Display module

By adding a light-shielding adhesive layer, an optical adhesive layer, and a dispensing layer between the backlight module and the LCD display unit, the problem of separation between the backlight module and the LCD display unit is solved, achieving better adhesion, preventing light leakage, and improving product quality.

CN223711969UActive Publication Date: 2025-12-23TRULY OPTO ELECTRONICS
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Patent Information

Application Number
CN202520322228.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2025-12-23
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

After prolonged use or stress, the adhesive strength of the light-shielding adhesive in existing backlight display modules weakens, causing the backlight module to separate from the LCD display unit, resulting in light leakage or foreign matter entering, which affects the display effect.

Method used

A structure is added between the backlight module and the LCD display unit, consisting of a light-shielding adhesive layer, an optical adhesive layer, and a dispensing layer. The dispensing layer is arranged around the side of the lower polarizer and connects the light-shielding adhesive layer to the back of the cover plate, thereby enhancing the bonding strength.

Benefits of technology

It effectively prevents light leakage, enhances the adhesion between the backlight module and the LCD display unit, and improves product quality and market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a display module, which comprises a backlight iron stand, a backlight module, a light guide plate, a light guide plate and a light guide plate, the shading glue layer is arranged on one side, opposite to the backlight iron stand, of the backlight module; the lower layer of the LCD display unit comprises a lower polaroid, and the upper layer of the LCD display unit comprises an upper polaroid; the lower polaroid is attached to the shading glue layer; an optical adhesive layer is arranged on one side, back to the backlight module, of the upper polaroid; a cover plate is arranged on one side, opposite to the upper polaroid, of the optical adhesive layer; the dispensing layer is annularly arranged on the side surface of the lower polaroid; the dispensing layer is connected with the shading glue layer and the back of the cover plate. The viscosity of the backlight module and the LCD display unit is improved, and light leakage is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field, in particular to a display module. BACKGROUND

[0002] The existing backlight display module is assembled below the lower polarizing plate of the LCD display unit, and the backlight module is used to provide light source for the display module. Although the uppermost layer of the backlight module is provided with light shielding glue and the lower polarizing plate is bonded and the backlight film material light scattering is shielded. But after long time RA test or whole machine drum, falling experiment, the LCD display unit and the backlight module only rely on the light shielding glue adhesion, and the light shielding glue adhesion is easy to weaken and peel off, and the backlight module and the LCD display unit are separated, thereby light leakage or foreign matter enters the backlight viewing area, and the display module appears black point display defect, which affects the use of electronic equipment.

[0003] How to solve the above technical problems has become a technical problem to be solved in the industry. SUMMARY

[0004] In order to solve at least the above technical problems, the purpose of the utility model is to provide a display module, which improves the adhesion of the backlight module and the LCD display unit and prevents light leakage.

[0005] In order to achieve the above purpose, the display module provided by the utility model comprises:

[0006] The backlight iron stand is provided with a backlight module in the backlight iron stand;

[0007] The light shielding glue layer is arranged on the side of the backlight module away from the backlight iron stand;

[0008] The LCD display unit comprises a lower polarizing plate on the lower layer and an upper polarizing plate on the upper layer;

[0009] The lower polarizing plate is attached to the light shielding glue layer;

[0010] The upper polarizing plate is provided with an optical glue layer on the side away from the backlight module;

[0011] The optical glue layer is provided with a cover plate on the side away from the upper polarizing plate;

[0012] The dispensing layer is annularly arranged on the side surface of the lower polarizing plate;

[0013] The dispensing layer is connected to the back surface of the light shielding glue layer and the cover plate.

[0014] Further, the dispensing layer is attached to the side surface of the LCD display unit;

[0015] The dispensing layer is attached to the side surface of the upper polarizing plate;

[0016] The dispensing layer is attached to the optical adhesive layer.

[0017] Further, the backlight module includes a main screen FPC, and the main screen FPC includes a bending area.

[0018] The dispensing area is annularly arranged on the non-bending area of the side surface of the backlight module.

[0019] Further, the dispensing area is provided with dark glue.

[0020] Further, the dark glue is black glue.

[0021] Further, the width of the dispensing area is 0.18-0.22 mm.

[0022] Further, the main screen FPC is provided with a component placement area, and the component placement area is provided with components.

[0023] Further, the components include resistors and capacitors.

[0024] Further, the main screen FPC is further provided with a connector.

[0025] Further, the dispensing area is C-shaped on the back of the cover plate.

[0026] The display module of the embodiment of the application comprises: a backlight frame, a backlight module arranged in the backlight frame; a light-shielding glue layer arranged on the side of the backlight module away from the backlight frame; an LCD display unit, the lower layer of the LCD display unit comprising a lower polarizer, and the upper layer of the LCD display unit comprising an upper polarizer; the lower polarizer being attached to the light-shielding glue layer; the side of the upper polarizer away from the backlight module being provided with an optical glue layer; the side of the optical glue layer away from the upper polarizer being provided with a cover plate; a dispensing layer annularly arranged on the side surface of the lower polarizer; and the dispensing layer connecting the light-shielding glue layer and the back of the cover plate. The adhesion between the backlight module and the LCD display unit is improved, and light leakage is prevented, thereby improving product quality and market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the application and constitute a part of the specification, and together with the embodiments of the application, serve to explain the application, and do not constitute a limitation on the application. In the drawings:

[0028] Figure 1 is a display module structure schematic diagram of the embodiment of the application;

[0029] Figure 2 is a backlight module structure schematic diagram of the embodiment of the application.

[0030] Marked in the drawings:

[0031] 101-cover plate; 102-optical glue layer; 103-upper polarizer; 104-LCD display unit; 105-lower polarizer; 106-light shielding glue layer; 107-upper brightness enhancement film; 108-lower brightness enhancement film; 109-diffusion film; 110-light guide plate; 111-reflective film; 112-backlight iron stand; 113-glue dispensing layer; 201-backlight module; 202-main screen FPC; 203-bending area; 204-component placement area; 205-connector. DETAILED DESCRIPTION

[0032] Embodiments of the present application will be described in more detail with reference to the drawings. While certain embodiments of the application are shown in the drawings, it is understood that the application can be embodied in various forms and should not be construed as being limited to the embodiments set forth in the drawings. Rather, these embodiments are provided so that the application will be thorough and complete, and fully convey the scope of the application to those skilled in the art. It is understood that the drawings and embodiments of the application are for illustrative purposes only and are not intended to limit the scope of the application.

[0033] It should be understood that the various steps of the method embodiments of the present application can be performed in different orders and / or in parallel. In addition, the method embodiments can include additional steps and / or omit performing the steps shown. The scope of the present application is not limited in this respect.

[0034] The term "comprising" and variations thereof as used in the present application are open-ended, that is, "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions will be given in the description below.

[0035] It should be noted that the modification of "one", "a plurality of" mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more". "A plurality" should be understood as two or more.

[0036] Embodiments of the present application will be described in detail below with reference to the drawings.

[0037] The display module provided by the embodiments of the present application comprises:

[0038] The backlight iron stand is provided with the backlight module inside;

[0039] The light shielding glue layer is arranged on the side of the backlight module away from the backlight iron stand;

[0040] The LCD display unit comprises a lower layer comprising a lower polarizer and an upper layer comprising an upper polarizer.

[0041] The lower polarizer is attached to the light-shielding adhesive layer;

[0042] The upper polarizer is provided with an optical adhesive layer on the side away from the backlight module;

[0043] The optical adhesive layer is provided with a cover plate on the side away from the upper polarizer;

[0044] The dispensing layer is arranged around the side of the lower polarizer;

[0045] The dispensing layer connects the back of the light-shielding adhesive layer and the cover plate.

[0046] Embodiment 1

[0047] Figure 1 is a display module structure schematic diagram of the embodiment of the present application, Figure 2 is a backlight module structure schematic diagram of the embodiment of the present application, and the following will be described in detail Figures 1-2 , the display module of the embodiment of the present application.

[0048] In an exemplary embodiment, the display module of the embodiment of the present application comprises a backlight frame 112.

[0049] In an exemplary embodiment, the backlight frame 112 is provided with a backlight module 201.

[0050] In an exemplary embodiment, the display module of the embodiment of the present application further comprises a light-shielding adhesive layer 106.

[0051] In an exemplary embodiment, the light-shielding adhesive layer 106 is arranged on the side of the backlight module 201 away from the backlight frame 112.

[0052] In an exemplary embodiment, the display module of the embodiment of the present application further comprises an LCD display unit 104.

[0053] In an exemplary embodiment, the lower layer of the LCD display unit 104 comprises a lower polarizer 105.

[0054] In an exemplary embodiment, the upper layer of the LCD display unit 104 comprises an upper polarizer 103.

[0055] In an exemplary embodiment, the lower polarizer 105 is attached to the light-shielding adhesive layer 106.

[0056] In an exemplary embodiment, the upper polarizer 103 is arranged in parallel with the lower polarizer 105.

[0057] In an exemplary embodiment, the upper polarizer 103 is provided with an optical adhesive layer 102 on the side away from the backlight module 201.

[0058] In an exemplary embodiment, the optical adhesive layer 102 is provided with a cover plate 101 on the side facing away from the upper polarizer 103.

[0059] In an exemplary embodiment, the cover plate 101 is a transparent glass cover plate.

[0060] In an exemplary embodiment, the display module of the present application further comprises a dispensing layer 113.

[0061] In an exemplary embodiment, the dispensing layer 113 is annularly arranged on the side of the lower polarizer 105.

[0062] In an exemplary embodiment, the dispensing layer 113 connects the light-shielding adhesive layer 106 and the back of the cover plate 101.

[0063] In an exemplary embodiment, the dispensing layer 113 is attached to the side of the LCD display unit 104.

[0064] In an exemplary embodiment, the dispensing layer 113 is attached to the side of the upper polarizer 103.

[0065] In an exemplary embodiment, the dispensing layer 113 is attached to the optical adhesive layer 102.

[0066] In an exemplary embodiment, the optical adhesive layer 102 is composed of OCA optical adhesive.

[0067] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0068] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0069] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0070] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0071] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0072] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0073] In an exemplary embodiment, the backlight module 201 comprises a reflective film 111 attached to the inner side of the backlight iron stand 112.

[0074] In an exemplary embodiment, the main screen FPC 202 comprises a bending area 203.

[0075] In an exemplary embodiment, the dispensing area is annularly arranged on the non-bending area 203 of the side surface of the backlight module 201.

[0076] In an exemplary embodiment, the dispensing area is provided with dark glue.

[0077] In an exemplary embodiment, the dark glue is black glue.

[0078] In an exemplary embodiment, the glue is, for example, black opaque glue of Wilbond DP421-1 or Absonic APS-6190, and black is selected to shield light.

[0079] In an exemplary embodiment, the width of the dispensing area is 0.18-0.22 mm.

[0080] In an exemplary embodiment, the main screen FPC 202 is provided with a component placement area 204.

[0081] In an exemplary embodiment, the component placement area 204 is provided with components.

[0082] In an exemplary embodiment, the components include resistors and capacitors.

[0083] In an exemplary embodiment, the main screen FPC 202 is further provided with a connector 205.

[0084] In an exemplary embodiment, the dispensing area is C-shaped on the back of the cover plate 101.

[0085] Although the embodiments disclosed by the present application are as above, the content is only the adopted embodiments for facilitating the understanding of the present application, and is not used to limit the present application. Any person skilled in the art of the present application, without departing from the spirit and scope of the present application disclosed, can make any modification and change in the implementation form and details, but the patent protection scope of the present application shall be subject to the range defined by the appended claims.

Claims

1. A display module, characterized in that, include: A backlight frame, wherein a backlight module is installed inside the backlight frame; A light-shielding adhesive layer is disposed on the side of the backlight module facing away from the backlight frame; The LCD display unit includes a lower polarizer and an upper polarizer. The lower polarizer is bonded to the light-shielding adhesive layer; The upper polarizer has an optical adhesive layer on the side facing away from the backlight module; The optical adhesive layer is provided with a cover plate on the side facing away from the upper polarizer; A dispensing layer, wherein the dispensing layer is arranged around the side of the lower polarizer; The dispensing layer connects the light-shielding adhesive layer to the back of the cover plate.

2. The display module according to claim 1, characterized in that, The adhesive layer is bonded to the side of the LCD display unit; The adhesive layer is bonded to the side of the upper polarizer; The dispensing layer is bonded to the optical adhesive layer.

3. The display module according to claim 2, characterized in that, The backlight module includes a main screen FPC, and the main screen FPC includes a bending area; The dispensing area is arranged in a ring shape on the side of the backlight module, excluding the bending area.

4. The display module according to claim 1, characterized in that, The dispensing area is equipped with dark-colored adhesive.

5. The display module according to claim 4, characterized in that, The dark-colored glue is black glue.

6. The display module according to claim 1, characterized in that, The width of the dispensing area is 0.18mm-0.22mm.

7. The display module according to claim 3, characterized in that, The main screen FPC has a component placement area, and the component placement area has components.

8. The display module according to claim 7, characterized in that, The components include resistors and capacitors.

9. The display module according to claim 7, characterized in that, The main screen FPC is also equipped with a connector.

10. The display module according to claim 1, characterized in that, The dispensing area is C-shaped on the back of the cover plate.