US 11,908,399 B2
Column interchangeable demultiplexer structure in displays
Sangmoo Choi, Palo Alto, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 17/905,427
Filed by GOOGLE LLC, Mountain View, CA (US)
PCT Filed Nov. 25, 2020, PCT No. PCT/US2020/070823
§ 371(c)(1), (2) Date Sep. 1, 2022,
PCT Pub. No. WO2022/115118, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2023/0122018 A1, Apr. 20, 2023
Int. Cl. G09G 3/3208 (2016.01)
CPC G09G 3/3208 (2013.01) [G09G 2300/0426 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
a plurality of subpixel emissive areas of a first color;
a plurality of subpixel emissive areas of a second color;
a plurality of subpixel emissive areas of a third color, wherein the plurality of subpixel emissive areas of the first, second, and third colors are arranged in an array, the array having a plurality of rows and a plurality of columns, with rows of the array including subpixel emissive areas arranged in a repeating pattern of subpixel emissive areas of the first color, the second color, the third color, and the second color, and with alternating columns of the array including subpixel emissive areas: (a) arranged in a repeating pattern of a subpixel emissive area of the first color and a subpixel emissive areas of the third color, and (b) including only subpixel emissive areas of the second color;
a plurality of scan lines;
a plurality of column lines;
a plurality of electronic subpixel circuits arranged in the array, each electronic subpixel circuit in a column of the array being electrically connected to a same column line, and each electronic subpixel circuit configured for receiving electronic signals from a scan line and from a column line and for converting the received signals into a current signal provided to one of the subpixel emissive areas to drive light emission from the subpixel emissive area, wherein electronic subpixel circuits arranged in a column of the array drive columns of emissive areas having only one color;
a plurality of demultiplexer (DEMUX) switches, wherein every other column line of the plurality of column lines is configured to be connected to at least two outputs from a column line driver through the plurality of DEMUX switches; and
a plurality of subpixel circuit output ports, wherein each electronic subpixel circuit of the plurality of electronic subpixel circuits is electrically connected to an emissive area by a subpixel circuit output port of the plurality of subpixel circuit output ports,
wherein for each subpixel emissive area of the second color, the electronic subpixel circuit that provides the current signal to the emissive area of the second color, and the output port that electrically connects the subpixel area of the second color to the electronic subpixel circuit that provides the current signal to the emissive areas of the second color are located in a same row and in a same column, and
wherein, in every other row, each subpixel emissive area of the first and third colors is located in a different column from the column in which the electronic subpixel circuit that provides the current signal to the emissive area is located, and in other rows each subpixel emissive area of the first and third colors is located in a same column as the electronic subpixel circuit that provides the current signal to the emissive area.