CN113064296A

CN113064296A - Display screen and electronic equipment

Info

Publication number: CN113064296A
Application number: CN202110356713.1A
Authority: CN
Inventors: 胡赛峰
Original assignee: Shanghai Moruan Communication Technology Co Ltd
Current assignee: Shanghai Moruan Communication Technology Co Ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-07-02

Abstract

The embodiment of the invention relates to the technical field of display screens, and discloses a display screen and electronic equipment. According to the invention, the fixing part is formed by extending inwards the edge of the hole wall of the mounting hole formed in the iron frame of the backlight module in the display screen, which is close to the lower polarizing layer, so that the contact area between the iron frame and the liquid crystal glass layer, which is far away from the transparent substrate, is increased, and the fixing part can be fixed on one side, which is far away from the transparent substrate, of the liquid crystal glass layer by directly using the shading adhesive tape, so that the fixing can be realized without dispensing, and the technical problem that the imaging effect of the camera module is influenced due to light leakage easily caused by the existing dispensing.

Description

Display screen and electronic equipment

Technical Field

The embodiment of the invention relates to the technical field of display screens, in particular to a display screen and electronic equipment.

Background

The mounting hole needs to be seted up at the position of module of making a video recording (camera) installation to the backlight unit of full face screen (like present mainstream through-hole screen and blind hole screen) to the module is made a video recording to the holding, gets into the module of making a video recording through the display screen in order to prevent that external light from, and then influences the formation of image effect of the module of making a video recording. The current solution is to fix the iron frame of the backlight module to the liquid crystal glass layer and simultaneously play a role in shading light by dispensing black glue around the hole wall of the hole.

However, in this solution, the black glue needs to be applied twice, the first time at the edge of the lower polarizer and the second time at the edge of the bezel. The dispensing process needs special dispensing equipment, and the amount and shape of the dispensed glue can directly affect the imaging effect of the camera module, so that the problems cannot be solved. For example, if the glue is left out by the first glue dispensing, light leakage of the lower polarizer is caused; for example, if the glue is lost by the second dispensing, the iron frame is easy to deform, and various light leakage problems occur.

Disclosure of Invention

The embodiment of the invention aims to provide a display screen and electronic equipment, and aims to solve the technical problem that the imaging effect of a camera module is influenced because light leakage is easy to occur in the existing dispensing scheme.

To solve the above technical problem, an embodiment of the present invention provides a display screen, including: the backlight module comprises an iron frame and a backlight layer arranged in the iron frame, wherein the backlight module comprises a light through hole, and the iron frame and the backlight layer are respectively provided with a mounting hole which is coaxial with the light through hole and faces the light through hole along the axial direction of the light through hole; one end edge of the hole wall of the mounting hole, which is close to the lower polarizing layer, extends inwards to form a fixing part, and the fixing part is fixed on one side, which is far away from the transparent substrate, of the liquid crystal glass layer through a shading adhesive tape.

An embodiment of the present invention further provides an electronic device, including: a display screen as described above.

According to the display screen and the electronic equipment provided by the embodiment of the invention, the hole wall of the mounting hole formed in the iron frame is changed into a Z shape, namely, the fixing part extends inwards, so that the fixing part is directly adhered to the liquid crystal glass layer by the light-shielding adhesive tape, the iron frame can be fixed on the liquid crystal glass layer without dispensing, and various problems existing in the existing dispensing are solved.

In addition, because the display screen and the electronic equipment provided by the embodiment cancel the dispensing process, the equipment cost is reduced, and the material yield is improved.

In addition, the inner hole wall of the mounting hole is subjected to blackening treatment by adopting a physical vapor deposition process. Because the iron frame surface facing the camera module is substantially the inner hole wall of the mounting hole, the embodiment of the invention can effectively prevent the reflection of the iron frame from influencing the imaging effect of the camera module (camera) by adopting the physical vapor deposition process PVD to carry out blackening treatment on the inner hole wall of the mounting hole, namely, the shooting effect can be effectively ensured by the treatment mode.

In addition, the surface of the fixed part, which is in contact with the shading adhesive tape, is a smooth contact surface. The fixed part sets up to smooth contact surface, need not to modify the stamping die of chase, when guaranteeing the bonding effect, can not increase cost.

In addition, the surface of the fixing part, which is in contact with the shading adhesive tape, is a rough contact surface. For the application scene with high requirement on the bonding effect, the fixing part of the prepared iron frame is a rough contact surface by modifying the stamping die of the iron frame, so that the bonding effect is further improved.

In addition, the inner hole wall and the outer hole wall of the mounting hole are not provided with rubber frames. According to the embodiment of the invention, the rubber frame is only arranged on the outer frame of the iron frame in a surrounding manner, and the inner hole wall (facing the camera module) and the outer hole wall (facing the backlight layer) of the mounting hole are not provided with the rubber frame, so that the thicknesses of the rubber frame and the iron frame are reduced as much as possible, more areas are reserved for the fixing part, namely, the contact width between the fixing part and the liquid crystal glass layer can be increased as much as possible, and the iron frame can be firmly fixed on the liquid crystal glass layer by adopting the shading adhesive tape without dispensing treatment.

In addition, the length of the shading adhesive tape is greater than the width of the fixing part; the part of the shading adhesive tape, which exceeds the fixed part and faces the mounting hole, does not exceed a preset dispensing range, and the part of the shading adhesive tape, which exceeds the outer hole wall of the mounting hole, does not contact with the lower polarizer. According to the embodiment of the invention, the part of the shading adhesive tape facing the mounting hole does not exceed the preset dispensing range, so that the bonding effect with the fixing part is ensured, and the shooting effect of the camera module is not influenced.

In addition, the contact width of the fixed part and the liquid crystal glass layer is 0.35 mm.

In addition, the shading adhesive tape is black glue. According to the embodiment of the invention, the fixing part and the liquid crystal glass layer are bonded by adopting the black and black glue, so that the bonding effect is ensured, and the light can be prevented from being reflected to the camera module, thereby ensuring the imaging effect of the camera module.

In addition, the display screen is a blind hole screen or a through hole screen.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic view of a partial structure of a display screen obtained after normal dispensing;

FIG. 2 is a schematic view of a partial structure of a display screen obtained by first dispensing and glue shortage;

FIG. 3 is a schematic view of a partial structure of a display screen obtained by glue shortage in the second dispensing;

FIG. 4 is a schematic view of a partial structure of another display screen obtained by glue dispensing and glue shortage for the second time;

fig. 5 is a schematic partial structure diagram of a display screen according to a first embodiment of the present invention;

fig. 6 is a schematic partial external view of an iron frame in a display screen according to a first embodiment of the present invention.

Description of the prior art reference numbers:

reference numerals	Name (R)	Reference numerals	Name (R)
				11'	Transparent substrate	12'	Upper polarizing layer
13'	Transparent cover plate	14'	Liquid crystal glass layer
				15'	Lower polarizing layer	16'	Backlight layer
17'	Iron frame	18'	Shading adhesive tape
				A	First time glue dispensing	B	Second time glue dispensing

The invention is illustrated by the reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				11	Transparent substrate	12	Upper polarizing layer
13	Transparent cover plate	14	Liquid crystal glass layer
				15	Lower polarizing layer	16	Backlight layer
17	Iron frame	17-1	Fixing part
				18	Shading adhesive tape

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Current display screen no matter is blind hole screen or through-hole screen, and the module is made a video recording to the holding, perhaps other optical assembly, backlight unit like flash light, sensor etc. all need set up the mounting hole, then go up the black glue in the interior pore wall of mounting hole and the local point that liquid crystal glazing layer contacted, when fixing liquid crystal glazing layer with backlight unit's chase, the realization prevents that light from getting into the module of making a video recording from the gap of mounting hole to guarantee the formation of image effect of the module of making a video recording. However, according to the dispensing scheme, two times of dispensing are required, and a special dispensing device is required for the dispensing process, and the amount and shape of the dispensed glue directly affect the fixing effect of the iron frame and the imaging effect of the camera module. Fig. 1 to 4 illustrate several common dispensing situations in the conventional dispensing scheme.

Referring to fig. 1 to 4, a display screen of a conventional dispensing scheme includes: a transparent substrate 11', an upper polarizing layer 12' disposed on the upper surface of the transparent substrate 11', a transparent cover plate 13' attached to the upper polarizing layer 12', a liquid crystal glass layer 14' disposed on the lower surface of the transparent substrate 11', a lower polarizing layer 15' disposed on the side of the liquid crystal glass layer 14 'away from the transparent substrate 11', a backlight layer 16 'disposed on the side of the lower polarizing layer 15' away from the liquid crystal glass layer 14', an iron frame 17' accommodating the backlight layer 16', and a light-shielding tape 18' attaching the lower polarizing layer 15 'and the backlight layer 16'.

Specifically, fig. 1 shows that in the conventional dispensing scheme, two dispensing operations are normal (the first operation is performed between the lower polarizer layer 15 'and the liquid crystal glass layer 14', area a in fig. 1, the second operation is performed between the bezel 17 'and the liquid crystal glass layer 14', and area B in fig. 1); fig. 2 is a specific case of abnormal first dispensing, that is, light is emitted from the backlight layer 16' to the liquid crystal glass layer 14' through the lower polarizing layer 15' along an arrow in fig. 2 from the glue lacking region due to glue shortage in the first dispensing, so that the display effect of an image on the display screen and the imaging effect of the camera module located in the mounting hole are affected; fig. 3 and 4 are two kinds of abnormal specific situations of second dispensing respectively, and due to the glue shortage of the second dispensing, the iron frame 17' cannot be fixed on the liquid crystal glass layer 14', so that the iron frame 17' is easily deformed in the use process of the display screen, and then light is caused to enter the camera module in the mounting hole along the direction of the arrow in fig. 3 and 4, so that the imaging effect of the camera module is affected.

In order to solve the above technical problems of the display screen prepared by the existing dispensing process, the present invention provides a display screen, which can be applied to an electronic device with a camera, such as a mobile phone, a tablet computer, etc., but is not limited thereto. The following description will be given taking as an example a configuration in which a display screen is applied to an electronic apparatus having a camera. Fig. 5 and 6 show a preferred embodiment of the display screen provided by the present invention.

As can be seen with reference to fig. 5 and 6, the display screen includes: the backlight module comprises a transparent substrate 11, an upper polarizing layer 12 arranged on the upper surface of the transparent substrate 11, a transparent cover plate 13 attached on the upper polarizing layer 12, a liquid crystal glass layer 14 arranged on the lower surface of the transparent substrate 11, a lower polarizing layer 15 arranged on one side of the liquid crystal glass layer 14 far away from the transparent substrate 11, and a backlight module arranged on one side of the lower polarizing layer 15 far away from the liquid crystal glass layer 14.

Specifically, backlight unit includes: a backlight layer 16 and an iron frame 17 accommodating the backlight layer 16.

In addition, the lower polarizing layer 15 is provided with a light passing hole, the backlight layer 16 and the bezel 17 are provided with a mounting hole which is coaxial with the light passing hole and faces the light passing hole along the axial direction of the light passing hole, and one end edge of the hole wall of the mounting hole close to the lower polarizing layer 15 extends inwards to form a fixing part 17-1, that is, the mounting hole provided on the bezel 17 in this embodiment is a "Z" structure (a cross-sectional structure formed by the fixing part 17-1+ the hole wall + the bezel ground far from the lower polarizing layer 15) as shown in fig. 6.

Since the iron frame 17 provided in this embodiment extends inward to form the fixing portion 17-1 toward one end edge of the hole wall of the mounting hole near the lower polarizing layer 15 during stamping, specifically, in practical application, the width of the fixing portion 17-1 may be 0.35mm, which greatly increases the contact area between the iron frame 17 and the liquid crystal glass layer 14 compared with a frame in which the contact width between the existing iron frame and the liquid crystal glass layer is only 0.1 mm. Therefore, with the iron frame of the "Z" shaped structure provided in this embodiment, the fixing portion 17-1 can be directly fixed to the side of the liquid crystal glass layer 14 away from the transparent substrate 11 by using the light-shielding tape 18.

In addition, it is worth mentioning that, in order to reserve enough area for the fixing portion 17-1 as much as possible, even if the contact width between the fixing portion 17-1 and the liquid crystal glass layer 14 is as large as possible, no plastic frame is disposed on the inner hole wall and the outer hole wall of the mounting hole formed on the bezel 17 in this embodiment, that is, the plastic frame is only poured at the place where the outer edges of the bezel 17 and the transparent substrate 11, the upper polarizing layer 12, the transparent cover plate 13, the liquid crystal glass layer 14, the lower polarizing layer 15, and the backlight layer 16 included in the display screen are in contact, so as to reduce the thickness of the plastic frame + the bezel as much as possible, reserve more area for the fixing portion 17-1, that is, the contact width between the fixing portion 17-1 and the liquid crystal glass layer 14 can be increased as much as possible, thereby ensuring that the bezel 17 can be firmly fixed on the liquid crystal glass layer 14 by using the, dispensing is not required.

In addition, as for the light-shielding tape, black glue is selected in the embodiment, so that the bonding effect between the iron frame 17 and the liquid crystal glass layer 14 is ensured, and the light-shielding effect is also ensured.

In addition, it can be understood that, in practical applications, other types of masking tapes may also be selected according to business requirements, and this embodiment does not limit this.

In addition, as for the iron frame 17, when stamping, the contact surface of the fixing portion 17-1 is formed by extending inward towards one end edge of the hole wall of the mounting hole close to the lower polarizing layer 15.

Specifically, since in practical use, in the case where the roughness is slightly larger than the undulation, the contact area can be increased when the black paste is pressed down, and the adhesion is easier. But the smooth surface contact area is small, and meanwhile, the smooth surface contact surface of the black glue is rough, so that air, water, gas and the like easily enter, and the bonding strength is further reduced.

Therefore, for the situation that the display screen is applied to the electronic equipment in the scene with relatively low humidity, namely, low water vapor content in the air, if the electronic equipment is thrown into the northern area with little rain and drought, the stamping die for stamping the iron frame can not be modified, the contact surface between the fixing part 17-1 of the stamped iron frame 17 and the shading tape is a smooth contact surface, so that a difference die does not need to be modified, the implementation cost cannot be additionally increased, and the bonding effect can also be considered.

On the contrary, for the case that the display screen is applied to the electronic equipment in the scene with relatively high humidity, namely, high water vapor content in the air, if the electronic equipment is thrown into redundant and humid southern areas, the stamping die for stamping the iron frame can be modified, so that the contact surface of the fixing part 17-1 of the stamped iron frame 17 and the shading adhesive tape is a rough contact surface, and the bonding effect is further ensured.

In addition, in practical use, in order to further secure the bonding effect, the length of the light-shielding tape needs to be slightly larger than the width of the fixing portion 17-1.

Specifically, the length of the light-shielding tape in this embodiment needs to be slightly greater than the width of the fixing portion 17-1: the part of the shading adhesive tape, which exceeds the fixing part 17-1 and faces the mounting hole, does not exceed the preset dispensing range, and the part of the shading adhesive tape, which exceeds the outer hole wall of the mounting hole, does not contact with the lower polarizer 15.

It should be noted that the above-mentioned predetermined dispensing range refers to a normal second dispensing region in the existing dispensing scheme, i.e. the second dispensing region between the bezel 17 'and the liquid crystal glass layer 14' is pointed as shown in fig. 1, so that the edge of the black glue does not affect the imaging effect of the camera module in the mounting hole.

Further, in concrete implementation, in order to prevent the hole wall reflection of light of the mounting hole set up on the iron frame 17 from influencing the imaging effect of the camera module set accommodated in the mounting hole, the inner hole wall of the mounting hole is blackened by Physical Vapor Deposition (PVD) process, so that the iron frame surface facing the camera module set is substantially the inner hole wall of the mounting hole, and the imaging effect of the camera module set (camera) can be effectively prevented from being influenced by the iron frame reflection of light, i.e. the shooting effect can be effectively ensured by the processing mode.

In addition, it can be understood that the display screen described in this embodiment may also be a blind-hole screen or a through-hole screen, that is, the above technical solution provided in this embodiment can be perfectly applied to two kinds of full-surface screens (blind-hole screens and through-hole screens) in the mainstream at present.

Through the above description, it is not difficult to discover that the display screen that this embodiment provided changes the pore wall of the mounting hole of seting up on the chase and is the Z type, inwards extends the fixed part promptly, directly adopts the shading sticky tape to bond the fixed part to the liquid crystal glazing layer like this, both can realize fixing the chase on the liquid crystal glazing layer, need not the point and glue to various bad problems that have solved current point and have glued the existence.

The invention also provides electronic equipment which comprises the display screen, wherein the display screen adopts the technical scheme of the embodiment, so that the electronic equipment has the beneficial effects brought by the technical scheme of the embodiment.

In addition, it can be understood that, in practical applications, the electronic device may be any terminal device with a camera function, such as a mobile phone, a tablet computer, and the like.

In addition, electronic equipment still includes at least one module of making a video recording, to the electronic equipment that only has a single camera, the module of making a video recording that includes is one, and to the electronic equipment of many cameras, the module of making a video recording that includes is a plurality of.

Specifically, when the display screen is specifically implemented, each camera module passes through the mounting hole of the backlight module in the display screen.

Further, when being the blind hole screen to the display screen, the camera of the module of making a video recording will be installed and correspond the blind hole region on the display screen in the mounting hole.

Further, when being the through-hole screen to the display screen, the camera of the module of making a video recording will be installed and correspond the through-hole region on the display screen in the mounting hole.

Through the above description, it is not difficult to find that the electronic equipment provided in the embodiment adopts the display screen of the first embodiment, so that the technical problem that the existing dispensing scheme is easy to leak light and further influences the imaging effect of the camera module is solved based on the electronic equipment of the display screen, and the imaging effect of the electronic equipment prepared based on the display screen is better.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A display screen, comprising: the backlight module comprises an iron frame and a backlight layer arranged in the iron frame, wherein the backlight layer is provided with a light through hole, and the iron frame and the backlight layer are respectively provided with a mounting hole which is coaxial with the light through hole and faces the light through hole along the axial direction of the light through hole;

one end edge of the hole wall of the mounting hole, which is close to the lower polarizing layer, extends inwards to form a fixing part, and the fixing part is fixed on one side, which is far away from the transparent substrate, of the liquid crystal glass layer through a shading adhesive tape.

2. The display screen of claim 1, wherein the inner hole wall of the mounting hole is blackened by a physical vapor deposition process.

3. The display screen of claim 1, wherein the surface of the fixing portion in contact with the light-shielding tape is a smooth contact surface.

4. The display screen of claim 1, wherein the surface of the fixing portion in contact with the light-shielding tape is a rough contact surface.

5. The display screen of claim 1, wherein neither the inner nor the outer walls of the mounting holes are provided with a plastic frame.

6. The display screen of claim 1, wherein the length of the light blocking tape is greater than the width of the fixing portion;

the part of the shading adhesive tape, which exceeds the fixed part and faces the mounting hole, does not exceed a preset dispensing range, and the part of the shading adhesive tape, which exceeds the outer hole wall of the mounting hole, does not contact with the lower polarizer.

7. A display screen according to any one of claims 1 to 6, wherein the contact width of the fixing part and the liquid crystal glass layer is 0.35 mm.

8. The display screen according to any one of claims 1 to 6, wherein the light-shielding adhesive tape is black glue.

9. The display screen according to any one of claims 1 to 6, wherein the display screen is a blind hole screen or a through hole screen.

10. An electronic device, comprising: a display screen according to any one of claims 1 to 9.