the sealant 23 is formed on the polarizer 22, part of the sealant 23 will flow into the holes 220 of the polarizer 22, and the part of the sealant 23 flowing into the holes 220 will protrude after curing. Section 230.

Based on the above, please continue to refer to FIG. 2 , the display panel 2 described in this embodiment further includes a covering substrate 24 and a glue 25 . The cover substrate 24 is located on the side of the polarizer 22 facing away from the second substrate 21, and the sealant 23 is located between the cover substrate 24 and the second substrate 21. The cover substrate 24 described in this embodiment is, for example, a protective substrate or a touch panel. Control base material, select according to the demand of actual product, the present invention is not limited to this. The glue 25 is disposed between the polarizer 22 and the cover substrate 24 , and the frame glue 23 surrounds the glue 25 . The cover substrate 24 is bonded to the polarizer 22 through a glue 25 . The glue 25 in this embodiment is, for example, UV glue or heating glue, but the invention is not limited thereto.

Based on the above, as shown in FIG. 2 , the second substrate 21 in this embodiment has a light-shielding layer 210 , and the light-shielding layer 210 is, for example, a black matrix (Black Matrix, BM). In this embodiment, the display area A1 and the non-display area A2 can be defined on the second substrate 21 through the light-shielding layer 210. The non-display area A2 is located around the display area A1. The defined area surrounded by the layer 210, and the light-shielding layer 210 is located in the non-display area A2. As shown in FIG. 2 , the holes 220 of the polarizer 22 in this embodiment overlap with the light-shielding layer 210 of the second substrate 21 , that is to say, the holes 220 of the polarizer 22 are stacked on top of each other. The non-display area A2 of the second substrate 21 .

Please refer to FIG. 3 , which is a schematic top view of a polarizer according to an embodiment of the present invention. As shown in FIG. 3 , the polarizer 22 in this embodiment has a plurality of sides 221 , 222 , 223 , 224 , and the holes 220 of the polarizer 22 surround these sides 221 , 222 , 223 , 224 . That is to say, these holes 220 are distributed on the polarizer 22 along these sides 221, 222, 223, 224, and its advantage is that the structural strength of the polarizer 22 described in this embodiment is strong, when the polarizer 22 sticks When it is attached to the second substrate 21 , the problem of the deviation of the polarizer 22 will not occur. In FIG. 3, the number of holes 220 arranged along the sides 221, 223 is 8, and the number of holes 220 arranged along the sides 222, 224 is 4. The configuration of the number of these holes 220 is only one of the present invention. In one embodiment, the present invention is not limited thereto. The number of these holes 220 can be appropriately adjusted depending on the size of the display panel 2, and the distance between two adjacent holes 220 in these holes 220 can be consistent or Can be adjusted according to needs. In addition, in Fig. 3, the shape of these holes 220 that the polarizer 22 has is, for example, a rectangle, but the present invention is not limited thereto, and the shape of these holes 220 can also be, for example, a circle, an ellipse, a semicircle or a triangle .

Please refer to FIG. 4 , which is a schematic top view of a polarizer according to another embodiment of the present invention. The polarizer 22a described in this embodiment is roughly similar to the polarizer 22 shown in FIG. A plurality of holes 220a are arranged around these sides 221, 222, 223, 224, and each hole 220a is arranged along one of these sides 221, 222, 223, 224, and the diameter D1 of each hole 220a Extend along the corresponding sides 221, 222, 223, 224, for example, corresponding to the hole 220a of the side 221, its aperture D1 extends along the directions of the side 222 and the side 224 respectively, and corresponds to the side The hole 220a of the side 222 has its aperture D1 extending toward the side 221 and the side 223 respectively so that the shape of the hole 220a corresponding to the side 221, 222 is elongated or oblong, but not limited thereto. . The apertures of the holes 220a can be consistent or can be adjusted according to requirements. In addition, the holes 220a of the polarizer 22a described in this embodiment are elongated or oblong (that is, the aperture D1 of the hole 220a extends along the corresponding sides 221, 222, 223, 224), which has the advantage of That is, the stamping jig used to make these elongated or oblong holes 220a on the polarizer 22a has elongated protrusions or oblong protrusions, and the stamping jig has a simpler appearance, so it is easier to manufacture .

Please refer to FIG. 5 , which is a schematic top view of a polarizer according to another embodiment of the present invention. The polarizer 22b described in this embodiment is roughly similar to the polarizer 22 shown in FIG. 223 is the longer two opposite sides, and the sides 222, 224 are the shorter two opposite sides, the plurality of holes 220b of the polarizer 22b are arranged along the longer sides 221, 223 respectively, and the shorter ones The hole 220b is not provided near the sides 222 and 224 . Although the polarizer 22b in this embodiment only has the holes 220b along the longer sides 221 and 223, it can also increase the stability of the glue frame 23 attached to the polarizer 22b.

Please refer to FIG. 6 , which is a schematic top view of a polarizer according to another embodiment of the present invention. The polarizer 22c described in this embodiment is roughly similar to the polarizer 22 shown in FIG. 223 is the two longer opposite sides, and the sides 222 and 224 are the two shorter opposite sides. The polarizer 22c has two holes 220c, which are arranged along the longer sides 221 and 223 respectively. The holes 220c are not provided near the shorter sides 222, 224, and the diameter D2 of each hole 220c extends along the corresponding longer sides 221, 223, for example, corresponding to the longer side 221 The holes 220c, the diameters D2 of which extend towards the shorter side 222 and the direction of the side 224 respectively, so that the shape of the hole 220c corresponding to the longer side 221 is, for example, elongated or oblong, and then Not limited to this. The apertures of the holes 220a can be consistent, or can be adjusted as required.

Please refer to FIG. 7 , which is a schematic cross-sectional view of a display panel according to another embodiment of the present invention. As shown in FIG. 7, the display panel 2d in this embodiment is roughly similar to the display panel 2 shown in FIG. There are at least one mark 211 , 241 respectively, and the mark 211 and the mark 241 respectively correspond to at least one of the plurality of holes 220 of the polarizer 22 . In this embodiment, the number of marks 211, 241 on the second substrate 21d and the covering substrate 24d are two respectively, the present invention is not limited thereto, and the number of marks 211, 241 can be adjusted according to the actual situation. adjustment. In this implementation, the purpose of setting the marks 211 and 241 on the second substrate 21d and the cover substrate 24d is, as shown in FIG. The hole 220 of the polarizer 22 can be used to align with the mark 211 on the second substrate 22d. For the same reason, as shown in FIG. 8B, when the cover substrate 24d is ready to be attached to the polarizer 22, the operators on the production line can use the marks 241 on the cover substrate 24d to align with the holes 220 of the polarizer 22. . It is worth mentioning that the size or shape of the holes 220 for alignment with the second substrate 21d and the cover substrate 24d may be different from other holes 220, for example, for alignment with the second substrate. 21d and the cover substrate 24d for alignment, the size of these holes 220 is, for example, smaller than other holes 220 not used for positioning, or the shape of these holes 220 for alignment with the second substrate 21d and the cover substrate 24d is, for example, is a triangle, and other holes 220 not used for positioning are, for example, rectangles, but the present invention is not limited thereto. With such a structural design, when the polarizer 22 is bonded to the second substrate 21 d or the cover substrate 24 d is bonded to the polarizer 22 , the alignment can be performed through the holes 220 of the polarizer 22 more clearly.

To sum up, in the embodiment of the present invention, the polarizer has a plurality of holes, and the sealant has a plurality of protrusions corresponding to these holes. When the sealant is placed on the polarizer, the protrusions of the sealant respectively accommodated in these corresponding holes. Under such a structural design, during the lamination process of covering the substrate, since the protruding parts of the sealant are accommodated in the holes of the polarizer, the stability of the sealant attached to the polarizer is increased without When the cover substrate is laminated, it collapses under pressure, and due to the increased adhesion of the frame glue, the colloid between the cover substrate and the polarizer can also be effectively blocked in the frame glue to prevent glue overflow. In addition, the holes in the polarizer can serve as alignment references when the cover substrate is bonded, or as alignment references when the polarizer is bonded.

Certainly, the present invention also can have other various 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 All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (13)

1. a display panel, is characterized in that, comprising:

One first substrate;

One second substrate arranges with respect to this first substrate;

One polaroid, wherein this second substrate is between this first substrate and this polaroid, and this polaroid has a plurality of holes; And

One frame glue is arranged on this polaroid, and this frame glue has a plurality of protuberances corresponding with those holes, and those protuberances are placed in respectively in corresponding those holes.

2. display panel according to claim 1, is characterized in that, this second substrate has a viewing area and a non-display area, and this non-display area is positioned at the periphery of this viewing area, and this non-display area of those holes of this polaroid and this second substrate is overlapped.

3. display panel according to claim 1, is characterized in that, more comprises:

One covered substrate is positioned at this polaroid back to a side of this second substrate, and this frame glue is between this covered substrate and this second substrate; And

Colloid is arranged between this polaroid and this covered substrate, and this frame glue is surrounded on this colloid, and this covered substrate is bonding on this polaroid by this colloid.

4. display panel according to claim 3, is characterized in that, this covered substrate has at least one mark, this mark corresponding to those holes of this polaroid at least one of them.

5. display panel according to claim 3, is characterized in that, this covered substrate comprises protection base material or a touch-control base material.

6. display panel according to claim 1, is characterized in that, this second substrate has at least one mark, this mark corresponding to those holes of this polaroid at least one of them.

7. display panel according to claim 1, is characterized in that, this first substrate is a thin-film transistor array base-plate, and this second substrate is a colored optical filtering substrates.

8. display panel according to claim 1, is characterized in that, this second substrate has a light shield layer, and those holes and this light shield layer of this polaroid are overlapped.

9. display panel according to claim 1, is characterized in that, this polaroid has a plurality of sides, and those holes of this polaroid arrange around those sides.

10. display panel according to claim 1, is characterized in that, this polaroid has a plurality of sides, and each hole arranges along one of them of those sides, and the aperture of each hole is along this side extension of correspondence.

11. display panel according to claim 1 is characterized in that, this polaroid is a rectangle, and this rectangle has respect to one another two long limit and two minor faces respect to one another, and those holes of this polaroid arrange along those long limits respectively.

12. display panel according to claim 1, it is characterized in that, this polaroid is a rectangle, and this rectangle has respect to one another two long limit and two minor faces respect to one another, each hole arranges along one of them of those long limits, and extend along those long limits in the aperture of each hole.

13. display panel according to claim 1 is characterized in that, the shape of this hole of this polaroid comprises a rectangle, a circle, an ellipse, a semicircle or triangle.

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