Display screen structure, display screen and display device

Abstract

The utility model discloses a display screen structure, a display screen and a display device. The display screen structure comprises a backlight frame, a display screen and a first dispensing layer, the backlight frame is provided with a blind hole; the display screen is mounted on the backlight frame; the first dispensing layer is arranged between the inner side wall of the blind hole and the end face, facing the backlight frame, of the display screen and used for connecting the display screen and the backlight frame.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and in particular to a display screen structure, a display screen and a display device. Background Art

[0002] With the gradual development of screens, in order to facilitate the use of devices such as under-screen cameras, it is necessary to set blind holes under the display screen for other devices to work. After setting the blind holes, glue is needed between the LCD screen and the backlight frame to facilitate light leakage from the backlight frame to the display corresponding to the blind holes.

[0003] In the prior art, a first layer of glue is dispensed between the light-shielding glue layer and the display screen so that the first layer of glue exceeds the side wall of the blind hole. Then, a second layer of glue is dispensed between the first layer of glue and the inner wall of the blind hole. The manufacturing process is complicated, and the blind hole needs to be prevented from light leakage by bonding the first layer of glue with the second layer of glue. However, the contact area between the first layer of glue and the second layer of glue at the position of the blind hole is small, and the adhesion is insufficient. When the whole machine is subjected to a drop test, the backlight is easily displaced, causing light leakage in the hole. Utility Model Content

[0004] The main purpose of the utility model is to provide a display screen structure, a display screen and a molding method of a display device, aiming to solve the problem that blind holes are prone to light leakage in the holes.

[0005] To achieve the above object, the utility model provides a display screen structure, comprising:

[0006] A backlight frame is formed with a blind hole;

[0007] A display screen is mounted on the backlight frame; and

[0008] The first glue dispensing layer is arranged between the inner side wall of the blind hole and the end surface of the display screen facing the backlight frame, and is used to connect the display screen and the backlight frame.

[0009] Optionally, the display screen structure further includes a light shielding adhesive layer, formed with a first via hole, disposed between the backlight frame and the display screen, and the first via hole is disposed corresponding to the blind hole;

[0010] The first glue dispensing layer is connected to the inner side wall of the first via hole.

[0011] Optionally, the display screen structure further includes a lower polarizer, the lower polarizer is disposed between the light-shielding adhesive layer and the display screen, and the lower polarizer is formed with a second via hole corresponding to the blind hole;

[0012] The first glue dispensing layer is connected to the inner side wall of the second via hole.

[0013] Optionally, the diameter of the second via hole is equal to that of the first via hole, and is smaller than the diameter of the blind hole.

[0014] Optionally, a groove is formed on the end surface of the light-shielding adhesive layer facing the backlight frame, and the side wall of the blind hole is correspondingly arranged in the groove.

[0015] Optionally, the first via hole has a diameter equal to that of the blind hole and is smaller than the diameter of the second via hole, so as to form a step surface on the light-shielding adhesive layer facing the display screen;

[0016] A second glue dispensing layer is disposed between the first glue dispensing layer and the inner side wall of the second via hole, wherein the width of the second glue dispensing layer is less than or equal to the width of the step surface.

[0017] Optionally, the display screen structure further includes an annular BM layer, and the annular BM layer is arranged corresponding to the blind hole and is arranged to cover the side wall of the blind hole.

[0018] Optionally, the display screen structure further includes a backlight assembly, which is mounted on the backlight frame and is located between the backlight frame and the display screen, and the backlight assembly is arranged to avoid the blind hole.

[0019] The utility model also provides a display screen, comprising the display screen structure according to any one of the above items.

[0020] The utility model also provides a display device, comprising the display screen described above.

[0021] In the display screen structure provided by the present invention, the first glue layer directly connects the display screen and the backlight frame, so that the first glue layer directly contacts the display screen, shields the gap between the display screen and the backlight frame, and avoids light leakage from the blind holes of the display screen structure. At the same time, the first glue layer does not need to be connected to the display screen through multiple glue layers or bypassed with other glue layers, thereby increasing the adhesion area of ​​the first glue layer, improving the bonding strength between the display screen and the backlight frame, and avoiding shedding and light leakage between the display screen and the backlight frame when falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a display screen structure in the prior art;

[0023] Figure 2 It is a structural schematic diagram of the display screen structure provided by the first embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a display screen structure provided by the second embodiment of the utility model.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] See also Figure 1 With the gradual development of screens, in order to facilitate the use of devices such as under-screen cameras, it is necessary to set blind holes under the display screen for other devices to work. After setting the blind holes, glue needs to be applied between the display screen and the backlight frame to facilitate light leakage from the backlight frame to the display corresponding to the blind holes.

[0033] In the prior art, a first layer of glue is dispensed between the light-shielding glue layer and the display screen so that the first layer of glue exceeds the side wall of the blind hole. Then, a second layer of glue is dispensed between the first layer of glue and the inner wall of the blind hole. The manufacturing process is complicated, and the blind hole needs to be prevented from light leakage by bonding the first layer of glue with the second layer of glue. However, the contact area between the first layer of glue and the second layer of glue at the position of the blind hole is small, and the adhesion is insufficient. When the whole machine is subjected to a drop test, the backlight is easily displaced, causing light leakage in the hole.

[0034] See also Figure 2 The utility model provides a display screen structure 100, comprising a backlight frame 1, a display screen 2 and a first glue layer 3; the backlight frame 1 is formed with a blind hole; the display screen 2 is mounted on the backlight frame 1; the first glue layer 3 is arranged between the inner side wall of the blind hole and the end face of the display screen 2 facing the backlight frame 1, for connecting the display screen 2 and the backlight frame 1.

[0035] In the display screen structure 100 provided by the present invention, the first glue layer 3 directly connects the display screen 2 and the backlight frame 1, so that the first glue layer 3 directly contacts the display screen 2, shields the gap between the display screen 2 and the backlight frame 1, and avoids light leakage from the blind holes of the display screen structure 100. At the same time, the first glue layer 3 does not need to be connected to the display screen 2 through multiple glue layers or by winding other glue layers, thereby increasing the adhesion area of ​​the first glue layer 3 and improving the bonding strength between the display screen 2 and the backlight frame 1, thereby avoiding shedding and light leakage between the display screen 2 and the backlight frame 1 when falling.

[0036] It should be noted that a blind hole is formed on the backlight frame 1, which is a prior art in the field, wherein a backlight groove is formed on one end surface of the backlight frame 1, the blind hole is penetrated on the bottom wall surface of the backlight groove, and the side edge of the backlight frame at the blind hole is bent outward from the backlight groove to form a folded edge to form the side wall of the blind hole, and the height of the side wall of the blind hole is the same as the height of the side wall of the backlight groove.

[0037] Specifically, the display screen structure 100 further includes a light shielding adhesive layer 4, which is formed with a first via hole, and is disposed between the backlight frame 1 and the display screen 2, and the first via hole is disposed corresponding to the blind hole; the first adhesive layer 3 is connected to the inner side wall of the first via hole. In this embodiment, the light shielding adhesive layer 4 is disposed at the blind hole, so that the backlight component on the backlight frame 1 can be shielded, which facilitates the placement of the backlight component on the backlight frame 1.

[0038] Furthermore, the display screen structure 100 further includes a lower polarizer 5, which is disposed between the light shielding adhesive layer 4 and the display screen 2, and the lower polarizer 5 forms a second via hole corresponding to the blind hole; the first adhesive layer 3 is connected to the inner side wall of the second via hole. In this embodiment, the first adhesive layer 3 is connected to the inner side walls of the first via hole and the second via hole at the same time, and is directly connected to the display screen 2 by adhesive, so as to directly shield the gap between the display screen and the backlight frame through an adhesive layer to prevent light leakage. At the same time, only a single adhesive dispensing is required to complete the sealing, thereby strengthening the adhesion between the backlight and the LCD, preventing displacement, and reducing the production cost of the product.

[0039] See also Figure 2 In the first embodiment provided by the utility model, the diameter of the second via hole is equal to that of the first via hole, and is set to be smaller than the diameter of the blind hole. In this embodiment, the edges of the light-shielding adhesive layer 4 and the lower polarizer 5 are made to extend beyond the side walls of the blind hole, and the light-shielding adhesive layer 4 and the lower polarizer 5 form a step surface facing away from the display screen 3, so that the contact area when the first adhesive layer 3 is connected to the light-shielding adhesive layer 4 and the lower polarizer 5 is increased, thereby improving the connection strength and avoiding light leakage caused by the adhesive layer's bonding failure when falling.

[0040] Furthermore, a groove is formed on the end surface of the light-shielding adhesive layer 4 facing the backlight frame 1, and the side wall of the blind hole is correspondingly arranged in the groove. In this embodiment, through the groove, when the end surface of the light-shielding adhesive layer 4 facing the backlight frame 1 and the backlight frame 1 clamp the backlight assembly, the length of the side wall of the blind hole is greater than the thickness of the backlight assembly, and the sealing and light shielding between the light-shielding adhesive layer 4 and the backlight frame 1 is achieved through the groove, and light leakage is avoided through the physical structure.

[0041] In the embodiment provided by the present utility model, the diameters of the second via hole and the first via hole are 0.15 mm smaller than the radius of the blind hole, so that the edges of the light-shielding adhesive layer 4 and the lower polarizer 5 extend beyond the side walls of the blind hole by 0.15 mm; in addition, the depth of the groove is 0.02 mm, so that the side walls of the blind hole are 0.02 mm higher than the thickness of the backlight assembly.

[0042] In this embodiment, by arranging the light-shielding adhesive layer 4 and the lower polarizer 5 flush with each other and making the edge extend beyond the side wall of the blind hole, the light-shielding seal can be completed by only one glue dispense at the blind hole, thus saving working procedures and reducing production costs. At the same time, since the glue dispensed is in direct contact with the display screen, the contact area is increased, the bonding strength is enhanced, and the product's drop resistance is improved.

[0043] See also Figure 3In the second embodiment provided by the utility model, the diameter of the first via hole is equal to that of the blind hole, and is set to be smaller than that of the second via hole, so as to form a step surface facing the display screen 2 with the light-shielding adhesive layer 4; a second glue layer 6 is arranged between the first glue layer 3 and the inner side wall of the second via hole, wherein the width of the second glue layer 6 is less than or equal to the width of the step surface. In this embodiment, the lower polarizer 5 is placed on the light-shielding adhesive layer 4, and the edge is on the end face of the light-shielding adhesive layer 4, so that it is arranged in a step shape with the light-shielding adhesive layer 4, a step surface is formed on the light-shielding adhesive layer 4, and a second glue layer 6 is arranged on the step surface, and the width of the second glue layer 6 is smaller than the width of the step surface, so that the first glue layer 3 still shields the light-shielding adhesive layer 4 and the lower polarizer 5 at the same time. At the same time, the second glue layer 6 will not affect the connection area between the first glue layer 3 and the display screen, and the display screen is fixed by a secondary glue method, so that the anti-drop effect is better and the blind hole leakage is avoided.

[0044] On the other hand, the display screen structure 100 further includes an annular BM layer 7, which is arranged corresponding to the blind hole and is arranged to shield the sidewall of the blind hole. In this embodiment, the annular BM (black matrix) layer 7 is arranged to ensure the normal operation of the display screen.

[0045] On the other hand, the display screen structure 100 further includes a backlight assembly 8, which is mounted on the backlight frame 1 and is located between the backlight frame 1 and the display screen 2. The backlight assembly 8 is arranged to avoid the blind hole.

[0046] Based on the above-mentioned display screen structure 100, the utility model also provides a display screen, including the above-mentioned display screen structure 100, that is, it has all the technical features of the above-mentioned display screen structure 100, and therefore, it also has the technical effects brought by all the above-mentioned technical features, which will not be described one by one here.

[0047] Based on the above-mentioned display screen, the utility model also provides a display device, including the above-mentioned display screen, that is, including the above-mentioned display screen structure 100, and therefore, also including all the technical features of the above-mentioned display screen structure 100, and having the technical effects brought by all the above-mentioned technical features, which will not be described one by one here.

[0048] In the first embodiment provided by the utility model, the inner wall of the blind hole and the display screen are glued directly in the blind hole at one time to form the first glue layer on the inner wall of the blind hole and the end surface of the display screen facing the backlight frame.

[0049] In this embodiment, the original two dispensing steps are adjusted to only one dispensing step in the blind hole. The dispensing in the blind hole directly contacts the display body, thereby strengthening the adhesion between the backlight and the LCD, preventing displacement, and reducing the production cost of the product.

[0050] In the second embodiment provided by the present utility model, the light shielding adhesive layer and the display screen are initially glued together in the blind hole to form the second glue-dot layer between the light shielding adhesive layer and the display screen;

[0051] Then, glue is dispensed again in the blind hole to adhere the inner side wall of the blind hole and the display screen, so as to form the first glue dispensed layer on the inner side wall of the blind hole and the end surface of the display screen facing the backlight frame.

[0052] In this embodiment, although two glue dispensing operations are used, both times the glue dispensing operations are in direct contact with the display screen, the bonding width is larger, the anti-displacement effect when falling is better, and light leakage from the blind hole is avoided.

[0053] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A display screen structure, characterized in that: include: A backlight frame is formed with a blind hole; A display screen, mounted on the backlight frame; as well as, The first glue dispensing layer is arranged between the inner side wall of the blind hole and the end surface of the display screen facing the backlight frame.

2. The display screen structure according to claim 1, characterized in that: The display screen structure further includes a light shielding adhesive layer, formed with a first via hole, disposed between the backlight frame and the display screen, and the first via hole is disposed corresponding to the blind hole; The first glue dispensing layer is connected to the inner side wall of the first via hole.

3. The display screen structure according to claim 2, characterized in that: The display screen structure further includes a lower polarizer, which is disposed between the light-shielding adhesive layer and the display screen, and the lower polarizer is provided with a second via hole corresponding to the blind hole; The first glue dispensing layer is connected to the inner side wall of the second via hole.

4. The display screen structure according to claim 3, characterized in that: The diameter of the second via hole is equal to that of the first via hole, and is smaller than the diameter of the blind hole.

5. The display screen structure according to claim 4, characterized in that: A groove is formed on the end surface of the light shielding adhesive layer facing the backlight frame, and the side wall of the blind hole is correspondingly arranged in the groove.

6. The display screen structure according to claim 3, characterized in that: The diameter of the first via hole is equal to that of the blind hole, and is smaller than that of the second via hole, so as to form a step surface facing the display screen on the light shielding adhesive layer; A second glue dispensing layer is disposed between the first glue dispensing layer and the inner side wall of the second via hole, wherein the width of the second glue dispensing layer is less than or equal to the width of the step surface.

7. The display screen structure according to claim 1, characterized in that: The display screen structure further includes an annular BM layer, which is disposed corresponding to the blind hole and is disposed to shield the sidewall of the blind hole.

8. The display screen structure according to claim 1, characterized in that: The display screen structure further comprises a backlight assembly, which is mounted on the backlight frame and is located between the backlight frame and the display screen, and the backlight assembly is arranged to avoid the blind hole.

9. A display screen, characterized in that: The invention comprises a display screen structure according to any one of claims 1 to 8.

10. A display device, characterized in that: Comprising the display screen according to claim 9.

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