CN-121995646-A - Display device, design method thereof and image debugging method

CN121995646ACN 121995646 ACN121995646 ACN 121995646ACN-121995646-A

Abstract

The disclosure relates to a display device, a design method thereof and an image display method, and relates to the technical field of display. The display device comprises a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed in a first direction and a second direction in an array mode, the axial direction of each cylindrical lens and the second direction are provided with lens inclination angles, a region, overlapped with any cylindrical lens, of the display panel comprises a plurality of view point areas distributed in the first direction, one view point area comprises a plurality of sub-pixels, the design method comprises the steps of determining view point resolution according to size information of a target display panel and a specified view distance, determining the number of view point areas according to the view point resolution as the number of view points, and determining at least one lens inclination angle according to the number of view points.

Inventors

WEI WEI
PENG XIAOQING
ZHU JINYE
XUE HAILIN
WU KUN
LI ZHIXING

Assignees

京东方科技集团股份有限公司
北京京东方显示技术有限公司
北京京东方技术开发有限公司

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (20)

1. The design method of the display device is characterized in that the display device comprises a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of the cylindrical lenses and the second direction are provided with lens inclination angles, the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; The design method comprises the following steps: Determining viewpoint resolution according to the size information of the target display panel and the specified viewing distance; Determining the number of the viewpoint areas according to the viewpoint resolution ratio as the viewpoint number; And determining at least one lens inclination angle according to the viewpoint number.
2. The design method according to claim 1, wherein determining the boundary view resolution based on the size information of the target display panel and the specified viewing distance, comprises: Determining a reference viewpoint resolution according to the size information of the target display panel and the specified viewing distance; If the appointed visual distance is smaller than the critical visual distance, taking the larger one of the reference visual point resolution and the preset standard visual point resolution as the visual point resolution; and if the appointed sight distance is larger than the critical sight distance, taking the standard viewpoint resolution as the viewpoint resolution.
3. The design method according to claim 2, wherein the size information includes a length of the display area in the first direction and a width of the display area in the second direction, and wherein the reference viewpoint resolution satisfies the following relationship: Rhs=L/(2×S×tan(1/120)); Rvs=H/(2×S×tan(1/120)); Rhs is the component of the reference viewpoint resolution in the first direction, rvs is the component of the reference viewpoint resolution in the second direction, L is the length of the display area in the first direction, H is the width of the display area in the second direction, and S is the specified viewing distance.
4. The design method according to claim 1, wherein the number of viewpoints satisfies the following relation: N=(Rha×Rva)/(Rh×Rv); n is the number of the viewpoint areas, rha is the component of the panel resolution of the display panel in the first direction, rva is the component of the panel resolution in the second direction, rh is the component of the viewpoint resolution in the first direction, and Rv is the component of the viewpoint resolution in the second direction.
5. The design method according to claim 4, wherein the number of points of view further satisfies the following relation: N=N1×N2; N1=Rha/Rh; N2=Rva/Rv; N1∶N2=Rha∶Rva; n1 is the row reduction magnification, and N2 is the column reduction magnification.
6. The method according to claim 1, wherein determining at least one of the lens tilt angles according to the number of viewpoints, comprises: And obtaining an inclination angle range without mole patterns through simulation according to the viewpoint number, wherein the inclination angle of the lens is positioned in the inclination angle range.
7. The method of designing according to claim 6, wherein at least one of the lens tilt angles is determined based on the number of viewpoints, further comprising: And selecting an inclination angle range without mole patterns, with crosstalk lower than a specified crosstalk value and with color points less than a specified value from the inclination angle range through simulation according to the viewpoint number, wherein the inclination angle of the lens is positioned in the inclination angle range.
8. The design method according to any one of claims 1-7, further comprising: And determining lens parameters of the cylindrical lens with crosstalk lower than a specified crosstalk value through simulation, wherein the lens parameters comprise curvature radius, caliber, curved surface constant and higher-order aspheric coefficients.
9. The display device is characterized by comprising a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of each cylindrical lens is provided with a lens inclination angle with the second direction, the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; The lens inclination angle is [12.25 °,12.35 ° ] or [12.71 °,12.81 ° ].
10. The display device is characterized by comprising a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of each cylindrical lens is provided with a lens inclination angle with the second direction, the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; A boundary of orthographic projection of the cylindrical lens on the display panel is a viewpoint boundary of a sub-pixel of a viewpoint area overlapped with the boundary, and a distance between any sub-pixel and the viewpoint boundary of the sub-pixel in the first direction is a viewpoint distance of the sub-pixel; In the viewpoint area, the sub-pixels with the viewpoint distance smaller than a first distance or larger than a second distance are edge sub-pixels, and the sub-pixels with the viewpoint distance not smaller than the first distance and not larger than the second distance are center sub-pixels; The display device is configured such that at least part of the edge sub-pixels of at least one of the viewpoint areas are turned off and the center sub-pixel is turned on when displaying an image.
11. The display device according to claim 10, wherein the first distance and the second distance satisfy the following relationship: D1=Dmax-((Dmax-Dmin)/n); D2=Dmin+((Dmax-Dmin)/n); D1 is the first distance, D2 is the second distance, dmax is the viewpoint distance of the sub-pixel with the largest viewpoint distance in the viewpoint area, dmin is the viewpoint distance of the sub-pixel with the smallest viewpoint distance in the viewpoint area, n is more than or equal to 3, and n is a positive integer.
12. The display device is characterized by comprising a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of each cylindrical lens is provided with a lens inclination angle with the second direction, the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; A boundary of orthographic projection of the cylindrical lens on the display panel is a viewpoint boundary of a sub-pixel of a viewpoint area overlapped with the boundary, and a distance between any sub-pixel and the viewpoint boundary of the sub-pixel in the first direction is a viewpoint distance of the sub-pixel; In the viewpoint area, the sub-pixels with the viewpoint distance smaller than a first distance or larger than a second distance are edge sub-pixels, and the sub-pixels with the viewpoint distance not smaller than the first distance and not larger than the second distance are center sub-pixels; The display device is configured to generate target gray scales of the sub-pixels according to the acquired initial gray scales of the sub-pixels and a preset conversion relation, control the sub-pixels to display images in the target gray scales, and enable the brightness corresponding to the target gray scales of at least part of the edge sub-pixels to be smaller than the brightness corresponding to the initial gray scales.
13. The display device of claim 12, wherein the target gray level of at least some of the center subpixels corresponds to a greater brightness than the initial gray level.
14. The display device according to claim 12, wherein a sum of luminances of two of the edge sub-pixels whose viewpoint distances are equal from adjacent two of the viewpoint areas, respectively, is equal to a specified luminance.
15. The image display method of the display device is characterized in that the display device comprises a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, wherein the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of the cylindrical lenses and the second direction are provided with lens inclination angles, and the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; the image display method comprises the following steps: In debug mode: controlling each sub-pixel of the display device to display a test picture in a test gray scale; Detecting the angular spectrum of each viewpoint area of the display device to obtain angular spectrum lines reflecting the relation between the viewing angle and the brightness of each viewpoint area, wherein the angular spectrum lines are used as test angular spectrum lines of each viewpoint area, and the angular spectrum lines of two adjacent viewpoint areas are intersected; Taking the intersection position of the test angular spectral lines of the adjacent viewpoint areas as an adjustment reference, adjusting the test angular spectral lines to obtain target angular spectral lines, wherein the target angular spectral lines below the adjustment reference are converged compared with the test angular spectral lines; determining the reference gray scale of each sub-pixel under the test picture according to the target angular spectral line; establishing a conversion relation between the test gray scale and the reference gray scale for each sub-pixel; In the working mode: generating target gray scales of the sub-pixels according to the acquired initial gray scales of the sub-pixels and a preset conversion relation; And controlling each sub-pixel to display an image in the target gray scale.
16. The image display method according to claim 15, wherein a luminance of the target angular line above the adjustment reference is greater than a luminance of the test angular line at the same viewing angle.
17. The method of claim 16, wherein adjusting the test angular spectral line, further comprises: Reducing the test angular spectral line by a specified amplitude to obtain a reference angular spectral line; Taking the intersection position of the reference angular spectral lines of adjacent viewpoint areas as an adjustment benchmark, and converging the reference angular spectral lines below the adjustment benchmark by appointed convergence amplitude; And taking the intersection positions of the reference angular spectral lines of adjacent viewpoint areas as adjustment references, and increasing the reference angular spectral lines above the adjustment references by appointed increasing amplitude to obtain target angular spectral lines.
18. The image display method according to claim 17, wherein a sum of luminances of target angular lines of adjacent two of the viewpoint regions is equal to a sum of luminances of test angular lines of adjacent two of the viewpoint regions at the same viewing angle.
19. The method of claim 17, wherein determining the reference gray scale of each sub-pixel under the test frame based on the target angular spectrum line comprises: and changing the brightness contained in the target angle spectral line of each viewpoint area into gray scale by using the designated gamma curve to serve as reference gray scale.
20. An electronic device comprising the display device according to any one of claims 9-14.

Description

Display device, design method thereof and image debugging method Technical Field The disclosure relates to the technical field of display, and in particular relates to a display device, a design method of the display device and an image debugging method of the display device. Background In the naked eye 3D technology, the scheme for realizing 3D image display by a cylindrical lens method is widely applied, and the transmission of light rays is guided by the refraction of the cylindrical lens, so that a user can watch a 3D image. But the 3D display effect of the existing display device is still to be improved. 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 device, a design method of the display device, and an image debugging method of the display device, which can improve display effects. According to one aspect of the disclosure, a design method of a display device is provided, the display device comprises a display panel and a plurality of cylindrical lenses positioned on the light emitting side of the display panel, the display panel is provided with a display area and a peripheral area positioned outside the display area, the display panel comprises a plurality of sub-pixels positioned in the display area, each sub-pixel is distributed along a first direction and a second direction in an array manner, the axial direction of the cylindrical lenses and the second direction are provided with lens inclination angles, the area overlapped with any cylindrical lens in the display panel comprises a plurality of viewpoint areas distributed along the first direction, and one viewpoint area comprises a plurality of sub-pixels; The design method comprises the following steps: Determining viewpoint resolution according to the size information of the target display panel and the specified viewing distance; Determining the number of the viewpoint areas according to the viewpoint resolution ratio as the viewpoint number; And determining at least one lens inclination angle according to the viewpoint number. In one exemplary embodiment of the present disclosure, determining a boundary view resolution according to size information of a target display panel and a specified viewing distance includes: Determining a reference viewpoint resolution according to the size information of the target display panel and the specified viewing distance; If the appointed visual distance is smaller than the critical visual distance, taking the larger one of the reference visual point resolution and the preset standard visual point resolution as the visual point resolution; and if the appointed sight distance is larger than the critical sight distance, taking the standard viewpoint resolution as the viewpoint resolution. In an exemplary embodiment of the present disclosure, the size information includes a length of the display area in the first direction and a width of the display area in the second direction, and the reference viewpoint resolution satisfies the following relationship: Rhs=L/(2×S×tan(1/120)); Rvs=H/(2×S×tan(1/120)); Rhs is the component of the reference viewpoint resolution in the first direction, rvs is the component of the reference viewpoint resolution in the second direction, L is the length of the display area in the first direction, H is the width of the display area in the second direction, and S is the specified viewing distance. In an exemplary embodiment of the present disclosure, the viewpoint number satisfies the following relation: N=(Rha×Rva)/(Rh×Rv); n is the number of the viewpoint areas, rha is the component of the panel resolution of the display panel in the first direction, rva is the component of the panel resolution in the second direction, rh is the component of the viewpoint resolution in the first direction, and Rv is the component of the viewpoint resolution in the second direction. In an exemplary embodiment of the present disclosure, the number of views further satisfies the following relationship: N=N1×N2; N1=Rha/Rh; N2=Rva/Rv; N1∶N2=Rha∶Rva; n1 is the row reduction magnification, and N2 is the column reduction magnification. In one exemplary embodiment of the present disclosure, determining at least one of the lens tilt angles according to the viewpoint number includes: And obtaining an inclination angle range without mole patterns through simulation according to the viewpoint number, wherein the inclination angle of the lens is positioned in the inclination angle range. In an exemplary embodiment of the present disclosure, determining at least one of the lens tilt angles according to the viewpoint number further includes: And selecting an inclination angle range without mole patterns, with crosstalk lower