Display processing device, a data transmission method, and an image data inspection method
Embodiments are related to a display processing device, a data transmission method, and an image data inspection method, and provide a device and method for checking whether image data transmitted through a transmission line has errors.
1 . A data transmission method of a display processing device, comprising:
generating cyclic redundancy check (CRC) data for a first partial region of regions of image data included in a first frame;
transmitting data of the first frame through a first communication line; and
transmitting address information corresponding to the first partial region and the CRC data for the first partial region through a second communication line,
wherein the first communication line comprises a main link transmission line configured to transmit data based on an embedded Display Port (eDP) communication protocol.
2 . The data transmission method of claim 1 , wherein the second communication line comprises an I2C communication line.
3 . The data transmission method of claim 1 , wherein the CRC data is generated in subpixel units for the first partial region.
4 . The data transmission method of claim 1 , wherein the CRC data is transmitted at set intervals of frames.
5 . The data transmission method of claim 1 , wherein the CRC data is transmitted at a time of transmitting data of a second frame.
6 . The data transmission method of claim 1 , wherein the first partial region comprises an image corresponding to a state of a vehicle.
7 . The data transmission method of claim 1 , further comprising:
generating CRC data for each of a plurality of partial regions among the regions of the image data included in the first frame; and
sequentially transmitting the CRC data for the each of the plurality of partial regions for each partial region.
8 . A method for inspecting image data of a display driving device, comprising:
receiving data of a first frame through a first communication line;
receiving cyclic redundancy check (CRC) data for a first partial region among regions of image data included in the first frame and address information corresponding to the first partial region through a second communication line;
generating first CRC data for the first partial region included in the received CRC data of the first frame; and
determining whether there is an error in the first partial region based on a comparison result between the generated first CRC data and the received CRC data,
wherein the first communication line comprises a main link transmission line congifured to transmit data based on an embedded Display Port (eDP) communication protocol.
9 . The method of claim 8 , wherein the second communication line comprises an I2C communication line.
10 . The method of claim 8 , wherein the CRC data is generated in subpixel units for the first partial region.
11 . The method of claim 8 , wherein the CRC data is transmitted at set intervals of frames.
12 . The method of claim 8 , wherein the CRC data is transmitted at a time of transmitting data of a second frame.
13 . The method of claim 8 , wherein the first partial region comprises an image corresponding to a state of a vehicle.
14 . A display processing device, comprising:
a frame data transmission circuit configured to transmit data of a first frame through a first communication line;
a cyclic redundancy check (CRC) generation circuit configured to generate CRC data for a first partial region among regions of image data included in the first frame; and
a CRC transmission circuit configured to transmit address information corresponding to the first partial region and the CRC data for the first partial region through a second communication line,
wherein the first communication line comprises a main link transmission line configured to transmit data based on an embedded Display Port (eDP) communication protocol.
15 . The display processing device of claim 14 , wherein the second communication line comprises an I2C communication line.
16 . The display processing device of claim 14 , wherein the CRC data is generated in subpixel units for the first partial region.
17 . The display processing device of claim 14 , wherein the CRC data is transmitted at set intervals of frames.
18 . The display processing device of claim 14 , wherein the CRC generation circuit is configured to generate CRC data for each of a plurality of partial regions among the regions of image data included in the first frame, and
the CRC transmission circuit is configured to sequentially transmit the CRC data for the each of the plurality of partial regions for each partial region.