CN114236891B - Display panel, driving method thereof and display device - Google Patents
Display panel, driving method thereof and display device Download PDFInfo
- Publication number
- CN114236891B CN114236891B CN202210112467.XA CN202210112467A CN114236891B CN 114236891 B CN114236891 B CN 114236891B CN 202210112467 A CN202210112467 A CN 202210112467A CN 114236891 B CN114236891 B CN 114236891B
- Authority
- CN
- China
- Prior art keywords
- peep
- color resistance
- proof
- color
- display panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel and a display device, relates to the technical field of display, and is used for enabling the display panel to have a large-visual-angle peep-proof function. The peep-proof display area of the display panel comprises a first peep-proof color resistance layer and a second peep-proof color resistance layer; the first peep-proof color resistance layer and the second peep-proof color resistance layer comprise a first color resistance unit and a second color resistance unit which are arranged along a second direction; along a first direction, a first color resistance unit in the first peep-proof color resistance layer and a first color resistance unit in the second peep-proof color resistance layer are not overlapped, and a second color resistance unit in the first peep-proof color resistance layer and a second color resistance unit in the second peep-proof color resistance layer are not overlapped; along a preset direction, the first color resistance unit in the first peeping-prevention color resistance layer and the first color resistance unit in the second peeping-prevention color resistance layer are at least partially overlapped, and the second color resistance unit in the first peeping-prevention color resistance layer and the second color resistance unit in the second peeping-prevention color resistance layer are at least partially overlapped; the preset direction intersects the first direction.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel, a driving method thereof, and a display device.
Background
With the popularization of electronic products and the increasing importance of the public to privacy, when users use electronic products such as mobile phones or notebook computers in public places such as libraries or cafes, it is desirable that the content displayed by the electronic products is visible only in a certain viewing angle range, so as to prevent others except the users themselves from seeing, i.e., it is desirable that the electronic products have a wide viewing angle peep-proof function.
Disclosure of Invention
The embodiment of the invention provides a display panel, a driving method thereof and a display device, which are used for enabling the display panel to have a large-visual-angle peep-proof function.
In one aspect, an embodiment of the present invention provides a display panel, including:
the peep-proof display area comprises peep-proof pixels, a first peep-proof color resistance layer and a second peep-proof color resistance layer, wherein the first peep-proof color resistance layer and the second peep-proof color resistance layer are arranged along a first direction, and the first direction is perpendicular to a plane where the display panel is located;
the first peep-proof color resistance layer and the second peep-proof color resistance layer comprise a first color resistance unit and a second color resistance unit which are arranged along a second direction, and the second direction is parallel to the plane where the display panel is located; along the first direction, the first color resistance unit in the first peep-proof color resistance layer and the first color resistance unit in the second peep-proof color resistance layer are not overlapped, and the second color resistance unit in the first peep-proof color resistance layer and the second color resistance unit in the second peep-proof color resistance layer are not overlapped; the first color resistance unit comprises a red color resistance; the second color resistance unit comprises a green color resistance; alternatively, the second color resist unit includes a blue color resist; along a preset direction, the first color resistance unit in the first peep-proof color resistance layer and the first color resistance unit in the second peep-proof color resistance layer at least partially overlap, and the second color resistance unit in the first peep-proof color resistance layer and the second color resistance unit in the second peep-proof color resistance layer at least partially overlap; the preset direction intersects the first direction.
On the other hand, the embodiment of the invention provides a driving method applied to the display panel, which is characterized in that the display panel comprises a peep-proof mode;
the driving method includes:
and in the peep-proof mode, controlling the peep-proof pixels to be lightened.
In still another aspect, an embodiment of the present invention provides a display device including the display panel described above.
According to the display panel and the display device provided by the embodiment of the invention, the peep-proof display area is arranged in the display panel, and the peep-proof pixels, the first peep-proof color resistance layer and the second peep-proof color resistance layer are arranged in the peep-proof display area, so that the color resistance units with the same light-emitting color in the first peep-proof color resistance layer and the second peep-proof color resistance layer are at least partially overlapped in the preset direction, when the peep-proof pixels are lightened, light rays transmitted along the preset direction and emitted by the peep-proof pixels can sequentially pass through the first peep-proof color resistance layer and the second peep-proof color resistance layer to be emitted, and the light rays emitted by the peep-proof pixels interfere the light rays emitted by the display pixels, so that a user with a sight line direction parallel to the preset direction cannot see the display picture of the display panel clearly, and the peep-proof effect under a large viewing angle corresponding to the preset direction is realized. Meanwhile, the embodiment of the invention also enables the color resistance units with different light-emitting colors in the first peep-proof color resistance layer and the second peep-proof color resistance layer to be at least partially overlapped in the first direction, when the peep-proof pixels are lightened, the light rays transmitted along the first direction and sent out by the peep-proof pixels cannot be emitted through the first peep-proof color resistance layer and the second peep-proof color resistance layer, and the light rays emitted by the display pixels can be undisturbed, so that the user with the parallel sight line direction and the first direction can clearly see the display picture of the display panel while realizing the peep-proof with the large visual angle, and the display effect under the positive visual angle corresponding to the first direction is ensured not to be influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an enlarged schematic view of a partial area of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a peep-proof display area of a display panel according to an embodiment of the present invention;
FIG. 3 is a graph showing transmittance spectrum of a first color resist unit and a second color resist unit according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a peep-proof display area of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a peep-proof display area of another display panel according to an embodiment of the invention;
fig. 6 is a schematic cross-sectional view of a normal display area of a display panel according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a display device according to an embodiment of the invention.
Detailed Description
For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, etc. may be used in embodiments of the present invention to describe the privacy color blocking layers, these privacy color blocking layers should not be limited to these terms. These terms are only used to distinguish the various privacy color resists from one another. For example, the first privacy color resist layer may also be referred to as a second privacy color resist layer, and similarly, the second privacy color resist layer may also be referred to as a first privacy color resist layer without departing from the scope of embodiments of the present invention.
An embodiment of the present invention provides a display panel, as shown in fig. 1 and fig. 2, fig. 1 is an enlarged schematic view of a partial area of the display panel provided by the embodiment of the present invention, and fig. 2 is a schematic cross-sectional view of a peep-proof display area of the display panel provided by the embodiment of the present invention, where the display panel includes a peep-proof display area A1 and a normal display area A2. The peep-proof display area A1 includes peep-proof pixels P1. The normal display area A2 includes display pixels P2. For example, in the embodiment of the present invention, the operation of the display pixel P2 and the peep-proof pixel P1 may be independent from each other.
As shown in fig. 2, the peep-proof display area A1 further includes at least a first peep-proof color-blocking layer 11 and a second peep-proof color-blocking layer 12. The first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12 are arranged along a first direction h1, and the first direction h1 is perpendicular to the plane of the display panel. The first direction h1 corresponds to a front view angle of the display panel. The first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12 each comprise a first color resistance unit 100 and a second color resistance unit 200 which are arranged along a second direction h2, and the second direction h2 is parallel to the plane of the display panel. That is, the first direction h1 and the second direction h2 are perpendicular to each other.
When the display panel is put into use, the light-emitting side of the display panel can be disposed on the side of the second peep-proof color-blocking layer 12 away from the first peep-proof color-blocking layer 11, i.e. the user is located on the side of the second peep-proof color-blocking layer 12 away from the first peep-proof color-blocking layer to view the display picture of the display panel.
When the light emitting side of the display panel is disposed on the side of the second peep-proof color-blocking layer 12 away from the first peep-proof color-blocking layer 11, as shown in fig. 2, for example, the embodiment of the invention may set the peep-proof pixel P1 on the side of the first peep-proof color-blocking layer 11 away from the second peep-proof color-blocking layer 12, and the light emitted from the peep-proof pixel P1 may be emitted to the second peep-proof color-blocking layer 12 through the first peep-proof color-blocking layer 11 and be emitted to the display panel through the second peep-proof color-blocking layer 12.
In the embodiment of the present invention, along a preset direction h3 different from the first direction h1, color resistance units having the same light-emitting color in the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12 at least partially overlap. As shown in fig. 2, at least a portion of the first color resist units 100 in the first peep-preventing color resist layer 11 overlap with the first color resist units 100 in the second peep-preventing color resist layer 12, and at least a portion of the second color resist units 200 in the first peep-preventing color resist layer 11 overlap with the second color resist units 200 in the second peep-preventing color resist layer 12 along the preset direction h 3. In the embodiment of the present invention, the preset direction h3 intersects the first direction h 1. For example, the preset direction h3 may also intersect the second direction h 2. The preset direction h3 corresponds to a large viewing angle of the display panel.
The operation mode of the display panel includes a peep-proof mode. When the display panel is operated in the peep-proof mode, the peep-proof pixel P1 is controlled to be turned on in addition to the display pixel P2. When the user views the display panel in a direction parallel to the preset direction h3, as shown in fig. 2, after the light transmitted along the preset direction h3 and sent by the peep-proof pixel P1 is directed to the first peep-proof color-blocking layer 11, a part of the light exits through the first color-blocking unit 100 in the first peep-proof color-blocking layer 11, and another part of the light exits through the second color-blocking unit 200 in the first peep-proof color-blocking layer 11. The light then continues to propagate toward the second privacy color stop layer 12. Since at least part of the first color resist units 100 in the first peep-proof color resist layer 11 overlap with the first color resist units 100 in the second peep-proof color resist layer 12 in the preset direction h3, the light emitted from the first color resist units 100 in the first peep-proof color resist layer 11 can continue to pass through the first color resist units 100 in the second peep-proof color resist layer 12, and the color of the emitted light is the first color allowed to pass through by the first color resist units 100. Similarly, the light emitted from the second color blocking unit 200 in the first peep-proof color blocking layer 11 can continue to be emitted from the second color blocking unit 200 in the second peep-proof color blocking layer 12, and the color of the emitted light is the second color allowed to pass through by the second color blocking unit 200. It can be seen that, when the line of sight direction of the user viewing the display panel is parallel to the preset direction h3, the light emitted by the peep-proof pixel P1 can be emitted from the second peep-proof color-blocking layer 12. When the viewing direction of the user watching the display panel is parallel to the preset direction h3, the light emitted through the peep-proof display area A1 comprises light of a first color and light of a second color. The light rays can interfere the light rays emitted by the display pixel P2, so that a user observes a blurred picture, and the peep-proof effect under the large viewing angle corresponding to the preset direction h3 is achieved.
In the embodiment of the present invention, along the first direction h1, the color blocking units with different light-emitting colors in the first peep-proof color blocking layer 11 and the second peep-proof color blocking layer 12 at least partially overlap. Illustratively, with continued reference to fig. 2, along the first direction h1, at least a portion of the first color resist units 100 in the first privacy color resist layer 11 overlap with the second color resist units 200 in the second privacy color resist layer 12, and at least a portion of the second color resist units 200 in the first privacy color resist layer 11 overlap with the first color resist units 100 in the second privacy color resist layer 12.
When the display panel is operated in the peep-proof mode, the peep-proof pixel P1 is turned on. When the user views the display panel in a direction parallel to the first direction h1, as shown in fig. 2, after the light transmitted along the first direction h1 and emitted by the peep-proof pixel P1 is directed to the first peep-proof color-blocking layer 11, a part of the light exits through the first color-blocking unit 100 in the first peep-proof color-blocking layer 11, and another part of the light exits through the second color-blocking unit 200 in the first peep-proof color-blocking layer 11. The light then continues to propagate toward the second privacy color stop layer 12. Since at least a portion of the first color resist units 100 in the first peep-proof color resist layer 11 overlap with the second color resist units 200 in the second peep-proof color resist layer 12 along the first direction h1, the light emitted from the first color resist units 100 in the first peep-proof color resist layer 11 cannot continue to be emitted from the second color resist units 200 in the second peep-proof color resist layer 12. Similarly, the light emitted from the second color resist unit 200 in the first peep-proof color resist layer 11 cannot be emitted from the first color resist unit 100 in the second peep-proof color resist layer 12. It can be seen that, when the viewing direction of the user viewing the display panel is parallel to the first direction h1, the light emitted by the peep-proof pixel P1 cannot exit from the second peep-proof color-blocking layer 12. Therefore, the light emitted by the display pixel P2 can be emitted to the eyes of the user without being interfered by the peep-proof pixel P1, so that the user can observe a clear picture, and normal display under the positive viewing angle corresponding to the first direction h1 is realized.
The operation mode of the display panel may also include a sharing mode, for example. When the display panel is operated in the sharing mode, the display pixel P2 is controlled to be lighted, and the peep-proof pixel P1 is controlled not to be lighted. In this way, no matter the user views the display panel in a direction of the line of sight parallel to the preset direction h3 or views the display panel in a direction of the line of sight parallel to the first direction h1, the light emitted by the display pixel P2 can be transmitted to the human eye without interference, so that the user sees a clear display screen.
As can be seen from the above analysis, in the display panel provided by the embodiment of the present invention, by setting the peep-proof display area A1 in the display panel and setting the peep-proof pixel P1, the first peep-proof color-resistant layer 11 and the second peep-proof color-resistant layer 12 in the peep-proof display area A1, the color-resistant units with the same light-emitting color in the first peep-proof color-resistant layer 11 and the second peep-proof color-resistant layer 12 at least partially overlap in the preset direction h3, so that when the peep-proof pixel P1 is turned on, the light transmitted along the preset direction h3 by the peep-proof pixel P1 can sequentially pass through the first peep-proof color-resistant layer 11 and the second peep-proof color-resistant layer 12 to emit light, so that the light emitted by the peep-proof pixel P1 interferes with the light emitted by the display pixel P2, and thus the user with the sight line direction parallel to the preset direction h3 cannot see the display screen of the display panel, and the peep-proof effect corresponding to the preset direction h3 under a large viewing angle can be achieved. Meanwhile, in the embodiment of the invention, the color resistance units with different light-emitting colors in the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12 are at least partially overlapped in the first direction h1, when the peep-proof pixel P1 is lightened, the light rays transmitted along the first direction h1 emitted by the peep-proof pixel P1 cannot be emitted through the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12, the light rays emitted by the display pixel P2 can be prevented from being interfered, so that a user with the sight line direction parallel to the first direction h1 can clearly see the display picture of the display panel, and the display effect under the positive viewing angle corresponding to the first direction h1 is ensured not to be influenced while the large-view angle peep-proof is realized.
It should be noted that, as shown in fig. 2, in the preset direction h3, the first color resist units 100 in the first peep-proof color resist layer 11 and the first color resist units 100 in the second peep-proof color resist layer 12 partially overlap, and the second color resist units 200 in the first peep-proof color resist layer 11 and the second color resist units 200 in the second peep-proof color resist layer 12 partially overlap; and in the first direction h1, the first color resist unit 100 in the first peep-proof color resist layer 11 and the first color resist unit 100 in the second peep-proof color resist layer 12 do not overlap, and the second color resist unit 200 in the first peep-proof color resist layer 11 and the second color resist unit 200 in the second peep-proof color resist layer 12 do not overlap.
Optionally, as shown in fig. 2, in the preset direction h3, the embodiment of the present invention may further enable the arbitrary position of the first color blocking unit 100 in the first peep-proof color blocking layer 11 to overlap the second color blocking unit 200 in the second peep-proof color blocking layer 12, enable the arbitrary position of the second color blocking unit 200 in the first peep-proof color blocking layer 11 to overlap the second color blocking unit 200 in the second peep-proof color blocking layer 12, and enable the arbitrary position of the first color blocking unit 100 in the first peep-proof color blocking layer 11 to overlap the second color blocking unit 200 in the second peep-proof color blocking layer 12, and enable the arbitrary position of the second color blocking unit 200 in the first peep-proof color blocking layer 11 to overlap the first color blocking unit 100 in the second peep-proof color blocking layer 12. By the arrangement, the peeping prevention effect of the large visual angle can be optimized, and meanwhile, the display effect under the positive visual angle can be optimized.
For example, in the embodiment of the present invention, the area of the first color blocking unit 100 in the first peep-preventing color blocking layer 11 may be smaller than or equal to the area of the second color blocking unit 200 in the second peep-preventing color blocking layer 12, and the area of the second color blocking unit 200 in the first peep-preventing color blocking layer 11 may be smaller than or equal to the area of the first color blocking unit 100 in the second peep-preventing color blocking layer 12, and the orthographic projection of the first color blocking unit 100 in the first peep-preventing color blocking layer 11 on the plane where the second peep-preventing color blocking layer 12 is located may fall into the area where the second color blocking unit 200 in the second peep-preventing color blocking layer 12 is located, so that any position of the first color blocking unit 100 in the first peep-preventing color blocking layer 11 and the second color blocking unit 200 in the second peep-preventing color blocking layer 12 overlap in the first direction h 1. Similarly, in the embodiment of the present invention, the orthographic projection of the second color blocking unit 200 in the first peep-proof color blocking layer 11 on the plane where the second peep-proof color blocking layer 12 is located may fall into the area where the first color blocking unit 100 in the second peep-proof color blocking layer 12 is located, so that any position of the second color blocking unit 200 in the first peep-proof color blocking layer 11 and the first color blocking unit 100 in the second peep-proof color blocking layer 12 overlap in the first direction h1, so as to ensure that, in the peep-proof mode, light emitted by the peep-proof pixel P1 along the first direction h1 cannot be emitted through the first peep-proof color blocking layer 11 and the second peep-proof color blocking layer 12, ensure that light emitted by the display pixel P2 can not be interfered by the peep-proof pixel P1, ensure that in the peep-proof mode, a user can observe a clear picture when observing the display panel along the first direction h1, and ensure the display effect under the normal viewing angle.
It should be noted that, the arrangement and the area of the peep-proof pixel P1 and the display pixel P2 shown in fig. 1 are only schematic, and the arrangement and/or the area of the peep-proof pixel P1 and the display pixel P2 may be actually adjusted according to different design requirements, which is not limited in the embodiment of the present invention.
Alternatively, the preset direction h3 may be set according to the range of peep-proof angles required to be implemented by the display panel. For example, in the embodiment of the present invention, the included angle between the preset direction h3 and the first direction h1 may be greater than or equal to 30 °.
It should be noted that, in the embodiment of the present invention, the preset direction may include a plurality of different directions. The collection of the plurality of preset directions h3 forms the peep-proof angle range of the display panel provided by the embodiment of the invention. When the sight line direction of the user is positioned at any position within the peep-proof angle range, the user cannot see the display picture of the display panel clearly, and effective peep prevention can be achieved. Fig. 2 is schematically represented by the preset direction h3 comprising a first preset direction h31 and a second preset direction h 32. Wherein the first preset direction h31 and the second preset direction h32 are intersected with each other.
As shown in fig. 3, fig. 3 is a graph of transmittance spectra of a first color resist unit and a second color resist unit according to an embodiment of the invention, wherein the first color resist unit 100 has a first transmittance spectrum curve C1, and the second color resist unit 200 has a second transmittance spectrum curve C2. The integral area of the first transmittance spectrum curve C1 between the wavelength λ11 and the wavelength λ12 is S1, wherein the transmittance of the first color resistance unit 100 between the wavelength λ11 and the wavelength λ12 is greater than or equal to a first preset value. The integral area of the second transmittance spectrum curve C2 between the wavelength λ21 and the wavelength λ22 is S2, where the transmittance of the second color resistance unit 200 between the wavelength λ21 and the wavelength λ22 is greater than or equal to a second preset value. The integral area of the overlapping region of the first transmittance spectrum curve C1 and the second transmittance spectrum curve C2 is S. In the embodiment of the invention, S/S1 is less than or equal to 10 percent; and/or S/S2 is less than or equal to 10 percent. By the arrangement, the overlapping range of the transmittance spectrum curves of the first color resistance unit 100 and the second color resistance unit 200 can be small enough, so that most of the light transmitted through the first color resistance unit 100 can be blocked by the second color resistance unit 200 and cannot be transmitted, when the sight line direction of the user is parallel to the first direction h1, the light emitted by the peep-proof pixel P1 can be ensured not to transmit through the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12, the light emitted by the display pixel P2 is prevented from being interfered by the peep-proof pixel P1, and the user can be ensured to watch a clear picture participated in display by the display pixel P2.
Alternatively, the first preset value and the second preset value may be selected according to different design requirements, for example, the first preset value and the second preset value may be both 0.
Illustratively, the first color resist unit 100 includes a red color resist, and the second color resist unit 200 includes a green color resist. Alternatively, when the first color resist unit 100 is set to be red, the embodiment of the present invention may further enable the second color resist unit 200 to include blue color resist.
As shown in fig. 4, fig. 4 is a schematic cross-sectional view of a peep-proof display area of another display panel according to an embodiment of the invention, where the first peep-proof color-blocking layer 11 further includes a first black matrix 41, and the first black matrix 41 includes a plurality of openings 410. The first color resist unit 100 and the second color resist unit 200 in the first peep-proof color resist layer 11 are respectively located in different openings 410. In manufacturing the display panel, the entire black matrix layer may be formed, then the black matrix layer is etched to form the openings 410, and then the first color resist unit 100 and the second color resist unit 200 are manufactured in the different openings 410.
As shown in fig. 4, along the first direction h1, the first black matrix 41 at least partially overlaps the first color resist unit 100 and the second color resist unit 200 in the second peep-proof color resist layer 12, respectively. So set up, the partial light that follows the propagation of first direction h1 that peep-proof pixel P1 was emergent can be absorbed and can not follow first peep-proof color and hinder layer 11 outgoing after first black matrix 41, and then can ensure that this partial light can not go out through second peep-proof color and hinder layer 12. By adopting the arrangement mode, the light emitted by the peep-proof pixel P1 and transmitted along the first direction h1 is ensured not to be emitted through the second peep-proof color resistance layer 12 to interfere the display pixel P2, and meanwhile, the alignment precision requirements on the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12 can be reduced, so that the process difficulty of the display panel is reduced, and the process efficiency is improved.
As shown in fig. 4, a distance H is provided between the first peep-proof color blocking layer 11 and the second peep-proof color blocking layer 12 along a first direction H1; the shortest distance between two adjacent openings 410 in the first black matrix 41 is W 1 The width of the first color resist unit 100 in the first peep-proof color resist layer 11 is W 21 The width of the second color resist unit 200 in the first peep-proof color resist layer 11 is W 22 The width direction of the first color resist unit 100 and the width direction of the second color resist unit 200 are parallel to the plane of the display panel. Wherein:
(W 21 +W 22 +1.5W 1 )/tanθ max ≤H≤W 1 /2tanθ min (1)
wherein θ min For the minimum included angle theta between the preset direction h3 and the first direction h1 max Is the maximum included angle between the preset direction h3 and the first direction h 1. As shown in FIG. 4, tan. Theta min =W 1 /2H；tanθ max =(W 21 +W 22 +1.5W 1 )/H。
In designing the display panel, the peep-proof angle range may be set first, and then the size parameters of the first color resist unit 100, the second color resist unit 200, and the first black matrix 41 in the first peep-proof color resist layer 11 and the distance H between the first peep-proof color resist layer 11 and the second peep-proof color resist layer 12 may be determined according to formula (1).
Exemplary, the embodiment of the present invention can enable the first color resist unit 100 and the second color resist unit 100 in the first peep-proof color resist layer 11 toThe dichroic resistor units 200 have the same width. That is, let W 21 =W 22 。
As shown in fig. 2 and fig. 4, in the second peep-proof color resist layer 12, the shapes and areas of the first color resist unit 100 and the second color resist unit 200 may be the same. In this way, in the manufacturing process of the display panel, the same mask plate can be adopted to form the first color resistance unit 100 and the second color resistance unit 200 in the second peep-proof color resistance layer 12 respectively through translation, which is beneficial to reducing the process cost of the display panel. In the preparation of the display panel, taking the first color resist unit 100 in the second peep-proof color resist layer 12 as an example, the embodiment of the invention can align the hollowed-out portion of the mask with the region to be formed with the first color resist unit 100 in the display panel, after the material to be prepared with the first color resist unit 100 is formed in the set region, translate the mask, align the hollowed-out portion of the mask with the region to be formed with the second color resist unit 200 in the display panel, and then form the material to be prepared with the second color resist unit 200 in the set region through the hollowed-out portion.
For example, in the case of disposing the first peep-preventing color resist layer 11 and the second peep-preventing color resist layer 12, as shown in fig. 2 and fig. 4, in the first peep-preventing color resist layer 11, the first color resist unit 100 and the second color resist unit 200 may be alternately disposed. In the second peep-proof color resist layer 12, the first color resist unit 100 and the second color resist unit 200 may be alternately arranged. When the display panel is enabled to start the peep-proof mode, the peep-proof display area A1 can emit light with two different colors along the preset direction h3, so that the peep-proof display area A1 can interfere the light emitted from the normal display area A2 to a greater extent, and the peep-proof effect is enhanced.
Alternatively, as shown in fig. 5, fig. 5 is a schematic cross-sectional view of a peep-proof display area of another display panel according to an embodiment of the invention, where the third color resistance unit 300 may be further included in the first peep-proof color resistance layer 11 and the second peep-proof color resistance layer 12. Along the preset direction h3, the third color blocking unit 300 in the first peep-preventing color blocking layer 11 overlaps the third color blocking unit 300 in the second peep-preventing color blocking layer 12. When the display panel starts the peep-proof mode, part of the light transmitted along the preset direction h3 by the peep-proof pixel P1 can also sequentially pass through the third color-resisting units 300 in the first peep-proof color-resisting layer 11 and the second peep-proof color-resisting layer 12 to exit. So set up, can increase the colour kind number of the light of follow peep-proof display area A1 outgoing under the peep-proof mode, can carry out the interference to the light that display pixel P2 sent to a greater extent, be favorable to reinforcing peep-proof effect.
For example, with continued reference to fig. 5, along the first direction h1, the third color resist unit 300 in the second peep-proof color resist layer 12 overlaps the first color resist unit 100 or the second color resist unit 200 in the first peep-proof color resist layer 11. When the display panel is in the peep-proof mode, after a part of light transmitted along the first direction h1 from the peep-proof pixel P1 exits through the third color-resisting unit 300 in the first peep-proof color-resisting layer 11, the part of light can be directed to the first color-resisting unit 100 or the second color-resisting unit 200 in the second peep-proof color-resisting layer 12 and cannot exit. So set up, increase the colour kind number of the wide-angle light that follows peep-proof display area A1 and send out under peep-proof mode, carry out the interference to the light that display pixel P2 goes out to a greater extent, when reinforcing peep-proof effect, can also ensure that the light that peep-proof pixel P1 sent out along first direction h1 propagation can not go out, when the user observes the display panel with the sight that is on a parallel with first direction h1, can ensure that the light that display pixel P2 sent is not disturbed, guarantee that the user can observe clear picture under the front view angle that corresponds with first direction h 1.
As shown in fig. 6, fig. 6 is a schematic cross-sectional view of a normal display area of a display panel according to an embodiment of the present invention, where the normal display area A2 includes a display color-blocking layer 5, and the display color-blocking layer 5 is located on a side of the display pixel P2 near a light emitting side of the display panel. As shown in fig. 6, the display color resist layer 5 includes a second black matrix 42 and a display color resist unit 50. The second black matrix 42 includes a plurality of openings 420, and the display color resist unit 50 is located in the openings 420. Illustratively, the display color resist unit 50 includes the first color resist unit 100 and/or the second color resist unit 200 described above.
In the embodiment of the present invention, the first peep-proof color-blocking layer 11 and the display color-blocking layer 5 of the peep-proof display area A1 may be formed by the same process. Specifically, the first black matrix 41 in the first peep-proof color resist layer 11 and the second black matrix 42 in the display color resist layer 5 are manufactured synchronously, and the color resist units with the same light emitting color in the first peep-proof color resist layer 11 and the display color resist layer 5 are manufactured synchronously, so that the manufacturing process of the display panel is simplified.
The display panel provided by the embodiment of the invention can be a liquid crystal display panel. As shown in fig. 7, fig. 7 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention, where the display panel includes a color film substrate 61 and an array substrate 62 disposed opposite to each other along the first direction h1, and a liquid crystal layer 60 disposed between the color film substrate 61 and the array substrate 62.
Alternatively, the peep-proof pixel P1 includes a peep-proof pixel electrode 81 and a first thin film transistor 71 formed in the array substrate 62. The display pixel P2 includes a display pixel electrode 82 and a second thin film transistor 72 formed in the array substrate 62. The peep-proof pixel electrode 81 is located in the peep-proof display area A1. The display pixel electrode 82 is located in the normal display area A2.
The inventor finds that in the research process, in order to enable the electronic product to have the peep-proof effect at present, one method is to paste the peep-proof film on the display screen of the electronic product, and only black pictures can be seen in the peep-proof visual angle through the micro shutter structure of the peep-proof film. Another approach is to design glasses and displays that match each other, and only wearing glasses that match the displays can see the pictures displayed by the displays. Both methods can complicate the structure of the display screen, and after the display screen is designed, the display screen can only work in one mode, but can not make the display panel support the peep-proof mode and the sharing mode, and can not make the display panel switch between different working modes.
In the embodiment of the present invention, the peep-proof pixel electrode 81 and the display pixel electrode 82 may be independently driven. When the display panel works, the peep-proof pixel P1 can be switched between on and off only by adjusting the signal on the peep-proof pixel electrode 81, namely, the display panel can be conveniently switched between the peep-proof mode and the sharing mode, so that the user experience is greatly improved.
Illustratively, the privacy pixel P1 further includes a privacy common electrode. The display pixel P2 further includes a display common electrode. In the embodiment of the invention, the peep-proof common electrode and the display common electrode can be connected with each other so as to reduce the process complexity of the display panel. Alternatively, the peep-proof common electrode and the display common electrode may be disposed on the color film substrate 61 or the array substrate 62.
Optionally, when the peep-proof display area A1 is provided with a plurality of peep-proof pixels P1, the embodiment of the invention can enable the peep-proof pixel electrodes 81 of the peep-proof pixels P1 to be connected with each other, so that the peep-proof pixels P1 can work simultaneously, and the process complexity of the display panel is reduced.
For example, in the embodiment of the present invention, the first peep-proof color-blocking layer 11 may be disposed on the color film substrate 61 or the array substrate 62; and, the second peep-proof color resistance layer 12 is arranged on the color film substrate 61 or the array substrate 62.
Alternatively, the display color resist layer 5 may be disposed in the color film substrate 61.
For example, the display panel having the structure shown in fig. 7 may be matched with a backlight module to perform work. The backlight module is located at one side of the array substrate 62 away from the color film substrate 61. The backlight module may be a direct type structure or a side-in type structure, which is not limited in the embodiment of the present invention.
The embodiment of the invention also provides a driving method applied to the display panel, and the display modes of the display panel comprise a peep-proof mode and a sharing mode. The driving method provided by the embodiment of the invention comprises the following steps: in the peep-proof mode, both the peep-proof pixel P1 and the display pixel P2 are controlled to be turned on. In the sharing mode, the peep-proof pixel P1 is controlled not to be lighted, and the display pixel P2 is controlled to be lighted. The specific operation principle of the display panel in different modes is described in detail in the foregoing, and will not be described herein.
According to the driving method of the display panel, the peep-proof pixel P1 is switched between the on state and the off state, so that the display panel can be conveniently switched between the peep-proof mode and the sharing mode, and the user experience is greatly improved.
The embodiment of the invention further provides a display device, as shown in fig. 8, fig. 8 is a schematic diagram of the display device according to the embodiment of the invention, where the display device includes the display panel 1000 described above. The specific structure of the display panel 1000 has been described in detail in the above embodiments, and will not be described here again. Of course, the display device shown in fig. 8 is only a schematic illustration, and the display device may be any electronic apparatus having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (14)
1. A display panel, comprising:
the peep-proof display area comprises peep-proof pixels, a first peep-proof color resistance layer and a second peep-proof color resistance layer, wherein the first peep-proof color resistance layer and the second peep-proof color resistance layer are arranged along a first direction, and the first direction is perpendicular to a plane where the display panel is located;
the first peep-proof color resistance layer and the second peep-proof color resistance layer comprise a first color resistance unit and a second color resistance unit which are arranged along a second direction, and the second direction is parallel to the plane where the display panel is located; along the first direction, the first color resistance unit in the first peep-proof color resistance layer and the first color resistance unit in the second peep-proof color resistance layer are not overlapped, and the second color resistance unit in the first peep-proof color resistance layer and the second color resistance unit in the second peep-proof color resistance layer are not overlapped; the first color resistance unit comprises red color resistance, the second color resistance unit comprises green color resistance or the second color resistance unit comprises blue color resistance; along a preset direction, the first color resistance unit in the first peep-proof color resistance layer and the first color resistance unit in the second peep-proof color resistance layer at least partially overlap, and the second color resistance unit in the first peep-proof color resistance layer and the second color resistance unit in the second peep-proof color resistance layer at least partially overlap; the preset direction intersects the first direction.
2. The display panel of claim 1, wherein the display panel comprises,
the first color resistance unit is provided with a first transmittance spectrum curve, the integral area of the first transmittance spectrum curve between the wavelength lambda 11 and the wavelength lambda 12 is S1, and the transmittance of the first color resistance unit between the wavelength lambda 11 and the wavelength lambda 12 is larger than or equal to a first preset value;
the second color resistance unit is provided with a second transmittance spectrum curve, the integral area of the second transmittance spectrum curve between the wavelength lambda 21 and the wavelength lambda 22 is S2, and the transmittance of the first color resistance unit between the wavelength lambda 21 and the wavelength lambda 22 is more than or equal to a second preset value;
the integral area of the overlapping area of the first transmittance spectrum curve and the second transmittance spectrum curve is S;
S/S1 is less than or equal to 10 percent; and/or S/S2 is less than or equal to 10 percent.
3. The display panel of claim 1, further comprising:
the normal display area comprises display pixels, and the display pixels and the peep-proof pixels work independently.
4. The display panel of claim 1, wherein the display panel comprises,
the first peep-proof color resistance layer further comprises a first black matrix, the first black matrix comprises a plurality of openings, and the first color resistance unit and the second color resistance unit in the first peep-proof color resistance layer are respectively positioned in different openings;
along the first direction, the first black matrix at least partially overlaps the first color resistance unit and the second color resistance unit in the second peep-proof color resistance layer, respectively.
5. The display panel of claim 4, further comprising a normal display region, wherein the normal display region comprises a display color blocking layer, and wherein the first privacy color blocking layer and the display color blocking layer are formed by the same process.
6. The display panel of claim 4, wherein the display panel comprises,
a distance H is arranged between the first peep-proof color resistance layer and the second peep-proof color resistance layer along the first direction;
the shortest distance between two adjacent openings in the black matrix is W 1 ；
The width of the first color resistance unit in the first peep-proof color resistance layer is W 21 The width of the second color resistance unit in the first peep-proof color resistance layer is W 22 The width direction of the first color resistance unit and the width direction of the second color resistance unit are parallel to the plane of the display panel;
(W 21 +W 22 +1.5W 1 )/tanθ max ≤H≤W 1 /2tanθ min ；
wherein θ min For the minimum included angle theta between the preset direction and the first direction max And the maximum included angle between the preset direction and the first direction is set.
7. The display panel of claim 4, wherein the display panel comprises,
in the second peep-proof color resistance layer, the shapes and the areas of the first color resistance unit and the second color resistance unit are the same.
8. The display panel of claim 1, wherein the display panel comprises,
in the first peep-proof color resistance layer, the first color resistance units and the second color resistance units are alternately arranged;
in the second peep-proof color resistance layer, the first color resistance units and the second color resistance units are alternately arranged.
9. The display panel of claim 1, wherein the display panel comprises,
the first peep-proof color resistance layer and the second peep-proof color resistance layer further comprise a third color resistance unit;
and along the preset direction, the third color resistance unit in the first peep-proof color resistance layer at least partially overlaps with the third color resistance unit in the second peep-proof color resistance layer.
10. The display panel of claim 9, wherein the display panel comprises,
along the first direction, the third color resistance unit in the second peep-proof color resistance layer at least partially overlaps the first color resistance unit or the second color resistance unit in the first peep-proof color resistance layer.
11. The display panel of claim 1, wherein the display panel comprises,
the display panel comprises a color film substrate, an array substrate and a liquid crystal layer, wherein the color film substrate and the array substrate are oppositely arranged;
the first peep-proof color resistance layer is positioned on the color film substrate or the array substrate;
the second peep-proof color resistance layer is located on the color film substrate or the array substrate.
12. The display panel of claim 1, wherein the display panel comprises,
and an included angle between the preset direction and the first direction is larger than or equal to 30 degrees.
13. A driving method applied to the display panel according to any one of claims 1 to 12, wherein the display panel includes a peep-proof mode;
the driving method includes:
and in the peep-proof mode, controlling the peep-proof pixels to be lightened.
14. A display device comprising the display panel of any one of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210112467.XA CN114236891B (en) | 2022-01-29 | 2022-01-29 | Display panel, driving method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210112467.XA CN114236891B (en) | 2022-01-29 | 2022-01-29 | Display panel, driving method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114236891A CN114236891A (en) | 2022-03-25 |
| CN114236891B true CN114236891B (en) | 2023-10-03 |
Family
ID=80747502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210112467.XA Active CN114236891B (en) | 2022-01-29 | 2022-01-29 | Display panel, driving method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114236891B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755849B (en) * | 2022-04-29 | 2023-12-15 | 福州京东方光电科技有限公司 | Display panel and display device |
| CN115016136A (en) * | 2022-05-06 | 2022-09-06 | 滁州惠科光电科技有限公司 | Display panel, preparation method and display device |
| CN115955869B (en) * | 2022-12-28 | 2024-01-02 | 惠科股份有限公司 | Display panel and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060112966A (en) * | 2005-04-28 | 2006-11-02 | 엘지.필립스 엘시디 주식회사 | Color filter substrate and liquid crystal display panel having the same |
| CN110071149A (en) * | 2019-04-15 | 2019-07-30 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110137237A (en) * | 2019-06-06 | 2019-08-16 | 京东方科技集团股份有限公司 | Peep-proof device and display device |
| CN113267924A (en) * | 2021-05-07 | 2021-08-17 | 惠州市华星光电技术有限公司 | Display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101308589B1 (en) * | 2006-11-09 | 2013-09-13 | 삼성디스플레이 주식회사 | Display panel and method of fabricating the same |
-
2022
- 2022-01-29 CN CN202210112467.XA patent/CN114236891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060112966A (en) * | 2005-04-28 | 2006-11-02 | 엘지.필립스 엘시디 주식회사 | Color filter substrate and liquid crystal display panel having the same |
| CN110071149A (en) * | 2019-04-15 | 2019-07-30 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110137237A (en) * | 2019-06-06 | 2019-08-16 | 京东方科技集团股份有限公司 | Peep-proof device and display device |
| CN113267924A (en) * | 2021-05-07 | 2021-08-17 | 惠州市华星光电技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114236891A (en) | 2022-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114236891B (en) | Display panel, driving method thereof and display device | |
| US10388234B2 (en) | Double-sided display device, system, and method | |
| US7453529B2 (en) | Stereoscopic image display device and electronic device with the same | |
| US8284242B2 (en) | Integrated electrochromic 2D/3D display device | |
| US7952548B2 (en) | Electronic display device | |
| JP5667752B2 (en) | 3D image display device | |
| US8436787B2 (en) | Autostereoscopic 3D display device and fabrication method thereof | |
| US9240146B2 (en) | Liquid crystal display device and driving method therefore as well as electronic apparatus | |
| JP5071041B2 (en) | Display device and electronic device | |
| JP5942129B2 (en) | Display device | |
| US7932874B2 (en) | Display device | |
| WO2020195014A1 (en) | Display device | |
| EP2629135B1 (en) | Display device | |
| WO2021208208A1 (en) | Display device | |
| TW201447383A (en) | Display device | |
| US8120647B2 (en) | 3-dimensional display device having divided regions | |
| TWI449957B (en) | Display unit and barrier device | |
| KR20080060950A (en) | Three dimensional image display device and driving method thereof | |
| US20080013016A1 (en) | Liquid Crystal Display Device, Driving Method Thereof And Mobile Station Having The Same | |
| WO2011052901A2 (en) | Display apparatus | |
| JP2014228852A (en) | Display device | |
| US20130050609A1 (en) | Display device, barrier device, retardation film and electronic apparatus | |
| US20130265510A1 (en) | Three-dimensional display device and active optical element thereof | |
| JP2009169148A (en) | Display system | |
| US8823634B2 (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |