CN113130619A - Display substrate, display panel and display device - Google Patents
Display substrate, display panel and display device Download PDFInfo
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- CN113130619A CN113130619A CN202110599971.2A CN202110599971A CN113130619A CN 113130619 A CN113130619 A CN 113130619A CN 202110599971 A CN202110599971 A CN 202110599971A CN 113130619 A CN113130619 A CN 113130619A
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
Abstract
The invention discloses a display substrate, a display panel and a display device, wherein the display substrate of one embodiment comprises pixel units which are arranged in an array mode, each pixel unit comprises a first pixel unit and a second pixel unit, each first pixel unit comprises at least one first sub-pixel unit, and each first sub-pixel unit comprises first red sub-pixels, first green sub-pixels and first blue sub-pixels which are arranged at intervals along a first direction; the second pixel unit comprises at least one second sub-pixel unit, and each second sub-pixel unit comprises a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel which are arranged at intervals along a second direction; the extending direction of each sub-pixel in the second sub-pixel unit is set to be intersected with the extending direction of each sub-pixel with the same color in the first sub-pixel unit so as to solve the problem of color separation of the display panel in the prior art under the irradiation of ambient light in a dark state, and effectively improve the dark state display effect of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display substrate, a display panel and a display device.
Background
Organic Light Emitting Diode (OLED) Display devices are one of the hot spots in the research field of flat panel displays, and compared with Liquid Crystal displays, OLED Display devices have the advantages of low energy consumption, low production cost, self-luminescence, wide viewing angle, fast response speed, etc. at present, OLED Display devices have begun to replace the conventional Liquid Crystal Display (LCD) in the flat panel Display fields of mobile phones, PDAs, digital cameras, etc.
However, in a dark environment of the conventional display device, the screen has a problem of color separation under the irradiation of the point light source.
Disclosure of Invention
In order to solve at least one of the above problems, a first embodiment of the present invention provides a display substrate including pixel units arranged in an array, the pixel units including a first pixel unit and a second pixel unit, wherein
The first pixel unit comprises at least one first sub-pixel unit, and each first sub-pixel unit comprises a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel which are arranged at intervals along a first direction;
the second pixel unit comprises at least one second sub-pixel unit, and each second sub-pixel unit comprises a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel which are arranged at intervals along a second direction;
wherein the content of the first and second substances,
the extending direction of the first red sub-pixel is intersected with the extending direction of the second red sub-pixel;
the extending direction of the first green sub-pixel is crossed with the extending direction of the second green sub-pixel;
the extending direction of the first blue sub-pixel intersects with the extending direction of the second blue sub-pixel.
Further, the extending direction of the first red sub-pixel is orthogonal to the extending direction of the second red sub-pixel;
the extending direction of the first green sub-pixel is orthogonal to the extending direction of the second green sub-pixel;
the extending direction of the first blue sub-pixel is orthogonal to the extending direction of the second blue sub-pixel.
Further, the second red sub-pixel is close to the first sub-pixel unit relative to the second green sub-pixel and the second blue sub-pixel; or
The second blue sub-pixel is adjacent to the first sub-pixel unit with respect to the second green sub-pixel and the second red sub-pixel.
Further, the first pixel unit comprises two first sub-pixel units, and the second pixel unit comprises two second sub-pixel units.
Further, the first red subpixel and the second red subpixel comprise a first preset pattern of hexagons;
the first green sub-pixel and the second green sub-pixel comprise pentagons of a second preset pattern;
the first blue subpixel and the second blue subpixel comprise hexagons of a third preset pattern;
the area of the first green sub-pixel is smaller than that of the first red sub-pixel, and the area of the first red sub-pixel is smaller than that of the first blue sub-pixel;
the area of the second green sub-pixel is smaller than the area of the second red sub-pixel, and the area of the second red sub-pixel is smaller than the area of the second blue sub-pixel.
Further, the first sub-pixel unit further comprises a first white sub-pixel, and the area of the first white sub-pixel is greater than or equal to the area of the first red pixel;
the second sub-pixel unit further comprises a second white sub-pixel, and the area of the second white sub-pixel is larger than or equal to the area of the second red pixel.
Further, the pixel units arranged in the array are arranged along a preset direction.
Further, the preset direction includes a first direction and/or a second direction.
Further, the predetermined direction is at a predetermined angle to the first and/or second direction.
A second embodiment of the present invention provides a display panel, comprising the display substrate and a color film layer, wherein,
the color film layer comprises a color film surrounded by a black matrix, and the shape and the arrangement of the color film are set according to the shape and the arrangement of each sub-pixel of the display substrate.
A third embodiment of the invention provides a display device, including the display panel.
The invention has the following beneficial effects:
the invention provides a display substrate aiming at the existing problems, the embodiment of the invention sets a first pixel unit and a second pixel unit which are arranged in an array mode on the display substrate, the first pixel unit comprises at least one first sub-pixel unit, the second pixel unit comprises at least one second sub-pixel unit, and the extending direction of each sub-pixel in the second sub-pixel unit is intersected with the extending direction of each sub-pixel with the same color in the first sub-pixel unit, so that the problem of color separation under the condition of ambient light irradiation when the display panel is in a dark state in the prior art is solved, the dark state display effect of the display panel is effectively improved, and the display substrate has a wide application prospect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIGS. 1a-1b illustrate a color separation phenomenon occurring in a dark state environment of a prior art display panel;
fig. 2 shows a schematic diagram of a horseshoe-shaped gamut map in one specific example of the invention;
FIG. 3 shows a schematic view of the pixel arrangement of one embodiment of the present invention;
FIG. 4 is a schematic diagram of a screen reflection of a display panel in a dark state environment, in which an embodiment of the pixel arrangement structure of the invention is applied;
FIG. 5 shows a schematic diagram of a pixel arrangement according to an alternative embodiment of the invention;
FIG. 6 shows a schematic diagram of a pixel arrangement according to an alternative embodiment of the invention;
FIG. 7 shows a schematic diagram of a pixel arrangement according to an alternative embodiment of the invention;
FIG. 8 shows a schematic diagram of a pixel arrangement according to an alternative embodiment of the invention;
fig. 9 is a schematic view showing a structure of a display panel according to a specific example of the present invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The advantage of OLED display devices over LCD display devices is the significant improvement in bending and folding capabilities under all solid state display. In order to further improve the product performance of the OLED display panel, in the prior art, a color film layer (CF) is formed on an Encapsulation layer (TFE) of the top-emitting OLED device by using a COE technology (CF on Encapsulation) through a photolithography process, and the structure does not need a Polarizer (POL), so that the display brightness can be effectively improved, the overall thickness can be reduced, and the display color gamut can be improved.
However, as shown in fig. 1a, when the display panel with the COE structure is in a dark state, the color separation phenomenon of the screen is obvious under the irradiation of an external light source. In the prior art, the problem is improved by doping scattering particles in the coating paste OC, and the color separation phenomenon formed by the scheme is shown in fig. 1b, and as can be seen from fig. 1b, the color separation phenomenon is slightly improved.
Therefore, embodiments of the present invention provide a display substrate, a display panel and a display device to solve the above problems.
As shown in FIG. 1a, the first direction is the X direction of the figure, and the second direction is the Y direction of the figure. As can be seen from the color separation image of the conventional display panel in fig. 1a, the color separation phenomenon that can be observed by human eyes is specifically: shown as green light 11 'in the Y direction and pink light 12' in the X direction.
Further, the inventor found from the horseshoe-shaped color gamut diagram shown in fig. 2 that the color gamut distribution of the horseshoe-shaped color gamut diagram is consistent with the color separation phenomenon of the display panel in the dark state in the prior art, in which the greenish color patches form green regions in the Y direction and the pink color patches form pink regions in the X direction. Furthermore, the middle part between the green area and the pink area is a white area.
Based on the above findings, a first embodiment of the present invention provides a display substrate, fig. 3 shows a schematic layout of pixel units in a plan view of the display substrate, the display substrate includes pixel units arranged in an array,
the pixel unit comprises a first pixel unit and a second pixel unit, wherein
The first pixel unit comprises at least one first sub-pixel unit 1, wherein each first sub-pixel unit 1 comprises a first red sub-pixel 11, a first green sub-pixel 12 and a first blue sub-pixel 13 which are arranged at intervals along a first direction;
the second pixel unit comprises at least one second sub-pixel unit 2, each second sub-pixel unit comprises a second red sub-pixel 21, a second green sub-pixel 22 and a second blue sub-pixel 23 which are arranged at intervals along the second direction; wherein the content of the first and second substances,
the extending direction Y 'of the first red sub-pixel 11 intersects the extending direction X' of the second red sub-pixel 21;
the extending direction Y 'of the first green sub-pixel 12 intersects the extending direction X' of the second green sub-pixel 22;
the extending direction Y 'of the first blue sub-pixel 13 intersects the extending direction X' of the second blue sub-pixel 23.
According to the embodiment of the invention, the first pixel unit and the second pixel unit which are arranged in an array mode are arranged on the display substrate, the first pixel unit comprises at least one first sub-pixel unit, the second pixel unit comprises at least one second sub-pixel unit, and the extending direction of each sub-pixel in the second sub-pixel unit is intersected with the extending direction of each sub-pixel with the same color in the first sub-pixel unit, so that the problem of color separation under the irradiation of ambient light when the display panel is in a dark state in the prior art is solved, the dark state display effect of the display panel is effectively improved, and the display panel has a wide application prospect.
In an alternative embodiment, the pixel units arranged in the array are arranged along a preset direction. In an alternative embodiment, the predetermined direction includes a first direction and/or a second direction. As shown in fig. 3, the predetermined direction is a first direction X, a second direction Y, or a first direction X and a second direction Y, and the pixel units (including one first sub-pixel unit 1 of the first pixel unit and one second sub-pixel unit 2 of the second pixel unit) are arranged in an array in the first direction X, the second direction Y, or the first direction and the second direction as a whole.
In this embodiment, based on the arrangement of the embodiment of the present invention, when the display substrate is in a dark state, the first sub-pixel unit can reflect the first light in response to the ambient light; the second sub-pixel unit can respond to when the display substrate is in a dark state that the ambient light reflects the second light, the color of the first light appearing in the first direction and the second direction respectively forms white balance with the color of the second light appearing in the first direction and the second direction, so that the problem of color separation existing under the irradiation of the ambient light when the display panel is in the dark state in the prior art is solved, the dark state display effect of the display panel is effectively improved, and the display panel has a wide application prospect.
In an alternative embodiment, as shown in fig. 3, the extending direction Y 'of the first red sub-pixel 11 is orthogonal to the extending direction X' of the second red sub-pixel 21;
the extending direction Y 'of the first green sub-pixel 12 is orthogonal to the extending direction X' of the second green sub-pixel 22;
the extending direction Y 'of the first blue sub-pixel 13 is orthogonal to the extending direction X' of the second blue sub-pixel 23.
As shown in fig. 3, the extending direction of the first red sub-pixel 11, the first green sub-pixel 12 and the first blue sub-pixel 13 in the first sub-pixel unit is the direction shown in the figure Y'; the extending direction of the second red sub-pixel 21, the second green sub-pixel 22 and the second blue sub-pixel 23 in the second pixel unit is the direction X' shown in the figure. As can be seen from fig. 3, the extending direction of the first red sub-pixel 11 is perpendicular to the extending direction of the second red sub-pixel 21, the extending direction of the first green sub-pixel 12 is perpendicular to the extending direction of the second green sub-pixel 22, and the extending direction of the first blue sub-pixel 13 is perpendicular to the extending direction of the second blue sub-pixel 23.
Under the arrangement structure, when the display panel is in a lighting state, the first pixel unit emits display light through the first red sub-pixel, the first green sub-pixel and the first blue sub-pixel, and the second pixel unit emits display light through the second red sub-pixel, the second green sub-pixel and the second blue sub-pixel. When the display panel is in a dark state, the first pixel unit reflects the first light in response to the ambient light, the second pixel unit reflects the second light in response to the ambient light, and the first light and the second light respectively form white balance in the first direction and the second direction, so that the problem of color separation of the display panel in the prior art is effectively solved.
Under the arrangement structure, when the display substrate is in a dark state, the first pixel unit reflects first light in response to ambient light, and the first light is displayed as green along the Y direction and pink along the X direction in human eyes. The second pixel cell reflects a second light in response to the ambient light, the second light being displayed in human eyes as pink in the Y direction and green in the X direction.
In one specific example, based on the horseshoe-shaped color gamut diagram of fig. 2, the center points of the green and pink light rays are white, and therefore, in combination with the color separation phenomenon in the prior art, the pink color of the first light and the green color of the second light in the first direction can achieve white balance, the green color of the first light and the pink color of the second light in the second direction can achieve white balance, based on this arrangement, therefore, embodiments of the present invention utilize different colors displayed in two directions by the first light, and different colors displayed in two directions by the second light, according to the color gamut distribution of green and pink colors in the color gamut diagram, the first color and the second color in the second direction are balanced, and the first light and the second light in the second direction and the first direction can be white balanced, so that the color separation problem existing when the display device is in a dark state is effectively improved.
Fig. 4 shows a schematic screen reflection diagram of a display device using the display substrate according to an embodiment of the present invention in a dark state environment, and as can be seen from fig. 4, the color separation phenomenon in the embodiment of the present invention is greatly improved, and a good screen-off effect is achieved.
In an alternative embodiment, as shown in fig. 3, the second red sub-pixel 21 is close to the first sub-pixel unit 1 with respect to the second green sub-pixel 22 and the second blue sub-pixel 23. In this embodiment, the extending direction of each sub-pixel in the first sub-pixel unit is perpendicular to the extending direction of each sub-pixel with the same color in the second pixel unit, that is, the first sub-pixel unit 1 is sequentially arranged from left to right in the X direction as a first red sub-pixel 11, a first green sub-pixel 12 and a first blue sub-pixel 13; the second sub-pixel units 2 are sequentially arranged in the Y direction from top to bottom as a second red sub-pixel 21, a second green sub-pixel 22 and a second blue sub-pixel 23.
In the embodiment of the invention, the distance between the bright red sub-pixels in the two sub-pixel units is short, so that the display device has a good display effect while ensuring a good screen-off effect. Under the state, on the basis of effectively improving the color separation problem of the display device, a more gorgeous display effect can be realized.
In another alternative embodiment, as shown in fig. 5, the second blue sub-pixel 23 is located close to the first sub-pixel unit 1 with respect to the second green sub-pixel 22 and the second red sub-pixel 21.
In this embodiment, the pixel units are arranged in an array in two directions to realize normal display in a bright state, with the preset arrangement direction as the first direction and the second direction. The extending direction of each sub-pixel in the first sub-pixel unit 1 is still perpendicular to the extending direction of each sub-pixel with the same color in the second pixel unit, that is, the first sub-pixel unit 1 is sequentially arranged from left to right in the X direction as a first red sub-pixel 11, a first green sub-pixel 12 and a first blue sub-pixel 13; the second blue sub-pixel 23, the second green sub-pixel 22 and the second red sub-pixel 21 are sequentially arranged from top to bottom in the Y direction of the second sub-pixel unit 2, and the arrangement of the first sub-pixel unit and the second sub-pixel unit can also effectively improve the color separation problem of the display device in a dark state.
In an alternative embodiment, as shown in fig. 3 and 5, the first red subpixel 11 and the second red subpixel 21 include a first predetermined pattern of hexagons;
the first green sub-pixel 12 and the second green sub-pixel 22 comprise a second predetermined pattern of pentagons;
the first blue subpixel 13 and the second blue subpixel 23 include a third predetermined pattern of hexagons.
In one specific example, as shown in fig. 5, the second green sub-pixel 22 includes two pentagonal sub-pixels having a smaller area. In this embodiment, the sub-pixels may be regular patterns, so as to save the process flow and facilitate the manufacturing.
In an alternative embodiment, the area of the first green sub-pixel 12 is smaller than the area of the first red sub-pixel 11, and the area of the first red sub-pixel 11 is smaller than the area of the first blue sub-pixel 13; the area of the second green sub-pixel 22 is smaller than the area of the second red sub-pixel 21, and the area of the second red sub-pixel 21 is smaller than the area of the second blue sub-pixel 23. That is, in the first and second sub-pixel units, the area of the green sub-pixel is smaller than that of the red sub-pixel and is smaller than that of the blue sub-pixel.
In the present embodiment, considering that human eyes are sensitive to green light and the luminance of a green pixel is high, the area of a green sub-pixel is set to be minimum; meanwhile, the attenuation speed of the blue sub-pixel is high, so that the area of the blue sub-pixel is set to be the maximum to reduce the attenuation speed of the blue sub-pixel; on the basis of improving the color separation problem of the existing display device, the problem that the brightness attenuation under the existing display substrate is too fast is further improved, and the display performance of the display device applying the arrangement structure is effectively improved.
In an optional embodiment, the first sub-pixel unit further includes a first white sub-pixel, and an area of the first white sub-pixel is greater than or equal to an area of the first red pixel;
the second sub-pixel unit further comprises a second white sub-pixel, and the area of the second white sub-pixel is larger than or equal to the area of the second red pixel.
In an optional embodiment, the first sub-pixel unit further includes a first white sub-pixel, and an area of the first white sub-pixel is greater than or equal to an area of the first blue sub-pixel; the second sub-pixel unit further comprises a second white sub-pixel, and the area of the second white sub-pixel is larger than or equal to that of the second blue sub-pixel.
In a specific example, the first sub-pixel unit and the second sub-pixel unit include sub-pixels of four colors, and in a specific example, on the basis of the foregoing embodiment, the area of the white sub-pixel is 2 times that of the blue sub-pixel, so as to ensure the display effect of the large-size display substrate. According to the embodiment of the invention, the sub-pixels of the four colors of red, green, blue and white are arranged, so that the display performance of the display device is further improved on the basis of improving the color separation, and the good display effect of the large-size display device is realized.
In an alternative embodiment, in the Y direction, the first pixel unit includes one first sub-pixel unit 1, the second pixel unit includes one second sub-pixel unit 2, and the first sub-pixel unit 1 and the second sub-pixel unit 2 are alternately arranged. As shown in fig. 3, the first sub-pixel units 1 and the second sub-pixel units 2 are alternately arranged in the Y direction, and a row of the first sub-pixel units corresponds to a row of the second sub-pixel units, so that the color separation is effectively improved, and the display effect is good.
In another alternative embodiment, as shown in fig. 6, the first pixel unit includes two first sub-pixel units 1, and the second pixel unit includes two second sub-pixel units 2.
In this embodiment, each first sub-pixel unit includes a first red sub-pixel 11, a first green sub-pixel 12, and a first blue sub-pixel 13 sequentially arranged along a first direction. Each second sub-pixel unit 2 includes a second red sub-pixel 21, a second green sub-pixel 22 and a second blue sub-pixel 23 sequentially arranged along a second direction.
Each first sub-pixel unit is sequentially arranged along a first direction X and is arranged at intervals with the second sub-pixel units along a second direction Y. That is, as shown in fig. 6, in the direction from top to bottom in the Y direction, the first pixel unit includes first sub-pixel units arranged in a first row and a second row, and the second pixel unit includes second sub-pixel units arranged in a third row and a fourth row, that is, two rows of first sub-pixel units 1 and two rows of second sub-pixel units 2 are alternately arranged in the Y direction, which can also solve the problem of color separation in the dark state of the display device in the prior art.
In another specific example, as shown in fig. 7, in the direction from top to bottom in the Y direction, the pixel units arranged in an array include two structures, a pixel unit of a first structure formed by the first sub-pixel unit 1 and the second sub-pixel unit 2 in which the first red sub-pixel 11 and the second red sub-pixel 21 are relatively close to each other, and a pixel unit of a second structure formed by the first sub-pixel unit 1 and the second sub-pixel unit 2 in which the first red sub-pixel 11 and the second red sub-pixel 21 are relatively far from each other. The two structures are alternately arranged in the Y direction.
Specifically, the first sub-pixel unit located above in the Y direction is in the first row, that is, the first structure includes: the first row is a first sub-pixel unit 1, the second row is a second sub-pixel unit 2, the second red sub-pixel 21 is close to the first pixel unit 1 relative to the second green sub-pixel 22 and the second blue sub-pixel 23, and the first sub-pixel unit 1 in the first row and the second sub-pixel unit 1 in the second row realize white balance according to the color gamut graph in a complementary mode; the second structure includes: the third row is a first sub-pixel unit 1, the fourth row is a second sub-pixel unit 2, wherein the second blue sub-pixel 23 is close to the first pixel unit 1 relative to the second green sub-pixel 22 and the second red sub-pixel 21, the third row of the first sub-pixel unit 1 and the fourth row of the second sub-pixel unit 2 complement each other according to a color gamut graph to realize white balance, and the color separation problem existing in the dark state of the display device in the prior art can be solved under the condition of realizing good bright state display of the display device.
Based on the above arrangement, the embodiment of the present invention does not limit the specific implementation manner of the alternating arrangement of the first pixel unit and the second pixel unit, and a person skilled in the art selects a corresponding arrangement structure according to practical application and requirements, and uses a design rule that the first light reflected by the first pixel unit and the second light reflected by the second pixel unit form a white balance, which is not described herein again.
In another alternative embodiment, the pixel units arranged in the array are arranged along a predetermined direction, and the predetermined direction forms a predetermined angle θ with the first and/or second direction. The preset angle is in the same plane as the first direction and the second direction.
In a specific example, as shown in fig. 8, the pixel unit includes a first pixel unit including at least one first sub-pixel unit and a second pixel unit including at least one second sub-pixel unit. Each sub-pixel in the first sub-pixel units is arranged along a first direction, each row of the first sub-pixel units is arranged along a preset direction, namely an X direction, and the preset direction and the first direction form a preset angle theta; meanwhile, each sub-pixel in the second sub-pixel unit is arranged along the second direction, and each row of the second sub-pixel units is arranged along the preset direction, namely the X direction. The pixel units arranged in an array are arranged along a preset direction X, and the preset direction and the arrangement direction of each sub-pixel in the first sub-pixel unit, namely the first direction, form a preset angle theta; in other words, the pixel units of the present embodiment are arranged in an array inclined to the X direction by a predetermined angle θ. Under this structure, white balance is realized to the first colour of first light and the second colour of second light, and white balance can be realized to the second colour of first light and the first colour of second light, still accords with the colour gamut distribution law of horseshoe-shaped colour gamut map to improve the colour separation phenomenon that appears when current display panel is in the dark state.
Similarly, in this embodiment, each sub-pixel in the second sub-pixel unit may be arranged as a reference along the second direction, and each column of sub-pixels may be arranged along the preset direction Y, that is, the preset direction and the arrangement direction of each second sub-pixel in the second sub-pixel unit, that is, the second direction, form a preset angle θ array; in other words, the pixel units of the present embodiment are arranged in an array inclined to the Y direction by a predetermined angle θ. Similarly, under the structure, white balance is realized between the first color of the first light and the second color of the second light, white balance can be realized between the second color of the first light and the first color of the second light, and the color gamut distribution rule of the horseshoe-shaped color gamut diagram is still met, so that the color separation phenomenon of the existing display panel in a dark state is improved.
It should be noted that, the embodiment of the present invention does not limit the preset direction of the pixel unit, and does not realize the preset angle formed by the preset direction and the first direction or the second direction, and a person skilled in the art selects the corresponding preset direction and the preset angle according to practical applications to realize normal display of a bright state and a white balance state of a dark state of the display device, which is not described herein again.
It should be further noted that, in the structure in which the pixel units are arranged in the array along the predetermined direction according to the embodiment of the present invention, the embodiment of the present invention does not limit the specific structure of the pixel units under the arrangement structure, for example, the pixel cell may comprise a first pixel cell comprising a first sub-pixel cell and a second pixel cell comprising a second sub-pixel cell as shown in figure 3, the pixel unit may further include a first pixel unit including two first sub-pixel units and a second pixel unit including two second sub-pixel units, as shown in fig. 6, and those skilled in the art select the specific number of the first pixel unit and the second pixel unit under the arrangement structure and the arrangement structure between the two sub-pixel units according to practical application, the color separation phenomenon of the display device in the dark state is a design criterion, and is not described herein again.
According to the embodiment of the invention, the first sub-pixel units and the second pixel units are arranged on the display substrate in an array mode, the first pixel unit comprises at least one first sub-pixel unit, the second pixel unit comprises at least one second sub-pixel unit, and the extending direction of each sub-pixel in the second sub-pixel unit is intersected with the extending direction of each sub-pixel with the same color in the first sub-pixel unit, so that the problem of color separation under the irradiation of ambient light when the display panel is in a dark state in the prior art is solved, the dark state display effect of the display panel is effectively improved, and the display panel has a wide application prospect.
Accordingly, the display substrate of the above embodiments of the present invention is suitable for a display panel having a display substrate, and in an alternative embodiment, the display panel includes a display substrate and a color film layer, wherein,
the color film layer comprises a color film surrounded by a black matrix, and the shape and the arrangement of the color film are set according to the shape and the arrangement of each sub-pixel of the display substrate.
The display panel of the embodiment of the invention utilizes the COE technology, cancels the polarizer structure, and effectively improves the display brightness, reduces the whole thickness, improves the display color gamut and solves the color separation problem existing in the dark state environment of the display panel by adopting the pixel arrangement mode of the embodiment of the invention.
In a specific example, a specific structure of the display panel 3 is shown in fig. 9, and includes:
a substrate 31, and a first buffer layer 32 disposed on the substrate 31.
A driving circuit layer 33 disposed on the buffer layer 32. In a specific example, the driving circuit layer 33 includes an active layer 331 disposed on the first buffer layer 32, a first gate insulating layer 332 covering the active layer 331, a first gate electrode 333 disposed on the first gate insulating layer 332, a second gate insulating layer 334 covering the first gate electrode 333, a second gate electrode 335 disposed on the second gate insulating layer 334, an organic layer 336 covering the second gate electrode 335, a source-drain metal layer 337 disposed on the organic layer 336, and a planarization layer 338 covering the source-drain metal layer 337, where the source-drain metal layer 337 is electrically connected to the active layer 331 through via holes, respectively.
A light emitting device layer 34 disposed on the driving circuit layer 33. The light emitting device layer 34 emits display light in response to a driving signal of the driving circuit layer. In one specific example, as shown in fig. 9, the light emitting device layer 34 includes: a pixel defining layer 341 disposed on the planarization layer 338, an anode 342 disposed in an opening arranged in an array formed by the pixel defining layer 341, a light emitting material layer 343 covering the anode 342, and a cathode 344 covering the pixel defining layer 341 and the light emitting material layer 343. Wherein the light emitting material layer is configured as a pixel unit according to an embodiment of the present invention. An encapsulation layer 35 disposed on the light emitting device layer 34. In one specific example, the encapsulation layer is a multilayer encapsulation structure of inorganic material + organic material + inorganic material, thereby improving encapsulation performance.
And a color film layer 36 disposed on the encapsulation layer 35. In one specific example, the color film layer 36 includes: the color filter comprises a wiring layer 361 arranged on the packaging layer 35, a black matrix 362 corresponding to the pixel defining layer 341, and color films 363 with different colors arranged in openings arranged in an array surrounded by the black matrix 362. And an organic layer 364 covering the black matrix 362 and the color film 363. The cover plate 37 is disposed on the organic layer 364.
The color film layer corresponding to the sub-pixel arrangement structures is formed on the display substrate, so that the problem of color separation of the display panel in a dark state in the prior art under the irradiation of ambient light is solved, the dark state display effect of the display panel is effectively improved, and the display panel has a wide application prospect.
The display panel provided by the embodiment of the invention cancels a polarizer structure, and the pixel arrangement is the arrangement mode of the embodiment of the invention, so that the display brightness is effectively improved, the integral thickness is reduced, the display color gamut is improved, and the color separation problem existing in the dark state environment of the display panel is improved.
Another embodiment of the present invention provides a display device including the display panel described above. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame or a navigator. The display device can be implemented by referring to the above embodiments of the display panel, and repeated descriptions are omitted.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (11)
1. The display substrate is characterized by comprising pixel units arranged in an array mode, wherein each pixel unit comprises a first pixel unit and a second pixel unit, and each pixel unit is provided with a first pixel unit and a second pixel unit
The first pixel unit comprises at least one first sub-pixel unit, and each first sub-pixel unit comprises a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel which are arranged at intervals along a first direction;
the second pixel unit comprises at least one second sub-pixel unit, and each second sub-pixel unit comprises a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel which are arranged at intervals along a second direction; wherein the content of the first and second substances,
the extending direction of the first red sub-pixel is intersected with the extending direction of the second red sub-pixel;
the extending direction of the first green sub-pixel is crossed with the extending direction of the second green sub-pixel;
the extending direction of the first blue sub-pixel intersects with the extending direction of the second blue sub-pixel.
2. The display substrate of claim 1,
the extending direction of the first red sub-pixel is orthogonal to the extending direction of the second red sub-pixel;
the extending direction of the first green sub-pixel is orthogonal to the extending direction of the second green sub-pixel;
the extending direction of the first blue sub-pixel is orthogonal to the extending direction of the second blue sub-pixel.
3. The display substrate of claim 1,
the second red sub-pixel is close to the first sub-pixel unit relative to the second green sub-pixel and the second blue sub-pixel; or
The second blue sub-pixel is adjacent to the first sub-pixel unit with respect to the second green sub-pixel and the second red sub-pixel.
4. The display substrate of claim 1, wherein the first pixel unit comprises two first sub-pixel units and the second pixel unit comprises two second sub-pixel units.
5. The display substrate of claim 1,
the first red subpixel and the second red subpixel comprise hexagons of a first preset pattern;
the first green sub-pixel and the second green sub-pixel comprise pentagons of a second preset pattern;
the first blue subpixel and the second blue subpixel comprise hexagons of a third preset pattern;
the area of the first green sub-pixel is smaller than that of the first red sub-pixel, and the area of the first red sub-pixel is smaller than that of the first blue sub-pixel;
the area of the second green sub-pixel is smaller than the area of the second red sub-pixel, and the area of the second red sub-pixel is smaller than the area of the second blue sub-pixel.
6. The display substrate of claim 1, wherein the first sub-pixel unit further comprises a first white sub-pixel having an area equal to or larger than an area of the first red pixel;
the second sub-pixel unit further comprises a second white sub-pixel, and the area of the second white sub-pixel is larger than or equal to the area of the second red pixel.
7. The display substrate according to any one of claims 1 to 6, wherein the pixel units arranged in the array are arranged along a predetermined direction.
8. The display substrate of claim 7, wherein the predetermined direction comprises a first direction and/or a second direction.
9. A display substrate according to claim 7, wherein the predetermined direction is at a predetermined angle to the first and/or second direction.
10. A display panel comprising the display substrate according to any one of claims 1 to 9 and a color film layer, wherein,
the color film layer comprises a color film surrounded by a black matrix, and the shape and the arrangement of the color film are set according to the shape and the arrangement of each sub-pixel of the display substrate.
11. A display device characterized by comprising the display panel according to claim 10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114842797A (en) * | 2022-04-12 | 2022-08-02 | 京东方科技集团股份有限公司 | Display screen and display device |
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| CN103545345A (en) * | 2013-11-11 | 2014-01-29 | 京东方科技集团股份有限公司 | Display panel, manufacturing method of display panel and display device |
| CN104465714A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| CN107731870A (en) * | 2017-09-28 | 2018-02-23 | 上海天马有机发光显示技术有限公司 | Organic LED pixel structure and display panel comprising it, display device |
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| CN103545345A (en) * | 2013-11-11 | 2014-01-29 | 京东方科技集团股份有限公司 | Display panel, manufacturing method of display panel and display device |
| CN104465714A (en) * | 2014-12-30 | 2015-03-25 | 京东方科技集团股份有限公司 | Pixel structure, display method of pixel structure and display device |
| CN107731870A (en) * | 2017-09-28 | 2018-02-23 | 上海天马有机发光显示技术有限公司 | Organic LED pixel structure and display panel comprising it, display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114842797A (en) * | 2022-04-12 | 2022-08-02 | 京东方科技集团股份有限公司 | Display screen and display device |
| CN114842797B (en) * | 2022-04-12 | 2023-12-12 | 京东方科技集团股份有限公司 | Display screen and display device |
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