Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host

A technology for display drivers, operating methods, applied in static indicators, cathode ray tube indicators, scanning details of TV systems, etc., can solve problems such as shortening battery life of smart phones

Active Publication Date: 2013-03-20
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a result, the battery life of the smartphone is reduced

Method used

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  • Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host
  • Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host
  • Display driver, operating method thereof, host for controlling the display driver, and system having the display driver and the host

Examples

Experimental program
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Embodiment Construction

[0052] figure 1 A block diagram showing an image signal processing system according to an exemplary embodiment of the inventive concept, figure 2 One embodiment of a data packet transferred from the host to the display driver is shown.

[0053] refer to figure 1 , the image signal processing system 10A may be a mobile device, a handheld device, or a handheld computer that displays a still image signal (or a still image) or a moving image signal (or a moving image) on the display 300. The mobile device is, for example, a mobile phone , Smartphone, Tablet Personal Computer (PC), Personal Digital Assistant (PDA) or Portable Multimedia Player (PMP).

[0054] The image signal processing system 10A includes an application host processor 100 (hereinafter referred to as “host”), a display driver (or display driver IC “DDI”) 200A, and a display 300 .

[0055] According to an exemplary embodiment, the host 100 may transmit the data packet PAC to the display driver 200A based on whet...

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Abstract

The invention provides an operating method for a display driver. An operation method of a display driver includes generating a count value by counting a period of a synchronization signal related to a synchronization packet received from a host, receiving a mode change command from the host, the mode change command indicating a change from a video mode transmitting first image data to a display by bypassing a frame memory to a command mode transmitting second image data to the display through the frame memory, and generating an internal synchronization signal having a period substantially equal to the period of the synchronization signal by using the count value based on the mode change command after a last pulse of the synchronization signal is generated. A time interval between the last pulse and a first pulse of the internal synchronization signal is equal to the period of the synchronization signal.

Description

technical field [0001] Embodiments according to the inventive concept relate to a display driver and a method of operating the same, a host computer capable of controlling the display driver, and a system including the display driver and the host computer, the display driver being capable of executing between video mode and video mode based on a mode change command during operation. Mode change between command modes. Background technique [0002] As image resolution increases, the amount of data communication between mobile application processors and display driver integrated circuits (ICs) increases dramatically. As a result, the power consumed by mobile application processors and / or display driver ICs is also increasing. [0003] Traditional voice-centric cellular phones are rapidly being replaced by data-centric multimedia smartphones. Display driver ICs included in smartphones are often used to display multimedia data, such as still image signals or moving image signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G06F3/14H05B44/00
CPCG09G5/36G09G2320/103G09G5/12G09G2360/18G09G2370/04H04N3/27G09G2330/021G09G2360/10G09G2370/10G09G5/006G09G2330/12G09G5/18G06F1/3265
Inventor 车致镐李相圭李贤哲金锺善金孝珍李学成印承镇崔铉准
Owner SAMSUNG ELECTRONICS CO LTD
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