CN218601641U

CN218601641U - Anti-falling display module without silicone adhesive

Info

Publication number: CN218601641U
Application number: CN202223096363.9U
Authority: CN
Inventors: 林荣利; 郭城; 李刚; 裴云飞
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-10
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a no anti display module assembly that falls of silicone adhesive, which comprises an cover plate, the apron inboard sets up the optical cement, the optical cement inboard sets up the polaroid, it sets up piece glass to go up the polaroid inboard, piece glass inboard sets up down piece glass, integrated circuit and main screen flexible line way board respectively to go up piece glass, it sets up to the circuit layer to go up piece glass, piece glass sets up to the colour layer down, optical cement, last polaroid and last piece glass length, width and area are unanimous. The method has the advantages that the impact force of the upper glass circuit layer caused by falling and oscillation can be well absorbed, silicone adhesive does not need to be dispensed in the single-layer area of the upper glass circuit layer, the cost of the silicone adhesive is saved, the process is reduced, and the purpose of avoiding the failure of the ink dyne value of the bottom layer of the cover plate caused by the silicone adhesive is achieved.

Description

Anti-falling display module without silicone adhesive

Technical Field

The utility model relates to a communication technology and display module assembly technical field particularly, relate to a non-silicone adhesive anti-falling display module assembly.

Background

At present, in order to improve the reliability of a single-layer display glass area of a display module of a mobile phone, a silicone adhesive is usually dispensed on the single-layer display glass area to play a role in cushioning a gasket. However, the silicone adhesive continuously releases volatile low-molecular siloxane (D4-D20) to adhere to the ink area at the bottom of the cover plate to form a surface covering layer, so that the surface energy of the ink is greatly reduced. Silicone adhesives are high molecular weight compounds, which inevitably contain volatile low molecular weight molecules during the production process. When the dispensing and assembling machine is used for dispensing and assembling the whole mobile phone, dispensing and gluing are not firm or gaps exist in the affected ink area, so that the cover plate falls off or water vapor, dust and sweat enter from the gaps in the later period, and the use of the mobile phone is affected. Moreover, the longer the time interval from the production completion of the mobile phone display module to the installation of a mobile phone terminal client is, the more low-molecular siloxane (D4-D20) released by the silicone adhesive is, the greater the influence on the surface energy of the ink at the bottom of the cover plate is. Generally, the low molecular siloxane (D4-D20) released by the silicone adhesive covers the peripheral area of the silicone adhesive.

In order to compromise the regional anti drop performance of breaking of cell-phone type display module individual layer and protection apron bottom printing ink simultaneously and reach the value of cause, the utility model provides a no anti display module who falls of silicone adhesive.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a do not have anti display module assembly that falls of silicone adhesive to how to realize the regional anti falling rupture performance of cell-phone type display module assembly individual layer and the problem of protection apron bottom printing ink dyne value simultaneously among the solution prior art.

In order to realize the above-mentioned purpose, according to the utility model discloses an aspect provides a no anti display module assembly that falls of silicone adhesive, which comprises an apron, the apron inboard sets up the optical cement, the optical cement inboard sets up the polaroid, it sets up piece glass to go up the polaroid inboard, it sets up down piece glass, integrated circuit and main screen flexible line way board respectively to go up piece glass inboard, it sets up to the circuit layer to go up piece glass, lower piece glass sets up to the colour layer, optical cement, last polaroid and last piece glass length, width and area are unanimous.

Preferably, the lower polarizer is arranged on the inner side of the lower glass sheet.

Preferably, a first backlight assembly is disposed inside the integrated circuit.

Preferably, a second backlight assembly is disposed inside the first backlight assembly.

Preferably, a third backlight assembly is disposed inside the second backlight assembly.

Preferably, the optical cement is an OCA optical cement. OCA optical cement is used for gluing transparent optical element's special bonding glue, it is colorless transparent to have, the light transmissivity is more than 95%, the light transmissivity is good, be favorable to improving the definition that shows, and have better cementation intensity, can solidify under room temperature or middle temperature, need not to adopt solitary solidification process, and OCA optical cement solidification shrink is little, can not lead to other components and parts to appear deformation and displacement because of the solidification shrink, and then lead to influencing the display effect, consequently OCA optical cement reliability is higher. The light-transmitting film has high clarity, high light transmission, high adhesion, high weather resistance, water resistance and high temperature resistance, can not be yellowed after long-term use, can not be peeled off after long-term use, can not be deteriorated after long-term use, can reduce dazzling light, reduces the loss of emitted light, increases brightness, provides high transmissivity and reduces energy consumption. The utility model discloses a OCA optical cement one side and apron adhesion, another side and last polaroid adhesion, wherein OCA optical cement size and area keep unanimous with last polaroid size and area, have guaranteed apron and last polaroid large tracts of land adhesion, have guaranteed the reliability of adhesion, need not to reuse extra glue and carry out the secondary adhesion. The silicone adhesive is not required to be used for adhesion, so that the silicone adhesive is prevented from continuously releasing volatile low-molecular siloxane (D4-D20) to be attached to an ink area at the bottom of the cover plate to form a surface covering layer, and the surface energy of the ink is greatly reduced. The problem that the use of the mobile phone is influenced due to the fact that the cover plate falls off or water vapor, dust and sweat enter from the gap at the later stage due to the fact that glue dispensing viscose is not firm or the gap exists in the affected ink area when the mobile phone complete machine glue dispensing machine is dispensed with high-molecular compound silicone glue is avoided.

Preferably, the color layer is CF.

Preferably, the circuit layer is a TFT.

Preferably, the optical rubber plate and the upper polarizer are clamped between the cover plate and the upper glass. The size and the area of the existing structural glazing glass, OCA optical cement and the upper polaroid are small, the end part of the glazing glass is far away from a main screen FPC (flexible printed circuit), and adhesion, support and buffering are realized by adopting silicone adhesive on the same plane, one side of the end part of the glazing glass is connected with the main screen FPC, the size and the area of the OCA optical cement and the upper polaroid are consistent, the glazing glass is buffered by adopting the OCA optical cement and the upper polaroid, the anti-falling effect is realized, and silicone adhesive is not needed to be adopted to further adhere and buffer, so that the silicone adhesive is prevented from continuously releasing volatile low molecular siloxane (D4-D20) and is attached to an ink area at the bottom of the cover plate, a surface covering layer is formed, and the surface energy of the ink is greatly reduced. The problem that the use of the mobile phone is influenced due to the fact that the cover plate falls off or water vapor, dust and sweat enter from gaps in the later stage because glue dispensing and gluing are not firm in an affected ink area or gaps exist when the high-molecular compound silicone adhesive has volatile low molecules in the production process and the mobile phone is wholly dispensed and mounted is solved.

Preferably, the optical rubber plate and the upper polarizer absorb impact stress to buffer the upper glass. The impact force is absorbed through the optical adhesive plate and the upper polarizer, and the silicone adhesive is not needed to be used for buffering, so that the silicone adhesive is prevented from continuously releasing volatile low-molecular siloxane (D4-D20) and attaching to the ink area at the bottom of the cover plate to form a surface covering layer, and the surface energy of the ink is greatly reduced. The problem that the use of the mobile phone is influenced due to the fact that the cover plate falls off or water vapor, dust and sweat enter from the gap at the later stage due to the fact that glue dispensing viscose is not firm or the gap exists in the affected ink area when the mobile phone complete machine glue dispensing machine is dispensed with high-molecular compound silicone glue is avoided.

Use the technical scheme of the utility model, with last glass as the circuit layer, lower glass is as the colour layer to accomplish size and area unanimous with OCA optical cement, last polaroid appearance and last glass (circuit layer). The I C integrated circuit and the main screen FPC are bound on a single-layer area of the upper glass (circuit layer). Because the shape of the OCA optical cement and the upper polaroid is the same as the area of the single-layer area of the upper glass (circuit layer), the upper glass (circuit layer) is provided with a substrate and is not a single-layer area. OCA optical cement and polaroid are soft glues, and the OCA optical cement and polaroid can well absorb impact force of upper glass (circuit layer) caused by falling and vibrating, silicone cement does not need to be dispensed in the single-layer area of the upper glass (circuit layer), the cost of the silicone cement is saved, a silicone cement dispensing process is reduced, and the technical effect of avoiding failure of printing ink of the bottom layer of the cover plate due to the silicone cement is achieved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of the prior art according to the present invention;

FIG. 2 is a schematic structural diagram of a silicone-adhesive-free drop-resistant display module;

fig. 3 shows a partial enlarged view of a non-silicone adhesive drop resistant display module.

Wherein the figures include the following reference numerals:

a cover plate 1; a rubber plate 2; an upper polarizer 3; putting the glass sheet 4; a lower sheet of glass 5; an integrated circuit 6; a main screen FPC flexible circuit board 7; a lower polarizer 8; a first backlight assembly 9; a second backlight assembly 10; a third backlight assembly 11; a light guide plate 12; a light source 13; black and black frame glue 14; a silicone adhesive 15.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1 to 3, the embodiment of the utility model provides a no anti display module assembly that falls of silicone adhesive, including

apron

1, 1 inboard of apron sets up

optical cement

2, 2 inboard settings polaroids 3 of optical cement, it sets up piece glass 4 to go up 3 inboards of polaroid, 4 inboards of piece glass set up down piece glass 5, integrated circuit 6 and main screen FPC flexible line way board 7 respectively, it sets up to the circuit layer to go up piece glass 4, piece glass 5 sets up to the colour layer down, optical cement 2, last polaroid 3 and last piece glass 4 length, width and area are unanimous.

In this embodiment, the cover plate 1 is included to protect the upper polarizer 3, the upper glass 4, the lower glass 5, the integrated circuit 6, the lower polarizer 8, and the backlight module (the first backlight assembly 9, the second backlight assembly 10, and the third backlight assembly 11), so as to prevent the upper polarizer 3, the upper glass 4, the lower glass 5, the integrated circuit 6, the lower polarizer 8, the first backlight assembly 9, the second backlight assembly 10, and the third backlight assembly 11 from being impacted by external force, and to seal the upper polarizer 3, the upper glass 4, the lower glass 5, the integrated circuit 6, the lower polarizer 8, the first backlight assembly 9, the second backlight assembly 10, and the third backlight assembly 11 from being affected by external force, and to prevent moisture. The cover plate 1 is made of hard material.

Example 2

As further optimization of embodiment 1, in this embodiment, the optical adhesive 2 is disposed on the inner side of the cover plate 1, the optical adhesive 2 is the OCA optical adhesive 2, the OCA optical adhesive 2 is a special adhesive for adhering the transparent optical element, and the special adhesive has colorless transparency, a light transmittance of more than 95%, good light transmittance, and is beneficial to improving the display definition, and has good adhesion strength, and can be cured at room temperature or medium temperature, and an independent curing process is not required, and the curing shrinkage of the OCA optical adhesive 2 is reduced, and completely using the OCA optical adhesive 2 does not cause deformation and displacement of other components due to curing shrinkage, and further causes influence on the display effect, so the reliability of the OCA optical adhesive 2 is high. The light-transmitting film has high clarity, high light transmission, high adhesion, high weather resistance, water resistance and high temperature resistance, can not be yellowed after long-term use, can not be peeled off after long-term use, can not be deteriorated after long-term use, can reduce dazzling light, reduces the loss of emitted light, increases brightness, provides high transmissivity and reduces energy consumption. The utility model discloses a 2 one sides of OCA optical cement and 1 adhesion of apron, another side and 3 adhesions of last polaroid, wherein OCA optical cement 2's size and area keep unanimous with 3 sizes of last polaroid and area, have guaranteed

apron

1 and 3 large tracts of land adhesions of last polaroid, have guaranteed the reliability of adhesion, need not to reuse extra glue and carry out the secondary adhesion. The silicone adhesive is not required to be used for adhesion, so that the silicone adhesive is prevented from continuously releasing volatile low-molecular siloxane (D4-D20) and attaching to the ink area at the bottom of the cover plate 1 to form a surface covering layer, and the surface energy of the ink is greatly reduced. The problem that the use of the mobile phone is influenced because the glue is not firmly glued or gaps exist in the affected ink area when the high-molecular compound silicone adhesive has volatile low molecules in the production process, so that the cover plate 1 falls off or water vapor, dust and sweat enter from the gaps in the later period is solved.

In this embodiment, 2 inboard polaroids 3 that set up of optical cement, 3 one sides of going up polaroid and 2 adhesions of optical cement, another side and last glass 4 (circuit layer) adhesion, and 3 size areas of last polaroid keep unanimous with last glass 4 (circuit layer), for current structure, it has all increased all to go up 3 sizes and the area of polaroid, the last 3 sizes and the area of polaroid of current structure are close the colour layer size, 2 areas and the size of optical cement also are close the colour layer size, still need extra use silicone adhesive to keep the support of the 5 other ends of lower glass, this patent is accomplished to be unanimous with last glass 4 (circuit layer) with 3 sizes and the area of last polaroid, 2 size areas of optical cement are unanimous with last polaroid 3 simultaneously, the realization need not to use silicone adhesive again to support like this, buffering and adhesion.

In this embodiment, go up 3 inboards of polaroid and set up piece glass 4, current piece glass 4 of going up is the colour layer, and the colour layer is CF, the utility model discloses piece glass 4 of going up is the circuit layer, and the circuit layer is TFT, sets up OCA optical cement 2 and last polaroid 3 between piece glass 4 of going up and the apron 1, and optical cement 2 and last polaroid 3 are soft material, can absorb impact stress buffering piece glass 4 of going up well. The size and the area of the existing structural upper glass 4 (color layer), the size and the area of the OCA optical cement 2 and the size and the area of the upper polaroid 3 are smaller, the end part of the upper glass 4 (circuit layer) is far away from the main screen FPC flexible circuit board 7, and the adhesion, the support and the buffering are realized by adopting the silicone cement on the same plane, one side of the end part of the upper glass 4 (circuit layer) is connected with the main screen FPC flexible circuit board 7, the size and the area of the OCA optical cement 2 and the size and the area of the upper polaroid 3 are consistent, the adhesion, the support and the buffering of the upper glass 4 are realized by the OCA optical cement 2 and the upper polaroid 3, the anti-falling effect is realized, the adhesion, the support and the buffering are realized without adopting the silicone cement, the continuous and uninterrupted release of the volatile low molecular siloxane (D4-D20) by the silicone cement are avoided, the anti-falling low molecular siloxane is attached to the bottom ink area of the cover plate 1, a surface covering layer is formed, and the surface energy of the ink is greatly reduced. The problem that the use of the mobile phone is influenced due to the fact that the glue dispensing viscose is not firm or gaps exist in the glue dispensing machine of the whole mobile phone when the glue dispensing machine is used for dispensing the whole mobile phone is avoided, and the cover plate 1 falls off or water vapor, dust and sweat enter the glue dispensing machine from the gaps in the later period is caused.

Example 3

As a further optimization of the embodiment 2, in this embodiment, the lower glass 5 (color layer), the integrated circuit 6 and the main screen FPC flexible circuit board 7 are respectively disposed on the inner side of the upper glass 4 (circuit layer), and the lower polarizer 8 is disposed on the inner side of the lower glass 5 (color layer). The first backlight assembly 9 is disposed inside the integrated circuit 6. The second backlight assembly 10 is disposed inside the first backlight assembly 9. The first backlight assembly 9 is made of transparent PET, and is attached to the black frame sealant 14 to fill a gap between the black frame sealant 14 and the lower polarizer 8. The second backlight assembly 10 is internally provided with a third backlight assembly 11, the backlight module comprises a backlight frame (the third backlight assembly 11), a light guide plate 12 arranged in the backlight frame (the third backlight assembly 11), a light source 13 arranged in the backlight frame and positioned at the light inlet side of the light guide plate 12, and a light source 13 integrated on a backlight flexible circuit board (the second backlight assembly 10), an optical film (the optical film is used for brightening and/or diffusion) arranged at the light outlet side (facing to one side of the polaroid) of the light guide plate 12, and black frame glue 14, wherein the black frame glue 14 is attached to the inner side of the backlight frame so as to avoid light leakage around the backlight module. The upper glass 4 is set as a circuit layer, the lower glass 5 is set as a color layer, and the length, the width and the area of the optical cement 2, the upper polaroid 3 and the upper glass 4 are consistent. An existing display module is shown in fig. 1, an upper piece of glass 4 (a color layer) faces a cover plate 1, a lower piece of glass 5 (a circuit layer) is far away from the cover plate 1, an OCA optical cement 2 and an upper polaroid 3 are more retracted than the upper piece of glass 4 (the color layer), I C integrated circuits 6 are bound in a single-layer area of the lower piece of glass 5 (the circuit layer), a main screen FPC flexible circuit board 7 is bound, then a silicone adhesive is dispensed to play a role in filling and buffering, the single-layer area of the lower piece of glass 5 (the circuit layer) is protected, and the single-layer area is prevented from being subjected to stress fracture when falling and vibrating to cause function failure. The utility model discloses the structure is as shown in fig. 2, and it is designed into the circuit layer with last piece of glass 4, and lower piece of glass 5 designs for the colour layer to accomplish OCA optical cement 2, the 3 appearances of last polaroid unanimously with last piece of glass 4 (circuit layer). I C integrated circuit 6 and main screen FPC flexible wiring board 7 are bound to a single-layer region of upper glass 4 (circuit layer). Because the shape of the OCA optical cement and the upper polarizer 3 is the same as the area of the single-layer area of the upper glass 4 (circuit layer), the upper glass 4 (circuit layer) is provided with a substrate and is not a single-layer area. The OCA optical cement and the polaroid are soft glues and can well absorb impact stress, so that the impact force of the upper glass 4 (circuit layer) caused by falling and vibration can be well absorbed, and silicone cement does not need to be dispensed in the single-layer area of the upper glass 4 (circuit layer). Therefore, the cost of the silicone adhesive is saved, a point silicone adhesive process is also reduced, and the problem that the dyne value of the printing ink on the bottom layer of the cover plate 1 is invalid due to the silicone adhesive is also avoided. Wherein the color layer is also the CF and the circuit layer is also the TFT.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the upper glass 4 is used as a circuit layer, the lower glass 5 is used as a color layer, and the OCA optical cement 2 and the upper polaroid 3 are made to be consistent in size and area with the upper glass 4. I C integrated circuit 6 and main screen FPC flexible circuit board 7 are bound on the single-layer area of upper glass 4. Because the shape of the OCA optical cement 2 and the upper polarizer 3 is the same as the area of the single-layer area of the upper glass 4, the upper glass 4 has a substrate and is not a single-layer area. The OCA optical cement 2 and the polaroid are soft glues, so that impact stress can be well absorbed, the impact force of the upper glass 4 caused by falling and vibration can be well absorbed, and silicone adhesive does not need to be dispensed in the single-layer area of the upper glass 4. The cost of the silicone adhesive is saved, a point silicone adhesive process is also reduced, and the problem that the dyne value of the printing ink on the bottom layer of the cover plate 1 is invalid due to the silicone adhesive is solved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a no anti display module assembly that falls of silicone adhesive, a serial communication port, which comprises a cover plate, the apron inboard sets up the optical cement, the optical cement inboard sets up the polaroid, it sets up piece glass to go up the polaroid inboard, it sets up down piece glass, integrated circuit and main screen flexible line way board respectively to go up piece glass inboard, it sets up to the circuit layer to go up piece glass, piece glass sets up to the colour layer down, optical cement, last polaroid and last piece glass length, width and area are unanimous mutually.

2. The silicone-adhesive-free drop-resistant display module of claim 1, wherein the lower glass sheet is provided with a lower polarizer on the inner side.

3. The silicone-adhesive-free drop-resistant display module of claim 1, wherein a first backlight assembly is disposed inside the integrated circuit.

4. The silicone-adhesive-free drop-resistant display module of claim 3, wherein a second backlight assembly is disposed inside the first backlight assembly.

5. The silicone-adhesive-free drop-resistant display module of claim 4, wherein a third backlight assembly is disposed inside the second backlight assembly.

6. The silicone-adhesive-free drop-resistant display module of claim 1, wherein the optical adhesive is an OCA optical adhesive.

7. The silicone-free drop-resistant display module of claim 1, wherein the color layer is CF.

8. The silicone adhesive-free drop-resistant display module of claim 1, wherein the circuit layer is a TFT.

9. The silicone-free drop-resistant display module of claim 1, wherein the optical film and the upper polarizer are sandwiched between the cover plate and the top glass.

10. The silicone-free drop-resistant display module of claim 1, wherein the optical film and the upper polarizer absorb impact stress and buffer the upper glass.