Display screen and display device

Abstract

This disclosure relates to the field of display technology, specifically to a display screen and a display device. The display screen includes a color resist layer, and the display screen includes a first side and a second side opposite to each other in a first direction. The color resist layer includes a plurality of color resist units arranged along the first direction, and each color resist unit includes at least a first color resist block, a second color resist block, and a third color resist block of different colors. The color resist unit near the first side in the color resist layer is a first edge color resist unit, and the color resist unit near the second side in the color resist layer is a second edge color resist unit. This disclosure enables the color resist column adjacent to the first side in the first edge color resist unit to include first color resist blocks and second color resist blocks arranged along the second direction, and the color resist column adjacent to the second side in the second edge color resist unit to include a third color resist block. When multiple display screens are spliced ​​along the first direction, the area between two adjacent display screens can achieve three-color pixel light display, thereby improving the overall display contrast and display brightness uniformity of the spliced ​​multiple display screens.

Description

Technical Field

[0001] This disclosure belongs to the field of display technology, specifically relating to a display screen and a display device. Background Technology

[0002] In related technologies, the display screen includes a color resist layer comprising red, blue, and green color resist blocks arranged sequentially in one direction. When multiple displays are spliced ​​together, a seam area is created at the splicing point. Since the human eye has varying sensitivities to different colors of light, if the color resist blocks at opposite ends of the seam area are of two different colors—for example, one end of the seam area is blue and the other is red—the human eye may only observe monochrome pixel light along the direction of the seam area, thus affecting the overall display contrast and brightness uniformity of the display device. Summary of the Invention

[0003] The purpose of this disclosure is to provide a display screen and a display device that can achieve color display while also enabling tri-color pixel light display in the seam area between two adjacent display screens.

[0004] This disclosure provides a display screen, which includes a color resist layer. The color resist layer has a first side and a second side opposite to each other in a first direction. The color resist layer includes a plurality of color resist units arranged along the first direction. Each color resist unit includes at least a first color resist block, a second color resist block and a third color resist block arranged in a preset relationship and having different colors.

[0005] The color resist unit adjacent to the first side in the color resist layer is defined as the first edge color resist unit, and the color resist unit adjacent to the second side in the color resist layer is defined as the second edge color resist unit.

[0006] The first edge color resist unit adjacent to the first side includes the first color resist block and the second color resist block arranged along the second direction, and the second edge color resist unit adjacent to the second side includes the third color resist block; the second direction intersects with the first direction.

[0007] In an exemplary embodiment of this disclosure, in the second direction: the size of the first color resist block and the size of the second color resist block in the color resist column adjacent to the first side in the first edge color resist unit are both smaller than the size of the third color resist block in the color resist column adjacent to the second side in the second edge color resist unit;

[0008] The spectral luminous efficiency functions of the first and second color blocks are greater than those of the third color block.

[0009] In one exemplary embodiment of this disclosure, the color resist unit includes a first color resist column, a second color resist column, and a third color resist column arranged sequentially from the first direction;

[0010] The color resist column adjacent to the second side in the second edge color resist unit is the third color resist column, and the color resist column adjacent to the first side in the first edge color resist unit is the first color resist column;

[0011] In the first edge color resist unit: the second color resist column includes the first color resist block and the second color resist block, the first color resist block in the first color resist column and the second color resist block in the second color resist column correspond to each other in the first direction, and the second color resist block in the first color resist column and the first color resist block in the second color resist column correspond to each other in the first direction.

[0012] In one exemplary embodiment of this disclosure, the color resist units other than the first edge color resist unit and the second edge color resist unit are defined as normal color resist units;

[0013] In the normal color resist unit and the second edge color resist unit:

[0014] The first color resist column is a first color resist block, the second color resist column is a second color resist block, and the third color resist column is a third color resist block, and the first color resist column, the second color resist column, and the third color resist column have the same size in the second direction.

[0015] In one exemplary embodiment of this disclosure, in the first edge resist unit:

[0016] The third color resist column includes a plurality of third color resist blocks arranged along the second direction;

[0017] The number of color blocks in the third color block column is equal to the number of color blocks in the second color block column, and they correspond one-to-one in the first direction.

[0018] In an exemplary embodiment of this disclosure, at least one of the first side and the second side is a splicing side, and at least one color block adjacent to the splicing side is provided with a light guide groove in a local area in the first direction;

[0019] A reflective layer is disposed within the light guide groove. The reflective layer includes a first end and a second end opposite to each other in the first direction. The second end is closer to the splicing side than the first end, and the first end is closer to the light incident side of the color resist layer than the second end. The reflective layer is configured to guide at least a portion of the light incident thereon from the splicing side.

[0020] In one exemplary embodiment of this disclosure, a color resist block with the reflective layer is defined as a spliced ​​color resist block, and in the first direction: the size of the spliced ​​color resist block is larger than the size of other color resist blocks besides the spliced ​​color resist block.

[0021] In an exemplary embodiment of this disclosure, a color resist block with the reflective layer is defined as a spliced ​​color resist block. The spliced ​​color resist block has a filter area and a reflective area arranged in the first direction. The reflective area is provided with the light guide groove, and the filter area is provided on the side of the reflective area adjacent to the splicing side.

[0022] The inner wall of the light guide groove near the splicing side is arc-shaped, and the inner wall of the light guide groove near the splicing side protrudes in a direction away from the splicing side.

[0023] This disclosure provides a display device including a plurality of displays as described above, wherein the plurality of displays are spliced ​​together at least along the first direction, and adjacent displays have a splicing seam area.

[0024] In one exemplary embodiment of this disclosure, the display screen has a plurality of light-emitting units, the light-emitting units being located on the light-incident side of the color resist layer and configured to provide a light source to the color resist layer; the light-emitting units correspond one-to-one with the color resist units;

[0025] In this embodiment, multiple light-emitting units in a display screen are configured to be controlled independently; two light-emitting units located on opposite sides of the seam area in the first direction and adjacent to the seam area are controlled jointly.

[0026] The technical solution provided in this disclosure has at least the following advantages:

[0027] The embodiments disclosed herein include a first color resist block, a second color resist block, and a third color resist block arranged according to a preset relationship in each color resist unit, so that each color resist unit can achieve three-color pixel light display through the mixing of the first color resist block, the second color resist block, and the third color resist block, thereby enabling the display screen to display in color.

[0028] Furthermore, when multiple displays are spliced ​​along the first direction, the first and second color resist blocks in the color resist column adjacent to the first side in the first edge color resist unit of two adjacent displays can be mixed with the third color resist block in the color resist column adjacent to the second side in the second edge color resist unit. This allows the splicing seam area between two adjacent displays to also achieve three-color pixel light display, improving the overall display contrast and brightness uniformity of the display device formed by splicing multiple displays.

[0029] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0032] Figure 1 A schematic diagram of the structure of multiple displays spliced ​​together in a display device in the related art is shown.

[0033] Figure 2 A cross-sectional schematic diagram of two adjacent displays in the related art is shown.

[0034] Figure 3 A schematic diagram of the arrangement of color resist blocks in a color resist layer in related technologies is shown.

[0035] Figure 4 It shows Figure 1 A schematic diagram of the structure of multiple color resist layers.

[0036] Figure 5 A schematic diagram of the arrangement of color resist blocks in the color resist layer in an embodiment of this disclosure is shown.

[0037] Figure 6 It shows Figure 5 A schematic diagram of the arrangement of color resist blocks in a normal color resist unit.

[0038] Figure 7 It shows Figure 5 A schematic diagram of the arrangement of color resist blocks in the first edge color resist unit.

[0039] Figure 8 It shows Figure 5 A schematic diagram of the arrangement of color resist blocks in the second edge color resist unit.

[0040] Figure 9 A cross-sectional structural diagram of two displays spliced ​​together in an embodiment of this disclosure is shown.

[0041] Figure 10 A three-dimensional structural diagram of the color resist block in the color resist column adjacent to the seam area in two adjacent displays is shown in an embodiment of this disclosure.

[0042] Figure 11 A cross-sectional schematic diagram of two color resist blocks in a color resist column adjacent to the seam area in two adjacent displays of this disclosure is shown.

[0043] Figure 12 It shows Figure 11 A schematic diagram of the cross-sectional structure of the reflective area and the filter area in two adjacent spliced ​​color resist blocks.

[0044] Figure 13 A schematic diagram showing the angle between the reflective layer and the light-emitting surface of the display screen in an embodiment of this disclosure is shown.

[0045] Figure 14 A schematic diagram showing the arrangement of color resist blocks in four spliced ​​displays in an embodiment of this disclosure is shown.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. Display screen; 200. Display device; 1. Color resist layer; 11. First color resist block; 12. Second color resist block; 13. Third color resist block; 14. First edge color resist unit; 15. Second edge color resist unit; 16. Normal color resist unit; 17. Light guide groove; 18. Reflective layer; 19. Light shielding block; 2. Liquid crystal layer; 3. Driving substrate; 4. Light emitting element; x, first direction; y, second direction. Detailed Implementation

[0048] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0049] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0050] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0051] With the continuous development of display technology, the application of displays is becoming increasingly widespread, not only in televisions, monitors, industrial displays, and medical displays, but also increasingly in outdoor displays. With the rapid development of the outdoor display market, large-size, high-resolution products are becoming the development direction for outdoor displays.

[0052] Traditional liquid crystal displays (LCDs) offer advantages such as low cost and high resolution, making them suitable for outdoor displays. This is achieved by splicing multiple LCD panels together to create a large-screen display. However, when multiple LCD panels are spliced ​​together, seams appear between adjacent panels, affecting the visual effect.

[0053] To eliminate seams, some technologies involve placing LED display panels between adjacent LCD panels. However, adding LED displays increases the overall structural thickness and complexity, leading to higher power consumption. Furthermore, the display stability deteriorates with each additional LED display panel.

[0054] For example, such as Figure 1 As shown, the display device 200 in the related art can be composed of four displays 100 spliced ​​together, and the size of the splicing seam between each display 100 is assumed to be a and b. Figure 2-4 As shown, the arrangement of red color resist R, green color resist G, and blue color resist B in the display screen 100 of the related technology is an R / G / B strip (strip pixel arrangement). Since there are seams around the splicing screen, when the human eye looks at the seam, there will definitely be monochrome pixel light and tricolor pixel light in the direction of the seam extension, which will affect the overall display contrast and display brightness uniformity of the display device 200.

[0055] To solve the above-mentioned technical problems, this disclosure provides a display screen 100, such as... Figure 5 As shown, the display screen 100 includes a color resist layer 1. The display screen 100 has a first side and a second side opposite to each other in a first direction x. The color resist layer 1 includes a plurality of color resist units arranged along the first direction x. Each color resist unit includes at least a first color resist block 11, a second color resist block 12 and a third color resist block 13 arranged according to a preset relationship. The first color resist block 11, the second color resist block 12 and the third color resist block 13 have different colors.

[0056] Specifically, the first color block 11, the second color block 12, and the third color block 13 are configured to filter light so that light of a specific color can pass through, and the emitted light after being filtered by the first color block 11, the second color block 12, and the third color block 13 is of a different color.

[0057] The color resist unit adjacent to the first side in the color resist layer 1 is defined as the first edge color resist unit 14, and the color resist unit adjacent to the second side in the color resist layer 1 is defined as the second edge color resist unit 15.

[0058] The color resist column adjacent to the first side in the first edge color resist unit 14 includes a first color resist block 11 and a second color resist block 12 arranged along the second direction y. The color resist column adjacent to the second side in the second edge color resist unit 15 includes a third color resist block 13. The second direction y intersects the first direction x.

[0059] For example, the first direction x can be perpendicular to the second direction y.

[0060] This disclosure enables the display screen 100 to display colors by including a first color resist block 11, a second color resist block 12, and a third color resist block 13 arranged in a preset relationship in each color resist unit, so that each color resist unit can achieve three-color pixel light display through the mixing of the first color resist block 11, the second color resist block 12, and the third color resist block 13.

[0061] Furthermore, when multiple displays 100 are spliced ​​along the first direction x, in two adjacent displays 100, the first color resist block 11 and the second color resist block 12 in the color resist column adjacent to the first side in the first edge color resist unit 14 can be mixed with the third color resist block 13 in the color resist column adjacent to the second side in the second edge color resist unit 15. This allows the splicing seam area between two adjacent displays 100 to also achieve three-color pixel light display, improving the overall display contrast and display brightness uniformity of the display device 200 formed by splicing multiple displays 100.

[0062] It should be noted that the human eye has varying sensitivities to different colors of light. When the sizes of two different colored resist blocks in the resist columns on opposite sides of the seam are equal, the human eye is more likely to identify the light with stronger color sensitivity in the seam area, resulting in the display of monochromatic pixel light in the seam area. The human eye's sensitivity to light primarily depends on the spectral luminous efficiency function.

[0063] To address the aforementioned issue, in the second direction y: the dimensions of the first color resist block 11 and the second color resist block 12 in the color resist column adjacent to the first side in the first edge color resist unit 14 are both smaller than the dimension of the third color resist block 13 in the color resist column adjacent to the second side in the second edge color resist unit 15. Furthermore, the spectral luminous efficiency functions of the first color resist block 11 and the second color resist block 12 are greater than the spectral luminous efficiency function of the third color resist block 13.

[0064] This disclosure improves the brightness of the color corresponding to the third color block 13 in the splicing area by making the size of the third color block 13, which has the smallest spectral luminous efficiency function, larger than the sizes of the first color block 11 and the second color block 12, which have larger spectral luminous efficiency functions. This enhances the human eye's recognition of the color corresponding to the third color block 13, thereby improving the problem of single-color light protrusion in the splicing area. It also improves the mixing uniformity of the first color block 11, the second color block 12, and the third color block 13 in the splicing area, enabling multi-color pixel light display on the light-emitting surface of the display screen 100 in the splicing area, and improving the overall display contrast and display brightness uniformity of the display device 200 formed by splicing multiple display screens 100.

[0065] In this disclosure, the first color block 11, the second color block 12, and the third color block 13 can be a red color block, a green color block, and a blue color block, respectively. The spectral luminous efficiency function of the blue color block... The spectral apparent efficiency function of the red color resist block The spectral apparent efficiency function of the green color resist block Since the human eye is not very sensitive to blue light, this disclosure improves the brightness of the corresponding color of the third color block 13 in the seam area by making the third color block 13 a blue color block. However, it is not limited to this. The first color block 11, the second color block 12 and the third color block 13 in this disclosure can be color blocks of colors other than red, green and blue, and can be set according to the actual situation.

[0066] Furthermore, in the second direction y, the size ratio of the first edge color resist unit 14 to all the first color resist blocks 11 and all the second color resist blocks 12 in the color resist column adjacent to the first side can be 1:1 to improve the mixing uniformity of the colors corresponding to the first color resist blocks 11 and the second color resist blocks 12. However, this disclosure is not limited to this. It can also adjust the size ratio of the first edge color resist unit 14 to all the first color resist blocks 11 and all the second color resist blocks 12 in the second direction y according to the difference in sensitivity of the human eye to the colors corresponding to the first color resist blocks 11 and the second color resist blocks 12 (i.e., the magnitude of the spectral luminous efficiency function) to improve the color mixing uniformity at the seam area between adjacent display screens 100.

[0067] In some embodiments, the color resist unit may include a first color resist column, a second color resist column and a third color resist column arranged sequentially from the first side to the second side of the display screen 100 (i.e., the first direction x), and the third color resist column includes a third color resist block 13.

[0068] The color resist column adjacent to the first side in the first edge color resist unit 14 is the first color resist column, and the color resist column adjacent to the second side in the second edge color resist unit 15 is the third color resist column.

[0069] In the first edge color resist unit 14: the second color resist column includes a first color resist block 11 and a second color resist block 12. The first color resist block 11 in the first color resist column corresponds to the second color resist block 12 in the second color resist column in the first direction x, and the second color resist block 12 in the first color resist column corresponds to the first color resist block 11 in the second color resist column in the first direction x. Thus, at any position in the second direction y, the first color resist column, the second color resist column, and the third color resist column in the first edge color resist unit 14 can all achieve three-color light mixing, which improves the color mixing uniformity of the first edge color resist unit 14 in the second direction y, thereby improving the overall display contrast and display brightness uniformity of the display device 200 formed by splicing multiple display screens 100.

[0070] In this disclosure, the three types of color resist blocks corresponding to the first edge color resist unit 14 in the first direction x have the same size in the second direction y, so that the three types of color resist blocks have the same color filtering range in the second direction y, thereby improving the uniformity of light mixing.

[0071] Meanwhile, since the three color resist blocks corresponding to each other in the first direction x have the same size in the second direction y, this disclosure can use the same mask to expose the first color resist block 11, the second color resist block 12 and the third color resist block 13 in the color resist unit at one time, without the need for three different offsets, which simplifies the fabrication process of the color resist layer 1. At the same time, one-time exposure can also reduce the CD (critical dimension) error between adjacent color resist blocks, reduce line width deviation, and reduce the risk of short circuit / open line defects.

[0072] For example, in the first edge color resist unit 14 of this disclosure: the third color resist column is provided with two third color resist blocks 13, wherein one third color resist block 13 corresponds to the first color resist block 11 in the second color resist column, and the other third color resist block 13 corresponds to the second color resist block 12 in the second color resist column, and in the second direction y: the size of the third color resist block 13 is the same as the size of its corresponding first color resist block 11, and at the same time, the size of the third color resist block 13 is the same as the size of its corresponding second color resist block 12.

[0073] Furthermore, in the first direction x, the size of the first color resist block 11 and the second color resist block 12 in the first color resist column of the first edge color resist unit 14 can be equal to the size of the third color resist block 13 in the third color resist column of the second edge color resist unit 15. When multiple displays 100 are spliced ​​in the first direction x, the uniformity of color mixing in the splicing seam area between adjacent displays 100 can be guaranteed.

[0074] It should be noted that the term "color resist block" in this disclosure refers to the collective term for all color resist blocks in a specific structure or a specific region.

[0075] For example, the color resist unit in this disclosure includes a first color resist block 11, a second color resist block 12 and a third color resist block 13. The color resist blocks in the color resist unit refer to the first color resist block 11, the second color resist block 12 and the third color resist block 13.

[0076] The three types of color blocks corresponding to the first edge color resist unit 14 in the first direction x include the first color resist block 11, the second color resist block 12 and the third color resist block 13. The three types of color resist blocks corresponding to the first edge color resist unit 14 in the first direction x refer to the first color resist block 11, the second color resist block 12 and the third color resist block 13.

[0077] The first and second color resist columns in the first edge color resist unit 14 both include a first color resist block 11 and a second color resist block 12. The color resist blocks in the first and second color resist columns of the first edge color resist unit 14 refer specifically to: first color resist block 11 and second color resist block 12. The specific meanings of color resist blocks in other structures or regions are not listed here.

[0078] In some embodiments, in the first edge color resist unit 14: the third color resist column may include a plurality of third color resist blocks 13, which are arranged along the second direction y. The number of color resist blocks in the third color resist column is equal to the number of color resist blocks in the second color resist column, and in the first direction, the color resist blocks in the third color resist column correspond one-to-one with the color resist blocks in the second color resist column.

[0079] The other color resist units besides the first edge color resist unit 14 and the second edge color resist unit 15 are defined as normal color resist units 16.

[0080] The arrangement of the color resist blocks in the normal color resist unit 16 and the second edge color resist unit 15 can be the same as the arrangement of the color resist blocks in the first edge color resist unit 14.

[0081] However, this is not the only possibility. The arrangement of the color resist blocks in the normal color resist unit 16 and the second edge color resist unit 15 may also differ from the arrangement of the color resist blocks in the first edge color resist unit 14.

[0082] For example, in the normal color resist unit 16 and the second edge color resist unit 15: the first color resist column can be a first color resist block 11, the second color resist column can be a second color resist block 12, and the third color resist column can be a third color resist block 13, which can simplify the overall fabrication process of the color resist unit and improve the fabrication efficiency.

[0083] Furthermore, the dimensions of the first, second, and third color resist columns in the second direction y can be the same, so that the first, second, and third color resist columns in the normal color resist unit 16 and the second edge color resist unit 15 can achieve three-color light mixing at any position in the second direction y, thereby improving the color mixing uniformity of the normal color resist unit 16 and the second edge color resist unit 15 in the second direction y, and thus improving the overall display contrast and display brightness uniformity of the display device 200 formed by splicing multiple displays 100.

[0084] In the first direction x and the second direction y, the size of the first edge color resist unit 14 and the size of the second edge color resist unit 15 in this disclosure can be the same as the size of the normal color resist unit 16, so as to improve the neatness of the arrangement of multiple color resist units in the color resist layer, thereby improving the uniformity of the display brightness of the display screen 100.

[0085] In the first direction x, the size ratio of the first color block 11, the second color block 12, and the third color block 13 in the normal color block can be 1:1:1.

[0086] It should be noted that, within the allowable error range, the size ratio of the first color block 11, the second color block 12, and the third color block 13 in a normal color block can also be adjusted based on 1:1:1.

[0087] For example, in the first direction x: the dimensions of the first color block 11, the second color block 12, and the third color block 13 in the normal color block are all defined as P. For details, please refer to... Figure 6 As shown; the dimensions of the first color resist block 11 and the second color resist block 12 in the first color resist column of the first edge color resist unit 14 can both be (5 / 3) × P, and the dimensions of the color resist blocks in the second and third color resist columns of the first edge color resist unit 14 can be (2 / 3) × P. For details, please refer to... Figure 7 As shown; the size of the third color resist block 13 in the third color resist column of the second edge color resist unit 15 can be (5 / 3) × P, and the size of the color resist blocks (including the first color resist block 11 and the second color resist block 12) in the first and second color resist columns of the second edge color resist unit 15 can be (2 / 3) × P. For details, please refer to [reference needed]. Figure 8 As shown.

[0088] Furthermore, adjacent color blocks in the same color resist column (such as the first color resist column, the second color resist column, or the third color resist column) of this disclosure can be spaced apart. When the same color resist column includes color blocks of different colors, the problem of crosstalk between adjacent color blocks can be improved by the spaced area.

[0089] In addition, such as Figure 6-8As shown, the display screen 100 may also include ITO (thin-film transistor) pixel electrodes or signal lines corresponding to the color resist blocks. By spacing the adjacent color resist blocks in the same color resist column, the connection between the pixel electrodes corresponding to the adjacent color resist blocks can be improved, and the driving voltage can be cross-connected, resulting in bright lines or screen flickering.

[0090] In some embodiments, at least one of a first side and a second side of the display screen 100 in a first direction x is a splicing side, and the splicing side is configured to be spliced ​​with splicing sides of other display screens 100.

[0091] Among them, at least one color block adjacent to the splicing side has a light guide groove 17 in a local area in the first direction.

[0092] Specifically, at least one of the following three components—the first color resist block 11 in the color resist column adjacent to the first side of the first edge color resist unit 14, the second color resist block 12 in the color resist column adjacent to the first side of the first edge color resist unit 14, and the third color resist block 13 in the color resist column adjacent to the second side of the second edge color resist unit 15—is provided with a light guide groove 17.

[0093] For example, the light guide groove 17 can be disposed on the first color resist block 11 in the color resist column adjacent to the first side in the first edge color resist unit 14, and the light guide groove 17 can be disposed on the second color resist block 12 in the color resist column adjacent to the first side in the first edge color resist unit 14. At the same time, the light guide groove 17 can also be disposed on the third color resist block 13 in the color resist column adjacent to the second side in the second edge color resist unit 15.

[0094] A reflective layer 18 is disposed within the light guide groove 17. The reflective layer 18 includes a first end and a second end opposite to each other in the first direction x. The second end is closer to the splicing side than the first end, and the first end is closer to the light-incident side of the color resist layer 1 than the second end. The reflective layer 18 is configured to guide at least a portion of the light incident upon it from the splicing side of the display screen 100, thereby enhancing the intensity of the light emitted from the splicing side of the display screen 100. When multiple display screens 100 are spliced, the brightness at the splicing seam area between adjacent display screens 100 can be increased, reducing the difference between the brightness of the splicing seam area and the display brightness on adjacent display screens 100. This can improve the problem of black borders appearing at the splicing seam of multiple spliced ​​display screens 100, reduce the presence of the splicing seam area, increase the display area of ​​the entire display device 200 formed by splicing multiple display screens 100, and improve the overall display effect. (See reference for details.) Figure 9-11 As shown.

[0095] It should be noted that the phrase "the reflective layer 18 is configured to guide at least a portion of the light incident upon it from the splicing side of the display screen 100" means that when the reflective layer 18 is disposed on the first color resist block 11 in the color resist column adjacent to the first side in the first edge color resist unit 14 and / or disposed on the second color resist block 12 in the color resist column adjacent to the first side in the first edge color resist unit 14, the reflective layer 18 can guide light to the first side of the display screen 100; when the reflective layer 18 is disposed on the third color resist block 13 in the color resist column adjacent to the second side in the second edge color resist unit 15, the reflective layer 18 can guide light to the second side of the display screen 100.

[0096] In this disclosure, since the size of the reflective layer 18 in the first direction x is smaller than the size of the corresponding first color resist 11, second color resist 12 and third color resist 13 in the first direction x, while the reflective layer 18 guides the light irradiated on the corresponding color resist from the splicing side, the area in the color resist in which the reflective layer 18 is not provided can also be used to filter the light and guide it to the light-emitting surface of the display screen 100. This can achieve the mixing of light in the color resist with light in other color resists, improve the color mixing uniformity, and thus improve the brightness uniformity of the display screen 100.

[0097] The color resist block with reflective layer 18 is defined as a spliced ​​color resist block.

[0098] In the first direction: the size of the splicing color resist block is larger than the size of other color resist blocks, thereby increasing the light brightness on the color resist columns adjacent to the first side in the first edge color resist unit 14 and the color resist columns adjacent to the second side in the second edge color resist unit 15. When multiple displays 100 are spliced ​​together, more light can be emitted from the color resist columns adjacent to the first side in the first edge color resist unit 14 and the color resist columns adjacent to the second side in the second edge color resist unit 15 to the splicing seam area between the two adjacent displays 100, thereby improving the uniformity of the mixing of the three colors of light in the splicing seam area and improving the overall display brightness uniformity and display contrast of the display device 200 formed by splicing multiple displays 100.

[0099] The light guide groove 17 can be formed on the light-incident surface of the color resist layer 1. During the process of the display light source being guided onto the reflective layer 18, it can reduce or avoid the light passing through the fabrication material of the color resist block (i.e., the color resist material), thereby reducing the light loss before it is guided onto the reflective layer 18 and increasing the intensity of the light emitted from the splicing side after reflection by the reflective layer 18. However, it is not limited to this. The light guide groove 17 can also be formed on other sides of the corresponding color resist block, or the light guide groove 17 can be spaced apart from the sides of the corresponding color resist block, depending on the actual situation.

[0100] like Figure 12As shown, the splicing color resist block has a filter area and a reflective area arranged in the first direction x. The reflective area is provided with a light guide groove 17, and the side of the reflective area adjacent to the splicing side is provided with a filter area. Thus, the light emitted from the reflective layer 18 can be filtered by the filter area before being exported from the splicing side. Since the color of the light exported from the splicing side is the same as the color of the corresponding color resist block, when multiple displays 100 are spliced, the color of the splicing seam area between two adjacent displays 100 can be the same as the color of the two adjacent color resist blocks, so as to achieve a natural color transition between the splicing seam area and the adjacent displays 100, and improve the problem of visual discontinuity between the splicing seam area and the display 100 in the display device 200 formed by splicing multiple displays 100.

[0101] Furthermore, the inner wall of the light guide groove 17 near the splicing side can be curved, and the inner wall of the light guide groove 17 near the splicing side protrudes in a direction away from the splicing side. In this way, the arc-shaped structure located on the light path of the reflective layer 18 can be used to change the direction of the emitted light from the reflective layer 18, so that the light guided by the reflective layer 18 to the splicing side can be three-dimensionally dispersed. Thus, the light emitted from the splicing side can be three-dimensionally dispersed. When multiple displays 100 are spliced, the light emitted from the splicing side can fill the entire splicing seam area, thereby improving the problem of black borders appearing in the splicing seam area and improving the overall display brightness uniformity of the display device 200 formed by splicing multiple displays 100.

[0102] In some embodiments, the display screen 100 may include a light-emitting element 4, which is located on the side of the color resist layer 1 away from the light-emitting surface of the display screen 100, and is configured to provide a display light source to the display screen 100. In this case, the side of the color resist layer 1 closer to the light-emitting element 4 is its light-incident side.

[0103] Furthermore, the light guide groove 17 can be formed on the light-incident surface of the color resist layer 1 (that is, the side of the color resist layer 1 close to the light-emitting element 4). When the light from the light-emitting element 4 shines on the reflective layer 18, it can reduce or avoid the light passing through the color resist material, thereby reducing the loss of light before it is introduced into the reflective layer 18, and increasing the intensity of the light emitted from the splicing side after reflection by the reflective layer 18.

[0104] Furthermore, the sidewall of the light guide groove 17 can be arranged around the periphery of the reflective layer 18, and the bottom surface of the sidewall of the light guide groove 17 near the splicing side (the bottom surface of the light guide groove 17 is the side of the light guide groove 17 that is away from the light-emitting surface of the display screen 100) is located at the second end of the reflective layer 18 near the splicing side and away from the light-emitting surface of the display screen 100, so that the sidewall of the light guide groove 17 can be located on the light path of the light emitted from the reflective layer 18.

[0105] Wherein, the height of the color resist layer 1 in the direction perpendicular to the light-emitting surface of the display screen 100 is defined as D. In the direction perpendicular to the light-emitting surface of the display screen 100, the height difference between the filter area and the reflective area can be (1 / 3)×D~(1 / 2)×D, so as to ensure the connection stability between the splicing color resist block and other structural layers in the display screen 100.

[0106] It should be noted that the light-emitting element 4 in this disclosure can be a mini LED (submillimeter-sized light-emitting diode) light-emitting element 4. The size of the LED chip in the mini LED light-emitting element 4 can be reduced to less than 100μm, which facilitates the fabrication of a high-density LED array. Using the mini LED light-emitting element 4 to provide a display light source for the display screen 100 enables precise control of the local area of ​​the display light source, improving the display contrast and dynamic range of the display screen 100. Mini LED display technology combines the advantages of LCD (liquid crystal display 100) and OLED (organic light-emitting display 100). By using a large number of smaller LED chips, more screen backlight zones can be achieved, resulting in higher peak brightness and better color performance, while also offering better cost and lifespan than OLED. However, this is not the only possibility; the light-emitting element 4 in this disclosure can also be other light-emitting elements besides the mini LED light-emitting element 4, depending on the specific circumstances.

[0107] It should also be noted that, in addition to using the light-emitting element 4 to provide a display light source, the display screen 100 in this disclosure can also utilize ambient light to achieve reflective display, thereby reducing the overall energy consumption of the display screen 100. In this case, the display light source is located on the side of the color resist layer 1 close to the light-emitting surface of the display screen 100.

[0108] like Figure 13 As shown, in some embodiments, the angle θ between the reflective layer 18 and the light-emitting surface of the display screen 100 can be in the range of 45° to 85°.

[0109] For example, the angle θ between the reflective layer 18 and the light-emitting surface of the display screen 100 can be 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, etc., and can be set according to the actual situation.

[0110] This disclosure improves the problem that when the angle between the reflective layer 18 and the light-emitting surface of the display screen 100 is less than 45°, the displacement of the reflected light is not obvious, resulting in less reflected light being emitted from the splicing side. At the same time, it can also improve the problem that when the angle between the reflective layer 18 and the light-emitting surface of the display screen 100 is greater than 85°, the installation stability of the reflective layer 18 is poor due to the large angle.

[0111] It should be noted that the light-emitting surface of the display screen 100 in this disclosure is parallel to the light-incident surface of the color resist layer 1.

[0112] In some embodiments, the color resist layer 1 may include a light-shielding block 19 located between two adjacent color resist blocks. The light-shielding block 19 has light-shielding properties to improve the problem of light crosstalk when the transmitted light colors are different between two adjacent color resist blocks.

[0113] For example: the light-blocking block 19 can be located between the first color block 11 and the second color block 12, the light-blocking block 19 can be located between the second color block 12 and the third color block 13, and the light-blocking block 19 can also be located between the third color block 13 and the first color block 11.

[0114] In some embodiments, the display screen 100 may include a liquid crystal layer 2 and a driving backplate, the liquid crystal layer 2 and the driving backplate being located on the side of the color resist layer 1 away from the light-emitting surface of the display screen 100, and the liquid crystal layer 2 being located on the side of the driving backplate close to the color resist layer 1.

[0115] Thin-film transistors can be disposed on the driving backplane. The thin-film transistors are configured to adjust the electric field on the liquid crystal layer 2, thereby driving the deflection angle of the liquid crystal in the liquid crystal layer 2.

[0116] Furthermore, the display screen 100 may include multiple pixel areas, and multiple thin-film transistors may be disposed on the driving backplane. The multiple thin-film transistors may correspond one-to-one with the pixel areas to realize the partition control of the display screen 100 displaying the image.

[0117] For example, the first color resist block 11 and the second color resist block 12 in the first color resist column of the first edge color resist unit 14 can be driven by a thin film transistor.

[0118] When the display screen 100 includes a light-emitting element 4, the liquid crystal layer 2 and the driving backplate can be located between the light-emitting element 4 and the color resist layer 1.

[0119] In some embodiments, the light guide groove 17 in the color resist layer 1 can be made by nanoimprinting technology or vapor deposition etching process.

[0120] For example, when the light guide groove 17 in the color resist layer 1 is fabricated using nanoimprint technology, the fabrication process may include: 1. Fabrication of the imprint film: Using methods such as electron beam etching, an imprint film with a specific micro / nano structure is fabricated on silicon or other substrates. Since the diffraction limit of electrons is much smaller than that of photons, the imprint film prepared by electron beam etching can achieve a resolution much higher than that of photolithography. 2. Color resist film formation: On a glass substrate, light-shielding blocks 19 are first fabricated to separate different color resist blocks and to shield light. Then, by inkjet printing or other methods, at least one color resist material of blue, red, green, etc., is coated in the area between the light-shielding blocks 19 to form a flat color resist layer 1. 3. Imprinting: First, a layer of photoresist is coated on the surface of the color resist material and the light-shielding block 19 as the imprinting medium layer. Then, the imprint film with the micro / nano structure is aligned with the color resist material and pressed down. By applying pressure, the micro / nano structure on the template is transferred into the photoresist. During this process, it is crucial to ensure that the photoresist is not completely penetrated, leaving a thin layer to prevent direct contact between the template and the glass, thus avoiding scratches and damage to the template. 4. Demolding: First, use ultraviolet light to cure the photoresist, fixing the micro / nano structure formed by imprinting. Then, lift the imprinted film upwards and detach it from the glass substrate. At this point, the micro / nano structure of the template has been replicated on the photoresist, forming an undulating structure. The portion of the color resist material surface covered by the photoresist also forms a corresponding concave-convex contour. 5. Reactive Ion Etching to Remove Residue: Use reactive ion etching (RIE) or similar methods to remove the thin layer of photoresist remaining after imprinting, exposing the surface of the underlying color resist material. Using the photoresist as a mask, etch the exposed color resist material, transferring the micro / nano structure from the photoresist onto the color resist material. After etching, remove all remaining photoresist, ultimately obtaining a color resist block with a micro / nano structure, that is, fabricating the color resist block with light guide groove 17 as disclosed in this disclosure, where the micro / nano structure of the imprinted film is adapted to the shape of the light guide groove 17.

[0121] In some embodiments, a planarization layer may also be provided in the light guide groove 17. The planarization layer is transparent and can fill the gap area in the light guide groove 17 except for the reflective layer 18, so as to improve the stability of the reflective layer 18 installed in the light guide groove 17.

[0122] Specifically, a coating can be applied to the color resist block with the light guide groove 17 as described above, that is, a reflective layer 18 can be deposited on the inner wall of the light guide groove 17 of the color resist block. Next, a light-transmitting material can be filled into the light guide groove 17 to form a planarization layer, which can fill the void area in the light guide groove 17 except for the reflective layer 18.

[0123] For example, when the light guide groove 17 is located on the side of the color resist block that is away from the light-emitting surface of the display screen 100, by setting a flat layer, the support for the reflective layer 18 and the corresponding area of ​​the color resist block can be strengthened, thereby improving the stability of the color resist block installation.

[0124] like Figure 9 and Figure 14 As shown, this disclosure also provides a display device 200, which may include a plurality of displays 100 as described above, wherein the plurality of displays 100 are spliced ​​together at least along a first direction x, and adjacent displays 100 have a splicing seam area.

[0125] This disclosure enables the display screen 100 to display colors by including a first color resist block 11, a second color resist block 12, and a third color resist block 13 arranged in a preset relationship in each color resist unit, so that each color resist unit can achieve three-color pixel light display through the mixing of the first color resist block 11, the second color resist block 12, and the third color resist block 13.

[0126] Furthermore, when multiple displays 100 are spliced ​​along the first direction x, in two adjacent displays 100, the first color resist block 11 and the second color resist block 12 in the color resist column adjacent to the first side in the first edge color resist unit 14 can be mixed with the third color resist block 13 in the color resist column adjacent to the second side in the second edge color resist unit 15. This allows the splicing seam area between two adjacent displays 100 to also achieve three-color pixel light display, improving the overall display contrast and display brightness uniformity of the display device 200.

[0127] It should be noted that when display screens 100 are provided on both opposite sides in the first direction x, the two color resist units at opposite ends of the color resist layer 1 in the first direction x can be respectively set as a first edge color resist unit 14 and a second edge color resist unit 15. When the first side of display screen 100 is spliced ​​with other display screens 100, and the second side of display screen 100 is not spliced ​​with other display screens 100, the color resist unit near the first side of display screen 100 can be set as a first edge color resist unit 14, and the color resist unit near the second side of display screen 100 can be set as a normal color resist unit 16. When the second side of display screen 100 is spliced ​​with other display screens 100, and the first side of display screen 100 is not spliced ​​with other display screens 100, the color resist unit near the second side of display screen 100 can be set as a second edge color resist unit 15, and the color resist unit near the first side of display screen 100 can be set as a normal color resist unit 16.

[0128] That is, the arrangement of the first edge color resist unit 14, the second edge color resist unit 15 and the normal color resist unit 16 in the display screen 100 in this disclosure can be designed according to the position of the splicing side in the display screen 100.

[0129] In some embodiments, the display screen 100 has a plurality of light-emitting units located on the side of the color resist layer 1 away from the light-emitting surface of the display screen 100 (i.e., the light-incident side of the color resist layer 1), and is configured to provide a light source to the color resist layer 1.

[0130] It should be noted that the light-emitting element 4 may include multiple light-emitting units, and each light-emitting unit may include one or more LED beads.

[0131] In this disclosure, multiple light-emitting units in a display screen 100 can be configured to be independently controlled, and each light-emitting unit can correspond one-to-one with a color resist unit. This allows for flexible adjustment of the number and position of the display screen partitions of the display device 200, and independent control of the brightness of each partition's display screen.

[0132] In this disclosure, two light-emitting units located on opposite sides of the seam area in the first direction x and adjacent to the seam area can be jointly controlled. That is, two adjacent light-emitting units in two adjacent displays 100 in the first direction x are electrically connected. In operation, two adjacent light-emitting units in two adjacent displays 100 in the first direction x can be controlled independently as a whole with other light-emitting units. This weakens the display contrast between the adjacent displays 100 and the seam area, reduces the presence of the seam area, increases the display area of ​​the entire display device 200 formed by splicing multiple displays 100, and improves the overall display effect.

[0133] In the description of this specification, the terms "first," "second," "third," "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly and specifically defined.

[0134] Furthermore, it should be noted that terms such as "upper," "lower," "left," and "right" are used only for distinction and convenience of description, and do not impose any positional limitations on the embodiments of the present invention. For example, "upper" in practice can refer to "lower," "left," or "right." In this disclosure, unless otherwise explicitly specified and limited, terms such as "assembly" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0135] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0136] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Therefore, any changes or modifications made in accordance with the claims and description of the present disclosure should fall within the scope of the patent coverage of the present disclosure.

Claims

1. A display screen, characterized by The display screen includes a color resist layer, the color resist layer has a first side and a second side opposite to each other in a first direction, the color resist layer includes a plurality of color resist units arranged along the first direction, each color resist unit includes at least a first color resist block, a second color resist block and a third color resist block arranged in a preset relationship and having different colors; At least one of the first side and the second side is a splicing side, and at least one color block adjacent to the splicing side has a light guide groove in a local area in the first direction; A reflective layer is provided in the light guide groove. The reflective layer includes a first end and a second end opposite to each other in the first direction. The second end is closer to the splicing side than the first end, and the first end is closer to the light incident side of the color resist layer than the second end. The reflective layer is configured to guide at least a portion of the light irradiated thereon from the splicing side. The color resist unit adjacent to the first side in the color resist layer is defined as the first edge color resist unit, and the color resist unit adjacent to the second side in the color resist layer is defined as the second edge color resist unit. The first edge color resist unit adjacent to the first side includes the first color resist block and the second color resist block arranged along the second direction, and the second edge color resist unit adjacent to the second side includes the third color resist block; the second direction intersects with the first direction.

2. The display screen of claim 1, wherein, In the second direction: the size of the first color block and the size of the second color block in the color block column adjacent to the first side in the first edge color block unit are both smaller than the size of the third color block in the color block column adjacent to the second side in the second edge color block unit. The spectral luminous efficiency functions of the first and second color resist blocks are greater than those of the third color resist block.

3. The display screen of claim 1, wherein, The color resist unit includes a first color resist column, a second color resist column, and a third color resist column arranged sequentially from the first direction; The color resist column adjacent to the second side in the second edge color resist unit is the third color resist column, and the color resist column adjacent to the first side in the first edge color resist unit is the first color resist column; In the first edge color resist unit: the second color resist column includes the first color resist block and the second color resist block, the first color resist block in the first color resist column and the second color resist block in the second color resist column correspond to each other in the first direction, and the second color resist block in the first color resist column and the first color resist block in the second color resist column correspond to each other in the first direction.

4. The display screen of claim 3, wherein, The color resist units other than the first edge color resist unit and the second edge color resist unit are defined as normal color resist units; In the normal color resist unit and the second edge color resist unit: The first color resist column is a first color resist block, the second color resist column is a second color resist block, and the third color resist column is a third color resist block, and the first color resist column, the second color resist column, and the third color resist column have the same size in the second direction.

5. The display screen of claim 3, wherein, In the first edge resist unit: The third color resist column includes a plurality of third color resist blocks arranged along the second direction; The number of color blocks in the third color block column is equal to the number of color blocks in the second color block column, and they correspond one-to-one in the first direction.

6. The display screen of claim 1, wherein, A color resist block with the reflective layer is defined as a spliced ​​color resist block. In the first direction, the size of the spliced ​​color resist block is larger than the size of other color resist blocks.

7. The display screen of claim 1, wherein, A color resist block with the reflective layer is defined as a spliced ​​color resist block. The spliced ​​color resist block has a filter area and a reflective area arranged in the first direction. The reflective area is provided with the light guide groove, and the filter area is provided on the side of the reflective area adjacent to the splicing side. The inner wall of the light guide groove near the splicing side is arc-shaped, and the inner wall of the light guide groove near the splicing side protrudes in a direction away from the splicing side.

8. A display device, characterized by comprising: It includes a plurality of displays as described in any one of claims 1-7, wherein the plurality of displays are spliced ​​together at least along the first direction, and adjacent displays have a seam area.

9. The display device according to claim 8, wherein The display screen has multiple light-emitting units, which are located on the light-incident side of the color resist layer and configured to provide a light source to the color resist layer; there is a one-to-one correspondence between the light-emitting units and the color resist units; In this embodiment, multiple light-emitting units in a display screen are configured to be controlled independently; two light-emitting units located on opposite sides of the seam area in the first direction and adjacent to the seam area are controlled jointly.

Images