Display device
A display device includes a substrate having a display region in which a plurality of pixels are arrayed in a first direction and a second direction different from the first direction, a plurality of scanning lines coupled to the pixels arrayed in the first direction, a plurality of signal lines coupled to the pixels arrayed in the second direction, a gate driver configured to supply a scanning signal to the scanning lines, and a signal line selection circuit configured to supply a pixel signal to the signal lines.
1. A display device comprising:
a substrate having a display region in which a plurality of pixels are arrayed in a first direction and a second direction different from the first direction;
a plurality of scanning lines coupled to the pixels arrayed in the first direction;
a plurality of signal lines coupled to the pixels arrayed in the second direction;
a gate driver configured to supply a scanning signal to the scanning lines; and
a signal line selection circuit configured to supply a pixel signal to the signal lines, wherein
the gate driver comprises:
a shift register circuit comprising a plurality of register circuits cascaded in descending or ascending order in the second direction, the register circuits being configured to output a binary signal that maintains a high potential of an input signal at a rising edge of a shift clock signal until a falling edge of the shift clock signal; and
a plurality of output circuits provided corresponding to the respective register circuits,
the output circuits each include Q AND circuits configured to generate a logical product of an output signal of the register circuit and an enable signal as a logical value of the scanning signal,
the register circuits each receive the shift clock signal that is at a high potential for Q+1 horizontal periods in descending or ascending order in a manner shifted by Q horizontal periods, and
the Q AND circuits each receive the enable signal that is at a high potential for two horizontal periods in descending or ascending order in a manner shifted by one horizontal period.
2. The display device according to claim 1 , wherein
the scanning signal that is at a high potential for two horizontal periods is supplied to the scanning lines arrayed in the second direction in descending or ascending order in a manner shifted by one horizontal period, and
the signal line selection circuit time-divides one horizontal period that is a latter half of a scanning line selection period in which the scanning signal is at a high potential and sequentially supplies the pixel signal to the pixels coupled to a selected scanning line.
3. A display device comprising:
a substrate having a display region in which a plurality of pixels are arrayed in a first direction and a second direction different from the first direction;
a plurality of scanning lines coupled to the pixels arrayed in the first direction;
a plurality of signal lines coupled to the pixels arrayed in the second direction;
a gate driver configured to supply a scanning signal to the scanning lines; and
a signal line selection circuit configured to supply a pixel signal to the signal lines, wherein
the gate driver comprises:
a shift register circuit comprising a plurality of register circuits cascaded in descending or ascending order in the second direction, the register circuits being configured to output a binary signal that maintains a high potential of an input signal at a falling edge of a shift clock signal until a rising edge of the shift clock signal; and
a plurality of output circuits provided corresponding to the respective register circuits,
the output circuits each include Q AND circuits configured to generate a logical product of an output signal of the register circuit and an enable signal as a logical value of the scanning signal,
the register circuits each receive the shift clock signal that is at a low potential for Q+1 horizontal periods in descending or ascending order in a manner shifted by Q horizontal periods, and
the Q AND circuits each receive the enable signal that is at a high potential for two horizontal periods in descending or ascending order in a manner shifted by one horizontal period.