CN112965313A - Display substrate, display panel and driving method thereof - Google Patents
Display substrate, display panel and driving method thereof Download PDFInfo
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- CN112965313A CN112965313A CN202110335199.3A CN202110335199A CN112965313A CN 112965313 A CN112965313 A CN 112965313A CN 202110335199 A CN202110335199 A CN 202110335199A CN 112965313 A CN112965313 A CN 112965313A
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- 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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
- G02F1/155—Electrodes
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- 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
- G02F1/15—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 an electrochromic effect
- G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1516—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising organic material
- G02F1/15165—Polymers
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- 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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
- G02F1/1533—Constructional details structural features not otherwise provided for
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- 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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
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- Optics & Photonics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a display substrate, a display panel and a driving method of the display panel, and belongs to the technical field of display. Wherein the display substrate includes: comprises a substrate and a pixel defining layer arranged on the substrate; the pixel defining layer comprises a plurality of pixel defining parts arranged at intervals, and a first electrode, an electrochromic layer and a second electrode are arranged on one side, away from the substrate, of each pixel defining part in a stacking manner; the pixel defining layer is located between the substrate and the first electrode; the electrochromic layer can generate a color change reaction under the action of an electric field of the first electrode and the second electrode.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display substrate, a display panel and a driving method of the display panel.
Background
In the prior art, a display screen of an electronic device is generally in a monotonous black state when the display screen is turned off.
To the problem that the display screen is too monotonous when the screen is in the breath state, although colorful patterns can be presented in a display screen protection mode, the display screen is still in the working state when the display screen is in the breath state, the power consumption of the display screen is inevitably increased by the mode, the service life of the battery power is shortened, and the user experience is further influenced.
Disclosure of Invention
The embodiment of the application aims to provide a display substrate, which can solve the problem that the existing display screen cannot display colors with low power consumption when not in use.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a display substrate, including a substrate and a pixel defining layer disposed on the substrate;
the pixel defining layer comprises a plurality of pixel defining parts arranged at intervals, and a first electrode, an electrochromic layer and a second electrode are arranged on one side, away from the substrate, of each pixel defining part in a stacking manner;
the pixel defining layer is located between the substrate and the first electrode;
the electrochromic layer can generate a color change reaction under the action of an electric field of the first electrode and the second electrode.
In a second aspect, the present application provides a display panel, wherein the display panel includes the display substrate as described above.
In a third aspect, an embodiment of the present application provides a display panel driving method for driving the display panel, where the driving method includes:
in the breath screen state, a first voltage is applied between the touch drive electrode and the first electrode, so that the electrochromic layer is changed from a primary color to a target color, and the primary color is black or gray.
In a fourth aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, implement the steps of the method according to the first aspect.
In a fifth aspect, the present embodiments provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a sixth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the application, the display substrate comprises a substrate and a pixel defining layer arranged on the substrate; the pixel defining layer comprises a plurality of pixel defining parts arranged at intervals, and a pixel defining layer, a first electrode, an electrochromic layer and a second electrode are arranged on one side, away from the substrate, of each pixel defining part in a stacking manner; the pixel defining layer is located between the substrate and the first electrode; the electrochromic layer can generate a color change reaction under the action of an electric field of the first electrode and the second electrode. When the display substrate is applied to a display panel, the electrochromic layer can perform reversible color change reaction under the action of an electric field, so that when the display panel is turned on, the electrochromic layer is subjected to color change adjustment by applying voltage to the first electrode and the second electrode, and the whole display panel is in a colorful state; in addition, because the electrochromic layer can not consume electric energy under the condition that the color is not changed, the power consumption of the colorful pattern presentation mode is far lower than that of the existing screen protection mode.
Drawings
Fig. 1 is a schematic overall structure diagram of a display panel provided in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of a cross-section taken along line B in FIG. 2;
FIG. 4 is another schematic view of the cross-section of FIG. 2 taken along direction B;
fig. 5 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The display substrate provided in the embodiments of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 3, the display substrate 10 includes a substrate 101 and a pixel defining layer 102 disposed on the substrate 101; the pixel defining layer 102 includes a plurality of pixel defining portions 103 arranged at intervals, and a first electrode 105, an electrochromic layer 106, and a second electrode 107 are sequentially stacked on a side of each pixel defining portion 103 away from the substrate 101; the electrochromic layer 106 may undergo a color change reaction by an electric field between the first electrode 105 and the second electrode 107.
The display substrate provided by the embodiment of the application further includes a touch layer 110, where the touch layer is located on one side of the first electrode 105 away from the substrate 101 and on one side of the second electrode 107 away from the substrate 101, so as to avoid the influence of the electrochromic layer on the implementation of the function of the touch layer.
The touch layer 110 includes a touch driving electrode and a touch sensing electrode, the touch driving electrode is located on one side of the touch layer 110 facing the substrate 101, and the touch sensing electrode is located on one side of the touch layer 110 away from the substrate 101; when touch occurs, the distance between the touch driving electrode and the touch sensing electrode near the touch point changes, so that capacitive coupling between the touch driving electrode and the touch sensing electrode is influenced to generate a sensing signal, and the position of the touch point can be calculated.
In the embodiment of the present application, a sub-pixel unit 104 is disposed in an area between adjacent pixel defining portions 103; the display substrate 10 further includes a plurality of thin film transistors 109, each of the plurality of thin film transistors 109 is located between the substrate 101 and the pixel defining layer 102, each of the sub-pixel units 104 is electrically connected to one of the plurality of thin film transistors 109 through a corresponding third electrode 108, the thin film transistor 109 is configured to apply a driving signal to the second electrode 108, and a side of each of the plurality of sub-pixel units 104 away from the substrate 101 is electrically connected or contacted with the first electrode 105, and then one of the first electrode 105 and the third electrode 108 is used as an anode, and the other of the first electrode 105 and the third electrode 108 is used as a cathode, and the switching function of the thin film transistor 109 is combined, so that the light emission or non-light emission of the corresponding sub-pixel unit can be controlled. The sub-pixel unit 104 may be an OLED pixel sub-unit, and specifically may be a red pixel sub-unit, a green pixel sub-unit, or a blue pixel sub-unit. The cathode and the touch driving electrode may be made of one or more of silver Ag, copper Cu, magnesium Mg, aluminum Al, Metal Mesh, Metal oxide ITO, and indium tin oxide.
The thin film transistor includes a buffer layer 91, an Indium Gallium Zinc Oxide (IGZO) active layer 92, a gate insulating layer 93, a gate electrode 94, an interlayer dielectric layer 95, a source electrode (S electrode) 96, a drain electrode (D electrode) 97, and a planarization layer 98 covering the source electrode 96, the drain electrode 97, and the gate electrode 94, which are sequentially disposed on a substrate 101; the third electrode 108 is connected to the drain electrode 94.
Alternatively, in a thin film transistor, a unit including N of the source electrode 96, the drain electrode 97, and the gate electrode 94 is included, the drain electrode 97 of the previous unit is connected to the gate electrode 94 of the next unit, the source electrode 96 of the first unit is connected to the anode of the control circuit, and the drain electrode 94 of the nth unit is connected to the third electrode 108. Wherein N is a positive integer, for example, 1, 2 or 9.
In the embodiment of the present invention, the sub-pixel unit 104 is covered with the first electrode 105, and a thin film encapsulation layer 113 and a polyimide thin film layer 114 are sequentially stacked on the first electrode 105, so as to implement encapsulation of the sub-pixel unit.
In the embodiment of the present application, because the electrochromic layer 106 is located between the second electrode 107 and the first electrode 105 located on the display interface 103, and the electrochromic layer 106 can perform a reversible color change reaction under the action of an electric field, when the display substrate 10 is applied to the display panel 20, when the display panel 20 turns on, a voltage reaching a color change voltage value of the electrochromic layer 106 can be applied between the second electrode 107 and the first electrode 105, so that the electrochromic layer 106 can perform a color change adjustment;
meanwhile, because each pixel defining part 103 is sequentially stacked with a first electrode 105, an electrochromic layer 106 and a second electrode 107 on the side away from the substrate, the entire display panel 20 can be in a colorful state by controlling the electrochromic layers 106 at different positions to change the color;
in addition, since the electrochromic layer 106 does not consume power any more without changing the color, the power consumption of the above-mentioned multi-color pattern rendering method is much lower than that of the existing screen saver method.
The first electrode 105 is an inherent electrode structure of the conventional display substrate 10, and when the display panel 20 is in the information state, the first electrode 105 is not required to supply power to the display screen of the display panel 20, and the second electrode 107 is an electrode separately provided to provide an electric field effect for the electrochromic layer to perform the color change reaction, so that the realization of the color change adjustment of the electrochromic layer 106 does not affect the original display function of the display panel 20.
In the embodiment of the present application, the electrochromic layer 106 includes an electrochromic material sub-layer 61, an ion conducting sub-layer 62, and an ion storage sub-layer 63, which are sequentially stacked. The ion-conducting sublayer 66 is located between the electrochromic material sublayer 61 and the ion storage sublayer 62, and the ion-conducting sublayer 63 is in direct contact with both the electrochromic material sublayer 61 and the ion storage sublayer 62.
The optical properties of the material of the electrochromic material layer 106, such as reflectivity, transmittance, and absorption rate, are stable and reversible color change under the action of an external electric field, and may be an inorganic electrochromic material or an organic electrochromic material. Optionally, the material of the electrochromic material sublayer 61 may specifically be one or more of polypyrrole electrochromic materials, polythiophene electrochromic materials, polyfuran electrochromic materials, and polybenzazole electrochromic materials. Polyaniline can be formed by electrochemical processes or chemical oxidation of aniline; polyaniline may appear pale yellow or dark green/black in different oxidation states.
The ion-conducting sublayer 62 allows ions to move between the electrochromic sublayer 61 and the ion-storage sublayer 63, but prevents electrons from passing through, i.e., the ion-conducting sublayer 62 conducts ions but does not conduct electrons, and can be in the form of a solid, liquid or colloidal state.
The ion storage sublayer 63 is used for storing ions and supplying ions during the color change process, thereby balancing the total amount of charges. The ion storage sublayer 63 may also use an electrochromic material with properties opposite to those of the electrochromic material sublayer 61, and may play a role in ion complementation during the color change process.
Optionally, in one embodiment, the electrochromic material sublayer 61 is electrically connected 105 to the first electrode, and the ion storage sublayer 63 is electrically connected 107 to the second electrode. In this embodiment, the electrochromic material sublayer 61 is in contact with the first electrode 105, and the ion storage sublayer 63 is in contact with the second electrode 107, so that a color change reaction is performed on the side close to the first electrode 105 when the electrochromic layer 106 performs color change adjustment.
Alternatively, in another embodiment, the ion storage sublayer 63 is electrically connected to the first electrode 105, and the electrochromic material sublayer 61 is electrically connected to the second electrode 107. In this embodiment, the electrochromic material sublayer 61 is in contact with the second electrode 107, and the ion storage sublayer 63 is in contact with the first electrode 105, so that when the electrochromic layer 106 performs the color change adjustment, the color change reaction proceeds on the side away from the first electrode 105.
Optionally, the above-mentioned sub-layer 61 of electrochromic material is black or grey before electrochromic. The electrochromic material sub-layer 61 in the embodiment of the present application is black or gray before electrochromic, so that when the display panel 20 including the display substrate 10 is powered on for displaying, the black or gray electrochromic layer is used to shield the projection area of the electrochromic layer 106, thereby prompting the screen display effect.
Alternatively, in an implementation manner, as shown in fig. 3, in the display substrate provided in the embodiment of the present application, the electrochromic layer 106 is located on a side of the first electrode 105 facing the substrate 101; (ii) a Accordingly, since the first electrode 105, the electrochromic layer 106 and the second electrode layer 107 are stacked, the second electrode 107 is located on a side of the electrochromic layer 106 facing the substrate 101. In the above embodiment, the electrochromic layer 106 and the second electrode 107 can be embedded in the pixel defining portion 103, and the color changing function can be realized without increasing the thickness of the display substrate.
Alternatively, in one implementation, as shown in fig. 4, in the display substrate 10 provided in the embodiment of the present application, the electrochromic layer 106 is located on a side of the first electrode 105 away from the substrate 101; accordingly, since the first electrode 105, the electrochromic layer 106 and the second electrode layer 107 are stacked, the second electrode 107 is located on a side of the electrochromic layer 106 away from the substrate 101. In the above embodiment, the electrochromic layer 106 and the second electrode 107 can be embedded into the encapsulation layer on the first electrode 105, so that not only can the color changing function be realized without increasing the thickness of the display substrate, but also the electrochromic layer is closer to the surface layer of the display substrate, and the color display effect of the electrochromic layer is better.
Referring to fig. 3 or 4, the display panel 20 includes the display substrate 10.
In the display panel, the electrochromic layer is additionally arranged between the second electrode and the first electrode positioned on the display definition part, and the electrochromic layer can perform reversible color change reaction under the action of an electric field, so that when the display panel turns on, the electrochromic layer is subjected to color change adjustment by applying voltage to the second electrode and the first electrode, and the whole display panel is in a colorful state; in addition, because the electrochromic layer can not consume electric energy under the condition that the color is not changed, the power consumption of the colorful pattern presentation mode is far lower than that of the existing screen protection mode.
Optionally, as shown in fig. 3 or 4, the display panel 20 further includes a cover plate 111 and a touch layer 110; the cover plate 111, the touch layer 110, and the display substrate 10 are sequentially stacked, and the cover plate 111 and the touch layer 110 are bonded by an optically transparent adhesive 112. When the display panel 20 is in the display state, the electrochromic layer 106 is in a dark color state such as black or gray, and can block light to circuits such as the thin film transistor 109 below, so that the polarizer in the existing display panel such as the micro light emitting diode display panel or the quantum dot display panel can be eliminated, the display effect of the display panel is not affected, and the whole display panel is slimmer.
The embodiment of the present application further provides a display panel driving method, which is used for driving the display panel, where the method may include step 100.
In the embodiment of the present application, the method is applied to an electronic device with a touch display panel, where the electronic device may be a mobile electronic device such as a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), or may also be a non-mobile electronic device such as a Personal Computer (PC), a Television (TV), a teller machine, or a self-service machine.
In step 100, the first voltage is a color-changing voltage of an electrochromic material in the electrochromic layer. In the breath screen state, the first electrode does not need to supply power to the display picture of the display panel, so that the first electrode can be used for providing an electric field effect for the color changing reaction of the electrochromic layer, and a first voltage for enabling the electrochromic layer to carry out the color changing reaction is applied between the second electrode and the first electrode, so that the electrochromic layer is changed from a black or gray primary color state to a target color state, and the whole display panel is in a colorful state; in addition, because the electrochromic layer can not consume electric energy under the condition that the color is not changed, the power consumption of the colorful pattern presentation mode is far lower than that of the existing screen protection mode.
Optionally, in an embodiment, in a case that the electrochromic layer can be changed to multiple colors from a primary color through the action of electric fields with different intensities, the step 100 specifically includes steps 111 to 113:
In step 111, the target color is a preset osd display color, that is, when entering the osd state, a color preset by the user is obtained as the target color.
In step 112, the correspondence relationship between the voltage value and the color, which is determined in advance according to the electrochromic performance of the electrochromic layer, indicates that the electrochromic layer is changed from the value to the target color to the required voltage value. Therefore, after the target color is determined, the target voltage can be determined as the first voltage based on the correspondence relationship.
In step 113, a first voltage is applied between the second electrode and the first electrode, so that the electrochromic layer located between the second electrode and the first electrode undergoes a color change reaction under the action of an electric field and changes to a target color.
The above embodiment is applicable to a scene in which a single electrochromic layer can change different colors through different electric field effects, and a corresponding first voltage is applied between the second electrode and the first electrode according to a corresponding relationship between a target color to be changed and a voltage value, that is, the electrochromic layer can be changed to different color states.
Optionally, in an embodiment, the driving method further includes steps 200 to 300:
step 200, under the condition that a bright screen signal is received, continuously applying a second voltage for a preset time length between the second electrode and the first electrode so as to restore the electrochromic layer from the target color to the primary color; the second voltage is equal to the first voltage in magnitude and opposite in direction.
In the step 200, when the bright screen signal is received, it indicates that the user needs to use the display panel, but because the electrochromic layer is still in the target color state, and the target color is generally in the color state, in order not to affect the normal display of the display panel, the electrochromic layer needs to be restored to the primary color state of black or gray, so that a second voltage of a preset duration is continuously applied between the second electrode and the first electrode, and because the second voltage is equal to the first voltage in magnitude and opposite in direction, the electrochromic layer can be restored from the target color state to the primary color state.
Wherein, because electrochromic layer needs to last to be acted on under the look variable voltage and predetermine duration and just can accomplish the color change reaction, therefore when control electrochromic layer resumes to the primary color, need control above-mentioned second voltage and last to predetermine duration for electrochromic layer can receive the electric field effect that predetermines the second voltage of duration and correspond and accomplish the color change reaction. The preset time period is determined by the electrochromic material in the electrochromic layer.
After the electrochromic layer is restored to the primary color, because the electrochromic layer does not affect the display of the display panel under the condition that the electrochromic layer is restored to the primary color state, the first electrode can be reused to supply power to each sub-pixel unit, the display panel enters the normal display state, and the problem that the display effect is affected due to the fact that the electrochromic layer is changed to other colors except black and gray when the display panel normally displays is solved.
In the foregoing embodiment, when the bright screen signal is received, the second voltage is applied between the touch driving electrode and the first electrode to restore the electrochromic layer to the black or gray state, and then the touch layer is driven to enter the touch sensing state, so that the problem that the display effect of the display panel is affected when the display panel normally displays other colors except for black and gray due to the display of the electrochromic layer is avoided.
Optionally, an embodiment of the present application further provides an electronic device, which includes the display panel, a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, where the program or the instruction is executed by the processor to implement each process of the display panel driving method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Fig. 5 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 500 includes, but is not limited to: a radio frequency unit 5001, a network module 5002, an audio output unit 5003, an input unit 5004, a sensor 5005, a display unit 5006, a user input unit 5007, an interface unit 5008, a memory 5009, and a processor 5010.
Those skilled in the art will appreciate that the electronic device 50 may also include a power supply (e.g., a battery) for powering the various components, and that the power supply may be logically coupled to the processor 5010 via a power management system to perform the functions of managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 5 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The display panel 50061 included in the display unit 5006 includes the display substrate described above in this embodiment;
a processor 5010 configured to apply a first voltage between the first electrode and the second electrode in the breath-hold state to change the electrochromic layer from a primary color to a target color, wherein the primary color is black or gray.
In the electronic device provided by the embodiment of the application, in the breath screen state, a first voltage which enables the electrochromic layer to perform a color change reaction is applied between the touch drive electrode and the first electrode, so that the electrochromic layer is changed from a black or gray primary color state to a target color state, and the whole display panel is in a colorful state; in addition, because the electrochromic layer can not consume electric energy under the condition that the color is not changed, the power consumption of the colorful pattern presentation mode is far lower than that of the existing screen protection mode.
Optionally, the processor 5010 is further configured to apply a second voltage between the first electrode and the second electrode for a preset time duration to restore the electrochromic layer from the target color to the primary color if a bright-screen signal is received; the second voltage is equal to the first voltage in magnitude and opposite in direction.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above display panel driving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the embodiment of the display panel driving method, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. The display substrate is characterized by comprising a substrate and a pixel defining layer arranged on the substrate;
the pixel defining layer comprises a plurality of pixel defining parts arranged at intervals, and a first electrode, an electrochromic layer and a second electrode are arranged on one side, away from the substrate, of each pixel defining part in a stacking manner;
the pixel defining layer is located between the substrate and the first electrode;
the electrochromic layer can generate a color change reaction under the action of an electric field of the first electrode and the second electrode.
2. The display substrate according to claim 1, wherein a sub-pixel unit is provided in a region between adjacent pixel defining portions;
the display substrate further comprises a plurality of thin film transistors, the thin film transistors are located between the substrate and the pixel defining layer, each sub-pixel unit is electrically connected with the first electrode, each sub-pixel unit is electrically connected with one thin film transistor through a corresponding third electrode, and the thin film transistors are used for applying driving signals to the third electrodes.
3. The display substrate according to claim 1, wherein the electrochromic layer comprises an electrochromic material layer, an ion conducting layer and an ion storage layer, which are sequentially stacked.
4. The display substrate of claim 3, wherein the electrochromic material layer is electrically connected to the first electrode and the ion storage layer is electrically connected to the second electrode.
5. The display substrate of claim 3, wherein the ion storage layer is electrically connected to the first electrode and the electrochromic material layer is electrically connected to the second electrode.
6. The display substrate of claim 3, wherein the electrochromic layer is located on a side of the first electrode away from the substrate.
7. A display substrate according to claim 3, wherein the electrochromic layer is located on a side of the first electrode facing the substrate.
8. The display substrate according to claim 3, wherein the electrochromic material layer is made of one or more of polyaniline, polypyrrole electrochromic material, polythiophene electrochromic material, polyfuran electrochromic material and polybenzazole electrochromic material.
9. A display panel comprising the display substrate according to any one of claims 1 to 8.
10. The display panel according to claim 9, further comprising a cover sheet and a touch layer;
the cover plate, the touch layer and the display substrate are sequentially stacked, and the cover plate and the touch layer are bonded through transparent insulating glue.
11. A display panel driving method for driving the display panel according to any one of claims 8 to 9, the driving method comprising:
in the breath screen state, a first voltage is applied between the first electrode and the second electrode to change the electrochromic layer from a primary color to a target color, wherein the primary color is black or gray.
12. The method for driving a display panel according to claim 11, further comprising:
under the condition of receiving a bright screen signal, continuously applying a second voltage for a preset time length between the first electrode and the second electrode to restore the electrochromic layer from the target color to the primary color; the second voltage is equal to the first voltage in magnitude and opposite in direction.
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| CN202110335199.3A CN112965313B (en) | 2021-03-29 | 2021-03-29 | Display substrate, display panel and driving method of display panel |
| PCT/CN2022/082724 WO2022206541A1 (en) | 2021-03-29 | 2022-03-24 | Display substrate, display panel, display panel driving method, and electronic device |
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| CN202110335199.3A CN112965313B (en) | 2021-03-29 | 2021-03-29 | Display substrate, display panel and driving method of display panel |
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| CN115616820A (en) * | 2022-06-14 | 2023-01-17 | 荣耀终端有限公司 | Peep-proof display screen, electronic equipment and peep-proof method |
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| WO2022206541A1 (en) | 2022-10-06 |
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