CN217718349U - Display module assembly of separation silver thick liquid infiltration sight - Google Patents

Abstract

The utility model discloses a display module for obstructing a silver paste infiltration visual area, which comprises an upper substrate and a lower substrate which are oppositely arranged, wherein the upper surface of the upper substrate is provided with an upper polaroid, the lower surface of the upper polaroid is provided with an adhesive layer which is bonded with the upper substrate, the upper surface of the lower substrate is provided with at least one grounding PAD, and the upper substrate, the upper polaroid and each grounding PAD are overlapped through silver paste; and a blocking groove is formed between the visible area of the upper polaroid and the silver paste at each position. The display module can prevent silver paste from permeating into the visible area.

Description

Display module assembly of separation silver thick liquid infiltration sight

Technical Field

The utility model relates to a display technology especially relates to a display module assembly of separation silver thick liquid infiltration sight.

Background

The liquid crystal display module comprises an upper substrate and a lower substrate which are oppositely arranged, wherein a liquid crystal material is filled between the upper substrate and the lower substrate, and the upper substrate does not have an external circuit, so that static electricity can be gathered in the manufacturing, transporting and using processes. In the prior art, in order to solve the problem of the static electricity of the upper substrate, silver paste is dotted between the upper substrate and the lower substrate, so that the upper substrate is lapped on the grounding PAD of the lower substrate through the silver paste, and then is grounded through the external circuit of the lower substrate, and the static electricity gathered by the upper substrate is released.

As disclosed in chinese patent document CN202122031288.7, including the relative upper substrate and infrabasal plate that sets up, the upper surface of infrabasal plate is provided with at least one ground connection PAD, through silver thick liquid overlap joint between upper substrate and each ground connection PAD, a serial communication port, the silver thick liquid is including at least an overlap joint portion, at least a climbing portion and an at least extension that connect gradually, and each overlap joint portion overlaps with each ground connection PAD one-to-one, and each climbing portion follows the side of upper substrate climbs to the upper surface of upper substrate from the ground connection PAD that corresponds, and each extension is followed the upper surface edge of upper substrate extends. This liquid crystal display module assembly not only passes through when the point silver thick liquid not only make by overlap joint portion and climbing portion the silver thick liquid is followed each ground connection PAD climbing of infrabasal plate extremely the upper surface of upper substrate passes through moreover the extension has enlarged the silver thick liquid with area of contact between the upper substrate makes the stability of silver thick liquid is higher, and the impedance is littleer, and electrostatic discharge ability is better.

However, the silver paste contains a solvent, and when contacting the upper polarizer on the surface of the upper substrate, the silver paste is dissolved in the adhesive layer on the surface of the upper polarizer, so that corrosion bubbles are generated between the upper polarizer and the upper substrate; the solvent of part silver thick liquid is darker to the degree of corrosion on the viscose layer, and the corruption bubble can get into display module assembly's visual area, leads to serious outward appearance bad.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a display module assembly can separate silver thick liquid and permeate in the visual region.

The utility model discloses the technical problem that will solve realizes through following technical scheme:

a display module for blocking a silver paste permeation visual area comprises an upper substrate and a lower substrate which are oppositely arranged, wherein an upper polaroid is arranged on the upper surface of the upper substrate, an adhesive layer adhered to the upper substrate is arranged on the lower surface of the upper polaroid, at least one grounding PAD is arranged on the upper surface of the lower substrate, and the upper substrate, the upper polaroid and each grounding PAD are in lap joint through silver paste; and a blocking groove is formed between the visible area of the upper polaroid and the silver paste at each position.

Furthermore, the number of the barrier grooves is at least one, one group of the barrier grooves corresponds to one silver paste, and each group of the barrier grooves comprises at least one barrier groove.

Further, each of the barrier grooves extends along the edge shape of the visible area, and each of the barrier grooves is arranged along the edge shape of the visible area.

Further, the distance between the barrier groove and the visible area is not less than 0.5mm.

Further, the width of separation groove is about 0.4 mm.

Further, silver thick liquid is including an at least overlap joint portion, an at least climbing portion and an at least extension that connect gradually, and each overlap joint portion and each ground connection PAD one-to-one overlap joint, each climbing portion edge the side of going up the base plate climbs to from the ground connection PAD that corresponds the upper surface of going up the base plate, each extension is followed the upper surface edge of going up the base plate extend and with the edge of going up the polaroid contacts.

Furthermore, a connecting line of the lap joint part and the climbing part is parallel to a first direction, a connecting line of the climbing part and the extension part is parallel to a second direction, and the first direction is perpendicular to the second direction; the length of the lap joint part along the first direction is 2.5mm, and the length of the lap joint part along the second direction is 2.5mm; the length of the climbing part along the second direction is 2.5mm, and the length of the part climbing to the upper surface of the upper substrate along the first direction is 0.5mm; the extension has a length in the first direction of 0.5mm and a length in the second direction of 3.5mm.

Further, a lower polarizer is arranged on the lower surface of the lower substrate.

Further, a conductive shielding film is further arranged on the upper surface of the upper polarizer, or the upper polarizer has conductivity so as to be used as the conductive shielding film.

Furthermore, form the visual region through sealed glue encircleing between upper substrate and the infrabasal plate, be provided with at least a shelves strip in the clearance between upper substrate and the infrabasal plate, each shelves strip is located between sealed glue and the silver thick liquid everywhere.

The utility model discloses following beneficial effect has: this display module assembly is through set up the separation groove on going up the polaroid, utilize separation groove prevents silver thick liquid infiltration everywhere to go up in the visual zone of polaroid, go up the viscose layer of polaroid because of with silver thick liquid contact and quilt solvent in the silver thick liquid dissolves produced corruption bubble can be followed discharge in the separation groove, and can't stride the separation groove invades visual zone from peripheral region in, stretches into simultaneously last silver thick liquid between polaroid and the last base plate can be because self surface tension stops the infiltration, even the silver thick liquid that stretches into too much also can be preferentially filled in the separation groove, can effectively slow down in the silver thick liquid further spreads visual zone, has stopped the outward appearance of module bad.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic view of a part of a display module provided by the present invention.

Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of the display module shown in fig. 1.

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of the display module shown in FIG. 1.

FIG. 4 isbase:Sub>A sectional view taken along line A-A of the display module shown in FIG. 1.

Detailed Description

The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," "disposed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements or may be in an interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1 and 2, a display module for blocking silver paste 4 from permeating into a visual area comprises an upper substrate 1 and a lower substrate 2 which are oppositely arranged, wherein an upper polarizer 3 is arranged on the upper surface of the upper substrate 1, an adhesive layer 31 which is bonded with the upper substrate 1 is arranged on the lower surface of the upper polarizer 3, at least one grounding PAD is arranged on the upper surface of the lower substrate 2, and the upper substrate 1, the upper polarizer 3 and each grounding PAD are in lap joint through the silver paste 4; a blocking groove 32 is formed between the visible region 100 of the upper polarizer 3 and each silver paste 4.

This display module assembly is through set up separation groove 32 on last polaroid 3, utilize separation groove 32 prevents everywhere silver thick liquid 4 infiltration to go up in polaroid 3's the visible region 100, go up polaroid 3's viscose layer 31 because of with silver thick liquid 4 contact and quilt the produced corruption bubble of solvent dissolution in the silver thick liquid 4 can be followed discharge in the separation groove 32, and can't stride separation groove 32 invades visible region 100 from peripheral region in, stretch into simultaneously last silver thick liquid 4 between 3 and the last base plate 1 is in the edge of separation groove 32 can stop the infiltration because self surface tension, even stretch into silver thick liquid 4 too much also can preferentially fill in separation groove 32, can effectively slow down silver thick liquid 4 further stretch and permeate in visible region 100, has stopped the outward appearance of module bad.

The adhesive layer 31 may be, but not limited to, PSA adhesive or PVA adhesive.

The blocking groove 32 penetrates through the upper and lower surfaces of the upper polarizer 3 from top to bottom, and the upper polarizer 3 can be processed and manufactured by laser cutting or cutter cutting.

The number of the barrier grooves 32 is at least one, each group of the barrier grooves 32 comprises at least one barrier groove 32, and one group of the barrier grooves 32 corresponds to one silver paste 4 and is used for blocking the silver paste 4 at the corresponding position from permeating.

The blocking grooves 32 may be arc-shaped grooves, linear grooves, diagonal grooves, wavy grooves, and the like, or may be circular grooves, rectangular grooves, and the like, and according to specific requirements, preferably, each blocking groove 32 extends along the edge shape of the visible area 100, and each group of blocking grooves 32 is arranged along the edge shape of the visible area 100.

The distance between the blocking groove 32 and the visible area 100 is not less than 0.5mm to avoid that the blocking groove 32 is mistakenly opened in the visible area 100 due to an accuracy error, and meanwhile, the width of the blocking groove 32 is preferably about 0.4mm, and of course, the specific size can be adjusted according to the actual situation.

At least one of the upper substrate 1 and the lower substrate 2 is a glass substrate, a plastic substrate or a sapphire substrate.

Example two

As an optimized solution of the first embodiment, as shown in fig. 1 and 2, the display module in this embodiment includes an upper substrate 1 and a lower substrate 2 that are oppositely disposed, an upper polarizer 3 is disposed on an upper surface of the upper substrate 1, an adhesive layer 31 that is bonded to the upper substrate 1 is disposed on a lower surface of the upper polarizer 3, at least one grounding PAD is disposed on an upper surface of the lower substrate 2, and the upper substrate 1, the upper polarizer 3, and each grounding PAD are overlapped with each other through silver paste 4; a blocking groove 32 is formed between the visible area 100 of the upper polarizer 3 and each silver paste 4.

Compared with the first embodiment, the silver paste 4 of the first embodiment includes at least one overlapping portion 41, at least one climbing portion 42 and at least one extending portion 43, which are sequentially connected, each overlapping portion 41 overlaps with each grounding PAD in a one-to-one manner, each climbing portion 42 follows the side of the upper substrate 1 climbs to the upper surface of the upper substrate 1 from the corresponding grounding PAD, and each extending portion 43 follows the edge of the upper surface of the upper substrate 1 extends and contacts with the edge of the upper polarizer 3.

This embodiment not only passes through when some silver thick liquid 4 overlap joint portion 41 and climbing portion 42 make silver thick liquid 4 is followed each ground connection PAD climbing of infrabasal plate 2 extremely the upper surface of epitheca 1 with the edge of going up the polaroid 3 contacts, passes through moreover extension 43 has enlarged silver thick liquid 4 with area of contact between epitheca 1 and the last polaroid 3, makes silver thick liquid 4's stability is higher, and the impedance is littleer, and the electrostatic discharge ability is better.

A line connecting the bridging portion 41 and the climbing portion 42 is parallel to a first direction, a line connecting the climbing portion 42 and the extending portion 43 is parallel to a second direction, and the first direction is perpendicular to the second direction.

The length of the lap joint part 41 along the first direction is about 2.5mm, and the length along the second direction is about 2.5mm; the length of the climbing part 42 along the second direction is about 2.5mm, and the length of the part climbing to the upper surface of the upper substrate 1 along the first direction is about 0.5mm; the extension 43 has a length in the first direction of about 0.5mm and a length in the second direction of about 3.5mm.

Meanwhile, a lower polarizer 9 is disposed on the lower surface of the lower substrate 2.

A circuit board is arranged on one side edge of the lower substrate 2, each grounding PAD is lapped to the circuit board through corresponding routing, and the circuit board is lapped to a main board or a metal casing of a terminal such as a mobile phone and the like so as to realize grounding; the wiring board is preferably a flexible board.

A visible area 100 is formed between the upper substrate 1 and the lower substrate 2 in a surrounding mode through a sealant 5, and a liquid crystal material 6 is filled between the upper substrate 1 and the lower substrate 2 in the visible area 100.

EXAMPLE III

As an optimized scheme of the second embodiment, the display module in this embodiment includes an upper substrate 1 and a lower substrate 2 that are oppositely disposed, an upper polarizer 3 is disposed on an upper surface of the upper substrate 1, an adhesive layer 31 that is bonded to the upper substrate 1 is disposed on a lower surface of the upper polarizer 3, at least one grounding PAD is disposed on an upper surface of the lower substrate 2, and the upper substrate 1 and the upper polarizer 3 are in lap joint with each grounding PAD through silver paste 4; a blocking groove 32 is formed between the visible area 100 of the upper polarizer 3 and each silver paste 4.

Compared with the second embodiment, as shown in fig. 3, in the present embodiment, a conductive shielding film 7 is further disposed on the upper surface of the upper polarizer 3, or the upper polarizer 3 has conductive performance to also serve as the conductive shielding film 7.

In this embodiment, the conductive shielding film 7 is disposed on the upper polarizer 3, or the upper polarizer 3 with conductive performance is adopted, so as to form an electromagnetic shield, and shield the display module from external electromagnetic signals, thereby preventing the external electromagnetic signals from interfering with the display module.

If the conductive shielding film 7 is added, the silver paste 4 should also contact with the edge of the conductive shielding film 7, and the conductive shielding film 7 should be grooved in the area corresponding to the blocking groove 32.

The conductive shielding film 7 may be, but is not limited to, an ITO film, and conductive particles are mixed in the upper polarizer 3 having a conductive property.

Example four

As an optimized scheme of the second embodiment or the third embodiment, the display module in this embodiment includes an upper substrate 1 and a lower substrate 2 that are oppositely disposed, an upper polarizer 3 is disposed on an upper surface of the upper substrate 1, an adhesive layer 31 that is bonded to the upper substrate 1 is disposed on a lower surface of the upper polarizer 3, at least one grounding PAD is disposed on an upper surface of the lower substrate 2, and the upper substrate 1 and the upper polarizer 3 are overlapped with each grounding PAD through silver paste 4; a blocking groove 32 is formed between the visible area 100 of the upper polarizer 3 and each silver paste 4.

Compared with the second or third embodiment, as shown in fig. 4, in this embodiment, in order to prevent the silver paste 4 from entering the gap between the upper substrate 1 and the lower substrate 2 and further corroding the sealant 5 or the circuit 21 on the peripheral region of the lower substrate 2, at least one blocking strip 8 is disposed in the gap between the upper substrate 1 and the lower substrate 2, and each blocking strip 8 is located between the sealant 5 and the overlapping portion 41 corresponding to each silver paste 4.

Each stop 8 is optimally located at the edge of the upper base plate 1.

Preferably, the bars 8 extend along the edge of the upper substrate to form an integral structure, and the extending portions 43 of the silver pastes 4 also extend along the edge of the upper substrate to form an integral structure.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A display module for blocking silver paste from permeating into a visual area comprises an upper substrate and a lower substrate which are oppositely arranged, wherein an upper polaroid is arranged on the upper surface of the upper substrate, an adhesive layer which is bonded with the upper substrate is arranged on the lower surface of the upper polaroid, at least one grounding PAD is arranged on the upper surface of the lower substrate, and the upper substrate, the upper polaroid and each grounding PAD are in lap joint through silver paste; the polaroid is characterized in that a blocking groove is formed between the visible area of the upper polaroid and the silver paste at each position.

2. The display module of claim 1, wherein the number of the barrier grooves is at least one, one group of barrier grooves corresponds to one silver paste, and each group of barrier grooves comprises at least one barrier groove.

3. The display module of claim 2, wherein each of the barrier grooves extends along an edge shape of the visible region, and each of the barrier grooves is arranged along the edge shape of the visible region.

4. The display module of claim 1, wherein the distance between the barrier groove and the visible area is not less than 0.5mm.

5. The display module of claim 1, wherein the width of the barrier groove is about 0.4 mm.

6. The display module of claim 1, wherein the silver paste includes at least one lap joint portion, at least one climbing portion and at least one extension portion, the lap joint portions are in one-to-one correspondence with the grounding PADs, the climbing portions climb along the side surface of the upper substrate from the corresponding grounding PADs to the upper surface of the upper substrate, and the extension portions extend along the edge of the upper surface of the upper substrate and contact the edge of the upper polarizer.

7. The display module of claim 6, wherein a line connecting the bridging portion and the climbing portion is parallel to a first direction, a line connecting the climbing portion and the extending portion is parallel to a second direction, and the first direction is perpendicular to the second direction; the length of the lap joint part along the first direction is 2.5mm, and the length of the lap joint part along the second direction is 2.5mm; the length of the climbing part along the second direction is 2.5mm, and the length of the part climbing to the upper surface of the upper substrate along the first direction is 0.5mm; the extension has a length of 0.5mm in the first direction and a length of 3.5mm in the second direction.

8. The display module of claim 6, wherein a lower polarizer is disposed on the lower surface of the lower substrate.

9. The display module of claim 6, wherein a conductive shielding film is further disposed on the upper surface of the upper polarizer, or the upper polarizer has conductive properties to serve as the conductive shielding film.

10. The display module of claim 6, wherein the upper substrate and the lower substrate are surrounded by a sealant to form a visible area, at least one barrier strip is disposed in a gap between the upper substrate and the lower substrate, and each barrier strip is located between the sealant and each silver paste.

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