CN115857245A - Hybrid display panel and display device - Google Patents

Abstract

The invention discloses a hybrid display panel and a display device, wherein the hybrid display panel comprises: driving the back plate; a plurality of active light emitting units positioned at one side of the driving back plate; each active light-emitting unit comprises a first electrode, an active light-emitting layer and a second electrode which are sequentially stacked, wherein the first electrode and the second electrode are used for supplying power to the active light-emitting layer; the passive display units and the active light-emitting units are positioned on the same side of the driving back plate; the passive display unit comprises a third electrode, a passive display layer and a fourth electrode which are sequentially stacked, and the third electrode and the fourth electrode are used for providing an electric field for the passive display layer; the first electrode and the third electrode are arranged on the same layer and are arranged on the surface of the driving backboard. The power consumption of the display panel is reduced.

Description

Hybrid display panel and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a hybrid display panel and a display device.

Background

The electronic paper is also called digital paper, can still keep the original picture after power failure, has low power consumption and foldable bending function, and is widely applied to the fields of electronic paper books, electronic price tags and the like.

However, the currently commonly used display screens generally adopt self-luminous organic electroluminescent devices, and often need to display a picture with a special shape for a long time, for example, a screen locking picture; in this case, the self-luminous display device has a problem of excessive power consumption.

Disclosure of Invention

The embodiment of the invention provides a hybrid display panel and a display device, which are used for realizing low power consumption of the display panel.

According to an aspect of the present invention, there is provided a hybrid display panel including:

driving the back plate;

a plurality of active light emitting units located at one side of the driving back plate; each active light-emitting unit comprises a first electrode, an active light-emitting layer and a second electrode which are sequentially stacked, wherein the first electrode and the second electrode are used for supplying power to the active light-emitting layer;

the passive display units and the active light-emitting units are positioned on the same side of the driving back plate; the passive display unit comprises a third electrode, a passive display layer and a fourth electrode which are sequentially stacked, and the third electrode and the fourth electrode are used for providing an electric field for the passive display layer;

the first electrode and the third electrode are arranged on the same layer and are both arranged on the surface of the driving backboard.

Optionally, the active light emitting layer includes an organic light emitting material and/or quantum dots; the passive display layer comprises at least one cavity body, and the cavity body is filled with electrophoretic liquid with charged ink particles.

Optionally, the driving backplane includes a first display area and a second display area; all the active light-emitting units are positioned in the first display area, and all the passive display units are positioned in the second display area; the first display area is adjacent to the second display area, and the second display area is arranged around the first display area or the first display area is arranged around the second display area;

wherein the first display area comprises a circle, an ellipse, a ring, or a polygon; the second display region includes a circle, an ellipse, a ring, or a polygon.

Optionally, the plurality of active light emitting units and the plurality of passive display units are arranged on one side of the driving backplane in a mixed manner.

Optionally, a plurality of active light emitting units and a plurality of passive display units are mixed and arranged to form a plurality of pixel groups; each pixel group comprises a red active light-emitting unit for emitting red light, a green active light-emitting unit for emitting green light, a blue active light-emitting unit for emitting blue light and a passive display unit for reflecting light.

Optionally, the second electrode of each active light-emitting unit is disposed on the same layer, and a whole layer of common metal electrode layer is formed; the common metal electrode layer comprises a plurality of first openings; the first opening exposes the passive display layer.

Optionally, the hybrid display panel further includes a filter layer, where the filter layer is located on one side of the active light-emitting unit and the passive display unit away from the driving backplane;

the area of the filter layer where the passive display unit is located is a transparent area, or the area of the filter layer where the passive display unit is located comprises a second opening, and the second opening exposes the passive display layer.

Optionally, the hybrid display panel further includes a touch electrode layer; the touch electrode layer is positioned on one side of the filter layer away from the driving back plate;

the touch electrode layer is reused as a fourth electrode in the passive display unit.

Optionally, the driving back plate includes:

the driving circuit layer is positioned on one side of the substrate close to the first electrode and the third electrode;

the driving circuit layer comprises a plurality of first pixel driving units and a plurality of second pixel driving units; the first pixel driving units are connected with the first electrodes in a one-to-one correspondence manner, and are used for controlling the conduction state between a power signal line and the first electrodes; the second pixel driving units are connected with the third electrodes in a one-to-one correspondence mode, and the second pixel driving units are used for controlling the conducting state between the power signal lines and the third electrodes.

According to another aspect of the present invention, there is provided a display device including the hybrid display panel according to any one of the embodiments of the present invention.

According to the technical scheme provided by the embodiment of the invention, the plurality of active light-emitting units are arranged on one side of the driving back plate, each active light-emitting unit comprises the first electrode, the active light-emitting layer and the second electrode which are sequentially stacked, and the first electrode and the second electrode are used for supplying power to the active light-emitting layer, so that an active display panel with a better display effect and a higher refresh rate can be formed; the driving back plate is provided with a plurality of driving light-emitting units, and the driving back plate is provided with a plurality of driving light-emitting units; the first electrode and the third electrode are arranged on the same layer and are arranged on the surface of the driving backboard, so that the passive display panel and the active display panel share the driving backboard and the anode layer on the driving backboard to form the hybrid display panel, and the power consumption of the display panel can be reduced.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hybrid display panel according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another hybrid display panel according to an embodiment of the present invention;

fig. 3 is a mixed layout of active light emitting cells and passive light emitting cells according to an embodiment of the present invention;

FIG. 4 is a mixed layout of active light emitting cells and passive light emitting cells according to another embodiment of the present invention;

fig. 5 is a mixed layout of an active light emitting cell and a passive light emitting cell according to another embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above 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 invention described herein are capable of operation in other sequences than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

An embodiment of the present invention provides a hybrid display panel, and fig. 1 is a schematic structural diagram of the hybrid display panel provided in the embodiment of the present invention, and referring to fig. 1, the hybrid display panel includes:

a driving back plate 10;

a plurality of active light emitting units 20 located at one side of the driving back plate 10; each active light emitting unit 20 comprises a first electrode 21, an active light emitting layer 23 and a second electrode 22 which are sequentially stacked, wherein the first electrode 21 and the second electrode 22 are used for supplying power to the active light emitting layer 23;

a plurality of passive display units 30 located on the same side of the driving backplane 10 as the active light emitting units 20; the passive display unit 30 comprises a third electrode 23, a passive display layer 33 and a fourth electrode 32 which are sequentially stacked, wherein the third electrode 31 and the fourth electrode 32 are used for providing an electric field for the passive display layer 33;

the first electrode 21 and the third electrode 31 are disposed in the same layer and are both disposed on the surface of the driving backplane 10.

Specifically, the driving backplane 10 refers to a film structure that can provide driving signals for the display panel and play roles of buffering, protecting, supporting, and the like. One side of the driving back plate 10 is provided with a patterned electrode layer, and the patterned electrode layer comprises a plurality of first electrodes 21 arranged at intervals and a plurality of third electrodes 31 arranged at intervals. The material of the first electrode 21 and the third electrode 31 may include Indium Tin Oxide (ITO), indium Zinc Oxide (IZO), zinc oxide (ZnO), indium oxide (In 2O 3), or the like. In one embodiment, a Pixel Defining Layer (PDL) may be further included, which is located at one side of the driving backplane 10 and disposed around the edge of each of the first electrodes 21 and each of the second electrodes 22, thereby defining a display area of each sub-pixel. The PDL may be formed of an organic material such as Polyimide (PI), polyamide, benzocyclobutene (BCB), acryl resin, or phenol resin.

The active light emitting layer 23 is located on a side of the first electrode 21 away from the driving backplane 10, and the active light emitting layer 23 may be formed of, for example, a low molecular weight organic material or a high molecular weight organic material; the active light emitting layer 23 may include other various functional layers in addition to the organic emission layer. The second electrode 22 is disposed on the active light emitting layer 23, and the material of the second electrode 22 may include Ag, magnesium (Mg), al, pt, pd, au, ni, nd, iridium (Ir), cr, or a mixture thereof. If a voltage is applied to the first electrode 21 and the second electrode 22, the active light emitting layer 23 positioned between the first electrode 21 and the second electrode 22 may emit visible light upon excitation of an electrical signal, thereby realizing an image that can be recognized by a user. Each of the first electrodes 21 and the active light emitting layer 23 and the second electrode 22 on the first electrode 21 are used to form one active light emitting unit 20. The driving backplate 10 and the plurality of active light emitting units 20 on the driving backplate 10 can form an active display panel with better display effect and higher refresh rate. The light-emitting direction of the active display panel is the direction of the active light-emitting layer 23 pointing to the second electrode 22.

The passive display layer 33 is located on the side of the third electrode 31 away from the driving back plate 10, there may be tens of thousands of tiny charged ink particles 302 in the passive display layer 33, these charged ink particles 302 may be distributed in a transparent or colored base liquid to form a suspension system, for example, each charged ink particle 302 has a diameter of about 100 μm, and the surface is easy to absorb charges. The third electrode 31 is located on a side of the passive display layer 33 away from the driving backplane 10, and the third electrode 31 and the fourth electrode 32 are used for providing an electric field for the passive display layer 33, and the particles capable of inducing charges can move under the action of the external electric field, so that the conversion of text images is realized. For example, referring to fig. 1, the black charged ink particles 302 are suspended in a transparent base liquid, uniformly arranged and randomly moved, and under the action of an applied electric field, the black charged ink particles 302 can induce charges to move in different directions, so that one side of the collected black charged ink particles 302 can display black, and the other side can display the color of the base liquid, i.e., white. Alternatively, in some embodiments, the white charged ink particles 302 are suspended in a colored base liquid, uniformly arranged and randomly moved, and under the action of an applied electric field, the white charged ink particles 302 can induce charges to move in different directions, so that one side of the white charged ink particles 302 where they are gathered can display white, and the opposite side can display the color of the base liquid, i.e., black. The electronic paper realizes color conversion of characters and images by using the principle. Each third electrode 31 and the passive display layer 33 and the fourth electrode 32 on the third electrode 31 are used to form a passive display unit 30. The driving backplane 10 and the plurality of passive display units 30 on the driving backplane 10 can form a passive display panel with low power consumption. The material of the fourth electrode 32 has transparency, so that the ambient light can be incident on the passive display layer 33 and reflected out, thereby realizing the display.

According to the display panel provided by the embodiment of the invention, the plurality of active light-emitting units are arranged on one side of the driving backboard, each active light-emitting unit comprises the first electrode, the active light-emitting layer and the second electrode which are sequentially stacked, and the first electrode and the second electrode are used for supplying power to the active light-emitting layer, so that the active display panel with better display effect and higher refresh rate can be formed; the driving back plate is provided with a plurality of driving light-emitting units, and the driving back plate is provided with a plurality of driving light-emitting units; the first electrode and the third electrode are arranged on the same layer and are arranged on the surface of the driving backboard, so that the passive display panel and the active display panel share the driving backboard and the anode layer on the driving backboard to form the mixed display panel, and the whole thickness of the display panel can be reduced.

As an embodiment of the invention, with reference to fig. 1, optionally, the active Light Emitting layer 23 includes an Organic Light Emitting material sub-layer, the driving backplane 10 and the active Light Emitting unit 20 on the driving backplane are used to form an OLED (Organic Light-Emitting Diode) display panel.

In particular, the OLED display panel has a self-luminous property. The OLED display panel is used as a new generation display technology, has more excellent display performance compared with an LCD, and has the advantages of good display effect, low power consumption, high flexibility, ultra-light weight and the like. The OLED material is a core component of the OLED display panel and determines the performance of the OLED display panel. An organic light-emitting material sub-layer (OLED material) is arranged between the two electrode layers to form a sandwich structure like a sandwich and is placed on the driving back plate 10. When the two electrode layers are powered on, electrons injected from the cathode and holes injected from the anode will combine in the organic light-emitting material sublayer, releasing energy and appearing as light. The organic luminescent material sub-layer has different luminescent material components, and the colors of the emitted light are different, so that the three primary colors of red, blue and green can be obtained by selecting different luminescent materials, and full-color display is realized. The active light emitting layer 23 includes an organic light emitting material sub-layer, and may further include at least one of a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), an Electron Transport Layer (ETL), and an Electron Injection Layer (EIL).

As an embodiment of the present invention, please refer to fig. 1 continuously, optionally, the active light emitting layer 23 includes a quantum dot light emitting sublayer, the driving backplane 10 and the driving unit 20 on the driving backplane are used to form a QLED display panel.

Specifically, the material of the quantum dot luminescent sublayer comprises quantum dots. Quantum dots are semiconductors such as indium phosphide, gallium nitride, cadmium selenide, lead sulfide, and the like. Quantum dots, as an inorganic semiconductor material, have a narrow emission spectrum, high color purity and good optical stability, and are receiving more and more attention in the display field. The emission of a quantum dot is the result of recombination of electrons and holes, otherwise known as exciton annihilation. To let the quantum dot emit light, the quantum dot first generates an exciton. The exciton generation is generally carried out in two ways, one is photoinduced and the other is electrogenerated; in the embodiment of the invention, an electric mode is adopted. Without excitation (ground state), all electrons are distributed over the valence band. When the two electrode layers are connected with a power supply, an electron can be injected into a conduction band of the quantum dot from the outside by an electric field, and then a hole can be injected into a valence band, and the electron and the hole can be recombined to emit a photon. The quantum dots can obtain three primary colors of red, blue and green. The active light emitting layer 2330 includes a quantum dot photonic layer and may further include at least one of a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), an Electron Transport Layer (ETL), and an Electron Injection Layer (EIL).

As an embodiment of the present invention, the active light emitting layer 23 may include an organic light emitting material, and may be doped with quantum dots.

Alternatively, with continued reference to fig. 1, the active light emitting units 20 in the active display panel may include a red active light emitting unit 20 for emitting red light, a green active light emitting unit 20 for emitting green light, and a blue active light emitting unit 20 for emitting blue light, and may also include active light emitting units 20 of other light emitting colors. The red active light emitting unit 20 has a red light emitting layer R, the green active light emitting unit 20 has a green light emitting layer G, and the blue active light emitting unit 20 has a blue light emitting layer B. Alternatively, the light emitted from the light emitting layer in the active light emitting unit 20 is white, and the filter layer 50 may be disposed on the side of the active light emitting unit 20 away from the driving backplane 10, so that the filter layer 50 can display different colors. When the light emitting layer in the active light emitting unit 20 can emit light of red, green, and blue colors, the filter layer 50 may be disposed on the side of the active light emitting unit 20 away from the driving backplane 10, so as to reduce the interference of external light to the display device, thereby further improving the display effect; compared with the polaroid with the traditional structure, the thickness of the display device can be further reduced. .

The filter layer 50 includes a plurality of filter units of different colors and a black matrix disposed around the filter units. Fig. 1 exemplarily shows that the filter units include a red filter unit RCF, a green filter unit GCF, and a blue filter unit BCF. The red filter unit RCF is disposed corresponding to the red active light emitting unit 20, and is configured to filter light of other colors and allow red light to pass through; the green filter unit GCF is disposed corresponding to the green active light emitting unit 20, and is used for filtering light of other colors and allowing green light to pass through; the blue filter unit BCF is disposed corresponding to the blue active light emitting unit 20, and is configured to filter light of other colors and allow the blue light to pass through.

Fig. 2 is a schematic structural diagram of another hybrid display panel according to an embodiment of the present invention, and referring to fig. 2, as an embodiment of the present invention, optionally, the passive display unit 30 formed by the third electrode 31, the passive display layer 33, and the fourth electrode 32 may be an electrophoretic sub-pixel. The passive display layer 33 includes a plurality of cavity bodies 301, and each cavity body 301 includes charged ink particles 302 of at least two colors.

Specifically, the electronic ink is a liquid material in which hundreds of cavity bodies 301 are suspended, and each cavity body 301 includes charged ink particles 302 of at least two colors. For example, each cavity 301 is composed of positively charged white charged ink particles 302W and negatively charged black charged ink particles 302B. When a negative electric field is applied to both ends of the hollow cavity 301, the positively charged white charged ink particles 302W move to the negative electrode of the electric field under the action of the electric field, and at the same time, the negatively charged black charged ink particles 302B move to the bottom of the hollow cavity 301 to be "hidden", and then the surface will display white. When a positive electric field is applied to two sides of the neighboring cavity 301, the black charged ink particles 302B move to the top of the cavity 301 under the action of the electric field, and the surface appears black. Alternatively, when the empty cavity 301 contains charged ink particles 302 of other colors, other colors may be displayed. Such as a number of uniformly and regularly arranged colored subpixels formed by the hollow volume 301. Each of the three color sub-pixels includes a color cavity 301, and the three color cavity 301 sequentially contains red, green, and blue charged pigment particles and an electrophoretic fluid therein, and different color display is realized by driving the red, green, and blue charged pigment particles in the color cavity 301.

As an embodiment of the present invention, optionally, the driving backplane includes a first display area and a second display area; all the active light-emitting units are positioned in the first display area, and all the passive display units are positioned in the second display area; wherein the first display area comprises a circle, an ellipse, a ring or a polygon; the second display area includes a circle, an ellipse, a ring, or a polygon. The first display area is adjacent to the second display area. The second display region may be disposed around the first display region, or the first display region may be disposed around the second display region.

Fig. 3 is a mixed layout of an active light emitting cell 20 and a passive light emitting cell according to an embodiment of the present invention, fig. 4 is another mixed layout of an active light emitting cell 20 and a passive light emitting cell according to an embodiment of the present invention, and fig. 5 is another mixed layout of an active light emitting cell 20 and a passive light emitting cell according to an embodiment of the present invention, and referring to fig. 3 to 5, as an embodiment of the present invention, a plurality of active light emitting cells and a plurality of passive display cells are optionally mixed and arranged on one side of a driving backplane.

Specifically, the plurality of active light-emitting units and the plurality of passive display units are arranged on one side of the driving backboard in a mixed manner, so that the active light-emitting units and the passive display units are arranged on the whole surface of the display panel. Namely, the whole panel can display with better effect and higher refresh rate. The whole panel can also display electronic paper with low power consumption, and can display special pictures such as lock screen images for a long time.

Referring to fig. 3 to 4, a plurality of active light emitting units and a plurality of passive display units are mixedly arranged to form a plurality of pixel groups 101; each pixel group 101 includes a red active light emitting cell (R) for emitting red light, a green active light emitting cell (G) for emitting green light, a blue active light emitting cell (B) for emitting blue light, and a passive display cell (EPD) for reflecting light. Referring to fig. 3, a red active light emitting cell (R) for emitting red light, a green active light emitting cell (G) for emitting green light, a blue active light emitting cell (B) for emitting blue light, and a passive display cell (EPD) for reflecting light in each pixel group 101 are sequentially arranged along a row direction; the colors of the active light-emitting units in the same column are the same; each pixel group 101 may be arranged in an array on the driving backplane. Referring to fig. 4, in each pixel group 101, a red active light emitting unit (R) for emitting red light, a green active light emitting unit (G) for emitting green light, a blue active light emitting unit (B) for emitting blue light, and a passive display unit (EPD) for reflecting light are sequentially arranged along a row direction, and pixel groups in two adjacent rows are disposed in a staggered manner, so that the active light emitting units and the passive display units in two adjacent rows can also form one pixel group 101, which can increase the number of the pixel groups 101.

Referring to fig. 5, a plurality of red active light emitting cells (R), a plurality of green active light emitting cells (G), and a plurality of blue active light emitting cells (B) may be disposed on the driving backplane in an array and have a circular or elliptical shape, and a passive display cell (EPD) is disposed in a middle region of the four active light emitting cells.

Referring to fig. 1 and 2, as an embodiment of the present invention, optionally, the second electrode 22 of each active light emitting unit 20 is disposed on the same layer and forms an entire layer of a common metal electrode layer; the common metal electrode layer comprises a plurality of first openings; the first opening exposes the passive display layer 33.

Specifically, the second electrode 22 of each active light emitting unit 20 is disposed in the same layer, so that the manufacturing process of the second electrode 22 can be simplified. When the cathode (the second electrode 22) of the red, green and blue active light emitting unit 20 is disposed, a Common Metal Mask (CMM) is used for evaporation in a conventional manner, but for a display panel in which a plurality of active light emitting units 20 and a plurality of passive display units 30 are mixedly arranged, the above of an electrophoretic pixel is also covered by the cathode by the evaporation method, which affects transmittance. In order to avoid this problem, in the embodiment of the present invention, the common cathode is formed by a high-precision Metal Mask (FMM) or a patterned (pattern) cathode technology, so that the common Metal electrode layer (common cathode) includes a plurality of first openings; the first opening exposes the passive display layer 33.

In addition, for a display panel in which a plurality of active light emitting units 20 and a plurality of passive display units 30 are arranged in a mixed manner, the filter layer 50 is a transparent region in the region where the passive display unit 30 is located, or the filter layer 50 includes a second opening in the region where the passive display unit 30 is located, and the second opening exposes the passive display layer 33.

As an embodiment of the present invention, optionally, the hybrid display panel further includes a touch electrode layer 60; the touch electrode layer is located on one side of the filter layer 50 away from the driving back plate 10; the touch electrode layer 60 is reused as the fourth electrode 32 in the passive display unit 30, so that the thickness and the cost of the display panel can be further reduced.

As an embodiment of the present invention, optionally, the driving back plate 10 includes:

a substrate and a driving circuit layer, the driving circuit layer is positioned at one side of the substrate close to the first electrode 21 and the third electrode 31;

the driving circuit layer comprises a plurality of first pixel driving units and a plurality of second pixel driving units; the first pixel driving units are connected with the first electrodes 21 in a one-to-one correspondence manner, and are used for controlling the conduction state between the power signal lines and the first electrodes 21; the second pixel driving units are connected to the third electrodes 31 in a one-to-one correspondence, and are configured to control conduction states between the power signal lines and the third electrodes 31.

In particular, the substrate may be flexible and may be formed of any suitable insulating material having flexibility. For example, the flexible substrate may be formed of a polymer material such as Polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or glass Fiber Reinforced Plastic (FRP).

The driving circuit layer may include a buffer layer on the flexible substrate, the buffer layer covering an entire upper surface of the flexible substrate. In one embodiment, the buffer layer includes an inorganic layer or an organic layer. The buffer layer may comprise a single layer or multiple layers. The buffer layer blocks oxygen and moisture, prevents diffusion of moisture or impurities through the substrate, and provides a flat surface on the upper surface of the flexible substrate. The driving circuit layer further includes a Thin-Film Transistor (TFT) on the buffer layer. Taking a top gate type TFT as an example, the TFT includes a semiconductor active layer on a buffer layer, the semiconductor active layer including a source region and a drain region formed by doping N-type impurity ions or P-type impurity ions. A region between the source region and the drain region is a channel region in which impurities are not doped. The channel region has a gate insulating layer and a gate electrode thereon in this order. The first electrode 21 and the third electrode 31 are electrically connected to a source electrode or a drain electrode of the thin film transistor through the contact hole.

Each first electrode 21 corresponds to a first pixel driving unit having at least two thin film transistors. For example, the first pixel driving unit may be a "2T1C" circuit in the related art, or a "7T1C" circuit. The first pixel driving unit is for controlling a conduction state between the power supply signal line and the first electrode 21. Each second electrode 22 corresponds to a second pixel driving unit having at least two tfts. For example, the second pixel driving unit may be a "2T1C" circuit in the related art, or a "7T1C" circuit. The second pixel driving unit is for controlling a conduction state between the power supply signal line and the third electrode 31.

The opening and closing of the first pixel driving unit and the second pixel driving unit can be controlled independently, so that active display and passive independent control are realized.

The embodiment of the invention also provides a display device which comprises the hybrid display panel in the embodiment of the invention. Have the same technical effect and are not described in detail herein.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A hybrid display panel, comprising:

driving the back plate;

a plurality of active light emitting units located at one side of the driving back plate; each active light-emitting unit comprises a first electrode, an active light-emitting layer and a second electrode which are sequentially stacked, wherein the first electrode and the second electrode are used for supplying power to the active light-emitting layer;

the passive display units and the active light-emitting units are positioned on the same side of the driving back plate; the passive display unit comprises a third electrode, a passive display layer and a fourth electrode which are sequentially stacked, and the third electrode and the fourth electrode are used for providing an electric field for the passive display layer;

the first electrode and the third electrode are arranged on the same layer and are both arranged on the surface of the driving backboard.

2. The hybrid display panel of claim 1,

the active light-emitting layer comprises an organic light-emitting material and/or quantum dots; the passive display layer comprises at least one cavity body, and electrophoretic fluid of charged ink particles is filled in the cavity body.

3. The hybrid display panel of claim 1, wherein the driving backplane comprises a first display area and a second display area; all the active light-emitting units are positioned in the first display area, and all the passive display units are positioned in the second display area; the first display area is adjacent to the second display area, the second display area is arranged around the first display area, or the first display area is arranged around the second display area;

wherein the first display area comprises a circle, an ellipse, a ring, or a polygon; the second display area includes a circle, an ellipse, a ring, or a polygon.

4. The hybrid display panel according to claim 1, wherein a plurality of the active light emitting units and a plurality of the passive display units are mixedly arranged on one side of the driving backplane.

5. The hybrid display panel of claim 4, wherein a plurality of the active light emitting units and a plurality of the passive display units are arranged in a hybrid manner to form a plurality of pixel groups; each pixel group comprises a red active light-emitting unit for emitting red light, a green active light-emitting unit for emitting green light, a blue active light-emitting unit for emitting blue light and a passive display unit for reflecting light.

6. The hybrid display panel of claim 4, wherein the second electrode of each active light-emitting unit is disposed on the same layer and forms a whole common metal electrode layer; the common metal electrode layer comprises a plurality of first openings; the first opening exposes the passive display layer.

7. The hybrid display panel of claim 4, further comprising a filter layer on a side of the active light emitting units and the passive display units away from the driving backplane;

the area of the filter layer where the passive display unit is located is a transparent area, or the area of the filter layer where the passive display unit is located comprises a second opening, and the second opening exposes the passive display layer.

8. The hybrid display panel of claim 7, further comprising a touch electrode layer; the touch electrode layer is positioned on one side of the filter layer away from the driving back plate;

the touch electrode layer is reused as a fourth electrode in the passive display unit.

9. The hybrid display panel of claim 1, wherein the driving backplane comprises:

the driving circuit layer is positioned on one side of the substrate close to the first electrode and the third electrode;

the driving circuit layer comprises a plurality of first pixel driving units and a plurality of second pixel driving units; the first pixel driving units are connected with the first electrodes in a one-to-one correspondence manner, and are used for controlling the conduction state between a power signal line and the first electrodes; the second pixel driving units are connected with the third electrodes in a one-to-one correspondence mode, and the second pixel driving units are used for controlling the conducting state between the power signal lines and the third electrodes.

10. A display device comprising the hybrid display panel according to any one of claims 1 to 9.

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