Wavelength conversion member, backlight assembly, and display device including the same

A backlight assembly comprising:

• a light guide plate comprising a first side and a second side, wherein the first side is directly connected to the second side and is oriented at an angle with respect to the second side;
• a light source configured to emit light, wherein the light source comprises a circuit board and a light source element, wherein the light source element is positioned between the circuit board and the first side of the light guide plate;
• and
• a wavelength conversion member configured to convert a wavelength of the light emitted from the light source,
• wherein the light source is positioned outside the wavelength conversion member, and
• wherein the wavelength conversion member includes:
• a first substrate;
• a second substrate;
• a wavelength conversion layer interposed between the first substrate and the second substrate;
• and
• a spacer interposed between the first substrate and the second substrate to keep a distance between the first substrate and the second substrate, wherein the first substrate is positioned between the spacer and the second side of the light guide plate, wherein the spacer comprises a first wall and a second wall, and wherein the first wall extends at an obtuse angle with respect to the second wall in a plan view of the wavelength conversion member.

A display device comprising:

• a display panel configured to display an image;
• and
• a backlight assembly configured to provide light to the display panel,
• wherein the backlight assembly includes:
• a light source configured to emit light;
• and
• a wavelength conversion member configured to convert a wavelength of the light emitted from the light source,
• wherein the wavelength conversion member includes:
• a first substrate;
• a second substrate;
• a wavelength conversion layer interposed between the first substrate and the second substrate;
• a spacer interposed between the first substrate and the second substrate to keep a distance between the first substrate and the second substrate, the spacer completely enclosing the wavelength conversion layer in a plan view of the wavelength conversion member;
• and
• a sealant surrounding the spacer, wherein a section of the spacer extends at an acute angle with respect to a section of the sealant in the plan view of the wavelength conversion member.