Patent ID: 8040052

Claim:
A light-emitting device comprising: a planar element substrate; and a plurality of pixels constituting a screen, each of the plurality of pixels including four subpixels, which are a red subpixel, a green subpixel, a blue subpixel, and a white subpixel, wherein the red subpixel has a light-emitting layer formed of a red-light-emitting material that emits red light and extending along the screen, and a color filter provided above the light-emitting layer to transmit red light; wherein the green subpixel has a light-emitting layer formed of a white-light-emitting material that emits white light and extending along the screen, and a color filter provided above the light-emitting layer to transmit green light; wherein the blue subpixel has a light-emitting layer formed of a blue-light-emitting material that emits blue light and extending along the screen, and a color filter provided above the light-emitting layer to transmit blue light; wherein the white subpixel has a light-emitting layer formed of the white-light-emitting material and extending along the screen; wherein the red subpixel light emitting layer is spaced apart from the green subpixel light emitting layer and the blue subpixel light emitting layer; wherein the green subpixel light emitting layer is spaced apart from the blue subpixel light emitting layer; wherein the green and white subpixels have a common layer; wherein the light-emitting layer of each of the four subpixels is provided on the element substrate; wherein the light-emitting layer of each of the red, green, and blue subpixels is disposed between the color filter thereof and the element substrate; wherein each of the four subpixels has a transmissive layer that transmits light provided between the light-emitting layer thereof and the element substrate; wherein the white subpixel has a reflective layer that reflects light provided between the transmissive layer thereof and the element substrate; and wherein the transmissive layer of the white subpixel has at least three portions having different thicknesses.