Display module and manufacturing method as the same
A display module is provided. The display module includes a substrate, a conductive light absorption layer provided on a surface of the substrate, and a plurality of pixels electrically coupled to the substrate through the conductive light absorption layer. Each of the plurality of pixels may include a first self-luminescence element, a second self-luminescence element and a third self-luminescence element, each emitting light of a same color, a first color conversion layer corresponding to a light emitting surface of the first self-luminescence element and a second color conversion layer corresponding to a light emitting surface of the second self-luminescence element, and a first color filter corresponding to the first color conversion layer and a second color filter corresponding to the second color conversion layer.
1 . A display module comprising:
a substrate;
a conductive light absorption layer provided on a surface of the substrate; and
a plurality of pixels electrically coupled to the substrate through the conductive light absorption layer,
wherein each of the plurality of pixels comprises:
a first self-luminescence element, a second self-luminescence element and a third self-luminescence element, each of the first self-luminescence element, the second self-luminescence element and the third self-luminescence element being configured to emit light of a same color;
a first color conversion layer corresponding to a light emitting surface of the first self-luminescence element, wherein a bottom surface of the first color conversion layer directly contacts a top surface of the first self-luminescence element;
a second color conversion layer corresponding to a light emitting surface of the second self-luminescence element, wherein a bottom surface of the second color conversion layer directly contacts a top surface of the second self-luminescence element;
a first color filter corresponding to the first color conversion layer;
a second color filter corresponding to the second color conversion layer,
wherein the display module further comprises a partition wall separating the first self-luminescence element and the second self-luminescence element,
wherein a width of the first color conversion layer is greater than a width of the first self-luminescence element, and a width of the second color conversion layer is greater than a width of the second self-luminescence element,
wherein the conductive light absorption layer directly contacts a lower side surface of the first self-luminescence element and a bottom surface of the partition wall, and
wherein the display module further comprises a first optical adhesive directly contacting an upper side surface of the first self-luminescence element, the bottom surface of the first color conversion layer, a side surface of the partition wall, and a top surface of the conductive light absorption layer.
2 . The display module of claim 1 , wherein the conductive light absorption layer comprises:
a transparent resin;
a plurality of first conductive balls provided in the transparent resin; and
a plurality of light absorbing materials provided in the transparent resin.
3 . The display module of claim 2 , wherein the transparent resin comprises an epoxy resin, a polyurethane resin, or an acrylic resin.
4 . The display module of claim 2 , wherein each of the plurality of first conductive balls comprises:
a polymer particle; and
a conductive film coated on a surface of the polymer particle, and
wherein the conductive film comprises gold (Au), nickel (Ni), or palladium (Pd).
5 . The display module of claim 2 , wherein the plurality of light absorbing materials comprises metal nanoparticles configured to absorb light.
6 . The display module of claim 5 , wherein the metal nanoparticles comprises Au, platinum (Pt), silver (Ag), an Au alloy, a Pt alloy or an Ag alloy.
7 . The display module of claim 2 , wherein the conductive light absorption layer comprises:
a resin with a black-based color; and
a plurality of second conductive balls provided in the resin with the black-based color.
8 . The display module of claim 1 , wherein each of the first self-luminescence element, the second self-luminescence element, and the third self-luminescence element comprises a blue micro light emitting diode (LED).
9 . The display module of claim 1 ,
wherein the partition wall is configured to reflect light emitted from a side surface of the first color conversion layer, and a side surface of the second color conversion layer.
10 . The display module of claim 9 , wherein the partition wall is a white-based color.
11 . The display module of claim 9 , wherein the partition wall comprises a metal film at a surface of the partition wall.
12 . The display module of claim 9 , further comprising a second optical adhesive contacting the side surface of the second self-luminescence element and the bottom surface of the second color conversion layer,
wherein the side surface of the first self-luminescence element is adhered to the partition wall by the first optical adhesive, and the side surface of the second self-luminescence element is adhered to the partition wall by the second optical adhesive.
13 . The display module of claim 12 , wherein the first color conversion layer is configured such that an area not corresponding to the light emitting surface of the first self-luminescence element from an entire area of one surface of the first color conversion layer is in contact with the first optical adhesive.
14 . The display module of claim 12 , wherein the first optical adhesive and the second optical adhesive comprise an ultraviolet (UV) curing silicon rubber.
15 . The display module of claim 1 , wherein the first color conversion layer comprises a first color conversion material which emits light of a red wavelength range, and
the second color conversion layer comprises a second color conversion material which emits light of a green wavelength range.
16 . A display module comprising:
a substrate;
a conductive light absorption layer provided on a surface of the substrate; and
a plurality of pixels provided on the substrate,
wherein each of the plurality of pixels comprises:
a self-luminescence element comprising a light emitting surface;
a color conversion layer corresponding to the light emitting surface of the self-luminescence element, wherein a bottom surface of the color conversion layer directly contacts a top surface of the self-luminescence element; and
a color filter corresponding to the color conversion layer,
wherein a width of the color conversion layer is greater than a width of the self-luminescence element,
wherein the display module further comprises a partition wall separating the self-luminescence element from an adjacent self-luminescence element,
wherein the conductive light absorption layer directly contacts a lower side surface of the self-luminescence element and a bottom surface of the partition wall, and
wherein the display module further comprises a first optical adhesive directly contacting an upper side surface of the self-luminescence element, the bottom surface of the color conversion layer, a side surface of the partition wall, and a top surface of the conductive light absorption layer.
17 . The display module of claim 16 , wherein the conductive light absorption layer comprises:
a transparent resin;
a plurality of conductive balls provided in the transparent resin; and
a plurality of light absorbing materials provided in the transparent resin.
18 . The display module of claim 16 , wherein the self-luminescence element comprises a blue micro light emitting diode (LED).
19 . The display module of claim 16 , wherein the color conversion layer comprises a color conversion material which emits light of a red wavelength range.