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`Dec. 29, 2009
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`Sheet 1 of 16
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`US 7,639,849 B2
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`U.S. Patent
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`Dec. 29, 2009
`
`Sheet 2 of 16
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`US 7,639,849 B2
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`
`
`Drive signals (row and column s
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`, power)
`ignals
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`Fig. 4
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`U.S. Patent
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`Dec. 29, 2009
`
`Sheet 3 of 16
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`US 7,639,849 B2
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`N
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`Fig. 5
`
`Fig. 8
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`
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`U.S. Patent
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`Dec. 29, 2009
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`Sheet 4 of 16
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`US 7,639,849 B2
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`(CCDPixels) oan
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`U.S. Patent
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`Dec. 29, 2009
`
`Sheet 5 of 16
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`US 7,639,849 B2
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`Individual Pixel!
`Luminance
`
`30
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`nn.
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`(100% drive)
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`Digital
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`Fig. 7
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`
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`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 6 of 16
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`US 7,639,849 B2
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`
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`
`
`U.S. Patent
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`Dec. 29, 2009
`
`Sheet 7 of 16
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`US 7,639,849 B2
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`Individual Pixel
`Luminance
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`or DAC
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`pixel clock
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`
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`DISPLAY CONTROLLER
`
`Fig. 11
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`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 8 of 16
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`US 7,639,849 B2
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`1000
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`contrastsensitivity(@500cd/m?)
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`160
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`10
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`FIG. 12
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`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 9 of 16
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`US 7,639,849 B2
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`red
`
`blue
`
`FIG. 13A
`
`FIG. 13B
`
`RBG RBG RBG RBGRBG RBG RBG RBG RBG RBG RBG RBG subpixel
`
`FIG. 13C
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`
`
`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 10 of 16
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`US 7,639,849 B2
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`Dec. 29, 2009
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`Sheet 11 of 16
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`US 7,639,849 B2
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`Dec. 29, 2009
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`Sheet 12 of 16
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`Dec. 29, 2009
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`Sheet 13 of 16
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`US 7,639,849 B2
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`for each of a plurality of pixels of a
`display, obtaining a measure of a
`light-output response
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`
`
`T100
`
`T200
`
`modifying a mapthat is
`based on the measures
`
`
`T300|obtaining a display signal
`2 based on the modified map
`
`and an image signal
`
`FIG. 21
`
`
`
`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 14 of 16
`
`US 7,639,849 B2
`
`T100
`
`for each of a plurality of pixels of a
`display, obtaining a measure of a
`light-output response
`
`map andan imagesignal
`
`creating a light-output map
`based on the measures
`
`modifying the light-output
`map according to an image
`characteristic
`
`calculating a correction
`map based on the modified
`light-output map
`
`obtaining a display signal
`based on the correction
`
`FIG, 22
`
`
`
`US7,639,849 B2
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`T100
`
`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 15 of 16
`
`for each of a plurality ofpixels of a
`display, obtaining a measure of a
`light-output response
`
`creating a light-output map
`based on the measures
`
`image signal
`
`calculating a correction
`map based on the light-
`output map
`
`modifying the correction
`map according to an image
`characteristic
`
`obtaining a display signal
`based on the modified
`correction map and an
`
`FIG. 23
`
`
`
`U.S. Patent
`
`Dec. 29, 2009
`
`Sheet 16 of 16
`
`US 7,639,849 B2
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`
`
`correction
`circuit 120
`
`transformation
`circuit 110
`
`FIG. 24
`
`
`
`
`
`video memory 40
`
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`correction
`circuit 120
`
`
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`transformation
`circuit 110
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`display 130
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`FIG. 25
`
`correction
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`transformation
`circuit 110
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`circuit 120
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`modifying
`circuit 130
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`FIG. 26
`
`
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