Case structure

Abstract

A case structure applied to contain a portable electronic device comprises a back cover, a frame, a transparent film and a protective layer. The frame is detachably connected to the back cover. The transparent film is disposed between the back cover and the frame and has a through hole. The protective layer covers the through hole and is disposed between the back cover and the transparent film.

What is claimed is: 
     
         1 . A case structure applied to contain a portable electronic device, comprising:
 a back cover;   a frame detachably connected to the back cover;   a transparent film disposed between the back cover and the frame and having a through hole; and   a protective layer covering the through hole and disposed between the back cover and the transparent film.   
     
     
         2 . The case structure as recited in  claim 1 , wherein the protective layer is disposed to at least a part of the transparent film. 
     
     
         3 . The case structure as recited in  claim 1 , wherein the thickness of the protective layer is between 0.02 mm and 0.08 mm. 
     
     
         4 . The case structure as recited in  claim 1 , wherein the transparent film and the protective layer are made by the same material. 
     
     
         5 . The case structure as recited in  claim 4 , wherein the material of the transparent film and protective layer includes polyvinyl chloride (PVC), polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA) or their any combination. 
     
     
         6 . The case structure as recited in  claim 1 , wherein the transparent film and the protective layer are made by different material. 
     
     
         7 . The case structure as recited in  claim 6 , wherein the materials of the transparent film and protective layer include polyvinyl chloride (PVC), polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA) or their any combination. 
     
     
         8 . The case structure as recited in  claim 1 , wherein the back cover, the frame and the transparent film collectively define a containing space for containing the portable electronic device. 
     
     
         9 . The case structure as recited in  claim 7 , wherein the portable electronic device includes a fingerprint recognition portion and the protective layer is disposed corresponding to the fingerprint recognition portion. 
     
     
         10 . The case structure as recited in  claim 1 , further comprising:
 a functional layer disposed on the same side as the transparent film covered by the protective layer.   
     
     
         11 . The case structure as recited in  claim 10 , wherein the functional layer includes an anti-scratch layer or anti-fingerprint layer. 
     
     
         12 . The case structure as recited in  claim 10 , wherein the material of the functional layer includes fluorocarbon silicon hydrocarbons, perfluorocarbon silicon hydrocarbons, fluorocarbon silane hydrocarbons, per-fluorinated silane hydrocarbons, perfluorinated silane hydrocarbon ethers, perfluorinated silane hydrocarbon ethers containing chlorine radicals, or their any combination. 
     
     
         13 . The case structure as recited in  claim 1 , further comprising:
 a printed layer disposed around the through hole and between the transparent film and the protective layer.   
     
     
         14 . The case structure as recited in  claim 1 , further comprising:
 a printed layer disposed around the through hole and to the transparent film.   
     
     
         15 . The case structure as recited in  claim 1 , further comprising:
 a printed layer disposed around the through hole and to the protective layer.