# US 2013/0153017 A1 · Package structure and solar cell with the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153017 A1 - Document ID: US20130153017A1 - Status: Published application - Kind: A1 - Application number: 13/466,148 - Filed: 2012-05-08 - Published: 2013-06-20 - Earliest claimed: 2011-12-14 - Assignees: Industrial Technology Research Institute - Inventors: Tsung-Dar Cheng; Jen-You Chu; Yi-Ping Chen; Ping-Chen Chen - Web page: https://patentgrep.com/patent/US20130153017A1 ## CPC - H10F 19/80: Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells - H10F 77/488: {Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection} - Y02E 10/52: PV systems with concentrators - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A package structure and a solar cell with the same are provided. The package structure includes a transparent package bulk and at least one structure capable of changing a direction of light. The structure is disposed within the transparent package bulk and at a distance from a surface of the transparent package bulk. When applied to a solar cell, the package structure can reduce gridline shading. ## Claims ### Claim 1 A package structure, comprising: a transparent package bulk; and at least one structure capable of changing a direction of light, disposed within the transparent package bulk and at a first distance from a surface of the transparent package bulk. ### Claim 2 (depends on 1) The package structure according to claim 1, wherein the at least one structure capable of changing a direction of light comprises: a V-shaped reflective structure; and a filling material, filling the inside of the V-shaped reflective structure. ### Claim 3 (depends on 2) The package structure according to claim 2, wherein a half angle ψ of a vertex angle of the V-shaped reflective structure satisfies 0<ψ≦60°. ### Claim 4 (depends on 2) The package structure according to claim 2, wherein a height of the V-shaped reflective structure is greater than 50 μm. ### Claim 5 (depends on 2) The package structure according to claim 2, wherein a material of the V-shaped reflective structure is one selected from a group consisting of precious metals, transition metals, monetary metals, and alloys thereof. ### Claim 6 (depends on 2) The package structure according to claim 2, wherein the filling material is one selected from a group consisting of precious metals, transition metals, monetary metals, and alloys thereof; or one selected from a group consisting of ethylene-vinyl acetate, silica resin, polystyrene poly methyl acrylate, methyl methacrylate-styrene copolymer, polycarbonate, polyethylene, silicone resin, calcium carbonate, silicon dioxide, titanium dioxide, and a compound thereof. ### Claim 7 (depends on 2) The package structure according to claim 2, wherein materials of the filling material and the transparent package bulk are the same or different materials. ### Claim 8 (depends on 1) The package structure according to claim 1, wherein the at least one structure capable of changing a direction of light comprises a light diffusion layer. ### Claim 9 (depends on 8) The package structure according to claim 8, wherein the light diffusion layer is in the shape of a block, a triangle, or a half disk. ### Claim 10 (depends on 8) The package structure according to claim 8, wherein a material of the light diffusion layer comprises a resin and a plurality of diffusive particles. ### Claim 11 (depends on 10) The package structure according to claim 10, wherein the material of the plurality of diffusive particles is one selected from a group consisting of polystyrene, poly methyl acrylate, methyl methacrylate-styrene copolymer, polycarbonate, polyethylene, silicone resin, calcium carbonate, silicon dioxide, titanium dioxide, and a compound thereof. ### Claim 12 (depends on 10) The package structure according to claim 10, wherein a shape of the diffusive particles is spherical or irregular. ### Claim 13 (depends on 10) The package structure according to claim 10, wherein the diffusive particles are solid or porous particles. ### Claim 14 (depends on 10) The package structure according to claim 10, wherein a particle size of the diffusive particles is between 0.01 μm and 50 μm. ### Claim 15 (depends on 10) The package structure according to claim 10, wherein a ratio of the diffusive particles to the resin is 1/99 to 99/1. ### Claim 16 (depends on 15) The package structure according to claim 15, wherein a ratio of the diffusive particles to the resin is 1/6 to 3/1. ### Claim 17 (depends on 10) The package structure according to claim 10, wherein a material of the light diffusion layer further comprises an additive. ### Claim 18 (depends on 17) The package structure according to claim 17, wherein the additive comprises at least one non-ionic dispersing agent or a surfactant. ### Claim 19 (depends on 18) The package structure according to claim 18, wherein the non-ionic dispersing agent comprises a dispersing agent comprising a structure of fluoroaliphatic polymeric esters. ### Claim 20 (depends on 18) The package structure according to claim 18, wherein a ratio of an additive amount of the non-ionic dispersing agent to a total amount of the diffusive particles is from 0.005% to 15%. ### Claim 21 (depends on 1) The package structure according to claim 1, wherein a material of the transparent package bulk is one selected from a group consisting of ethylene-vinyl acetate, silica resin, and a compound thereof. ### Claim 22 (depends on 1) A solar cell, comprising the package structure according to claim 1, wherein the solar cell further comprises: a photoelectric conversion substrate; at least one lower electrode, disposed on a back side of the photoelectric conversion substrate; and a plurality of upper electrodes, disposed on a front side of the photoelectric conversion substrate, wherein the package structure covers the front side of the photoelectric conversion substrate and the upper electrodes, and the at least one structure capable of changing a direction of light, in the package structure, is disposed right above each of upper electrodes and at a second distance from the upper electrodes. ### Claim 23 (depends on 22) The solar cell according to claim 22, wherein the at least one structure capable of changing a direction of light is a V-shaped reflective structure, and the second distance is smaller than L - W 1 2 tan   2  ψ - D 1 - D 2 , wherein D1 is a height of the V-shaped reflective structure, D2 is a thickness of each of the upper electrodes, L is a pitch of each of the upper electrodes, W1 is the width of each of the upper electrodes, and ψ is a half angle of a vertex angle of the V-shaped reflective structure. ### Claim 24 (depends on 23) The solar cell according to claim 23, wherein the half angle ψ of the vertex angle of the V-shaped reflective structure satisfies 0<ψ≦60°. ### Claim 25 (depends on 23) The solar cell according to claim 23, wherein the width of a bottom edge of the V-shaped reflective structure is at least equal to the width of each upper electrode. ### Claim 26 (depends on 23) The solar cell according to claim 23, wherein a thickness of the package structure is at least greater than the sum of the second distance, the height of the V-shaped reflective structure and the thickness of each upper electrode. ### Claim 27 (depends on 22) The solar cell according to claim 22, wherein the at least one structure capable of changing a direction of light is a light diffusion layer, and the second distance satisfies 0