CN111477161B - Pixel circuit, driving method, panel, manufacturing method, drawing board and display device - Google Patents
Pixel circuit, driving method, panel, manufacturing method, drawing board and display device Download PDFInfo
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- CN111477161B CN111477161B CN202010313717.7A CN202010313717A CN111477161B CN 111477161 B CN111477161 B CN 111477161B CN 202010313717 A CN202010313717 A CN 202010313717A CN 111477161 B CN111477161 B CN 111477161B
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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
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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
- 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]
- G09G3/3225—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] using an active matrix
- G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
Abstract
The application provides a pixel circuit, a driving method, a panel, a manufacturing method, a drawing board and a display device. The pixel circuit includes: the device comprises a control switch module, a driving module, a signal writing module, a storage capacitor and a light emitting device. The control switch module is arranged in parallel with the signal writing module and is respectively connected with the driving module, the storage capacitor and the data signal end; the control switch module comprises a metal layer and a flexible conductive layer which are insulated from each other; the metal layer is used for receiving the data voltage of the data signal end, and the flexible conducting layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, so that the data voltage of the data signal end is input into the driving module. When the flexible conductive layer is used, the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module. When the painting brush presses the screen, the writing of the electric signals can be realized, so that the function of the electronic canvas is realized.
Description
Technical Field
The application relates to the technical field of display, in particular to a pixel circuit, a driving method, a panel, a manufacturing method, a drawing board and a display device.
Background
With the continuous development of technology, flexible screens appear on display screens, which have significant advantages over traditional rigid screens, such as: the flexible screen is lighter and thinner in size and lower in power consumption, and has wider application scenes due to the characteristics of flexibility, good flexibility and the like. With the gradual maturation of flexible technology, flexible electronic drawing boards also exhibit broad market prospects.
However, the applicant found that the current electronic drawing board is mainly manufactured by adopting a liquid crystal technology, and is heavy in size and inconvenient to carry. In addition, the liquid crystal display has high power consumption, and a user needs to charge after using the liquid crystal display for a short time, so that the liquid crystal display is unfavorable for long-time use of the liquid crystal display.
Disclosure of Invention
In view of this, the application provides a pixel circuit and a driving method thereof, a flexible panel and a manufacturing method thereof, a flexible drawing board and a display device, which are used for solving the technical problems of high power consumption and heavy weight of the traditional electronic drawing board.
In order to solve the above problems, the embodiments of the present application mainly provide the following technical solutions:
in a first aspect, embodiments of the present application disclose a pixel circuit, comprising: the device comprises a control switch module, a driving module, a signal writing module, a storage capacitor and a light emitting device;
the driving module is respectively connected with the control switch module, the signal writing module, the storage capacitor, the light-emitting device and the first power supply voltage end and is used for providing driving current for the light-emitting device;
the signal writing module is respectively connected with the driving module, the storage capacitor, the scanning signal end and the data signal end and is used for inputting the data voltage of the data signal end into the driving module under the control of the scanning signal end;
the control switch module is arranged in parallel with the signal writing module and is respectively connected with the driving module, the storage capacitor and the data signal end; the control switch module comprises a metal layer and a flexible conductive layer which are insulated from each other; the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer with the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module.
Optionally, the driving module includes a first transistor, and the signal writing module includes a second transistor;
the grid electrode of the first transistor is respectively connected with the second pole of the second transistor, the control switch module and one end of the storage capacitor, the first pole is connected with the first power supply voltage end, and the second pole is respectively connected with the light emitting device and the other end of the storage capacitor;
the grid electrode of the second transistor is connected with the scanning signal end, the first electrode of the second transistor is connected with the data signal end, and the second electrode of the second transistor is respectively connected with the grid electrode of the first transistor and one end of the storage capacitor;
the control switch module is arranged in parallel between a first pole and a second pole of the second transistor.
In a second aspect, embodiments of the present application disclose a flexible panel comprising: a substrate base and a flexible conductive layer;
the substrate comprises a plurality of sub-pixel units arranged in an array, and each sub-pixel unit comprises: the light-emitting device comprises a metal layer, a storage capacitor upper polar plate, an insulating layer, a light-emitting device, a flat layer and a via hole;
the metal layer is positioned at one side of the substrate base plate and is used for receiving data voltages;
the storage capacitor upper polar plate is positioned at one side of the substrate base plate and is insulated from the metal layer;
the insulating layer is positioned on one side of the metal layer away from the substrate and one side of the upper polar plate of the storage capacitor away from the substrate;
the light-emitting device is positioned on one side of the insulating layer away from the substrate base plate;
the flat layer is positioned on one side of the light-emitting device, which is far away from the substrate base plate;
the via hole penetrates through the flat layer, the light emitting device and the insulating layer, so that at least part of the metal layer and at least part of the upper polar plate of the storage capacitor are exposed;
the flexible conductive layer is positioned on one side of the flat layer away from the substrate base plate and is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor.
Optionally, each sub-pixel unit further includes a thin film transistor, where the thin film transistor includes an active layer, a gate electrode, and a source drain electrode;
the upper electrode plate of the storage capacitor is arranged on the same layer as the source electrode and the drain electrode, and the lower electrode plate of the storage capacitor is arranged on the same layer as the active layer;
the metal layer and the source drain electrode are arranged on the same layer.
Optionally, the light emitting device is a micro light emitting diode;
the metal layer and the upper polar plate of the storage capacitor are arranged in a crossing way.
In a third aspect, embodiments of the present application disclose a flexible brush board comprising the flexible panel of the second aspect and a brush;
the painting brush is used for applying external force to the flexible conductive layer so that the flexible conductive layer deforms.
In a fourth aspect, embodiments of the present application disclose a display device, including a flexible drawing board according to the third aspect; or the flexible panel of the second aspect.
In a fifth aspect, an embodiment of the present application discloses a driving method of a pixel circuit, for the pixel circuit of the first aspect, including:
outputting a first level signal to the scanning signal end, so that a first data voltage of the data signal end is input into the driving module;
outputting a second level signal to the scanning signal end, so that the signal writing module is disconnected from the driving module;
and applying external force to the flexible conductive layer to conduct the metal layer and the upper polar plate of the storage capacitor, so that the second data voltage of the data signal end is input into the driving module.
Optionally, when the flexible panel driven by the pixel circuit is used as a drawing board to draw a pattern, outputting a first level signal to the scanning signal end, and outputting a high level voltage to each sub-pixel by the data signal end; outputting a second level signal to the scanning signal end, so that the signal writing module is disconnected from the driving module; applying a first external force to the flexible conductive layer by using a painting brush, wherein the data signal end outputs high-level voltage to the sub-pixels with preset colors, and receives and outputs low-level voltage to the sub-pixels with other colors except the preset colors; the track of the first external force is the same as the outline of the pattern to be formed;
when a part of the area of the pattern needs to be erased, a second external force is applied to the flexible conductive layer by using a painting brush, and the data signal end receives and outputs high-level voltage to each sub-pixel; the track of the second external force is the same as the outline of the pattern of the part to be erased;
when full-screen erasing is needed, a first level signal is output to the scanning signal end, and the data signal end outputs high level voltage to each sub-pixel.
In a sixth aspect, an embodiment of the present application discloses a method for manufacturing a flexible panel, which is characterized by including:
manufacturing a metal layer, a storage capacitor and an insulating layer on one side of a substrate, wherein the metal layer is used for receiving data voltage, and the metal layer is insulated from an upper polar plate of the storage capacitor;
bonding the light-emitting device on one side of the insulating layer away from the substrate by adopting a bonding mode;
manufacturing a flat layer on one side of the light-emitting device far away from the substrate base plate, and manufacturing a transparent layer penetrating through the flat layer, the light-emitting device and the insulating layer, so that at least part of the metal layer and at least part of the upper polar plate of the storage capacitor are exposed;
and a flexible conductive layer is attached to one side, far away from the substrate, of the flat layer, the flexible conductive layer covers the via hole and is used for generating deformation under the action of external force so as to conduct the metal layer with the upper polar plate of the storage capacitor.
By means of the technical scheme, the technical scheme provided by the embodiment of the application has at least the following advantages:
because the pixel circuit of the embodiment of the application is provided with the control switch module, the control switch module and the signal writing module are arranged in parallel and are respectively connected with the driving module, the storage capacitor and the data signal end. When the flexible conductive layer is used, the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module. When a user uses the brush, the brush can write in an electric signal when pressing the screen, so that the function of the electronic canvas is realized.
The foregoing description is merely an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following specific implementation of the embodiments of the present application will be more clearly understood.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the alternative embodiments. The drawings are only for purposes of illustrating alternative embodiments and are not to be construed as limiting the embodiments of the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural diagram of a pixel circuit according to an embodiment of the present application;
fig. 2 is a schematic diagram of a specific structure of a pixel circuit according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of the metal layer and the upper electrode plate of the storage capacitor in the embodiment of the present application when the metal layer and the upper electrode plate are disposed in a crossing manner;
fig. 5 is a schematic structural diagram of the brush according to the embodiment of the present application when pressed against the display panel;
fig. 6 is a flowchart of a driving method of a pixel circuit according to an embodiment of the present application;
fig. 7 is a flowchart of a method for manufacturing a flexible panel according to an embodiment of the present application.
The reference numerals are introduced as follows:
1-pixel circuits; 2-a control switch module; 3-a driving module; 4-a signal writing module; 5-a storage capacitor; 6-a light emitting device; 31-a first transistor; 41-a second transistor; 9-a third transistor;
20-a flexible panel; 21-a substrate base; 22-a flexible conductive layer;
24-a metal layer; 25-upper electrode plate of storage capacitor; a 25' -storage capacitor lower plate; 26-an insulating layer; 27-a planar layer; 28-via holes; 29-a thin film transistor; 291-active layer; 292-gate; 293-source drain electrode
30-a flexible drawing board; 32-painting brushes; 33-bond metal layer; 34-a metal film; 35-microtubules.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It should be understood that the term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In a first aspect, an embodiment of the present application provides a pixel circuit, and fig. 1 shows a schematic structural diagram of the pixel circuit of the embodiment of the present application. As shown in fig. 1, the pixel circuit 1 includes: the driving circuit comprises a control switch module 2, a driving module 3, a signal writing module 4, a storage capacitor 5 and a light emitting device 6. The driving module 3 is respectively connected with the control switch module 2, the signal writing module 4, the storage capacitor 5, the light emitting device 6 and the first power supply voltage terminal (DD) and is used for providing driving current for the light emitting device 6. The signal writing module 4 is respectively connected to the driving module 3, the storage capacitor 5, the scanning signal terminal (G) and the Data signal terminal (Data), and is configured to input the Data voltage (Vdata) of the Data signal terminal (Data) into the driving module 3 under the control of the scanning signal terminal (G). The control switch module 2 is arranged in parallel with the signal writing module 4 and is respectively connected with the driving module 3, the storage capacitor 5 and the Data signal end (Data); the control switch module 2 comprises a metal layer (not shown) and a flexible conductive layer (not shown) insulated from each other; the metal layer is used for receiving the Data voltage of the Data signal end (Data), and the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, so that the Data voltage (Vdata) of the Data signal end (Data) is input into the driving module 3. The specific structure of the control switch module 2 is described in detail in the following section of the flexible panel.
Because the pixel circuit 1 of the embodiment of the application is provided with the control switch module 2, the control switch module 2 and the signal writing module 4 are arranged in parallel, and are respectively connected with the driving module 3, the storage capacitor 5 and the data signal end. When the flexible conductive layer is used, the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module 3. When a user uses the brush, the brush can deform the flexible conductive layer when the user presses the screen so as to conduct the metal layer and the upper polar plate of the storage capacitor, and then writing of electric signals can be realized, and the function of the electronic drawing board is realized.
Alternatively, fig. 2 shows a specific structural schematic diagram of the pixel circuit of the embodiment of the present application. As shown in fig. 2, the driving module 3 includes a first transistor 31, and the signal writing module 4 includes a second transistor 41. The gate of the first transistor 31 is connected to the second pole of the second transistor 41, the control switch module 2 and one end of the storage capacitor 5, respectively, the first pole is connected to the first power supply voltage terminal (DD), and the second pole is connected to the other ends of the light emitting device 6 and the storage capacitor 5, respectively. The gate of the second transistor 41 is connected to the scan signal terminal (G), the first pole is connected to the Data signal terminal (Data), and the second pole is connected to the gate of the first transistor 31 and one end of the storage capacitor 5, respectively. The control switch module 2 is arranged in parallel between the first pole and the second pole of the second transistor 41.
Specifically, as shown in fig. 1 and 2, the control switch module 2 is a Touch Sensor (Touch Sensor). Since the second transistor 41 is connected in parallel with the touch sensor, when the touch sensor is closed and the second transistor 41 is opened, the voltage of the Data signal terminal (Data) directly passes through the touch sensor and does not pass through the second transistor 41. When the control switch module 2 is turned off and the second transistor 41 is turned on, the voltage of the Data signal terminal (Data) passes through the second transistor 41, and the circuit is the same as a conventional pixel circuit, so that the display device including the pixel circuit in the embodiment of the present application can be used as a conventional display screen.
Optionally, the pixel circuit provided in the embodiment of the present application further includes a third transistor 9, where the third transistor 9 is used as a compensation thin film transistor for compensating the threshold voltage of the first transistor 31. A first pole of the third transistor 9 is connected to the compensation signal line, and a second pole of the third transistor 9 is connected to a second pole of the first transistor 31. The gate of the third transistor 9 is connected to the scan signal terminal (G1). The specific compensation process of the third transistor 9 for compensating the threshold voltage of the first transistor 31 is similar to that of the prior art, and will not be repeated here.
In particular, the first transistor 31, the second transistor 41 and the third transistor 9 in the embodiment of the present application are all N-type thin film transistors; the first pole of the first transistor 31 may be a source and the second pole may be a drain; the first pole of the second transistor 41 may be a source and the second pole may be a drain; the first pole of the third transistor 9 may be a source and the second pole may be a drain; specifically, the first pole and the second pole of the first transistor 31, the second transistor 41, and the third transistor 9 are interchangeable in the embodiment of the present application.
In a second aspect, embodiments of the present application provide a flexible panel, and fig. 3 shows a schematic cross-sectional structure of the flexible panel 20 of embodiments of the present application. As shown in fig. 3, the flexible panel 20 includes: a substrate base 21 and a flexible conductive layer 22. The substrate 21 includes: a plurality of sub-pixel units (only one of the sub-pixel units is illustrated in the figure) arranged in an array, and each sub-pixel unit includes: a metal layer 24, a storage capacitor upper plate 25, an insulating layer 26, a light emitting device 6, a planarization layer 27, and a via hole 28. And a metal layer 24 positioned on one side of the substrate 21 for receiving the data voltage. The storage capacitor upper plate 25 is located on the side of the substrate 21 and is insulated from the metal layer 24. The insulating layer 26 is located on the side of the metal layer 24 away from the substrate 21, and on the side of the storage capacitor upper plate 25 away from the substrate 21. The light emitting device 6 is located on the side of the insulating layer 26 remote from the substrate 21. And a flat layer 27 on a side of the light emitting device 6 remote from the substrate base 21. A via 28 penetrates the planarization layer 27, the light emitting device 6 and the insulating layer 26 such that at least a portion of the metal layer 24, and at least a portion of the storage capacitor upper plate 25 are exposed. The flexible conductive layer 22 is located on one side of the flat layer 27 away from the substrate 21, and is used for deforming under the action of external force so as to conduct the metal layer 24 and the upper electrode plate 25 of the storage capacitor.
Specifically, the flexible conductive layer 22 in the embodiment of the present application covers the via hole 28, and the flexible conductive layer 22 includes a flexible substrate and a conductive film located on a side of the flexible substrate close to the substrate.
As shown in fig. 2 and 3, the flexible panel 20 of fig. 3 includes a via 28, the via 28 extending through the planar layer 27, the light emitting device 6, and the insulating layer 26, such that at least a portion of the metal layer 24, and at least a portion of the storage capacitor top plate 25 are exposed. The flexible conductive layer 22 disposed above the light emitting device 6 may be deformed by pressing a brush or a finger, and may be brought into contact with the exposed part of the metal layer 24 and the storage capacitor upper plate 25 after the deformation, which corresponds to the structure of the control switch module 2 disposed in parallel with the second transistor 41 in fig. 2.
Optionally, as shown in fig. 3, each sub-pixel unit further includes a thin film transistor 29, and the thin film transistor 29 includes an active layer 291, a gate 292, and a source drain 293. The storage capacitor upper plate 25 is arranged in the same layer as the source drain electrode 293, and the storage capacitor lower plate 25' is arranged in the same layer as the active layer 291. The metal layer 24 is provided in the same layer as the source/drain electrode 293. In specific implementation, the metal layer 24, the upper electrode plate 25 of the storage capacitor and the source drain electrode 293 are formed by the same patterning process.
The embodiment of the application is suitable for a bottom emission Active Matrix Organic Light Emitting Diode (AMOLED) display panel based on thin film transistors with different structures, such as: the thin film transistor can be a top gate structure, a back channel etching type structure, an etching blocking type structure and the like.
Alternatively, in one embodiment, the light emitting device 6 is a micro light emitting diode. Since the light emitting device 6 of the embodiment of the present application adopts the micro light emitting diode, the flexible panel 20 can be implemented as a flexible drawing board or a display panel, and the flexible panel has the beneficial effects of low power consumption, light weight, long service life, and the like.
Optionally, in the embodiment of fig. 3, the metal layer 24 and the upper plate 25 of the storage capacitor are separately arranged in an insulating manner, a certain space is left between the metal layer 24 and the upper plate 25 of the storage capacitor, and the flexible conductive layer 22 can contact the metal layer 24 and the upper plate 25 of the storage capacitor at the same time after being deformed by a downward force; wherein the metal layer 24 may be electrically connected to the Data signal terminal (Data) in fig. 2 through a wire lead.
Fig. 4 shows a schematic plan view of the flexible panel 20 according to the embodiment of the present application. As shown in fig. 4, the metal layer 24 and the storage capacitor upper plate 25 are disposed to cross each other; this arrangement can increase the contact area of the metal layer 24 and the storage capacitor upper plate 25 with the flexible conductive layer 22 while reducing the series resistance. Specifically, referring to fig. 4, in the vertical direction of fig. 4, the metal layers 24 and the storage capacitor upper plates 25 are alternately arranged with a certain gap between the metal layers 24 and the storage capacitor upper plates 25, thereby forming an interdigital electrode structure which is disposed to cross each other. In addition, a dotted square area in fig. 4 represents a touch area (touch area), that is, an area where an external force is applied. The elliptical areas in fig. 4 represent light emitting areas.
The material of the active layer 291 included in the thin film transistor 29 in the embodiment of the present application may be oxide, silicon material, or organic material; specifically, the material of the active layer 291 includes various materials such as indium gallium zinc oxide, nitrogen-doped zinc oxide, indium zinc tin oxide, amorphous silicon, polysilicon, hexathiophene, and polythiophene. Moreover, the embodiment of the application is applicable to the bottom emission display backboard manufactured based on the oxidation technology, the silicon technology and the organic matter technology.
The flexible panel 20 of the embodiment of the present application includes a metal layer 24, a storage capacitor upper plate 25, a gate 292, a source drain 293, and each trace material may be a common metal material, such as silver (Ag), copper (Cu), aluminum (Al), molybdenum (Mo), etc.; or a multilayer metal material formed of a multilayer metal such as molybdenum niobate (MoNb), copper (Cu), molybdenum niobate (MoNb), or the like; or alloy materials of the above metals, such as aluminum neodymium (AlNb), molybdenum niobium (Monb), etc., and stack structures formed by metals and transparent conductive oxides (such as ITO, AZO, etc.), such as Mo/AlNd/ITO, ITO/Ag/ITO, etc.
Materials for the insulating layer 26 and passivation layer in the embodiments of the present application include, but are not limited to, conventional dielectric materials such as silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiON), etc., or various novel organic insulating materials, or high dielectric constant materials such as aluminum oxide (AlOx), hafnium oxide (HfOx), titanium oxide (TaOx), etc.
Materials for the planarizing layer 27 of embodiments of the present application include, but are not limited to, silicone-based, sub-gram-based, or polyimide-based materials.
In a third aspect, as shown in FIG. 5, an embodiment of the present application discloses a flexible brush board 30 comprising a flexible panel 20 of the second aspect and a brush 32. Brush 32 is used to apply an external force to flexible conductive layer 22, causing flexible conductive layer 22 to deform. The specific operation of the flexible drawing board 30 according to the embodiment of the present application will be described in detail below with reference to the driving method of the pixel circuit.
In a fourth aspect, embodiments of the present application disclose a display device comprising the flexible drawing board 30 of the third aspect. Alternatively, in another embodiment, the display device of the fourth aspect may comprise the flexible panel 20 of the second aspect. Since the display device of the fourth aspect includes the flexible panel 20 or the flexible drawing board 30, the display device of the fourth aspect has the same technical effects as the flexible panel 20 of the second aspect or the flexible drawing board 30 of the third aspect. Therefore, the advantageous effects of the display device of the fourth aspect are not repeated.
In a fifth aspect, as shown in fig. 6, an embodiment of the present application discloses a driving method of a pixel circuit 1, for the pixel circuit 1 of the first aspect, including:
s101: the first level signal is outputted to the scan signal terminal (G) such that the first Data voltage of the Data signal terminal (Data) is inputted to the driving module 3.
S102: outputting a second level signal to the scanning signal terminal (G) so that the signal writing module 4 is disconnected from the driving module 3;
s103: external force is applied to the flexible conductive layer 22 to conduct the metal layer 24 and the storage capacitor upper plate 25 so that the second data voltage of the data signal terminal 8 is input to the driving module 3.
Therefore, in use, the flexible conductive layer 22 is used to deform under the action of external force to conduct the metal layer and the upper plate of the storage capacitor, so that the data voltage of the data signal terminal 8 is input into the driving module 3. When a user uses the brush, the brush can write in an electric signal when pressing the screen, so that the function of the electronic canvas is realized.
Optionally, when the flexible panel driven by the pixel circuit is used as a drawing board to draw a pattern, the first data voltage received by each sub-pixel is a high-level voltage; the second data voltage received by the sub-pixels of the preset color is a high level voltage, and the second data voltages received by the sub-pixels of the rest colors are low level voltages; and applying a first external force to the flexible conductive layer by using a painting brush, wherein the track of the first external force is the same as the outline of the pattern to be formed.
When the partial area of the pattern needs to be erased, the second data voltage received by each sub-pixel is a high level voltage; and applying a second external force to the flexible conductive layer by using a painting brush, wherein the track of the second external force is the same as the outline of the pattern of the part to be erased.
When full-screen erasing is needed, a first level signal is output to the scanning signal end (G) so that the first data voltage received by each sub-pixel is high level voltage.
Referring to fig. 2 and 5, when the user has selected the color (e.g., green) of the brush and used the brush to draw on the flexible drawing board, first, a high level signal is output to the scan signal terminal (G), that is, a high level is output to the gate of the second transistor 41, the second transistor 41 is in an on state, a high level is output to the Data signal terminal (Data), and at this time, the Data voltages received by the sub-pixel units are all high levels, and the flexible drawing board 30 displays pure white. Then, a low level signal is output to the scan signal terminal (G), i.e., a low level is output to the gate of the second transistor 41, the second transistor 41 is in an off state, the Data signal terminal (Data) outputs a high level to the green sub-pixel, and outputs a low level voltage (e.g., zero output Data voltage) to the sub-pixels of other colors, when the flexible panel is pressed by using the brush, as shown in fig. 5, the flexible conductive layer 22 at the pressing position of the brush bends downward, the metal layer 24 in the via hole 28 is connected with the upper electrode plate 25 of the storage capacitor through the flexible conductive layer 22, thereby realizing charging of the green sub-pixel unit, the sub-pixel unit emits light, and the rest of the sub-pixel units discharge no light, thereby displaying a green pattern.
Similarly, when the pattern drawn on the flexible panel 20 needs to be erased, the second transistor 41 is first controlled to be in an off state, the Data signal terminal (Data) outputs a high level to all the sub-pixel units, and the position needing to be erased is pressed by the brush, and the full white picture is redisplayed at the pressed position, so that the erasing is completed. If all the full screen is to be erased, only the second transistor 41 needs to be controlled to be in an on state, the Data signal terminal (Data) outputs high level to all the sub-pixel units, the full screen displays white, and the full screen is erased.
In a sixth aspect, an embodiment of the present application discloses a method for manufacturing a flexible panel 20, which includes:
s201: a metal layer 24, a storage capacitor 5 and an insulating layer 26 are formed on one side of the substrate 21, the metal layer 24 is used for receiving data voltages, and the metal layer 24 is insulated from the upper electrode plate of the storage capacitor 5.
S202: the light emitting device 6 is bonded to the insulating layer 26 on the side remote from the substrate 21 by means of bonding.
S203: a planarization layer 27 is formed on the side of the light emitting device 6 remote from the substrate 21 and a penetration is made through the planarization layer 27, the light emitting device 6 and the insulating layer 26 such that at least part of the metal layer 24 and at least part of the storage capacitor upper plate 25 are exposed.
S204: and a flexible conductive layer 22 is attached to one side of the flat layer 27 away from the substrate 21, and the flexible conductive layer 22 covers the via hole 28 and is used for deforming under the action of external force so as to conduct the metal layer 24 and the upper electrode plate 25 of the storage capacitor.
Specifically, as shown in fig. 3, first, the thin film transistor 29, the metal layer 24, the insulating layer 26, the storage capacitor upper plate 25 and the storage capacitor lower plate 25' are fabricated on the substrate 21, and these structures may be completed by conventional patterning processes, which are not described herein. Next, a micro light emitting diode (ul led) is bonded to the substrate on which the thin film transistor 29, the metal layer 24, the insulating layer 26, and the storage capacitor are formed.
In specific implementation, the micro light emitting diode includes a P-type semiconductor layer, an intrinsic semiconductor layer and an N-type semiconductor layer, and when specifically bonding, a bonding metal layer 33 is first fabricated, where the bonding metal layer 33 may be made of Al, the bonding metal layer 33 is respectively connected to the source electrodes of the thin film transistors, and a metal film 34 in the same layer as the source electrodes, and the metal film is used for receiving a low-level signal (such as VSS in fig. 2); the uLED is then bonded to the bond metal layer 33 by a microtube 35; the micro light emitting diode includes a P-type semiconductor layer connected to the source of the thin film transistor through the micro tube 35 and the bonding metal layer 33, and an N-type semiconductor layer connected to the metal thin film 34 through the micro tube 35 and the bonding metal layer 33.
As shown in fig. 3, a planarization layer 27 is then fabricated over the ul led, followed by a via 28 through the planarization layer 27, the ul led, and the insulating layer 26, such that at least a portion of the metal layer 24, and at least a portion of the storage capacitor top plate 25, are exposed. When a plurality of thin film transistors 29 and a plurality of ul leds are provided on the flexible panel 20, one thin film transistor 29 controls one ul led, thereby realizing individual control of each sub-pixel unit.
Finally, embodiments of the present application may first manufacture a flexible conductive film, and then attach the flexible conductive film to the planarization layer 27. Specifically, the film includes a Polyimide (PI) flexible layer and a conductive layer (such as MgAg), or includes a polyester resin (PET) flexible layer and a conductive layer, and when attached, the conductive layer is close to the flat layer 27 so as to be attached to the flat layer 27, and at this time, the PI flexible layer or the PET flexible layer is disposed away from the flat layer 27.
The flexible panel 20 manufactured by the manufacturing method of the sixth aspect comprises a via 28, which via 28 penetrates the planarization layer 27, the light emitting device 6 and the insulating layer 26, so that at least part of the metal layer 24, and at least part of the storage capacitor upper plate 25 are exposed. The flexible conductive layer 22 arranged above the light emitting device 6 may be in contact with the exposed part of the metal layer 24 and the storage capacitor top plate 25 by a brush or finger in a conformable manner, which constitutes the same structure as the second transistor 41 in parallel with the touch sensor in fig. 2.
The beneficial effects obtained by applying the embodiment of the application include:
1. because the pixel circuit 1 of the embodiment of the application is provided with the control switch module 2, the control switch module 2 and the signal writing module 4 are arranged in parallel, and are respectively connected with the driving module 3, the storage capacitor 5 and the data signal end. When the flexible conductive layer is used, the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module 3. When a user uses the brush, the brush can write in an electric signal when pressing the screen, so that the function of the electronic canvas is realized.
2. The flexible panel 20 comprises a via 28, which via 28 extends through the planar layer 27, the light emitting device 6 and the insulating layer 26, such that at least part of the metal layer 24, and at least part of the storage capacitor top plate 25 is exposed. The flexible conductive layer 22 disposed over the light emitting device 6 may be contacted with the exposed portion of the metal layer 24 and the storage capacitor upper plate 25 by a brush or a finger in a bonding manner, which corresponds to the structure of the control switch module 2 disposed in parallel with the second transistor 41 in fig. 2.
3. The metal layer 24 and the storage capacitor upper plate 25 are disposed to cross each other. The arrangement can increase the contact area between the metal layer 24 and the upper electrode plate 25 of the storage capacitor and the flexible conductive layer 22, reduce series resistance and improve display effect.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A pixel circuit, comprising: the device comprises a control switch module, a driving module, a signal writing module, a storage capacitor and a light emitting device;
the driving module is respectively connected with the control switch module, the signal writing module, the storage capacitor, the light-emitting device and the first power supply voltage end and is used for providing driving current for the light-emitting device;
the signal writing module is respectively connected with the driving module, the storage capacitor, the scanning signal end and the data signal end and is used for inputting the data voltage of the data signal end into the driving module under the control of the scanning signal end;
the control switch module is arranged in parallel with the signal writing module and is respectively connected with the driving module, the storage capacitor and the data signal end; the control switch module comprises a metal layer and a flexible conductive layer which are insulated from each other; the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer with the upper polar plate of the storage capacitor, and the data voltage of the data signal end is input into the driving module.
2. The pixel circuit of claim 1, wherein the driving module comprises a first transistor and the signal writing module comprises a second transistor;
the grid electrode of the first transistor is respectively connected with the second pole of the second transistor, the control switch module and one end of the storage capacitor, the first pole is connected with the first power supply voltage end, and the second pole is respectively connected with the light emitting device and the other end of the storage capacitor;
the grid electrode of the second transistor is connected with the scanning signal end, the first electrode of the second transistor is connected with the data signal end, and the second electrode of the second transistor is respectively connected with the grid electrode of the first transistor and one end of the storage capacitor;
the control switch module is arranged in parallel between a first pole and a second pole of the second transistor.
3. A flexible panel, comprising: a substrate base and a flexible conductive layer;
the substrate comprises a plurality of sub-pixel units arranged in an array, and each sub-pixel unit comprises: the light-emitting device comprises a metal layer, a storage capacitor upper polar plate, an insulating layer, a light-emitting device, a flat layer and a via hole;
the metal layer is positioned at one side of the substrate base plate and is used for receiving data voltages;
the storage capacitor upper polar plate is positioned at one side of the substrate base plate and is insulated from the metal layer;
the insulating layer is positioned on one side of the metal layer away from the substrate and one side of the upper polar plate of the storage capacitor away from the substrate;
the light-emitting device is positioned on one side of the insulating layer away from the substrate base plate;
the flat layer is positioned on one side of the light-emitting device, which is far away from the substrate base plate;
the via hole penetrates through the flat layer, the light emitting device and the insulating layer, so that at least part of the metal layer and at least part of the upper polar plate of the storage capacitor are exposed;
the flexible conductive layer is positioned on one side of the flat layer away from the substrate base plate and is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor.
4. A flexible panel as recited in claim 3 wherein each of said sub-pixel cells further comprises a thin film transistor, said thin film transistor comprising an active layer, a gate electrode, and a source drain electrode;
the upper electrode plate of the storage capacitor is arranged on the same layer as the source electrode and the drain electrode, and the lower electrode plate of the storage capacitor is arranged on the same layer as the active layer;
the metal layer and the source drain electrode are arranged on the same layer.
5. The flexible panel of claim 4, wherein the light emitting device is a micro light emitting diode;
the metal layer and the upper polar plate of the storage capacitor are arranged in a crossing way.
6. A flexible drawing board comprising the flexible panel of any one of claims 3-5 and a brush;
the painting brush is used for applying external force to the flexible conductive layer so that the flexible conductive layer deforms.
7. A display device comprising the flexible drawing board according to claim 6; or a flexible panel as claimed in any one of claims 3 to 5.
8. A driving method of a pixel circuit for a pixel circuit according to any one of claims 1 to 2, comprising:
outputting a first level signal to the scanning signal end, so that a first data voltage of the data signal end is input into the driving module;
outputting a second level signal to the scanning signal end, so that the signal writing module is disconnected from the driving module;
and applying external force to the flexible conductive layer to conduct the metal layer and the upper polar plate of the storage capacitor, so that the second data voltage of the data signal end is input into the driving module.
9. The method for driving a pixel circuit according to claim 8, wherein,
when the flexible panel driven by the pixel circuit is used as a drawing board for drawing patterns, a first level signal is output to the scanning signal end, and the data signal end outputs high level voltage to each sub-pixel; outputting a second level signal to the scanning signal end, so that the signal writing module is disconnected from the driving module; applying a first external force to the flexible conductive layer by using a painting brush, wherein the data signal end outputs high-level voltage to the sub-pixels with preset colors, and receives and outputs low-level voltage to the sub-pixels with other colors except the preset colors; the track of the first external force is the same as the outline of the pattern to be formed;
when a part of the area of the pattern needs to be erased, a second external force is applied to the flexible conductive layer by using a painting brush, and the data signal end receives and outputs high-level voltage to each sub-pixel; the track of the second external force is the same as the outline of the pattern of the part to be erased;
when full-screen erasing is needed, a first level signal is output to the scanning signal end, and the data signal end outputs high level voltage to each sub-pixel.
10. A method of making a flexible panel, comprising:
manufacturing a metal layer, a storage capacitor and an insulating layer on one side of a substrate, wherein the metal layer is used for receiving data voltage, and the metal layer is insulated from an upper polar plate of the storage capacitor;
bonding the light-emitting device on one side of the insulating layer away from the substrate by adopting a bonding mode;
manufacturing a flat layer on one side of the light-emitting device far away from the substrate base plate, and manufacturing a via hole penetrating through the flat layer, the light-emitting device and the insulating layer, so that at least part of the metal layer and at least part of the upper polar plate of the storage capacitor are exposed;
and a flexible conductive layer is attached to one side, far away from the substrate, of the flat layer, the flexible conductive layer covers the via hole and is used for generating deformation under the action of external force so as to conduct the metal layer with the upper polar plate of the storage capacitor.
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| CN112180628A (en) * | 2020-09-11 | 2021-01-05 | 山东蓝贝思特教装集团股份有限公司 | Liquid crystal writing device, local erasing method and display method |
| CN114596816B (en) * | 2022-03-04 | 2023-05-12 | 武汉天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN114863885A (en) * | 2022-06-21 | 2022-08-05 | 义乌清越光电技术研究院有限公司 | Pixel circuit, array substrate and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479557A (en) * | 2002-08-30 | 2004-03-03 | ������������ʽ���� | Electroluminescent display system |
| JP2008292652A (en) * | 2007-05-23 | 2008-12-04 | Seiko Epson Corp | Display device and electronic paper |
| CN101933071A (en) * | 2008-02-04 | 2010-12-29 | 皇家飞利浦电子股份有限公司 | Lighting system, light element and display |
| CN203366702U (en) * | 2013-07-09 | 2013-12-25 | 京东方科技集团股份有限公司 | Touch display driving circuit and display device |
| CN106252380A (en) * | 2016-08-31 | 2016-12-21 | 上海天马有机发光显示技术有限公司 | Flexible display panels and device |
| CN107211536A (en) * | 2015-01-05 | 2017-09-26 | 巴科股份有限公司 | Spliced display and display splicing block and bearing substrate for using wherein |
| CN109471561A (en) * | 2018-09-14 | 2019-03-15 | 友达光电股份有限公司 | Flexible pixel array substrate and flexible display panel using same |
| CN109742113A (en) * | 2019-01-08 | 2019-05-10 | 京东方科技集团股份有限公司 | A kind of array substrate, preparation method and relevant apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2004090847A1 (en) * | 2003-04-02 | 2006-07-06 | 松下電器産業株式会社 | Display device |
| JP4407699B2 (en) * | 2007-02-02 | 2010-02-03 | セイコーエプソン株式会社 | Display device and electronic paper |
-
2020
- 2020-04-20 CN CN202010313717.7A patent/CN111477161B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479557A (en) * | 2002-08-30 | 2004-03-03 | ������������ʽ���� | Electroluminescent display system |
| JP2008292652A (en) * | 2007-05-23 | 2008-12-04 | Seiko Epson Corp | Display device and electronic paper |
| CN101933071A (en) * | 2008-02-04 | 2010-12-29 | 皇家飞利浦电子股份有限公司 | Lighting system, light element and display |
| CN203366702U (en) * | 2013-07-09 | 2013-12-25 | 京东方科技集团股份有限公司 | Touch display driving circuit and display device |
| CN107211536A (en) * | 2015-01-05 | 2017-09-26 | 巴科股份有限公司 | Spliced display and display splicing block and bearing substrate for using wherein |
| CN106252380A (en) * | 2016-08-31 | 2016-12-21 | 上海天马有机发光显示技术有限公司 | Flexible display panels and device |
| CN109471561A (en) * | 2018-09-14 | 2019-03-15 | 友达光电股份有限公司 | Flexible pixel array substrate and flexible display panel using same |
| CN109742113A (en) * | 2019-01-08 | 2019-05-10 | 京东方科技集团股份有限公司 | A kind of array substrate, preparation method and relevant apparatus |
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|---|---|
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