CN113161406B - Display panel, manufacturing method of display panel and display device - Google Patents
Display panel, manufacturing method of display panel and display device Download PDFInfo
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- CN113161406B CN113161406B CN202110459355.7A CN202110459355A CN113161406B CN 113161406 B CN113161406 B CN 113161406B CN 202110459355 A CN202110459355 A CN 202110459355A CN 113161406 B CN113161406 B CN 113161406B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 26
- 238000002834 transmittance Methods 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 230000004075 alteration Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
Abstract
The application provides a display panel, a manufacturing method of the display panel and a display device, wherein the display panel comprises a flat area and a bending area which is connected with the flat area and is bent relative to the flat area, a plurality of pixel units are arranged in the flat area and the bending area, and each pixel unit comprises a plurality of sub-pixels; at least one sub-pixel in the bending region is provided with a light filter which is used for absorbing part of light emitted by the corresponding sub-pixel and facing one side of the flat region. According to the method, the filter element is arranged on the sub-pixel of the bending region, so that the filter element can be used for absorbing partial light emitted from one side of the sub-pixel towards the flat region, the light-emitting chromatic aberration between the bending region and the flat region is reduced, and the use experience of a user is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a method for manufacturing the display panel, and a display device.
Background
At present, a display panel has been widely used in electronic devices (for example, mobile phones, tablet computers, electronic books, and navigation devices), wherein an Organic Light-Emitting Diode (OLED) has been increasingly used in the display panel due to its low power consumption, high color saturation, wide viewing angle, thin thickness, flexibility, and other advantages.
Along with the development of technology, electronic devices have been developed in the directions of larger display areas, lighter, thinner, more portable, etc.; in order to break through the limitation of the size of the electronic device on the display area, there have been proposals such as curved screens, folded screens or curled screens in the related art. The electronic equipment can have a larger display area under a smaller carrying size by the scheme.
However, because the light-emitting spectrum and the intensity of the OLED display panel are mainly modulated by the microcavity structure, when the human eyes look forward and look sideways, the cavity length of the microcavity structure is different, so that the light-emitting color of the bending region on the display panel has chromatic aberration compared with the light-emitting color of the flat region, and the use experience of the user is affected.
Disclosure of Invention
In order to overcome the above-mentioned defect under the prior art, an object of the present application is to provide a display panel, a manufacturing method of the display panel and a display device, where the display panel of the present application can reduce the chromatic aberration of light emitted between the bending area and the flat area, which is beneficial to improving the use experience of users.
An embodiment of the application provides a display panel, which comprises a flat area and a bending area connected with the flat area and bent relative to the flat area, wherein a plurality of pixel units are arranged in the flat area and the bending area, and each pixel unit comprises a plurality of sub-pixels;
and at least one sub-pixel in the bending region is provided with a light filter, and the light filter is used for absorbing partial light emitted by the corresponding sub-pixel and facing one side of the flat region.
In the display panel described above, optionally, the filter is located on a side of the corresponding sub-pixel facing the flat area, and the height of the filter is higher than the height of the sub-pixel.
In the display panel described above, optionally, the optical filters are located around the corresponding sub-pixels, and the height of the optical filters is higher than the height of the sub-pixels.
In the display panel described above, optionally, an opening area is disposed above the sub-pixel, and the filter part extends above the sub-pixel to form the opening area.
The display panel as described above, optionally, the sub-pixels comprise green sub-pixels, and the respective filters comprise green filters;
alternatively, the sub-pixels include blue sub-pixels, and the respective filters include blue filters;
alternatively, the sub-pixels include a green sub-pixel and a blue sub-pixel, and the respective filters include a green filter and a blue filter.
As described above, in the display panel, if the transmittance of the green filter element when the thickness of the curved region in the direction toward the flat region is d is T, the thickness of the green filter element satisfies: e (f x T) g=a b c;
wherein a is the brightness of the red sub-pixel in the flat region;
b is the brightness of the green sub-pixel in the flat area;
c is the brightness of the blue sub-pixel in the flat area;
e is the brightness of the red sub-pixel in the bending region;
f is the brightness of the green sub-pixel in the bending region;
g is the brightness of the blue sub-pixel in the bending region.
As described above, in the display panel, if the transmittance of the blue filter is T1 when the thickness of the curved region in the direction toward the flat region is d, the thickness of the blue filter satisfies: e: f (g×t1) =a: b: c;
wherein a is the brightness of the red sub-pixel in the flat region;
b is the brightness of the green sub-pixel in the flat area;
c is the brightness of the blue sub-pixel in the flat area;
e is the brightness of the red sub-pixel in the bending region;
f is the brightness of the green sub-pixel in the bending region;
g is the brightness of the blue sub-pixel in the bending region.
In the display panel described above, the thickness of the filter in the direction of the curved region toward the flat region is optionally 2 μm or less.
Another embodiment of the present application provides a method for manufacturing a display panel, including:
providing a flexible substrate;
preparing a plurality of pixel units on the flexible substrate, wherein each pixel unit comprises a plurality of sub-pixels;
preparing a filter layer on the flexible substrate, so that the filter layer covers a plurality of pixel units;
dividing a flat area and a bending area on the flexible substrate;
etching the filter layer to obtain a filter, wherein the filter is arranged on one side, facing the flat area, of at least one sub-pixel in the bending area;
packaging the flexible substrate;
and bending the display panel according to the divided flat area and the bending area.
A further embodiment of the present application provides a display device including a display panel as described in any one of the above.
The application provides a display panel, a manufacturing method of the display panel and a display device, wherein the display panel comprises a flat area and a bending area which is connected with the flat area and is bent relative to the flat area, a plurality of pixel units are arranged in the flat area and the bending area, and each pixel unit comprises a plurality of sub-pixels; at least one sub-pixel in the bending region is provided with a light filter which is used for absorbing part of light emitted by the corresponding sub-pixel and facing one side of the flat region. According to the method, the filter element is arranged on the sub-pixel of the bending region, so that the filter element can be used for absorbing partial light emitted from one side of the sub-pixel towards the flat region, the light-emitting chromatic aberration between the bending region and the flat region is reduced, and the use experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a related art display panel;
FIG. 2 is a diagram showing a state of use of a display panel according to the related art;
FIG. 3 is a schematic diagram of a display panel according to an embodiment of the present disclosure;
FIG. 4 is a usage state diagram of a display panel according to an embodiment of the present disclosure;
FIG. 5 is a top view of a sub-pixel with a filter according to one embodiment of the present disclosure;
FIG. 6 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present disclosure;
fig. 7 (a) -fig. 7 (e) are schematic diagrams illustrating steps in the manufacturing process of the display panel according to an embodiment of the present application.
Reference numerals:
100-a flexible substrate; 101-a flat region; 102-bending zone; 103-human eye;
200-pixel units; 210-red subpixels; 220-green subpixels; 230-blue subpixels;
300-packaging layer;
400-a flexible substrate; 401-flat region; 402-a bending zone; 403-human eye;
500-pixel units; 510-red subpixels; 520-green sub-pixels; 530-blue subpixels; 540-an open area;
600-packaging layer;
700-filter.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments.
All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. The following embodiments and features of the embodiments may be combined with each other without conflict.
Along with the development of technology, electronic devices have been developed in the directions of larger display areas, lighter, thinner, more portable, etc.; in order to break through the limitation of the size of the electronic device on the display area, there have been proposals such as curved screens, folded screens or curled screens in the related art. The electronic equipment can have a larger display area under a smaller carrying size by the scheme.
However, because the light-emitting spectrum and the intensity of the OLED display panel are mainly modulated by the microcavity structure, when the human eyes look forward and look sideways, the cavity length of the microcavity structure is different, so that the light-emitting color of the bending region on the display panel has chromatic aberration compared with the light-emitting color of the flat region, and the use experience of the user is affected. The bending area and the flat area are two areas of the display panel which are positioned at different relative positions with human eyes in a use state; the flat area is an area perpendicular to the line of sight of the human eye in the use state, and the curved area is an area inclined to the line of sight of the human eye in the use state, and the curved area can be a straight line or an arc line.
Fig. 1 is a schematic view of a related art display panel; FIG. 2 is a diagram showing a state of use of a display panel according to the related art; please refer to fig. 1-2. In the related art, the display panel includes a flexible substrate 100, a plurality of pixel units 200 disposed on the flexible substrate 100, and an encapsulation layer 300 encapsulating the pixel units 200, each of the pixel units 200 includes a plurality of sub-pixels, for example, may include a red sub-pixel 210, a green sub-pixel 220, and a blue sub-pixel 230. The display panel may be further divided into a flat region 101 and a curved region 102 according to an external shape (the flat region 101 and the curved region 102 are defined by a dotted line in fig. 1 and 2), wherein the flat region 101 and the curved region 102 are connected to each other, a bending angle of the curved region 102 with respect to the flat region 101 may be selected according to a need, and a plurality of pixel units 200 are disposed in each of the flat region 101 and the curved region 102.
With continued reference to fig. 2, the line of sight of the human eye 103 is generally perpendicular to the flat area 101 and forms an acute angle with the curved area 102 when the display panel is in use. At this time, the light emitted from the red sub-pixel 210, the light emitted from the green sub-pixel 220 and the light emitted from the blue sub-pixel 230 in the flat region 101 are mixed to form white light; the light emitted from the red sub-pixel 210, the light emitted from the green sub-pixel 220, and the light emitted from the blue sub-pixel 230 in the bending region are polarized light (due to the light emitted from the green sub-pixel 220 and/or the light emitted from the blue sub-pixel 230, the mixed light is polarized light) due to the fact that the microcavity cavity length is increased (the microcavity cavity length is increased from vertical to inclined). Therefore, the display quality of the display panel is affected, and the use experience of a user is reduced; prolonged use can also cause damage to the human eye.
In view of this, the present application aims to provide a display panel, a manufacturing method of the display panel and a display device, where the display panel of the present application can reduce the chromatic aberration of light emitted between the curved area and the flat area on the display panel, which is beneficial to improving the use experience of the user.
The following detailed description of the present application will be presented in conjunction with the accompanying drawings to enable one skilled in the art to more fully understand the present application.
Example 1
FIG. 3 is a schematic diagram of a display panel according to an embodiment of the present disclosure; fig. 4 is a usage state diagram of a display panel according to an embodiment of the present application.
Referring to fig. 3-4, the present embodiment provides a display panel, which includes a flat area 401 and a curved area 402 connected with the flat area 401 and curved relative to the flat area 401, wherein a plurality of pixel units 500 are disposed in each of the flat area 401 and the curved area 402, and each pixel unit 500 includes a plurality of sub-pixels; at least one sub-pixel in the bending region 402 is provided with a light filter 700, and the light filter 700 is used for absorbing part of light emitted by the corresponding sub-pixel towards one side of the flat region 401.
Specifically, as shown in fig. 3, the display panel of the present embodiment includes a flexible substrate 400, a plurality of pixel units 500 disposed on the flexible substrate 400, and a package layer 600 for packaging the pixel units 500 on the flexible substrate 400, wherein each pixel unit 500 includes a plurality of sub-pixels, and the pixel unit 500 in the present embodiment may include a red sub-pixel 510, a green sub-pixel 520, and a blue sub-pixel 530.
In this embodiment, a partial region on the display panel is bent, so that the display panel forms a flat region 401 and a curved region 402 (the flat region 401 and the curved region 402 are bounded by a broken line in fig. 3 and 4). The flat area is an area perpendicular to the sight line of the human eye in the use state, and the curved area is an area inclined to the sight line of the human eye in the use state, and the curved area can be straight or arc. The optical filter 700 is disposed on at least one sub-pixel in the bending region 402, specifically may be disposed on a sub-pixel with a larger proportion of light output intensity, so as to absorb part of the light output from the sub-pixel towards one side of the flat region 401, so that the light output intensity of three sub-pixels in the pixel unit 500 in the bending region is substantially consistent, thereby preventing the light output from generating color cast, improving the use experience of the user, and being beneficial to protecting the eyes of the user.
With continued reference to fig. 4, when the display panel of the present embodiment is used, the line of sight of the user's eyes 403 is generally perpendicular to the flat area 401 and forms an acute angle with the curved area 402. The light emitted from the red sub-pixel 510, the light emitted from the green sub-pixel 520 and the light emitted from the blue sub-pixel 530 in the flat region 401 are mixed to form white light; since the light output intensity of the green sub-pixel 520 in the curved region is larger than the light output intensity of the red sub-pixel 510 and the light output intensity of the blue sub-pixel 530, the filter 700 (in this case, a green filter) is disposed on the green sub-pixel 520. The filter 700 absorbs a portion of the light emitted from the green sub-pixel 520 toward the flat area 401, so that the light emitted from the red sub-pixel 510, the light emitted from the green sub-pixel 520, and the light emitted from the blue sub-pixel 530, which enter the human eye 403, are mixed to form white light.
Alternatively, the sub-pixels of the present embodiment include green sub-pixels, and the corresponding filter 700 includes a green filter; alternatively, the sub-pixels include blue sub-pixels, and the corresponding filter 700 includes a blue filter; alternatively, the subpixels include a green subpixel and a blue subpixel, and the corresponding filter 700 includes a green filter and a blue filter.
It should be noted that, in fig. 4, only the example in which the light output intensity of the green sub-pixel 510 is large is taken as an example, and in other possible embodiments, it is also possible that the light output intensity of the blue sub-pixel 530 is large, and the filter 700 is disposed above the blue sub-pixel 530; it is also possible that the light output intensity of the green sub-pixel 510 and the light output intensity of the blue sub-pixel 530 are both larger, and the filter 700 is disposed above the green sub-pixel 510 and the blue sub-pixel 530 at the same time.
As can be seen from the above description, in this embodiment, the filter 700 is disposed on the sub-pixel of the bending region 402, so that the filter 700 can be used to absorb part of the light emitted from the sub-pixel towards one side of the flat region, thereby reducing the chromatic aberration of the light emitted between the bending region 402 and the flat region 401 and improving the user experience. The damage to human eyes can be reduced when the display panel has no chromatic aberration, thereby being beneficial to protecting the eyesight of users.
In an alternative embodiment, the filter 700 of this embodiment is located on the side of the corresponding sub-pixel facing the flat region 401, and the height of the filter 700 is higher than the height of the sub-pixel.
The filter 700 is disposed on the side of the sub-pixel facing the flat region 401, and the height of the filter 700 is higher than that of the sub-pixel, so that the filter can shield the light emitted from the side of the sub-pixel facing the flat region 401, the absorption efficiency of the filter 700 is ensured, and the light leakage phenomenon is prevented.
FIG. 5 is a top view of a sub-pixel with a filter 700 according to one embodiment of the present disclosure; in another alternative embodiment, as shown in fig. 3 and 5, the optical filter 700 of the present embodiment is located around the corresponding sub-pixel, and the height of the optical filter 700 is higher than the height of the sub-pixel. Further, an opening area is disposed above the sub-pixel, and the filter 700 extends partially above the sub-pixel to form the opening area.
In addition to the effect of ensuring the absorption efficiency of the filter 700 and preventing the light leakage, the present embodiment can also keep the complete opening area above the sub-pixel, so that when the human eye looks at the bending area 402, the bending area 402 can keep white light, and color cast cannot occur due to the decrease of the light intensity of a certain sub-pixel.
Further, assuming that the transmittance of the green filter is T when the thickness of the curved region 402 in the direction toward the flat region 401 is d, the thickness of the green filter satisfies: e: f: T: g=a: b: c;
where a is the brightness of the red subpixel in the flat area 401;
b is the brightness of the green sub-pixel in the flat region 401;
c is the brightness of the blue subpixel in the flat area 401;
e is the brightness of the red subpixel in curved area 402;
f is the brightness of the green subpixel in the curved area 402;
g is the brightness of the blue subpixel in curved area 402.
The brightness of the pixel can be measured by a special instrument, and the transmittance of the green filter can be obtained by the above formula, so that the thickness of the green filter corresponding to the transmittance in the direction of the bending region 402 toward the flat region 401 can be obtained.
Further, assuming that the transmittance of the blue filter is T1 when the thickness of the curved region 402 in the direction toward the flat region 401 is d, the thickness of the blue filter satisfies: e: f: g t1=a: b: c;
where a is the brightness of the red subpixel in the flat area 401;
b is the brightness of the green sub-pixel in the flat region 401;
c is the brightness of the blue subpixel in the flat area 401;
e is the brightness of the red subpixel in curved area 402;
f is the brightness of the green subpixel in the curved area 402;
g is the brightness of the blue subpixel in curved area 402.
The brightness of the pixel can be measured by a special instrument, and the transmittance of the blue filter can be obtained by the formula, so that the thickness of the blue filter corresponding to the transmittance in the direction from the bending region 402 to the flat region 401 can be obtained.
Preferably, the thickness of the filter 700 in the direction of the curved region 402 toward the flat region 401 in this embodiment is 2 μm or less.
Example two
FIG. 6 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present disclosure; fig. 7 (a) -fig. 7 (e) are schematic diagrams illustrating steps in the manufacturing process of the display panel according to an embodiment of the present application.
Referring to fig. 6, fig. 7 (a) -fig. 7 (e), the present embodiment provides a method for manufacturing a display panel, which starts from step S101 and step S102, and the corresponding structure is shown in fig. 7 (a).
Step S101, providing a flexible substrate.
As shown in fig. 7 (a), the flexible substrate 400 of the present embodiment may be made of Polyimide (PI) or the like.
Step S102, preparing a plurality of pixel units on a flexible substrate, wherein each pixel unit comprises a plurality of sub-pixels.
In this embodiment, each pixel unit 500 includes a red sub-pixel 510, a green sub-pixel 520, and a blue sub-pixel 530.
After the above steps S101 and S102 are performed, steps S103 and S104 may be continuously performed, and the corresponding structure is shown in fig. 7 (b).
Step S103, preparing a filter layer on the flexible substrate, so that the filter layer covers the plurality of pixel units 500.
In this embodiment, the filter layer may be entirely coated on the flexible substrate 400, that is, the projection of the filter layer coincides with the projection of the flexible substrate 400.
Step S104, a flat region 401 and a curved region 402 are divided on the flexible substrate.
The flexible substrate 400 may be divided into a flat region 401 and a curved region 402 according to the dotted line shown in fig. 7 (b) for a subsequent etching work.
After the above steps S103 and S104 are performed, step S105 may be continued, and the corresponding structure is shown in fig. 7 (c).
In step S105, the filter layer is etched to obtain the filter 700, where at least one sub-pixel of the filter 700 disposed in the bending region 402 faces the side of the flat region 401.
In this embodiment, steps such as exposure and development are required before etching the green light sheet layer, which will not be described in detail in this embodiment. The filter 700 of this embodiment preferably surrounds the corresponding sub-pixel after etching is completed.
After the step S105 is performed, the step S106 may be performed continuously, and the corresponding structure is shown in fig. 7 (d).
And S106, packaging the flexible substrate.
The encapsulation layer 600 in this embodiment may adopt a structure composed of an inorganic film layer, an organic film layer, and an inorganic film layer which are stacked.
After the step S106 is performed, the step S107 may be performed continuously, and the corresponding structure is shown in fig. 7 (e).
Step S107, bending the display panel according to the divided flat area and the bending area. After bending, the display panel of the first embodiment is obtained.
In this embodiment, the filter 700 is disposed on the sub-pixel of the bending region 402, so that the filter 700 can be used to absorb part of the light emitted from the sub-pixel towards one side of the flat region, thereby reducing the chromatic aberration of the light emitted between the bending region 402 and the flat region 401 and improving the user experience. The damage to human eyes can be reduced when the display panel has no chromatic aberration, thereby being beneficial to protecting the eyesight of users.
Example III
The present embodiment provides a display device including the display panel of the first embodiment.
The display device of the embodiment is provided with the display panel of the first embodiment, so that the chromatic aberration of light emission between the bending area and the flat area on the display panel can be reduced, and the use experience of a user is improved.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in the description of the present application, the terms "first," "second," and the like are merely used for convenience in describing the various components and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the description of the present application, descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this application, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. The display panel is characterized by comprising a flat area and a bending area which is connected with the flat area and is bent relative to the flat area, wherein a plurality of pixel units are arranged in the flat area and the bending area, and each pixel unit comprises a plurality of sub-pixels;
a light filter is arranged on at least one sub-pixel in the bending region, and the light filter is used for absorbing partial light emitted by the corresponding sub-pixel and facing one side of the flat region;
the subpixels include green subpixels, and the filter includes a green filter;
alternatively, the subpixels comprise blue subpixels, and the filter comprises a blue filter;
alternatively, the subpixels include a green subpixel and a blue subpixel, and the filter includes a green filter and a blue filter;
assuming that the transmittance of the green filter element when the thickness of the curved region in the direction toward the flat region is d is T, the thickness of the green filter element satisfies: e (f x T) g=a b c;
wherein a is the brightness of the red sub-pixel in the flat region;
b is the brightness of the green sub-pixel in the flat area;
c is the brightness of the blue sub-pixel in the flat area;
e is the brightness of the red sub-pixel in the bending region;
f is the brightness of the green sub-pixel in the bending region;
g is the brightness of the blue sub-pixel in the bending region;
assuming that the transmittance of the blue filter is T1 when the thickness of the curved region in the direction toward the flat region is d, the thickness of the blue filter satisfies: e: f (g×t1) =a: b: c;
wherein a is the brightness of the red sub-pixel in the flat region;
b is the brightness of the green sub-pixel in the flat area;
c is the brightness of the blue sub-pixel in the flat area;
e is the brightness of the red sub-pixel in the bending region;
f is the brightness of the green sub-pixel in the bending region;
g is the brightness of the blue sub-pixel in the bending region.
2. The display panel of claim 1, wherein the filter is located on a side of the corresponding sub-pixel facing the flat region, and a height of the filter is higher than a height of the sub-pixel.
3. The display panel of claim 1, wherein the filters are located around the corresponding sub-pixels, and the height of the filters is higher than the height of the sub-pixels.
4. A display panel according to claim 3, wherein an open area is provided above the sub-pixels, the filter portion extending above the sub-pixels to form the open area.
5. The display panel according to claim 1, wherein a thickness of the filter in a direction of the curved region toward the flat region is 2 μm or less.
6. A method for manufacturing a display panel, applied to the display panel according to any one of claims 1 to 5, comprising:
providing a flexible substrate;
preparing a plurality of pixel units on the flexible substrate, wherein each pixel unit comprises a plurality of sub-pixels;
preparing a filter layer on the flexible substrate, so that the filter layer covers a plurality of pixel units;
dividing a flat area and a bending area on the flexible substrate;
etching the filter layer to obtain a filter, wherein the filter is arranged on one side, facing the flat area, of at least one sub-pixel in the bending area;
packaging the flexible substrate;
and bending the display panel according to the divided flat area and the bending area.
7. A display device comprising the display panel according to any one of claims 1-5.
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| CN109768180A (en) * | 2018-12-20 | 2019-05-17 | 华映科技（集团）股份有限公司 | Oled substrate, the production method of oled substrate and flexible display apparatus |
| CN111564568A (en) * | 2020-05-18 | 2020-08-21 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111863914A (en) * | 2020-07-28 | 2020-10-30 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112038369A (en) * | 2020-08-20 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN109768180A (en) * | 2018-12-20 | 2019-05-17 | 华映科技（集团）股份有限公司 | Oled substrate, the production method of oled substrate and flexible display apparatus |
| CN111564568A (en) * | 2020-05-18 | 2020-08-21 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111863914A (en) * | 2020-07-28 | 2020-10-30 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112038369A (en) * | 2020-08-20 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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