A display apparatus, comprising: a plurality of sub-pixels, wherein the sub-pixels are used for light-emitting display; a plurality of signal lines (DL, SL), wherein the plurality of signal lines are electrically connected to the plurality of sub-pixels and provide a signal required for light-emitting display to the plurality of sub-pixels; a signal line repair module, wherein the signal line repair module is electrically connected to the plurality of signal lines, and configured to repair a disconnected signal line; and the signal line repair module comprises: a plurality of connection switches, wherein an input end of each connection switch is electrically connected to one signal line, and an output end thereof is electrically connected to another signal line; a plurality of first shift units, wherein the plurality of first shift units are sequentially cascaded, and the plurality of first shift units are disposed in a one-to-one correspondence with the plurality of connection switches; and a shift output end of each first shift unit is electrically connected to a control end of a corresponding connection switch; and a drive chip, wherein the drive chip is electrically connected to the plurality of signal lines and the signal line repair module, and is configured to provide the signal required for controlling the light-emitting display of the sub-pixels to the signal lines, send, when determining that a disconnected signal line exists, a control signal to the signal line repair module to enable shift output ends of the plurality of first shift units to sequentially output enable signals, and enable the first shift unit corresponding to a connection switch electrically connected to the disconnected signal line to continuously output enable signals, to control the connection switch electrically connected to the disconnected signal line to be continuously turned on, so that the disconnected signal line is electrically connected to another signal line. a plurality of sub-pixels, wherein the sub-pixels are used for light-emitting display; a plurality of signal lines (DL, SL), wherein the plurality of signal lines are electrically connected to the plurality of sub-pixels and provide a signal required for light-emitting display to the plurality of sub-pixels; a signal line repair module, wherein the signal line repair module is electrically connected to the plurality of signal lines, and configured to repair a disconnected signal line; and the signal line repair module comprises: a plurality of connection switches, wherein an input end of each connection switch is electrically connected to one signal line, and an output end thereof is electrically connected to another signal line; a plurality of first shift units, wherein the plurality of first shift units are sequentially cascaded, and the plurality of first shift units are disposed in a one-to-one correspondence with the plurality of connection switches; and a shift output end of each first shift unit is electrically connected to a control end of a corresponding connection switch; and a drive chip, wherein the drive chip is electrically connected to the plurality of signal lines and the signal line repair module, and is configured to provide the signal required for controlling the light-emitting display of the sub-pixels to the signal lines, send, when determining that a disconnected signal line exists, a control signal to the signal line repair module to enable shift output ends of the plurality of first shift units to sequentially output enable signals, and enable the first shift unit corresponding to a connection switch electrically connected to the disconnected signal line to continuously output enable signals, to control the connection switch electrically connected to the disconnected signal line to be continuously turned on, so that the disconnected signal line is electrically connected to another signal line. a plurality of connection switches, wherein an input end of each connection switch is electrically connected to one signal line, and an output end thereof is electrically connected to another signal line; a plurality of first shift units, wherein the plurality of first shift units are sequentially cascaded, and the plurality of first shift units are disposed in a one-to-one correspondence with the plurality of connection switches; and a shift output end of each first shift unit is electrically connected to a control end of a corresponding connection switch; and a drive chip, wherein the drive chip is electrically connected to the plurality of signal lines and the signal line repair module, and is configured to provide the signal required for controlling the light-emitting display of the sub-pixels to the signal lines, send, when determining that a disconnected signal line exists, a control signal to the signal line repair module to enable shift output ends of the plurality of first shift units to sequentially output enable signals, and enable the first shift unit corresponding to a connection switch electrically connected to the disconnected signal line to continuously output enable signals, to control the connection switch electrically connected to the disconnected signal line to be continuously turned on, so that the disconnected signal line is electrically connected to another signal line.