CN116206558A - Display panel control method and display device - Google Patents
Display panel control method and display device Download PDFInfo
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- CN116206558A CN116206558A CN202310498758.1A CN202310498758A CN116206558A CN 116206558 A CN116206558 A CN 116206558A CN 202310498758 A CN202310498758 A CN 202310498758A CN 116206558 A CN116206558 A CN 116206558A
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
- G09F9/335—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 being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
Abstract
The application belongs to the technical field of display, and particularly relates to a control method of a display panel and a display device; the control method comprises the following steps: when the peep-proof display instruction is determined to be received, the display brightness of each display sub-pixel in the pixel unit is obtained; determining the display color of a pixel unit based on the display brightness of each display sub-pixel in the pixel unit; determining the color difference between the display color of the pixel unit and a preset peep-proof color, wherein the preset peep-proof color is a display color corresponding to the pixel unit in a preset peep-proof angle range; and determining the display brightness of the peep-proof sub-pixel based on the color difference. According to the scheme, the display color is compared with the peep-proof color under the preset peep-proof picture to obtain the color difference, and the display brightness of the peep-proof sub-pixel is determined based on the color difference, so that the peep-proof picture color under the peep-proof angle is ensured to be the same as the peep-proof color under the preset peep-proof picture, the peep-proof picture is ensured to be normal, and the peep-proof effect of the display device is further improved.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a control method of a display panel and a display device.
Background
In modern society, computers and mobile phones are very common in public places, and with the development of network technology, more and more people perform operations such as shopping or account transaction on the network, and in the process of performing the operations, operators often need to input personal information on display devices such as computers, mobile phones, automatic teller machines, automatic ticket extractors and the like, so that personal information leakage is easily caused. Accordingly, the anti-peeping performance of the display device is receiving more and more attention.
However, the existing display device cannot present a good peep-proof picture under the peep-proof angle, so that the problem of poor peep-proof effect occurs.
Disclosure of Invention
The purpose of the application is to provide a control method of a display panel and a display device, which can effectively ensure that better peep-proof pictures are presented under peep-proof angles, so that the peep-proof effect of the display device is improved.
The first aspect of the present application provides a control method for a display panel, where the display panel includes a plurality of pixel units arranged in an array, each pixel unit includes a plurality of display sub-pixels with different display colors, each pixel unit further includes a peep-proof sub-pixel, the peep-proof sub-pixel and the display sub-pixel are controlled independently, light emitted by the peep-proof sub-pixel and light emitted by the display sub-pixel can be mixed under a peep-proof angle, light emitted by the display sub-pixel can be observed under a front viewing angle, and the peep-proof sub-pixel is in a black state under the front viewing angle; the control method comprises the following steps:
When the peep-proof display instruction is determined to be received, the display brightness of each display sub-pixel in the pixel unit is obtained;
determining the display color of the pixel unit based on the display brightness of each display sub-pixel in the pixel unit;
determining the color difference between the display color of the pixel unit and a preset peep-proof color, wherein the preset peep-proof color is a display color corresponding to the pixel unit in a preset peep-proof angle range;
and determining the display brightness of the peep-proof sub-pixel based on the color difference.
In an exemplary embodiment of the present application, in the pixel unit: the display sub-pixels with different display colors comprise red display sub-pixels, green display sub-pixels and blue display sub-pixels which are arranged at intervals, the preset peep-proof color is white, and the preset peep-proof color comprises a red brightness value, a green brightness value and a blue brightness value; wherein, the liquid crystal display device comprises a liquid crystal display device,
the step of determining the color difference between the display color of the pixel unit and the preset peep-proof color comprises the following steps:
comparing the display brightness of the red display sub-pixel in the pixel unit with the red brightness value in the preset peep-proof color, and calculating a red difference value; comparing the display brightness of the green display sub-pixels in the pixel units with the green brightness value in the preset peep-proof color, and calculating a green difference value; comparing the display brightness of the blue display sub-pixel in the pixel unit with the blue brightness value in the preset peep-proof color, and calculating a blue color difference value:
And determining the display brightness of the peep-proof sub-pixel based on the red difference value, the green difference value and the blue difference value.
In an exemplary embodiment of the present application, the peep-proof sub-pixel includes a red peep-proof sub-pixel, a green peep-proof sub-pixel and a blue peep-proof sub-pixel that are disposed at intervals, the red peep-proof sub-pixel corresponds to the red display sub-pixel, and the red peep-proof sub-pixel is disposed at intervals in a row direction with the red display sub-pixel; the green peep-proof sub-pixel corresponds to the green display sub-pixel, and the green peep-proof sub-pixel and the green display sub-pixel are arranged at intervals in the row direction; the blue peep-proof sub-pixel corresponds to the blue display sub-pixel, and the blue peep-proof sub-pixel and the blue display sub-pixel are arranged at intervals in the column direction;
the step of determining the display brightness of the peep-proof sub-pixel based on the red difference value, the green difference value and the blue difference value comprises the following steps:
determining the display brightness of the red peep-proof sub-pixel based on the red difference value; determining the display brightness of the green peep-proof sub-pixel based on the green color difference value; and determining the display brightness of the blue peep-proof sub-pixel based on the blue color difference value.
In an exemplary embodiment of the present application, when it is determined that a peep-proof display instruction is received, the step of obtaining display brightness of each display sub-pixel in the pixel unit includes:
respectively acquiring data voltages corresponding to the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel in the pixel unit;
respectively determining data currents corresponding to the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel according to the data voltages;
and determining the display brightness of the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel according to each data current.
In an exemplary embodiment of the present application, the control method further includes:
before the peep-proof display instruction is determined to be received, starting each display sub-pixel in the pixel unit; or (b)
And when the peep-proof display instruction is determined to be received, simultaneously starting the peep-proof sub-pixels and the display sub-pixels in the pixel unit.
In an exemplary embodiment of the present application, the display panel further includes a normal display instruction, and the control method further includes:
And when the normal display instruction is determined to be received, starting each display sub-pixel in the pixel unit, and closing the peep-proof sub-pixel in the pixel unit.
A second aspect of the present application provides a display device, including:
the display panel comprises a substrate and a plurality of pixel units which are arranged on the substrate in an array manner, each pixel unit comprises a peep-proof sub-pixel and a plurality of display sub-pixels which display different colors, each display sub-pixel comprises a display light-emitting diode, each peep-proof sub-pixel comprises a peep-proof light-emitting diode and a shading part, each shading part is arranged on one side of each peep-proof light-emitting diode far away from the substrate, each peep-proof light-emitting diode comprises a peep-proof light-emitting part, and orthographic projection of each peep-proof light-emitting part on the substrate is positioned in orthographic projection of each shading part on the substrate;
the driving controller is electrically connected with the peep-proof sub-pixel, and can regulate and control the display brightness of the peep-proof sub-pixel in a peep-proof mode.
In another exemplary embodiment of the present application, each of the pixel units includes a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel disposed at a mutual interval;
The red display sub-pixels and the green display sub-pixels are sequentially arranged in the column direction, and the blue display sub-pixels and the red display sub-pixels and the green display sub-pixels are sequentially arranged in the row direction.
In another exemplary embodiment of the present application, each of the pixel units includes a red peep-proof sub-pixel, a green peep-proof sub-pixel, and a blue peep-proof sub-pixel that are disposed at intervals;
the red peep-proof sub-pixel corresponds to the red display sub-pixel, the red peep-proof sub-pixel and the red display sub-pixel are arranged at intervals in the row direction, and the red peep-proof sub-pixel and the red display sub-pixel are formed by vapor deposition of the same mask plate;
the green peep-proof sub-pixels correspond to the green display sub-pixels, the green peep-proof sub-pixels and the green display sub-pixels are arranged at intervals in the row direction, and the green peep-proof sub-pixels and the green display sub-pixels are formed by vapor deposition of the same mask plate;
the blue peep-proof sub-pixel corresponds to the blue display sub-pixel, the blue peep-proof sub-pixel and the blue display sub-pixel are arranged at intervals in the column direction, and the blue peep-proof sub-pixel and the blue display sub-pixel are formed by vapor deposition of the same mask plate.
In another exemplary embodiment of the present application, the display device further includes a pixel defining layer, the pixel defining layer has a plurality of pixel openings arranged at intervals and pixel defining portions located between adjacent pixel openings, the display light emitting diode includes a display light emitting portion, the display light emitting portion is located in one of the pixel openings, and an orthographic projection of the peep-proof light emitting diode on the substrate is located in an orthographic projection of the pixel defining portion on the substrate.
The scheme of the application has the following beneficial effects:
the scheme of the application comprises a control method of a display panel and a display device; the display brightness of each display sub-pixel in the pixel unit is firstly obtained, then the obtained display brightness of each display sub-pixel is used for determining the display color of the pixel unit, the display color is compared with the peep-proof color under the preset peep-proof picture to obtain the color difference, and then the display brightness of the peep-proof sub-pixel is determined based on the color difference, so that the peep-proof picture color under the peep-proof angle is ensured to be the same as the peep-proof color under the preset peep-proof picture, the peep-proof picture is ensured to be normal, and the peep-proof effect of the display device is further improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a substrate provided with a plurality of pixel units according to a first embodiment or a second embodiment of the present application.
Fig. 2 is a schematic cross-sectional structure of a peep-proof sub-pixel and a display sub-pixel according to the first embodiment or the second embodiment of the present application.
Fig. 3 is a schematic structural diagram of a display sub-pixel and a peep-proof sub-pixel in a pixel unit according to the first embodiment or the second embodiment of the present application.
Fig. 4 is a flow chart illustrating a control method of a display panel according to the first or second embodiment of the present application.
Fig. 5 is a schematic flow chart of acquiring display level brightness of a display sub-pixel according to the first or second embodiment of the present application.
Fig. 6 is a schematic structural diagram of a driving controller and a display panel according to the first or second embodiment of the present application.
Reference numerals illustrate:
1. a display device; 10. a display panel; 11. a substrate; 12. a pixel unit; 121. displaying the sub-pixels; 121a, red display sub-pixels; 121b, green display sub-pixels; 121c, blue display sub-pixels; 1211. displaying the light emitting diode; 12111. a display anode 12112, a display light emitting section; 12113. a display cathode; 1214. a light filtering part; 122. peep-proof sub-pixels; 122a, red peep-proof sub-pixels; 122b, green peep-proof sub-pixels; 122c, blue peep-proof sub-pixels; 1221. peep-proof light emitting diode; 12211. an anti-peeping anode; 12212. a peep-proof light-emitting part; 12213. a peep-proof cathode; 1222. a light shielding section; 13. a driving circuit layer; 14. a pixel definition layer; 141. a pixel opening; 142. a pixel defining section; 15. an encapsulation layer; 151. a first inorganic encapsulation layer; 152. an organic encapsulation layer; 153. a second inorganic encapsulation layer; 20. and a driving controller.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
In this application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; 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.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Example 1
In one embodiment, a control method of a display panel 10 is provided, and the display panel 10 can be an OLED (organic light emitting diode) display. As shown in fig. 1, the display panel 10 includes a substrate 11 and a plurality of pixel units 12 arranged in an array on the substrate 11, each pixel unit 12 includes a plurality of display sub-pixels 121 with different display colors, and the display panel 10 is made to display different display colors by controlling the light emission of the different display sub-pixels 121.
The substrate 11 may be a rigid substrate made of glass, but is not limited thereto, and may be a flexible substrate made of a material such as polyimide (abbreviated as "polyimide"), that is, the display panel 10 of the present application is not limited to a rigid, non-bendable panel, but may be a flexible, bendable panel.
Further, referring to fig. 2, the display panel 10 includes a peep-proof mode and a normal display mode, and in order to realize convenient switching in the two modes, each pixel unit 12 further includes a peep-proof sub-pixel 122, when the peep-proof sub-pixel 122 is turned on, only the light emitted by the display sub-pixel 121 can be observed under the front viewing angle, and the peep-proof sub-pixel 122 is in a black state, that is, the light emitted by the peep-proof sub-pixel 122 cannot be seen under the front viewing angle, and the display picture under the front viewing angle is a normally displayed picture; under the peep-proof angle, the light emitted by the peep-proof sub-pixel 122 can be mixed with the light emitted by the display sub-pixel 121, so that the display is heterochromatic, and the reading of the information under the peep-proof angle is interfered, so that the peep-proof sub-pixel 122 can ensure the light mixing with the display sub-pixel 121 under the peep-proof angle, and the peep-proof sub-pixel 122 is in a black state when being watched under the front viewing angle, so as to realize the peep-proof function.
It should be noted that, in the pixel unit 12, the peep-proof sub-pixel 122 and the display sub-pixel 121 are controlled independently, so that the display brightness of the peep-proof sub-pixel 122 and the display sub-pixel 121 can be controlled respectively, the display brightness of the peep-proof sub-pixel 122 and the display sub-pixel 121 is adjusted more simply, the peep-proof picture can be better presented, and the normal display mode and the peep-proof mode can be switched more conveniently.
Referring to fig. 2, in order to drive the peep-proof sub-pixel 122 and the display sub-pixel 121, the display panel 10 further includes a driving circuit layer 13, the driving circuit layer 13 is formed on the substrate 11, and the driving circuit layer 13 may include a circuit structure such as a thin film transistor, a wiring, etc. for driving the light emitting diode to emit light, which will not be described herein in detail.
In addition, referring to fig. 2, the display panel 10 further includes a pixel defining layer 14, the pixel defining layer 14 may have a plurality of pixel openings 141 arranged at intervals and a pixel defining portion 142 located between adjacent pixel openings 141, in other words, the pixel defining layer 14 may be regarded as a grid-shaped hollowed-out structure layer, the hollowed-out area is the pixel opening 141 for forming pixels in the present embodiment, and the non-hollowed-out area is the pixel defining portion 142 in the present embodiment, and it should be understood that a surface of the pixel defining portion 142 away from the substrate 11 is a plane. For example, the pixel defining layer 14 can be made of PI or the like.
The display sub-pixel 121 may include a display light emitting diode 1211, and the display light emitting diode 1211 includes a display anode 12111, a display light emitting portion 12112, and a display cathode 12113, which are sequentially stacked.
It should be understood that the display anodes 12111 of the display light emitting diodes 1211 in the display panel 10 are disposed at intervals so as to enable the display light emitting diodes 1211 to be driven independently, and the display cathodes 12113 of the display light emitting diodes 1211 can be connected to form an entire surface electrode, so as to reduce the processing cost.
The display anode 12111 may include a first conductive layer formed between the substrate 11 and the pixel defining layer 14, that is, in the process of manufacturing the display panel 10, the first conductive layer is formed on the substrate 11, and then the pixel defining layer 14 is manufactured, the pixel defining portion 142 covers an edge region of the first conductive layer, the edge region of the first conductive layer may be connected to a structure such as a thin film transistor in the driving circuit layer 13, and the pixel opening 141 exposes a middle region of the first conductive layer, and the display light emitting portion 12112 is located in the pixel opening 141 and contacts the middle region of the first conductive layer.
For example, the first conductive layer may be a multi-layer structure, i.e.: the first conductive layer may include at least a reflective layer and a high work function material layer which are sequentially stacked. The high work function material layer may include Indium Tin Oxide (ITO), indium Zinc Oxide (IZO), zinc oxide (ZnO), or indium oxide (In 2O 3); the reflective layer may include silver (Ag), that is, the first conductive layer may have a multilayer structure of ITO/Ag, but is not limited thereto, and the first conductive layer may include a high work function material layer, a reflective layer, and a high work function material layer, which are sequentially stacked, for example: the first conductive layer may also be a multilayer structure of ITO/Ag/ITO.
As shown in fig. 1, the display light emitting portion 12112 may be located in the pixel opening 141, that is, the pixel defining layer 14 may be first formed when the display panel 10 is manufactured, and the display light emitting portion 12112 may be manufactured after the pixel defining layer 14 is manufactured so that the display light emitting portion 12112 is formed in the pixel opening 141. For example, the display light emitting portion 12112 may be formed in the pixel opening 141 by vapor deposition or the like.
It should be understood that the display light emitting portion 12112 may include a hole injection layer, a hole transport layer, an organic light emitting material layer, an electron transport layer, and an electron injection layer, which are sequentially stacked, the hole injection layer being in contact with the display anode 12111 and the electron injection layer being in contact with the display cathode 12113, but not limited thereto, the display light emitting portion 12112 may include only the hole transport layer, the light emitting material layer, and the electron transport layer, or other structures, as may be desired.
The display cathode 12113 may be formed after the display light emitting portion 12112 is formed, and is in contact with the display light emitting portion 12112. This shows that the cathode 12113 can include a low work function material layer comprising Li, ca, liF/Ca, liF/Al, al, mg, ag, pt, pd, ni, au, nd, ir, cr, baF, ba, compounds thereof, or mixtures thereof, such as: the cathode 12113 may include a low work function material layer fabricated using a mixture of Ag and Mg.
It should be understood that a plurality of display sub-pixels 121 may be provided, and the display light emitting portion 12112 in the display light emitting diode 1211 of each display sub-pixel 121 is correspondingly located in one pixel opening 141, which may be understood as follows: the number of the display sub-pixels 121 is the same as the number of the pixel openings 141, and corresponds one by one.
In the present embodiment, each pixel unit 12 includes three different color display sub-pixels 121, for example: red display subpixel 121a, green display subpixel 121b, and blue display subpixel 121c, red display subpixel 121a refers to the emitted light as red, green display subpixel 121b refers to the emitted light as green, and blue display subpixel 121c refers to the emitted light as blue.
Further, referring to fig. 2, the peep-proof sub-pixel 122 includes a peep-proof light emitting diode 1221 and a light shielding portion 1222, the peep-proof light emitting diode 1221 includes a peep-proof anode 12211, a peep-proof light emitting portion 12212 and a peep-proof cathode 12213 formed by stacking sequentially, and an orthographic projection of the light shielding portion 1222 on the substrate 11 covers an orthographic projection of the peep-proof light emitting portion 12212 on the substrate 11 so as to shield light of the peep-proof light emitting portion 12212 under a front viewing angle, so that the peep-proof sub-pixel 122 is black under the front viewing angle, so as to ensure a normal display picture.
It should be noted that, the peep-proof anode 12211 may be disposed on the same layer as the display anode 12111, and the peep-proof anode 12211 and the display anode 12111 are disposed at intervals, so as to be driven independently. It should be understood that in the present disclosure, "co-layer arrangement" refers to a layer structure in which a film layer for forming a specific pattern is formed using the same film forming process and then formed through one patterning process using the same mask plate. I.e., one patterning process corresponds to one mask, also known as a reticle. Depending on the specific pattern, a patterning process may include multiple exposure, development or etching processes, and the specific patterns in the formed layer structure may be continuous or discontinuous, and the specific patterns may be at different heights or have different thicknesses, so that the manufacturing process is simplified, the manufacturing cost is saved, and the production efficiency is improved.
In addition, as shown in fig. 2, the peep-proof cathode 12213 may be formed on a surface of the peep-proof light-emitting portion 12212 away from the peep-proof anode 12211, that is, when the display panel 10 is manufactured, the peep-proof light-emitting portion 12212 may be formed on the substrate 11, and then the peep-proof cathode 12213 may be formed, where the peep-proof cathode 12213 may be in contact with a surface of the peep-proof light-emitting portion 12212 away from the peep-proof anode 12211.
For example, the privacy cathode 12213 may include a layer of low function material including Li, ca, liF/Ca, liF/Al, al, mg, ag, pt, pd, ni, au, nd, ir, cr, baF2, ba, compounds thereof, or mixtures thereof, such as: the cathode 12113 may include a low work function material layer fabricated using a mixture of Ag and Mg.
The peep-proof cathode 12213 may be disposed on the same layer as the display cathode 12113 and connected to form a surface electrode, so as to reduce the processing difficulty and cost.
In some embodiments, the front projection of the light shielding portion 1222 on the substrate 11 may completely overlap with the front projection of the peep-proof light emitting portion 12212 on the substrate 11, so as to ensure that the light mixing amount at two sides of the light shielding portion 1222 is increased, and further ensure the peep-proof effect at two sides.
In the embodiment of the present application, the orthographic projection of the peep-proof light-emitting part 12212 on the substrate 11 is located in the orthographic projection of the light-shielding part 1222 on the substrate 11, so as to avoid the light leakage of the peep-proof light-emitting part 12212 under the front viewing angle, and ensure the front viewing display effect.
For example, the light shielding portion 1222 may extend 0-10 μm beyond the privacy lighting portion; alternatively, 2 μm, 4 μm, 5 μm, 6 μm, 8 μm, 10 μm.
For example, the light shielding portion 1222 may be a Black Matrix (BM), i.e.: the anti-peeping light-emitting diode 1221 is made of black materials, so that the shielding effect of the anti-peeping light-emitting diode 1221 under the normal viewing angle is improved, and the normal display picture seen by the normal viewing angle is ensured. In some embodiments, the light shielding portion 1222 may also be molybdenum (Mo).
The light shielding portion 1222 may have a thickness of 0.1 to 4 μm, alternatively, 0.1 μm, 0.4 μm, 0.5 μm, 0.8 μm, 1 μm, 1.5 μm, 2 μm, 2.5 μm, 3 μm, 3.5 μm, 4 μm.
In some embodiments, the pixel defining layer 14 is further provided with a peep-proof opening, and the peep-proof light emitting part 12212 may be located in the peep-proof opening, that is, the pixel defining layer 14 may be manufactured first when the display panel 10 is manufactured, and the peep-proof light emitting part 12212 is manufactured after the pixel defining layer 14 is manufactured, so that the peep-proof light emitting part 12212 is formed in the peep-proof opening.
In the embodiment of the present application, referring to fig. 2, the front projection of the peep-proof led 1221 on the substrate 11 is located in the front projection of the pixel defining part 142 on the substrate 11, that is, the peep-proof led 1221 does not occupy the space of the display led 1211.
In order to ensure the peep-proof effect, a peep-proof sub-pixel 122 is disposed on one side of each display sub-pixel 121, that is, a first peep-proof sub-pixel is disposed on one side of the red display sub-pixel 121a, a second peep-proof sub-pixel is disposed on one side of the green display sub-pixel 121b, and a third peep-proof sub-pixel is disposed on one side of the blue display sub-pixel 121c, so that under the peep-proof angle, light rays emitted by the peep-proof sub-pixels 122 can be mixed with light rays emitted by adjacent display sub-pixels 121, and information reading is disturbed, so that better peep-proof is realized.
It should be noted that, the color of the light emitted by the peep-proof subpixel 122 may be the same as the color of the light emitted by the adjacent display subpixel 121, or may be different from the color of the light emitted by the adjacent display subpixel 121.
For example, the light emitted by the first peep-preventing sub-pixel may be the same as the light emitted by the red display sub-pixel 121a, that is, the light emitted by the first peep-preventing sub-pixel is red light; the light emitted by the second peep-proof sub-pixel may be the same as the light emitted by the green display sub-pixel 121b, that is, the light emitted by the second peep-proof sub-pixel is green light; the light emitted by the third peep-proof sub-pixel may be the same as the light emitted by the blue display sub-pixel 121c, that is, the light emitted by the third peep-proof sub-pixel is blue light.
Alternatively, the light emitted by the first peep-proof sub-pixel may be different from the light emitted by the red display sub-pixel 121a, that is, the light emitted by the first peep-proof sub-pixel is green light, blue light or white light; the light emitted by the second peep-proof sub-pixel may be different from the light emitted by the green display sub-pixel 121b, that is, the light emitted by the second peep-proof sub-pixel is red light, blue light or white light; the light emitted by the third peep-proof sub-pixel may be different from the light emitted by the blue display sub-pixel 121c, that is, the light emitted by the third peep-proof sub-pixel is red light, green light or white light.
In this embodiment, as shown in fig. 3, each pixel unit 12 includes three display sub-pixels 121 with different display colors and three peep-proof sub-pixels 122 with different display colors, each display sub-pixel 121 corresponds to one peep-proof sub-pixel 122, and the display sub-pixel 121 has the same display color as the adjacent peep-proof sub-pixels 122. That is, each pixel unit 12 includes therein a red display sub-pixel 121a, a green display sub-pixel 121b, a blue display sub-pixel 121c, a red peep-preventing sub-pixel 122a, a green peep-preventing sub-pixel 122b, and a blue peep-preventing sub-pixel 122c.
Illustratively, as shown in fig. 3, the red display sub-pixel 121a and the green display sub-pixel 121b are sequentially arranged in the column direction, the blue display sub-pixel 121c and the red display sub-pixel 121a and the green display sub-pixel 121b are sequentially arranged in the row direction, and the display areas of the blue display sub-pixel 121c, the green display sub-pixel 121b, and the red display sub-pixel 121a gradually decrease. The red peep-proof sub-pixel 122a corresponds to the red display sub-pixel 121a, the red peep-proof sub-pixel 122a and the red display sub-pixel 121a are arranged at intervals in the row direction, and the red peep-proof sub-pixel 122a and the red display sub-pixel 121a are formed by adopting the same mask plate through evaporation; the green peep-proof sub-pixel 122b corresponds to the green display sub-pixel 121b, the green peep-proof sub-pixel 122b and the green display sub-pixel 121b are arranged at intervals in the row direction, and the green peep-proof sub-pixel 122b and the green display sub-pixel 121b are formed by vapor deposition of the same mask plate; the blue peep-proof sub-pixel 122c corresponds to the blue display sub-pixel 121c, the blue peep-proof sub-pixel 122c and the blue display sub-pixel 121c are arranged at intervals in the column direction, and the blue peep-proof sub-pixel 122c and the blue display sub-pixel 121c are formed by vapor deposition of the same mask plate.
In the embodiment of the present application, the red peep-proof light-emitting portion of the red peep-proof sub-pixel 122a and the red display light-emitting portion of the red display sub-pixel 121a may be formed by vapor deposition using the same opening of the same mask plate; the green peep-proof light-emitting part of the green peep-proof sub-pixel 122b and the green display light-emitting part of the green display sub-pixel 121b can be formed by vapor deposition of the same opening of the same mask plate; the blue peep-preventing light-emitting part of the blue peep-preventing sub-pixel 122c and the blue display light-emitting part of the blue display sub-pixel 121c can be formed by vapor deposition of the same mask plate through the same opening. In this way, the peep-proof light-emitting part 12212 and the adjacent display light-emitting part 12112 are formed by vapor deposition at the same time by using the same mask plate, so that the number of processes of the peep-proof light-emitting part 12212 can be reduced, and the production cost can be reduced.
In order to avoid color mixing at the time of vapor deposition of the red display light emitting portion, the green display light emitting portion, and the blue display light emitting portion, the areas of the red display light emitting portion, the green display light emitting portion, and the blue display light emitting portion are smaller than the opening area of the mask.
The length of the red peep-proof light-emitting part in the column direction is larger than that of the red display light-emitting part in the column direction, that is, the length of the red peep-proof light-emitting part in the column direction is equal to the length of an opening on a mask plate of the vapor deposition red display light-emitting part, so that the service life of the red peep-proof light-emitting part is prolonged; the length of the green peep-proof luminous part in the column direction is larger than that of the green display luminous part in the column direction, namely, the length of the green peep-proof luminous part in the column direction is equal to the length of an opening on a mask plate of the vapor deposition green display luminous part so as to improve the service life of the green peep-proof luminous part; and the width of the blue peep-preventing sub-pixel 122c in the row direction is larger than the width of the blue display sub-pixel 121c in the row direction, that is, the width of the blue peep-preventing light-emitting part in the row direction is equal to the width of the opening on the mask plate of the vapor-deposited blue display light-emitting part, so as to improve the service life of the blue peep-preventing light-emitting part.
In addition, the service life of the peep-proof light-emitting part 12212 can be prolonged, and light emitted by the display sub-pixel 121 can be mixed better, so that the peep-proof effect is ensured.
Alternatively, the lateral distance of the red and green privacy subpixels 122a, 122b may be 5-25 μm, for example, 5 μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, 20 μm, 22 μm, 24 μm, or 25 μm. The blue privacy subpixel 122c may have a longitudinal distance of 5-25 μm, for example, 5 μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, 16 μm, 18 μm, 20 μm, 22 μm, 24 μm, or 25 μm.
Further, in the peep-proof mode, the red peep-proof sub-pixel 122a, the green peep-proof sub-pixel 122b and the blue peep-proof sub-pixel 122c in each pixel unit 12 compensate the display pattern picture to be white point color at the pixel level, that is, in the peep-proof mode, the peep-proof strabismus picture appears white, so that the effective picture information cannot be identified under the strabismus view angle.
In order to ensure a peep-proof picture under a strabismus view angle, referring to fig. 4, the display control method includes:
in step S10, when it is determined that the peep-proof display instruction is received, the display brightness of each display sub-pixel 121 in the pixel unit 12 is obtained.
As can be seen from the foregoing description, in the embodiment of the present application, the red display subpixel 121a, the green display subpixel 121b, and the blue display subpixel 121c are included, so the obtaining the display luminance of each display subpixel 121 in the pixel unit 12 includes the following steps, as shown in fig. 4 and 5:
step S101, respectively obtaining data voltages corresponding to the red display sub-pixel 121a, the green display sub-pixel 121b and the blue display sub-pixel 121c in the pixel unit 12;
step S102, respectively determining the data currents corresponding to the red display sub-pixel 121a, the green display sub-pixel 121b and the blue display sub-pixel 121c according to the data voltages;
in step S103, the display luminance of the red display subpixel 121a, the green display subpixel 121b, and the blue display subpixel 121c is determined according to each data current.
After determining the display luminance of each display sub-pixel 121 in the pixel unit 12, it further includes:
in step S20, the display color of the pixel unit 12 is determined based on the display luminance of each display sub-pixel 121 in the pixel unit 12.
The display color of the pixel unit 12 is determined based on the display luminance of the red display subpixel 121a, the display luminance of the green display subpixel 121b, and the display luminance of the blue display subpixel 121 c.
In step S30, a color difference between the display color of the pixel unit 12 and the preset peep-proof color is determined.
The preset peep-proof color is a display color corresponding to the pixel unit 12 preset in the peep-proof angle range, and the preset peep-proof color may be red, green, blue, white, etc.
In step S40, the display brightness of the peep-proof sub-pixel 122 is determined based on the color difference.
It can be understood that, the display brightness of the peep-proof sub-pixel 122 is regulated and controlled based on the color difference, so that the peep-proof image of the pixel unit 12 under the peep-proof angle is guaranteed to be the same as the peep-proof color under the preset peep-proof image, so that the peep-proof image is guaranteed to be normal, a better peep-proof image is presented, and the peep-proof effect of the display panel 10 is improved.
In addition, referring to fig. 6, the display brightness of the peep-proof sub-pixel 122 may be regulated by the driving controller 20, where the driving controller 20 is disposed in the non-display area of the display panel 10 to ensure the display effect.
In the embodiment of the present application, the preset peep-proof color is white, and it is understood that white may be formed by mixing red, green and blue, that is, the preset peep-proof color includes a red brightness value, a green brightness value and a blue brightness value, so the step of determining the color difference between the display color of the pixel unit 12 and the preset peep-proof color includes:
Comparing the display brightness of the red display sub-pixel 121a in the pixel unit 12 with the red brightness value in the preset peep-proof color and calculating a red difference value; comparing the display brightness of the green display sub-pixel 121b in the pixel unit 12 with the green brightness value in the preset peep-proof color and calculating a green difference value; the display brightness of the blue display sub-pixel 121c in the pixel unit 12 is compared with the blue brightness value in the preset peep-proof color, and a blue color difference value is calculated:
the display brightness of the peep-proof sub-pixel 122 is determined based on the red difference value, the green difference value, and the blue difference value.
Further, the step of determining the display brightness of the peep-proof sub-pixel 122 based on the red difference value, the green difference value and the blue difference value includes:
determining a display brightness of the red privacy subpixel 122a based on the red difference value; determining the display brightness of the green peep-proof sub-pixel 122b based on the green color difference value; the display brightness of the blue peep-proof sub-pixel 122c is determined based on the blue color difference value.
For example, the preset peep-proof color is white, and the corresponding red brightness value, green brightness value and blue brightness value are respectively 100, 300 and 40; when the display is turned on, the display brightness of the red display sub-pixel 121a, the green display sub-pixel 121b and the blue display sub-pixel 121c in the pixel unit 12 are respectively 60, 150 and 20, so that the display brightness of the red display sub-pixel 122a, the green display sub-pixel 122b and the blue display sub-pixel 122c can be controlled to compensate in order to make the display brightness of the red display sub-pixel 122a, the display brightness of the green display sub-pixel 122b and the display brightness of the blue display sub-pixel 122c respectively 40, 150 and 20 by controlling the display brightness of the red display sub-pixel 122a, the display brightness of the green display sub-pixel 122b and the display brightness of the blue display sub-pixel 122c by the driving controller 20. In this way, the display brightness of the display sub-pixel 121 is compensated by the display brightness of the peep-proof sub-pixel 122, so that better peep-proof color can be obtained under the peep-proof angle, that is, the obtained white is purer, the interference effect on information is better, and the peep-proof effect is better.
Further, the control method further comprises the following steps:
before the peep-proof display instruction is determined to be received, each display sub-pixel 121 in the pixel unit 12 is started, and then after the peep-proof display instruction is received, the peep-proof sub-pixel 122 is started; or (b)
When it is determined that the peep-proof display instruction is received, the peep-proof sub-pixel 122 and each display sub-pixel 121 in the pixel unit 12 are turned on at the same time. Turning on the privacy subpixel 122 and the display subpixel 121 simultaneously may reduce the turn-on time.
Further, the display panel 10 further includes a normal display instruction, and the control method further includes the steps of:
when it is determined that the normal display instruction is received, each display sub-pixel 121 in the pixel unit 12 is turned on, and the peep-preventing sub-pixel 122 in the pixel unit 12 is turned off. The normal display mode and the peep-proof mode are switched more conveniently, and the operation is simpler.
In some exemplary embodiments, referring to fig. 2, each display sub-pixel 121 may further include a light filtering portion 1214, where the light filtering portion 1214 may be located on a side of the display light emitting diode 1211 away from the substrate 11, and the front projection of the light filtering portion 1214 on the substrate 11 covers the front projection of the display light emitting portion 12112 on the substrate 11, that is, in the display sub-pixel 121: the front projection of the display light emitting portion 12112 on the substrate 11 is located within the front projection of the filter portion 1214 on the substrate 11, and the filter portion 1214 has the same emission color as the display light emitting portion 12112 covered with it, for example: the emission color of the display light emitting portion 12112 in the red display sub-pixel 121a is red, and the filter portion 1214 thereof is red; the emission color of the display light emitting portion 12112 in the green display subpixel 121b is green, and the filter portion 1214 thereof is green; the blue display subpixel 121c displays the blue emission color of the light emitting portion 12112, and the blue light filtering portion 1214.
In this embodiment, the display panel 10 adopts the COE technology, that is: a light shielding portion 1222 made of a light shielding material is formed on the light emitting side of the display light emitting diode 1211 in a light filtering portion 1214 corresponding to the light emitting color, and the space between the adjacent display sub-pixels 121, namely: the front projection of the light shielding portion 1222 on the substrate 11 is located in the gap area of the adjacent display sub-pixel 121 on the substrate 11, wherein the light shielding portion 1222 can efficiently absorb all wavelengths of ambient light, and the R (red), G (green) and B (blue) filter portions 1214 can ensure that the display light emitted by the 8 or higher organic luminescent material layers is transmitted, and can effectively absorb other wavelengths of light of non-corresponding primary colors in the ambient light while further purifying, so that the reflection of the display panel 10 on the ambient light can be reduced without using a circular polarizer, thereby enabling the display to have better contrast ratio and more accurate and wider color expression.
It should be understood that a light-transmitting area is formed between the light shielding portion 1222 of the peep-proof sub-pixel 122 and the light filtering portion 1214 of at least one display sub-pixel 121 adjacent thereto, so that the light of the peep-proof light emitting portion 12212 shielded by the light shielding portion is emitted to the external environment, and the light emitted by the display light emitting diode 1211 adjacent thereto is mixed with light, so that abnormal color is displayed, and information reading is disturbed, that is, the display screen viewed at the oblique viewing angle is the peep-proof screen.
In order to realize the peep prevention at different viewing angles, the size of the light-transmitting area between the light shielding portion 1222 and the light filtering portion 1214 may be adjusted.
Illustratively, the distance between the surface of the light filtering portion 1214 away from the substrate 11 and the substrate 11 is smaller than the distance between the surface of the light shielding portion 1222 close to the substrate 11 and the substrate 11, so that a height difference is formed between the light filtering portion 1214 and the light shielding portion 1222, thereby forming a light transmitting area for the light of the peep-proof light emitting portion 12212 to exit to the external environment.
Further, as shown in fig. 2, the front projection of the light shielding portion 1222 on the substrate 11 coincides with the front projection boundary of the adjacent filter portion 1214 on the substrate 11, so that the reflection of the display device to the ambient light can be reduced better, and the display effect can be improved.
It should be understood that, in order to realize the peep prevention at different viewing angles, the height difference between the light shielding portion 1222 and the light filtering portion 1214 may be adjusted.
In the embodiment of the present disclosure, the display panel 10 may further include an encapsulation layer 15, where the encapsulation layer 15 is located on a side of the display light emitting diode 1211 and the peep-proof light emitting diode 1221 away from the substrate 11, and the encapsulation layer 15 includes a first inorganic encapsulation layer 151, an organic encapsulation layer 152, and a second inorganic encapsulation layer 153 that are sequentially stacked.
The light shielding portion 1222 may be located at a side of the second inorganic package layer 153 away from the substrate 11, and the light filtering portion 1214 may be located at a side of the organic package layer 152 away from the substrate 11, where the organic package layer 152 performs a planarization function, that is, the entire surface of the organic package layer 152 away from the substrate 11 is a plane, and by disposing the light filtering portion 1214 on the plane of the organic package layer 152 away from the substrate 11, the material of the light filtering portion 1214 may be saved while the light filtering portion 1214 can completely cover the display light emitting portion 12112, and the cost may be reduced.
In order to form a height difference between the light filtering portion 1214 and the light shielding portion 1222 to form a light transmitting region for emitting the light of the peep-preventing light emitting portion 12212 to the external environment, the light filtering portion 1214 may be disposed between the organic encapsulation layer 152 and the second inorganic encapsulation layer 153.
Example two
Referring to fig. 6, a second embodiment of the present application provides a display device 1, which includes a driving controller 20 and a display panel 10 as mentioned in the first embodiment, where the display panel 10 has a control method as mentioned in the first embodiment, and the control method can ensure that the peep-proof picture under the peep-proof angle is the same as the color of the preset peep-proof picture, so as to ensure that the peep-proof picture is normal, and can present a better peep-proof picture, thereby improving the peep-proof effect of the display device 1.
The driving controller 20 may be disposed at one side of the display panel 10, and may be electrically connected to the display sub-pixel 121 and the peep-preventing sub-pixel 122, so as to control the display brightness of the display sub-pixel 121 and regulate the display brightness of the peep-preventing sub-pixel 122 in the peep-preventing mode.
In the description of the present specification, reference to the terms "some embodiments," "exemplary," and the like, means 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 specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments by one of ordinary skill in the art within the scope of the application, and therefore all changes and modifications that fall within the spirit and scope of the invention as defined by the claims and the specification of the application are intended to be covered thereby.
Claims (10)
1. The control method of the display panel comprises a plurality of pixel units which are arranged in an array, wherein each pixel unit comprises a plurality of display sub-pixels with different display colors, and the control method is characterized in that each pixel unit also comprises a peep-proof sub-pixel, the peep-proof sub-pixel and the display sub-pixel are controlled independently, light rays emitted by the peep-proof sub-pixel and light rays emitted by the display sub-pixel can be mixed under a peep-proof angle, light rays emitted by the display sub-pixel can be observed under a front viewing angle, and the peep-proof sub-pixel is in a black state under the front viewing angle; the control method comprises the following steps:
when the peep-proof display instruction is determined to be received, the display brightness of each display sub-pixel in the pixel unit is obtained;
determining the display color of the pixel unit based on the display brightness of each display sub-pixel in the pixel unit;
determining the color difference between the display color of the pixel unit and a preset peep-proof color, wherein the preset peep-proof color is a display color corresponding to the pixel unit in a preset peep-proof angle range;
and determining the display brightness of the peep-proof sub-pixel based on the color difference.
2. The control method of a display panel according to claim 1, wherein in the pixel unit: the display sub-pixels with different display colors comprise red display sub-pixels, green display sub-pixels and blue display sub-pixels which are arranged at intervals, the preset peep-proof color is white, and the preset peep-proof color comprises a red brightness value, a green brightness value and a blue brightness value; wherein, the liquid crystal display device comprises a liquid crystal display device,
the step of determining the color difference between the display color of the pixel unit and the preset peep-proof color comprises the following steps:
comparing the display brightness of the red display sub-pixel in the pixel unit with the red brightness value in the preset peep-proof color, and calculating a red difference value; comparing the display brightness of the green display sub-pixels in the pixel units with the green brightness value in the preset peep-proof color, and calculating a green difference value; comparing the display brightness of the blue display sub-pixel in the pixel unit with the blue brightness value in the preset peep-proof color, and calculating a blue color difference value:
and determining the display brightness of the peep-proof sub-pixel based on the red difference value, the green difference value and the blue difference value.
3. The control method of a display panel according to claim 2, wherein the peep-proof sub-pixels include a red peep-proof sub-pixel, a green peep-proof sub-pixel and a blue peep-proof sub-pixel which are arranged at intervals, the red peep-proof sub-pixel corresponds to the red display sub-pixel, and the red peep-proof sub-pixel and the red display sub-pixel are arranged at intervals in a row direction; the green peep-proof sub-pixel corresponds to the green display sub-pixel, and the green peep-proof sub-pixel and the green display sub-pixel are arranged at intervals in the row direction; the blue peep-proof sub-pixel corresponds to the blue display sub-pixel, and the blue peep-proof sub-pixel and the blue display sub-pixel are arranged at intervals in the column direction;
the step of determining the display brightness of the peep-proof sub-pixel based on the red difference value, the green difference value and the blue difference value comprises the following steps:
determining the display brightness of the red peep-proof sub-pixel based on the red difference value; determining the display brightness of the green peep-proof sub-pixel based on the green color difference value; and determining the display brightness of the blue peep-proof sub-pixel based on the blue color difference value.
4. A control method of a display panel according to claim 2 or 3, wherein the step of acquiring the display luminance of each display sub-pixel in the pixel unit when it is determined that the peep-proof display instruction is received, comprises:
respectively acquiring data voltages corresponding to the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel in the pixel unit;
respectively determining data currents corresponding to the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel according to the data voltages;
and determining the display brightness of the red display sub-pixel, the green display sub-pixel and the blue display sub-pixel according to each data current.
5. The control method of a display panel according to claim 1, characterized in that the control method further comprises:
before the peep-proof display instruction is determined to be received, starting each display sub-pixel in the pixel unit; or (b)
And when the peep-proof display instruction is determined to be received, simultaneously starting the peep-proof sub-pixels and the display sub-pixels in the pixel unit.
6. A control method of a display panel according to any one of claims 1 to 3, wherein the display panel further includes a normal display instruction, the control method further comprising:
And when the normal display instruction is determined to be received, starting each display sub-pixel in the pixel unit, and closing the peep-proof sub-pixel in the pixel unit.
7. A display device, characterized in that the display device comprises:
the display panel comprises a substrate and a plurality of pixel units which are arranged on the substrate in an array manner, each pixel unit comprises a peep-proof sub-pixel and a plurality of display sub-pixels which display different colors, each display sub-pixel comprises a display light-emitting diode, each peep-proof sub-pixel comprises a peep-proof light-emitting diode and a shading part, each shading part is arranged on one side of each peep-proof light-emitting diode far away from the substrate, each peep-proof light-emitting diode comprises a peep-proof light-emitting part, and orthographic projection of each peep-proof light-emitting part on the substrate is positioned in orthographic projection of each shading part on the substrate;
the driving controller is electrically connected with the peep-proof sub-pixel, and can regulate and control the display brightness of the peep-proof sub-pixel in a peep-proof mode.
8. The display device according to claim 7, wherein each of the pixel units includes a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel disposed at a mutual interval;
The red display sub-pixels and the green display sub-pixels are sequentially arranged in the column direction, and the blue display sub-pixels and the red display sub-pixels and the green display sub-pixels are sequentially arranged in the row direction.
9. The display device according to claim 8, wherein each of the pixel units includes a red peep-preventing sub-pixel, a green peep-preventing sub-pixel and a blue peep-preventing sub-pixel disposed at a distance from each other;
the red peep-proof sub-pixel corresponds to the red display sub-pixel, the red peep-proof sub-pixel and the red display sub-pixel are arranged at intervals in the row direction, and the red peep-proof sub-pixel and the red display sub-pixel are formed by vapor deposition of the same mask plate;
the green peep-proof sub-pixels correspond to the green display sub-pixels, the green peep-proof sub-pixels and the green display sub-pixels are arranged at intervals in the row direction, and the green peep-proof sub-pixels and the green display sub-pixels are formed by vapor deposition of the same mask plate;
the blue peep-proof sub-pixel corresponds to the blue display sub-pixel, the blue peep-proof sub-pixel and the blue display sub-pixel are arranged at intervals in the column direction, and the blue peep-proof sub-pixel and the blue display sub-pixel are formed by vapor deposition of the same mask plate.
10. The display device of any one of claims 7 to 9, further comprising a pixel defining layer having a plurality of pixel openings arranged at intervals and pixel defining portions between adjacent ones of the pixel openings, wherein the display light emitting diode comprises a display light emitting portion, wherein the display light emitting portion is located in one of the pixel openings, and wherein an orthographic projection of the privacy light emitting diode on the substrate is located in an orthographic projection of the pixel defining portion on the substrate.
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| CN116648102A (en) * | 2023-06-20 | 2023-08-25 | 惠科股份有限公司 | Display panel, display driving method and display device |
| CN116685168A (en) * | 2023-06-28 | 2023-09-01 | 惠科股份有限公司 | Display panel and display device |
| CN116648102B (en) * | 2023-06-20 | 2024-04-19 | 惠科股份有限公司 | Display panel, display driving method and display device |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052660A1 (en) * | 2005-08-23 | 2007-03-08 | Eastman Kodak Company | Forming display color image |
| WO2011125899A1 (en) * | 2010-04-02 | 2011-10-13 | シャープ株式会社 | Liquid crystal display, display method, program, and recording medium |
| US20130169697A1 (en) * | 2011-12-28 | 2013-07-04 | Samsung Electronics Co., Ltd. | Device and method for displaying image, device and method for supplying power, and method for adjusting brightness of contents |
| US20140192091A1 (en) * | 2013-01-07 | 2014-07-10 | Au Optronics Corporation | Display device and driving method thereof |
| US20140210878A1 (en) * | 2011-10-28 | 2014-07-31 | Sharp Kabushiki Kaisha | A method of processing image data for display on a display device, which comprising a multi-primary image display panel |
| CN105447421A (en) * | 2016-01-11 | 2016-03-30 | 邓磊 | Method for realizing private protection of information displayed on screen |
| CN206163104U (en) * | 2016-11-07 | 2017-05-10 | 上海天马微电子有限公司 | Peep -proof display device and peep -proof display |
| JP2017108374A (en) * | 2015-12-01 | 2017-06-15 | カシオ計算機株式会社 | Image processing apparatus, image processing method, and program |
| CN107734264A (en) * | 2017-09-11 | 2018-02-23 | 广东欧珀移动通信有限公司 | Image processing method and device |
| US20200184926A1 (en) * | 2018-04-16 | 2020-06-11 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display device, driving method thereof, and display system |
| US10891908B1 (en) * | 2019-11-04 | 2021-01-12 | Novatek Microelectronics Corp. | Display system and driver circuit thereof |
| CN112310182A (en) * | 2020-10-29 | 2021-02-02 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| US20210327393A1 (en) * | 2018-10-08 | 2021-10-21 | Google Llc | Systems and methods for adjusting light emitted from a display |
| CN214540288U (en) * | 2021-03-08 | 2021-10-29 | 深圳秋田微电子股份有限公司 | Controllable peep-proof display module, display screen and electronic equipment |
| TW202204818A (en) * | 2020-07-29 | 2022-02-01 | 美商瑞爾Ｄ斯帕克有限責任公司 | Pupillated illumination apparatus |
| WO2022198646A1 (en) * | 2021-03-26 | 2022-09-29 | 京东方科技集团股份有限公司 | Display panel |
| TW202306774A (en) * | 2021-05-13 | 2023-02-16 | 日商住友化學股份有限公司 | Laminates and display devices |
| CN115942814A (en) * | 2022-12-30 | 2023-04-07 | 惠科股份有限公司 | display device |
| CN115942822A (en) * | 2022-12-30 | 2023-04-07 | 惠科股份有限公司 | Display panel and display device |
-
2023
- 2023-05-06 CN CN202310498758.1A patent/CN116206558B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052660A1 (en) * | 2005-08-23 | 2007-03-08 | Eastman Kodak Company | Forming display color image |
| WO2011125899A1 (en) * | 2010-04-02 | 2011-10-13 | シャープ株式会社 | Liquid crystal display, display method, program, and recording medium |
| US20140210878A1 (en) * | 2011-10-28 | 2014-07-31 | Sharp Kabushiki Kaisha | A method of processing image data for display on a display device, which comprising a multi-primary image display panel |
| US20130169697A1 (en) * | 2011-12-28 | 2013-07-04 | Samsung Electronics Co., Ltd. | Device and method for displaying image, device and method for supplying power, and method for adjusting brightness of contents |
| US20140192091A1 (en) * | 2013-01-07 | 2014-07-10 | Au Optronics Corporation | Display device and driving method thereof |
| JP2017108374A (en) * | 2015-12-01 | 2017-06-15 | カシオ計算機株式会社 | Image processing apparatus, image processing method, and program |
| CN105447421A (en) * | 2016-01-11 | 2016-03-30 | 邓磊 | Method for realizing private protection of information displayed on screen |
| CN206163104U (en) * | 2016-11-07 | 2017-05-10 | 上海天马微电子有限公司 | Peep -proof display device and peep -proof display |
| CN107734264A (en) * | 2017-09-11 | 2018-02-23 | 广东欧珀移动通信有限公司 | Image processing method and device |
| US20200184926A1 (en) * | 2018-04-16 | 2020-06-11 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display device, driving method thereof, and display system |
| US20210327393A1 (en) * | 2018-10-08 | 2021-10-21 | Google Llc | Systems and methods for adjusting light emitted from a display |
| US10891908B1 (en) * | 2019-11-04 | 2021-01-12 | Novatek Microelectronics Corp. | Display system and driver circuit thereof |
| TW202204818A (en) * | 2020-07-29 | 2022-02-01 | 美商瑞爾Ｄ斯帕克有限責任公司 | Pupillated illumination apparatus |
| CN112310182A (en) * | 2020-10-29 | 2021-02-02 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN214540288U (en) * | 2021-03-08 | 2021-10-29 | 深圳秋田微电子股份有限公司 | Controllable peep-proof display module, display screen and electronic equipment |
| WO2022198646A1 (en) * | 2021-03-26 | 2022-09-29 | 京东方科技集团股份有限公司 | Display panel |
| TW202306774A (en) * | 2021-05-13 | 2023-02-16 | 日商住友化學股份有限公司 | Laminates and display devices |
| CN115942814A (en) * | 2022-12-30 | 2023-04-07 | 惠科股份有限公司 | display device |
| CN115942822A (en) * | 2022-12-30 | 2023-04-07 | 惠科股份有限公司 | Display panel and display device |
Non-Patent Citations (1)
| Title |
|---|
| 陈寅伟;闫桂新;楚明磊;禹璐;桑建;: "基于双层屏幕的防窥可切换显示技术", 液晶与显示, no. 12 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116648102A (en) * | 2023-06-20 | 2023-08-25 | 惠科股份有限公司 | Display panel, display driving method and display device |
| CN116648102B (en) * | 2023-06-20 | 2024-04-19 | 惠科股份有限公司 | Display panel, display driving method and display device |
| CN116685168A (en) * | 2023-06-28 | 2023-09-01 | 惠科股份有限公司 | Display panel and display device |
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