WO2021016808A1 - 绑定背板及其制作方法、背光模组及显示装置 - Google Patents
绑定背板及其制作方法、背光模组及显示装置 Download PDFInfo
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Abstract
Description
Claims (20)
- 一种绑定背板,包括:衬底;第一走线层,位于所述衬底的一侧;平坦层,位于所述第一走线层远离所述衬底的一侧;第二走线层,位于所述平坦层远离所述衬底的一侧且通过过孔与所述第一走线层连接,所述第二走线层包括连线部,以及与所述连线部连接的用于绑定发光二极管的绑定部;表面保护层,位于所述第二走线层远离所述衬底的一侧,且曝露出所述绑定部;以及导电反射结构,位于所述表面保护层靠近所述衬底的一侧,所述导电反射结构包括与所述第一走线层和所述第二走线层绝缘隔离的接地部分,所述接地部分远离所述衬底的一面与所述衬底的间距,不大于所述绑定部远离所述衬底的一面与所述衬底的间距。
- 根据权利要求1所述的绑定背板,还包括:位于所述第二走线层与所述表面保护层之间且曝露出所述绑定部的内保护层,所述导电反射结构为位于所述表面保护层和所述内保护层之间的导电反射层。
- 根据权利要求2所述的绑定背板,其中:所述导电反射层还包括与所述接地部分绝缘隔离的隔离部分,其中:所述接地部分与所述第二走线层在所述衬底上的正投影无交叠;所述隔离部分与所述连线部在所述衬底上的正投影至少部分交叠。
- 根据权利要求2所述的绑定背板,其中:所述导电反射层包括沿远离所述衬底方向依次设置的第一透明导电层、银层和第二透明导电层。
- 根据权利要求2所述的绑定背板,还包括:位于所述衬底和所述第一走线层 之间的缓冲层。
- 根据权利要求1所述的绑定背板,其中:所述导电反射结构包括第一导电反射层,所述第一导电反射层位于所述衬底与所述第一走线层之间,且与所述第一走线层绝缘隔离,所述第一导电反射层接地设置。
- 根据权利要求6所述的绑定背板,其中:所述导电反射结构还包括形成于所述第一走线层远离所述衬底的一面的第二导电反射层。
- 根据权利要求6所述的绑定背板,其中:所述导电反射结构还包括形成于所述连线部远离所述衬底的一面的第三导电反射层。
- 根据权利要求6所述的绑定背板,还包括:位于所述第一导电反射层和所述第一走线层之间的缓冲层,所述第一导电反射层和所述第一走线层通过所述缓冲层绝缘隔离。
- 根据权利要求6所述的绑定背板,其中:所述第一导电反射层、所述第二导电反射层和所述第三导电反射层均包括:沿远离所述衬底方向依次设置的第一透明导电层、银层和第二透明导电层。
- 根据权利要求1-10任一项所述的绑定背板,还包括:位于所述第一走线层和所述平坦层之间的走线保护层。
- 根据权利要求11所述的绑定背板,其中:所述衬底包括玻璃衬底或树脂衬底。
- 一种绑定背板的制作方法,包括:在衬底的一侧制作第一走线层;在所述第一走线层远离所述衬底的一侧制作平坦层,所述平坦层具有通向所述走线的过孔;在所述平坦层远离所述衬底的一侧制作第二走线层,所述第二走线层通过所述过孔与所述第一走线层连接,所述第二走线层包括连线部,以及与所述连线部连接的用于绑定发光二极管的绑定部;在所述第二走线层远离所述衬底的一侧制作表面保护层,所述表面保护层曝露出所述绑定部;所述制作方法还包括:在制作所述表面保护层之前制作导电反射结构,所述导电反射结构包括与所述第一走线层和所述第二走线层绝缘隔离的接地部分,所述接地部分远离所述衬底的一面与所述衬底的间距,不大于所述绑定部远离所述衬底的一面与所述衬底的间距。
- 根据权利要求13所述的制作方法,其中:所述导电反射结构为导电反射层,所述导电反射层除所述接地部分外,还包括与所述接地部分绝缘隔离的隔离部分,所述制作方法包括:在所述第二走线层远离所述衬底的一侧制作内保护层;在所述内保护层远离所述衬底的一侧制作所述导电反射层,所述导电反射层的接地部分与所述第二走线层在所述衬底上的正投影无交叠,所述导电反射层的隔离部分与所述连线部在所述衬底上的正投影至少部分交叠;在所述导电反射层远离所述衬底的一侧制作所述表面保护层,并使所述表面保护层和所述内保护层曝露出所述绑定部。
- 根据权利要求14所述的制作方法,还包括:在制作所述第一走线层之前,在所述衬底的一侧形成缓冲层。
- 根据权利要求13所述的制作方法,其中:所述导电反射结构包括不同层设置的第一导电反射层、第二导电反射层和第三导电反射层,所述制作方法包括:在制作所述第一走线层之前,在所述衬底的一侧依次制作用于接地的第一导电反射层,以及缓冲层;在制作所述第一走线层的构图工艺中,在所述第一走线层远离所述衬底的一面制 作第二导电反射层;在制作所述第二走线层之后,制作所述表面保护层之前,在所述连线部远离所述衬底的一面制作第三导电反射层。
- 根据权利要求13-16任一项所述的制作方法,还包括:在制作所述第一走线层之后,制作所述平坦层之前,在所述第一走线层远离所述衬底的一侧制作走线保护层。
- 一种背光模组,所述背光模组的光源部件包括:根据权利要求1-12任一项所述的绑定背板,以及绑定于所述绑定背板的多个发光二极管。
- 根据权利要求18所述的背光模组,其中:所述发光二极管为次毫米发光二极管。
- 一种显示装置,包括根据权利要求18或19所述的背光模组。
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