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CN-224232074-U - Backlight module capable of preventing glue overflow and liquid crystal display device

CN224232074UCN 224232074 UCN224232074 UCN 224232074UCN-224232074-U

Abstract

The present application relates to the field of display technologies, and in particular, to a backlight module capable of preventing glue overflow and a liquid crystal display device. The backlight module capable of preventing glue overflow comprises a backlight iron frame, a backlight assembly is arranged in the backlight iron frame, a groove which surrounds the backlight iron frame is formed in the upper surface of the backlight iron frame, the distance between the groove and the inner wall of the backlight iron frame is not less than 2mm, and the distance between the groove and the outer wall of the backlight iron frame is greater than the horizontal distance between a cover plate of a liquid crystal display screen and the outer wall of the backlight iron frame. The backlight module for preventing glue overflow can prevent glue overflow from occurring when the backlight module is attached to a display screen.

Inventors

  • Lu Benjin

Assignees

  • 信利半导体有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (10)

  1. 1. The utility model provides a prevent backlight unit of glue overflow, its characterized in that, includes the iron frame that is shaded, be provided with the subassembly that is shaded in the iron frame that is shaded, the upper surface of iron frame that is shaded is provided with around the recess of iron frame that is shaded, the recess with the distance of the inner wall of iron frame that is shaded is not less than 2mm, the recess with the distance between the outer wall of iron frame that is shaded is greater than the horizontal distance between the apron of LCD screen and the outer wall of iron frame that is shaded.
  2. 2. The backlight module for preventing glue overflow as defined in claim 1, wherein the width of the groove is 0.6-1.0mm.
  3. 3. The backlight module for preventing glue overflow as defined in claim 1, wherein the depth of the groove is 0.6-1.0mm.
  4. 4. The backlight module for preventing glue overflow as defined in claim 1, wherein the cross section of the groove is any one of rectangle, semicircle, trapezoid and triangle.
  5. 5. The backlight module for preventing glue overflow as defined in claim 1, wherein the bottom of the groove is provided with an arc edge.
  6. 6. The backlight module for preventing glue overflow according to claim 1, wherein the difference between the distance between the groove and the outer wall of the backlight frame and the horizontal distance between the cover plate of the liquid crystal display screen and the outer wall of the backlight frame is not less than 0.5mm.
  7. 7. The glue overflow preventing backlight module of claim 6, wherein the backlight bezel comprises any one of a rectangular bezel and a circular bezel.
  8. 8. The backlight module according to claim 1, wherein the backlight assembly comprises a reflective film, a light guide plate, a diffusion film, a lower brightness enhancement film and an upper brightness enhancement film sequentially stacked in the backlight frame.
  9. 9. The glue overflow preventing backlight module of claim 8, wherein the reflective film extends to a wall of the backlight frame.
  10. 10. A liquid crystal display device, comprising: the backlight module for preventing glue overflow according to any one of claims 1-9; and the liquid crystal display screen is fixedly attached to the backlight module through RTV glue.

Description

Backlight module capable of preventing glue overflow and liquid crystal display device Technical Field The present application relates to the field of display technologies, and in particular, to a backlight module capable of preventing glue overflow and a liquid crystal display device. Background The backlight module is a key component of the display device and has the main function of providing uniform and stable backlight illumination for the liquid crystal display screen and ensuring that the screen can clearly display contents under various illumination conditions. The backlight module is generally composed of a backlight iron frame, a backlight source, a light guide plate, a reflecting sheet, an optical film layer and the like, wherein the backlight source, the light guide plate, the reflecting sheet, the optical film layer and the like are arranged in the backlight iron frame, and the backlight module and the liquid crystal display screen are fixed and attached by using RTV glue to form the liquid crystal display device. When backlight unit and LCD paste, carry out RTV earlier and glue after the point is glued, then carry out the pressurize, then when carrying out the pressurize, often can have the glue to spill out the condition of apron, need expend the manpower to wipe out the glue that spills over, influence laminating efficiency, when erasing glue simultaneously, cause the damage to frame outward appearance image layer easily. Disclosure of utility model In order to solve the defects in the prior art, the application aims to provide a backlight module capable of preventing glue overflow and a liquid crystal display device, and the glue overflow is prevented when the backlight module is attached to a display screen. In order to achieve the above object, the present application provides a backlight module for preventing glue overflow, comprising: The liquid crystal display device comprises a backlight iron frame, wherein a backlight assembly is arranged in the backlight iron frame, a groove surrounding the backlight iron frame is formed in the upper surface of the backlight iron frame, the distance between the groove and the inner wall of the backlight iron frame is not smaller than 2mm, and the distance between the groove and the outer wall of the backlight iron frame is larger than the horizontal distance between a cover plate of a liquid crystal display screen and the outer wall of the backlight iron frame. As a further optimization mode of the backlight module for preventing glue overflow, the width of the groove is 0.6-1.0mm. As a further optimization mode of the backlight module for preventing glue overflow, the depth of the groove is 0.6-1.0mm. As a further optimization mode of the backlight module for preventing glue overflow, the cross section of the groove is any one of rectangle, semicircle, trapezoid and triangle. As a further optimization mode of the backlight module for preventing glue overflow, the bottom of the groove is provided with an arc edge. As a further optimization mode of the backlight module for preventing glue overflow, the difference between the distance between the groove and the outer wall of the backlight iron frame and the horizontal distance between the cover plate of the liquid crystal display screen and the outer wall of the backlight iron frame is not smaller than 0.5mm. As a further optimization mode of the backlight module for preventing glue overflow, the backlight iron frame comprises any one of a rectangular iron frame and a round iron frame. As a further optimization mode of the backlight module capable of preventing glue overflow, the backlight module comprises a reflecting film, a light guide plate, a diffusion film, a lower brightness enhancement film and an upper brightness enhancement film which are sequentially stacked in the backlight iron frame. As a further optimization mode of the backlight module for preventing glue overflow, the reflecting film extends to the frame wall of the backlight iron frame. In order to achieve the above object, the present application also provides a liquid crystal display device including: the backlight module for preventing glue overflow is provided; and the liquid crystal display screen is fixedly attached to the backlight module through RTV glue. The backlight module for preventing glue overflow has the following beneficial effects: According to the backlight module capable of preventing glue overflow, the grooves are formed in the specific positions of the backlight iron frame, so that RTV glue cannot overflow out of the backlight iron frame during lamination, staff is prevented from erasing glue overflow, and lamination efficiency is improved. Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Drawings The accompanying drawings are included to provide a further u