LCD module identification
AssigneeDialog Semiconductor GmbH
InventorHelmut Burkhardt
Life of this patent
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Abstract
A circuit and a method for an effective way to customize the display driver software of any type of LCD-display and any type of LCD-driver chip used in an LCD display system is achieved. This is important in a multiple sourcing environment where LCD driver chips and LCD modules from different vendors are used in LCD display systems. This is accomplished through identification and registration of the information relevant for the said software customization by storing said information in an LCD module identification register. A microprocessor controlling the LCD display system is reading this identification register and providing the software customization elements specific to the LCD-driver chip and to the LCD-module during an initialization step of the system.
Claims34
An identification system for an LCD system comprising:
- an LCD module;
- a microprocessor unit to control said LCD system;
- said LCD module includes an LCD driver chip and an LCD display;
- an LCD information register located within said LCD system for holding information required to identify the physical characteristics of said LCD driver chip and said LCD display;
- and
- means for providing said information to said microprocessor unit to customize the system software of said LCD module to the specific requirements of the said LCD driver chip and said LCD display.
An identification system for an LCD system comprising:
- an LCD module;
- a microprocessor unit to control said LCD system;
- said LCD module includes an LCD driver chip and an LCD display;
- an LCD information register located within said LCD system for holding information required to identify the physical characteristics of said LCD driver chip and said LCD display;
- and
- any serial or parallel interface using any communications protocol for providing said information to said microprocessor unit to customize the system software of said LCD module to the specific requirements of the said LCD driver chip and said LCD display.
The method for the customization of a system software that drives an LCD module in an LCD system which system includes said LCD module, a microprocessor unit, an LCD identification register, and wherein said LCD module includes an LCD driver chip and an LCD display comprising:
- providing information about the physical characteristics of said LCD driver chip and said LCD module to said LCD identification register;
- inputting from said register said information into said microprocessor unit;
- selecting and assigning the specific parameters required for the specific types of LCD driver chip and said LCD display according to said information read from the said identification register by said microprocessor unit;
- and
- supplying by said microprocessor unit said parameters to said LCD driver chip and said LCD module for said customization of said system software.
The method for the customization of a system software that drives an LCD module in an LCD system which system includes said LCD module, a microprocessor unit, an LCD identification register, and wherein said LCD module includes an LCD driver chip and an LCD display comprising:
- providing information about the physical characteristics of said LCD driver chip and said LCD module to said LCD identification register wherein said physical characteristics contain information such as the manufacturer of the LCD-driver chip, the type of the LCD-driver chip, the version of the LCD driver chip, the manufacturer of the LCD-module, the type of the LCD-module, the version of the LCD-module and other relevant information;
- inputting from said register said information into said microprocessor unit;
- selecting and assigning the specific parameters required for the specific types of LCD driver chip and said LCD display according to said information read from the said identification register by said microprocessor unit;
- and
- supplying by said microprocessor unit said parameters to said LCD driver chip and said LCD module for said customization of said system software.
Dependencies are inferred from the claim text.