US 9,810,942 B2
Quantum dot-enhanced display having dichroic filter
Chenhua You, San Jose, CA (US); Jun Qi, Cupertino, CA (US); Fan-Chung Hsu, Los Altos, CA (US); and Victor H. Yin, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Nov. 17, 2015, as Appl. No. 14/944,016.
Application 14/944,016 is a continuation in part of application No. 13/630,785, filed on Sep. 28, 2012, abandoned.
Claims priority of provisional application 61/660,501, filed on Jun. 15, 2012.
Prior Publication US 2016/0070137 A1, Mar. 10, 2016
Int. Cl. G02F 1/1335 (2006.01)
CPC G02F 1/133603 (2013.01) [G02F 1/133609 (2013.01); G02F 1/133615 (2013.01); G02F 2001/133614 (2013.01); G02F 2202/108 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display, comprising:
a display module; and
backlight structures that provide light to the display module, wherein the backlight structures include:
blue light-emitting diodes that provide blue light;
a light-conversion film that converts the blue light into light of at least one different color;
a first dichroic filter;
a second dichroic filter, wherein the light-conversion film is interposed between the first and second dichroic filters; and
a prism layer interposed between the second dichroic filter and the display module, wherein the prism layer reflects on-axis light and collimates off-axis light.