Image display apparatus and correction method of image signal

Abstract

An image display apparatus including a plurality of pixels, a drive circuit for outputting drive signals for driving the pixels, and a correction circuit for correcting an input signal corresponding to a predetermined pixel with a correction value to output a corrected input signal to a side of the drive circuit, wherein the apparatus adopts as the correction value a value reflecting drive states of pixels located in the neighborhood of the predetermined pixel, the value being one having received an adjustment according to a nonlinear characteristic between a value of the input signal and a gray-level display of the pixel on the basis of the value of the input signal corresponding to the predetermined pixel.

1 - 18 . (canceled) 
   
   
       19 . An image display apparatus comprising:
 a plurality of pixels including first and second pixels neighboring each other, each pixel including (a) a device generating energy rays and (b) a luminous body irradiated with the energy rays to emit light according to an amount of the energy rays so as to display in a gray level;   a correction circuit for correcting an input data corresponding to the gray level of the first pixel on the basis of a correction value, and for outputting corrected data by correcting the input data; and   a drive circuit for driving the first pixel according to the corrected data,   wherein the correction value is obtained by adjusting a value in accordance with a nonlinear characteristic between the input data corresponding to the gray level which the first pixel displays and the gray level which the first pixel displays,   wherein a part of the energy rays generated by driving the device of the second pixel irradiates the luminous body of the first pixel, and   wherein the value to be adjusted corresponds to an amount of the part of the energy rays.   
   
   
       20 . The image display apparatus according to  claim 19 , wherein the value to be adjusted is determined based on the input data corresponding to a gray level which the second pixel displays. 
   
   
       21 . The image display apparatus according to  claim 19 , wherein a gray level corresponding to the corrected data is lower than the gray level corresponding to the input data. 
   
   
       22 . The image display apparatus according to  claim 19 , wherein the device of the second pixel is driven at a timing different from a timing when the device of the first pixel is driven. 
   
   
       23 . The image display apparatus according to  claim 19 , wherein the device of the second pixel is driven at the same timing as that at which the device of the first pixel is driven. 
   
   
       24 . The image display apparatus according to  claim 19 , wherein the plurality of pixels further includes a third pixel which neighbors the first pixel, and
 wherein the image display apparatus further comprises a shielding member for shielding the luminous body of the first pixel from a part of the energy rays generated by driving the device of the third pixel.   
   
   
       25 . The image display apparatus according to  claim 19 , wherein the drive circuit outputs a modulating signal to drive the device of each of the pixels on the basis of the corrected data. 
   
   
       26 . The image display apparatus according to  claim 19 , wherein the energy rays are an electron beam. 
   
   
       27 . The image display apparatus according to  claim 26 , wherein the part of the electron beam, which is generated by driving the device of the second pixel, and which irradiates the luminous body of the first pixel, is an electron beam radiated from the luminous body of the second pixel. 
   
   
       28 . A television apparatus, comprising:
 a receiving unit for receiving television signals; and   the image display apparatus according to  claim 19  displaying an image in accordance with the television signals as the input data.   
   
   
       29 . An image display apparatus comprising:
 a plurality of pixels including first and second pixels neighboring each other, each pixel including (a) a device generating energy rays and (b) a luminous body irradiated with the energy rays to emit light according to an amount of the energy rays so as to display in a gray level;   a shielding member for intercepting a part of the energy rays generated by driving the device of the second pixel to prevent the part of the energy rays from irradiating the luminous body of the first pixel;   a correction circuit for correcting an input data corresponding to the gray level of the first pixel on the basis of a correction value, and for outputting corrected data by correcting the input data; and   a drive circuit for driving the first pixel according to the corrected data,   wherein the correction value is obtained by adjusting a value in accordance with a nonlinear characteristic between the input data corresponding to the gray level which the first pixel displays and the gray level which the first pixel displays, and   wherein the value to be adjusted corresponds to an amount of the part of the energy rays.   
   
   
       30 . The image display apparatus according to  claim 29 , wherein the value to be adjusted is determined based on the input data corresponding to a gray level which the second pixel displays. 
   
   
       31 . The image display apparatus according to  claim 29 , wherein a gray level corresponding to the corrected data is higher than the gray level corresponding to the input data. 
   
   
       32 . The image display apparatus according to  claim 29 , wherein the device of the second pixel is driven at a timing different from a timing when the device of the first pixel is driven. 
   
   
       33 . The image display apparatus according to  claim 29 , wherein the device of the second pixel is driven at the same timing when the device of the first pixel is driven. 
   
   
       34 . The image display apparatus according to  claim 29 , wherein the plurality of pixels further includes a third pixel which neighbors the first pixel, and
 wherein the luminous body of the first pixel is irradiated with a part of the energy rays generated by driving the device of the third pixel.   
   
   
       35 . The image display apparatus according to  claim 29 , further comprising a drive circuit for outputting a modulating signal to drive the device of each of the pixels, on the basis of the corrected data. 
   
   
       36 . The image display apparatus according to  claim 29 , wherein the energy rays are an electron beam. 
   
   
       37 . The image display apparatus according to  claim 36 , wherein the part of the electron beam, which is generated by driving the device of the second pixel, and which is intercepted by the shielding member to prevent the part of the electron beam from irradiating the luminous body of the first pixel, is radiated from the luminous body of the second pixel. 
   
   
       38 . A television apparatus, comprising:
 a receiving unit for receiving television signals; and   the image display apparatus according to  claim 29  displaying an image in accordance with the television signals as the input data.