| 摘要 |
TFT substrate (10) includes a plurality of pixel regions each including light emitting regions of at least three colors, which light emitting regions include light emitting layers (23R(1), 23G, 23R(2), and 23B), respectively, and two adjacent ones of the light emitting regions are a combination other than a combination of (i) a light emitting region included in a light emitting layer (23G) of a color having a highest current efficiency in a case where the light emitting layers of the light emitting regions of the at least three colors emit light having an identical luminance and (ii) a light emitting region included in a light emitting layer (23B) of a color having a lowest current efficiency in a case where the light emitting layers of the light emitting regions of the at least three colors emit light having an identical luminance. |
| 主权项 |
1. A method of producing an organic electroluminescence display device, comprising the steps of:
(a) forming an anode by patterning; (b) forming a cathode; and (c) forming light emitting layers of at least three colors in the same plane of the display substrate sequentially on a color-by-color basis, the step (c) being carried out between the step (a) and the step (b), each of the light emitting layers being made from a vapor-deposited film, wherein: in the step (c), light emitting regions of the at least three colors which light emitting regions are included in the respective light emitting layers each made from the vapor-deposited film are arranged in a one-dimensional direction; the light emitting layers of the light emitting regions of the at least three colors are formed such that (i) at least one first light emitting layer is located between a second light emitting layer and a third light emitting layer, wherein the second light emitting layer displays a color having a highest current efficiency, the third light emitting layer displays a color having a lowest current efficiency, and the at least one first light emitting layer displays corresponding color having a current efficiency less than the highest current efficiency and more than the lowest current efficiency, in accordance with the at least three colors being three colors, a quantity of the at least one first light emitting layer is one and in accordance with the at least three colors being four or more colors, a quantity of the at least one first light emitting layer is two or more, and (ii) the light emitting layers are provided such that current efficiencies of the light emitting layers other than the second light emitting layer increase with increasing proximity to the second light emitting layer while current efficiencies of the light emitting layers other than the third light emitting layer decrease with increasing proximity to the third light emitting layer; the anode and the cathode sandwiching the light emitting layers therebetween, the anode and the cathode being provided at a lower position and at a higher position, respectively, than the light emitting layers or being provided at a higher position and at a lower position, respectively, than the light emitting layers, the second light emitting layer and the third light emitting layer, being located so as not to be adjacent to each other in a horizontal direction of the display substrate; and a respective light emitting layer of one of two adjacent light emitting regions overlaps a respective light emitting layer of the other of the two adjacent light emitting regions in an overlapping area provided at a boundary between the light emitting layers of the two adjacent light emitting regions, wherein, in the overlapping area, a light emitting layer having a lower current efficiency out of the light emitting layers of the two adjacent light emitting regions is located closer to the anode than to the cathode, and wherein each of the two adjacent light emitting regions includes a non-overlapping area where the light emitting layers of the two adjacent light emitting regions do not overlap each other while having different colors. |
