Patent ID: 8743093
Filing Date: 2014-06-03
Classification: G09G

Abstract:
1. A display apparatus, comprising: a plurality of first scan lines for analog display, which are arranged along a first direction on a substrate; a plurality of second scan lines for digital display, which are arranged along the first direction on the substrate, wherein the plurality of first scan lines are different scan lines than the plurality of second scan lines; a plurality of data signal lines which are arranged in a second direction intersecting the first direction; a plurality of display pixels which are selected by a predetermined scan line selection signal concerning the plurality of first scan lines and the plurality of second scan lines and to which an image signal from the data signal lines is supplied, the plurality of display pixels being arranged in a matrix on the substrate and including display pixels which are each provided with a first scan line of the plurality of first scan lines connected to a first switch circuit and a second scan line of the plurality of second scan lines connected to a second switch circuit; a first display circuit for the analog display, which is connected to one of the plurality of first scan lines via one of the first switch circuits which operates by means of a first scan line selection signal which is supplied from the one of the plurality of first scan lines, and which is disposed in a display pixel, the first display circuit sequentially supplying the image signal which is sequentially input to a pixel electrode of the display pixel, a second display circuit for the digital display, which is connected to one of the plurality of second scan lines via one of the second switch circuits which operates by means of a second scan line selection signal which is supplied from the one of the plurality of second scan lines, and which is disposed in the display pixel, the second display circuit including a holding circuit which holds the image signal and supplying a voltage in accordance with the signal held by the holding circuit to the pixel electrode; a mode switching circuit for performing mode switching between an analog display mode in which the first display circuit operates and a digital display mode in which the second display circuit operates, in accordance with a mode switching signal; and a plurality of mode signal lines which are arranged along the first direction on the substrate and provided to the plurality of display pixels, wherein the plurality of mode signal lines transmit mode switching signals for switching between using the plurality of first scan lines for the analog display mode and using the plurality of second scan lines for the digital display mode, in accordance with the mode switching signal, wherein the mode switching signal is composed of a mode switching first signal and a mode switching second signal having different signal amplitudes and different polarities, the mode switching first signal is supplied to a first mode signal line of the plurality of mode signal lines, the mode switching second signal is supplied to a second mode signal line of the plurality of mode signal lines that is different from the first mode signal line, the mode switching circuit activates the first display circuit under the condition that the mode switching first signal is turned ON and activates the second display circuit under the condition that the mode switching second signal is turned ON, and the mode switching circuit includes: