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CN-224216969-U - Backlight module, display device and notebook computer

CN224216969UCN 224216969 UCN224216969 UCN 224216969UCN-224216969-U

Abstract

The application discloses a backlight module, a display device and a notebook computer, and belongs to the technical field of display. The backlight module comprises a frame body, a light source component and a support protection part. The light source in the light source component can be tightly attached to the light guide plate under the action of the supporting and protecting part, namely the light emitting surface of the light source can be tightly attached to the side surface of the light guide plate. Therefore, even after the display device provided with the backlight module falls, the light source and the light guide plate cannot move relatively, so that the linearity and the elevation angle of the light source cannot change, and the light emitted by the light source can be uniformly guided into the light guide plate, and the uniformity of light emitted by the backlight module is ensured.

Inventors

  • ZHU JIANXIN

Assignees

  • 北京小米移动软件有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (13)

  1. 1. A backlight module is characterized by comprising a frame body (100), a light source component (200) and a support protection part (300); The frame (100) comprises a bottom plate (101) and a side plate (102) connected with the outer edge of the bottom plate (101); The light source component (200) is positioned in an area surrounded by the side plates (102), and the light source component (200) comprises a side-in light source (201), a light guide plate (202) and an optical film (203), wherein the light emitting surface of the light source (201) faces to the side surface of the light guide plate (202), and the optical film (203) is positioned on one side of the light guide plate (202) away from the bottom plate (101); The support protection part (300) at least covers one side of the light source (201) facing away from the light guide plate (202) and one side of the light source (201) facing away from the bottom plate (101).
  2. 2. The backlight module according to claim 1, wherein the light source (201) comprises a light bar circuit board (2011) and a plurality of light emitting units (2012), wherein the light bar circuit board (2011) is positioned on the bottom plate (101), the plurality of light emitting units (2012) are all fixed on one side of the light bar circuit board (2011) away from the bottom plate (101), and the arrangement direction of the plurality of light emitting units (2012) is parallel to the extending direction of the light bar circuit board (2011); The support protection part (300) comprises a filling part (301), wherein the filling part (301) covers one side of each light emitting unit (2012) facing away from the light guide plate (202) and one side of each light emitting unit (2012) facing away from the bottom plate (101), and the filling part (301) can be filled between two adjacent light emitting units (2012).
  3. 3. A backlight module according to claim 2, wherein a side of the filling portion (301) facing away from the light source (201) is in direct contact with an inner side surface of the side plate (102).
  4. 4. A backlight module according to claim 2, wherein a gap is provided between the light bar circuit board (2011) and the side plate (102) in a direction perpendicular to the extending direction of the light bar circuit board (2011) and parallel to the bottom plate (101), and the filling portion (301) is further filled into the gap.
  5. 5. A backlight module according to claim 4, wherein the width (D1) of the gap is less than or equal to 0.2 mm.
  6. 6. A backlight module according to any of claims 2-5, wherein the support protection part (300) further comprises a cover part (302), wherein the cover part (302) is connected with the filling part (301), wherein the cover part (302) covers an edge part of the light guide plate (202) close to the light source (201), and wherein the cover part (302) is located at a side of the light guide plate (202) facing away from the bottom plate (101).
  7. 7. The backlight module according to claim 6, further comprising a reflective strip (400), wherein the reflective strip (400) is located at a side close to the light source (201) in the frame (100), and a part of the reflective strip (400) is located between the optical film (203) and the light guide plate (202), and another part is located at a side of the support protection part (300) facing away from the bottom plate (101); Wherein the orthographic projection of the light source (201) on the base plate (101) is located within the orthographic projection of the reflective strip (400) on the base plate (101).
  8. 8. The backlight module according to claim 7, wherein a surface of the cover portion (302) facing away from the filling portion (301) is a supporting inclined surface (P), and an included angle (a) between the supporting inclined surface (P) and a surface of the cover portion (302) facing the light guide plate (202) is an acute angle; The reflection strip (400) comprises a first reflection part (401), a second reflection part (402) and a third reflection part (403) which are connected, wherein the first reflection part (401) is positioned between the optical film (203) and the light guide plate (202), the second reflection part (402) is positioned on the supporting inclined plane (P), and the third reflection part (403) is positioned on one side of the supporting protection part (300) which is away from the bottom plate (101).
  9. 9. A backlight module according to claim 8, wherein the width of the third reflective portion (403) is greater than or equal to the width of the side of the support protection portion (300) facing away from the bottom plate (101) in a direction perpendicular to the extending direction of the light bar circuit board (2011) and parallel to the bottom plate (101).
  10. 10.A backlight module according to any of claims 1-5, 7-9, wherein the portion of the side plate (102) adjacent to the light source (201) is a first side plate portion (1021); Wherein a side of the first side plate portion (1021) facing away from the bottom plate (101) is flush with a side of the support protection portion (300) facing away from the bottom plate (101), or a side of the support protection portion (300) facing away from the bottom plate (101) protrudes from a side of the support protection portion (300) facing away from the bottom plate (101).
  11. 11. A backlight module according to any one of claims 1-5 and 7-9, wherein the support and protection part (300) is a support structure obtained by curing resin glue.
  12. 12. A display device is characterized by comprising the backlight module as claimed in any one of claims 1 to 11 and a liquid crystal display panel positioned on the light emitting side of the backlight module.
  13. 13. A notebook computer comprising the display device according to claim 12.

Description

Backlight module, display device and notebook computer Technical Field The application relates to the technical field of display, in particular to a backlight module, a display device and a notebook computer. Background At present, a display device has become an indispensable electronic product in people's life. Various display devices such as medical display apparatuses, mobile phones, tablet computers, and notebook computers greatly increase convenience of life of people. The liquid crystal display device has the characteristics of small volume, low power consumption, no radiation and the like, and takes the dominant place in the current display market. The liquid crystal display device may include a backlight module and a liquid crystal display panel, the backlight module may include a frame body, and a light source part installed in the frame body, the light source part may emit light for providing light to the liquid crystal display panel. However, when the conventional liquid crystal display device is impacted, the light source component is easy to collide with the frame body, so that the position of the light source component is changed, and further, the light emitted from the light source component to the liquid crystal display panel is uneven, and the display effect of the liquid crystal display device is poor. Disclosure of utility model The embodiment of the application provides a backlight module, a display device and a notebook computer. The problem of prior art's backlight unit after receiving striking light-emitting inhomogeneous can be solved, technical scheme is as follows: In one aspect, a backlight module is provided, including a frame, a light source part, and a support protection part; The frame body comprises a bottom plate and a side plate connected with the outer edge of the bottom plate; The light source component is positioned in an area surrounded by the side plates and comprises a side-in light source, a light guide plate and an optical film, wherein the light emitting surface of the light source faces the side surface of the light guide plate, and the optical film is positioned at one side of the light guide plate, which is away from the bottom plate; the support protection part at least coats one side of the light source, which is away from the light guide plate, and one side of the light source, which is away from the bottom plate. By arranging the support protection part, the light source in the light source part can be tightly attached to the light guide plate under the action of the support protection part, namely the light emitting surface of the light source can be tightly attached to the side surface of the light guide plate. Therefore, even after the display device provided with the backlight module falls, the light source and the light guide plate cannot move relatively, so that the linearity and the elevation angle of the light source cannot change, and the light emitted by the light source can be uniformly guided into the light guide plate, and the uniformity of light emitted by the backlight module is ensured. In some possible implementations, the light source comprises a light bar circuit board and a plurality of light emitting units, wherein the light bar circuit board is positioned on the bottom plate, the plurality of light emitting units are fixed on one side of the light bar circuit board, which is away from the bottom plate, and the arrangement direction of the plurality of light emitting units is parallel to the extension direction of the light bar circuit board; The support protection part comprises a filling part, wherein the filling part covers one side of each light-emitting unit, which is away from the light guide plate, and one side of each light-emitting unit, which is away from the bottom plate, and the filling part can be filled between two adjacent light-emitting units. By providing the filling portion, each light emitting unit in the light source can be wrapped between the filling portion, the light bar circuit board and the light guide plate. Therefore, each light-emitting unit in the light source can be tightly attached to the side face of the light guide plate through the filling part, and the linearity and elevation angle of each light-emitting unit are guaranteed not to be changed. In some possible implementations, a side of the filling portion facing away from the light source is in direct contact with an inner side surface of the side plate. In this way, a filling portion may be filled between the side of the light source facing away from the light guide plate and the side plate. When the display device provided with the backlight module falls, the light source can not move towards the side plate under the action of the filling part, and the light emitting surface of the light source can be always clung to the side surface of the light guide plate. In some possible implementations, in a direction perpendicular to the extending direction of