Display device manufacturing method and display device produced thereby
View Patent ↗A display device manufacturing method including arraying pixels 20 comprising plural sub-pixels with different light-emitting colors in two intersecting directions on a flexible substrate 12 by patterning plural sub-pixels 14, 16, 18 with different light-emitting colors onto the flexible substrate 12 , wherein patterning of the sub-pixels is performed such that from the two directions of pixel array, the plural sub-pixels with different light-emitting colors are arrayed within the pixels in a rows along the direction X with the smaller substrate dimensional change ratio.
1. A display device manufacturing method comprising:
arraying pixels, which comprise a plurality of sub-pixels with different light-emitting colors, in two intersecting directions on a flexible substrate, by patterning the plurality of sub-pixels with different light-emitting colors onto the flexible substrate,
wherein the flexible substrate has a difference in a dimensional change ratio between the two directions of the substrate and dimensions of the flexible substrate change in the patterning process, and
wherein patterning of the sub-pixels is performed such that, from the two directions of the pixel array, within each of the pixels the plurality of sub-pixels with different light-emitting colors are arrayed in a row along the direction with the smaller substrate dimensional change ratio.
2. The display device manufacturing method of claim 1 , wherein the substrate dimensional change ratio is the substrate thermal dimensional change ratio, the thermal dimensional change ratio being an absolute value expressed by (L 80 −L 20 ) /L 20 in which L 20 and L 80 are lengths of the substrate measured at 20° C. and 80° C. with respect to one of the two directions of the substrate, respectively.
3. The display device manufacturing method of claim 2 , wherein the pixels are formed from organic EL elements.
4. The display device manufacturing method of claim 3 , further comprising forming light-emitting layers of the organic EL elements by mask vapor deposition or mold transfer.
5. A display device that has been manufactured by the method of claim 4 .
6. The display device manufacturing method of claim 1 , wherein the pixels are formed from organic EL elements.
7. The display device manufacturing method of claim 6 , further comprising forming light-emitting layers of the organic EL elements by mask vapor deposition or mold transfer.
8. A display device that has been manufactured by the method of claim 1 .
9. A display device manufacturing method comprising:
arraying pixels, which comprise a plurality of sub-pixels with different light-emitting colors, in two intersecting directions on a flexible substrate, by patterning the plurality of sub-pixels with different light-emitting colors onto the flexible substrate using photolithography,
wherein the flexible substrate has a difference in a dimensional change ratio between the two directions of the substrate and dimensions of the flexible substrate change in the patterning process, and
wherein patterning of the sub-pixels is performed such that, from the two directions of the pixel array, within each of the pixels the plurality of sub-pixels with different light-emitting colors are arrayed in a row along the direction with the smaller substrate dimensional change ratio between before and after the photolithographic process.
10. The display device manufacturing method of claim 9 , wherein the substrate dimensional change ratio is the substrate thermal dimensional change ratio, the thermal dimensional change ratio being an absolute value expressed by (L 80 −L 20 ) /L 20 in which L 20 and L 80 are lengths of the substrate measured at 20° C. and 80° C. with respect to one of the two directions of the substrate, respectively.
11. The display device manufacturing method of claim 10 , wherein the pixels are formed from organic EL elements.
12. The display device manufacturing method of claim 11 , further comprising forming light-emitting layers of the organic EL elements by mask vapor deposition or mold transfer.
13. A display device that has been manufactured by the method of claim 12 .
14. The display device manufacturing method of claim 9 , wherein the pixels are formed from organic EL elements.
15. The display device manufacturing method of claim 14 , further comprising forming light-emitting layers of the organic EL elements by mask vapor deposition or mold transfer.
16. A display device that has been manufactured by the method of claim 9 .