CN110164297B

CN110164297B - Display screen module and manufacturing method thereof, polaroid and electronic equipment

Info

Publication number: CN110164297B
Application number: CN201910374528.8A
Authority: CN
Inventors: 王进
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2021-05-04
Anticipated expiration: 2039-05-05
Also published as: CN110164297A

Abstract

The application provides a manufacturing method of a display screen module, which comprises the following steps: providing a display panel and a backlight component, wherein the display panel comprises a polaroid, the polaroid is provided with a hollow hole and a carbonization part formed at the periphery of the hollow hole, the hollow hole is used for partially accommodating the camera module so that the camera module can collect external light, the carbonization part is used for shielding the light, and the backlight component is provided with a through hole; attaching the backlight piece to the polaroid, wherein the orthographic projection of the through hole on the polaroid is positioned in the area where the hollow hole is positioned; and forming a light shielding adhesive layer covering the part of the backlight piece corresponding to the hollow hole. The manufacturing method only needs one-time dispensing process, avoids forming the light shielding layer by multiple times of dispensing on the polarizer and the backlight component (the light shielding layer is irregular in shape and poor in size precision due to the fact that multiple times of dispensing errors are accumulated), is beneficial to improving the yield of products, and effectively reduces the cost.

Description

Display screen module and manufacturing method thereof, polaroid and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a display screen module, a manufacturing method of the display screen module, a polaroid and electronic equipment.

Background

At present, for the screen of increasing the display screen account for than, directly add the trompil in the display area of display screen usually to install camera module in the trompil, nevertheless the light in the display screen reveals in the inside wall department of trompil easily, influences the shooting quality of camera module.

Disclosure of Invention

The embodiment of the application provides a manufacturing method of a display screen module, which comprises the following steps:

providing a display panel and a backlight component, wherein the display panel comprises a polaroid, the polaroid is provided with a hollow hole and a carbonization part formed at the periphery of the hollow hole, the hollow hole is used for partially accommodating a camera module so as to allow the camera module to collect external light, the carbonization part is used for shielding light, and the backlight component is provided with a through hole;

attaching the backlight piece to the polaroid, wherein the orthographic projection of the through hole on the polaroid is positioned in the area where the hollow hole is positioned;

and forming a shading glue layer covering the part of the backlight piece corresponding to the hollow hole.

The embodiment of the application provides a polaroid, the polaroid is equipped with the fretwork hole, and is formed in the peripheral carbonization portion of fretwork hole, the fretwork hole is used for the part to accept the camera module to supply the camera module to gather external light, the carbonization portion is used for shielding light.

The embodiment of the application provides a display screen module, display screen module include display panel and with the backlight layer that display panel range upon range of setting, display panel has the non-display area, display panel includes as above the polaroid, polaroid fixed connection and laminating the backlight layer, carbonization portion with the fretwork hole all set up in the non-display area.

The embodiment of the application provides an electronic device, the electronic device comprises the display screen module.

The display screen module and the manufacturing method thereof, the polarizer and the electronic device provided by the embodiment of the application are characterized in that the display panel is provided with the polarizer, the polarizer is provided with the hollow hole and the carbonization part formed at the periphery of the hollow hole, the carbonization part can prevent light from leaking from the inner side wall of the hollow hole, the backlight is attached to the polarizer, the orthographic projection of the through hole on the polarizer is positioned in the area where the hollow hole is positioned, so that the part of the backlight, which is adjacent to the through hole, forms a section difference with the polarizer, the part of the polarizer, which is except the hollow hole, can receive the light of the backlight, the light shading glue layer which covers the part of the backlight, which corresponds to the hollow hole, can shade the part of the backlight, which corresponds to the hollow hole, from emitting the light, so that the carbonization part and the light shading glue layer can jointly prevent the light from the polarizer and the backlight from entering the hollow hole, and, the formation of the light shielding layer by multiple times of glue dispensing on the polarizer and the backlight component is avoided (the accumulation of multiple times of glue dispensing errors easily causes the irregular shape and poor dimensional precision of the light shielding layer), the improvement of the yield of products is facilitated, and the cost is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first schematic flow chart illustrating a manufacturing method of a display screen module according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of the display panel provided in FIG. 1;

FIG. 3 is a schematic structural view of the backlight provided in FIG. 1;

fig. 4 is a schematic flow chart diagram illustrating a second method for manufacturing a display screen module according to an embodiment of the present disclosure;

fig. 5 is a third schematic flow chart illustrating a manufacturing method of a display screen module according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of the structure of the polarizer to be processed provided in FIG. 4;

FIG. 7 is a first schematic diagram of a process of processing a polarizer to be processed;

FIG. 8 is a schematic diagram of a second process of processing a polarizer to be processed;

FIG. 9 is a first schematic diagram of an assembly of the display panel and the backlight provided in FIG. 1;

FIG. 10 is a second schematic assembly diagram of the display panel and backlight provided in FIG. 1;

fig. 11 is a first schematic structural diagram of a display screen module according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 13 is a first schematic view of the polarizer of FIG. 11;

FIG. 14 is a second schematic structural view of the polarizer of FIG. 11;

fig. 15 is a schematic structural diagram of a display screen module according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a display screen module according to an embodiment of the present application;

FIG. 17 is an enlarged view A of FIG. 16;

fig. 18 is an enlarged schematic view a of fig. 16.

Detailed Description

Referring to fig. 1, an embodiment of the present application provides a method for manufacturing a display screen module 20, where the method for manufacturing the display screen module 20 includes steps 101 to 103:

101: referring to fig. 2 and 3, a display panel 21 and a backlight 24 are provided, where the display panel 21 includes a polarizer 212, the polarizer 212 has a hollow hole 31, and a carbonized part 32 formed at a periphery of the hollow hole 31, the hollow hole 31 is used to partially accommodate the camera module 41 for the camera module 41 to collect external light, the carbonized part 32 is used to shield light, and the backlight 24 has a through hole 221.

The polarizer 212 may be opposite to the backlight 24 in the subsequent steps, and the polarizer 212 may transmit the light emitted from the backlight 24 and convert the light of the backlight 24 into polarized light. The hollow hole 31 may provide a partial accommodating space for the camera module 41. The display panel 21 further includes an upper polarizer 213, a color filter 214, a liquid crystal layer 215, and a thin film transistor layer 216, which are stacked in sequence. The polarizer 212 is laminated on the side of the thin film transistor layer 216 away from the liquid crystal layer 215. The carbonized part 32 is a non-light-transmitting part on the polarizer 212. The carbonization part 32 is annular, the hollow hole 31 is located the inboard of carbonization part 32, then the carbonization part 32 can block the process the light of polaroid 212 is followed the inside wall department of hollow hole 31 reveals to need not to form the cover through the point glue technology the shading glue film 23 of hollow hole 31 inside wall can simplify process flow, reduces the technology degree of difficulty, is favorable to reduce cost.

Referring to fig. 4, the step of providing the display panel 21 includes steps 1011 to 1012:

1011: referring to fig. 6, a polarizer 50 to be processed is provided, wherein the polarizer 50 to be processed has a portion 51 to be processed.

In step 1011, the polarizer 50 to be processed is in a sheet shape. The portion to be processed 51 is used for processing and forming the carbonized part 32 and the hollow hole 31 in a subsequent processing process.

1012: referring to fig. 7, a laser beam is used to process a hollow hole 31 in the portion to be processed 51, and the portion of the portion to be processed 51 except for the hollow hole 31 is carbonized under the action of the laser to form the carbonized portion 32.

In step 1012, a laser machining apparatus is provided, which may provide a laser beam. The laser beam is projected on the part 51 to be processed of the polarizer 50 to be processed, and the high-energy laser beam can penetrate through the part 51 to be processed, so that the part 51 to be processed is subjected to laser cutting. The portion of the to-be-processed portion 51 other than the hollow hole 31 absorbs the energy of the laser beam and is carbonized to form the carbonized portion 32. It can be seen that the hollow hole 31 and the carbonized part 32 can be simultaneously obtained by processing the part to be processed 51 by the laser beam, the processing efficiency is high, and the processing time and cost can be reduced.

In step 1012, the laser beam processes the portion to be processed 51 according to a preset circular path to obtain the hollow hole 31. The shape of the annular feed track is the same as that of the hollow hole 31, for example, if the hollow hole 31 is a circular hole, the annular feed track is circular, and of course, the annular feed track may be in other shapes, and may be set according to actual needs.

Referring to fig. 5, step 1012 includes steps 1013 to 1014:

1013: providing a laser beam, wherein the laser beam has a preset diameter;

in step 1013, the preset diameter of the laser beam may be smaller than the diameter value of the via hole 31, and the preset diameter of the laser beam may be one n times the diameter value of the via hole 31, where n > 1, and the value of n may be set by itself. The preset diameter value of the laser beam can be reduced by adopting a larger n value, so that the influence of the laser beam on the part of the to-be-processed piece except the to-be-processed part 51 is reduced, the power of the laser beam is reduced, and the energy is saved.

1014: referring to fig. 7, the laser beam processes the portion to be processed 51 according to a preset annular feeding track to obtain the hollow hole 31.

In the conventional technology, the light-shielding adhesive layer 23 is formed on the inner sidewall of the opening 35 of the polarizer 212 by a dispensing process, but the shape and size of the light-shielding adhesive layer 23 are difficult to control, which may result in finally forming a special-shaped hole on the polarizer 212, resulting in low product yield. In the present embodiment, the shape and size of the carbonization unit 32 are related to the feed path and power of the laser beam, and the laser beam processes the to-be-processed unit 51 according to the preset annular feed path and adjusts the power of the laser beam, so that the finally formed carbonization unit 32 has a certain regular shape, thereby effectively improving the yield of products.

In step 1014, the laser beam may move cyclically along the preset circular feed path to cyclically cut the portion to be processed 51. The shape of the carbonization part 32 is the same as the cutting path of the laser beam, and is annular, the part of the part 51 to be processed except the hollow hole 31 is repeatedly burned by the laser beam, and as the number of times of the cyclic cutting of the laser beam increases, the carbonization degree of the carbonization part 32 finally formed is higher, which is beneficial to improving the shading effect of the carbonization part 32. The feed speed of the laser beam can be increased, so that the corresponding processing time period can be shortened.

Further, in step 1014, the laser beam may perform a first cutting on the portion to be processed 51 along the preset circular feeding track at a first power, where the first power may be a larger value, so as to ensure that the laser beam penetrates through the portion to be processed 51, so as to cut and form the hollow hole 31 on the portion to be processed 51; and in the subsequent processing process, the laser beam can circularly move along the preset annular feed track under the second power so as to circularly burn the part to be processed 51 except the hollow hole 31, and finally obtain the carbonization part 32. The second power is less than the first power, which can save the energy of the laser beam and reduce the processing cost, and the burning range of the polarizer 212 can be reduced by adopting the laser beam with low power, so as to reduce the size of the carbonization part 32, which is beneficial to ensuring the strength of the polarizer 212.

Referring to fig. 8, in step 1014, the laser beam forms an included angle with the normal direction of the polarizer 50 to be processed, so that after the laser beam cuts the portion 51 to be processed, the formed carbonized part 32 has an inclined sidewall 323, the inclined sidewall 323 is located at a position of the carbonized part 32 close to the hollow hole 31, the inclined sidewall 323 forms an included angle with the normal direction of the polarizer 212, so that the hollow hole 31 is funnel-shaped, and the large end of the hollow hole 31 is close to the upper polarizer 213 relative to the small end of the hollow hole 31. The inclined sidewall 323 may block the backlight from leaking to the opening 35 of the upper polarizer 213 in a direction inclined from the normal direction of the polarizer 212, thereby preventing the backlight from leaking in the area of the opening 35 of the display panel 21 when viewed by a user at a specific viewing angle.

102: referring to fig. 9, the backlight 24 is attached to the polarizer 212, and the orthographic projection of the through hole 221 on the polarizer 212 is located in the area where the hollow hole 31 is located.

In step 102, the backlight 24 is in the form of a sheet. The backlight 24 and the polarizer 212 are stacked. The through hole 221 and the hollow hole 31 form an installation space, and the installation space is used for partially accommodating the camera module 41. The central axis of the through hole 221 coincides with the central axis of the through hole 31, and the size of the through hole 221 is smaller than the size of the through hole 31, so that the orthographic projection of the through hole 221 on the polarizer 212 is located in the area where the through hole 31 is located, a step difference is formed between the part of the backlight 24 adjacent to the through hole 221 and the carbonization part 32, so as to ensure that the part of the polarizer 212 except the through hole 31 receives the light emitted by the backlight 24.

103: referring to fig. 10, a light-shielding adhesive layer 23 covering a portion of the backlight 24 corresponding to the hollow hole 31 is formed.

In step 102, a recess 34 is formed between the carbonizer 32 and the backlight 24. The through hole 221 has a light transmitting side 222. The recess 34 has a light-transmissive bottom surface 341 connected to the light-transmissive side surface 222. The light-transmitting bottom surface 341 and the light-transmitting side surface 222 are both located on the backlight 24.

Step 103 includes steps 1031 to 1032:

1031: and providing a dispensing device and shading glue.

1032: and filling the shading glue into the groove 34 by using a dispensing device, wherein the shading glue forms a shading glue layer 23 which is filled in the groove 34 and covers the carbonization part 32.

In step 1032, a portion of the light shielding glue is attached to the light-transmitting bottom surface 341, and a portion of the light shielding glue is attached to the light-transmitting side surface 222, so that the light shielding glue can block the light of the backlight 24 from exiting through the light-transmitting bottom surface 341 and the light-transmitting side surface 222. The carbonized part 32 and the light-shielding adhesive layer 23 can jointly block the light of the backlight piece 24 from entering the through hole 221 and the hollow hole 31, so that crosstalk interference caused by the backlight piece 24 to the camera module 41 is eliminated. The light-shielding glue is filled in the groove 34 and coats the carbonized part 32, so that the carbonized part 32 is reinforced, the carbonized part 32 is isolated from the outside, and particles of the carbonized part 32 are prevented from falling into the backlight 24 or other structures after being separated from the body.

In the method for manufacturing the display panel module 20 according to the present embodiment, the display panel 21 is provided with the polarizer 212, the polarizer 212 is provided with the hollow hole 31, and the carbonized part 32 is formed at the periphery of the hollow hole 31, wherein the carbonized part 32 can block the light leaking from the inner sidewall of the hollow hole 31, and the back light 24 is attached to the polarizer 212, and the orthographic projection of the through hole 221 on the polarizer 212 is located in the area where the hollow hole 31 is located, so that the portion of the back light 24 adjacent to the through hole 221 and the polarizer 212 form a step difference, which is beneficial for the portion of the polarizer except the hollow hole 31 to receive the light of the back light 24, and by forming the light-shielding adhesive layer 23 covering the portion of the back light 24 corresponding to the hollow hole 31, the light-shielding adhesive layer 23 can shield the portion of the back light 24 corresponding to the hollow hole 31 from emitting light, so that the carbonized part 32 and the light-shielding adhesive layer 23 can jointly block the light from the polarizer 212 and the back light 24 from entering, the manufacturing method only needs one-time dispensing process, avoids forming the light shielding layer by multiple dispensing on the polarizer 212 and the backlight 24 (the accumulation of multiple dispensing errors easily causes the light shielding layer to have irregular shape and poor dimensional precision), is favorable for improving the yield of products, and effectively reduces the cost.

Referring to fig. 11 and fig. 12, an electronic device 100 is further provided in an embodiment of the present application, where the electronic device 100 includes a housing 10 and a display screen module 20 fixedly connected to the housing 10. The housing 10 includes a bezel 11 and a back plate 12. The frame 11 is fixed on the periphery of the display screen module 20. The back plate 12 is fixed on one side, far away from the display screen module 20, of the frame 11, and the back plate 12 and the display screen module 20 are arranged oppositely. The back plate 12 may be integrally provided with the frame 11, or the back plate 12 may be detachably connected to the frame 11. The electronic device 100 includes a functional component 40 fixed inside the frame 11. The functional component 40 includes a camera module, an earphone, a speaker module, a circuit board, an antenna, or other functional devices. It is understood that the electronic device 100 may be a smart phone, a smart watch, a tablet computer, a laptop computer, a wearable smart device, or the like.

The display screen module 20 includes a light-transmitting cover plate 23, a display panel 21 and a backlight layer 22 which are stacked in sequence. The display panel 21 has a non-display area 211. The display panel 21 includes a polarizer 212, and the polarizer 212 is fixedly connected to and attached to the backlight layer 22. The polarizer 212 is provided with a hollow hole 31 and a carbonization portion 32 formed at the periphery of the hollow hole 31, the hollow hole 31 can partially accommodate the camera module 41 so that the camera module 41 can collect external light, and the carbonization portion 32 is used for shielding the light. The carbonized part 32 and the hollow hole 31 are disposed in the non-display region 211.

In this embodiment, the display panel 21 further includes an upper polarizer 213, a color filter 214, a liquid crystal layer 215, and a thin film transistor layer 216, which are stacked in sequence. The upper polarizer 213, the color filter 214, the liquid crystal layer 215, and the thin-film transistor layer 216 are all located on a side of the polarizer 212 facing away from the backlight layer 22. The backlight layer 22 is used to provide backlight for the display panel 21. The polarizer 212 may transmit light emitted from the backlight and convert the light into polarized light. The arrangement direction of the liquid crystal molecules in the liquid crystal layer 215 can be changed by applying an electric field to the liquid crystal layer 215, so that the twisting action of the liquid crystal layer 215 on the polarized light is controlled, and further, the upper polarizer 213 is matched with the liquid crystal layer 215, so that the polarized light modulated by the liquid crystal layer 215 can be analyzed and polarized, and the display panel 21 generates a picture with light and shade change.

An opening 35 is formed in the upper polarizer 213 corresponding to the hollow hole 31, and the opening 35 penetrates through the upper polarizer 213. External light can pass through the upper polarizer 213 through the opening 35, and then pass through the color filter 214 and the liquid crystal layer 215 to enter the hollow hole 31, so that the camera module 41 collects the external light through the hollow hole 31 and the opening 35. In other embodiments, the color filter 214 and the liquid crystal layer 215 are also opened with an opening 35 corresponding to the hollow hole 31, so as to improve the transmittance of light.

Referring to fig. 13, the carbonized part 32 is a non-light-transmitting part of the polarizer 212, and the carbonized part 32 is formed by carbonizing a part of the polarizer 212 close to the hollow hole 31. Hollow hole 31 is the round hole, carbonization portion 32 is cyclic annularly, carbonization portion 32 form in all sides of hollow hole 31, then backlight 22 court during polaroid 212 transmitted light, carbonization portion 32 can block the process the light of polaroid 212 is followed the inside wall department of hollow hole 31 reveals to need not to form the cover through the point glue technology the shading glue film 23 of hollow hole 31 inside wall is favorable to simplifying the structure and reduces the technology degree of difficulty, thereby reduce cost.

The carbonized part 32 has a first edge 321 and a second edge 322 disposed opposite to the first edge 321. The first edge 321 and the second edge 322 both surround the periphery of the hollow hole 31. The first edge 321 constitutes a periphery of the hollow hole 31. The second edge 322 surrounds the first edge 321 and is disposed concentrically with the first edge 321 such that the carbonized part 32 has a regular circular ring shape.

Referring to fig. 14, in other embodiments, the hollow hole 31 penetrates through the edge of the polarizer, so that the hollow hole 31 is a special-shaped hole, and the carbonized part 32 is in a curved strip shape.

Referring to fig. 11 and 13, the polarizer 212 further includes a main portion 33 integrally disposed with the carbonized portion 32, the main portion 33 is transparent to light, and the main portion 33 is used for converting the light of the backlight layer 22 into polarized light. In the present embodiment, the main body 33 is a portion of the polarizer 212 corresponding to the main body 33. When the main body portion 33 is provided integrally with the carbonized part 32, the main body portion 33 and the carbonized part 32 together constitute a solid portion of the polarizer 212. The main body 33 is a transparent portion 223 of the polarizer 212, and the carbonized portion 32 is a non-transparent portion of the polarizer 212. The carbonization part 32 separates the main body part 33 from the hollow hole 31, so as to block the light of the main body part 33 from being emitted into the hollow hole 31, thereby avoiding affecting the photographing quality of the camera module 41. The carbonization part 32 is a non-light-transmitting structure integrally arranged with the main body part 33, so that the polarizer 212 can transmit backlight through the main body part 33 and shield light of the main body part 33 through the carbonization part 32, and the carbonization part 32 isolates the backlight passing through the main body part 33 from the shooting light passing through the hollow hole 31, thereby avoiding the problem of light crosstalk.

Referring to fig. 15, the carbonizing portion 32 is further provided with an inclined sidewall 323 surrounding the hollow hole 31, and the inclined sidewall 323 forms an included angle with the normal direction of the polarizer 212. In this embodiment, the inclined sidewall 323 is located at the position where the carbonization portion 32 is close to the hollow hole 31, and the inclined sidewall 323 and the normal direction of the polarizer 212 form an included angle, so that the hollow hole 31 is funnel-shaped. The inclined sidewall 323 may block the backlight from leaking to the opening 35 of the upper polarizer 213 in a direction inclined from the normal direction of the polarizer 212, thereby preventing the backlight from leaking in the area of the opening 35 of the display panel 21 when viewed by a user at a specific viewing angle.

Referring to fig. 16, further, a through hole 221 is disposed at a position of the backlight layer 22 corresponding to the hollow hole 31, an orthogonal projection of the through hole 221 on the polarizer 212 is located in an area where the hollow hole 31 is located, and the display module 20 further includes a light-shielding adhesive layer 23 covering a portion of the backlight layer 22 corresponding to the hollow hole 31.

In this embodiment, the central axis of the through hole 221 coincides with the central axis of the through hole 31, and the size of the through hole 221 is smaller than the size of the through hole 31, so that the orthographic projection of the through hole 221 on the polarizer 212 is located in the area of the through hole 31, and the backlight layer 22 completely covers the portion of the polarizer 212 except for the through hole 31. The backlight layer 22 has a light-transmitting portion 223 formed at the periphery of the through hole 221. The orthographic projection of the light-transmitting part 223 on the polarizer 212 is located in the area of the hollow hole 31. The light-shielding adhesive layer 23 covers the portion of the backlight layer 22 corresponding to the hollow hole 31, that is, the light-transmitting portion 223, so as to prevent the backlight from entering the through hole 221 and the hollow hole 31 through the light-transmitting portion 223.

Referring to fig. 17 and 18, a groove 34 is formed between the carbonized part 32 and the backlight layer 22, and the light-shielding adhesive layer 23 is at least partially filled in the groove 34 and covers the carbonized part 32. The groove 34 is formed between the carbonized part 32 and the light transmitting part 223, and the groove 34 constitutes a part of the hollow hole 31. Since the carbonized part 32 and the light transmission part 223 are both annular, so that the groove 34 is an annular groove, the light-shielding adhesive layer 23 forms an annular adhesive layer. The light-shielding adhesive layer 23 is filled in the groove 34, the light-shielding adhesive layer 23 can coat the carbonized part 32, and the light-shielding adhesive layer 23 can isolate the carbonized part 32 from the outside and reinforce the carbonized part 32, so that particles of the carbonized part 32 are prevented from being separated from the body and falling into the backlight layer 22 or other structures.

The through hole 221 has a light-transmitting side surface 222, the groove 34 has a light-transmitting bottom surface 341 connected to the light-transmitting side surface 222, and the light-shielding adhesive layer 23 covers the light-transmitting bottom surface 341 and the light-transmitting side surface 222, on one hand, the light-shielding adhesive layer 23 can shield the light-transmitting bottom surface 341 and the light-transmitting side surface 222, so as to prevent the backlight layer 22 from leaking light at the light-transmitting bottom surface 341 and the light-transmitting side surface 222; on the other hand, the light-shielding adhesive layer 23 covers the light-transmitting bottom surface 341, the light-transmitting side surface 222, and the sidewall of the carbonized part 32 near the hollow hole 31, so that the connection strength between the light-shielding adhesive layer 23 and the carbonized part 32 and the main body part 33 is enhanced, and the reinforcing effect on the carbonized part 32 is enhanced.

Referring to fig. 16 and 18, further, the display module 20 further includes a display structure layer 217 stacked on a side of the polarizer 212 away from the backlight layer 22, the display structure layer 217 is transparent to light, and the light-shielding adhesive layer 23 bonds the display structure layer 217, the carbonization portion 32, and the backlight layer 22.

In this embodiment, the display structure layer 217 includes the upper polarizer 213, the color filter 214, the liquid crystal layer 215, and the thin film transistor layer 216. The thin-film transistor layer 216 is attached to the side of the polarizer 212 away from the backlight layer 22. A gap exists between the part of the display structure layer 217 corresponding to the hollow hole 31 and the part of the backlight layer 22 corresponding to the hollow hole 31. The light-shielding adhesive layer 23 may fill the gap to bond the display structure layer 217, the carbonized part 32 and the backlight layer 22, so as to ensure that the display structure layer 217 is attached to the carbonized part 32 of the polarizer 212, thereby preventing light leakage caused by the gap formed between the display structure layer 217 and the carbonized part 32. The hollow hole 31 and the through hole 221 form an installation space, and the camera module 41 may be partially accommodated in the installation space and directly face the opening 35 of the upper polarizer 213, so as to collect external light through the opening 35. The carbonized part 32 and the shading glue surround the periphery of the camera module 41 to shield the light of the backlight layer 22 together, thereby ensuring the shooting quality of the camera module 41.

In summary, although the present application has been described with reference to the preferred embodiments, the present application is not limited to the preferred embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the protection scope of the present application is determined by the scope of the appended claims.

Claims

1. The manufacturing method of the display screen module is characterized by comprising the following steps:

2. The method of claim 1, wherein the step of attaching the backlight to the polarizer includes forming a recess between the carbonized part and the polarizer,

the step of forming a light shielding adhesive layer covering the part of the backlight piece corresponding to the hollow hole comprises the following steps:

providing dispensing equipment and shading glue;

and filling the shading glue into the groove by using a dispensing device, wherein the shading glue forms a shading glue layer which is filled in the groove and coats the carbonization part.

3. The method for manufacturing a display screen module according to claim 1, wherein the step of providing a display panel comprises:

providing a polarizer to be processed, wherein the part to be processed of the polarizer to be processed is provided;

and processing a hollowed hole on the part to be processed by utilizing a laser beam, and carbonizing the part of the part to be processed except the hollowed hole under the action of the laser to form the carbonized part.

4. The method for manufacturing a display screen module according to claim 3, wherein in the step of processing the hollow hole on the portion to be processed by using the laser beam,

and the laser beam processes the part to be processed according to a preset annular feed track so as to obtain the hollowed-out hole.

5. The method for manufacturing the display screen module according to claim 4, wherein in the step of processing the part to be processed by the laser beam according to a preset annular feed track, the laser beam forms an included angle with the normal direction of the polarizer to be processed.

6. The polaroid is characterized in that the polaroid is provided with a hollow hole and a carbonization part formed at the periphery of the hollow hole, the hollow hole is used for partially accommodating a camera module so that the camera module can collect external light, and the carbonization part is used for shielding the light.

7. The polarizer of claim 6, wherein the polarizer is provided with a main body portion integrally provided with the carbonized portion, the main body portion being permeable to light, the main body portion being for converting light of the backlight layer into polarized light.

8. The polarizer according to claim 6, wherein said carbonized part has an inclined sidewall surrounding the circumference of said hollowed hole, said inclined sidewall being disposed at an angle to the normal direction of said polarizer.

9. A display screen module, wherein the display screen module comprises a display panel and a backlight layer stacked on the display panel, the display panel has a non-display area, the display panel comprises the polarizer according to any one of claims 6 to 8, the polarizer is fixedly connected and attached to the backlight layer, and the carbonization part and the hollow hole are disposed in the non-display area.

10. The display screen module of claim 9, wherein a through hole is formed in the backlight layer corresponding to the hollow hole, an orthographic projection of the through hole on the polarizer is located in an area where the hollow hole is located, and the display screen module further comprises a light-shielding adhesive layer covering a portion of the backlight layer corresponding to the hollow hole.

11. The display screen module of claim 10, wherein a groove is formed between the carbonized part and the backlight layer, and the light-shielding glue layer at least partially fills the groove and covers the carbonized part.

12. The display screen module of claim 11, wherein the through hole has a light-transmissive side surface, the recess has a light-transmissive bottom surface connected to the light-transmissive side surface, and the light-blocking adhesive layer covers the light-transmissive bottom surface and the light-transmissive side surface.

13. The display screen module of claim 10, further comprising a display structure layer laminated on a side of the polarizer away from the backlight layer, wherein the display structure layer is transparent to light, and the light-shielding adhesive layer bonds the display structure layer, the carbonized portion, and the backlight layer.

14. An electronic device, characterized in that the electronic device comprises the display screen module of any one of claims 9-13.