A 64-level grayscale pixel structure and display medium
By dividing independent areas in the 64-order grayscale pixel structure and setting light-through areas with different grayscales, the problems of poor adhesion of fine structures and high-cost equipment are solved, and a softer display effect and more expressive gray-based multi-gray Order image generation.
Patent Information
- Application Number
- CN202210573900.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2042-05-25
AI Technical Summary
When the prior art achieves 64th order grayscale, the generation of fine structures leads to poor adhesion, severe wear, and requires high-end precision equipment, resulting in high cost and difficulty in generating expressive multi-grayscale images.
By dividing the 64-order grayscale pixel structure into multiple independent areas or thinner structures, using pixel driving electrodes to drive the display pattern, setting light-through areas and light-shading areas of different grayscales, satisfying the minimum line width constraint that can be achieved by the process, forming a A softer display effect.
With the minimum line width constraints, more expressive multi-grayscale images are generated, reducing manufacturing costs, and it is difficult to distinguish pattern details in amplified projection to create a uniform and soft grayscale feeling.
Smart Images
Figure CN114927105B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of display devices, and more specifically, to a 64-level grayscale pixel structure and a display medium. Background Art
[0002] Two-state imaging refers to the ability to present both "black and white" states. For example, in monochrome ink printing, all ink drops are the same black. By adjusting the distribution density of ink drops on the paper, the human eye can produce a grayscale visual effect. Similarly, light-transmitting / opaque is also a two-state imaging, and a similar principle can be used to achieve a grayscale visual effect.
[0003] However, if the above method is used to achieve n grayscales (such as 64 grayscales), it is necessary to make n types of droplet distribution densities, such as 64 distribution densities, on the unit area of the imaging medium. For density distributions close to all black or all white, that is, grayscales that are "very close to white" or "very close to black", fine structures will be generated (for example, when the medium substrate is "white", each droplet that is "black" must be very small and distributed very sparsely to achieve a grayscale that is very close to all white).
[0004] The generation of fine structures is very unfavorable for their adhesion to the medium substrate, and they are easy to fall off and wear, which is manifested as the grayscale loss and defect of the macro pattern. In addition, more sophisticated and expensive equipment is required to produce precise fine structures. In practical applications, it is difficult to generate more expressive multi-grayscale images due to the scarcity of high-end equipment and high application costs. Summary of the invention
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a 64-level grayscale pixel structure and display medium. Under the constraint of the minimum line width achievable by the process, by dividing it into multiple independent areas, or a finer structure, it makes it more difficult for the human eye to distinguish details, and a softer display effect can be obtained.
[0006] The object of the present invention is achieved through the following solutions:
[0007] A 64-level grayscale pixel structure includes a pixel group and a pixel driving electrode. The pixel driving electrode drives the pixel group to display a pattern. The pixel group includes a grayscale pixel structure No. 0, grayscale pixel structures No. 1 to 9, grayscale pixel structures No. 10 to 17, grayscale pixel structures No. 18 to 32, and grayscale pixel structures No. 33 to 63.
[0008] Furthermore, the display pattern of the No. 0 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern.
[0009] Furthermore, the display patterns of the grayscale pixel structures No. 1 to 9 under electrical drive all fully cover the pixel area, and 1 to 9 circular light-transmitting areas with a diameter of 4 microns are respectively set; and the light-transmitting areas are evenly distributed in the pixel area; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; and the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns.
[0010] Furthermore, the display patterns of the grayscale pixel structures No. 10 to 17 under electrical drive fully cover the pixel area, and 9 independent circular light-transmitting areas are set; they are evenly distributed in the pixel area; the 9 independent circular light-transmitting areas have the same diameter; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the boundary of the pixel area is greater than or equal to 2 microns.
[0011] Furthermore, the display pattern of the grayscale pixel structure No. 18 to 32 under electrical drive fully covers the pixel area, and there are 4 rounded rectangular light-transmitting areas; they are evenly distributed in the pixel area; the 4 rounded rectangular light-transmitting areas have exactly the same shape; the radius of the rounded corners is 2 microns; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; in grayscales 18 to 32, the area ratio of the light-transmitting area of the jth grayscale pattern to the pixel area is equal to j / 63.
[0012] Furthermore, the display pattern of the grayscale pixel structure No. 33 to No. 63 under electrical driving is the inversion of the grayscale pattern No. 0 to No. 31, that is, the shading area becomes the light-transmitting area, and the light-transmitting area becomes the shading area, and grayscale images No. 33-63 are obtained in sequence.
[0013] Furthermore, the display pattern of the No. 63 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern.
[0014] Furthermore, the diameters of the light-transmitting circle areas in the grayscale patterns No. 10 to No. 17 gradually increase, and in the grayscale patterns No. 10 to No. 17, the ratio of the light-transmitting area to the pixel area of the i-th grayscale pattern is equal to i / 63.
[0015] Furthermore, the corresponding relationship between grayscales 0 to 31 and grayscales 32 to 63 is: k+l=63, wherein k is one of the grayscales 0 to 31, and l is the corresponding grayscale generated by inverting the grayscale k.
[0016] A display medium comprises any one of the above-mentioned 64-level grayscale pixel structures.
[0017] The beneficial effects of the present invention include:
[0018] For the n grayscale pixel pattern display system, the through area on the 0 to 50% light-transmitting pattern and the shading area in the 50% light-transmitting pattern to the n-1 grayscale pattern are divided into multiple independent areas or more slender structures under the minimum line width constraint that can be achieved by the process, making it more difficult for the human eye to distinguish details, and a softer display effect can be obtained. Especially in the field of magnified projection, even after the fine structure is magnified, the human eye is difficult to distinguish the pattern details, forming a more "uniform and soft" grayscale feeling.
[0019] By using the imaging medium of the present invention, a more expressive multi-grayscale image can be generated while reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 This is a schematic diagram of the 64-level grayscale pixel structure of the present invention. DETAILED DESCRIPTION
[0022] All features disclosed in all embodiments in this specification, or steps in all methods or processes implicitly disclosed, except for mutually exclusive features and / or steps, can be combined and / or expanded or replaced in any manner.
[0023] An embodiment of the present invention designs a 64-level grayscale pixel pattern display scheme based on a minimum line width of 4 microns process, in which the side length of the pixel area is 28 microns. In the embodiment, the present invention provides a 64-level grayscale pixel structure, including a pixel group and a pixel driving electrode, and the pixel driving electrode drives the pixel group to display a pattern. The pixel group includes a grayscale pixel structure No. 0, grayscale pixel structures No. 1 to 9, grayscale pixel structures No. 10 to 17, grayscale pixel structures No. 18 to 32, and grayscale pixel structures No. 33 to 63.
[0024] In a specific embodiment, the following embodiments are included:
[0025] The grayscale 0 pixel structure displays a pattern under electrical drive: setting grayscale 0 means full light shielding, setting grayscale 63 means full light transmission, which respectively means that the pixel area is fully covered without any covering pattern.
[0026] Grayscale pixel structures No. 1 to 9 display patterns under electrical drive: Grayscale patterns No. 1 to 9 are characterized by: there are 1 to 9 circular light-transmitting areas with a diameter of 4 microns on the full coverage pixel area; and the light-transmitting areas are distributed as evenly as possible in the pixel area; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns.
[0027] The grayscale pixel structure No. 10 to 17 displays a pattern under electrical drive: the grayscale pattern No. 10 to 17 is characterized by: there are 9 independent light-transmitting circular areas in the full coverage pixel area; they are evenly distributed in the pixel area; the 9 independent circular light-transmitting areas have the same diameter; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; the diameter of the light-transmitting circular area in the grayscale pattern No. 10 to 17 gradually increases, and in the grayscales 10 to 17, the ratio of the light-transmitting area area to the pixel area area of the i-th grayscale is equal to i / 63.
[0028] The grayscale pixel structure No. 18 to 32 displays a pattern under electrical drive: The grayscale patterns No. 18 to 32 are characterized by: there are 4 rounded rectangular light-transmitting areas in the full coverage pixel area; they are evenly distributed in the pixel area; the 4 rounded rectangular light-transmitting areas have exactly the same shape; the radius of the rounded corners is 2 microns; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; in grayscales 18 to 32, the area ratio of the light-transmitting area of the j-th grayscale pattern to the pixel area is equal to j / 63.
[0029] The grayscale pixel structure of 33 to 63 displays a pattern under electrical drive: the grayscale pattern of 0 to 31 is inverted, that is, the light-shielding area becomes the light-transmitting area, and the light-transmitting area becomes the light-shielding area, and grayscales of 33 to 63 are obtained in sequence. In addition, the corresponding relationship between grayscales of 0 to 31 and grayscales of 32 to 63 is: k+l=63, where k is a grayscale of 0 to 31, and l is the corresponding grayscale generated by inverting grayscale k.
[0030] like Figure 1 As shown, the black area represents the light-shielding area, and the white area represents the light-transmitting area. From left to right, from top to bottom, they are 0, 1, 2, 3…63 grayscale patterns.
[0031] For the n grayscale pixel pattern system, the through area on the 0 to 50% light transmission pattern and the shading area in the 50% light transmission pattern to the n-1 grayscale pattern are divided into multiple independent areas or more slender structures under the minimum line width constraint that can be achieved by the process, making it more difficult for the human eye to distinguish details, and a softer display effect can be obtained. Especially in the field of magnified projection, even after the fine structure is magnified, the human eye is difficult to distinguish the pattern details, forming a more "uniform and soft" grayscale feeling.
[0032] Example 1
[0033] A 64-level grayscale pixel structure includes a pixel group and a pixel driving electrode. The pixel driving electrode drives the pixel group to display a pattern. The pixel group includes a grayscale pixel structure No. 0, grayscale pixel structures No. 1 to 9, grayscale pixel structures No. 10 to 17, grayscale pixel structures No. 18 to 32, and grayscale pixel structures No. 33 to 63.
[0034] Example 2
[0035] On the basis of Example 1, the display pattern of the No. 0 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern.
[0036] Example 3
[0037] On the basis of Example 1, the display patterns of the grayscale pixel structures No. 1 to 9 under electrical drive all fully cover the pixel area, and 1 to 9 circular light-transmitting areas with a diameter of 4 microns are respectively set; and the light-transmitting areas are evenly distributed in the pixel area; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns.
[0038] Example 4
[0039] On the basis of Example 1, the display patterns of the grayscale pixel structures No. 10 to 17 under electrical drive all fully cover the pixel area, and 9 independent circular light-transmitting areas are set; they are evenly distributed in the pixel area; the 9 independent circular light-transmitting areas have the same diameter; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the boundary of the pixel area is greater than or equal to 2 microns.
[0040] Example 5
[0041] On the basis of Example 1, the display pattern of the grayscale pixel structure No. 18 to 32 under electrical drive fully covers the pixel area, and there are 4 rounded rectangular light-transmitting areas; they are evenly distributed in the pixel area; the 4 rounded rectangular light-transmitting areas have exactly the same shape; the radius of the rounded corners is 2 microns; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; in grayscales 18 to 32, the area ratio of the light-transmitting area of the jth grayscale pattern to the pixel area is equal to j / 63.
[0042] Example 6
[0043] On the basis of Example 1, the display pattern of the grayscale pixel structure No. 33 to 63 under electrical drive reverses the grayscale pattern No. 0 to 31, that is, the shading area becomes the light-transmitting area, and the light-transmitting area becomes the shading area, and grayscale images No. 33-63 are obtained in sequence.
[0044] Example 7
[0045] On the basis of Example 1, the display pattern of the No. 63 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern.
[0046] Example 8
[0047] On the basis of Example 4, the diameters of the light-transmitting circle areas in grayscale patterns No. 10 to No. 17 gradually increase, and in grayscale patterns No. 10 to No. 17, the ratio of the light-transmitting area to the pixel area of the i-th grayscale pattern is equal to i / 63.
[0048] Example 9
[0049] On the basis of Example 6, the correspondence between grayscales 0 to 31 and grayscales 32 to 63 is: k+l=63, wherein k is a grayscale among grayscales 0 to 31, and l is the corresponding grayscale generated by inverting grayscale k.
[0050] Example 10
[0051] A display medium includes the 64-level grayscale pixel structure as described in any one of Embodiments 1 to 9.
[0052] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
[0053] The above technical solution is only one implementation mode of the present invention. For those skilled in the art, it is easy to make various types of improvements or modifications based on the application methods and principles disclosed in the present invention, and it is not limited to the method described in the above specific implementation mode of the present invention. Therefore, the method described above is only preferred and does not have a restrictive meaning.
[0054] In addition to the above examples, those skilled in the art may obtain other embodiments based on the above disclosure or by using the knowledge or technology in the relevant field to make changes. The features of each embodiment may be interchangeable or replaced. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention and should be within the scope of protection of the claims attached to the present invention.
Claims
1. A 64-level grayscale pixel structure, characterized in that: It includes a pixel group and a pixel driving electrode, the pixel driving electrode drives the pixel group to display a pattern, the pixel group includes a grayscale pixel structure No. 0, grayscale pixel structures No. 1 to 9, grayscale pixel structures No. 10 to 17, grayscale pixel structures No. 18 to 32, and grayscale pixel structures No. 33 to 63; The display pattern of the No. 0 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern; The display patterns of the grayscale pixel structures No. 1 to 9 under electrical drive all fully cover the pixel area, and 1 to 9 circular light-transmitting areas with a diameter of 4 microns are respectively set; and the light-transmitting areas are evenly distributed in the pixel area; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; The display patterns of the grayscale pixel structures No. 10 to 17 under electrical drive all fully cover the pixel area, and 9 independent circular light-transmitting areas are set; they are evenly distributed in the pixel area; the 9 independent circular light-transmitting areas have the same diameter; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; The display pattern of the 18 to 32 grayscale pixel structure under electrical drive fully covers the pixel area, and there are 4 rounded rectangular light-transmitting areas; they are evenly distributed in the pixel area; the 4 rounded rectangular light-transmitting areas have exactly the same shape; the radius of the rounded corners is 2 microns; the closest distance between all light-transmitting areas is greater than or equal to 4 microns; the minimum distance between all light-transmitting areas and the pixel area boundary is greater than or equal to 2 microns; in the 18 to 32 grayscales, the area ratio of the light-transmitting area of the j-th grayscale pattern to the pixel area is equal to j / 63; The display pattern of the grayscale pixel structure No. 33 to No. 63 under electrical driving is to invert the grayscale pattern No. 0 to No. 31, that is, the light-shielding area becomes the light-transmitting area, and the light-transmitting area becomes the light-shielding area, and grayscale images No. 33-63 are obtained in sequence; The display pattern of the No. 63 grayscale pixel structure under electrical driving covers the entire pixel area without any covering pattern.
2. The 64-level grayscale pixel structure according to claim 1, characterized in that: The diameters of the light-transmitting circle areas in the grayscale patterns No. 10 to No. 17 gradually increase, and in the grayscale patterns No. 10 to No. 17, the ratio of the light-transmitting area to the pixel area of the i-th grayscale pattern is equal to i / 63.
3. The 64-level grayscale pixel structure according to claim 1, characterized in that: The corresponding relationship between grayscales 0 to 31 and grayscales 32 to 63 is: k+l=63, where k is a grayscale from 0 to 31, and l is the corresponding grayscale generated by inverting grayscale k.
4. A display medium, characterized in that: It comprises a 64-level grayscale pixel structure as described in any one of claims 1 to 3.