Patent ID: 11927843
Assignee: HKC CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A backlight module, comprising a back plate and a plurality of light plates arranged on the back plate, wherein a seam is formed between every two adjacent light plates; wherein the back plate comprises:
a plurality of grooves, which are defined in a side of the back plate facing the plurality of light plates and which do not penetrate through the back plate; and
a plurality of clamping holes, each of which comprising a sink hole and a through hole that are vertically coupled, wherein the sink hole is defined in a side of the back plate facing the plurality of light plates, a depth of the sink hole is equal to a depth of the respective groove, and a side wall of the sink hole is connected with the respective groove; wherein the through hole is defined in a side of the back plate facing away from the plurality of light plates, and wherein a cross-sectional dimension of the through hole is less than a cross-sectional dimension of the sink hole;
wherein the backlight module further comprises a framework assembly, which is integrally formed as one piece and is injection-molded on the back plate, wherein a material of the framework assembly further comprises a reflective material; wherein the framework assembly comprises:
a plurality of support rods, which are arranged in an array on the back plate and disposed corresponding to four corners of each of the plurality of light plates, and are connected to the back plate; wherein each support rod comprises a first clamping portion, a transition portion, a second clamping portion, and a bearing portion that are successively connected to each other; wherein a cross-sectional dimension of the first clamping portion is greater than a cross-sectional dimension of the through hole, and the first clamping portion is connected to the side of the back plate facing away from the plurality of light plates; wherein a cross-section of the second clamping portion corresponds to a cross-section of the sink hole, and the second clamping portion is arranged on the side of the back plate facing towards the plurality of light plates, and wherein the second clamping portion is clamped with a bottom of the respective sink hole; wherein a shape of the transition portion corresponds to and is congruent with a shape of the through hole, and wherein both ends of the transition portion are respectively connected to the first clamping portion and the second clamping portion; wherein the bearing portion is disposed at an end of the respective second clamping portion away from the respective first clamping portion;
a plurality of frame rods, matched and fitted with the plurality of grooves in one-to-one correspondence, wherein one end of each frame rod is arranged in the respective groove and abuts with a groove bottom of the groove; and wherein a hook formed of an elastic material is disposed at another end of the frame rod, and is snap-fitted with the side of the respective light plate facing away from the back plate; wherein sidewalls of two adjacent second clamping portions are connected to each other by one of the plurality of frame rods.