Display system
First Claim
1. A display system comprising:
- a mainframe;
a control circuit comprising an image processing unit and an image compositing circuit, communicating with the mainframe through a first channel and a second channel, and generating an image signal; and
a display panel showing pictures according to the image signal;
wherein the mainframe provides the image processing unit with image data, parameter data and control signals through both the first and second channels when the first channel works, and the image processing unit processes the image data and the parameter data and generates a first data signal to be the image signal;
wherein the mainframe provides the image compositing circuit with response data through the second channel when the first channel fails, and the image compositing circuit combines the response data and a pre-determined background into a second data signal to be the image signal;
wherein the response data include at least one of a numerical digit and a status flag, or the pre-determined background includes at least one indicator of vehicle speed, motor rotation rate, engine coolant temperature and fuel level.
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Accused Products
Abstract
This disclosure provides a display system, which comprises: a mainframe; a control module comprising an image processing unit and an image compositing unit, communicating with the mainframe through a first channel and a second channel, and generating an image signal; and a display panel showing pictures according to the image signal; wherein the mainframe provides the image processing unit with image data, parameter data and control signals through both the first and second channels when the first channel works, and the image processing unit processes the image data and the parameter data and generates a first data signal to be the image signal; wherein the mainframe provides the image compositing unit with response data through the second channel when the first channel fails, and the image compositing unit combines the response data and a pre-determined background into a second data signal to be the image signal.
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Citations
15 Claims
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1. A display system comprising:
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a mainframe; a control circuit comprising an image processing unit and an image compositing circuit, communicating with the mainframe through a first channel and a second channel, and generating an image signal; and a display panel showing pictures according to the image signal; wherein the mainframe provides the image processing unit with image data, parameter data and control signals through both the first and second channels when the first channel works, and the image processing unit processes the image data and the parameter data and generates a first data signal to be the image signal; wherein the mainframe provides the image compositing circuit with response data through the second channel when the first channel fails, and the image compositing circuit combines the response data and a pre-determined background into a second data signal to be the image signal; wherein the response data include at least one of a numerical digit and a status flag, or the pre-determined background includes at least one indicator of vehicle speed, motor rotation rate, engine coolant temperature and fuel level. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A display system comprising:
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a mainframe; a control circuit comprising an image processing unit and an image compositing circuit, communicating with the mainframe through a first channel and a second channel, and generating an image signal; and a display panel showing pictures according to the image signal; wherein the mainframe provides the image processing unit with image data, parameter data and control signals through both the first and second channels when the first channel works, and the image processing unit processes the image data and the parameter data and generates a first data signal to be the image signal; wherein the mainframe provides the image compositing circuit with response data through the second channel when the first channel fails, and the image compositing circuit combines the response data and a pre-determined background into a second data signal to be the image signal; wherein the control signals include a clock signal and an enabling signal having two states of logic high and low levels, and the image processing unit judges whether the first channel works or fails by the clock signal'"'"'s frequency, the clock signal'"'"'s cycle period and the enabling signal'"'"'s duration at the logic high level. - View Dependent Claims (9, 10, 11)
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12. A display system comprising:
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a mainframe; a control circuit comprising an image processing unit and an image compositing unit, communicating with the mainframe through a first channel and a second channel, and generating an image signal; and a display panel showing pictures according to the image signal; wherein the mainframe provides the image processing unit with image data, parameter data and control signals through both the first and second channels when the first channel works, and the image processing unit processes the image data and the parameter data and generates a first data signal to be the image signal; wherein the mainframe provides the image compositing circuit with response data through the second channel when the first channel fails, and the image compositing circuit combines the response data and a pre-determined background into a second data signal to be the image signal; wherein the control signals include a clock signal and a horizontal synchronization signal having two states of logic high and low levels, and the image processing unit judges whether the first channel works or fails by the clock signal'"'"'s frequency, the clock signal'"'"'s cycle period and the horizontal synchronization signal'"'"'s cycle period. - View Dependent Claims (13, 14, 15)
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Specification