Cover window and electronic device including same

Abstract

An electronic device includes a processor and a housing having a first surface, a second surface, and a side surface. A touch screen display is exposed through a first area of the first surface. An optical sensor is disposed under a second area of the first surface that is adjacent to the first area. The optical sensor receives and/or emits an infrared ray. The first surface includes a substantially transparent glass layer, an opaque layer disposed between the glass layer and the second surface, and a color layer disposed between the opaque layer and the glass layer. The opaque layer includes an opening, a location and a size of which correspond to at least a portion of the optical sensor when viewed from the first surface. The optical sensor receives and/or emits the infrared ray through the opening, the color layer, and the glass layer.

What is claimed is: 
     
         1 . An electronic device comprising:
 a housing including a first surface facing a first direction, a second surface facing a second direction that is opposite to the first direction, and a side surface surrounding at least a portion of a space between the first surface and the second surface;   a touch screen display disposed within the housing and exposed through a first area of the first surface;   an optical sensor included within the housing, disposed under a second area of the first surface that is adjacent to the first area, and the optical sensor is configured to receive and/or emit infrared light; and   a processor electrically connected to the touch screen display and the optical sensor,   wherein the first surface comprises:
 a glass layer that is substantially transparent; 
 an opaque layer disposed between the glass layer and the second surface; and 
 a color layer disposed between the opaque layer and the glass layer and forming at least a portion of a color exposed through the glass layer, 
   wherein the opaque layer comprises an opening, a location and a size of which correspond to at least a portion of the optical sensor when viewed from the first surface, and   wherein the optical sensor receives and/or emits infrared light through the opening, the color layer, and the glass layer.   
     
     
         2 . The electronic device of  claim 1 , wherein the color layer has a thickness of 10 nm to 130 nm. 
     
     
         3 . The electronic device of  claim 1 , wherein the color layer has a thickness of 10 nm to 500 nm. 
     
     
         4 . The electronic device of  claim 1 , wherein the color layer has a thickness of 5 μm to 50 μm. 
     
     
         5 . The electronic device of  claim 1 , wherein the color layer comprises:
 a first layer disposed between the glass layer and the opaque layer and having a first refractive index;   a second layer disposed between the first layer and the opaque layer and having a second refractive index that is smaller than the first refractive index; and   a third layer disposed between the first layer and the second layer.   
     
     
         6 . The electronic device of  claim 5 , wherein a ratio of a thickness of the first layer and a thickness of the second layer is in a range between 0.48:1.09 to 7.33:16.50. 
     
     
         7 . The electronic device of  claim 5 , wherein the first layer and the second layer comprise at least one of SiO 2 , TiO 2 , Al 2 O 3 , Nb 2 O 5 , MgF 2 , Ti 2 O 5 , SnO 2 , ZnO, Ta 2 O 5 , MgO, Si 3 N 4 , ITO, AlN, AlON, TiN, Ti 3 O 5 , and ZrO 2 , and the third layer comprises at least one of In, Al, Ag, Sn, and Ag. 
     
     
         8 . The electronic device of  claim 1 , wherein light of a first wavelength band passes through the color layer at at least a first ratio, and light of a second wavelength band passes through the color layer at not greater than a second ratio. 
     
     
         9 . The electronic device of  claim 8 , wherein the first wavelength band corresponds to an infrared light area including a wavelength of 940 nm, and the second wavelength band corresponds to a visible light area including a wavelength of 550 nm. 
     
     
         10 . The electronic device of  claim 8 , wherein the first ratio is 20% and the second ratio is 15%. 
     
     
         11 . The electronic device of  claim 5 , wherein the third layer has a thickness of not greater than 50 nm. 
     
     
         12 . The electronic device of  claim 1 , wherein the color layer is formed by using at least one of color ink, a curing agent, a diluent or a solvent. 
     
     
         13 . The electronic device of  claim 1 , further comprising:
 at least one of a film layer printed by using an ink or a paint of an opaque color, or an infrared (IR) ink layer formed by using an IR ink.   
     
     
         14 . The electronic device of  claim 13 , wherein the film layer comprises a molding pattern. 
     
     
         15 . The electronic device of  claim 13 , wherein the IR ink layer is aligned with the opening. 
     
     
         16 . The electronic device of  claim 13 , wherein the IR ink layer increases a first ratio by which light of a first wavelength band passes through the color layer to at least a designated value, or decreases a second ratio by which light of a second wavelength band passes through the color layer to not greater than a second designated value. 
     
     
         17 . A cover window of an electronic device, the cover window comprising:
 a glass layer formed of a transparent material, the glass layer is configured to be disposed at an outskirt of the electronic device, and is configured to protect the electronic device from an external impact;   a color layer stacked under the glass layer and configured to realize a designated color; and   an opaque layer stacked under the color layer and printed opaquely in an area other than a designated area of the cover window,   wherein light of a first wavelength band passes through the color layer at at least a first ratio, and light of a second wavelength band passes through the color layer at not greater than a second ratio.   
     
     
         18 . The cover window of  claim 17 , wherein the first wavelength band corresponds to an infrared light area including a wavelength of 940 nm, the second wavelength band corresponds to a visible light area including a wavelength of 550 nm, the first ratio is 20%, and the second ratio is 15%. 
     
     
         19 . The cover window of  claim 17 , wherein the color layer comprises at least one oxide or nitride deposition layer and at least one metal thin film deposition layer, or the color layer comprises a printed painting film. 
     
     
         20 . The cover window of  claim 17 , further comprising:
 at least one of a film layer printed by using an ink or a paint of an opaque color, and an infrared (IR) ink layer formed by using an IR ink.