Narrow-frame liquid crystal display screen without backlight rubber frame

Abstract

The utility model discloses a narrow frame liquid crystal display screen without a backlight glue frame, which comprises an iron stand, a reflector plate, a light guide plate, an optical film group, a high-transmittance protective film, shading glue and a display module, and is characterized in that the iron stand comprises a bottom plate and a side wall extending upwards from the edge of the bottom plate; the reflector plate is arranged on the upper surface of the bottom plate; the light guide plate is arranged above the reflector plate; the optical film group is arranged above the light guide plate; the high-transmittance protective film is arranged above the optical film group, the high-transmittance protective film extends to the upper surface of the side wall, and the high-transmittance protective film and the side wall are pasted and fixed through a double-sided adhesive; the shading glue is arranged above the high-transmittance protective film in the non-display area; and the display module is arranged above the shading glue. The high-transmittance protective film is flush with the upper surface of the side wall after being tensioned, and then the shading glue can be pasted and fixed on the high-transmittance protective film through the double-sided adhesive.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to a narrow-border liquid crystal display screen without a backlight rubber mount. Background Art

[0002] With the popularization of narrow-border glass, the popularization of smart terminals has reached an unprecedented height. The innovation of the display screen brings amazing visual experience to users, and the requirements for structural design are even more refined. The border of the narrow-border glass will be made very narrow, and the corresponding backlight also needs to be made narrow. As a result, there is not enough space at the edge of the backlight to design a rubber mount, which causes the light-shielding rubber to have no position to be fixed, resulting in the liquid crystal display module and the backlight module unable to be pasted and fixed through the light-shielding rubber. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is how to fix the light-shielding rubber without a backlight rubber mount, so that the liquid crystal display module and the backlight module can be pasted and fixed through the light-shielding rubber.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:

[0005] To solve the above technical problem, the utility model provides a narrow-border liquid crystal display screen without a backlight rubber mount, which includes an iron frame, a reflective sheet, a light guide plate, an optical film group, a high-transparency protective film, a light-shielding rubber and a display module. The iron frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate; the reflective sheet is arranged on the upper surface of the bottom plate; the light guide plate is arranged above the reflective sheet; the optical film group is arranged above the light guide plate; the high-transparency protective film is arranged above the optical film group, and the high-transparency protective film extends to the upper surface of the side wall, and the high-transparency protective film and the side wall are fixedly pasted through double-sided adhesive; the light-shielding rubber is arranged above the high-transparency protective film located in the non-display area; the display module is arranged above the light-shielding rubber.

[0006] As a preferred embodiment of the narrow-border liquid crystal display screen without a backlight rubber mount provided by the utility model, the high-transparency protective film extends and bends to the outer side edge of the side wall, and the high-transparency protective film and the outer side edge of the side wall are fixedly pasted through double-sided adhesive.

[0007] As a preferred embodiment of the narrow-border liquid crystal display screen without a backlight rubber mount provided by the utility model, a semi-tangent line is arranged at the bending part of the high-transparency protective film.

[0008] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, a PCB board is disposed below the bottom plate. At least one retaining wall is stamped and formed at the top and bottom of the lower surface of the bottom plate. The retaining wall is perpendicular to the bottom plate. At least one torsion foot is stamped and formed on the left and right sides of the lower surface of the bottom plate. The torsion foot is rotatable. The PCB board is placed in the space defined by the retaining wall and the torsion foot.

[0009] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, the width of the retaining wall is 8 mm to 12 mm.

[0010] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, the assembly gap between the retaining wall and the PCB board is 0.3 mm to 0.5 mm.

[0011] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, the cross - sectional shape of the torsion foot is L - shaped. The torsion foot includes a root portion connected to the bottom plate and a torsion portion connected to the root portion.

[0012] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, the width of the root portion of the torsion foot is 4 mm to 6 mm.

[0013] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, a concave portion is formed at the connection between the root portion and the inner side of the torsion portion.

[0014] As a preferred embodiment of the narrow - bezel liquid crystal display with no backlight adhesive frame provided by the present utility model, the concave portion has a smooth transition.

[0015] The present utility model has the following beneficial effects:

[0016] Since a high - transparency protective film is disposed above the optical film group, this protective film has high transparency and does not affect the display effect of the liquid crystal display. After the high - transparency protective film is tensioned, it is flush with the upper surface of the side wall. Then, the light - shielding adhesive can be fixed on the high - transparency protective film through double - sided adhesion, so that the light - shielding adhesive still has enough space to be fixed even without a backlight adhesive frame, thereby enabling the liquid crystal display module and the backlight module to be fixed by the light - shielding adhesive. Description of the Drawings

[0017] To more clearly illustrate the solutions in this application, the following provides a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a narrow-bezel liquid crystal display without a backlight adhesive frame provided by the present utility model.

[0019] Figure 2 It is a schematic structural diagram of Embodiment 2.

[0020] Figure 3 For Figure 1 It is a schematic structural diagram of a high-transparency protective film.

[0021] Figure 4 It is a schematic structural diagram of Embodiment 3.

[0022] Figure 5 For Figure 4 It is a bottom view.

[0023] Figure 6 For Figure 5 It is a schematic structural diagram after fixing the PCB board.

[0024] Figure 7 For Figure 4 It is an enlarged view of Area A in

[0025] Explanation of the reference numerals in the drawings:

[0026] Iron frame 1; Reflector 2; Light guide plate 3; Optical film group 4; High-transparency protective film 5; Light-shielding adhesive 6; Display module 7; Bottom plate 11; Side wall 12; Double-sided adhesive 8;

[0027] Half tangent line 51; PCB board 9; Retaining wall 13; Twisted foot 14; Root part 141; Twisted part 142; Concave part 143. Specific embodiments

[0028] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] The present utility model provides a narrow-bezel liquid crystal display screen without a backlight adhesive frame, which includes an iron frame, a reflective sheet, a light guide plate, an optical film group, a high-transparency protective film, a light-shielding adhesive, and a display module. The iron frame includes a bottom plate and side walls extending upward from the edge of the bottom plate; the reflective sheet is disposed on the upper surface of the bottom plate; the light guide plate is disposed above the reflective sheet; the optical film group is disposed above the light guide plate; the high-transparency protective film is disposed above the optical film group, and the high-transparency protective film extends to the upper surface of the side walls, and the high-transparency protective film is fixedly adhered to the side walls through a double-sided adhesive; the light-shielding adhesive is disposed above the high-transparency protective film in the non-display area; and the display module is disposed above the light-shielding adhesive.

[0032] Since a high-transparency protective film is disposed above the optical film group, this protective film has high transparency and does not affect the display effect of the liquid crystal display screen. After the high-transparency protective film is tensioned, it is flush with the upper surface of the side walls, and then the light-shielding adhesive can be fixedly adhered to the high-transparency protective film through a double-sided adhesive, so that the light-shielding adhesive still has sufficient space to be fixed without a backlight adhesive frame, thereby enabling the liquid crystal display module and the backlight module to be fixedly adhered through the light-shielding adhesive.

[0033] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings. The following describes the present utility model in detail with reference to the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0034] Please refer to Figure 1 , which is a narrow-bezel liquid crystal display screen without a backlight adhesive frame provided by the present utility model. It includes an iron frame 1, a reflective sheet 2, a light guide plate 3, an optical film group 4, a high-transparency protective film 5, a light-shielding adhesive 6, and a display module 7. The iron frame 1 includes a bottom plate 11 and side walls 12, and the side walls 12 are formed by extending upward from the edge of the bottom plate 11; the reflective sheet 2 is disposed on the upper surface of the bottom plate 11; the light guide plate 3 is disposed above the reflective sheet 2; the optical film group 4 is disposed above the light guide plate 3; the high-transparency protective film 5 is disposed above the optical film group 4, and the high-transparency protective film 5 extends to the upper surface of the side walls 12. The high-transparency protective film 5 is fixedly adhered to the side walls 12 through a double-sided adhesive 8. In this embodiment, the double-sided adhesive 8 is disposed on the upper surface of the side walls 12, so that the bezel is narrower, but the overall thickness is higher; the light-shielding adhesive 6 is disposed above the high-transparency protective film 5 located in the non-display area; the display module 7 is disposed above the light-shielding adhesive 6. Since the high-transparency protective film 5 is disposed above the optical film group 4, this protective film has high transparency and will not affect the display effect of the liquid crystal display screen, and the thickness of the high-transparency protective film 5 can be made very thin, and basically does not increase the thickness of the liquid crystal display screen. After the high-transparency protective film 5 is tensioned, it is flush with the upper surface of the side walls 12, and then the light-shielding adhesive 6 can be fixedly adhered to the high-transparency protective film 5 through the double-sided adhesive 8, so that the light-shielding adhesive 6 still has enough space to be fixed without a backlight adhesive frame, so that the liquid crystal display module 7 and the backlight module can be fixedly adhered through the light-shielding adhesive 6.

[0035] Please refer to Figure 2 , as a further optimized solution of Embodiment 1, in this embodiment, the high-transparency protective film 5 extends and bends to the outer side of the side walls 12, and the high-transparency protective film 5 is fixedly adhered to the outer side of the side walls 12 through a double-sided adhesive 8, that is, the outer shape of the high-transparency protective film 5 is larger than the outer shape of the backlight module. The high-transparency protective film 5 that exceeds the outer shape of the backlight module bends to the outer side of the side walls 12 and is fixed to the outer side of the side walls 12 through the double-sided adhesive 8. The edge of the high-transparency protective film 5 and the liquid crystal display module 7 can be fixedly adhered by adding the light-shielding adhesive 6, so that the overall thickness is lower, but the bezel is slightly larger.

[0036] Please refer to Figure 3, Further, a semi - tangent line 51 is provided at the bent portion of the high - transparency protective film 5, which facilitates the bending of the high - transparency protective film 5 and enables it to be more firmly fixed to the backlight module.

[0037] Please refer to Figures 4 to 6 , As a further optimized solution of Embodiment 1, in this embodiment, a PCB board 9 is provided below the bottom plate 11. At least one retaining wall 13 is stamped at the top and bottom of the lower surface of the bottom plate 11. The retaining wall 13 is perpendicular to the bottom plate 11. At least one torsion foot 14 is stamped on the left and right sides of the lower surface of the bottom plate 11. In this embodiment, there are four retaining walls 13, with two retaining walls 13 provided at the top and bottom of the bottom plate 11 respectively, and there are four torsion feet 14, with two torsion feet 14 provided on the left and right sides of the bottom plate 11 respectively. In other embodiments, the number and position of the torsion feet 14 only need to be evenly distributed to achieve the limiting and fixing effects. The torsion feet 14 can rotate, and the PCB board 9 is placed in the space defined by the retaining walls 13 and the torsion feet 14. Since at least one retaining wall 13 is stamped at the top and bottom of the lower surface of the bottom plate 11, and at least one torsion foot 14 is stamped on the left and right sides of the lower surface of the bottom plate 11, the torsion feet 14 and the retaining walls 13 are provided on the rear iron frame 1 by means of die stamping. The PCB board 9 is limited by the retaining walls 13, and the PCB board 9 is fixed by rotating the torsion feet 14. This can improve the assembly reliability of the PCB board 9 and prevent the PCB board 9 from falling off without affecting the cost.

[0038] Further, the width of the retaining wall 13 is 8 mm to 12 mm. The assembly gap between the retaining wall 13 and the PCB board 9 is 0.3 mm to 0.5 mm. The height of the retaining wall 13 is the same as the thickness of the PCB board 9.

[0039] Further, in order to enable the torsion feet 14 to best match the PCB board 9 and be bent and fixed, the cross - sectional shape of the torsion feet 14 is L - shaped. The torsion feet 14 include a root portion 141 and a torsion portion 142. The root portion 141 is connected to the bottom plate 11, and the torsion portion 142 is connected to the root portion 141.

[0040] Further, the width of the root portion 141 of the torsion feet 14 is 4 mm to 6 mm to ensure that the root portion 141 has sufficient strength.

[0041] Further, the width of the torsion portion 142 of the torsion feet 14 is 4 mm to 6 mm to ensure that the torsion feet 14 have sufficient length to press on the PCB board 9 after being bent. The assembly gap between the torsion portion 142 and the PCB board 9 is 0.3 mm to 0.5 mm.

[0042] Please refer to Figure 7 , As a further optimized solution of Embodiment 1, in this embodiment, a concave portion 143 is provided at the inner connection of the root portion 141 and the torsion portion 142. The concave portion 143 has a smooth transition to avoid stress concentration.

[0043] Furthermore, the depth of the concave portion 143 is 0.5 mm to 1.0 mm, and the distance between the deepest point of the concave portion 143 and the lower surface of the root portion 141 is 1.5 mm to 2.5 mm. This is to avoid the problem that the width at this position is too thin during bending and twisting, which may easily cause the breakage of the twisted leg 14. The assembly gap between the twisted leg 14 and the PCB board 9 is 0.3 mm to 0.5 mm.

[0044] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of them. The preferred embodiments of the present application are shown in the drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields shall be within the scope of the patent protection of the present application by the same token.

Claims

1. A narrow-frame liquid crystal display screen without a backlight plastic frame, characterized in that: It includes: An iron frame, comprising a bottom plate and side walls extending upward from the edge of the bottom plate; A reflective sheet, which is arranged on the upper surface of the bottom plate; A light guide plate, which is arranged above the reflective sheet; An optical film group, which is arranged above the light guide plate; A high-transmittance protective film is disposed above the optical film assembly, the high-transmittance protective film extends to the upper surface of the side wall, and the high-transmittance protective film is fixed to the side wall by double-sided adhesive; A light shielding glue is arranged above the high-transmittance protective film located in the non-display area; The display module is arranged above the light-shielding glue.

2. The narrow-frame LCD display without backlight plastic frame according to claim 1, characterized in that: The high-transmittance protective film extends and bends to the outer side edge of the side wall, and the high-transmittance protective film is fixed to the outer side edge of the side wall by double-sided adhesive.

3. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 2, characterized in that: A half-cut line is arranged at the bending position of the high-transmittance protective film.

4. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 1, characterized in that: A PCB board is arranged below the base plate, at least one retaining wall is stamped on the top and bottom of the lower surface of the base plate, the retaining wall is perpendicular to the base plate, at least one twist foot is stamped on the left and right sides of the lower surface of the base plate, the twist foot is rotatable, and the PCB board is placed in the space defined by the retaining wall and the twist foot.

5. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 4, characterized in that: The width of the retaining wall is 8 mm to 12 mm.

6. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 4, characterized in that: The assembly gap between the retaining wall and the PCB board is 0.3 mm to 0.5 mm.

7. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 4, characterized in that: The cross-sectional shape of the twist foot is L-shaped, and the twist foot comprises a root portion connected to the base plate and a twist portion connected to the root portion.

8. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 7, characterized in that: The root width of the twist foot is 4mm to 6mm.

9. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 7, characterized in that: An inner concave portion is provided at the connection between the root portion and the inner side of the twist portion.

10. The narrow-framed liquid crystal display screen without backlight glue frame according to claim 9, characterized in that: The inner concave portion has a smooth transition.

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