Curved surface backlight module and curved surface display device

A curved surface display device, comprising a curved surface backlight module and a curved surface display panel disposed on a side of a light-exiting surface of the backlight module, wherein a bending direction of the curved surface backlight module is same as a bending direction of the curved surface display panel, wherein the curved surface backlight module comprises a central partition and an edge partition located around the central partition, and the curved surface backlight module comprises:

• a substrate comprising a first surface;
• and
• a plurality of light-emitting units distributed in an array manner and disposed on the first surface, wherein the light-emitting units comprise reflector cups and light emitting diode (LED) chips located in the reflector cups, and
• wherein the plurality of reflector cups comprise first reflector cups located in the edge partition and second reflector cups located in the central partition, the first reflector cups are asymmetric with respect to a first curved surface normal corresponding to a position at where the first reflector cups are located;
• wherein the reflector cups comprise openings facing away from a side of the substrate, the corresponding LED chips are located in the openings, the openings comprise lateral walls, and a lateral wall of the first reflector cups is asymmetric with respect to the first curved surface normal corresponding to the position at where the first reflecting cups are located from a direction of the central partition toward the edge partition;
• wherein a lateral wall of the second reflector cups is symmetrical with respect to a second curved surface normal corresponding to a position at where the second reflector cups are located;
• wherein an included angle between the lateral wall of the second reflector cups relative to the second curved surface normal is α, the lateral wall of the first reflector cups comprises a first lateral wall close to the central partition and a second lateral wall away from the central partition, a first included angle between the first lateral wall relative to the first curved surface normal is β, and a second included angle between the second lateral wall relative to the first curved surface normal is γ, and wherein, 0<β<α<90°, and 90°>γ>α>0;
• wherein an included angle between the first curved surface normal corresponding to a position at where any one of the first reflector cups is located and the second curved surface normal corresponding a position at where one of the second reflector cups located in a center of the central partition is located is ω, and wherein β=α−ω, and γ=α+ω.

A curved surface backlight module, wherein the curved surface backlight module comprises a central partition and an edge partition located around the central partition, and the curved surface backlight module comprises:

• a substrate comprising a first surface;
• and
• a plurality of light-emitting units distributed in an array manner and disposed on the first surface, wherein the light-emitting units comprise reflector cups and light emitting diode (LED) chips located in the reflector cups, and
• wherein the plurality of reflector cups comprise first reflector cups located in the edge partition and second reflector cups located in the central partition, and the first reflector cups are asymmetric with respect to a first curved surface normal corresponding to a position at where the first reflector cups are located;
• wherein the reflector cups comprise openings facing away from a side of the substrate, the corresponding LED chips are located in the openings, the openings comprise lateral walls, and a lateral wall of the first reflector cups is asymmetric with respect to the first curved surface normal corresponding to the position at where the first reflecting cups are located from a direction of the central partition toward the edge partition;
• wherein a lateral wall of the second reflector cups is symmetrical with respect to a second curved surface normal corresponding to a position at where the second reflector cups are located;
• wherein an included angle between the lateral wall of the second reflector cups relative to the second curved surface normal is α, the lateral wall of the first reflector cups comprises a first lateral wall close to the central partition and a second lateral wall away from the central partition, a first included angle between the first lateral wall relative to the first curved surface normal is β, and a second included angle between the second lateral wall relative to the first curved surface normal is γ, and wherein, 0<β<α<90°, and 90°>γ>α>0;
• wherein an included angle between a tangent to the position at where any one of the first reflector cups is located and a tangent to the position where one of the second reflector cups located at the center of the central partition is located is greater than or equal to 30° and less than 90°.