CN112216219A - Pixel arrangement structure, display panel and display device - Google Patents
Pixel arrangement structure, display panel and display device Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/08—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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Abstract
The invention discloses a pixel arrangement structure, a display panel and a display device. The pixel arrangement structure includes: the pixel array comprises a plurality of repeating units distributed in an array, wherein the repeating units at least comprise a first pixel unit and a second pixel unit which are adjacently arranged in the row direction, and the first pixel unit and the second pixel unit respectively comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors; the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently arranged. By adopting the technical scheme in the embodiment of the invention, the problem of optical crosstalk between adjacent pixels can be solved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel arrangement structure, a display panel and a display device.
Background
The Micro-Light Emitting Diode (Micro-LED) display technology is a technology for realizing Light Emitting display by using a high-density integrated Micro-LED array as pixels on a back panel. At present, a scheme of combining a single blue light source and a quantum dot color conversion layer is mostly adopted in a Micro-LED colorization display scheme, namely, light with a specific wavelength is emitted under the excitation of a blue LED, and partial blue light is converted into red light and green light through the photoluminescence effect of nano fluorescent powder or a quantum dot material, so that colorized display is realized. However, because the nano fluorescent powder or the quantum dot material cannot completely convert the blue light into the red light and the green light, a certain proportion of the blue light is emitted, and the problem of optical crosstalk exists between adjacent pixels. The optical crosstalk problem is further exacerbated when high PPI displays are used due to the smaller pixel size.
Disclosure of Invention
The embodiment of the invention provides a pixel arrangement structure, a display panel and a display device, which can solve the problem of optical crosstalk between adjacent pixels.
In a first aspect, an embodiment of the present invention provides a pixel arrangement structure, including: the pixel array comprises a plurality of repeating units distributed in an array, wherein the repeating units at least comprise a first pixel unit and a second pixel unit which are adjacently arranged in the row direction, and the first pixel unit and the second pixel unit respectively comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors; the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently arranged.
In a possible implementation manner of the first aspect, the second sub-pixels, the third sub-pixels and the first sub-pixels in the first pixel unit are sequentially arranged in a row, and the first sub-pixels, the second sub-pixels and the third sub-pixels in the second pixel unit are sequentially arranged in a row; or the second sub-pixel, the third sub-pixel and the first sub-pixel in the first pixel unit are sequentially arranged in a row, and the first sub-pixel, the third sub-pixel and the second sub-pixel in the second pixel unit are sequentially arranged in a row.
In one possible implementation of the first aspect, the pixel arrangement is formed by translation of the repeating unit in a row direction and translation in a column direction.
In one possible implementation of the first aspect, the first sub-pixel is any one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
In a second aspect, an embodiment of the present invention provides a display panel, having the pixel arrangement structure as described above, including:
the driving backboard comprises a substrate and a driving circuit arranged on the substrate;
the light-emitting layer is arranged on the driving backboard and comprises micro light-emitting diodes distributed in an array;
the color film substrate is arranged corresponding to the driving back plate, one side of the color film substrate, facing the micro light-emitting diode, is provided with a light conversion unit and a barrier, adjacent light conversion units are mutually separated through the barrier, and the light conversion unit at least comprises a first primary color light conversion unit, a second primary color light conversion unit and a third primary color light conversion unit which are different in color;
the first sub-pixels in the first pixel unit and the second pixel unit which are adjacently arranged share the first primary color light conversion unit.
In one possible implementation of the second aspect, the area S of the first primary light conversion unit shared by the pixels satisfies the relation: a < S ≦ 2a, where a is the first predetermined area; the area S1 of the second primary light conversion unit and/or the third primary light conversion unit satisfies the relation: a < S1 < S.
In a possible implementation manner of the second aspect, the surface of the barrier facing the micro light emitting diode is flush with the light incident surface of the light conversion unit, or protrudes from the light incident surface of the light conversion unit.
In one possible embodiment of the second aspect, the micro light emitting diode is a blue micro light emitting diode, and the first primary color light conversion unit, the second primary color light conversion unit, and the third primary color light conversion unit are a red conversion unit, a green conversion unit, and a transparent unit, respectively; preferably, filter layers are respectively disposed corresponding to the red converting unit and the green converting unit, and the filter layers are located on the light emitting surface and the side wall of the corresponding primary color converting unit.
In one possible embodiment of the second aspect, the micro light emitting diode is an ultraviolet micro light emitting diode, and the first primary color light conversion unit, the second primary color light conversion unit, and the third primary color light conversion unit are a red conversion unit, a green conversion unit, and a blue conversion unit, respectively; preferably, filter layers are respectively arranged corresponding to the red conversion unit, the green conversion unit and the blue conversion unit, and the filter layers are positioned on the light-emitting surface and the side wall of the corresponding primary color conversion unit.
In a third aspect, an embodiment of the present invention provides a display device, including: a display panel as described above.
As described above, since the repeating unit in the pixel arrangement structure in the embodiment of the present invention includes at least the first pixel unit and the second pixel unit adjacently disposed in the row direction, the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently disposed, so that the first sub-pixels in the first pixel unit and the second pixel unit can pixel-share the first primary light conversion unit. Therefore, on the premise that the area of the pixel unit is fixed, the area of the primary light conversion unit shared by the pixels can be properly reduced relative to the total area of the two sub-pixel units, accordingly, the width of a barrier between the adjacent light conversion units is increased, the distance between emergent lights of different pixels is increased, and the problem of light crosstalk between the adjacent pixels can be reduced.
According to the embodiment of the invention, on the premise that the area of the pixel unit is fixed, the area of the light conversion unit shared by the pixels and the area of the light conversion unit corresponding to the second sub-pixel and/or the third sub-pixel which are not shared by the pixels can be properly increased relative to the area of the single sub-pixel unit, so that the light transmittance of the pixels can be improved on the premise of reducing the light crosstalk of adjacent pixels, and the display effect is further improved.
Drawings
The present invention will be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which like or similar reference characters designate like or similar features.
FIG. 1 is a schematic structural diagram of a Micro-LED display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a general pixel arrangement according to an embodiment of the present invention;
FIG. 3 is a schematic plane view of the light conversion units and the barriers corresponding to FIG. 2;
FIG. 4 is a schematic diagram of a pixel layout structure according to an embodiment of the present invention;
fig. 5 is a schematic view of a pixel arrangement structure according to another embodiment of the invention;
fig. 6 is a schematic plan view of a light conversion unit and barriers corresponding to fig. 5;
fig. 7 is a schematic view of a pixel arrangement structure according to another embodiment of the invention;
fig. 8 is a schematic plan view of a light conversion unit and barriers corresponding to fig. 7;
fig. 9 is a schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of a display panel according to another embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
10-driving the back plate; 20-micro light emitting diodes;
100. 201, 202, 203, 204, 205-repeat units;
2011. 2021, 2031, 2041, 2051-first pixel cell;
2012. 2022, 2042-second pixel cell; 30-a color film substrate;
40-a light conversion unit; 401 — a first primary light conversion unit;
402-a second primary light conversion unit; 403-a third primary light conversion unit;
50-a barrier; 60-a filter layer.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.
Fig. 1 is a schematic structural view of a Micro-LED display panel according to an embodiment of the present invention.
As shown in fig. 1, the display panel includes a driving backplane 10, a light emitting layer, and a color film substrate 30.
The driving backplate 10 includes a substrate and a driving circuit disposed on the substrate. The driving circuit is composed of devices such as thin film transistors, and the driving back plate 10 is also called an array substrate.
And the light-emitting layer is arranged on the driving backboard 10 and comprises micro light-emitting diodes 20 distributed in an array.
The color filter substrate 30 is disposed corresponding to the driving backplane 10, a light conversion unit 40 and a barrier 50 are disposed on one side of the color filter substrate 30 facing the micro light emitting diode 20, adjacent light conversion units 40 are separated from each other by the barrier 50, and the light conversion unit 40 at least includes a first primary light conversion unit 401, a second primary light conversion unit 402, and a third primary light conversion unit 403 with different colors. The positions of the first primary color light conversion unit 401, the second primary color light conversion unit 402, and the third primary color light conversion unit 403 are not sequentially defined here.
In a specific implementation, the light conversion unit 40 may have an inverted trapezoid structure to increase the light incidence rate.
In some embodiments, the micro-leds 20 may be blue micro-leds, which are capable of producing blue light. The first primary color light conversion unit 401, the second primary color light conversion unit 402, and the third primary color light conversion unit 403 are a red color conversion unit, a green color conversion unit, and a transparent unit, respectively.
Wherein the red conversion unit includes a photoluminescent material for generating red light, for example, a material formed by mixing a red quantum dot with a photoresist or a material formed by mixing a red organic photoluminescent material with a photoresist, for converting the emergent light of the micro light emitting diode 20 into red light. The green conversion unit includes a photoluminescent material for generating green light, for example, a material formed by mixing a green quantum dot with a photoresist or a material formed by mixing a green organic photoluminescent material photoresist, for converting the outgoing light of the micro light emitting diode 20 into green light. The photoresist is negative photoresist, and the quantum dot components can be inorganic nanoparticles such as ZnS, ZnO, CdS and InP.
It should be understood that the transparent unit does not need to convert the blue light emitted by the blue micro-light emitting diode, but directly transmits the blue light emitted by the blue micro-light emitting diode, so as to realize full-color display together with the red light and the green light. The transparent unit includes a transparent material, for example, a transparent photoresist, a transparent polymer (e.g., Poly Methyl Methacrylate (PMMA)), and the like.
In some embodiments, the micro light emitting diodes 20 may be ultraviolet micro light emitting diodes capable of generating ultraviolet light. The first primary color light conversion unit, the second primary color light conversion unit and the third primary color light conversion unit are respectively a red conversion unit, a green conversion unit and a blue unit. Wherein the blue conversion unit includes a photoluminescent material for generating blue light, for example, a material formed by mixing a blue quantum dot with a photoresist or a material formed by mixing a blue organic photoluminescent material with a photoresist, for converting the outgoing light of the micro light emitting diode 20 into blue light, thereby implementing full color display together with red light and green light.
Fig. 2 is a schematic diagram of a general pixel arrangement structure according to an embodiment of the present invention. Where X denotes the row direction and Y denotes the column direction.
As shown in fig. 2, the pixel arrangement structure includes: the pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors, and the positions of the first sub-pixel, the second sub-pixel and the third sub-pixel are not limited in sequence.
The three subpixels having different colors shown in fig. 2 are a red subpixel R, a green subpixel G, and a blue subpixel B in this order.
Fig. 3 is a schematic plan view of the light conversion units and the barriers corresponding to fig. 2.
As shown in fig. 3, the light conversion unit corresponding to the red sub-pixel R is a red conversion unit 40(R), the light conversion unit corresponding to the green sub-pixel G is a green conversion unit 40(G), and the light conversion unit corresponding to the blue sub-pixel B is a blue conversion unit (or transparent unit) 40 (B). The red conversion unit 40(R), the green conversion unit 40(G), and the blue conversion unit (or the transparent unit) 40(B) are separately provided by a barrier 50, and the barrier 50 may also be understood as a Black Matrix (BM) that does not transmit light.
The red conversion cell 40(R), the green conversion cell 40(G) and the blue conversion cell (or transparent cell) 40(B) shown in fig. 3 have the same width L1, and the barriers 50 between adjacent light conversion cells have the same width d 1.
At the time of high PPI display, on one hand, since the red conversion unit 40(R) and the green conversion unit 40(G) have a blue light leakage problem due to incomplete conversion, and on the other hand, since the pixel size is small, the size L1 of the red conversion unit 40(R) and the green conversion unit 40(G) is also small, so that the width d1 of the barrier 50 between adjacent light conversion units is also small, resulting in a further aggravated optical crosstalk problem between adjacent sub-pixels.
In view of this, an embodiment of the present invention provides a pixel arrangement structure, where the pixel structure includes a plurality of repeating units distributed in an array, and the repeating units include at least a first pixel unit and a second pixel unit adjacently disposed in a row direction. The first pixel unit and the second pixel unit respectively comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors, wherein the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently arranged.
The embodiment of the invention does not limit the position sequence of the first sub-pixel, the second sub-pixel and the third sub-pixel. The first sub-pixel may be any one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
For example, if the first sub-pixel is a B sub-pixel, the second sub-pixel is one of an R sub-pixel and a G sub-pixel, and the third sub-pixel is the other of the R sub-pixel and the G sub-pixel.
It should be noted that, in the pixel arrangement structure in the embodiment of the present invention, the repeating units are formed by translating along the row direction and translating along the column direction, and there is no misalignment between adjacent rows or columns.
The pixel arrangement structure in the embodiment of the present invention is described below with reference to fig. 4 and 5, taking the first sub-pixel as the B sub-pixel, the second sub-pixel as the R sub-pixel, and the third sub-pixel as the G sub-pixel as an example.
The repeating unit 201 shown in fig. 4 includes a first pixel unit 2011 and a second pixel unit 2012 adjacently disposed in the row direction. The R sub-pixels, the G sub-pixels, and the B sub-pixels in the first pixel unit 2011 are sequentially arranged in a row, and the B sub-pixels, the R sub-pixels, and the G sub-pixels in the second pixel unit 2012 are sequentially arranged in a row, that is, the B sub-pixels in the first pixel unit 2011 and the B sub-pixels in the second row of pixels 2012 are adjacently disposed.
In combination with the display panel structure in fig. 1, in a specific implementation, two adjacent B sub-pixels of the first pixel unit 2011 and the second pixel unit 2012 respectively belonging to the same repeating unit 201 may share one blue converting unit (or transparent unit) 40 (B).
The repeating unit 202 shown in fig. 5 includes a first pixel unit 2021 and a second pixel unit 2022 which are adjacently disposed in a row direction, the R sub-pixels, the G sub-pixels, and the B sub-pixels in the first pixel unit 2021 are sequentially arranged in one row, the B sub-pixels, the G sub-pixels, and the B sub-pixels in the second pixel unit 2022 are sequentially arranged in one row, that is, the B sub-pixels in the first pixel unit 2021 and the B sub-pixels in the second row pixel unit 2022 are adjacently disposed, and the R sub-pixels at the third position of the second pixel unit 2022 of the repeating unit 202 may be adjacently disposed adjacent to the R sub-pixels at the first position of the first pixel unit 2031 of the next repeating unit 203 adjacent in the row direction.
In conjunction with the display panel structure of fig. 1, when implemented, two adjacent B sub-pixels belonging to different pixel units of the same repeating unit 202 may share one blue conversion unit (or transparent unit) 40(B), and two R sub-pixels belonging to different pixel units 2022 and 2031 of adjacent repeating units 202 and 203 may share one red conversion unit 40 (R).
Fig. 5 is different from fig. 4 in that the R sub-pixel at the third position of the second pixel unit 2022 of the repeating unit 202 in fig. 5 may be disposed adjacent to the R sub-pixel at the first position of the first pixel unit 2031 of the next repeating unit 203 adjacent in the row direction.
Fig. 6 is a schematic plan view of a light conversion unit and barriers corresponding to fig. 5.
As can be seen from fig. 6, the technical solution of making two adjacent B sub-pixels in different pixel units share one blue conversion unit (or transparent unit) 40(B) corresponds to the Micro-LED display panel structure, that is, the barrier 50 between the light conversion units corresponding to the two adjacent B sub-pixels is eliminated, so that the light generated by the Micro light emitting diodes 20 corresponding to the two B sub-pixels can exit from the blue conversion unit (or transparent unit) 40(B) shared by the pixels.
Similarly, the technical solution of sharing one red conversion unit 40(R) by two R sub-pixels belonging to different pixel units of adjacent repeating units corresponds to the Micro-LED display panel structure, that is, the barrier 50 between the light conversion units corresponding to the two adjacent R sub-pixels is eliminated, so that the light generated by the Micro-LEDs 20 corresponding to the two R sub-pixels can exit from the red conversion unit 40(R) shared by the pixels.
Since the blue converting unit (or the transparent unit) 40(B) and the red converting unit 40(R) are shared by two sub-pixels belonging to different pixel units, the area L2 of the blue converting unit (or the transparent unit) 40(B) and the area L3 of the red converting unit 40(R) shared by the pixels can be properly reduced relative to the total area of the two sub-pixel units under the premise that the area of the pixel units is fixed, accordingly, the widths (d2, d3 and d4) of the barriers 50 between the adjacent light converting units can be properly increased compared with the original width d1, and here, the width of the barriers 50 between the adjacent light converting units is increased, and the distance between the emergent lights of different pixels is increased accordingly, so that the problem of optical crosstalk between the adjacent pixels can be reduced.
In addition, on the premise that the area of the pixel unit is fixed, since the area L2 of the blue conversion unit (or the transparent unit) 40(B) and the area L3 of the red conversion unit 40(R) shared by the pixels, and the area L3 of the green conversion unit 40(G) not shared by the pixels can be increased appropriately relative to the area of a single sub-pixel unit, the light transmittance of the pixel can be improved on the premise of reducing the crosstalk of light of adjacent pixels, and the display effect can be improved.
As described above, since the repeating unit in the pixel arrangement structure in the embodiment of the present invention includes at least the first pixel unit and the second pixel unit adjacently disposed in the row direction, the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently disposed, so that the first sub-pixels in the first pixel unit and the second pixel unit can pixel-share the first primary light conversion unit. Thus, on the premise that the area of the pixel unit is fixed, the area of the primary light conversion unit shared by the pixels can be properly reduced relative to the total area of the two sub-pixel units, accordingly, the width of the barrier 50 between the adjacent light conversion units is increased, the distance between the emergent lights of different pixels is increased, and the problem of optical crosstalk between the adjacent pixels can be reduced.
According to the embodiment of the invention, on the premise that the area of the pixel unit is fixed, the area of the light conversion unit shared by the pixels and the area of the light conversion unit corresponding to the second sub-pixel and/or the third sub-pixel which are not shared by the pixels can be properly increased relative to the area of the single sub-pixel unit, so that the light transmittance of the pixels can be improved on the premise of reducing the light crosstalk of adjacent pixels, and the display effect is further improved.
Fig. 7 is a schematic view of a pixel arrangement structure according to another embodiment of the invention.
Fig. 7 is different from fig. 5 in that one sub-pixel in fig. 7 is an R sub-pixel, the second sub-pixel is a B sub-pixel, and the third sub-pixel is a G sub-pixel.
The repeating unit 204 shown in fig. 7 includes a first pixel unit 2041 and a second pixel unit 2042 which are adjacently disposed in the row direction, the R sub-pixel, the B sub-pixel, and the G sub-pixel in the first pixel unit 2041 are sequentially arranged in one row, the G sub-pixel, the B sub-pixel, and the R sub-pixel in the second pixel unit 2042 are sequentially arranged in one row, that is, the G sub-pixel in the first pixel unit 2041 and the G sub-pixel in the second row pixel 2042 are adjacently disposed, and the R sub-pixel at the third position of the second pixel unit 2042 of the repeating unit 204 may be adjacently disposed adjacent to the R sub-pixel at the first position of the first pixel unit 2051 of the next repeating unit 205 in the row direction.
In combination with the display panel structure shown in fig. 1, in practical implementation, two adjacent G sub-pixels belonging to different pixel units 2041 and 2042 of the same repeating unit 204 may share one green conversion unit 40(G), and two R sub-pixels belonging to different pixel units 2042 and 2051 of the adjacent repeating units 204 and 205 may share one red conversion unit 40 (R).
Fig. 8 is a schematic plan view of the light conversion unit and the barrier corresponding to fig. 7.
As can be seen from fig. 8, the technical solution of making two adjacent G sub-pixels in different pixel units share one green conversion unit 40(G) corresponds to the Micro-LED display panel structure, that is, the barrier 50 between the light conversion units corresponding to the two adjacent G sub-pixels is eliminated, so that the light generated by the Micro light emitting diodes 20 corresponding to the two G sub-pixels can exit from the green conversion unit 40(G) shared by the pixels.
Similarly, the technical solution of sharing one red conversion unit 40(R) by two R sub-pixels belonging to different pixel units of adjacent repeating units corresponds to the Micro-LED display panel structure, that is, the barrier 50 between the light conversion units corresponding to the two adjacent R sub-pixels is eliminated, so that the light generated by the Micro-LEDs 20 corresponding to the two R sub-pixels can exit from the red conversion unit 40(R) shared by the pixels.
In some embodiments, the repeating unit in the pixel arrangement structure in the embodiments of the present invention may further include 2 or more pixel units in the row direction as long as 2 or more pixel units satisfy: "there are a first pixel unit and a second pixel unit adjacently arranged", and the first pixel unit and the second pixel unit adjacently arranged satisfy: the first pixel unit and the second pixel unit respectively comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors, wherein the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are arranged adjacently. The first sub-pixel may be any one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
That is to say, there should be at least two adjacent sub-pixels with the same color in the repeating unit, and the two sub-pixels belong to two adjacent pixel units, so that the light transmittance of the pixel can be improved on the premise of reducing the optical crosstalk of the adjacent pixels by sharing one light conversion unit, and the effect of the display effect can be further improved.
Fig. 9 is a schematic structural diagram of a display panel according to an embodiment of the present invention, which has the pixel arrangement structure described above. Fig. 9 is different from fig. 8 in that the adjacent sub-pixels with the same color in the first pixel unit and the second pixel unit which are adjacently arranged share one light conversion unit 401 and one light conversion unit 403 (see fig. 5 and 6), that is, the light generated by the micro-leds 20 corresponding to the adjacent sub-pixels with the same color in the first pixel unit and the second pixel unit which are adjacently arranged exits from the light conversion unit 401 or the light conversion unit 403.
The adjacent sub-pixels with the same color may be any one of a red sub-pixel, a green sub-pixel and a blue sub-pixel, the light conversion unit corresponding to the adjacent red sub-pixel is a red conversion unit, the light conversion unit corresponding to the adjacent green sub-pixel is a green conversion unit, and the light conversion unit corresponding to the adjacent blue sub-pixel is a blue conversion unit or a transparent unit.
According to the embodiment of the present invention, by sharing the light conversion unit 401 and the light conversion unit 403 with the sub-pixels of the same color in the first pixel unit and the second pixel unit, the areas of the light conversion unit 401 and the light conversion unit 403 shared by the pixels can be appropriately reduced relative to the total area of the two sub-pixel units on the premise that the area of the pixel units is fixed, and accordingly, the width of the barrier 50 between the adjacent light conversion units and the distance between the emitted lights of different pixels can be appropriately increased, so that the optical crosstalk between the adjacent pixels can be reduced.
Further, on the premise that the area of the pixel unit is fixed, the areas of the light conversion units 401 and 403 shared by the pixels relative to the area of a single sub-pixel unit and the area of the light conversion unit 402 not shared by the pixels relative to the area of a single sub-pixel unit can be appropriately increased, so that the light transmittance of the pixels can be improved on the premise that the optical crosstalk of adjacent pixels is reduced, and the display effect is improved.
In the example of fig. 9, the pitch of the micro light emitting diode 20 array is adjusted to match the area of the light conversion unit 40 shared by the pixels, but those skilled in the art may adjust only the area of the light conversion unit without adjusting the pitch of the micro light emitting diode 20 array, and the present invention is not limited thereto.
In some embodiments, in order to allow the size of the barriers 50 between adjacent pixels to be reasonably designed while simultaneously considering the problems of high light transmittance and low optical crosstalk, the area S of the light conversion unit 403 shared by the pixels satisfies the relation: a < S ≦ 2a, where a is the first predetermined area, and assuming that the areas of the light conversion units are equal before the present application, a can also be understood as the initial design area of a single light conversion unit. The area S1 of the light conversion unit not shared by the pixels satisfies the relation: a < S1 < S.
In some embodiments, referring to fig. 9, the surface of the barrier 50 facing the micro light emitting diode 20 may be flush with the light incident surface of the light conversion unit 40 or protrude from the light incident surface of the light conversion unit 40. If the light incident surface of the light conversion unit 40 protrudes from the barrier 50, the light converted by the light conversion unit 40 easily exits from the sidewall of the light conversion unit 40 and enters the adjacent light conversion unit 40, thereby causing crosstalk between adjacent pixels. By making the surface of the barrier 50 facing the micro light emitting diode 20 flush with the light incident surface of the light conversion unit 40 or protruding from the light incident surface of the light conversion unit 40, the light converted by the light conversion unit 40 can be prevented from entering the adjacent light conversion unit 40.
In some embodiments, referring to fig. 10, a filter layer 60 is disposed corresponding to each conversion unit 40, and the filter layer 60 is located on the light emitting surface and the sidewall of the corresponding light conversion unit 40, so that the light of the corresponding color is completely transmitted and the light of the other colors is completely absorbed and/or reflected. It will be appreciated that filter layer 60 need not be provided for a transparent unit.
The embodiment of the invention also provides a display device, which comprises the display panel, and the display device can be applied to any product or part with a display function, such as virtual reality equipment, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a wearable watch, an internet of things node and the like. Since the principle of the display device to solve the problem is similar to that of the display panel, the display device can be implemented by the display panel, and repeated descriptions are omitted.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the device embodiments, reference may be made to the description of the method embodiments in the relevant part. Embodiments of the invention are not limited to the specific steps and structures described above and shown in the drawings. Those skilled in the art may make various changes, modifications and additions to, or change the order between the steps, after appreciating the spirit of the embodiments of the invention. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of an embodiment of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
Embodiments of the present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in the specific embodiments may be modified without departing from the basic spirit of the embodiments of the present invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A pixel arrangement, comprising: the pixel array comprises a plurality of repeating units distributed in an array, wherein each repeating unit at least comprises a first pixel unit and a second pixel unit which are adjacently arranged in the row direction, and each first pixel unit and each second pixel unit respectively comprise a first sub-pixel, a second sub-pixel and a third sub-pixel which are distributed in the row direction and have different colors;
wherein the first sub-pixel in the first pixel unit and the first sub-pixel in the second pixel unit are adjacently arranged.
2. A pixel arrangement according to claim 1,
the second sub-pixels, the third sub-pixels and the first sub-pixels in the first pixel unit are sequentially arranged in a row, and the first sub-pixels, the second sub-pixels and the third sub-pixels in the second pixel unit are sequentially arranged in a row;
alternatively, the first and second electrodes may be,
the second sub-pixels, the third sub-pixels and the first sub-pixels in the first pixel unit are sequentially arranged in a row, and the first sub-pixels, the third sub-pixels and the second sub-pixels in the second pixel unit are sequentially arranged in a row.
3. A pixel arrangement according to claim 1, wherein the pixel arrangement is formed by translation of the repeating unit in a row direction and translation in a column direction.
4. A pixel arrangement according to any of claims 1-3, wherein the first sub-pixel is any of a red sub-pixel, a green sub-pixel and a blue sub-pixel.
5. A display panel having a pixel arrangement according to any one of claims 1 to 4, the display panel comprising:
the driving back plate comprises a substrate base plate and a driving circuit arranged on the substrate base plate;
the light-emitting layer is arranged on the driving back plate and comprises micro light-emitting diodes distributed in an array;
the color film substrate is arranged corresponding to the driving back plate, one side of the color film substrate, which faces the micro light-emitting diode, is provided with a light conversion unit and a barrier, the adjacent light conversion units are mutually separated through the barrier, and the light conversion unit at least comprises a first primary color light conversion unit, a second primary color light conversion unit and a third primary color light conversion unit which are different in color;
wherein the first sub-pixels in the first pixel unit and the second pixel unit which are adjacently arranged share the first primary color light conversion unit.
6. The display panel according to claim 5,
the area S of the first primary color light conversion unit shared by the pixels satisfies the relation: a < S ≦ 2a, where a is the first predetermined area;
an area S1 of the second primary light conversion unit and/or the third primary light conversion unit satisfies a relation: a < S1 < S.
7. The display panel according to claim 5,
the surface of the barrier facing the micro light emitting diode is flush with the light incident surface of the light conversion unit or protrudes out of the light incident surface of the light conversion unit.
8. The display panel according to any one of claims 5 to 7,
the micro light emitting diode is a blue micro light emitting diode, and the first primary color light conversion unit, the second primary color light conversion unit and the third primary color light conversion unit are respectively a red conversion unit, a green conversion unit and a transparent unit;
preferably, filter layers are respectively arranged corresponding to the red conversion unit and the green conversion unit, and the filter layers are located on the light emitting surface and the side wall of the corresponding primary color conversion unit.
9. The display panel according to any one of claims 5 to 7,
the micro light emitting diode is an ultraviolet micro light emitting diode, and the first primary color light conversion unit, the second primary color light conversion unit and the third primary color light conversion unit are respectively a red conversion unit, a green conversion unit and a blue conversion unit;
preferably, filter layers are respectively disposed corresponding to the red conversion unit, the green conversion unit and the blue conversion unit, and the filter layers are located on the light emitting surface and the side wall of the corresponding primary color conversion unit.
10. A display device, comprising: a display panel as claimed in any one of claims 5-9.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613769.3A CN112216219A (en) | 2019-07-09 | 2019-07-09 | Pixel arrangement structure, display panel and display device |
| PCT/CN2020/080037 WO2021004088A1 (en) | 2019-07-09 | 2020-03-18 | Pixel arrangement structure, display panel, and display device |
| KR1020227001336A KR20220012997A (en) | 2019-07-09 | 2020-03-18 | Pixel arrangement structure, display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910613769.3A CN112216219A (en) | 2019-07-09 | 2019-07-09 | Pixel arrangement structure, display panel and display device |
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| CN112216219A true CN112216219A (en) | 2021-01-12 |
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| CN201910613769.3A Pending CN112216219A (en) | 2019-07-09 | 2019-07-09 | Pixel arrangement structure, display panel and display device |
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| Country | Link |
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| KR (1) | KR20220012997A (en) |
| CN (1) | CN112216219A (en) |
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| WO2022267054A1 (en) * | 2021-06-25 | 2022-12-29 | 京东方科技集团股份有限公司 | Display substrate, display panel, and display apparatus |
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| KR20220012997A (en) | 2022-02-04 |
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