Display module and control method therefor, and display apparatus

Patent metadata

Field	Value
Publication number	US-2025110564-A1
Application number	US-202318729183-A
Country	US
Kind code	A1
Filing date	May 12, 2023
Priority date	May 24, 2022
Publication date	Apr 3, 2025
Grant date	—

Abstract

Disclosed is a display module comprising a timing controller which comprises an identification unit and a determination unit, wherein the identification unit is configured to receive and identify a control signal sent by the display controller and output a first feedback signal to the display controller when the control signal is identified as a handshake signal, the first feedback signal being used for triggering the display controller to send a handshake parameter; and the determination unit is connected to the display controller, and is configured to receive the handshake parameter sent by the display controller, determine whether the handshake parameter matches a handshake parameter pre-stored in the determination unit, if so, determine that handshake is successful, and output a second feedback signal to the display controller, the second feedback signal being used for triggering the display controller to send a video signal, and if not, determine that handshake fails.

First claim

1 . A display module, comprising: a timing controller; wherein
the timing controller comprises an identification unit and a determination unit; the identification unit is connected with a display controller, and is configured to receive a control signal transmitted by the display controller, identify the control signal, and output a first feedback signal to the display controller when the control signal is identified as a handshake signal, wherein the first feedback signal is used for triggering the display controller to transmit a handshake parameter; the determination unit is connected with the display controller, and is configured to receive the handshake parameter transmitted by the display controller, determine whether the handshake parameter matches a handshake parameter pre-stored by the determination unit, determine that handshake succeeds when the handshake parameter matches the pre-stored handshake parameter, and output a second feedback signal to the display controller, wherein the second feedback signal is used for triggering the display controller to transmit a video signal; and determine that handshake fails when the handshake parameter does not match the pre-stored handshake parameter.

2 . The display module according to claim 1 , wherein the handshake signal is a high-level signal;
the identification unit is configured to identify the control signal, and output the first feedback signal to the display controller when the control signal is identified as the high-level signal.

3 . The display module according to claim 1 , wherein the handshake parameter comprises an encryption command and a register address;
the determination unit is configured to determine whether the encryption command is consistent with a pre-stored encryption command and whether the register address is consistent with a pre-stored register address, and when both the encryption command and the register address are consistent respectively, determine that handshake succeeds; when any one of the encryption command and the register address is inconsistent, determine that handshake fails.

4 . The display module according to claim 1 , further comprising: a source driver, a gate driver, and a display panel;
wherein the timing controller further comprises a video unit; the video unit is connected with the display controller, and is configured to receive a video signal transmitted by the display controller, output a display signal to the source driver based on the video signal and output a gate control signal to the gate driver; the display panel is configured to display under drive of the source driver and the gate driver.

5 . The display module according to claim 4 , wherein the source driver comprises a Clock-Embedded Differential Signaling (CEDS) interface and the timing controller is connected with the source driver through the CEDS interface.

6 . The display module according to claim 4 , wherein the display panel comprises a display region and a non-display region,
wherein the source driver is configured to output a data signal to the display region; and the gate driver is configured to output a scan signal to the display region.

7 . The display module according to claim 6 , wherein the source driver comprises at least one drive circuit board and at least one source drive module; and
the gate driver comprises a first gate drive circuit and a second gate drive circuit.

8 . The display module according to claim 4 , wherein the timing controller further comprises a control interface, a communication interface, and a video interface;
wherein the identification unit is connected with the display controller through the control interface; the determination unit is connected with the display controller through the communication interface; and the video unit is connected with the display controller through the video interface.

9 . The display module according to claim 8 , wherein the video interface comprises a V-by-One (VBO) interface.

10 . The display module according to claim 3 , wherein the timing controller further comprises a storage unit;
wherein the storage unit is configured to store the pre-stored encryption command and the pre-stored register address.

11 . The display module according to claim 10 , wherein the storage unit comprises a non-volatile memory, and the non-volatile memory comprises a FLASH memory.

12 . A display apparatus comprising: a display controller and a display module according to claim 1 ;
the display controller is configured to transmit a control signal to a timing controller of the display module, and transmit a handshake parameter to the timing controller after receiving a first feedback signal; and transmit a video signal to the timing controller for identification after receiving a second feedback signal.

13 . The display apparatus according to claim 12 , further comprising: a central processor, the central processor is connected with the display controller;
the display controller is configured to receive a handshake parameter transmitted by the central processor, and transmit the received handshake parameter to the timing controller; the display controller is further configured to receive a video signal transmitted by the central processor, and transmit the received video signal to the timing controller.

14 . A control method of a display module, applied to a display module according to claim 1 , wherein the control method comprises:
receiving a control signal transmitted by a display controller, identifying the control signal, and outputting a first feedback signal to the display controller when the control signal is identified as a handshake signal, wherein the first feedback signal is used for triggering the display controller to transmit a handshake parameter; receiving the handshake parameter transmitted by the display controller, determining whether the handshake parameter matches a pre-stored handshake parameter, determining that handshake succeeds when the handshake parameter matches the pre-stored handshake parameter, and outputting a second feedback signal to the display controller, wherein the second feedback signal is used for triggering the display controller to transmit a video signal; and determining that handshake fails when the handshake parameter does not match the pre-stored handshake parameter.

15 . The control method of the display module according to claim 14 , wherein the identifying the control signal and outputting the first feedback signal to the display controller when the control signal is identified as the handshake signal, comprises:
identifying the control signal, and outputting the first feedback signal to the display controller when the control signal is identified as a high-level signal.

16 . The control method of the display module according to claim 14 , wherein the handshake parameter comprises an encryption command and a register address, the determining whether the handshake parameter matches the pre-stored handshake parameter, determining that handshake succeeds when the handshake parameter matches the pre-stored handshake parameter, and outputting the second feedback signal to the display controller, comprises:
determining whether the encryption command is consistent with a pre-stored encryption command, and determining whether the register address is consistent with a pre-stored register address, determining handshake succeeds when both the encryption command and the register address are consistent respectively, and outputting the second feedback signal to the display controller.

17 .

Assignees

• Beijing Boe Display Tech Co
• Boe Technology Group Co Ltd

Inventors

• Luo Wenqian
• Ren Jingrui
• Gai Xin
• Jia Yuan
• Zhang Yujia
• Feng tianyi
• Geng Weibiao
• Li Fanglin

Classifications

• G09G3/2096

  Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167) · CPC title

• G06F3/017 Primary

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G09G2310/08

  Details of timing specific for flat panels, other than clock recovery · CPC title

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title