Display apparatus and method of controlling the same

Patent metadata

Field	Value
Publication number	US-12211461-B2
Application number	US-202318214935-A
Country	US
Kind code	B2
Filing date	Jun 27, 2023
Priority date	Sep 19, 2022
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

Provided is a display apparatus including: a liquid crystal panel; a source driver configured to output a grayscale voltage to the liquid crystal panel; a timing controller configured to transmit a source control signal to the source driver; a scaler configured to transmit image data corresponding to content received from an external source to the timing controller; and a controller configured to adjust a driving scan rate of the liquid crystal panel to correspond to a set scan rate of the content, and control at least one of the scaler or the timing controller to adjust a data rate of an output signal based on the driving scan rate.

First claim

What is claimed is:

1. A display apparatus comprising:
a liquid crystal panel;
a source driver configured to output a grayscale voltage to the liquid crystal panel;
a timing controller configured to transmit a source control signal to the source driver;
a scaler configured to transmit image data corresponding to content received from an external source to the timing controller; and
a controller configured to:
adjust a driving scan rate of the liquid crystal panel to correspond to a set scan rate of the content; and
control at least one of the scaler or the timing controller to adjust a data rate of an output signal at each time of the content received from the external source being changed, based on the driving scan rate.

2. The display apparatus of claim 1 , wherein the controller is further configured to control the at least one of the scaler or the timing controller to adjust the data rate of the output signal in proportion to the driving scan rate.

3. The display apparatus of claim 2 , wherein the controller is further configured to, based on the set scan rate of the content being decreased, control the at least one of the scaler or the timing controller to decrease the data rate of the output signal.

4. The display apparatus of claim 2 , wherein the controller is further configured to, based on the set scan rate of the content being increased, control the at least one of the scaler or the timing controller to increase the data rate of the output signal.

5. The display apparatus of claim 2 , wherein the controller is further configured to control the at least one of the scaler or the timing controller to control the data rate of the output signal to be linearly proportional to the driving scan rate.

6. The display apparatus of claim 1 , wherein the controller is further configured to control the at least one of the scaler or the timing controller to adjust the data rate of the output signal based on the driving scan rate in units of preset frame intervals.

7. The display apparatus of claim 1 , wherein the controller is further configured to control the at least one of the scaler or the timing controller to adjust the data rate of the output signal based on the driving scan rate in units of preset time intervals.

8. A method of controlling a display apparatus, the method comprising:
adjusting a driving scan rate of a liquid crystal panel to correspond to a set scan rate of content received from an external source; and
controlling at least one of a timing controller for transmitting a source control signal to a source driver that outputs a grayscale voltage to the liquid crystal panel or a scaler for transmitting image data corresponding to the content to the timing controller, to adjust a data rate of an output signal at each time of the content received from the external source being changed, based on the driving scan rate.

9. The method of claim 8 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
controlling the at least one of the timing controller or the scaler to adjust the data rate of the output signal in proportion to the driving scan rate.

10. The method of claim 9 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
based on the set scan rate of the content being decreased, controlling the at least one of the timing controller or the scaler to decrease the data rate of the output signal.

11. The method of claim 9 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
based on the set scan rate of the content being increased, controlling the at least one of the timing controller or the scaler to increase the data rate of the output signal.

12. The method of claim 9 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
controlling the at least one of the timing controller or the scaler to control the data rate of the output signal to be linearly proportional to the driving scan rate.

13. The method of claim 8 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
controlling the at least one of the timing controller or the scaler to adjust the data rate of the output signal based on the driving scan rate in units of preset frame intervals.

14. The method of claim 8 , wherein the controlling of the at least one of the timing controller or the scaler comprises:
controlling the at least one of the scaler or the timing controller to adjust the data rate of the output signal based on the driving scan rate in units of preset time intervals.

15. A display apparatus comprising:
a liquid crystal panel; and
a controller configured to:
adjust a driving scan rate of the liquid crystal panel to correspond to a set scan rate of content received from an external source; and
control at least one of a scaler or a timing controller to adjust a data rate of an output signal at each time of the content received from the external source being changed, based on the driving scan rate.

16. The display apparatus of claim 15 , wherein the controller is further configured to control the at least one of the scaler or the timing controller to adjust the data rate of the output signal in proportion to the driving scan rate.

17. The display apparatus of claim 16 , wherein the controller is further configured to, based on the set scan rate of the content being decreased, control the at least one of the scaler or the timing controller to decrease the data rate of the output signal.

18. The display apparatus of claim 16 , wherein the controller is further configured to, based on the set scan rate of the content being increased, control the at least one of the scaler or the timing controller to increase the data rate of the output signal.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Dongki
• Kim Jihye
• Kim Changhoon
• Seo Jeongphil
• Lee Kyeongjin
• Lim Sungjin
• Jung Youngho
• Jung Yujin

Classifications

• G09G3/3674

  Details of drivers for scan electrodes · CPC title

• G09G3/2092

  Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165) · CPC title

• G09G5/006

  Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04) · CPC title

• G09G2350/00

  Solving problems of bandwidth in display systems · CPC title

• G09G2340/14

  Solving problems related to the presentation of information to be displayed · CPC title