Serial sampling video signal driving apparatus with improved color rendition

Claim 2

A serial sampling video signal driving apparatus that receives a plurality of different color video signals in order to drive a matrix-type color display, comprising: serial sampling means for simultaneously receiving the plurality of different color video signals, for sampling the plurality of different color video signals in a cyclic fashion, and for providing sampled values to the matrix-type color display; and delay means, coupled to said serial sampling means, for delaying at least one of the plurality of different color video signals before being inputted to said serial sampling means, so said sampling means simultaneously receives the plurality of different color video signals at different phases and samples the plurality of color video signals at the same phase, thereby compensating for differences in sampling times in said serial sampling means; wherein said delay means leaves a first color video signal among said plurality of different color video signals undelayed, and delays successive remaining color video signals among said plurality of different color video signals by an amount equal to a sampling time difference between the successive remaining color video signals among said plurality of different color video signals.

Claim 3

The apparatus of claim 1, wherein said plurality of different color video signals are three color video signals, said three color video signals being synchronized with a dot clock having a period.

Claim 4

The apparatus of claim 2, wherein said delay means leaves one of said three color video signals undelayed, delays another of said three color video signals by one-third of said period, and delays another of said three color video signals by two-thirds of said period.

Claim 5

The apparatus of claim 2, wherein said three color video signals correspond to red, green, and blue.

Claim 6

The apparatus of claim 1, further comprising signal switching means for selectively decoupling said delay means from said serial sampling means and allowing all of said plurality of different color video signals to be input to said serial sampling means without phase delay.

Claim 7

A serial sampling video signal driving method that processes a plurality of different color video signals in order to drive a matrix-type color display, comprising the steps of: (a) delaying at least one of the plurality of different color video signals; (b) simultaneously receiving the plurality of different color video signals at different phases; (c) sampling the plurality of different color video signals at the same phase in a cyclic fashion; and (d) providing sampled values to the matrix-type color display; wherein said step (a) compensates for differences in sampling times of said step (c); wherein said step (a) leaves a first color video signal among the plurality of different color video signals undelayed and delays successive remaining color video signals of the plurality of different color video signals by an amount equal to a sampling time difference between the successive remaining color video signals among of the plurality of different color video signals.

Claim 8

A serial sampling video signal driving method that processes a plurality of different color video signals in order to drive a matrix-type color display, comprising the steps of: (a) delaying at least one of the plurality of different color video signals; (b) simultaneously receiving the plurality of different color video signals at different phases; (c) sampling the plurality of different color video signals at the same phase in a cyclic fashion; and (d) providing sampled values to the matrix-type color display; wherein said step (a) compensates for differences in sampling times of said step (c); wherein said step (a) leaves a first color video signal among the plurality of different color video signals undelayed and delays successive remaining color video signals of the plurality of different color video signals by an amount equal to a sampling time difference between the successive remaining color video signals among of the plurality of different color video signals.

Claim 9

The method of claim 6, wherein the plurality of different color video signals are three color video signals, the three color video signals being synchronized with a dot clock having a period.

Claim 10

The method of claim 7, wherein said step (a) leaves one of the three color video signals undelayed, delays another of the three color video signals by one-third of the certain period, and delays a third of the three color video signals by two-thirds of the certain period.

Claim 11

The method of claim 7, wherein the three color video signals correspond to red, green, and blue.

Claim 12

The method of claim 6 further comprising the step of: (e) selectively bypassing said step (a) to allow all of the plurality of different color video signals to be sampled without phase delay.

Claim 13

A serial sampling video signal driving apparatus that receives a first video signal, a second video signal and a third video signal in order to drive a matrix-type color display, comprising: serial sampling means for simultaneously receiving a fourth video signal, a fifth video signal and a sixth video signal at different phases, for successively sampling the fourth through sixth video signals at the same phase in a cyclic fashion at predetermined intervals, and for providing sampled values to said matrix-type color display, the predetermined intervals being sampling time differences between a sampling time of said fourth video signal and a sampling time of the fifth video signal and between the sampling time of the fifth video signal and a sampling time of the sixth video signal; and delay means for simultaneously receiving the first video signal, the second video signal and the third video signal at the same phase, for generating a delayed second signal by delaying the second video signal and a delayed third video signal by delaying the third video signal, and for generating the fourth video signal from the first video signal, the fifth video signal from the delayed second video signal and the sixth video signal from the delayed third video signal, before the fourth through sixth video signals are input to said serial sampling means, thereby compensating for said sampling time differences in said serial sampling means; wherein said delay means generates the fourth video signal by leaving the first video signal undelayed, generates the fifth video signal by delaying the second video signal by an amount equal to the sampling time differences, and generates the sixth video signal by delaying the third video signal by an amount equal to twice the sampling time differences.

Claim 14

A serial sampling video signal driving apparatus that receives a first video signal, a second video signal and a third video signal in order to drive a matrix-type color display, comprising: serial sampling means for simultaneously receiving a fourth video signal, a fifth video signal and a sixth video signal at different phases, for successively sampling the fourth through sixth video signals at the same phase in a cyclic fashion at predetermined intervals, and for providing sampled values to said matrix-type color display, the predetermined intervals being sampling time differences between a sampling time of said fourth video signal and a sampling time of the fifth video signal and between the sampling time of the fifth video signal and a sampling time of the sixth video signal; and delay means for simultaneously receiving the first video signal, the second video signal and the third video signal at the same phase, for generating a delayed second signal by delaying the second video signal and a delayed third video signal by delaying the third video signal, and for generating the fourth video signal from the first video signal, the fifth video signal from the delayed second video signal and the sixth video signal from the delayed third video signal, before the fourth through sixth video signals are input to said serial sampling means, thereby compensating for said sampling time differences in said serial sampling means; wherein said delay means generates the fourth video signal by leaving the first video signal undelayed, generates the fifth video signal by delaying the second video signal by an amount equal to the sampling time differences, and generates the sixth video signal by delaying the third video signal by an amount equal to twice the sampling time differences.

Claim 15

The apparatus of claim 11, wherein the first video signal, the second video signal, and the third video signal are color video signals, the three color video signals being synchronized with a dot clock having period.

Claim 16

The apparatus of claim 12, wherein the three color video signals correspond to red, green, and blue.

Claim 17

The apparatus of claim 11, further comprising signal switching means for selectively decoupling said delay means from said serial sampling means and allowing all of the first video signal, the second video signal and the third video signal to be input to said serial sampling means without phase delay.

Claim 18

A serial sampling video signal driving method that receives a first video signal, a second video signal and a third video signal in order to drive a matrix-type color display, comprising the steps of: (a)(1) simultaneously receiving a fourth video signal, a fifth video signal and a sixth video signal at different phases, (a)(2) successively sampling the fourth through sixth video signals at the same phase in a cyclic fashion at predetermined intervals, (a)(3) providing sampled values to the matrix-type color display, the predetermined intervals being sampling time differences between a sampling time of the fourth video signal and a sampling time of the fifth video signal and between the sampling time of the fifth video signal and a sampling time of the sixth video signal; and (b) simultaneously receiving the first video signal, the second video signal and the third video signal and generating a delayed second signal by delaying the second video signal and a delayed third video signal by delaying the third video signal, and generating the fourth video signal from the first video signal, the fifth video signal from the delayed second video signal and the sixth video signal from the delayed third video signal, before the fourth through sixth video signals are received in said step (a)(1), thereby compensating for the sampling time differences in said step (a)(3); wherein said step (b) generates the fourth video signal by leaving the first video signal undelayed, generates the fifth video signal by delaying the second video signal by an amount equal to the sampling time differences, and generates the sixth video signal by delaying the third video signal by an amount equal to twice the sampling time differences.

Claim 19

A serial sampling video signal driving method that receives a first video signal, a second video signal and a third video signal in order to drive a matrix-type color display, comprising the steps of: (a)(1) simultaneously receiving a fourth video signal, a fifth video signal and a sixth video signal at different phases, (a)(2) successively sampling the fourth through sixth video signals at the same phase in a cyclic fashion at predetermined intervals, (a)(3) providing sampled values to the matrix-type color display, the predetermined intervals being sampling time differences between a sampling time of the fourth video signal and a sampling time of the fifth video signal and between the sampling time of the fifth video signal and a sampling time of the sixth video signal; and (b) simultaneously receiving the first video signal, the second video signal and the third video signal and generating a delayed second signal by delaying the second video signal and a delayed third video signal by delaying the third video signal, and generating the fourth video signal from the first video signal, the fifth video signal from the delayed second video signal and the sixth video signal from the delayed third video signal, before the fourth through sixth video signals are received in said step (a)(1), thereby compensating for the sampling time differences in said step (a)(3); wherein said step (b) generates the fourth video signal by leaving the first video signal undelayed, generates the fifth video signal by delaying the second video signal by an amount equal to the sampling time differences, and generates the sixth video signal by delaying the third video signal by an amount equal to twice the sampling time differences.

Claim 20

The method of claim 15, wherein said first video signal, said second video signal, and said third video signal are color video signals, said three color video signals being synchronized with a dot clock having period.

Claim 21

The method of claim 16, wherein the three color video signals correspond to red, green, and blue.

Claim 22

The method of claim 15 further comprising the step of: (c) selectively bypassing said step (b) to allow the first video signal, the second video signal and the third video signal to be sampled without phase delay.