Light emitting device package including light emitting devices, light-transmissive substrate, and eutectic bonding layer interposed therebetween and display device using the same

A light emitting device package comprising:

• a light-transmissive substrate including a first region and a second region, the first region including at least one wavelength conversion portion;
• a cell array bonded to the light-transmissive substrate, the cell array including a first light emitting device, a second light emitting device and a third light emitting device, each of the first to third light emitting devices including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer, the first light emitting device and the second light emitting device overlapping the first region, the third light emitting device overlapping the second region;
• and
• a eutectic bonding layer including a plurality of light emitting windows corresponding to the first light emitting device, the second light emitting device, and the third light emitting device, respectively, the eutectic bonding layer bonding the light-transmissive substrate and the cell array to each other, wherein
• the light-transmissive substrate comprises first and second recesses corresponding to the first and second tight emitting devices, respectively, on a surface facing the cell array, and
• each of the first and second recesses are provided with a reflective layer on a side surface of thereof.

A display device comprising:

• a display panel including a circuit board and a plurality of light emitting device packages arranged in rows and columns on the circuit board, each of the plurality of light emitting device packages providing a single pixel;
• a driver configured to drive the display panel;
• and
• a controller configured to control the driver,
• wherein the display panel includes,
• a cell array including a first light emitting device, a second light emitting device, and a third light emitting device, each of first, second and third light emitting devices including a first conductivity-type semiconductor layer, an active layer and a second conductivity-type semiconductor layer, the cell array having a first surface and a second surface opposing the first surface,
• a light-transmissive substrate including a first wavelength conversion portion and a second wavelength conversion portion corresponding to the first light emitting device and the second light emitting device, respectively, the light-transmissive substrate bonded to the first surface, and
• a eutectic bonding layer including a first light emitting window, a second light emitting window, and a third light emitting window corresponding to the first light emitting device, the second light emitting device and the third light emitting device, respectively, the eutectic bolding layer bonding the light-transmissive substrate and the first to third light emitting devices to each other, wherein
• the light-transmissive substrate comprises first and second recesses corresponding to the first and second light emitting devices, respectively, at a surface in contact with the first surface, and
• the first and second wavelength conversion portions are in the first and second recesses, respectively, and are configured to provide light rays having wavelengths different from wavelengths of light rays emitted by the first and second light emitting devices, respectively.