Hybrid display panel and display device

Abstract

The present invention provides a hybrid display panel and a display device. The hybrid display panel includes a plurality of sub-pixels, and further includes: a first substrate including a first electrode; a second substrate disposed opposite to the first substrate and located on one side of the first electrode; a micro light-emitting diode and an electro-wetting film layer structure, the micro light-emitting diode and the electro-wetting film layer structure being juxtaposed between the first substrate and the second substrate; wherein, within one sub-pixel, the first electrode is electrically connected to the micro light-emitting diode and the electro-wetting film layer structure at the same time. The hybrid display panel of the present invention combines the self-luminous display function of the micro light-emitting diode and the electro-wetting reflection display function, can freely switch the display between a dark environment and a bright environment, realizes ultra-low power consumption, and at the same time has the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, lightness, beauty, low power consumption, simple process, and low manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of displays, and in particular, to a hybrid display panel and a display device. Background Art

[0002] With the development of display technology and the improvement of people's living standards, especially the expansion of display application scenarios, people have put forward more and higher requirements for display screens.

[0003] Low power consumption is one of the important pursuit goals of current display screens. In order to achieve the goal of low power consumption, various low-power displays have been developed, such as transflective displays. A transflective display is a typical hybrid display that integrates reflective display and transmissive display, and needs to be compatible with two display modes in design. Although a transflective display belongs to the category of low-power displays, it sacrifices the display effect: in the reflective mode, the reflectivity is low; in the transmissive mode, the transmittance is low and the brightness is low.

[0004] Therefore, there is an urgent need to develop a display that can both ensure the display effect and maintain low power consumption. Summary of the Invention

[0005] The present invention provides a hybrid display panel and a display device to balance ultra-low power consumption and effective display.

[0006] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0007] The present invention provides a hybrid display panel, including a plurality of sub-pixels, and the hybrid display panel includes:

[0008] A first substrate, including a first electrode;

[0009] A second substrate, disposed opposite to the first substrate and located on one side of the first electrode;

[0010] A micro light-emitting diode and an electro-wetting film layer structure, the micro light-emitting diode and the electro-wetting film layer structure are arranged side by side between the first substrate and the second substrate; wherein,

[0011] In one of the sub-pixels, the first electrode is electrically connected to the micro light-emitting diode and the electro-wetting film layer structure at the same time.

[0012] Optionally, in some embodiments of the present invention, the second substrate includes a second electrode, and the second electrode is disposed on the side of the second substrate close to the first substrate.

[0013] Optionally, in some embodiments of the present invention, the first substrate further includes a third electrode, the first electrode is electrically connected to the first pole of the micro light-emitting diode, and the third electrode is electrically connected to the second pole of the micro light-emitting diode.

[0014] Optionally, in some embodiments of the present invention, the hybrid display panel further includes a partition wall that connects the first substrate and the second substrate, and the electro-wetting film layer structure, the micro light-emitting diode, the first electrode, and the third electrode are all located within the area surrounded by the partition wall.

[0015] Optionally, in some embodiments of the present invention, the hybrid display panel further includes a partition wall that connects the first substrate and the second substrate, the electro-wetting film layer structure is located within the area surrounded by the partition wall, and the micro light-emitting diode is located outside the area surrounded by the partition wall.

[0016] Optionally, in some embodiments of the present invention, the first electrode includes a first portion and a second portion, the first portion and the second portion are electrically connected, the first portion is connected to the electro-wetting film layer structure and is located within the area surrounded by the partition wall, and the second portion is connected to the micro light-emitting diode and is located outside the area surrounded by the partition wall.

[0017] Optionally, in some embodiments of the present invention, the first portion and the second portion are integrally formed; or,

[0018] the first portion and the second portion are spaced apart, and the first substrate further includes a bridging electrode, and the first portion and the second portion are electrically connected through the bridging electrode.

[0019] Optionally, in some embodiments of the present invention, the area occupied by the first portion on the first substrate is the same as the area occupied by the area surrounded by the partition wall on the first substrate.

[0020] Optionally, in some embodiments of the present invention, the second portion is located on a side of the first portion close to the micro light-emitting diode.

[0021] The present invention also provides a display device, and the display device includes the hybrid display panel according to any one of the embodiments of the present invention.

[0022] The present invention provides a hybrid display panel and a display device. By increasing the area of the first electrode on the first substrate and using the first electrode to electrically connect the micro light-emitting diode and the electro-wetting film layer structure simultaneously, the micro light-emitting diode and the electro-wetting film layer structure can be arranged side by side between the first substrate and the second substrate, obtaining a hybrid display panel integrating the self-luminous display function of the micro light-emitting diode and the electro-wetting reflection display function, which can freely switch the display between a dark environment and a bright environment, achieving ultra-low power consumption, and at the same time having the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, thin, light, beautiful, low power consumption, simple process, and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solutions and other beneficial effects of the present application will become apparent by describing the specific embodiments of the present application in detail with reference to the accompanying drawings.

[0024] Figure 1 It is the first structural schematic diagram of the hybrid display panel provided by the embodiment of the present invention;

[0025] Figure 2 It is the second structural schematic diagram of the hybrid display panel provided by the embodiment of the present invention;

[0026] Figure 3 It is the second structural schematic diagram of the hybrid display panel provided by the embodiment of the present invention;

[0027] Figure 4 It is the structural schematic diagram of the hybrid display panel provided by the embodiment of the present invention in two different display states;

[0028] Figure 5 It is the flow chart of the preparation method of the hybrid display panel provided by the embodiment of the present invention;

[0029] Figure 6 It is the structural schematic diagram of the preparation method of the hybrid display panel provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments and / or examples of the present invention will be clearly and completely described in conjunction with the specific implementation manners of the present invention. Obviously, the described embodiments and / or examples are only a part of the embodiments and / or examples of the present invention, rather than all of them. All other embodiments and / or examples obtained by those of ordinary skill in the art without creative efforts based on the embodiments and / or examples of the present invention belong to the protection scope of the present invention.

[0031] The directional terms mentioned in the present invention, such as [up], [down], [left], [right], [front], [back], [inside], [outside], [side], etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for explaining and understanding the present invention, rather than for limiting the present invention. The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0032] Aiming at the problems of low repair rate and high repair cost existing in the existing flexible display panel, the present invention provides a flexible display panel that can solve this problem.

[0033] In one embodiment, please refer to Figure 1 and Figure 2 , Figure 1 which shows a first schematic structural diagram of the hybrid display panel provided by the embodiment of the present invention, Figure 2 which shows a second schematic structural diagram of the hybrid display panel provided by the embodiment of the present invention. As Figure 1 and Figure 2 shown, the hybrid display panel provided by the embodiment of the present invention includes a plurality of sub-pixels, including:

[0034] A first substrate 10, including a first electrode 11;

[0035] A second substrate 20, which is disposed opposite to the first substrate 10 and is located on one side of the first electrode 11;

[0036] A micro-light-emitting diode 30 and an electro-wetting film layer structure 40, the micro-light-emitting diode 30 and the electro-wetting film layer structure 40 are arranged side by side between the first substrate 10 and the second substrate 20; wherein,

[0037] Within one of the sub-pixels, the first electrode 11 is electrically connected to the micro-light-emitting diode 30 and the electro-wetting film layer structure 40 simultaneously.

[0038] By increasing the area of the first electrode on the first substrate in the embodiment of the present invention, and using the first electrode to electrically connect the micro-light-emitting diode and the electro-wetting film layer structure simultaneously, the micro-light-emitting diode and the electro-wetting film layer structure can be arranged side by side between the first substrate and the second substrate, obtaining a hybrid display panel that combines the self-luminous display function of the micro-light-emitting diode and the electro-wetting reflection display function, which can freely switch the display between a dark environment and a bright environment, achieving ultra-low power consumption, and at the same time having advantages such as high definition, high brightness, high response speed, ultra-high reflectivity, thin, light, beautiful, low power consumption, simple process, and low manufacturing cost.

[0039] Next, the hybrid display panel provided by the present invention will be described in detail through specific embodiments.

[0040] Embodiment 1

[0041] Please refer to Figure 1 , the first substrate 10 is a thin film transistor (Thin Film Transistor, abbreviated as TFT) array substrate. The first electrode 11 is disposed on one side of the first substrate 10 close to the second substrate 20. The first substrate 10 further includes a thin film transistor 13, and the first electrode 11 is electrically connected to the source or drain of the first thin film transistor 13. Figure 1 The thin film transistor 13 in Figure 1 is only for illustrative purposes. The thin film transistor 13 can be

[0042] a bottom gate structure in

[0043] or a top gate structure, and no specific limitation is made. Figure 1 The first substrate 10 further includes a third electrode 12, and the third electrode 12 is disposed on one side of the first substrate 10 close to the second substrate 20. Further, the third electrode 12 is in the same layer as the first electrode 11 and is spaced apart. The first electrode 11 is electrically connected to the first pole of the micro light emitting diode 30, and the third electrode 12 is electrically connected to the second pole of the micro light emitting diode 30.

[0044] Figure 1 The first substrate 10 shown in

[0045] is only used to exemplarily illustrate the hybrid display panel described in the embodiments of the present invention, and does not limit the hybrid display panel described in the embodiments of the present invention. Any substrate design method that only includes the first electrode 11 and the third electrode 12 and meets the driving requirements for the micro light emitting diode 30 and the electrowetting film layer structure 40 is within the scope of protection of this embodiment.

[0046] The first electrode 11 fills the area surrounded by the dam walls 50 and extends beyond the area surrounded by the dam walls. The part of the first electrode 11 located within the area surrounded by the dam walls 50 is connected to the electrowetting film layer structure 40, and the part located outside the area surrounded by the dam walls 50 is connected to the first pole of the micro light-emitting diode 30.

[0047] The electrowetting film layer structure 40 is located within the area surrounded by the dam walls 50 and is sandwiched between the first electrode 11 and the second electrode 21. The electrowetting film layer structure 40 includes an ink layer 41 and a water layer 42.

[0048] The second substrate 20 includes a cover plate 22 and the second electrode 21. The second electrode 21 is located on the side of the cover plate 22 close to the first substrate 10, and the second electrode 21 is connected to the electrowetting film layer structure 40. The second electrode 21 can be provided as a whole surface or only within the area surrounded by the dam walls 50.

[0049] The first electrode 11 and the second electrode 21 are respectively connected to both sides of the electrowetting film layer structure 40 to drive the electrowetting film layer structure 40 to perform reflection display. Therefore, the material of the first electrode 11 is a conductive material with a high reflectivity, and the material of the first electrode 11 is preferably silver or aluminum. The material of the second electrode 21 is a transparent conductive material, and the material of the second electrode 21 includes but is not limited to indium tin oxide (ITO), aluminum zinc oxide (AZO).

[0050] Embodiment 2

[0051] Please refer to Figure 2 , in this embodiment, the basic structure of the hybrid display panel is similar to that in Embodiment 1. Specifically, reference can be made to the above embodiment, which will not be elaborated here. The difference lies in that: the first substrate 10 further includes a bridging electrode 16. The first electrode 11 includes a first part 111 and a second part 112, and the first part 111 and the second part 112 are arranged at intervals. The first part 111 is located within the area surrounded by the dam walls 50, and the area occupied by the first part 111 on the first substrate 10 is the same as the area occupied by the area surrounded by the dam walls 50 on the first substrate 10. The second part 112 is located outside the area surrounded by the dam walls 50 and on the side of the first part 111 close to the micro light-emitting diode 30. The first part 111 and the second part 112 are electrically connected through the bridging electrode 16. The first part 111 is connected to the electrowetting film layer structure 40, and the second part 112 is connected to the first pole of the micro light-emitting diode 30.

[0052] In an embodiment of the present invention, the material of the retaining wall 50 is a transparent organic material. The first electrode 11 is arranged to include the first part 111 and the second part 112, and the first part 111 and the second part 112 are respectively located inside and outside the area surrounded by the retaining wall 50, avoiding the presence of the first electrode 11 at the position of the retaining wall 50, thereby avoiding the problem that the display is affected by the reflection of light by the first electrode 11 at the retaining wall 50.

[0053] Embodiment III

[0054] Please refer to Figure 3 , in this embodiment, the basic structure of the hybrid display panel is similar to that in Embodiment I. Specifically, reference can be made to the above embodiment, which will not be elaborated here. The difference lies in that: the retaining wall 50 is arranged on the outer periphery of the sub-pixel, that is, the electro-wetting film layer structure 40, the micro light-emitting diode 30, the first electrode 11 and the third electrode 12 are all located within the area surrounded by the retaining wall 50. The ink layer 41 and the water layer 42 of the electro-wetting film layer structure 40 both extend to the area where the micro light-emitting diode 30 is located. In this way, the effective display ratio of the sub-pixel is improved, and the preparation difficulty of the hybrid display panel is reduced.

[0055] Correspondingly, the present invention provides a driving method for a hybrid display panel, which is used to drive the hybrid display panel according to any one of the embodiments of the present invention. Please refer to Figure 4 , Figure 4 , in which (a) is a schematic structural diagram of the hybrid display panel when it is in the self-luminous display state, Figure 4 , in which (b) is a schematic structural diagram of the hybrid display panel when it is in the self-luminous display state. The driving method includes:

[0056] When the hybrid display panel is in the self-luminous display state, the first electrode of the hybrid display panel and the third electrode of the hybrid display panel are connected to an effective electrical signal, the second electrode of the hybrid display panel is connected to an ineffective electrical signal, and the micro light-emitting diode emits light for display under the drive of the first electrode and the third electrode;

[0057] When the hybrid display panel is in the reflective display state, the first electrode and the second electrode are connected to an effective electrical signal, the third electrode is connected to an ineffective electrical signal, and the electro-wetting film layer structure reflects light for display under the drive of the first electrode and the second electrode.

[0058] The present invention also provides a preparation method for a hybrid display panel, which is used to prepare the hybrid display panel according to the embodiment of the present invention. Please refer to Figure 5 and Figure 6 , Figure 5The flowchart of the preparation method of the hybrid display panel provided by the embodiment of the present invention is shown, Figure 6 and the schematic structural diagram of the preparation method of the hybrid display panel provided by the embodiment of the present invention is shown. The preparation method includes:

[0059] Step B11, prepare a first substrate, the first substrate includes a first electrode and a third electrode; specifically, please refer to Figure 6 (a1) in.

[0060] Step B12, prepare a micro light-emitting diode, and transfer the micro light-emitting diode to the first substrate, the first electrode is connected to the first pole of the micro light-emitting diode, and the third electrode is connected to the second pole of the micro light-emitting diode; specifically, please refer to Figure 6 (a2) in.

[0061] Step B21, prepare a second substrate, and prepare a partition wall on the second substrate; specifically, please refer to Figure 6 (b1) in.

[0062] Step B22, prepare an electrowetting film layer structure in the area surrounded by the partition wall, and the electrowetting film layer structure is connected to the first electrode; specifically, please refer to Figure 6 (b2) in.

[0063] Step B3, align and bond the first substrate and the second substrate; specifically, please refer to Figure 6 (c) in.

[0064] The present invention also provides a display device, and the display device includes the hybrid display panel according to any embodiment of the present invention. Since the display device includes the hybrid display panel according to any embodiment of the present invention, therefore, it has the technical features and beneficial effects possessed by the hybrid display panel. Specifically, please refer to the above embodiments and will not be elaborated here.

[0065] In summary, the embodiment of the present invention provides a hybrid display panel and a display device. By increasing the area of the first electrode on the first substrate, the hybrid display panel electrically connects the micro light-emitting diode and the electrowetting film layer structure simultaneously by using the first electrode, so that the micro light-emitting diode and the electrowetting film layer structure can be arranged side by side between the first substrate and the second substrate, and a hybrid display panel integrating the self-luminous display function of the micro light-emitting diode and the electrowetting reflection display function is obtained, which can freely switch the display in a dark environment and a bright environment, realizes ultra-low power consumption, and at the same time has the advantages of high definition, high brightness, high response speed, ultra-high reflectivity, lightness, beauty, low power consumption, simple process, and low manufacturing cost.

[0066] The above has introduced in detail the hybrid display panel and the display device provided by the embodiments of the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A hybrid display panel includes a plurality of sub-pixels, characterized in that, Comprising: A first substrate, including a first electrode and a third electrode which are on the same layer and arranged at intervals; A second substrate, which is arranged opposite to the first substrate and is located on one side of the first electrode; the second substrate includes a second electrode, and the second electrode is arranged on the side of the second substrate close to the first substrate; Micro light-emitting diodes and an electro-wetting film layer structure, the micro light-emitting diodes and the electro-wetting film layer structure are arranged side by side between the first substrate and the second substrate; the electro-wetting film layer structure includes an ink layer and a water layer; wherein, Within one sub-pixel, the first electrode is electrically connected to both the micro light-emitting diode and the electro-wetting film layer structure, the first electrode is electrically connected to the first pole of the micro light-emitting diode, and the third electrode is electrically connected to the second pole of the micro light-emitting diode; The hybrid display panel includes a self-luminous display state and a reflective display state; when the hybrid display panel is in the self-luminous display state, the first electrode and the third electrode are connected to an effective electrical signal, and the second electrode is connected to an ineffective electrical signal; when the hybrid display panel is in the reflective display state, the first electrode and the second electrode are connected to an effective electrical signal, and the third electrode is connected to an ineffective electrical signal.

2. The hybrid display panel according to claim 1, wherein The hybrid display panel further includes a partition wall, the partition wall connects the first substrate and the second substrate, and the electro-wetting film layer structure, the micro light-emitting diodes, the first electrode and the third electrode are all located within the area surrounded by the partition wall.

3. The hybrid display panel according to claim 1, wherein The hybrid display panel further includes a partition wall, the partition wall connects the first substrate and the second substrate, the electro-wetting film layer structure is located within the area surrounded by the partition wall, and the micro light-emitting diodes are located outside the area surrounded by the partition wall.

4. The hybrid display panel according to claim 3, wherein The first electrode includes a first part and a second part, the first part and the second part are electrically connected, the first part is connected to the electro-wetting film layer structure and is located within the area surrounded by the partition wall, and the second part is connected to the micro light-emitting diode and is located outside the area surrounded by the partition wall.

5. The hybrid display panel according to claim 4, wherein The first part and the second part are integrally formed; or, The first part and the second part are arranged at intervals, and the first substrate further includes a bridging electrode, and the first part and the second part are electrically connected through the bridging electrode.

6. The hybrid display panel according to claim 4, characterized in that, The area occupied by the first part on the first substrate is the same as the area occupied by the area surrounded by the partition wall on the first substrate.

7. The hybrid display panel according to claim 4, wherein The second part is located on the side of the first part close to the micro light-emitting diode.

8. A display device, characterized in that, Including the hybrid display panel according to any one of claims 1 to 7.

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