Method for expanding spacings in light-emitting element array and light-emitting element array unit

Abstract

A method for expanding spacings in a light-emitting element array includes the following steps of: providing a light-emitting element array unit including a stretchable supporting film, and a plurality of light-emitting elements disposed on the stretchable supporting film and arranged into a two-dimensional array; stretching the stretchable supporting film along a first direction and a second direction. The first direction and the second direction respectively correspond to a row direction and a column direction of the two-dimensional array.

What is claimed is: 
     
         1 . A method for expanding spacings in a light-emitting element array, comprising:
 providing a light-emitting element array unit including a stretchable supporting film, and a plurality of light-emitting elements disposed on the stretchable supporting film and arranged into a two-dimensional array; and   stretching the stretchable supporting film along a first direction and a second direction so as to expand spacings between the light-emitting elements, wherein the first direction and the second direction respectively correspond to a row direction and a column direction of the two-dimensional array.   
     
     
         2 . The method of  claim 1 , wherein the step of stretching the stretchable supporting film is conducted by stretching the stretchable supporting film along the first direction followed by stretching the stretchable supporting film along the second direction. 
     
     
         3 . The method of  claim 1 , wherein the step of stretching the stretchable supporting film is conducted by simultaneously stretching the stretchable supporting film along the first and second directions. 
     
     
         4 . The method of  claim 1 , wherein the stretchable supporting film is formed with a plurality of through holes corresponding in position to the light-emitting elements. 
     
     
         5 . The method of  claim 4 , wherein each of the light-emitting elements is configured into a geometric shape and has at least three corners, the through holes corresponding in position to the corners of the light-emitting elements. 
     
     
         6 . The method of  claim 4 , wherein each of the light-emitting elements is configured into a geometric shape and has at least three sides each having a midpoint, the through holes corresponding in position to the midpoints of the sides of the light-emitting elements. 
     
     
         7 . The method of  claim 4 , wherein the stretchable supporting film has a plurality of first imaginary lines each located equidistantly between two adjacent rows of the light-emitting elements, and a plurality of second imaginary lines each located equidistantly between two adjacent columns of the light-emitting elements, the through holes being formed on the first and second imaginary lines of the stretchable supporting film. 
     
     
         8 . The method of  claim 7 , wherein the through holes of the stretchable supporting film are formed at intersections of the first and the second imaginary lines. 
     
     
         9 . The method of  claim 1 , further comprising:
 attaching a surface of each of the light-emitting elements onto a package substrate, followed by removing the stretchable supporting film therefrom, wherein the surface of each of the light-emitting elements is away from the stretchable supporting film.   
     
     
         10 . The method of  claim 9 , wherein the removal of the stretchable supporting film from the light-emitting elements is conducted by irradiating the stretchable supporting film with a light having a predetermined wavelength, so as to reduce adhesion strength between the stretchable supporting film and the light-emitting elements. 
     
     
         11 . The method of  claim 9 , wherein the removal of the stretchable supporting film from the light-emitting elements is conducted by heating the stretchable supporting film so as to reduce adhesion strength between the stretchable supporting film and the light-emitting elements. 
     
     
         12 . The method of  claim 9 , wherein the package substrate is one of a printed circuit board, a TFT substrate, and a CMOS substrate. 
     
     
         13 . A light-emitting element array unit comprising:
 a stretchable supporting film; and   a plurality of light-emitting elements that are disposed on said stretchable supporting film and that are arranged into a two-dimensional array;   wherein said stretchable supporting film is formed with a plurality of through holes that correspond in position to said light-emitting elements.   
     
     
         14 . The light-emitting element array unit according to  claim 13 , wherein each of said light-emitting elements is configured into a geometric shape and has at least three corners, said through holes corresponding in position to said corners of said light-emitting elements. 
     
     
         15 . The light-emitting element array unit according to  claim 13 , wherein each of said light-emitting elements is configured into a geometric shape and has at least three sides each having a midpoint, said through holes corresponding in position to said midpoints of said sides of said light-emitting elements. 
     
     
         16 . The light-emitting element array unit according to  claim 13 , wherein said stretchable supporting film has a plurality of first imaginary lines each located equidistantly between two adjacent rows of said light-emitting elements, and a plurality of second imaginary lines each located equidistantly between two adjacent columns of said light-emitting elements, said through holes being formed on said first and second imaginary lines of said stretchable supporting film. 
     
     
         17 . The light-emitting element array unit according to  claim 16 , wherein said through holes of said stretchable supporting film are formed at intersections of said first and second imaginary lines.