CN111176010B

CN111176010B - Display device, generation method thereof and electronic equipment

Info

Publication number: CN111176010B
Application number: CN202010033085.9A
Authority: CN
Inventors: 宁春丽
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2022-11-25
Anticipated expiration: 2040-01-13
Also published as: CN111176010A

Abstract

The application provides a display device, a generation method thereof and an electronic device. The display device includes: the first display panel and the second display panel are sequentially arranged along the light emergent direction; the first display panel comprises a first substrate, a first display function layer and a second substrate, the first display function layer and the second substrate are sequentially arranged along the light emitting direction, the second substrate is provided with a special-shaped shading grid, and the projection of the special-shaped shading grid on the first substrate is a plurality of polygons which are arranged in a disordered mode and are different in shape. The application provides a display device, through set up special-shaped shading structure at the second base plate, can break first display panel with regular periodic structure between the second display panel avoids first display panel with the second display panel interferes with each other to can effectively reduce the production of mole line, promote display effect.

Description

Display device, generation method thereof and electronic equipment

Technical Field

The present disclosure relates to the field of liquid crystal display technologies, and in particular, to a display device, a method for generating the same, and an electronic device.

Background

A dual-box display, also called a dual-layer display, is a display formed by overlapping two display panels, and has a high contrast ratio and excellent image quality, and thus, has become one of the mainstream directions for the development of current screen display technology.

However, the two display panels of the dual-cell display may interfere with each other due to the consistent structure, thereby generating moire patterns, and further affecting the display effect.

Disclosure of Invention

The application aims to provide a display device, a generation method thereof and an electronic device.

A first aspect of the present application provides a display device comprising: the first display panel and the second display panel are sequentially arranged along the light emergent direction;

the first display panel comprises a first substrate, a first display function layer and a second substrate which are sequentially arranged along the light emitting direction, the second substrate is provided with a special-shaped shading grid, and the projection of the special-shaped shading grid on the first substrate is a plurality of polygons which are arranged in a disordered mode and are different in shape.

The display device that this application first aspect provided through set up special-shaped shading structure at the second base plate, can break first display panel with regular periodic structure between the second display panel avoids first display panel with the second display panel interferes with each other to can effectively reduce the production of mole line, promote display effect.

A second aspect of the present application provides an electronic apparatus provided with the display device provided in the first aspect of the present application.

The electronic device provided by the second aspect of the present application has the same advantages as the display device provided by the first aspect of the present application in view of the same inventive concept.

A third aspect of the present application provides a display device generation method, including:

providing a first substrate, and forming a first display function layer on the first substrate;

providing a second substrate, and forming a special-shaped shading grid on the second substrate, wherein the shape of the special-shaped shading grid comprises a plurality of polygons which are arranged in a disordered mode and have different shapes;

aligning the second substrate and the first substrate to form a box on one side of the first display function layer far away from the first substrate to form a first display panel;

and attaching a second display panel to one side of the second substrate far away from the first substrate to form the display device.

According to the display device generation method provided by the third aspect of the present application, based on the same inventive concept as the liquid crystal device provided by the first aspect of the present application, by forming the special-shaped light-shielding grid on the second substrate, the regular periodic structure between the first display panel and the second display panel can be broken, and the first display panel and the second display panel are prevented from interfering with each other, so that the generation of moire fringes can be effectively reduced, and the display effect is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 illustrates a schematic cross-sectional view of a display device provided in some embodiments of the present application;

FIG. 2 illustrates a schematic projection of a shaped shading grid on a substrate according to some embodiments of the present application;

FIG. 3 is a schematic diagram illustrating a projection of a shaped shading grid and pixel cells onto a substrate according to some embodiments of the present disclosure;

FIG. 4 is a schematic diagram showing a projection of a shaped shading grid and subpixels provided by some embodiments of the present application onto a substrate;

FIG. 5 illustrates a schematic cross-sectional view of a liquid crystal display-based display device provided in some embodiments of the present application;

FIG. 6 illustrates a cross-sectional schematic view of another liquid crystal display-based display device provided in some embodiments of the present application;

FIG. 7 illustrates a schematic projection of a conventional black matrix on a substrate provided by some embodiments of the present application;

FIG. 8 illustrates a schematic projection of another conventional black matrix on a substrate provided by some embodiments of the present application;

FIG. 9 illustrates a flow chart of a display device generation method provided by some embodiments of the present application;

FIG. 10 illustrates a partition diagram of a white space layout provided by some embodiments of the present application;

FIG. 11 illustrates a schematic view of a partition enlargement provided by some embodiments of the present application;

FIG. 12 illustrates a schematic diagram of determining discrete points provided by some embodiments of the present application.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be noted that, unless otherwise specified, technical terms or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In addition, if directional indications (such as up, down, left, right, front, back \8230;) are involved in the embodiment of the present application, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, etc. in a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The embodiment of the application provides a display device, a generation method thereof and an electronic device, and the following description is provided with reference to the accompanying drawings.

Referring to fig. 1, a cross-sectional view of a display device according to some embodiments of the present disclosure is shown, where the display device includes: a first display panel 10 and a second display panel 20 sequentially arranged along a light emitting direction; wherein the content of the first and second substances,

the first display panel 10 includes a first substrate 101, a first display function layer 102, and a second substrate 103 sequentially arranged along a light exit direction; the second substrate 103 is provided with a special-shaped light shielding grid 104, and the projection of the special-shaped light shielding grid 104 on the first substrate 101 is a plurality of polygons which are arranged in a disordered way and have different shapes.

The display device provided by the embodiment of the application can break through the regular periodic structure between the first display panel 10 and the second display panel 20 by arranging the special-shaped shading structure on the second substrate 103, and avoids mutual interference of the first display panel 10 and the second display panel 20, so that the generation of mole lines can be effectively reduced, and the display effect is improved.

For easy understanding, please refer to fig. 2 and fig. 3, fig. 2 shows a schematic projection diagram of a special-shaped shading grid provided in some embodiments of the present application on a substrate, as shown in fig. 2, a projection of the special-shaped shading grid 104 is composed of a plurality of polygons 1041 with different shapes arranged in a disordered manner.

Specifically, fig. 3 shows a schematic projection diagram of the irregular light-shielding grid and the pixel unit provided in some embodiments of the present application on the substrate, in fig. 3, each rectangle 1051 represents a projection of one pixel unit on the substrate, and each irregular polygon 1041 represents a projection of the irregular light-shielding grid 104 on the substrate, based on the irregular light-shielding grid 104, irregular shielding of light transmitted through the pixel unit can be performed, so that the emitted light is difficult to form interference and generate moire when passing through the first display panel 10.

It should be noted that fig. 3 is a schematic diagram for illustrating the irregular shaped shading grid 104 more clearly, and the pixel units (RGB three sub-pixels are in a stripe distribution) in a stripe distribution are used for comparison, but the illustration is not meant to be limiting. In addition, the pixel units in the triangular arrangement, the square arrangement or the mosaic arrangement are still in the periodic arrangement structure on the macro scale, so that the embodiments proposed in the present application can be applied to overcome the generation of moire fringes, which is also within the protection scope of the present application.

In addition, referring to fig. 4, a schematic diagram of a projection of the irregular light-shielding grids and the sub-pixels on the substrate according to some embodiments of the present application is shown, where the size or the number of the irregular light-shielding grids may also be determined according to the size and the number of the sub-pixels, in fig. 4, each square 1052 represents a projection of a sub-pixel on the substrate, and the irregular polygon 1041 represents a projection of the irregular light-shielding grid 104 on the substrate, and based on the irregular light-shielding grid 104, irregular shielding may be performed on light transmitted through the sub-pixels, so that it is difficult for outgoing light to form interference and generate moire fringes when passing through the first display panel 10.

In addition, the irregular shaped light-shielding grid 104 may be disposed inside the second substrate 103, for example, as shown in fig. 1, the irregular shaped light-shielding grid 104 may be one of the intermediate layers of the second substrate 103, and if the second substrate 103 is a color filter substrate, the irregular shaped light-shielding grid 104 may be a black matrix layer on the color filter substrate. The irregular light-shielding grids 104 may be disposed on the surface of the second substrate 103, for example, on the surface of the second substrate 103 close to the first display function layer 102, or on the surface of the second substrate 103 far from the first display function layer 102, as long as the irregular light-shielding grids 104 are located between the first display function layer 102 and the second display panel 20, the generation of moire fringes can be effectively avoided.

Of course, in consideration of the complexity of the manufacturing process, in some embodiments, the special-shaped light-shielding structure may be used to replace the black matrix in the conventional display device, so that the special-shaped light-shielding structure has the functions of shielding light and preventing moire fringes, for example, in the conventional step of manufacturing the black matrix, the special-shaped photo-etching mask used for manufacturing the special-shaped light-shielding structure is used to replace the conventional photo-etching mask used for manufacturing the black matrix, so that the special-shaped light-shielding structure may be generated instead of the black matrix, and other process steps are not changed. According to the embodiment, the special-shaped shading structure can be manufactured only by changing the photoetching mask, and the special-shaped shading structure has the advantages of small change and small influence on the existing process.

The first display panel 10 may be a black-and-white display panel or a color display panel, and the embodiment of the present invention is not limited thereto. For example, if the second display panel 20 is a color display panel, the contrast of the entire display device can be significantly improved when the first display panel 10 is a black-and-white display panel.

In addition, each of the first display panel 10 and the second display panel 20 may be any display panel having a periodic display structure.

For example, the first display panel 10 may be a liquid crystal display panel, and referring to fig. 5, a cross-sectional view of a display device based on liquid crystal display according to some embodiments of the present disclosure is shown, in which the first display panel 10 is a liquid crystal display panel, and correspondingly, the first display function layer 102 includes a liquid crystal layer 1021. It should be noted that, in fig. 5, a TN (Twisted Nematic) liquid crystal is exemplified, but it does not mean to be limited, and the embodiment of the present application does not limit the specific structure and implementation manner of the liquid crystal layer, and other liquid crystal display panels, such as those based on liquid crystal layers of FFS (Fringe Field Switching) type, dye liquid crystal, polymer dispersed liquid crystal, and the like, can be applied to the embodiments of the present application, and all of them are within the protection scope of the present application.

For another example, the first display panel 10 may also be an OLED (Organic Light-Emitting Diode) display panel, please refer to fig. 6, which shows a schematic cross-sectional view of another liquid crystal display-based display device provided in some embodiments of the present application, in which the first display panel 10 is an OLED display panel, and accordingly, the first display function layer 102 includes an Organic Light-Emitting layer 1022.

Similarly, the second display panel 20 may also be implemented using a liquid crystal display panel or an OLED display panel.

It should be noted that one of the purposes of fabricating the dual-cell display is to improve the contrast, and since the OLED display panel has a higher contrast and the liquid crystal display panel has a lower contrast, the dual-cell display is mainly used for combining the liquid crystal display panels to improve the overall contrast, that is, the first display panel 10 and the second display panel 20 both adopt the liquid crystal display panels. However, the embodiment of the present application does not exclude other combination manners, for example, if the first display panel 10 is an OLED display panel and the second display panel 20 is a liquid crystal display panel, the OLED display panel as the first display panel 10 can be used to greatly improve the contrast of the whole display device, and a higher contrast can be obtained than the combination of two liquid crystal display panels. In addition, the first display panel 10 adopts an OLED display panel, and the second display panel 20 adopts a liquid crystal display panel, which are also applicable to the technical solution of the present application and are within the protection scope of the present application, and are not described herein again.

The second display panel 20 may refer to a conventional display panel without a special-shaped light-shielding grid, or a display panel with a periodic light-shielding structure, and the embodiment of the present disclosure is not limited to the specific description thereof, for example, please refer to fig. 5 or fig. 6, in some embodiments, the second display panel 20 is provided with a conventional black matrix 201, a projection of the conventional black matrix 201 on the first substrate 101 is an orderly arranged polygon, the polygon includes any shape such as a rectangle, a parallelogram, a trapezoid, a hexagon, etc., the same conventional black matrix may include polygons with various shapes, for example, the polygon is consistent with the shape of a sub-pixel included in the second display panel.

For ease of understanding, please refer to fig. 7, which shows a schematic projection diagram of a conventional black matrix provided in some embodiments of the present application on a substrate, where the projection of the conventional black matrix on the substrate is orderly arranged squares, and the squares are arranged periodically; referring to fig. 8, a schematic view of a projection of another conventional black matrix provided in some embodiments of the present application onto a substrate is shown, where the projection of the conventional black matrix onto the substrate is an orderly arranged parallelogram, and the parallelogram is also periodically arranged.

Because the first display panel 10 adopts the special-shaped shading grids 104 to shade light and the second display panel 20 adopts the conventional black matrix to shade light, the regular periodic structure between the first display panel 10 and the second display panel 20 can be broken, and the occurrence of moire can be avoided.

On the basis of the above embodiments, in some modified embodiments, the second display panel 20 may include a third substrate, a second display function layer, and a fourth substrate sequentially arranged along the light emitting direction, wherein the conventional black matrix may be disposed on the third substrate, or may be disposed on the fourth substrate.

In some modifications of the embodiments of the present application, the plurality of polygons having different shapes that are randomly arranged as described in the above embodiments may be referred to as a tesson polygon. One of the characteristics of the Thiessen polygon is that a repetitive periodic pattern does not appear in a certain range, and the Thiessen polygon is more advantageous for eliminating Moire patterns. In addition, the arrangement of the Thiessen polygons is controllable, and the density and the size of the Thiessen polygons can be flexibly set by a person skilled in the art according to actual requirements, so that a better Moire eliminating effect can be pertinently obtained.

For example, considering that the larger the area and the smaller the number of the tesson polygons, the smaller the contribution to the elimination of moire, and if the area and the number of the tesson polygons are too small, the aperture ratio of the display device may be seriously affected, and therefore, the closer the number of the tesson polygons and the number of the sub-pixels, the better the balance between the improvement of the aperture ratio and the improvement of moire can be achieved, and the better display effect can be obtained.

Based on the above description, in some embodiments, a ratio of the number of the thiessen polygons to the number of the sub-pixels of the first display panel 10 is smaller than a preset first threshold and/or larger than a preset second threshold. For example, if the ratio is smaller than the preset first threshold, it indicates that the number of the thiessen polygons is small, and it is difficult to achieve a good effect of improving moire; if the ratio is greater than the preset second threshold, the number of Thiessen polygons is too large, and the Moire patterns can be better improved, but the greater transmittance is sacrificed due to serious shading; therefore, the person skilled in the art can design the number of Thiessen polygons in combination with the actual requirements to ensure that the above ratio is smaller than the preset first threshold value and/or larger than the preset second threshold value.

It should be noted that, in general, each pixel (also referred to as a pixel unit) on the display panel is composed of three primary colors of red, green and blue (RGB), and therefore, the pixel may be divided into a plurality of sub-pixels according to a color channel, and each color channel is used for transmitting one color. In some display panels, one pixel is divided into three sub-pixels of "red, green and blue", and in other display panels, one pixel is divided into four sub-pixels of "red, green, blue and white", so that the aperture ratio can be further increased, and the embodiment of the present application is not limited to the specific implementation manner thereof.

In some embodiments, the first threshold and the second threshold may be different according to the number of sub-pixels divided by one pixel, for example, in the case of dividing one pixel into three sub-pixels, the first threshold may be one third, and the second threshold may be 2, so that the balance between the improvement of the aperture ratio and the improvement of the moire can be well maintained; for another example, in the case of dividing one pixel into four sub-pixels, the first threshold may be set to be one fourth, and the second threshold may be set to be 2, so that the balance between increasing the aperture ratio and improving the moire can be well maintained; the above are exemplary illustrations of the embodiments of the application and are not intended to be limiting in any way.

In order to obtain a better display effect, in some modified embodiments, the number of the tesson polygons may be equal to the number of the sub-pixels of the first display panel 10, and according to this embodiment, the balance between the aperture ratio and the moire may be better considered, so that the generation of the moire may be reduced, and a sufficiently high aperture ratio may be ensured.

It should be noted that the thiessen polygon is a continuous polygon formed by perpendicular bisectors of line segments connecting two adjacent discrete points, and the density and area of the continuous polygon are mainly determined by the positions of the discrete points. The number of the tesson polygons is equal to the number of the sub-pixels of the first display panel 10, and it cannot be guaranteed that the distribution of the tesson polygons is uniform, and therefore, in some embodiments, the positions of the discrete points of the tesson polygons correspond to the positions of the sub-pixels of the first display panel 10 in the light emitting direction in a one-to-one manner. By the embodiment, a discrete point can be ensured at the position corresponding to each sub-pixel, so that the uniformity of the Thiessen polygon determined according to the discrete point is better, and the generation of moire fringes can be better reduced.

In addition, in some embodiments, the line width of the irregular shading grid 104 may be set between 3 micrometers and 6 micrometers, where the line width is greater than or equal to 3 micrometers, so as to ensure that the moire fringes can be eliminated, and the line width is less than or equal to 6 micrometers, so as to effectively reduce the shielding of light, ensure a sufficiently high aperture ratio, and contribute to improving the light transmittance and contrast.

In view of the above, the problem of moire is mainly solved by adding the haze film or the haze glue between the two display panels in the conventional dual-box display device, but the overall transmittance and contrast of the display device are seriously affected by adding the haze film or the haze glue, so that the moire problem can be effectively solved by arranging the special-shaped light-shielding grid 104 without adding the haze film or the haze glue between the two display panels on the basis of any one of the above embodiments, and meanwhile, the display device still has high transmittance and contrast, as proved by experiments, compared with the conventional manner of adding the haze film or the haze glue between the two display panels, the transmittance of the dual-box display device in the embodiment of the present application can be increased by about 7%, and the contrast can be increased by about 35%.

Please refer to fig. 1, the first display panel 10 and the second display panel 20 are mainly attached together through an optical adhesive film 30, and considering that a distance between the first display panel 10 and the second display panel 20 is too large (generally larger than 400 micrometers) due to the addition of a haze film or a haze optical adhesive in the prior art, which is easy to cause a double image, on the basis of any of the above embodiments, the distance between the first display panel 10 and the second display panel 20 can be reduced to less than 200 micrometers, so that the double image problem can be effectively improved.

In the foregoing embodiments, a display device is provided, and in view of the same inventive concept, embodiments of the present application further provide an electronic device, where the electronic device may be any device having a display function, including but not limited to a display, a notebook computer, a tablet computer, a television, a vehicle-mounted human-computer interaction terminal, and the electronic device may be configured with the display device provided in any of the above embodiments, so that moire fringes are not generated or fewer moire fringes are generated.

In addition, an embodiment of the present application further provides a display device generation method to produce the display device provided in any of the above embodiments, and the following exemplary description about a display device manufacturing method may be understood by referring to the foregoing description about an embodiment of a display device, and some contents are not repeated.

Referring to fig. 9, which illustrates a flowchart of a display device generation method provided in some embodiments of the present application, as shown, the display device generation method may include the following steps:

step S101: a first substrate is provided, and a first display function layer is formed on the first substrate.

Step S102: providing a second substrate, and forming a special-shaped shading grid on the second substrate, wherein the shape of the special-shaped shading grid comprises a plurality of polygons which are arranged in a disordered mode and have different shapes.

Step S103: and aligning the second substrate and the first substrate to form a box on one side of the first display function layer far away from the first substrate to form a first display panel.

Step S104: and attaching a second display panel to one side of the second substrate far away from the first substrate to form the display device.

The display device generation method provided by the embodiment of the application is based on the same inventive concept as the liquid crystal device provided by the previous embodiment of the application, and by forming the special-shaped shading grid on the second substrate, a regular periodic structure between the first display panel and the second display panel can be broken, and mutual interference between the first display panel and the second display panel can be avoided, so that the generated display device can effectively reduce the generation of moire fringes, and the display effect is improved.

In some variations, the forming a shaped light-blocking grid on the second substrate comprises:

forming a black photoresist material on the second substrate;

exposing the black photoresist material based on the special-shaped photoetching mask plate;

and developing the exposed black light resistance material to obtain the special-shaped shading grid formed by the residual black light resistance material.

According to the embodiment, the special-shaped shading grid formed by the residual black photoresist material can be obtained only by coating the black photoresist material on the second substrate, then exposing by using the special-shaped photoetching mask plate and finally developing, and the special-shaped shading grid has the advantages of simplicity in operation and easiness in implementation.

The special-shaped photolithography mask can be flexibly designed according to actual requirements in advance, and accordingly, in some embodiments, before the black photoresist material is exposed based on the special-shaped photolithography mask, the method further includes:

randomly generating a plurality of polygons which are not in the same shape and are arranged in disorder in the blank layout to obtain a photoetching layout;

and printing to form a special-shaped photoetching mask according to the photoetching layout.

The method comprises the steps of randomly generating a plurality of polygons which are not in the same shape and are arranged in a disordered manner in a blank layout, wherein the polygons which are not in the same shape and are arranged in the disordered manner are generated randomly in the blank layout.

In order to realize the controllability of the irregular shading grid, in some embodiments, the plurality of polygons with different shapes which are arranged in an unordered mode comprise Thiessen polygons, and the number of the Thiessen polygons is equal to the number of the sub-pixels of the first display panel;

randomly generating a plurality of polygons which are not in the same shape and are arranged in disorder in the blank layout to obtain the photoetching layout, wherein the method comprises the following steps:

equally dividing the blank layout into a plurality of partitions, wherein the partitions correspond to the sub-pixels of the first display panel one by one;

generating a random natural number for each partition by adopting a random number generation algorithm, wherein the random natural numbers corresponding to different partitions are different;

dividing each partition into a plurality of sub-partitions by referring to the blank layout of the divided partitions, and distributing all the generated random natural numbers to all the sub-partitions of the partition aiming at each partition;

aiming at each partition, searching a target sub-partition corresponding to the random natural number in a plurality of sub-partitions divided by the partition according to the random natural number corresponding to the partition, and determining the target sub-partition as a discrete point corresponding to the partition;

and dividing the blank layout into a photoetching layout comprising a plurality of Thiessen polygons according to the perpendicular bisectors of every two adjacent discrete points.

For ease of understanding, the following description is made in connection with some specific embodiments:

taking the resolution of the display device as 720 × 240 as an example, each pixel is divided into three sub-pixels of "red, green, and blue", and then the number of sub-pixels of the first display panel is 720 × 240 × 3=518400. Then, the blank layout is equally divided into 720 × 240 × 3=518400 partitions, where each partition corresponds to each sub-pixel of the first display panel one to one (both in position and size), and then a random number generation algorithm is used to generate a random natural number for each partition, and the result after allocation is shown in fig. 10. The generated random natural number may be a natural number within 518400 (as shown in fig. 10), as long as the random natural number allocated to each partition is ensured to be different, or the generated random natural number is not limited to within 518400, and may be an arbitrarily large natural number, and the larger the value, the better the tylson polygon disorder.

Further, referring to the blank layout of the partitioned areas, each partition is partitioned into a plurality of sub-partitions, and the generated random natural numbers are distributed to each sub-partition, and the result after partitioning is shown in fig. 11. For a plurality of sub-partitions of each partition, the random natural numbers may be allocated to each sub-partition in an order from small to large (as shown in fig. 11), may also be allocated to each sub-partition in an order from large to small, and may also be allocated to each sub-partition in an order of the random natural numbers in a blank layout.

Then, for each partition, according to the random natural number corresponding to the partition, a target sub-partition corresponding to the random natural number is searched in a plurality of sub-partitions divided by the partition, wherein the target sub-partition refers to a sub-partition which is allocated with the same random natural number as the partition, and the target sub-partition is determined as a discrete point corresponding to the partition. For example, as shown in fig. 12, for partition No. 2160, the location of the sub-partition No. 2160 (i.e. the target sub-partition) is found in the enlarged view of the partition, and the above steps are repeated until the location of the discrete point corresponding to each partition is determined.

Next, connecting every two adjacent discrete points by using line segments, and then making a perpendicular bisector (i.e., a perpendicular bisector) of each line segment, wherein the perpendicular bisectors intersect to obtain a thieson polygon, thereby dividing the blank layout into a lithographic layout including a plurality of thieson polygons (please refer to fig. 2 for understanding).

Through the embodiment, the special-shaped photoetching mask with the Thiessen polygons can be prepared in a controllable mode, and the discrete point is arranged at the position corresponding to each sub-pixel, so that the Thiessen polygons determined according to the discrete points are better in uniformity, and the generation of Moire patterns can be better reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification.

Claims

1. A display device generation method, comprising:

aligning the second substrate and the first substrate into a box at one side of the first display function layer far away from the first substrate to form a first display panel;

attaching a second display panel to one side of the second substrate, which is far away from the first substrate, so as to form a display device;

the forming of the shaped light-shielding grid on the second substrate comprises:

forming a black photoresist material on the second substrate;

the polygons which are arranged in disorder and have different shapes comprise Thiessen polygons;

equally dividing the blank layout into a plurality of partitions, wherein the partitions correspond to the sub-pixels of the first display panel one to one;

dividing each partition into a plurality of sub-partitions by referring to the blank layout with the partitions, and distributing all the generated random natural numbers to all the sub-partitions of the partition aiming at each partition;

dividing the blank layout into a photoetching layout comprising a plurality of Thiessen polygons according to the perpendicular bisectors of every two adjacent discrete points;

printing to form a special-shaped photoetching mask according to the photoetching layout;