The utility model relates to a backlight source for an aluminium casting structure, which comprises a FPC plate with LED, a reflective film and a light guide plate mounted on the reflective film, a astigmatism film mounted on the light guide plate, a lower light enhancement film mounted on the astigmatism film, an upper light enhancement film mounted on the lower light enhancement film, a rubber shell mounted on the upper light enhancement film, a surface foam glue mounted on the rubber shell, and a surface through the surface. Surface protective film with double-sided adhesive on the surface of foam gum. Also included are the aluminum castings located under the reflective film. The aluminum castings are surrounded by a double-layer upward stepped bulge wall. On the lower wall, a plurality of upward clamps are symmetrically arranged along the four sides. The clamps match the multiple clamps arranged downward on the four sides of the rubber shell. The diagonal side of the light guide plate is provided with L-type silica gel, and the outer side of L-type silica gel is close to the inner side of the diagonal side of the aluminium casting. The upper retaining wall of aluminium castings is surrounded by the outer side of the rubber shell. The scheme solves the problems of anti-loosening, anti-dust and anti-leakage of backlight of conventional rubber shell and hardware structure.
【技术实现步骤摘要】
一种铝铸件结构的背光源
本技术涉及背光源领域,尤其涉及一种铝铸件结构的背光源。
技术介绍
长期以来,胶壳与五金件为车载背光源产品的两个主要零件,两者共同决定背光源产品的主要尺寸,通常零件组装成成品在尺寸上存在一定的不稳定性。针对这个问题,本技术在常规两件五金件配套结构的前提下,开发出压铸铝框结构作为主体结构的车载背光源。与常规两件配套的车载背光源相比,铝铸件为主体结构更加稳固牢靠,尺寸管控更加精准。同时随着背光源产品的发展和市场的需求,对背光源内部结构的松动、防尘和漏光要求越来越严格,如当背光源主要零部件出现松动时将产生以下两种主要问题:一是背光源振动时内部出现零部件碰撞产生的响声,这在中大屏中,特别在车载和高端工控产品是不允许出现的,因其影响终端产品的品质等级;二是背光源的长时间或剧烈的振动后,零部件碰撞磨擦时易产生细小零部件碎屑物体,甚至划伤导光板和其他膜片,从而在背光源的视区中产生黑白点,白斑等不良问题,而当背光源无有效的防尘结构,生产及货运输过程中会进灰尘,将造成大量返工,同时影响终端产品品质,而漏光直接影响到模组发光效果,影响终端产品使用的视觉效果。鉴于 ...
【技术保护点】
1.一种铝铸件结构的背光源,整体呈矩形,包括装有LED的FPC板、反射膜以及装在所述反射膜上面的导光板、装在所述导光板上面的散光膜、装在所述散光膜上面的下层增光膜、装在所述下层增光膜上面的上层增光膜、装在所述上层增光膜上面的胶壳、装在所述胶壳上面的表面泡棉胶,以及通过表面双面胶装在所述表面泡棉胶上面的表面保护膜;其特征在于:还包括位于所述反射膜下面的铝铸件,所述铝铸件四周设有双层向上台阶式突起的挡墙,在下层挡墙上沿四边对称设有多个朝上卡口,所述卡口与所述胶壳四边向下设置的多个卡扣匹配;在所述导光板短边一侧粘贴阶梯型的固定膜片双面胶,分别将所述散光膜、所述下层增光膜、所述上层 ...
【技术特征摘要】
1.一种铝铸件结构的背光源,整体呈矩形,包括装有LED的FPC板、反射膜以及装在所述反射膜上面的导光板、装在所述导光板上面的散光膜、装在所述散光膜上面的下层增光膜、装在所述下层增光膜上面的上层增光膜、装在所述上层增光膜上面的胶壳、装在所述胶壳上面的表面泡棉胶,以及通过表面双面胶装在所述表面泡棉胶上面的表面保护膜;其特征在于:还包括位于所述反射膜下面的铝铸件,所述铝铸件四周设有双层向上台阶式突起的挡墙,在下层挡墙上沿四边对称设有多个朝上卡口,所述卡口与所述胶壳四边向下设置的多个卡扣匹配;在所述导光板短边一侧粘贴阶梯型的固定膜片双面胶,分别将所述散光膜、所述下层增光膜、所述上层增光膜的短边一侧固定,所述导光板的一条长边设有向内凹槽,所述LED正对所述...
【专利技术属性】
技术研发人员:刘三妹,吴元会,罗增昌,
申请(专利权)人:惠州伟志电子有限公司,
类型:新型
国别省市:广东,44
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