Displays with series-connected switching transistors

An organic light-emitting diode display, comprising:

• an array of pixels each of which includes an organic light-emitting diode and a drive transistor coupled in series with the organic light-emitting diode, wherein each drive transistor has a gate;
• display driver circuitry;
• and
• a plurality of data lines each of which supplies data to an associated column of the pixels from the display driver circuitry, wherein each of the pixels in each column has a semiconducting-oxide transistor and a silicon transistor coupled in series between the data line associated with that column and the gate of the drive transistor in that pixel and wherein the semiconducting-oxide transistor has a channel region that is formed from a semiconducting oxide material.

A liquid crystal display, comprising:

• an array of pixels, each pixel including a portion of a liquid crystal layer and electrodes that apply electric fields to the portion of the liquid crystal layer;
• display driver circuitry;
• and
• a plurality of data lines each of which supplies data to an associated column of the pixels from the display driver circuitry, wherein each of the pixels in each column has a semiconducting-oxide transistor and a silicon transistor coupled in series between the data line associated with that column and a given one of the electrodes in that pixel and wherein the silicon transistor of each pixel is interposed between the semiconducting-oxide transistor of that pixel and the given one of the electrodes in that pixel.