CN-118262680-B - Display method and device, storage medium and electronic equipment

CN118262680BCN 118262680 BCN118262680 BCN 118262680BCN-118262680-B

Abstract

The disclosure provides a display method and device, a storage medium and electronic equipment, and relates to the technical field of field sequential display. The method comprises the steps of determining the width of a color separation area positioned at the edge of a display target based on eye movement speed information acquired by observing the display target in field sequential display, determining offset of a plurality of subfields forming the field sequential display according to the width of the color separation area, performing displacement compensation on an image frame to be displayed according to the offset of the subfields, determining a displacement-compensated image frame to be displayed, and rendering and displaying the displacement-compensated image frame to be displayed. The color separation eliminating method and device achieve the effect of eliminating the color separation phenomenon on the basis of not affecting the display effect.

Inventors

WU QIONG
CHEN LILI
LV YAOYU
YAO CHAOQUAN

Assignees

京东方科技集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20240422

Claims (14)

1. A display method, comprising: determining a color separation area width at an edge of a display target based on eye movement speed information acquired by observing the display target in field sequential display; Determining the offset of a plurality of subfields forming the field sequential display according to the width of the color separation region; Performing displacement compensation on the image frame to be displayed according to the offset of the plurality of subfields, and determining the image frame to be displayed after the displacement compensation; rendering and displaying the image frame to be displayed after the displacement compensation; determining a color separation area width at an edge of a display target based on eye movement speed information acquired by observing the display target in field sequential display, comprising: acquiring eye image information when observing a display target in field sequence display, and determining eye movement speed information of the eye for observing the display target in the field sequence display; Determining the width of the color separation area positioned at the edge of the display target according to the eye movement speed information; determining the width of the color separation area at the edge of the display target according to the eye movement speed information comprises the following steps: Inputting the eye movement speed information into a relation function of the eye movement speed and the color separation area width, and determining the color separation area width at the edge of the display target; the construction process of the eye movement speed and color separation area width relation function comprises the following steps: Setting the eyeball diameter, the test target width and the field sequence display equipment refreshing frequency as fixed values, taking the eye movement speed as a control variable, and establishing an eye movement speed and color separation area width function calculation formula, wherein the eye movement speed and color separation area width function calculation formula comprises fitting parameters, and the eye movement speed, the eyeball diameter, the test target width and the field sequence display equipment refreshing frequency are control parameters related to the color separation area width; according to a set initial value of the test step length, the test target moves on the field sequence display equipment at a constant speed according to a test speed, and the width of a test color separation area positioned at the edge of the test target is obtained; determining a test eye movement speed according to the test speed; Gradually increasing the test step length to gradually reduce the width of the test color separation area until the width of the test color separation area is zero, determining the current test step length as the sub-field compensation displacement corresponding to the test eye movement speed, wherein the increase of the test step length takes pixels as a unit; And fitting parameters of the eye movement speed and color separation area width function calculation formula according to the test eye movement speed and the subfield compensation displacement, and determining an eye movement speed and color separation area width relation function.
2. The display method according to claim 1, wherein acquiring eye image information when observing a display target in field sequential display, determining eye movement speed information when an eye observes the display target in the field sequential display, comprises: acquiring eye image information when a display target is displayed in the observation field sequence display, identifying a pupil area in the eye image information, and determining the pupil position at the current moment; calculating a plurality of track change positions of the pupil in the next period according to the pupil position at the current moment; connecting a plurality of track change positions of the pupil in the next period into a line, and determining an eye movement track in the next period; and determining the eye movement speed information of the next period according to the eyeball physical model and the eye movement track of the next period, wherein the eye movement speed information comprises an eye movement speed value and an eye movement speed direction.
3. The display method according to claim 1, wherein moving the test object on the field sequential display apparatus at a constant speed according to a set initial value of a test step, and obtaining a test color separation area width at an edge of the test object, comprises: Determining display time differences among a plurality of subfields constituting field sequential display according to a refresh frequency of the field sequential display device set to a fixed value; Determining the position relation between the plurality of subfields and a test target according to the display time difference and the test speed among the plurality of subfields forming the field sequence display; Performing displacement compensation on the test image frame displaying the test object according to the set initial value of the test step length and the position relation between the plurality of subfields and the test object, and determining the compensated test image frame; And rendering and displaying the compensated test image frame so that the test target moves on the field sequential display device at a uniform speed according to the test speed, and acquiring the width of a test color separation area positioned at the edge of the test target.
4. The display method of claim 1, wherein determining a test eye movement speed based on the test rate comprises: Acquiring a field angle, an observation distance, a lens magnification and a pixel size of field sequential display equipment; determining a display position of the test target in a test image frame according to the test rate; and determining the test eye movement speed according to the display position of the test object in the test image frame, the field angle of the field sequential display device, the observation distance, the lens magnification and the pixel size and combining the refresh frequency of the field sequential display device set to be a fixed value.
5. The display method according to claim 1, wherein gradually increasing the test step size to gradually decrease the test color separation area width until the test color separation area width is zero, determining the current test step size as the subfield compensation displacement corresponding to the test eye movement speed, comprises: Increasing a test step from an initial value in units of pixels to update the test step; Acquiring the corresponding test color separation area width according to the updated test step length; Gradually increasing the test step length to gradually reduce the width of the obtained corresponding test color separation area until the width of the test color separation area is zero, and determining the number of pixels of the current updated test step length as the sub-field compensation displacement corresponding to the test eye movement speed.
6. The display method according to claim 1, wherein fitting parameters of the eye movement speed and color separation region width function calculation formula to determine an eye movement speed and color separation region width relation function according to the test eye movement speed and the subfield compensation displacement, comprises: correlating the eye movement speed and the corresponding sub-field compensation displacement into a group of arrays to complete a group of tests; changing the test rate of the test target to perform multiple groups of tests, and determining multiple groups of arrays; Carrying the multiple groups of arrays into the eye movement speed and color separation area width function calculation formula to perform quadratic polynomial fitting, and determining the value of the fitting parameter; And substituting the value of the fitting parameter into the calculation formula of the eye movement speed and color separation area width function, and determining the relation function of the eye movement speed and the color separation area width.
7. The display method according to claim 1, wherein determining the offset of the plurality of subfields constituting the field sequential display according to the color separation region width comprises: Determining a display time difference between a plurality of subfields constituting the field sequential display based on a field sequential display device refresh frequency; Determining the position relation between the plurality of subfields and a display target according to the display time difference among the plurality of subfields forming the field sequential display and the eye movement speed information; And determining the offset of a plurality of subfields forming the field sequential display according to the position relation between the subfields and the display target and the width of the color separation area.
8. The display method according to claim 7, wherein when a plurality of subfields constituting the field sequential display are a first subfield, a second subfield, and a third subfield, the positional relationship between the plurality of subfields and a display target is such that the first subfield, the second subfield, and the third subfield are sequentially close to an edge of the display target, and the third subfield is immediately adjacent to the display target; Determining the offset of the plurality of subfields forming the field sequential display according to the positional relationship between the plurality of subfields and the display target and the color separation region width, comprising: And determining that the first sub-field offset is three times the color separation area width, the second sub-field offset is two times the color separation area width and the first sub-field offset is the color separation area width according to the position relation between the plurality of sub-fields and the display target and the color separation area width.
9. The display method of claim 8, wherein the first subfield is a red subfield, the second subfield is a green subfield, and the third subfield is a blue subfield.
10. The display method according to claim 1, wherein performing displacement compensation on the image frame to be displayed according to the offsets of the plurality of subfields, determining the image frame to be displayed after the displacement compensation, comprises: And carrying out displacement compensation on the subfields of each pixel of the image frame to be displayed according to the offset of the subfields and the opposite direction of the eye movement speed information, and determining the image frame to be displayed after displacement compensation, wherein each pixel of the image frame to be displayed corresponds to a plurality of subfields.
11. A display device, comprising: A color separation area width determining module, configured to determine a color separation area width located at an edge of a display target based on eye movement speed information acquired by observing the display target in field sequential display; the sub-field offset determining module is used for determining the offsets of a plurality of sub-fields forming the field sequential display according to the width of the color separation area; The displacement-compensated image frame to be displayed determining module is used for performing displacement compensation on the image frame to be displayed according to the offset of the plurality of subfields and determining the image frame to be displayed after the displacement compensation; the rendering display module is used for rendering and displaying the displacement-compensated image frames to be displayed; determining the width of the color separation area at the edge of the display target according to the eye movement speed information comprises the following steps: Inputting the eye movement speed information into a relation function of the eye movement speed and the color separation area width, and determining the color separation area width at the edge of the display target; the construction process of the eye movement speed and color separation area width relation function comprises the following steps: Setting the eyeball diameter, the test target width and the field sequence display equipment refreshing frequency as fixed values, taking the eye movement speed as a control variable, and establishing an eye movement speed and color separation area width function calculation formula, wherein the eye movement speed and color separation area width function calculation formula comprises fitting parameters, and the eye movement speed, the eyeball diameter, the test target width and the field sequence display equipment refreshing frequency are control parameters related to the color separation area width; according to a set initial value of the test step length, the test target moves on the field sequence display equipment at a constant speed according to a test speed, and the width of a test color separation area positioned at the edge of the test target is obtained; determining a test eye movement speed according to the test speed; Gradually increasing the test step length to gradually reduce the width of the test color separation area until the width of the test color separation area is zero, determining the current test step length as the sub-field compensation displacement corresponding to the test eye movement speed, wherein the increase of the test step length takes pixels as a unit; And fitting parameters of the eye movement speed and color separation area width function calculation formula according to the test eye movement speed and the subfield compensation displacement, and determining an eye movement speed and color separation area width relation function.
12. An electronic device, comprising: Processor, and A memory for storing executable instructions of the processor; Wherein the processor is configured to perform the display method of any one of claims 1-10 via execution of the executable instructions.
13. A computer readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the display method of any of claims 1 to 10.
14. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the display method of any one of claims 1-10.

Description

Display method and device, storage medium and electronic equipment Technical Field The disclosure relates to the field of field sequential display technology, and in particular, to a display method and device, a storage medium and electronic equipment. Background In a conventional lcd, color filters are disposed on pixels to filter light sources, and light passing through the color filters is spatially mixed to realize color display. However, the color filter may reduce the transmittance of the light emitted from the light source. The field sequential display is a light mixing on a time sequence without a color filter, a pixel is divided into a plurality of subfields with different colors, the different subfields are sequentially lightened according to the time sequence, and the time light mixing is realized due to the visual persistence of human eyes, so that the color image display is realized, and the field sequential display has the advantages of low power consumption and high resolution compared with the traditional liquid crystal display. In display applications, when the eye moves, the component subfields of the display object reach the retina of the eye at different times, so that impact points are formed at different positions of the retina, when the eye moves at a higher speed, the impact points are more seriously separated, and Color separation areas formed by multiple Color lines are seen at the edge of the display object, so that Color separation phenomenon (CBU) is caused. The color separation phenomenon can cause visual fatigue, tension and interference to visual experience, and further development and application of a field sequential display mode are hindered. How to accurately and effectively inhibit the occurrence of color separation phenomenon becomes a problem to be solved. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art. Disclosure of Invention The present disclosure provides a display method and apparatus, a storage medium, and an electronic device, which overcome the problem of color separation phenomenon at least to some extent. Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure. According to one aspect of the present disclosure, there is provided a display method including: determining a color separation area width at an edge of a display target based on eye movement speed information acquired by observing the display target in field sequential display; Determining the offset of a plurality of subfields forming the field sequential display according to the width of the color separation region; Performing displacement compensation on the image frame to be displayed according to the offset of the plurality of subfields, and determining the image frame to be displayed after the displacement compensation; rendering and displaying the image frame to be displayed after the displacement compensation. In some embodiments, determining a color separation area width at an edge of a display target in a field sequential display based on eye movement speed information acquired by observing the display target includes: acquiring eye image information when observing a display target in field sequence display, and determining eye movement speed information of the eye for observing the display target in the field sequence display; and determining the width of the color separation area positioned at the edge of the display target according to the eye movement speed information. In some embodiments, acquiring eye image information while observing a display target in a field sequential display, determining eye movement velocity information of an eye observing the display target in the field sequential display, includes: acquiring eye image information when a display target is displayed in the observation field sequence display, identifying a pupil area in the eye image information, and determining the pupil position at the current moment; calculating a plurality of track change positions of the pupil in the next period according to the pupil position at the current moment; connecting a plurality of track change positions of the pupil in the next period into a line, and determining an eye movement track in the next period; and determining the eye movement speed information of the next period according to the eyeball physical model and the eye movement track of the next period, wherein the eye movement speed information comprises an eye movement speed value and an eye movement speed direction. In some embodiments, determining the color separation area width at the display target edge based on the eye movement speed information comprises: And inputting the eye mo