High resolution display panel with emissive organic layers emitting light of different colors

Abstract

An arrangement for a high resolution active matrix display includes organic emissive layers of distinct colors each deposited across continuous regions so as to include more than one pixel emissive region. Color filters are situated to partially block light from at least some of the emissive regions such that primary additive colors are transmitted from distinct subsets of pixels. The emissive layers may be deposited in alternating parallel stripes along rows or columns of the display, or may be oriented perpendicularly with respect to one another such that the emissive layers overlap in the emissive regions of at least some pixels. In some examples, red, green, and blue of pixels are arranged in regular patterns across the display and with the emissive regions for the blue pixels forming a relatively larger area of the display than either the red or green pixels.

What is claimed is: 
     
       1. A high resolution display panel comprising:
 a display substrate including at least first and second substantially continuous emissive layers that are common to, the lengths of said layers spanning multiple pixels along the lengths of said layers, said first and second emissive layers having different colors, each of said pixels including 
 a first driving terminal aligned with a segment of said first emissive layer to form a first sub-pixel, the first and second emissive layers overlapping in an area defined by the first driving terminal, the first sub-pixel producing light of a first color in response to current being conveyed through said first and second emissive layer layers from said first driving terminal, 
 second and third driving terminals aligned with different portions of said second emissive layer and located on a first side of said second emissive layer to form second and third sub-pixels producing light of a second color in response to current being conveyed through said second emissive layer from said second and third driving terminals, and 
 first and second color filters aligned with said second and third driving terminals and located on the opposite side of said second emissive layer from said second and third driving terminals to produce transmit light of third and fourth colors from said second and third sub-pixels, and 
 a third color filter aligned with said first driving terminal and located on an opposite side of said first and second emissive layers from said first driving terminal to transmit light of a fifth color from said first sub-pixel. 
 
     
     
       2. The high resolution display panel according to  claim 1 , wherein said emissive layers, and said color filters, are arranged such that the a first fundamental color, a second fundamental color, and a third fundamental color are emitted from the display panel via said first, second and third sub-pixels arranged in a regularly repeating pattern across the display panel. 
     
     
       3. The high resolution display panel according to  claim 2 , wherein said first emissive layer emits blue light, said second emissive layer emits orange light, and said first and second color filters transmit red and green light. 
     
     
       4. The high resolution display panel according to  claim 3 , wherein said first driving terminal occupies a larger surface area of the display panel than said second and third driving terminals. 
     
     
       5. The high resolution display panel according to claim 4, wherein the third color filter transmits blue light. 
     
     
       6. The high resolution display panel according to claim 1, wherein the third color filter transmits blue light. 
     
     
       7. The high resolution display panel according to claim 6, wherein said first driving terminal occupies a larger surface area of the display panel than said second and third driving terminals. 
     
     
       8. The high resolution display panel according to claim 1, wherein each pixel further comprises:
 a fourth driving terminal aligned with portions of said first emissive layer different from portions of said first emissive layer aligned with said first terminals, to form a fourth sub-pixel producing light of the first color in response to current being conveyed through said first emissive layer and through said second emissive layer from said first driving terminal,   wherein the first and second emissive layers overlap in an area defined by the fourth driving terminal.   
     
     
       9. The high resolution display panel according to claim 8, wherein the first color is white resulting from the blue light emitted from the first emissive layer and the orange light emitted from the second emissive layer. 
     
     
       10. The high resolution display panel according to claim 8, wherein the fourth sub-pixel is such that said light of the first color, white, is transmitted from said area defined by the fourth driving terminal substantially unfiltered.