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Interface circuit for converting LCD screen address

A technology of LCD screen and address conversion, which is applied in the field of LCD screens, can solve problems such as not being able to support special screens well, and achieve the effect of flexible interface solutions

Inactive Publication Date: 2008-11-12
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to provide a more flexible and concise interface implementation mode to support the different requirements of various LCD screens for address formats in view of the problem that the traditional method cannot well support some special screens.

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  • Interface circuit for converting LCD screen address
  • Interface circuit for converting LCD screen address

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Embodiment Construction

[0023] The present invention can configure all required address command information through software. When a byte contains address command and address data at the same time, the address command part is in charge of the software, and the address data part is in charge of the hardware. In actual implementation, both software and hardware operate in byte mode. When the software configures this byte, configure the address command of the corresponding bit, and for the address data part that needs to be configured by the hardware circuit, the software uses zero allocation. Similarly, the address data information required by the hardware circuit configuration is enough. The hardware does not directly configure the header data, but configures the address data information required in a register with the same width as the header data, and allocates the address command part configured by the software. zero. In this way, the address information ultimately required by the LCD screen can ...

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Abstract

The invention discloses an address converting interface circuit of a LCD screen and a method thereof. The circuit comprises a header data register for storing address data and address orders. The circuit is characterized in that: the address data are divided into at least one address data part according to bits; the interface circuit comprises a position information register used for defining the position of at least one address data part in the header data; according to the position information of the position information register, the header data register recombines at least one address data part and address order and transmits the address data part and address order to the LCD screen. The method of converting the interface of the LCD screen address of the invention has the advantages of being comparatively flexible and supporting the configuration of address information according to the bits.

Description

technical field [0001] The invention relates to an LCD screen, in particular to an LCD screen address conversion interface circuit. Background technique [0002] There are many types of LCD screens on the market, and there are mainly two ways to refresh the screen: DBI and DPI. Wherein, when adopting DB I to swipe the screen, the requirement for the address format is generally a group of address information queues, and the transmission of the queues includes simultaneously addressing the address data (that is, the corresponding start address and end address (or area height and width) of the swipe screen. ) and address command (that is, the corresponding physical address of the address register where the LCD screen loads address data) is transmitted. The address format requirements for swiping the screen vary greatly depending on the manufacturer. In order to adapt to the changes of LCD screen requirements on the market, it is necessary to design a flexible address conversi...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 周志涛
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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