Granted Patent B2

US 12,646,486 · App. 18/830,244 · Granted Jun 2, 2026

Inventors: Yongsoo Choi (Suwon-si, KR); Jeonghyeon Lee (Suwon-si, KR)

Assignee: SAMSUNG ELECTRONICS CO., LTD.

G09G5/006G09G2370/042G09G2370/14

Abstract

Claims (67)

1 . A display apparatus, comprising:

a communication interface;

a display;

one or more processors connected with the communication interface and the display and configured to control the display apparatus; and a memory configured to store instructions which, when executed by the one or more processors, cause the display apparatus to:

based on a cable being connected to the communication interface, identify a communication standard supported by the cable based on a voltage applied to a first pin in the communication interface,

wherein the identifying of the communication standard supported by the cable includes identifying whether the cable is a cable of a first communication standard or a cable of a second communication standard;

set identification information for the display based on the communication standard supported by the cable; and

displaying an image on the display based on the identification information.

2 . The display apparatus of claim 1 , wherein the identification information comprises an extended display identification data (EDID) and a DisplayPort configuration data (DPCD) for the display.

3 . The display apparatus of claim 2 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

set the EDID and the DPCD based on the communication standard supported by the cable and a specification of the display.

4 . The display apparatus of claim 2 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

respectively change an EDID and a DPCD stored in the memory to an EDID and a DPCD corresponding to the communication standard supported by the cable; and

control the display to display a message guiding a change in the EDID and the DPCD.

5 . The display apparatus of claim 2 , further comprising:

a user interface,

wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

based on an EDID and a DPCD corresponding to the communication standard supported by the cable respectively varying from an EDID and a DPCD stored in the memory, control the display to display a message guiding a change in the EDID and the DPCD; and

respectively change the EDID and the DPCD stored in the memory to the EDID and the DPCD corresponding to the communication standard supported by the cable, based on a change command being received through the user interface.

6 . The display apparatus of claim 2 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

based on an electronic apparatus being identified as connected through the cable after setting the EDID and the DPCD, control the communication interface to transmit a hot plug detect (HPD) signal to the electronic apparatus.

7 . The display apparatus of claim 2 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

based on identifying that the cable is connected to the communication interface and that an electronic apparatus is connected through the cable, identify the voltage applied to the first pin;

identify the communication standard supported by the cable based on the voltage; and

after setting the EDID and the DPCD based on the communication standard supported by the cable, control the communication interface to transmit a HPD signal to the electronic apparatus.

8 . The display apparatus of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

identify the cable as being the cable of the first communication standard based on the voltage being 0V;

identify the cable as being the cable of the second communication standard based on the voltage exceeding 0V and being within a first voltage range; and

identify the cable as a cable of a third communication standard based on the voltage exceeding 0V, and being within a second voltage range which is higher or broader than the first voltage range.

9 . The display apparatus of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

based on a bit transfer rate of the communication standard supported by the cable being lower than a bit receive rate of the one or more processors, control the display to display a message that image playback is not possible through the cable.

10 . The display apparatus of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to: identify whether the cable is connected to the communication interface through a second pin in the communication interface; and

identify the voltage applied to the first pin based on the cable being identified as connected to the communication interface.

11 . The display apparatus of claim 1 , wherein the EDID and the DPCD are provided to an electronic apparatus through the communication interface based on joining of the cable.

12 . A method of controlling a display apparatus, the method comprising:

based on a cable being connected to a communication interface of the display apparatus, identifying a communication standard supported by the cable based on a voltage applied to a first pin in the communication interface,

wherein the identifying of the communication standard supported by the cable includes identifying whether the cable is a cable of a first communication standard or a cable of a second communication standard;

setting identification information for a display of the display apparatus based on the communication standard supported by the cable; and

displaying an image on the display based on the identification information.

13 . The method of claim 12 , wherein the identification information comprises an extended display identification data (EDID) and a DisplayPort configuration data (DPCD) for the display.

14 . The method of claim 12 , wherein the identifying comprises:

identifying the cable as the cable of the first communication standard based on the voltage being 0V;

identifying the cable as the cable of the second communication standard based on the voltage exceeding 0V and being within a first voltage range; and

identifying the cable as a cable of a third communication standard based on the voltage exceeding 0V, and being within a second voltage range which is higher or broader than the first voltage range.

15 . The method of claim 12 , further comprising:

based on a bit transfer rate of the communication standard supported by the cable being lower than a bit receive rate of the display apparatus, displaying a message that image playback is not possible through the cable.

16 . A display apparatus, comprising:

a communication interface;

a display;

one or more processors connected with the communication interface and the display and configured to control the display apparatus; and

a memory configured to store instructions which, when executed by the one or more processors, cause the display apparatus to:

based on a cable being connected to the communication interface, measure a voltage of a first pin in the communication interface;

identify a communication standard supported by the cable based on the voltage applied of the first pin,

wherein the identifying of the communication standard supported by the cable includes identifying whether the cable is a cable of a first communication standard or a cable of a second communication standard; and

control the display to display an image based on a configuration corresponding to the communication standard supported by the cable.

17 . The display apparatus of claim 16 , wherein the configuration is DisplayPort configuration data (DPCD) for the display.

18 . The display apparatus of claim 17 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

set the DPCD based on the communication standard supported by the cable and a specification of the display.

19 . The display apparatus of claim 16 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

identify the cable as being the cable of the first communication standard based on the voltage being 0V,

wherein the cable of the first communication standard supports DisplayPort 1.4;

identify the cable as being the cable of the second communication standard based on the voltage being between 0.33V to 0.50V,

wherein the cable of the second communication standard supports DisplayPort 2.1 UHBR-10; and

identify the cable as being a cable of a third communication standard based on the voltage being between 0.86V to 1.20V,

wherein the cable of the third communication standard supports DisplayPort 2.1 UHBR-20.

20 . The display apparatus of claim 16 , wherein the instructions, when executed by the one or more processors, further cause the display apparatus to:

based on a bit transfer rate of the communication standard supported by the cable being lower than a bit receive rate of the one or more processors, control the display to display a message that image playback is not possible through the cable.

Assignments (1)

Priority Claims (2)

Continuity (2)

References Cited (39)