CN117642015A - Display panel and display device - Google Patents
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- CN117642015A CN117642015A CN202311614933.5A CN202311614933A CN117642015A CN 117642015 A CN117642015 A CN 117642015A CN 202311614933 A CN202311614933 A CN 202311614933A CN 117642015 A CN117642015 A CN 117642015A
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- 239000003086 colorant Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 48
- 230000005684 electric field Effects 0.000 claims description 39
- 230000003746 surface roughness Effects 0.000 claims description 20
- 239000003792 electrolyte Substances 0.000 claims description 16
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- -1 silver ions Chemical class 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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
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Abstract
The embodiment of the application discloses a display panel and a display device, comprising a plurality of sub-pixels arranged on a substrate, wherein the sub-pixels are used for emitting light rays with different colors so as to execute image display. The display panel further comprises a plurality of dimming parts, wherein the number of the dimming parts is smaller than that of the sub-pixels, one dimming part covers all light emitting directions of one sub-pixel, when the display panel is in a first display mode, the sub-pixels covered with the dimming parts emit light rays through the dimming parts to perform image display, and when the display panel is in a second display mode, the dimming parts adjust the directions of the light rays emitted by the sub-pixels so as to control the light rays of the sub-pixels and adjacent sub-pixels to coincide in a preset direction, and the dimming parts are used for adjusting the light emitting directions of the sub-pixels.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
An Organic Light-Emitting Diode (OLED) display device has many advantages of self-luminescence, low driving current, high luminous efficiency, short response time, high definition and contrast, a viewing angle of nearly 180 degrees, wide use temperature range, capability of realizing flexible display, large-area full-color display and the like, and is considered as a display device with the most development potential in the industry.
At present, in the daily office process, more and more users have more demands on the brightness of the light rays of the display screen in different directions, however, when the direction of the light rays of the pixels of the current display screen is adjusted, the aperture ratio of the pixels is generally reduced, so that the display effect is reduced, and therefore, how to realize the adjustment of the light emitting direction of the pixels while ensuring the aperture ratio of the pixels is a problem to be solved.
Disclosure of Invention
In view of the above-mentioned technical problems, the present application provides a display panel and a display device that effectively achieve adjustment of the light emitting direction of a pixel and ensure the aperture ratio of the pixel.
The application discloses display panel, including a plurality of sub-pixel that set up in the basement, a plurality of sub-pixel is used for the light of emergent different colours in order to carry out image display, display panel still includes a plurality of dimming parts, wherein, the quantity of dimming part is less than the quantity of sub-pixel, one dimming part cover in one all play light direction of sub-pixel, when display panel is in first display mode, cover have the sub-pixel of dimming part is through the image display is carried out to the emergent light of dimming part, when display panel is in the second display mode, the dimming part is adjusted the direction of the emergent light of sub-pixel is in order to control sub-pixel and adjacent the light coincidence of sub-pixel in the direction of predetermineeing.
Optionally, the plurality of sub-pixels include a first color sub-pixel, a second color sub-pixel, a third color sub-pixel and a fourth color sub-pixel, one of the first color sub-pixel, one of the second color sub-pixel, one of the third color sub-pixel and one of the fourth color sub-pixel are adjacently disposed and form a pixel unit, in each of the pixel units, the dimming portion is disposed on any one of the light emitting surfaces of the sub-pixels in a covering manner, and the sub-pixels covered by the dimming portion are dimming sub-pixels.
Optionally, the dimming part includes a first electrode and a second electrode that extend along a first direction, the first electrode and the second electrode are oppositely disposed along a second direction at a preset distance, the first electrode, the second electrode and the light emitting surface of the dimming sub-pixel are parallel, a closed space is formed between the first electrode and the second electrode, and electrolyte is filled between the first electrode and the second electrode, when an electric field is formed between the first electrode and the second electrode, charged particles in the electrolyte form a shading layer to shade light, and the first direction is perpendicular to the second direction.
Optionally, the surface roughness of the first electrode is smaller than or equal to a first threshold, the surface roughness of the side of the second electrode facing the sub-pixel is larger than or equal to a second threshold, the first threshold is smaller than the second threshold, when the charged particles form the light shielding layer at the first electrode, the first electrode is in a mirror state and is used for reflecting received light, and when the charged particles form the light shielding layer at the second electrode, the second electrode absorbs the light of the dimming sub-pixel to shield the light.
Optionally, the light modulation part further includes a third electrode and a fourth electrode, the pixel unit further includes a plurality of pixel definition parts, the pixel definition parts are disposed between any two adjacent sub-pixels and are used for isolating sub-pixels with different colors, the plurality of pixel definition parts include a first pixel definition part and a second pixel definition part which are disposed adjacently, and the light modulation sub-pixels are sandwiched between the first pixel definition part and the second pixel definition part. The third electrode is connected to the first end of the first electrode and the first pixel definition part, the fourth electrode is connected to the first end of the second electrode and the first pixel definition part, the third electrode is parallel to the fourth electrode, the surface roughness of the third electrode and the fourth electrode is smaller than or equal to the first threshold value, the electrolyte is filled between the third electrode and the fourth electrode, when an electric field is formed between the third electrode and the fourth electrode, the charged particles form the shading layer on the third electrode or the fourth electrode, and the third electrode or the fourth electrode is used for reflecting received ambient light to the direction of an adjacent sub-pixel.
Optionally, a grid structure is disposed on a side of the fourth electrode adjacent to the third electrode, and when the charged particles are deposited on the grid structure and form the light shielding layer, light emitted by the light modulation sub-pixel diffracts light of a plurality of different colors through the grid structure.
Optionally, the dimming part further includes a fifth electrode and a sixth electrode, the fifth electrode is connected to the second end of the first electrode and the second pixel defining part, the sixth electrode is connected to the second end of the second electrode and the second pixel defining part, the fifth electrode is parallel to the sixth electrode, the electrolyte is filled between the fifth electrode and the sixth electrode, the surface roughness of the fifth electrode and the sixth electrode is less than or equal to the first threshold, and when the charged particles form the shading layer at the fifth electrode or the sixth electrode, the fifth electrode or the sixth electrode is in a mirror state and is used for reflecting the received ambient light to the direction of the adjacent sub-pixel.
Optionally, the second display mode includes a first dimming mode, when the brightness of the ambient light is greater than or equal to a preset brightness threshold, the display panel executes the first dimming mode, no electric field is formed between the first electrode and the second electrode, the first electrode and the second electrode are in a light transmission state, and the light emitted by the dimming sub-pixel is emitted by the first electrode and the second electrode; an electric field is formed between the third electrode and the fourth electrode, the third electrode is in a mirror state and is used for reflecting received ambient light to an adjacent sub-pixel, an electric field is formed between the fifth electrode and the sixth electrode, and the fifth electrode is in a mirror state and is used for reflecting the received ambient light to the direction of the adjacent sub-pixel.
Optionally, the display mode includes a second dimming mode, when the brightness of the ambient light is less than the preset brightness threshold, the display panel executes the second dimming mode, an electric field is formed between the first electrode and the second electrode, the charged particles form the light shielding layer at the second electrode, the second electrode absorbs the light emitted by the dimming sub-pixel, the third electrode and the fourth electrode do not form an electric field, and the light emitted by the dimming sub-pixel is emitted to an adjacent sub-pixel through the third electrode and the fourth electrode; an electric field is not formed between the fifth electrode and the sixth electrode, and light rays emitted by the dimming sub-pixel are emitted to the direction of an adjacent sub-pixel through the fifth electrode and the sixth electrode.
The application also provides a display device, which comprises a power supply module and the display panel, wherein the power supply module is used for providing a driving power supply for executing image display on the display panel.
Compared with the prior art, the utility model discloses a light adjusting part is through setting up, can adjust the light that sub-pixel was emergent, and then adjusts adjacent sub-pixel and preserve ascending light luminance, promotes display panel's visibility to through setting up a plurality of electrodes respectively, make the light adjusting part can carry out different display modes under different environment light intensity, can effectively promote display panel's the effect of adjusting luminance when guaranteeing main visual angle visibility.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of the array substrate of FIG. 1;
fig. 3 is a schematic structural diagram of the dimming part in fig. 2;
FIG. 4 is a schematic diagram illustrating a light distribution of the light modulator of FIG. 3 in a first light modulation mode;
FIG. 5 is a schematic diagram illustrating a light distribution of the light adjusting portion in FIG. 3 in a second light adjusting mode;
fig. 6 is a schematic structural diagram of a dimming part according to a second embodiment of the present disclosure;
FIG. 7 is a schematic diagram illustrating a light distribution of the light modulating portion of FIG. 6 in a first light modulating mode;
fig. 8 is a schematic diagram of light distribution of the dimming part in fig. 6 in a second dimming mode.
Reference numerals illustrate:
the display device comprises a display device 100, a display panel 10, a power module 20, a first direction F1, a second direction F2, a substrate 11, a driving layer 12, a pixel unit 13, a first display electrode layer 131, a second display electrode layer 132, a first color sub-pixel 133A, a second color sub-pixel 133B, a third color sub-pixel 133C, a fourth color sub-pixel 133D, a pixel defining part 134, a dimming part 15, a first electrode 51, a second electrode 52, a third electrode 53, a fourth electrode 54, a fifth electrode 55, a sixth electrode 56, a first end 51A of the first electrode, a second end 51B of the first electrode, a first end 52A of the second electrode, a second end 53B of the second electrode, a first pixel defining part 134A, a second pixel defining part 134B, and a grid structure RA.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. Directional terms referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear description and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the drawings are used for distinguishing between different objects and not for describing a particular sequential order.
Furthermore, the terms "comprises," "comprising," "includes," "including," "may be" or "including" as used in this application mean the presence of the corresponding function, operation, element, etc. disclosed, but not limited to other one or more additional functions, operations, elements, etc. Furthermore, the terms "comprises" or "comprising" mean that there is a corresponding feature, number, step, operation, element, component, or combination thereof disclosed in the specification, and that there is no intention to exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof. Furthermore, when describing embodiments of the present application, use of "may" means "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device 100 according to a first embodiment of the present disclosure. The display device 100 includes a display panel 10 and a power module 20, wherein the power module 20 is disposed on a back surface of the display panel 10, i.e. a non-display surface of the display panel 10. The power module 20 is used for providing driving power for displaying images on the display panel 10.
Referring to fig. 2, fig. 2 is a schematic cross-sectional structure of the display panel in fig. 1.
As shown in fig. 2, the display panel 10 includes a substrate 11, a driving layer 12, and a plurality of pixel units 13, wherein the driving layer 12 is stacked on the substrate 11 along a thickness direction of the array substrate 10c, the pixel units 13 are stacked on a side of the driving layer 12 away from the substrate 11, and the driving layer 12 is used for driving the pixel units 13 to emit light.
The pixel unit 13 includes a first display electrode layer 131, a second display electrode layer 132, and a plurality of sub-pixels with different colors, where the first display electrode layer 131 and the second display electrode layer 132 are disposed opposite to each other at a preset distance, and the plurality of sub-pixels with different colors are sequentially disposed between the first display electrode layer 131 and the second display electrode layer 132, and the first display electrode layer 131 and the second display electrode layer 132 are configured to provide driving voltages for the sub-pixels.
The display panel 10 further includes a plurality of dimming portions 15, where the plurality of dimming portions 15 are disposed in one-to-one correspondence with the plurality of pixel units 13, and each pixel unit 13 includes a first color sub-pixel 133A, a second color sub-pixel 133B, a third color sub-pixel 133C, and a fourth color sub-pixel 133D, where the dimming portion covers a light emitting surface of any one of the first color sub-pixel 133A, the second color sub-pixel 133B, the third color sub-pixel 133C, and the fourth color sub-pixel 133D, and the sub-pixels covered by the dimming portion 15 are dimming sub-pixels, that is, the dimming portion 15 covers all light emitting directions of the dimming sub-pixels. When the display panel 10 is in the first display mode, the dimming sub-pixel normally emits light to display an image, and when the display panel 10 executes the second display mode, the dimming part adjusts the dimming sub-pixel to coincide with the light of the adjacent sub-pixel in the preset direction, thereby interfering the light brightness of the adjacent sub-pixel in the preset direction, and further adjusting the visible range of the adjacent sub-pixel to realize the peep-proof effect.
The pixel unit 13 further includes a pixel defining portion 134, where the pixel defining portion 134 is disposed between any two sub-pixels, and is used for isolating two sub-pixels disposed adjacently.
In this embodiment, the first color sub-pixel 133A, the second color sub-pixel 133B, the third color sub-pixel 133C, and the fourth color sub-pixel 133D may be a red sub-pixel, a blue sub-pixel, a green sub-pixel, and a white sub-pixel, respectively, where the fourth color sub-pixel 133D is a dimming sub-pixel, and of course, may be set to other color sub-pixels and set to other color sub-pixels as required, which is not limited in this application.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the dimming part in fig. 2.
As shown in fig. 3, the dimming part 15 includes a first electrode 51, a second electrode 52, a third electrode 53, a fourth electrode 54, a fifth electrode 55, and a sixth electrode 56, wherein the first electrode 51, the second electrode 52, the third electrode 53, the fourth electrode 54, the fifth electrode 55, and the sixth electrode 56 are transparent electrodes.
The first electrode 51 extends along the first direction F1 and is parallel to the light emitting surface of the dimming subpixel, the second electrode 52 is disposed at a predetermined distance from the first electrode 51 along the second direction F2, and the second electrode 52 is parallel to the first electrode 51. The first electrode 51 and the second electrode 52 are sealed and filled with an electrolyte, charged particles are arranged in the electrolyte, and when the first electrode 51 and the second electrode 52 are electrified, an electric field is formed between the first electrode 51 and the second electrode 52 and used for driving the charged particles to form a shading layer between the first electrode 51 and the second electrode 52. The surface roughness of the first electrode 51 is smaller than or equal to a first threshold value, the surface roughness of the second electrode 52 is larger than or equal to a second threshold value, the second threshold value is larger than the first threshold value, when the charged particles form a shading layer on the surface of the first electrode 51, the first electrode 51 is in a mirror state and can reflect light emitted by the dimming sub-pixel, and when the charged particles form a shading layer near the second electrode 52, the surface of the second electrode 52 is in a shading state and can effectively absorb the light emitted by the dimming sub-pixel, so that the shading effect is achieved.
The projection area of the first electrode 51 and the second electrode 52 along the second direction F2 on the surface of the dimming subpixel is greater than or equal to the area of the light emitting surface of the dimming subpixel, that is, when the charged particles form a light shielding layer between the first electrode 51 and the second electrode 52, the light emitted by the dimming subpixel can be completely covered, so as to achieve the effect of complete light shielding.
In an exemplary embodiment, the charged particles may be metal cations (Ag, zn, etc.) that are positively charged, and when an electric field is formed between the first electrode 51 and the second electrode 52, the metal cations may form a black light shielding layer after getting electrons, and of course, other charged particles may be set according to specific needs, which is not limited in this application.
The plurality of pixel defining portions 134 include a first pixel defining portion 134A and a second pixel defining portion 134B disposed adjacently, the dimming sub-pixel is sandwiched between the first pixel defining portion 134A and the second pixel defining portion 134B, two ends of the third electrode 53 are respectively connected to the first end 51A of the first electrode and the first pixel defining portion 134A, two ends of the fourth electrode 54 are respectively connected to the first end 52A of the second electrode and the first pixel defining portion 134A, the third electrode 53 is parallel to the fourth electrode 54, an electrolyte containing charged particles is filled between the third electrode 53 and the fourth electrode 54, and when the third electrode 53 and the fourth electrode 54 are energized, an electric field is formed between the third electrode 53 and the fourth electrode 54 for driving the charged particles to form a light shielding layer between the third electrode 53 and the fourth electrode 54. The surface roughness of the third electrode 53 and the fourth electrode 54 is less than or equal to the first threshold, and when the charged particles form a light shielding layer on the fourth electrode 54, the fourth electrode 54 is in a mirror state, and at this time, the fourth electrode 54 can reflect external ambient light.
The two ends of the fifth electrode 55 are respectively connected to the second end 51B of the first electrode and the second pixel defining portion 134B, the two ends of the sixth electrode 56 are respectively connected to the second end 52B of the second electrode and the second pixel defining portion 134B, the fifth electrode 55 is parallel to the sixth electrode 56, an electrolyte containing charged particles is filled between the fifth electrode 55 and the sixth electrode 56, and when the fifth electrode 55 and the sixth electrode 56 are energized, an electric field is formed between the fifth electrode 55 and the sixth electrode 56 for driving the charged particles to form a light shielding layer between the fifth electrode 55 and the sixth electrode 56. The surface roughness of the fifth electrode 55 and the sixth electrode 56 is less than or equal to the first threshold, and when the charged particles form a light shielding layer on the sixth electrode 56, the sixth electrode 56 is in a mirror state, and at this time, the sixth electrode 56 can reflect external ambient light.
The cross sections of the first electrode 51, the second electrode 52, the third electrode 53, the fourth electrode 54, the fifth electrode 55 and the sixth electrode 56 are linear, the first electrode 51, the third electrode 53 and the fifth electrode 55 are sequentially connected end to form a trapezoid structure, of course, the cross sections of the first electrode 51, the second electrode 52, the third electrode 53, the fourth electrode 54, the fifth electrode 55 and the sixth electrode 56 can also be arc-shaped structures, and the first electrode 51, the third electrode 53 and the fifth electrode 55 are connected end to form a semicircular structure.
The first electrode 51, the third electrode 53 and the fifth electrode 55 may be electrically connected to each other and controlled by the same power control unit (not shown), the second electrode 52, the fourth electrode 54 and the sixth electrode 56 may be electrically connected to each other and controlled by the same power control unit, and of course, the first electrode 51, the third electrode 53 and the fifth electrode 55, and the second electrode 52, the fourth electrode 54 and the sixth electrode 56 may be separately provided and controlled by different power control units.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a light distribution of the dimming portion in fig. 3 in a first dimming mode.
As shown in fig. 4, when the display panel 10 performs the first display mode, the electrodes in the light modulating portion 15 are not energized without applying a voltage to form an electric field, and the light modulating sub-pixels normally emit light to perform image display. The second display mode includes a first dimming mode and a second dimming mode.
When the display panel performs the second display mode and the ambient light brightness is greater than or equal to the preset brightness threshold, the display panel 10 performs the first dimming mode, at this time, the first electrode 51 and the second electrode 52 do not form an electric field, the first electrode 51 and the second electrode 52 are in a transparent state, the light emitted by the dimming sub-pixel through the first electrode 51 and the second electrode 52 forms an electric field between the third electrode 53 and the fourth electrode 54, so as to control the third electrode 53 or the fourth electrode 54 to be in a mirror state, for example, when the charged particles are positively charged metal silver ions, if the third electrode 53 outputs a positive voltage, the fourth electrode 54 outputs a negative voltage, at this time, the metal silver ions obtain electrons near the fourth electrode 54 to form a shading layer, because the surface roughness of the fourth electrode 54 is less than or equal to the first threshold, the fourth electrode 54 forms a reflecting layer to reflect the received ambient light, and because the fourth electrode 54 reflects the ambient light to the direction in which the adjacent sub-pixel is located, thereby the light emitted by the adjacent sub-pixel can be interfered.
An electric field is formed between the fifth electrode 55 and the sixth electrode 56 to control the fifth electrode 55 or the sixth electrode 56 to be in a mirror state for reflecting ambient light, and the working principle is the same as that of the third electrode 53 and the fourth electrode 54 for interfering with the light emitted from the adjacent sub-pixels, when each pixel unit 13 reflects ambient light through the left and right side electrodes of the dimming sub-pixel, that is, the fourth electrode 54 and the sixth electrode 56, the contrast of the display panel 10 is reduced in a large viewing angle, the visibility is reduced, and thus the brightness of the sub-pixel in a preset direction is reduced, and since the first electrode 51 and the second electrode 52 are in a transparent state, the light emitted from the dimming sub-pixel is emitted through the first electrode 51 and the second electrode 52, the brightness of the display panel 10 in the main viewing angle direction can be enhanced, so that the visibility of the main viewing angle of the display panel 10 is enhanced under strong light.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating a light distribution of the dimming portion in fig. 3 in a second dimming mode.
As shown in fig. 5, when the display panel performs the second display mode and the ambient light brightness is less than the preset brightness threshold, the display panel 10 performs the second dimming mode, and at this time, the first electrode 51 and the second electrode 52 form an electric field, and the charged particles between the first electrode 51 and the second electrode 52 form a light shielding layer near the second electrode 52, and the surface roughness of the second electrode 52 is greater than the second threshold, so that the light emitted by the dimming sub-pixel is absorbed by the second electrode 52, thereby realizing the light shielding effect.
An electric field is not formed between the third electrode 53 and the fourth electrode 54 to control the third electrode 53 and the fourth electrode 54 to be in a transparent state, and light emitted by the dimming sub-pixel is emitted through the third electrode 53 and the fourth electrode 54 and is used for being overlapped with light emitted by the left side and the right side of the adjacent sub-pixel, so that the brightness of the light of the adjacent sub-pixel in a preset direction is interfered.
When the third electrode 53 is applied with a positive voltage and the fourth electrode 54 is applied with a negative voltage and the metal silver ions form a light shielding layer on the fourth electrode 54 to reflect light, that is, to execute the first dimming mode, when the next frame is in the second dimming mode, the third electrode 53 needs to be applied with a negative voltage and the fourth electrode 54 needs to be applied with a positive voltage, that is, the voltage direction is changed, so that the metal silver ions lose electrons, the light shielding layer formed by the metal silver ions disappears, when the light shielding layer completely disappears to be in a transparent state, the third electrode 53 and the fourth electrode 54 stop applying voltages, and the electric field disappears to maintain the transparent state between the third electrode 53 and the fourth electrode 54.
The working principle of the fifth electrode 55 and the sixth electrode 56 is the same as that of the third electrode 53 and the fourth electrode 54, charged particles between the fifth electrode 55 and the sixth electrode 56 are controlled to be in a transparent state, and light emitted by the dimming sub-pixel is emitted through the fifth electrode 55 and the sixth electrode 56 and is used for being overlapped with light of an adjacent sub-pixel in a preset direction, so that the light intensity of the adjacent sub-pixel in the preset direction is interfered.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a dimming part according to a second embodiment of the present disclosure.
As shown in fig. 6, the dimming part 15 includes a first electrode 51, a second electrode 52, a third electrode 53, a fourth electrode 54, a fifth electrode 55, and a sixth electrode 56, wherein the first electrode 51, the second electrode 52, the third electrode 53, the fourth electrode 54, the fifth electrode 55, and the sixth electrode 56 are transparent electrodes.
The first electrode 51 extends along the first direction F1 and is parallel to the light emitting surface of the dimming sub-pixel, the second electrode 52 is opposite to the first electrode 51 at a preset distance and is arranged in parallel, electrolyte is filled between the first electrode 51 and the second electrode 52, charged particles are arranged in the electrolyte, when the first electrode 51 and the second electrode 52 are electrified, an electric field is formed between the first electrode 51 and the second electrode 52, and the electric field is used for driving the charged particles to form a shading layer between the first electrode 51 and the second electrode 52. The surface roughness of the first electrode 51 is smaller than or equal to a first threshold value, the surface roughness of the second electrode 52 is larger than a second threshold value, when the charged particles form a shading layer on the surface of the first electrode 51, the first electrode 51 is in a mirror state and can reflect light emitted by the dimming sub-pixel, and when the charged particles form a shading layer near the second electrode 52, the surface of the second electrode 52 is in a shading state and can effectively absorb the light emitted by the dimming sub-pixel, so that a shading effect is achieved.
The projection area of the first electrode 51 and the second electrode 52 along the second direction F2 on the surface of the dimming subpixel is greater than or equal to the area of the light emitting surface of the dimming subpixel, that is, when the charged particles form a light shielding layer between the first electrode 51 and the second electrode 52, the light emitted by the dimming subpixel can be completely covered, so as to achieve the effect of complete light shielding.
In an exemplary embodiment, the charged particles may be metal cations (Ag, zn, etc.) that are positively charged, and when an electric field is formed between the first electrode 51 and the second electrode 52, the metal cations may form a black light shielding layer after getting electrons, and of course, other charged particles may be set according to specific needs, which is not limited in this application.
The plurality of pixel defining portions 134 include a first pixel defining portion 134A and a second pixel defining portion 134B, the dimming sub-pixel is disposed between the first pixel defining portion 134A and the second pixel defining portion 134B, two ends of the third electrode 53 are respectively connected to the first end 51A of the first electrode and the first pixel defining portion 134A, two ends of the fourth electrode 54 are respectively connected to the first end 52A of the second electrode and the first pixel defining portion 134A, the third electrode 53 is parallel to the fourth electrode 54, an electrolyte containing charged particles is filled between the third electrode 53 and the fourth electrode 54, and when the third electrode 53 and the fourth electrode 54 are energized, an electric field is formed between the third electrode 53 and the fourth electrode 54 for driving the charged particles to form a light shielding layer between the third electrode 53 and the fourth electrode 54. The surface roughness of the third electrode 53 is less than or equal to the first threshold, and when the charged particles form a light shielding layer on the third electrode 53, the third electrode 53 is in a mirror state, and at this time, the third electrode 53 can reflect external ambient light. The surface roughness of the fourth electrode 54 is smaller than or equal to the first threshold value, and a regularly arranged grid structure RA is arranged on one side of the fourth electrode 54 facing the dimming sub-pixel and used for diffracting light emitted by the dimming sub-pixel, when charged particles are deposited on the grid structure of the fourth electrode 54 to form a shading layer, the grid structure forms a grating and is used for diffracting the light emitted by the dimming sub-pixel, the light emitted by the dimming sub-pixel is diffracted into light with various colors, so that interference on the light of the adjacent sub-pixel in a preset direction is enhanced, and light brightness of the adjacent sub-pixel in the preset direction is reduced.
The two ends of the fifth electrode 55 are respectively connected to the second end 51B of the first electrode and the second pixel defining portion 134B, the two ends of the sixth electrode 56 are respectively connected to the second end 52B of the second electrode and the second pixel defining portion 134B, the fifth electrode 55 is parallel to the sixth electrode 56, an electrolyte containing charged particles is filled between the fifth electrode 55 and the sixth electrode 56, and when the fifth electrode 55 and the sixth electrode 56 are energized, an electric field is formed between the fifth electrode 55 and the sixth electrode 56 for driving the charged particles to form a light shielding layer between the fifth electrode 55 and the sixth electrode 56. When the charged particles form a shading layer on the fifth electrode 55, the fifth electrode 55 is in a mirror state, at this time, the fifth electrode 55 can reflect external ambient light, the sixth electrode 56 has a surface roughness smaller than or equal to the first threshold and is provided with a regularly arranged grid structure on one side of the sixth electrode 56 facing the dimming sub-pixel, so as to diffract light emitted from the dimming sub-pixel, when the charged particles are deposited on the grid structure of the sixth electrode 56 to form the shading layer, the grid forms a grating, so that light emitted from the dimming sub-pixel is diffracted, and the light emitted from the dimming sub-pixel is diffracted into light with multiple colors, thereby enhancing interference on light of adjacent sub-pixels in a preset direction and further reducing light brightness of the adjacent sub-pixels in the preset direction.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a light distribution of the dimming portion in the first dimming mode in fig. 6.
As shown in fig. 7, when the display panel 10 performs the first display mode, the light modulation sub-pixel normally emits light to perform image display when the electrodes in the light modulation section 15 are not energized to form an electric field. The second display mode includes a first dimming mode and a second dimming mode.
When the display panel executes the second display mode and the ambient light brightness is greater than or equal to the preset brightness threshold, the display panel 10 executes the first dimming mode, at this time, the first electrode 51 and the second electrode 52 do not form an electric field, the first electrode 51 and the second electrode 52 are in a transparent state, the dimming sub-pixel emits light through the first electrode 51 and the second electrode 52, and an electric field is formed between the third electrode 53 and the fourth electrode 54 to control the third electrode 53 to be in a mirror state for reflecting the ambient light, and the reflected ambient light is used for interfering the light emitted by the adjacent sub-pixel, thereby reducing the light brightness of the adjacent sub-pixel in the preset direction. Taking positively charged metal ions as an example, the third electrode 53 is controlled to output a negative voltage, and the fourth electrode 54 is controlled to output a positive voltage, so that the metal ions are deposited near the third electrode 53 to form a light shielding layer, thereby forming the third electrode 53 into a mirror state for reflecting ambient light. An electric field is formed between the fifth electrode 55 and the sixth electrode 56 to control the fifth electrode 55 to be in a mirror state for reflecting ambient light. Taking positively charged metal ions as an example, the fifth electrode 55 is controlled to output a negative voltage, and the sixth electrode 56 is controlled to output a positive voltage, so that the metal ions are deposited near the fifth electrode 55 to form a light shielding layer, thereby forming the fifth electrode 55 into a mirror state for reflecting ambient light.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a light distribution of the dimming portion in the second dimming mode in fig. 6.
As shown in fig. 8, when the display panel performs the second display mode and the ambient light brightness is less than the preset brightness threshold, the display panel 10 performs the second dimming mode, and at this time, the first electrode 51 and the second electrode 52 apply a voltage to form an electric field, and the charged particles between the first electrode 51 and the second electrode 52 form a light shielding layer near the second electrode 52, and the surface roughness of the second electrode 52 is greater than the second threshold, so that the light emitted by the dimming sub-pixel is absorbed by the second electrode 52, thereby realizing the light shielding effect. The voltage is stopped being applied between the third electrode 53 and the fourth electrode 54, the electric field disappears to control the third electrode 53 and the fourth electrode 54 to be in a transparent state, and the light emitted by the dimming sub-pixel is emitted through the third electrode 53 and the fourth electrode 54 to reduce the brightness of the light emitted by the adjacent sub-pixel in the preset direction. Because the fourth electrode 54 is provided with the grid structure RA towards the dimming subpixel side for diffracting the light emitted by the dimming subpixel, when the charged particles are deposited on the grid structure of the fourth electrode 54 to form the shading layer, the grid structure forms a grating for diffracting the light emitted by the dimming subpixel, and the light emitted by the dimming subpixel is diffracted into light of various colors, so that the interference intensity on the light of the adjacent subpixels is enhanced, and the dimming effect is further enhanced.
The voltage is stopped being applied between the fifth electrode 55 and the sixth electrode 56, the electric field disappears to control the fifth electrode 55 and the sixth electrode 56 to be in a transparent state, and the light emitted by the dimming sub-pixel is emitted through the fifth electrode 55 and the sixth electrode 56 and is used for being overlapped with the light emitted by the left side and the right side of the adjacent sub-pixel so as to interfere the light brightness of the adjacent sub-pixel in a preset direction. Because the sixth electrode 56 is provided with the grid structure RA towards the one side of adjusting luminance sub-pixel for diffract the light that adjusts luminance sub-pixel outgoing, when the charged particle deposit formed the shading layer at the grid structure of sixth electrode 56, the grid structure formed the grating for diffract the light that adjusts luminance sub-pixel outgoing, adjust luminance sub-pixel outgoing light diffraction and be the light of multiple colour, thereby strengthen the interference intensity to adjacent sub-pixel light, and then strengthen the effect of adjusting luminance.
Through setting up the portion of adjusting luminance, can adjust the light that sub-pixel was emergent, and then adjust adjacent sub-pixel and predetermine ascending light luminance, promote display panel's visibility, and through setting up respectively a plurality of electrodes, make the portion of adjusting luminance can carry out different display modes under different environment light intensity, can effectively promote display panel's the effect of adjusting luminance when guaranteeing the visibility of main visual angle, and, through setting up grid structure at fourth electrode and sixth electrode, can make the light diffraction that adjusts luminance sub-pixel and emergent go out multiple colour, thereby the reinforcing is to the interference of adjacent sub-pixel light in predetermineeing the direction, and then reduce adjacent sub-pixel and predetermine the light luminance of direction.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. A display panel comprises a plurality of sub-pixels arranged on a substrate, wherein the sub-pixels are used for emitting light rays with different colors to execute image display; the display panel is characterized by further comprising a plurality of dimming parts, wherein the number of the dimming parts is smaller than that of the sub-pixels, one dimming part covers all light emitting directions of one sub-pixel, when the display panel is in a first display mode, the sub-pixels covered with the dimming parts emit light rays through the dimming parts to display images, and when the display panel is in a second display mode, the dimming parts adjust the directions of the light rays emitted by the sub-pixels so as to control the superposition of the sub-pixels and the adjacent sub-pixels in the preset direction.
2. The display panel according to claim 1, wherein the plurality of sub-pixels include a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel, one of the first color sub-pixel, one of the second color sub-pixel, one of the third color sub-pixel, and one of the fourth color sub-pixel are disposed adjacent to each other and constitute one pixel unit, and in each of the pixel units, the dimming portion is disposed to cover the light-emitting surface of any one of the sub-pixels, and the sub-pixels covered by the dimming portion are dimming sub-pixels.
3. The display panel according to claim 2, wherein the light adjusting portion includes a first electrode and a second electrode extending along a first direction, the first electrode and the second electrode are disposed opposite to each other with a predetermined distance therebetween along a second direction, the first electrode, the second electrode and the light emitting surface of the light adjusting sub-pixel are parallel to each other, a sealed space is formed between the first electrode and the second electrode, and an electrolyte is filled between the first electrode and the second electrode, and when an electric field is formed between the first electrode and the second electrode, charged particles in the electrolyte form a light shielding layer to shield light, and the first direction is perpendicular to the second direction.
4. A display panel as claimed in claim 3, characterized in that the surface roughness of the first electrode is smaller than or equal to a first threshold value, the surface roughness of the second electrode facing the sub-pixel is larger than or equal to a second threshold value, the first threshold value is smaller than the second threshold value, the first electrode is in a mirror state when the charged particles form the light shielding layer at the first electrode, and is used for reflecting received light, and the second electrode absorbs the light of the dimming sub-pixel to shield when the charged particles form the light shielding layer at the second electrode.
5. The display panel according to claim 4, wherein the dimming portion further comprises a third electrode and a fourth electrode, the pixel unit further comprises a plurality of pixel defining portions disposed between any adjacent two of the sub-pixels for isolating the sub-pixels of different colors, the plurality of pixel defining portions comprises a first pixel defining portion and a second pixel defining portion disposed adjacently, and the dimming sub-pixel is sandwiched between the first pixel defining portion and the second pixel defining portion;
the third electrode is connected to the first end of the first electrode and the first pixel defining part, the fourth electrode is connected to the first end of the second electrode and the first pixel defining part, the third electrode is parallel to the fourth electrode, the surface roughness of the third electrode and the fourth electrode is smaller than or equal to the first threshold value, the electrolyte is filled between the third electrode and the fourth electrode, when an electric field is formed between the third electrode and the fourth electrode, the charged particles form the shading layer on the third electrode or the fourth electrode, and the third electrode or the fourth electrode is used for reflecting received ambient light to adjacent sub-pixels.
6. The display panel of claim 5, wherein a grid structure is disposed on a side of the fourth electrode adjacent to the third electrode, and when the charged particles are deposited on the grid structure and form the light shielding layer, light emitted from the light modulating sub-pixel diffracts light of a plurality of different colors through the grid structure.
7. The display panel according to claim 5, wherein the light adjusting portion further comprises a fifth electrode and a sixth electrode, the fifth electrode is connected to the second end of the first electrode and the second pixel defining portion, the sixth electrode is connected to the second end of the second electrode and the second pixel defining portion, the fifth electrode is parallel to the sixth electrode, the electrolyte is filled between the fifth electrode and the sixth electrode, the surface roughness of the fifth electrode and the sixth electrode is less than or equal to the first threshold, and when the charged particles form the light shielding layer at the fifth electrode or the sixth electrode, the fifth electrode or the sixth electrode is in a mirror state for reflecting the received ambient light to a direction in which an adjacent sub-pixel is located.
8. The display panel according to claim 7, wherein the second display mode includes a first dimming mode, the display panel performs the first dimming mode when the brightness of the ambient light is greater than or equal to a preset brightness threshold, no electric field is formed between the first electrode and the second electrode, the first electrode and the second electrode are in a light-transmitting state, and the light emitted by the dimming sub-pixel is emitted through the first electrode and the second electrode;
an electric field is formed between the third electrode and the fourth electrode, the third electrode is in a mirror state and is used for reflecting received ambient light to an adjacent sub-pixel, an electric field is formed between the fifth electrode and the sixth electrode, and the fifth electrode is in a mirror state and is used for reflecting the received ambient light to the direction of the adjacent sub-pixel.
9. The display panel according to claim 7, wherein the display mode includes a second dimming mode, the display panel performing the second dimming mode when the brightness of the ambient light is less than the preset brightness threshold, an electric field being formed between the first electrode and the second electrode, the charged particles forming the light shielding layer at the second electrode, the second electrode absorbing the light emitted from the dimming subpixel, the third electrode and the fourth electrode not forming the electric field, the light emitted from the dimming subpixel being emitted to an adjacent subpixel through the third electrode and the fourth electrode;
an electric field is not formed between the fifth electrode and the sixth electrode, and light rays emitted by the dimming sub-pixel are emitted to the direction of an adjacent sub-pixel through the fifth electrode and the sixth electrode.
10. A display device comprising a power supply module and the display panel according to any one of claims 1 to 9, the power supply module being configured to supply a driving power for performing image display for the display panel.
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|---|---|---|---|
| CN202311614933.5A CN117642015A (en) | 2023-11-29 | 2023-11-29 | Display panel and display device |
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| CN202311614933.5A CN117642015A (en) | 2023-11-29 | 2023-11-29 | Display panel and display device |
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| US20170124953A1 (en) * | 2015-11-04 | 2017-05-04 | Samsung Display Co., Ltd. | Organic light emitting display panel |
| CN111029481A (en) * | 2019-12-12 | 2020-04-17 | 京东方科技集团股份有限公司 | Display panel, control method thereof and display device |
| US20230006002A1 (en) * | 2021-06-30 | 2023-01-05 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display module and display device |
| CN115843199A (en) * | 2023-02-20 | 2023-03-24 | 惠科股份有限公司 | Display panel and display device |
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2023
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170124953A1 (en) * | 2015-11-04 | 2017-05-04 | Samsung Display Co., Ltd. | Organic light emitting display panel |
| CN111029481A (en) * | 2019-12-12 | 2020-04-17 | 京东方科技集团股份有限公司 | Display panel, control method thereof and display device |
| US20230006002A1 (en) * | 2021-06-30 | 2023-01-05 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display module and display device |
| CN115843199A (en) * | 2023-02-20 | 2023-03-24 | 惠科股份有限公司 | Display panel and display device |
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