Display module, manufacturing method thereof and display device

Abstract

The invention discloses a display module, a manufacturing method thereof and a display device, and the display module of one embodiment comprises a display panel which comprises a plurality of sub-pixels arranged in an array; the light control device is arranged on the light emitting side of the display panel, and at least when the display device is in the three-dimensional display state, the light emitted by the display panel is regulated and controlled and then a three-dimensional picture is displayed, and the three-dimensional picture is free of moire patterns. The display module provided by the embodiment of the invention can eliminate moire patterns of a three-dimensional display picture.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display module and a manufacturing method thereof, and a display device. Background Art

[0002] Three Dimension (3D) display technology has attracted wide attention because it can give people a strong visual impact and the highest visual enjoyment. Current 3D display devices have the problem of moiré when displaying three-dimensional images, and the solution to reduce moiré inevitably leads to high crosstalk. In order to reduce crosstalk, when a converging lens and a slit grating are respectively located on the backlight side and the light-emitting side of the display panel, the problem of low light efficiency is brought about. Therefore, a display product that can solve the above problems is urgently needed. Summary of the invention

[0003] In order to solve at least one of the above problems, the present disclosure provides a display module according to a first aspect, including:

[0004] A display panel comprising a plurality of sub-pixels arranged in an array;

[0005] The light control device is arranged on the light emitting side of the display panel, and at least when the display device is in a three-dimensional display state, the light emitted by the display panel is controlled to display a three-dimensional picture without moiré.

[0006] Optionally, the display panel includes a plurality of rows of sub-pixels, each row of sub-pixels is arranged in a first direction at intervals by a shading unit, and a ratio of a width of the sub-pixel in the first direction to a sum of a width of the sub-pixel and a width of the shading unit in the first direction is n / N, where n and N are positive integers, n is less than N,

[0007] The light control device includes a cylindrical lens array, the cylindrical lens array includes a plurality of lens groups, each lens group includes N cylindrical lenses arranged vertically along a first direction,

[0008] In a lens group, the area of ​​the light shielding unit covered by each cylindrical lens is provided with a sub-pixel at a corresponding position of at least one cylindrical lens in the group, and

[0009] Two adjacent rows of sub-pixels are arranged in a staggered manner.

[0010] Optionally, the sum of the width of the sub-pixel in the first direction and the width of the shading unit adjacent to the sub-pixel in the first direction is w, and two adjacent rows of sub-pixels are staggered by a distance m / N times w.

[0011] Among them, w is greater than 0, m is a positive integer, and m and N are prime to each other.

[0012] Optionally, the orthographic projection of the cylindrical lens on the display panel covers multiple rows of sub-pixels, the sum of the widths of the sub-pixels in the same row covered by each lens group is equal to the sum of the widths of the shading units, the sum of the widths of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal and / or the sum of the widths of the shading units of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal.

[0013] Optionally, the number of viewpoints covered by each cylindrical lens and N are mutually prime numbers.

[0014] Optionally, the lens aperture Plens of the cylindrical lens satisfies:

[0015] Plens=k×a

[0016] The placement height h of the cylindrical lens satisfies:

[0017]

[0018] Among them, k represents the number of viewpoints covered by each cylindrical lens, a represents the width of the sub-pixel, L represents the viewing distance of the human eye, and Pd represents the distance between the pupils of the human eye.

[0019] Optionally, sub-pixels in the same row emit the same color, and sub-pixels in adjacent rows emit different colors, or

[0020] Adjacent sub-pixels in the same row have different colors.

[0021] Optionally, the light control device includes: a first conductive substrate, a second conductive substrate, and a liquid crystal layer disposed between the first conductive substrate and the second conductive substrate.

[0022] The first conductive substrate includes at least one first conductive layer disposed on the first substrate, the second conductive substrate includes at least one second conductive layer disposed on the second substrate,

[0023] The first conductive layer includes a plurality of first strip electrodes arranged at intervals, and the second conductive layer includes a plurality of second strip electrodes arranged at intervals.

[0024] An orthographic projection of the first strip-shaped electrode of the first conductive substrate on the first substrate is interlaced with an orthographic projection of the second strip-shaped electrode of the second conductive substrate on the first substrate.

[0025] Optionally, the first conductive substrate includes a first conductive layer, the second conductive substrate includes a second conductive layer,

[0026] An orthographic projection of the first strip electrode on the first substrate intersects with an orthographic projection of the second strip electrode on the first substrate.

[0027] Optionally, the first conductive substrate includes two first conductive layers and a first insulating layer disposed between the two first conductive layers, and the second conductive substrate includes two second conductive layers and a second insulating layer disposed between the two second conductive layers.

[0028] The first strip electrodes are arranged in the same direction, and the second strip electrodes are arranged in the same direction,

[0029] The center line of the spacing region of the first strip electrodes of one first conductive layer along the extension direction coincides with the center line of the first strip electrodes of another first conductive layer along the extension direction.

[0030] A center line of the spacing region of the second strip electrodes of one second conductive layer along the extension direction coincides with a center line of the second strip electrodes of another second conductive layer along the extension direction.

[0031] Optionally, the first strip electrodes are arranged at equal intervals and the distance between the first strip electrodes is equal to the width of the first strip electrodes, and the second strip electrodes are arranged at equal intervals and the distance between the second strip electrodes is equal to the width of the second strip electrodes.

[0032] Optionally, the first conductive substrate is disposed on a side of the liquid crystal layer close to the display panel, and the second conductive substrate is disposed on a side of the liquid crystal layer away from the display panel.

[0033] The light control device further includes: a combined grating arranged on a side of the second conductive substrate away from the display panel,

[0034] The combined grating includes: a lens unit and a resin layer covering the light-emitting surface of the lens unit.

[0035] The lens unit includes a plurality of lenses, and the material of the lenses is a solidified liquid crystal material.

[0036] The molecules of the liquid crystal in the solidified liquid crystal material are oriented parallel to the grating central axis of the combined grating, and

[0037] The refractive index of the liquid crystal in the solid liquid crystal material perpendicular to the liquid crystal optical axis is equal to the refractive index of the resin layer, and the refractive index of the liquid crystal parallel to the liquid crystal optical axis is greater than the refractive index of the resin layer.

[0038] Optionally, the display panel includes a color filter layer, and the refractive index of a medium between a surface of the lens close to the display panel and a light emitting surface of the color filter layer is greater than or equal to 1.3 and less than or equal to 1.7.

[0039] A second aspect of the present disclosure provides a display device, comprising the display module described above.

[0040] A third aspect of the present disclosure provides a method for manufacturing the display module described above, comprising forming a stacked display panel and a light control device,

[0041] The method further comprises:

[0042] providing a supporting substrate and a concave film layer;

[0043] Aligning and fixing the orientation surface of the supporting substrate and the concave surface of the concave film layer;

[0044] Filling, aligning and curing the liquid crystal in the space between the concave film layer and the supporting substrate; and

[0045] The supporting substrate is removed to form a combined grating in the light control device.

[0046] The beneficial effects of the present disclosure are as follows:

[0047] In response to the current existing problems, the present disclosure develops a display module and a manufacturing method thereof, as well as a display device. By providing a light control device arranged on the light-emitting side of the display panel, the light emitted by the display panel can be regulated to display a three-dimensional image without moiré under low crosstalk conditions, thereby improving the display quality and the user's visual experience, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 A schematic diagram showing a display module according to an embodiment of the present disclosure;

[0050] Figure 2 A schematic diagram showing the arrangement of sub-pixels in a display panel of a display module according to an embodiment of the present disclosure is shown;

[0051] Figure 3 A schematic diagram showing a display module according to an embodiment of the present disclosure;

[0052] Figure 4 and Figure 5 A schematic diagram showing the arrangement of sub-pixels in a display panel of a display module according to an embodiment of the present disclosure is shown;

[0053] Figure 6 and Figure 7 A schematic diagram showing a display module according to another embodiment of the present disclosure;

[0054] Figure 8 A light path diagram of a display module according to an embodiment of the present disclosure is shown;

[0055] Fig. 9A schematic diagram showing a display module according to another embodiment of the present disclosure;

[0056] Fig.10 Show Fig. 9 A schematic diagram of a light control assembly of the illustrated embodiment;

[0057] Fig.11 A schematic diagram showing a first conductive substrate in a light control assembly according to an embodiment of the present disclosure;

[0058] Fig.12 A schematic diagram showing the overlap of a first conductive substrate and a second conductive substrate in a light control assembly according to an embodiment of the present disclosure;

[0059] Fig.13 A schematic diagram showing a combined grating according to an embodiment of the present disclosure;

[0060] Figures 14 to 19 A method flow chart of a display module according to an embodiment of the present disclosure is provided. DETAILED DESCRIPTION

[0061] In order to more clearly illustrate the present disclosure, the present disclosure is further described below in conjunction with preferred embodiments and drawings. Similar components in the drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present disclosure.

[0062] It should be noted that, in the description of the present application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0063] In the related art, due to the uniform arrangement of dark areas between pixels, there are stripes with uniform dark and light arrangement in the picture during 3D display, that is, moiré. At present, in order to eliminate moiré, a common method is to tilt the cylindrical lens on the light-emitting side of the display panel, that is, there is an angle of a certain value between the central axis of the cylindrical lens and the normal of the light-emitting surface of the display panel. Through this setting, the dark stripes between the pixels converge to the outside of the screen or the tilted angle setting is used to merge multiple dark strips into a wider whole that is not recognized by the human eye, thereby achieving the purpose of eliminating moiré. However, such a setting greatly increases crosstalk while eliminating moiré. If the crosstalk is eliminated accordingly, it will lead to the problem of low light efficiency.

[0064] In order to solve at least one of the above problems, an embodiment of the present disclosure provides a display module, including:

[0065] A display panel comprising a plurality of sub-pixels arranged in an array;

[0066] The light control device is arranged on the light emitting side of the display panel, and at least when the display device is in a three-dimensional display state, the light emitted by the display panel is controlled to display a three-dimensional picture without moiré.

[0067] In this embodiment, by providing a light control device arranged on the light emitting side of the display panel, the light emitted by the display panel can be regulated to display a three-dimensional image without moiré, thereby improving the display quality and the user's visual experience.

[0068] In an optional embodiment, in combination with Figure 1 and Figure 2 As shown, the display module includes: a display panel 10 and a light control device 20. The display panel 10 includes a plurality of sub-pixels arranged in an array, and the light control device 20 is disposed on the light emitting side of the display panel 10.

[0069] In the embodiments of the present disclosure, the display panel 10 can be an active light-emitting display panel, such as a light emitting diode (LED) display panel, an organic light emitting diode (OLED) display panel, a quantum dot light emitting diode (QLED) display panel, a micro light emitting diode (MicroLED) display panel, etc., or a passive light-emitting display panel, such as a liquid crystal display (LCD) panel. When the structure of the display panel 10 is a liquid crystal display panel, the display panel 10 includes a backlight source and a display substrate, the display substrate is composed of a color film substrate and an array substrate of a box and a liquid crystal layer, and the backlight source can be a light source composed of an active light-emitting device, usually an LED or an OLED.

[0070] Considering the different light emission modes of the display panel, when the display panel is an LCD panel, because its display substrate is provided with a polarizer and a depolarizer on its light incident side and light emitting side respectively, the emitted light must be linearly polarized light, and no polarizer is required to be attached. However, when the display panel is an active light-emitting display panel, such as an LED or OLED display panel, the light emitted is not necessarily polarized light. If the emitted light is non-polarized light, a polarizer needs to be attached to the light emitting side of the display panel 10 to ensure that the emitted light is linearly polarized light.

[0071] Figure 2 FIG. 1 shows a sub-pixel arrangement structure diagram in a display panel of an example. Figure 2 As shown, the display panel 10 includes a plurality of rows of sub-pixels, and each row of sub-pixels is arranged in a first direction (X direction in the figure) at intervals by a shading unit. In this example, the shading unit is a black matrix BM.

[0072] Reference Figure 2 As shown, in this example, the aperture ratio of the sub-pixel is 1 / 2. Specifically, the sum of the widths of a sub-pixel and a shading unit in the first direction is w, the width of the sub-pixel in the first direction is 1 / 2w, and the ratio of the width of the sub-pixel in the first direction to the sum of the widths of the sub-pixel and the shading unit BM in the direction is 1 / 2. It should be understood that the sub-pixels are arranged at equal intervals.

[0073] Continue to refer to Figure 2As shown, specifically with respect to the layout of the sub-pixels, the sub-pixels are arranged in multiple rows along the second direction (the Y direction in the figure). The multiple sub-pixels include a first sub-pixel emitting a first color light, a second sub-pixel emitting a second color light, and a third sub-pixel emitting a third color light. Exemplarily, the first color light may be red, and the first sub-pixel is represented as R, the second color light is green, and the second sub-pixel is represented as G, and the third color light is blue, and the third sub-pixel is represented as B.

[0074] In particular, refer to Figure 1 and Figure 3 As shown, in an embodiment of the present disclosure, the light control device 20 includes a cylindrical lens array, the cylindrical lens array includes a plurality of cylindrical lenses 201, and these cylindrical lenses 201 include a plurality of lens groups, each lens group includes two vertically placed cylindrical lenses 201_1 and 201_2 arranged along a first direction. When there is no need to distinguish between cylindrical lenses, the cylindrical lenses are collectively referred to as cylindrical lenses 201. In an embodiment of the present disclosure, vertical placement means that the angle between the central axis of the cylindrical lens and the normal of the light exit surface 201 of the display panel 10 is 0°.

[0075] At the same time, refer to Figure 3 As shown, the orthographic projection of the cylindrical lens 201 on the display panel 10 covers multiple rows of sub-pixels, the sum of the widths of the sub-pixels in the same row covered by each lens group (the cylindrical lenses 201_1 and 201_2 in the figure) is equal to the sum of the widths of the shading unit BM, the sum of the widths of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal and / or the sum of the widths of the shading units of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal.

[0076] Specific to Figure 3 An example is given in which a group of lens groups is exemplarily shown in the figure. For clarity, one cylindrical lens 201_1 in the lens group is shown in a transparent dotted frame, and the other cylindrical lens 201_2 is filled with transparent gray. The number of the first sub-pixels R in the first row of sub-pixels covered by each cylindrical lens is indicated in the figure.

[0077] It should be noted that Figure 3 The number of sub-pixels covered by a cylindrical lens 201 shown in the figure is only exemplary and is not intended to be limiting. The actual number depends on the number of viewpoints contained in a stereoscopic pixel formed by a cylindrical lens 201 for 3D display.

[0078] Reference Figure 3As shown, taking the first row of sub-pixels as an example, the cylindrical lens 201_1 covers a total of 14 first sub-pixels R in the first row and 13 light shielding units BM between the 14 first sub-pixels R, and the cylindrical lens 201_2 covers a total of 14 light shielding units BM in the first row and 13 first sub-pixels R between the 14 light shielding units BM. With this arrangement, the cylindrical lens 201_1 and the cylindrical lens 201_2 are essentially a lens group. After the two are coordinated, the total number of first sub-pixels R in the first row covered by the lens group is 27, and the total number of light shielding units BM in the first row covered is also 27. At the same time, the number of first sub-pixels R in the first row covered by the cylindrical lens 201_1 is different from the number of first sub-pixels R in the first row covered by the cylindrical lens 201_2. Because the width of the shading unit BM is the same as the width of the sub-pixel, that is, it is equivalent to the position corresponding to the first sub-pixel R in the first row of sub-pixels covered by the cylindrical lens 201_1, the shading unit BM is set in the cylindrical lens 201_2, so that the first sub-pixel R in the first row and the shading unit BM are complementary, and of course, the same is true for other rows of sub-pixels. Through the complementary setting, in one lens group, the area of ​​the shading unit BM covered by each cylindrical lens has a sub-pixel set at the corresponding position of another cylindrical lens in the group.

[0079] It should be noted that when the above positional relationship is satisfied, the number of viewpoints covered by the cylindrical lens and N are prime numbers to each other, that is, in this example, the number of viewpoints covered by the cylindrical lens is not an even number to form the complementary arrangement of the above sub-pixels and shading units.

[0080] In particular, adjacent rows of sub-pixels are arranged in a staggered manner. Figure 2 In the example, the 3i+1th row of sub-pixels is the first sub-pixel R, the 3i+2nd row of sub-pixels is the second sub-pixel G, and the 3i+3rd row of sub-pixels is the third sub-pixel B, and i is an integer greater than or equal to 0. Adjacent rows of sub-pixels are arranged with a staggered width of one sub-pixel, for example, the first second sub-pixel G in the second row is laterally staggered with the first first sub-pixel R in the first row by one sub-pixel, and each second sub-pixel G in the second row is sequentially aligned with the shading unit BM in the first row, and the sub-pixels in odd columns are aligned, and the sub-pixels in even columns are aligned.

[0081] It should be particularly noted that the distance between adjacent rows of sub-pixels is not necessarily limited to the width of the above-mentioned one sub-pixel, i.e., 1 / 2w. When a lens group is set, the offset relationship between adjacent rows of sub-pixels should satisfy the following conditions: the sum of the width of the sub-pixel in the first direction and the width of the shading unit BM adjacent to the sub-pixel in the same direction is w, and the two adjacent rows of sub-pixels are offset by a distance of m / N times w, wherein w is greater than 0, m is a positive integer, and m and N are prime numbers to each other.

[0082] The above-mentioned setting, through the coordination of the arrangement of the cylindrical lens and the sub-pixel, realizes the complementarity of the position of the sub-pixel in a lens group and the position of the shading unit, thereby ensuring that the dark spot positions corresponding to all the shading units in the cylindrical lens group can be covered by the light emitted by the sub-pixel at the corresponding position of another cylindrical lens in the group after refraction through the cylindrical lens, thereby eliminating the moiré pattern in the 3D picture. More importantly, through this setting, the cylindrical lens is placed vertically, which achieves low crosstalk while eliminating the moiré pattern. While eliminating the moiré pattern, the misalignment of the sub-pixel position between rows is used to avoid the bright spot of the image from occupying too small an area, forming an effect of uniform distribution of sub-pixels, so that the image bright spot is evenly distributed, and the aperture ratio is effectively improved.

[0083] It should be noted that the arrangement of sub-pixels with a 1 / 2 aperture ratio in the embodiment of the present disclosure is not limited to Figure 2 and Figure 3 The structure shown, Figure 2 and Figure 3 It is shown that the sub-pixels in the same row emit the same color, and the sub-pixels in adjacent rows emit different colors, but the present disclosure is not limited thereto.

[0084] Optionally, adjacent sub-pixels in the same row of sub-pixels have different colors.

[0085] Figure 4 Another sub-pixel arrangement is shown. In this example, each row includes a periodically arranged first sub-pixel R, a second sub-pixel G, and a third sub-pixel B, and each period is "RGB" in sequence. Each sub-pixel has the same luminous color as the sub-pixel in the next row that is offset to the left by one.

[0086] Figure 5 Another sub-pixel arrangement is shown. In this example, each row includes a first sub-pixel R, a second sub-pixel G, and a third sub-pixel B that are periodically arranged, and each period is "RGB" in sequence. Each sub-pixel has the same luminous color as the sub-pixel that is offset to the right by one in the next row.

[0087] Of course, the arrangement order of the first sub-pixel R, the second sub-pixel G and the third sub-pixel B is not limited to the above examples. Figure 5 and Figure 6 Under the sub-pixel arrangement mode, the cylindrical lens 201 is arranged in the same manner as Figure 3 The method is the same as in , and will not be repeated here.

[0088] Figure 6 Another example of the arrangement of sub-pixels of a display panel and the arrangement of the cylindrical lens 201 in a display module is shown. For the convenience of illustration, Figure 6Each cylindrical lens 201 covers 12 sub-pixels and the number of sub-pixels in a row is at most 3, but those skilled in the art should understand that the number of rows and columns of sub-pixels covered by each cylindrical lens 201 in the present disclosure is not limited thereto.

[0089] In this example, the aperture ratio of the sub-pixel is 1 / 4. Specifically, the sum of the widths of a sub-pixel and a shading unit in the first direction (X direction in the figure) is w, the width of the sub-pixel in the first direction is 1 / 4w, and the ratio of the width of the sub-pixel in the first direction to the sum of the widths of the sub-pixel and the shading unit BM in the direction is 1 / 4. It should be understood that the sub-pixels are arranged at equal intervals.

[0090] Continue to combine Figure 1 and Figure 6 As shown, in this embodiment Figure 2 The same point of the light control device 20 shown is that the light control device 20 includes a cylindrical lens array, and the cylindrical lens array includes a plurality of cylindrical lenses 201, and these cylindrical lenses 201 include a plurality of lens groups. The difference is that each lens group includes four vertically placed cylindrical lenses 201_1, 201_2, 201_3 and 201_4 arranged along a first direction. Vertical placement also means that the angle between the central axis of the cylindrical lens and the normal of the light exit surface 201 of the display panel 10 is 0°. When there is no need to distinguish cylindrical lenses, the cylindrical lenses are collectively referred to as cylindrical lenses 201.

[0091] The orthographic projection of the cylindrical lens 201 on the display panel 10 covers multiple rows of sub-pixels, the sum of the widths of the sub-pixels in the same row covered by each lens group (201_1, 201_2, 201_3 and 201_4 in the figure) is equal to the sum of the widths of the shading unit BM, the sum of the widths of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal and / or the sum of the widths of the shading units of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal.

[0092] Specific to Figure 6 As an example, a group of lens groups is exemplarily shown in the figure. For the sake of clarity, the cylindrical lenses 201_1 and 201_3 in the lens group are shown in transparent dotted boxes, and the cylindrical lenses 201_2 and 201_4 are filled with transparent gray.

[0093] Reference Figure 6As shown, taking the first row of sub-pixels as an example, the cylindrical lens 201_1 covers three first sub-pixels R in the first row and two shading units BM between the three first sub-pixels R, which is a shading unit BM with a width equivalent to six sub-pixels and first sub-pixels R with a width of three sub-pixels; the cylindrical lens 201_2 covers two complete shading units BM, one 1 / 4 shading unit BM and two first sub-pixels R in the first row, which is a shading unit BM with a width equivalent to seven sub-pixels and first sub-pixels R with a width of two sub-pixels. R; cylindrical lens 201_3 covers 2 / 4 shading units BM, 1 complete shading unit BM, 2 1 / 4 shading units BM and 2 first sub-pixels R in the first row, which is a total of 7 shading units BM with a width of sub-pixels and 2 first sub-pixels R with a width of sub-pixels; cylindrical lens 201_4 covers 1 / 4 shading units BM, 2 complete shading units BM and 2 first sub-pixels R in the first row, which is a total of 7 shading units BM with a width of sub-pixels and 2 first sub-pixels R with a width of sub-pixels. The same applies to other rows of sub-pixels.

[0094] The position of each sub-pixel in the cylindrical lenses 201_1, 201_2, 201_3 and 201_4 corresponds to different positions of the light shielding unit BM in the cylindrical lens 201_1, or in other words, the positions of the sub-pixels in the cylindrical lenses 201_2, 201_3 and 201_4 in the lens group are all different.

[0095] Through this arrangement, the sub-pixels and the light shielding units BM in each row of the cylindrical lenses 201_1, 201_2, 201_3 and 201_4 are complemented as a combination. That is, in a lens group, the area of ​​the light shielding unit BM covered by each cylindrical lens has a sub-pixel arranged at the corresponding position of another cylindrical lens in the group.

[0096] It should be noted that when the above positional relationship is satisfied, the number of viewpoints covered by the cylindrical lens and N should be prime numbers to each other. That is, in this example, the number of viewpoints covered by the cylindrical lens is not an even number to form the complementary arrangement of the above sub-pixels and shading units.

[0097] Continue to refer to Figure 6As shown, adjacent rows of sub-pixels are arranged in a staggered manner. Specifically, in terms of the layout of sub-pixels, the 3i+1th row of sub-pixels are first sub-pixels R, the 3i+2nd row of sub-pixels are second sub-pixels G, and the 4i+3rd row of sub-pixels are third sub-pixels B, where i is an integer greater than or equal to 0. Adjacent rows of sub-pixels are arranged with a staggered width of one sub-pixel, for example, the first second sub-pixel G of the second row is horizontally staggered with the first first sub-pixel R of the first row, the first third sub-pixel B of the third row is horizontally staggered with the first second sub-pixel G of the second row, the first first sub-pixel R of the fourth row is horizontally staggered with the first third sub-pixel G of the third row, and the sub-pixels of the fifth row are second sub-pixels G, whose vertical positions correspond to the sub-pixels of the first row, and so on. The sub-pixel structure with a 1 / 4 aperture ratio has an arrangement period of every four rows.

[0098] It should be particularly noted that the distance between adjacent rows of sub-pixels is not necessarily limited to the width of 1 / 4w of the above-mentioned sub-pixel. When a lens group is set, the offset relationship between adjacent rows of sub-pixels should meet the following conditions: the sum of the width of the sub-pixel in the first direction and the width of the shading unit BM adjacent to the sub-pixel in this direction is w, and the two adjacent rows of sub-pixels are staggered at a distance of m / N times w, where w is greater than 0, m is a positive integer, and m and N are prime numbers to each other.

[0099] The above-mentioned setting, through the coordination of the arrangement of the cylindrical lens and the sub-pixel, realizes the complementarity of the position of the sub-pixel in a lens group and the position of the shading unit, thereby ensuring that the dark spot positions corresponding to all the shading units in the cylindrical lens group can be covered by the light emitted by the sub-pixel at the corresponding position of another cylindrical lens in the group after refraction through the cylindrical lens, thereby eliminating the moiré pattern in the 3D picture. More importantly, through this setting, the cylindrical lens is placed vertically, which achieves low crosstalk while eliminating the moiré pattern. While eliminating the moiré pattern, the misalignment of the sub-pixel position between rows is used to avoid the bright spot of the image from occupying too small an area, forming an effect of uniform distribution of sub-pixels, so that the image bright spot is evenly distributed, and the aperture ratio is effectively improved.

[0100] Figure 7 Another example of the arrangement of sub-pixels of a display panel and the arrangement of the cylindrical lens 201 in a display module is shown. For the convenience of illustration, Figure 7 Each cylindrical lens 201 covers 9 rows of sub-pixels and the number of sub-pixels in a row is at most 3, but those skilled in the art should understand that the number of rows and columns of sub-pixels covered by each cylindrical lens 201 in the present disclosure is not limited thereto.

[0101] In this example, the aperture ratio of the sub-pixel is 2 / 3. Specifically, the sum of the widths of a sub-pixel and a shading unit in the first direction (X direction in the figure) is w, the width of the sub-pixel in the first direction is 2 / 3w, and the ratio of the width of the sub-pixel in the first direction to the sum of the widths of the sub-pixel and the shading unit BM in the direction is 2 / 3. It should be understood that the sub-pixels are arranged at equal intervals.

[0102] Continue to combine Figure 1 and Figure 7 As shown, the light control device 20 in this embodiment is similar to the light control device 20 in the above embodiment in that the light control device 20 includes a cylindrical lens array, and the cylindrical lens array includes a plurality of cylindrical lenses 201, and these cylindrical lenses 201 include a plurality of lens groups. The difference is that each lens group includes four vertically placed cylindrical lenses 201_1, 201_2 and 201_3 arranged along a first direction. Vertical placement also means that the angle between the central axis of the cylindrical lens and the normal of the light exit surface 201 of the display panel 10 is 0°. When there is no need to distinguish cylindrical lenses, the cylindrical lenses are collectively referred to as cylindrical lenses 201.

[0103] The orthographic projection of the cylindrical lens 201 on the display panel 10 covers multiple rows of sub-pixels, the sum of the widths of the sub-pixels in the same row covered by each lens group (201_1, 201_2 and 201_3 in the figure) is equal to the sum of the widths of the shading unit BM, the sum of the widths of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal and / or the sum of the widths of the shading units of the sub-pixels in the same row covered by each cylindrical lens in the lens group is not equal.

[0104] Specific to Figure 7 As an example, a group of lens groups is exemplarily shown in the figure. For the sake of clarity, the cylindrical lenses 201_1 and 201_3 in the lens group are shown in transparent dotted boxes, and the cylindrical lens 201_2 is filled with transparent gray.

[0105] Reference Figure 7 As shown, taking the first row of sub-pixels as an example, the cylindrical lens 201_1 covers three first sub-pixels R in the first row and two shading units BM between the three first sub-pixels R, which is a sub-pixel width of 6 shading units BM and a width of 2 shading units BM, which is equivalent to a width of 8 shading units BM; the cylindrical lens 201_2 covers two complete first sub-pixels, 1 / 2 of the first sub-pixel R and three shading units BM in the first row, which is equivalent to a width of 8 shading units BM; the cylindrical lens 201_3 covers two complete first sub-pixels R in the first row, one 1 / 2 of the first sub-pixel R and three shading units BM, which is equivalent to a width of 8 shading units BM. The same is true for other rows of sub-pixels.

[0106] Because the width of the shading unit BM is greater than the width of the sub-pixel, the position of the shading unit BM covered by the cylindrical lens 201_1 is where sub-pixels are set in the cylindrical lenses 201_2 and 201_3, and the coverage area of ​​the sub-pixel is greater than the area of ​​the shading unit BM. However, three cylindrical lenses 201 are required to form a cycle, and the right edge of the third cylindrical lens 201_3 just fits the left edge of the first sub-pixel R. Therefore, it can be understood that the arrangement rule of the sub-pixels covered by the subsequent cylindrical lenses should be the same as that of the cylindrical lens 201_1.

[0107] With this arrangement, in one lens group, a region of the light shielding unit BM covered by each cylindrical lens is provided with a sub-pixel at a corresponding position of another cylindrical lens in the group.

[0108] It should be noted that when the above positional relationship is met, the number of viewpoints covered by the cylindrical lens and N should be prime numbers to each other. That is to say, in this example, the number of viewpoints covered by the cylindrical lens must not be at least 3, 6, 9, or other integers that can be divided by 3 in order to form the complementary setting of the above-mentioned sub-pixels and shading units.

[0109] Continue to refer to Figure 8 As shown, two adjacent rows of sub-pixels are arranged in a staggered manner. Specifically, in terms of the layout of sub-pixels, adjacent rows of sub-pixels are arranged with a staggered width of one sub-pixel. For example, the first second sub-pixel G in the second row is horizontally staggered by 0.5 sub-pixels from the first first sub-pixel R in the first row, the first third sub-pixel B in the third row is horizontally staggered by one sub-pixel from the first second sub-pixel G in the second row, the first first sub-pixel R in the fourth row corresponds to the sub-pixel R in the first row, and so on. The sub-pixel structure with a 1 / 4 aperture ratio has an arrangement period of every four rows.

[0110] It should be noted that the distance between adjacent rows of sub-pixels is not necessarily limited to the width 1 / 3w of the above 0.5 sub-pixels. When a lens group is set, the offset relationship between adjacent rows of sub-pixels should meet the following conditions: the sum of the width of the sub-pixel in the first direction and the width of the shading unit BM adjacent to the sub-pixel in the direction is w, and the two adjacent rows of sub-pixels are staggered by a distance of m / N times w, where w is greater than 0, m is a positive integer, and m and N are prime numbers to each other. For example, it is also feasible to stagger adjacent rows of sub-pixels by 2 / 3w, in which case the position of the second row will be interchanged with the position of the third row.

[0111] The above arrangement, through the coordination of the arrangement of the cylindrical lens and the sub-pixel, ensures that the dark spot positions corresponding to all the shading units in the cylindrical lens group can be covered by the light emitted by the sub-pixel at the corresponding position of another cylindrical lens in the group after refraction through the cylindrical lens, thereby eliminating the moiré pattern in the 3D picture. More importantly, through this arrangement, the cylindrical lens is placed vertically, which achieves low crosstalk while eliminating the moiré pattern. While eliminating the moiré pattern, the misalignment of the sub-pixel positions between rows is used to avoid the area occupied by the bright spots of the image being too small, forming an effect of uniform distribution of sub-pixels, so that the imaged bright spots are evenly distributed, effectively improving the aperture ratio.

[0112] Combine the following Figure 8 With a sub-pixel arrangement with a duty cycle of 1 / 3 and a cylindrical lens 201 covering 7 viewpoints, the setting parameters that each cylindrical lens 201 should meet are given. Let n1 represent the refractive index of the cylindrical lens 201, and n2 represent the refractive index of the medium layer (e.g., planarization layer) 30 between the cylindrical lens 201 and the display panel 10. If the medium layer is air, n2 is 1.

[0113] Reference Figure 8 As shown, a represents the width of the sub-pixel, b represents the length of the sub-pixel, b=3a, and taking a pixel composed of RGB as an example, the pixel size is 3b×3b.

[0114] The stereo sub-pixel is composed of RGB under different cylindrical lenses 201, and there is a relationship:

[0115] Plens=k×a

[0116] The placement height h of the cylindrical lens 201 satisfies:

[0117]

[0118] Wherein, k represents the number of viewpoints covered by each cylindrical lens, a represents the width of a sub-pixel, Pd represents the distance between pupils of human eyes, L represents the viewing distance, and Plens represents the aperture of the cylindrical lens 201. Of course, in this example, k can be 7, and in other cases, k is taken according to actual conditions.

[0119] Furthermore, according to the relationship between the radius of curvature R and the refractive index of the medium:

[0120] R = h × (n1-n2)

[0121] Thus we get

[0122] In another alternative embodiment, referring to Fig. 9 and Fig.10As shown, the display module includes: a display panel 10 and a light control device 20 disposed on the light emitting side of the display panel 10. In this embodiment, the light control device 20 includes: a light control component 210.

[0123] Combination Fig.10 As shown, the light control component 210 includes: a first conductive substrate 211, a second conductive substrate 212, and a liquid crystal layer 213 disposed between the first conductive substrate 211 and the second conductive substrate 212. The first conductive substrate 211 includes at least one first conductive layer 2112 disposed on the first substrate 2111, and the second conductive substrate 212 includes at least one second conductive layer 2122 disposed on the second substrate 2121. The layout of the liquid crystal layer 213 can be arranged using twisted nematic (TN) liquid crystal or super-twisted nematic (STN) liquid crystal.

[0124] Combination Fig.10 , Fig.11 and Fig.12 The first conductive layer 2112 includes a plurality of first strip electrodes L1 arranged at intervals, and the second conductive layer 2122 includes a plurality of second strip electrodes L2 arranged at intervals, wherein, when no distinction is needed, the first strip electrodes are collectively referred to as first strip electrodes L1, and the second strip electrodes are collectively referred to as second strip electrodes L2. The orthographic projection of the first strip electrodes L1 of the first conductive substrate 211 on the first substrate 2111 is interlaced with the orthographic projection of the second strip electrodes L2 of the second conductive substrate 212 on the first substrate 2121.

[0125] Through this configuration, by utilizing the arrangement and interlacing of the first strip electrodes and the second strip electrodes, moiré patterns can be eliminated while ensuring that crosstalk is not increased.

[0126] Optionally, refer to Fig.11 As shown, the first conductive substrate 211 includes a first conductive layer 2112, and the second conductive substrate 212 includes a second conductive layer 2122. The first conductive layer 2112 includes a plurality of first strip electrodes L1-1 arranged at intervals in one direction, and the second conductive layer 2122 includes a plurality of second strip electrodes L2-1 arranged at intervals in another direction, and at the same time, the orthographic projection of the first strip electrode L1-1 on the first substrate intersects with the orthographic projection of the second strip electrode on the first substrate. Both the first strip electrode and the second strip electrode can be transparent or translucent conductive materials, such as ITO, or other metal oxides. In each conductive layer, the width of the first conductive strip can be greater than or equal to 1 micron and less than or equal to 50 microns, and the interval is greater than or equal to 1 micron and less than or equal to 10 microns, but is not limited thereto.

[0127] Through this arrangement, the gaps f1 between the first strip electrodes L1-1 in the first conductive layer 2112 are also arranged in a direction that crosses the gaps f2 between the second strip electrodes L2-1 in the second conductive layer 2122, so that the gaps sequentially arranged in one direction are disrupted after the first conductive substrate 211 and the second conductive substrate 212 are stacked, so that there is no moiré when the human eye views the display image. In addition, the crossing angle between the first strip electrode L1-1 and the second strip electrode L2-1 is adjusted according to the physical parameters of the liquid crystal box and the application of the liquid crystal box and the display panel. Optionally, the angles between the first strip electrode L1-1 and the second strip electrode L2-1 and the vertical direction are both greater than or equal to 0° and less than or equal to 90°. Preferably, the closer the crossing angle between the first strip electrode L1-1 and the second strip electrode L2-1 is to 90°, the better the effect. When the crossing angle is equal to 90°, the effect is best because the overlapping area of ​​the orthographic projection of the first strip electrode L1-1 on the first substrate and the orthographic projection of the second strip electrode L2-1 on the first substrate is the smallest. That is, the human eye cannot observe moiré patterns in the display image and no moiré patterns exist in the image. When the human eye cannot observe moiré patterns, it is essentially equivalent to no moiré patterns in the display image.

[0128] Optionally, refer to Fig.10 As shown, the first conductive substrate 211 includes two first conductive layers 2112 and a first insulating layer disposed between the two first conductive layers 2111, and the second conductive substrate 212 includes two first conductive layers 2122 and a second insulating layer disposed between the two second conductive layers 2122. The first conductive layer 2112 includes a plurality of first strip electrodes L1-2 arranged at intervals, and the second conductive layer 2122 includes a plurality of second strip electrodes L2-2 arranged at intervals, and the first strip electrodes and the second strip electrodes can both be transparent or translucent conductive materials, such as ITO, or other metal oxides. The material of the first insulating layer and the second insulating layer can be silicon (Si) or silicon oxide (SiOx). In each conductive layer, the width of the first conductive strip can be greater than or equal to 1 micron and less than or equal to 50 microns, and the interval is greater than or equal to 1 micron and less than or equal to 10 microns, but is not limited thereto.

[0129] Reference Fig.10 As shown, the arrangement direction of the first strip electrodes L1-2 is the same, and the arrangement direction of the second strip electrodes L2-2 is the same. In this example, the first strip electrodes L1-2 are arranged along the Y direction, and the second strip electrodes L1-2 are arranged along the X direction, and the Y direction is perpendicular to the X direction. Those skilled in the art will understand that the present disclosure is not limited to this, and the arrangement directions of the first strip electrodes L1-2 and the second strip electrodes L2-2 can be the same or cross at other angles.

[0130] Continue to refer to Fig.10As shown, the center line AA' of the spacing region of the second strip electrodes L2-2 of one second conductive layer 2122 along the extension direction coincides with the center line BB' of the second strip electrodes L2-2 of another second conductive layer 2122 along the extension direction. Similarly, the center line of the spacing region of the first strip electrodes L1-2 of one first conductive layer 2112 along the extension direction coincides with the center line of the first strip electrodes L1-2 of another first conductive layer 2112 along the extension direction.

[0131] It should be noted that, in the embodiments of the present disclosure, each conductive substrate is not limited to two conductive layers. If openings still exist after the two conductive layers are interlaced, more conductive layers can be added as needed to further reduce the moiré pattern.

[0132] exist Fig.10 In the example, the first strip electrodes L1-2 are arranged at equal intervals and the distance between the first strip electrodes L1-2 is smaller than the width of the first strip electrodes L1-2, and the second strip electrodes L2-2 are arranged at equal intervals and the distance between the second strip electrodes L2-2 is smaller than the width of the second strip electrodes L2-2, so that there is no gap after the two conductive layers of each of the first conductive substrate 211 and the second conductive substrate 212 overlap, thereby completely eliminating the moiré pattern.

[0133] Alternatively, refer to Fig.12 As shown, the first conductive substrate 211 includes two first conductive layers 2112 and a first insulating layer disposed between the two first conductive layers 2112, and the second conductive substrate 212 includes two second conductive layers 2122 and a second insulating layer disposed between the two second conductive layers 2122. The first conductive layer 2112 includes a plurality of first strip electrodes arranged at intervals. Fig.12 The first strip electrode in one layer is marked as L1-3, and the first strip electrode in another layer is marked as L1-4. The second conductive layer 2122 includes a plurality of second strip electrodes arranged at intervals. Fig.12 The second strip electrodes in one layer are labeled as L2-3, and the second strip electrodes in another layer are labeled as L2-4.

[0134] When the center line of the spacing area of ​​one layer of second strip electrodes along the extension direction coincides with the center line BB' of another layer of second strip electrodes along the extension direction, and the center line of the spacing area of ​​one layer of first strip electrodes along the extension direction coincides with the center line of another layer of first strip electrodes along the extension direction, the opening ratio of the first strip electrodes of each layer in the first conductive substrate 211 is 50%.

[0135] In other words, in the two first conductive layers 2112, the width of the first strip electrode L1-3 is equal to the spacing between the first strip electrodes L1-3, and the center line of the first strip electrode L1-3 coincides with the center line of the spacing area of ​​the first strip electrode L1-3. At the same time, the width of the first strip electrode L1-4 is equal to the spacing between the first strip electrodes L1-4, and the center line of the first strip electrode L1-4 coincides with the center line of the spacing area of ​​the first strip electrode L1-4. In addition, the width of the first strip electrode L1-3 is equal to that of the first strip electrode L1-4.

[0136] Similarly, in the two second conductive layers 2122, the width of the second strip electrodes L2-3 is equal to the spacing between the second strip electrodes L2-3, and the center line of the second strip electrode L2-3 coincides with the center line of the spacing area of ​​the second strip electrode L2-3. At the same time, the width of the second strip electrode L2-4 is equal to the spacing between the second strip electrodes L2-4, and the center line of the second strip electrode L2-4 coincides with the center line of the spacing area of ​​the second strip electrode L2-4. In addition, the width of the second strip electrode L2-3 is equal to that of the second strip electrode L2-4.

[0137] Therefore, after the two conductive layers in the first conductive substrate overlap, the patterns of the conductive layers are completely complementary to form a surface electrode, and after the two conductive layers in the second conductive substrate overlap, the patterns of the conductive layers are completely complementary to form a surface electrode. Therefore, no moiré pattern is generated after light passes through the two conductive substrates, achieving the purpose of completely eliminating moiré pattern.

[0138] Optionally, the first strip electrode of the first conductive substrate 211 and the second strip electrode of the second conductive substrate 212 of the light control device 20 can cooperate with each other to form multiple areas, each area can independently apply voltage to the liquid crystal in the liquid crystal box, so as to cooperate with the cylindrical lens array thereon to realize regional 2D display and 3D display.

[0139] Specifically, when the liquid crystal box is powered on, the horizontally polarized light of the display panel 10 is deflected 90° into vertical polarization after passing through the liquid crystal box, and its propagation direction remains unchanged after passing through the cylindrical lens array, thus presenting a 2D display; when the liquid crystal box is not powered on, the horizontally polarized light of the display panel 10 is not deflected after passing through the liquid crystal box, and the polarization state of the outgoing light remains unchanged, and its propagation direction changes after passing through the cylindrical lens, thus presenting a 3D display state.

[0140] By providing a liquid crystal box that can be independently partitioned and dotted, the corresponding area can be powered on or off as needed, thereby achieving full-screen 2D display, full-screen 3D display, partial area 2D display and partial area 3D display.

[0141] Alternatively, in combination Fig. 9 , Fig.10 and Fig.13 As shown, the first conductive substrate 211 is arranged on the side of the liquid crystal layer 213 close to the display panel 10, and the second conductive substrate 212 is arranged on the side of the liquid crystal layer 213 away from the display panel 10. The light control device 20 also includes: a combined grating 200 arranged on the side of the second conductive substrate 212 away from the display panel 10.

[0142] The combined grating 200 includes: a lens unit and a resin layer 202' covering the light-emitting surface of the lens unit. The lens unit includes a plurality of lenses 201', the material of the lenses is a solidified liquid crystal material, the molecular orientation of the liquid crystal in the solidified liquid crystal material is parallel to the grating center axis of the combined grating 200, and the refractive index N0 of the liquid crystal in the solid liquid crystal material perpendicular to the liquid crystal optical axis direction is equal to the refractive index of the resin layer, and the refractive index Ne of the liquid crystal parallel to the liquid crystal optical axis direction is greater than the refractive index of the resin layer.

[0143] Through this arrangement, the coordination between the lens unit composed of solid liquid crystal and the refractive index of the resin layer can be utilized to make the propagation directions of polarized light with different polarization directions different after passing through the liquid crystal grating, so that the light regulated by the light control component composed of the liquid crystal box can be selectively transmitted directly or refracted before transmission. That is, after the polarized light with a vibration direction parallel to the central axis of the grating passes through the birefringent grating, the light is controlled by the lens 201', and after the polarized light with a vibration direction perpendicular to the central axis of the grating passes through the birefringent grating, the light is not affected by the lens 201'. In other words, the coordination between the combined grating 200 and the liquid crystal box realizes 2D display and 3D display in different regions.

[0144] Optionally, the display panel includes a color filter layer, and the refractive index of the medium between the surface of the lens close to the display panel and the light emitting surface of the color filter layer is greater than or equal to 1.3 and less than or equal to 1.7. More preferably, the refractive index is greater than or equal to 1.4 and less than or equal to 1.6. The materials of these media include rigid and / or flexible lens materials such as glass, PMMA (polymethyl methacrylate), and adhesive layer.

[0145] Alternatively, a cover plate 40 or the like may be provided on a side of the light control device 20 away from the display panel 10 for protection, which will not be described in detail herein.

[0146] It should also be noted that in the embodiments of the present disclosure, the light control component formed by the liquid crystal box and the combined grating can cooperate with each other to realize the display of 2D images and 3D images in different regions. Figures 1 to 7 The structure shown can also realize the display of 2D and 3D images in different regions by utilizing the cooperation of the light control component composed of the liquid crystal box and the combined grating.

[0147] Specifically, in Figure 1 The light-emitting side of the display panel shown in the figure and the lens array are provided with a Figures 9 to 12The light control assembly shown, and the lens array is Fig.13 The combined grating structure shown in the figure, the lens in the combined grating includes Figure 1 The cylindrical lens in.

[0148] Through this setting, the formation of moiré patterns during the pixel light emission and light control process of the light control component can be avoided, thereby providing a good visual experience.

[0149] Reference Figures 14 to 19 As shown, the second aspect of the present disclosure provides a method for manufacturing the display module of the above embodiment, the display module includes a combined grating 200, the method comprising: forming a stacked arrangement of Fig. 9 The display panel 10 and the light control device 20 shown, the method further includes:

[0150] Step S1, providing a supporting substrate and a concave film layer;

[0151] Step S2, aligning and fixing the orientation surface of the support substrate and the concave surface of the concave film layer;

[0152] Step S3, pouring liquid crystal into the space between the concave film layer and the supporting substrate, aligning and curing; and

[0153] Step S4: removing the supporting substrate to form a combined grating in the light control device.

[0154] Through the above settings, a combined grating composed of solid liquid crystal material and solid resin material is formed using a simple process, so that polarized light with different polarization directions can propagate in different directions after passing through the liquid crystal grating, eliminating moiré patterns with a lower risk of crosstalk and achieving a better 3D display effect.

[0155] In step S1, refer to Fig.14 As shown, a support substrate 2011 is provided, and the support substrate 2011 may be PI glass, and the support substrate 2011 has been subjected to an orientation rubbing treatment. Fig.15 As shown, a concave film layer 2012 is provided, the concave film layer 2012 includes a substrate, and the concave film layer is also oriented and rubbed, and the number of rubbings is determined according to the morphology.

[0156] In step S2, refer to Fig.16 As shown, the orientation surface of the support substrate 2011 is aligned and fixed with the concave surface of the concave film layer 2012. Specifically, the friction directions are opposite during alignment, and a pad ball or a gasket 2013 is used to control the thickness of the support gap.

[0157] In step S3, liquid crystal is poured into the space between the concave film layer 2012 and the supporting substrate 2011, oriented and cured. Fig.17As shown, the aligned middle piece is placed in a temperature control box and preheated to a preset temperature, such as 80°C. Then, according to the needs, a proper amount of curable liquid crystal is added to the clear point, and the preheated middle piece is taken out and filled with liquid liquid crystal. Fig.18 As shown, the device after the liquid crystal is poured is placed on a heating platform for flattening and full orientation. Fig.19 As shown, after sufficient orientation, ultraviolet light (UV) curing is used.

[0158] In step S4 , the support substrate 2011 is removed to form the combined grating 200 in the light control device.

[0159] The third aspect of the present disclosure provides a display device, including the display module of the embodiment of the present disclosure. The display device can be a wearable device, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator, etc., including any display product or component capable of realizing 3D image display, which is not limited in the present embodiment.

[0160] The specific structure and function of the display module included in the above display device have been described in detail in the above embodiments and will not be repeated here.

[0161] In this embodiment, by providing the above display module in the display device, it is possible to eliminate moiré patterns in the 3D image and reduce crosstalk, thereby effectively improving the user experience and providing a higher display quality.

[0162] In response to the current existing problems, the present disclosure develops a display module and a manufacturing method thereof, as well as a display device. By providing a light control device arranged on the light-emitting side of the display panel, the light emitted by the display panel can be regulated to display a three-dimensional image without moiré, thereby improving the display quality and the user's visual experience, and has broad application prospects.

[0163] Obviously, the above embodiments of the present disclosure are merely examples for clearly illustrating the present disclosure, and are not limitations on the implementation methods of the present disclosure. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present disclosure are still within the protection scope of the present disclosure.

Claims

1. A display module, characterized in that: include: A display panel comprising a plurality of sub-pixels arranged in an array; The light control device is arranged on the light emitting side of the display panel, and at least when the display device is in a three-dimensional display state, the light emitted by the display panel is controlled to display a three-dimensional picture, and the three-dimensional picture has no moiré.

2. The display module according to claim 1, characterized in that: The display panel includes a plurality of rows of sub-pixels, each row of sub-pixels is arranged in a first direction at intervals by a shading unit, a ratio of a width of the sub-pixel in the first direction to a sum of a width of the sub-pixel and a width of the shading unit in the direction is n / N, n and N are positive integers, n is less than N, The light control device comprises a cylindrical lens array, the cylindrical lens array comprises a plurality of lens groups, each lens group comprises N cylindrical lenses arranged vertically along the first direction, In one of the lens groups, in the area of ​​the shading unit covered by each of the cylindrical lenses, a sub-pixel is arranged at a corresponding position of at least one cylindrical lens in the group, and Two adjacent rows of sub-pixels are arranged in a staggered manner.

3. The display module according to claim 2, characterized in that: The sum of the width of the sub-pixel in the first direction and the width of the shading unit adjacent to the sub-pixel in the direction is w, and two adjacent rows of sub-pixels are staggered by a distance of m / N times w. Among them, w is greater than 0, m is a positive integer, and m and N are prime to each other.

4. The display module according to claim 2, characterized in that: The cylindrical lens covers multiple rows of sub-pixels in the orthographic projection of the display panel, the sum of the widths of the sub-pixels in the same row among the sub-pixels covered by each lens group is equal to the sum of the widths of the shading units, the sum of the widths of the sub-pixels in the same row among the sub-pixels covered by each cylindrical lens in the lens group is not equal and / or the sum of the widths of the shading units of the sub-pixels in the same row among the sub-pixels covered by each cylindrical lens in the lens group is not equal.

5. The display module according to claim 2, characterized in that: The number of viewpoints covered by each cylindrical lens and N are mutually prime numbers.

6. The display module according to claim 2, characterized in that: The lens aperture Plens of the cylindrical lens satisfies: Plens=k×a The placement height h of the cylindrical lens satisfies: Wherein, k represents the number of viewpoints covered by each cylindrical lens, a represents the width of the sub-pixel, L represents the viewing distance of the human eye, and Pd represents the distance between the pupils of the human eye.

7. The display module according to claim 2, characterized in that: The sub-pixels in the same row emit the same color, while the sub-pixels in adjacent rows emit different colors, or Adjacent sub-pixels in the same row have different colors.

8. The display module according to claim 1, characterized in that: The light control device comprises: a first conductive substrate, a second conductive substrate and a liquid crystal layer arranged between the first conductive substrate and the second conductive substrate. The first conductive substrate includes at least one first conductive layer disposed on a first substrate, and the second conductive substrate includes at least one second conductive layer disposed on a second substrate. The first conductive layer includes a plurality of first strip electrodes arranged at intervals, and the second conductive layer includes a plurality of second strip electrodes arranged at intervals. An orthographic projection of the first strip-shaped electrodes of the first conductive substrate on the first substrate is interlaced with an orthographic projection of the second strip-shaped electrodes of the second conductive substrate on the first substrate.

9. The display module according to claim 8, characterized in that: The first conductive substrate includes a first conductive layer, and the second conductive substrate includes a second conductive layer. An orthographic projection of the first strip-shaped electrode on the first substrate intersects with an orthographic projection of the second strip-shaped electrode on the first substrate.

10. The display module according to claim 8, characterized in that: The first conductive substrate includes two first conductive layers and a first insulating layer disposed between the two first conductive layers, and the second conductive substrate includes two second conductive layers and a second insulating layer disposed between the two second conductive layers. The first strip electrodes are arranged in the same direction, and the second strip electrodes are arranged in the same direction, A center line of the spacing region of the first strip electrodes of one first conductive layer along the extension direction coincides with a center line of the first strip electrodes of another first conductive layer along the extension direction, A center line of the spacing regions of the second strip electrodes of one second conductive layer along the extension direction coincides with a center line of the second strip electrodes of another second conductive layer along the extension direction.

11. The display module according to claim 10, characterized in that: The first strip electrodes are arranged at equal intervals and the distance between the first strip electrodes is equal to the width of the first strip electrodes. The second strip electrodes are arranged at equal intervals and the distance between the second strip electrodes is equal to the width of the second strip electrodes.

12. The display module according to claim 8, characterized in that: The first conductive substrate is disposed on a side of the liquid crystal layer close to the display panel, and the second conductive substrate is disposed on a side of the liquid crystal layer away from the display panel. The light control device further comprises: a combined grating arranged on a side of the second conductive substrate away from the display panel, The combined grating comprises: a lens unit and a resin layer covering the light-emitting surface of the lens unit, The lens unit includes a plurality of lenses, and the material of the lenses is a solidified liquid crystal material. The molecular orientation of the liquid crystal in the solidified liquid crystal material is parallel to the grating central axis of the combined grating, and The refractive index of the liquid crystal in the solid liquid crystal material perpendicular to the liquid crystal optical axis is equal to the refractive index of the resin layer, and the refractive index of the liquid crystal parallel to the liquid crystal optical axis is greater than the refractive index of the resin layer.

13. The display module according to claim 12, characterized in that: The display panel includes a color filter layer, and the refractive index of a medium between a surface of the lens close to the display panel and a light emitting surface of the color filter layer is greater than or equal to 1.3 and less than or equal to 1.

7.

14. A display device, characterized in that: A display module comprising any one of claims 1-13.

15. A method for manufacturing a display module according to claim 12, characterized in that: The display panel and the light control device are stacked. The method further comprises: providing a supporting substrate and a concave film layer; Aligning and fixing the orientation surface of the support substrate and the concave surface of the concave film layer; Filling, aligning and curing the space between the concave film layer and the supporting substrate with liquid crystal; and The supporting substrate is removed to form a combined grating in the light control device.

Images