Display drive method and apparatus, and method and apparatus for generating sampling region

Patent metadata

Field	Value
Publication number	US-2016379533-A1
Application number	US-201514904723-A
Country	US
Kind code	A1
Filing date	Jul 15, 2015
Priority date	Mar 2, 2015
Publication date	Dec 29, 2016
Grant date	—

Abstract

The present disclosure provides a display drive method for driving a 3D display device. The method comprises: dividing a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively, and determining a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and for each subpixel of each view, determining brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view. The present disclosure further provides a display drive apparatus and a method and apparatus for generating a sampling region.

First claim

1 - 10 . (canceled)

11 . A display drive method for driving a 3D display device, the 3D display device comprising: a pixel array and a grating array, the pixel array comprising: a plurality of first view pixel groups; and a plurality of second view pixel groups; wherein the plurality of first view pixel groups and second view pixel groups are arranged alternately in both a row direction and a column direction, wherein each view pixel group includes M*N subpixels arranged in one column, wherein N represents a number of types of subpixel colors and M is an integer greater than or equal to 3 wherein the grating array shields a first side of the first view pixel group and a second side of the second view pixel group in the column direction, and wherein the first side and the second side are two opposite sides, the method comprising:
dividing a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively; determining a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and for each subpixel of each view, determining brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view, wherein a midpoint of a connection line between a center of each subpixel and a center of each of respective neighboring subpixels of the same type is located on a boundary of the rectangular sampling region of the subpixel, subpixels being of the same type as one subpixel referring to the subpixels which belong to the same view and are in the same color as the subpixel.

12 . The method according to claim 11 , wherein N has a value of 3, and the pixel array is a delta pixel array.

13 . The method according to claim 12 , wherein a length of each subpixel in the row direction is twice that in the column direction, and each theoretical pixel unit corresponds to two neighboring subpixels in the column direction.

14 . The method according to claim 11 , wherein the determining the brightness of the subpixel comprises:
for each subpixel, determining a respective area of overlap between its rectangular sampling region and each of a plurality of theoretical pixel units covered by the sampling region; determining a respective product of the respective area of overlap corresponding to each theoretical pixel unit and the gray value corresponding to the color of the subpixel in the original display information corresponding to the theoretical pixel unit; and determining the brightness of the subpixel based on an area of the rectangular sampling region and a sum of respective products.

15 . The method according to claim 11 , further comprising:
determining a midpoint of a connection line between a center of the subpixel and a center of each of respective neighboring subpixels of the same type in the pixel array; and generating the rectangular sampling region for the subpixel such that the midpoint of each connection line is located on a boundary of the rectangular sampling region.

16 . A display drive apparatus for driving a 3D display device, the 3D display device comprising a pixel array and a grating array, the pixel array comprising a plurality of first view pixel groups and a plurality of second view pixel groups, the plurality of first view pixel groups and second view pixel groups being arranged alternately in both a row direction and a column direction, each view pixel group including M*N subpixels arranged in one column, where N represents a number of types of subpixel colors and M is an integer greater than or equal to 3, the grating array shielding a first side of the first view pixel group and a second side of the second view pixel group in the column direction, and the first side and the second side being two opposite sides, the display drive apparatus comprising:
a pixel dividing unit implemented by a processor and configured to divide a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively, and determine a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and a brightness determining unit implemented by the processor and configured to, for each subpixel of each view, determine brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view, wherein a midpoint of a connection line between a center of each subpixel and a center of each of respective neighboring subpixels of the same type is located on a boundary of the rectangular sampling region of the subpixel, subpixels being of the same type as one subpixel referring to the subpixels which belong to the same view and are in the same color as the subpixel.

17 . The display drive apparatus according to claim 16 , wherein N has a value of 3, and the pixel array is a delta pixel array.

18 . The display drive apparatus according to claim 17 , wherein a length of each subpixel in the row direction is twice that in the column direction, and each theoretical pixel unit corresponds to two neighboring subpixels in the column direction.

19 . The display drive apparatus according to claim 17 , wherein the brightness determining unit is configured to:
for each subpixel, determine a respective area of overlap between its rectangular sampling region and each of a plurality of theoretical pixel units covered by the sampling region; determine a respective product of the respective area of overlap corresponding to each theoretical pixel unit and the gray value corresponding to the color of the subpixel in the original display information corresponding to the theoretical pixel unit; and determine the brightness of the subpixel based on an area of the rectangular sampling region and a sum of respective products.

20 . An apparatus for generating a sampling region of each subpixel in a pixel array of a 3D display device, the pixel array comprising:
a plurality of first view pixel groups and a plurality of second view pixel groups, the plurality of first view pixel groups and second view pixel groups being arranged alternately in both a row direction and a column direction, each view pixel group including M*N subpixels arranged in one column, where N represents a number of types of subpixel colors and M is an integer greater than or equal to 3, the apparatus comprising: an array unit dividing module configured to divide the pixel array into a plurality of array units, each array unit comprising a total of four neighboring pixel groups in two rows and two columns; and a sampling region generating module configured to: for each subpixel in any of the array units, determine a midpoint of a connection line between a center of the subpixel and a center of each of respective neighboring subpixels of the same type; generate a rectangular sampling region for the subpixel such that the midpoint of each connection line is located on a boundary of the rectangular sampling region; and generate rectangular sampling regions for corresponding subpixels in other array units in a manner in which the rectangular sampling region of the subpixel in any of the array units is generated.

21 . The method according to claim 12 , further comprising:
determining a midpoi

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Guo Renwei
• Dong Xue

Classifications

• H04N13/31

  using parallax barriers · CPC title

• G09G2300/0439

  Pixel structures · CPC title

• G09G2300/0404

  Matrix technologies · CPC title

• G09G2340/0457

  Improvement of perceived resolution by subpixel rendering · CPC title

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title