Display module for preventing light blocking problem at IR hole

Abstract

The utility model discloses a display module capable of preventing light blocking at an IR hole, which comprises a cover plate, an LCD module and a backlight module which are sequentially stacked, the IR hole is formed on the cover plate, a groove corresponding to the IR hole is formed on the side surface of the backlight module, the depth of the groove is 0.1 mm-0. 2mm, the length of the groove is larger than that of the IR hole, and the length of the LCD module is larger than that of the IR hole. Shading glue is attached to the positions, corresponding to the IR holes, of the display module, the shading glue is attached to the bottom face and the side face of the backlight module, the side face of the LCD module and the cover plate, and the shading glue is correspondingly located in a groove in the side face of the backlight module. The backlight module and the LCD module have the advantages that the side face of the backlight module can be basically flush with the side face of the LCD module at the attaching position of the shading glue, so that the shading glue is not prone to rebounding and warping, and the risk of polluting IR holes and the risk of blocking the IR holes in the process of attaching the shading glue to a module factory can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and in particular to a display module for preventing light blocking problems from occurring at IR holes. Background Art

[0002] With the popularity of narrow-framed mobile phones, mobile phone manufacturers have increasingly narrowed the requirements for screen frame design, resulting in the corresponding distance from the IR hole of the display module cover to the edge of the backlight module being compressed to the limit, making the distance between the light-shielding glue (light-shielding Mylar) attached to the side of the backlight module to prevent light leakage at the IR hole extremely small from the IR hole. Under the commonly used design, the backlight module is designed with a straight edge near the IR hole, and the corresponding distance from the IR hole to the edge of the backlight module is only 0.1mm, and the corresponding distance from the outer side of the light-shielding glue is 0.07mm. Therefore, the IR hole is very close to the light-shielding glue. During the production process of the display module, the light-shielding glue will bend in an S shape when it is pasted inward, and it will not completely stick to the side of the LCD, and there is a risk of rebound and warping. In addition, the residual light-shielding glue is easy to contaminate the IR hole during the process of the module factory attaching the light-shielding Mylar. At the same time, if the attachment tolerance is large, it is easy to block the IR hole, resulting in a decrease in the photosensitivity of the entire machine and affecting user use. It can be seen that when the module factory is producing and attaching shading glue, it is easy to block the IR hole and cause the residual shading glue to contaminate the IR hole, which affects the product yield and customer satisfaction.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a display module that prevents the problem of light blocking at the IR hole.

[0005] The technical solution of the utility model is as follows: The utility model provides a display module for preventing light blocking problems at an IR hole, comprising: a cover plate, an LCD module and a backlight module which are stacked in sequence, an IR hole being formed on the cover plate, a groove being formed on the side of the backlight module corresponding to the IR hole, the depth of the groove being 0.1mm-0.2mm, the length of the groove being longer than the length of the IR hole, a light-shielding glue being attached to the display module at the position corresponding to the IR hole, the light-shielding glue being attached to the bottom and side of the backlight module, the side of the LCD module and the cover plate, and the light-shielding glue being correspondingly located in the groove on the side of the backlight module.

[0006] Furthermore, the depth of the groove is 0.15 mm.

[0007] Furthermore, the thickness of the light-shielding glue is 0.03 mm.

[0008] Furthermore, the groove is wider at the top and narrower at the bottom.

[0009] By adopting the above scheme, the beneficial effect of the utility model is that the attachment point of the light-shielding glue can achieve that the side of the backlight module is basically flush with the side of the LCD module, so that the light-shielding glue is not easy to rebound and warp, and the risk of contaminating the IR hole and blocking the IR hole during the process of attaching the light-shielding glue in the module factory can be reduced, thereby improving the product pass rate and saving rework costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0011] Figure 2 It is a schematic structural diagram of a groove of an embodiment of the utility model.

[0012] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Please refer to Figures 1 to 3 In this embodiment, the utility model provides a display module for preventing light blocking problems at an IR hole, comprising: a cover plate 1, an LCD module 2 and a backlight module 3 which are stacked in sequence, an IR hole 11 being formed on the cover plate 1, a groove 31 being formed on the side of the backlight module 2 corresponding to the IR hole 11, the depth of the groove 31 being 0.1 mm-0.2 mm, 0.15 mm in this embodiment, the length of the groove 31 being longer than the length of the IR hole 11, a light shielding glue 4 with a thickness of 0.03 mm being attached to the display module 1 at a position corresponding to the IR hole 11, the light shielding glue 4 being attached to the bottom and side surfaces of the backlight module 1, the side surfaces of the LCD module 2 and the cover plate 1, and the light shielding glue 4 being correspondingly located in the groove 31 on the side surface of the backlight module 3.

[0015] Furthermore, the groove 31 is wide at the top and narrow at the bottom, and is in the form of a rectangular groove, which can facilitate positioning when the light-shielding adhesive 4 is attached.

[0016] Please continue to refer to Figures 1 to 3 In this solution, a groove 31 is provided on the side of the backlight module 3, so that the light-shielding glue 4 is attached to the bottom surface of the groove 31 at the side of the backlight module 1, so that the light-shielding glue 4 is farther away from the edge of the corresponding IR hole 11 after being attached, thereby avoiding problems such as overflow and warping of the light-shielding glue 4 affecting the subsequent function of the whole machine.

[0017] To sum up, the beneficial effect of this solution is that the attachment point of the light-shielding glue can make the side of the backlight module basically flush with the side of the LCD module, making it difficult for the light-shielding glue to rebound and warp, and can reduce the risk of contaminating the IR hole and blocking the IR hole during the process of attaching the light-shielding glue by the module factory, thereby improving the product pass rate and saving rework costs.

[0018] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display module for preventing light blocking at an IR hole, characterized in that: include: A cover plate, an LCD module and a backlight module are stacked in sequence, an IR hole is formed on the cover plate, a groove is formed on the side of the backlight module corresponding to the IR hole, the depth of the groove is 0.1mm-0.2mm, and the length of the groove is longer than the length of the IR hole, and a light-shielding glue is attached to the display module at the position corresponding to the IR hole, the light-shielding glue is attached to the bottom and side of the backlight module, the side of the LCD module and the cover plate, and the light-shielding glue is located correspondingly in the groove on the side of the backlight module.

2. The display module for preventing light blocking at the IR hole according to claim 1, characterized in that: The depth of the groove is 0.15 mm.

3. The display module for preventing light blocking at the IR hole according to claim 2, characterized in that: The thickness of the light-shielding glue is 0.03 mm.

4. The display module for preventing light blocking at the IR hole according to any one of claims 1 to 3, characterized in that: The groove is wide at the top and narrow at the bottom.

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