CN101650894A - Flexible display panel and manufacturing method thereof - Google Patents

Abstract

The invention relates to a flexible display panel and a manufacturing method thereof. The electrophoretic pixel unit and the electrowetting pixel unit are respectively arranged in the first display area and the second display area of the flexible substrate. The transparent protective layer is disposed on the electrophoretic pixel unit and the electrowetting pixel unit, and the driving circuit is disposed in the non-display region of the flexible substrate and electrically connected to the electrophoretic pixel unit and the electrowetting pixel unit. The flexible display panel can display a static picture by the electrophoresis pixel unit and display a dynamic picture by the electrowetting pixel unit, thereby simultaneously having the effects of saving electricity and displaying the dynamic picture.

Description

Flexible display panel and manufacturing method thereof

technical field

The present invention relates to a flexible display panel and a manufacturing method thereof, in particular to a flexible display panel with pixel units of different display media and a manufacturing method thereof.

Background technique

With the advancement of flat-panel display technology, more and more electronic products are equipped with display panels, especially portable electrical products, such as mobile phones, e-books, digital Camera (digital camera) and personal digital assistant (personaldigital assistant, PDA), etc. Since portable electronic products tend to be light in weight and thin in thickness, the display panels used in portable electronic products also need to have the advantages of light in weight and thin in thickness.

Based on the above, since the flexible display panel not only has the advantages of light weight and thin thickness, but also has the advantages of being flexible and unbreakable, the manufacture of the flexible display panel has become an important development trend. At present, the common flexible display panel is the electro-phoretic display panel (EPD panel), which is a kind of electric field to control the distribution of charged particles, and then change the reflectivity of the display area to the ambient light to produce a display. Display panel for the effect. Based on its display principle, the electrophoretic display panel has the characteristics of bistability and no need for an additional light source, thus meeting the requirements of modern technology for flexible display panels to have high power-saving characteristics.

However, from another point of view, the bistable characteristics of the electrophoretic display make it impossible to display movies or animations that require a high refresh rate. Therefore, how to make the flexible display panel capable of displaying colorful animations while having high power-saving characteristics is one of the issues concerned by the relevant personnel in this field.

In view of the defects existing in the above-mentioned existing flexible display panels, the inventors actively researched and innovated based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and combined with the application of academic theories, in order to create a new The flexible display panel and the manufacturing method thereof can improve the general existing flexible display panel and make it more practical. Through continuous research, design, and after repeated trials and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects of the existing flexible display panels and provide a new flexible display panel. The technical problem to be solved is to make it not only have the characteristics of high power saving, but also can The update rate is used to display dynamic pictures, which is more suitable for practical use.

Another object of the present invention is to provide a method for manufacturing a flexible display panel, so as to manufacture a flexible display panel that is highly power-saving and capable of displaying animations.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. A flexible display panel proposed according to the present invention includes a flexible substrate, a plurality of electrophoretic pixel units, a plurality of electrowetting pixel units, a light-transmitting protective layer and a driving circuit. Wherein, the flexible substrate has a first display area, a second display area and a non-display area, the electrophoretic pixel unit is arranged in the first display area of the flexible substrate, and the electrowetting pixel unit is arranged in in the second display area of the flexible substrate. The light-transmitting protection layer is disposed on the electrophoretic pixel unit and the electrowetting pixel unit, and the driving circuit is disposed in the non-display area of the flexible substrate and electrically connected to the electrophoretic pixel unit and the electrowetting pixel unit.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In an embodiment of the present invention, each electrophoretic pixel unit includes a first reflective layer, an electrophoretic layer, a first pixel electrode and a first thin film transistor. Wherein, the electrophoretic layer has a plurality of charged particles, and it is disposed above the first reflective layer, and the first pixel electrode is disposed between the electrophoretic layer and the first reflective layer, and is electrically connected to the first thin film transistor . In an embodiment of the present invention, the electrophoretic layer may be a microcup electrophoretic layer or a microcapsule electrophoretic layer.

In an embodiment of the present invention, the charged particles in each electrophoretic pixel unit may be red charged particles, green charged particles or blue charged particles. In another embodiment, there may also be black charged particles and white charged particles.

In an embodiment of the present invention, each electrowetting pixel unit includes a second reflective layer, an electrowetting layer, a second pixel electrode, and a second thin film transistor. Wherein, the electrowetting layer is arranged above the second reflective layer, and includes microcups, light-transmitting solution and dyeing solution. Both the light-transmitting solution and the dyeing solution are poured into the microcup, and the light-transmitting solution has conductivity or polarity, while the dyeing solution and the light-transmitting solution are immiscible and located below the light-transmitting solution. The second pixel electrode is arranged between the second reflective layer and the electric wetting layer, and is electrically connected to the second thin film transistor.

In an embodiment of the present invention, the light-transmitting solution may be water, and the dyeing solution may be ink. Wherein, the dyeing solution is, for example, red ink, green ink or blue ink. In addition, the dyeing solutions of these electrowetting layers may also all be black ink.

In an embodiment of the present invention, the above-mentioned flexible display panel may further include a color filter disposed between the light-transmitting protective layer and the electrophoretic pixel unit and the electrowetting pixel unit.

The purpose of the present invention and the solution to its technical problem also adopt the following technical solutions to achieve. According to a manufacturing method of a flexible display panel proposed by the present invention, the implementation step is to firstly form a flexible substrate on a glass substrate. Wherein, the flexible substrate has a first display area, a second display area and a non-display area. Next, a plurality of electrophoretic pixel units are formed in the first display area of the flexible substrate, and a plurality of electrowetting pixel units are formed in the second display area of the flexible substrate. Then, a light-transmitting protective layer is formed to cover the electrophoretic pixel unit and the electrowetting pixel unit, and then the glass substrate is separated from the flexible substrate.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In an embodiment of the present invention, the step of forming the electrophoretic pixel unit and the electrowetting pixel unit includes forming a plurality of first thin film transistors and a plurality of second thin film transistors on a flexible substrate, wherein the first thin film transistors are located on In the first display area, the second thin film transistors are located in the second display area. Next, a plurality of first pixel electrodes and a plurality of second pixel electrodes are formed on the flexible substrate, wherein the first pixel electrodes are located in the first display area, and each first thin film transistor is electrically connected to the corresponding first pixel electrode. a pixel electrode. The second pixel electrodes are located in the second display area, and each second thin film transistor is electrically connected to the corresponding second pixel electrodes. Then, an electrophoretic layer with a plurality of charged particles is formed on the first pixel electrode, and an electrowetting layer is formed on each second pixel electrode. The step of forming each electrowetting layer includes forming a microcup, and then filling each microcup with a light-transmitting solution and a dyeing solution. Wherein, the light-transmitting solution has conductivity or polarity, and the dyeing solution and the light-transmitting solution are incompatible with each other, and are located below the light-transmitting solution.

In an embodiment of the present invention, the above-mentioned electrophoretic layer may be a microcup type electrophoretic layer or a microcapsule type electrophoretic layer, and in each electrophoretic pixel unit, the above-mentioned charged particles may include black charged particles and white charged particles, or may be Red charged particles, green charged particles or blue charged particles. On the other hand, the above dyeing solution may be red ink, green ink or blue ink. Of course, black ink may also be used.

In an embodiment of the present invention, before forming the light-transmitting protective layer, a color filter may also be formed on the electrophoretic pixel unit and the electrowetting pixel unit.

With the above technical solution, the flexible display panel and its manufacturing method of the present invention have at least the following advantages:

Because the present invention uses both electrophoretic pixel units and electrowetting pixel units in a single flexible display panel, it can use the bistable characteristics of the electrophoretic layer to display static images (such as text), and use the electrowetting layer to quickly change Display the characteristics of the state to display dynamic pictures (such as movies or animations, etc.). In other words, the flexible display panel of the present invention can simultaneously save power and display dynamic images.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1A is a schematic cross-sectional view of a flexible display panel in a dark state according to the first embodiment of the present invention.

FIG. 1B is a schematic cross-sectional view of the flexible display panel in a bright state according to the first embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of the flexible display panel in the second embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of a flexible display panel in a third embodiment of the present invention.

4A to 4D are cross-sectional views of the process of the flexible display panel in an embodiment of the present invention.

100, 200: flexible display panel

101: Glass substrate 110: Flexible substrate

112: The first display area 114: The second display area

116: Non-display area 120: Electrophoretic pixel unit

122: The first reflective layer 124: Electrophoretic layer

125, 131: microcup 126: first pixel electrode

127: Dielectric solution 128: The first thin film transistor

129, 129b, 129w: charged particles 130: electrowetting pixel unit

132: Second reflective layer 133: Translucent solution

134: Electrowetting layer 135: Dyeing solution

136: second pixel electrode 138: second thin film transistor

140: light-transmitting protective layer 150: drive circuit

160: color filter 170: edge colloid

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation methods and methods of the flexible display panel and its manufacturing method proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , steps, features and effects thereof are described in detail below.

1A is a schematic cross-sectional view of the flexible display panel of the present invention in a dark state in the first embodiment, and FIG. 1B is a schematic cross-sectional view of the flexible display panel of the present invention in a bright state in the first embodiment. 1A and 1B, the flexible display panel 100 includes a flexible substrate 110, a plurality of electro-phoretic pixel units 120, a plurality of electro-wetting pixel units 130, a light-transmitting protection layer 140 and driver circuit 150 . Wherein, the flexible substrate 110 has a first display area 112 , a second display area 114 and a non-display area 116 . The electrophoretic pixel unit 120 is disposed in the first display area 112 , and the electrowetting pixel unit 130 is disposed in the second display area 114 . Here, to make the drawing more concise, only one electrophoretic pixel unit 120 and one electrowetting pixel unit 130 are drawn in the first display area 112 and the second display area 114 respectively.

In this embodiment, each electrophoretic pixel unit 120 includes a first reflective layer 122 , an electrophoretic layer 124 , a first pixel electrode (pixel electrode) 126 and a first thin film transistor (thin film transistor, TFT) 128 . In each electrophoretic pixel unit 120, the electrophoretic layer 124 having a plurality of charged particles 129 is arranged above the first reflective layer 122, and the first pixel electrode 126 is arranged between the first reflective layer 122 and the electrophoretic layer 124, and It is electrically connected with the first thin film transistor 128 . Wherein, the first reflective layer 122 is, for example, formed on the flexible substrate 110 together with the gate or source/drain (not shown) of the first thin film transistor 128 in the same manufacturing process.

The electrophoretic layer 124 of this embodiment is, for example, a microcup type electrophoretic layer. Specifically, in each electrophoretic pixel unit 120, the electrophoretic layer 124 of this embodiment includes a microcup (microcup) 125, a dielectric solution 127 and a plurality of charged particles 129, wherein the microcup 125 is used to carry the dielectric solution 127 and charged particles 129 , and the charged particles 129 will change their positions in the dielectric solution 127 in response to the electric field in the electrophoretic pixel unit 120 . In this embodiment, the charged particles 129 include black charged particles 129 b and white charged particles 129 w with opposite electrical properties.

As shown in FIG. 1A, in the electrophoretic pixel unit 120, when the black charged particles 129b move to the surface of the dielectric solution 127 in response to the electric field in the electrophoretic pixel unit 120, the electrophoretic pixel unit 120 will absorb the incident ambient light from the outside, Thus, a dark picture is displayed. Conversely, as shown in FIG. 1B, when the white charged particles 129w move to the surface of the dielectric solution 127 in response to the electric field change in the electrophoretic pixel unit 120, the electrophoretic pixel unit 120 can reflect the external incident environment through the first reflective layer 122. light to display a bright state picture.

Since the position of the charged particles 129 in the dielectric solution 127 changes in response to the change of the electric field in the electrophoretic pixel unit 120, the electrophoretic pixel unit 120 will not change its display state without changing the electric field of the electrophoretic pixel unit 120 , even after the power supplied to the electrophoretic pixel unit 120 is turned off, its display state will not change. Therefore, only when the display state of the electrophoretic pixel unit 120 needs to be changed, it needs to be powered. It can be seen that the flexible display panel 100 can use the electrophoretic pixel units 120 in the first display area 112 to display static images, so as to save power.

It is worth mentioning that, in the second embodiment of the present invention, the electrophoretic layer in the electrophoretic pixel unit 120 may also be a capsule electrophoretic layer 224 , as shown in FIG. 2 .

Referring again to FIG. 1A , each electrowetting pixel unit 130 disposed in the second display region 114 includes a second reflective layer 132 , an electrowetting layer 134 , a second pixel electrode 136 and a second thin film transistor 138 . Wherein, the electrowetting layer 134 is disposed above the second reflective layer 132 and includes a microcup 131 , a light-transmitting solution 133 and a dyeing solution 135 . The light-transmitting solution 133 and the dyeing solution 135 are poured into the microcup 131 . In other words, the microcup 131 is used to carry the light-transmitting solution 133 and the dyeing solution 135 in each electrowetting pixel unit 130 . Wherein, the dyeing solution 135 and the light-transmitting solution 133 are incompatible with each other. In this embodiment, the transparent solution 133 is water, and the dyeing solution 135 is black ink. Moreover, since the bottom surface of the microcup 131 is hydrophobic, the dyeing solution 135 is located under the light-transmitting solution 133 and covers the bottom surface of the microcup 131 in an initial state.

The second pixel electrode 136 is disposed between the second reflective layer 132 and the electrowetting layer 134 , and is electrically connected to the second thin film transistor 138 . In this embodiment, the second reflective layer 132 is, for example, formed on the flexible substrate 110 together with the gate or source/drain (not shown) of the second thin film transistor 138 in the same process.

Based on the above, since the light-transmitting solution 133 has conductivity or polarity, when a voltage is applied to the second pixel electrode 136 through the second thin film transistor 138, an electric field is generated between the light-transmitting solution 133 and the second pixel electrode 136 , the surface tension between the light-transmitting solution 133 and the dyeing solution 135 will change, so that the dyeing solution 135 is squeezed by the light-transmitting solution 133 to shrink and deform, and expose part of the surface of the bottom of the microcup 131, as shown in FIG. 1B . At this time, the electrowetting pixel unit 130 can reflect the ambient light incident from the outside through the second reflective layer 132 to display bright images. On the contrary, as shown in FIG. 1A , when no voltage is applied to the second pixel electrode 136, the dyeing solution 135 covers the bottom surface of the microcup 131. At this time, the incident ambient light from the outside will be absorbed by the dyeing solution, thus A dark screen is displayed.

Since the surface tension between the light-transmitting solution 133 and the dyeing solution 135 can change rapidly with the magnitude of the electric field between the light-transmitting solution 133 and the second pixel electrode 136, the flexible display panel 100 can pass through the second display area. These electrowetting pixel units 130 in 114 are used to display a dynamic picture with a fast picture update speed.

In particular, the second thin film transistor 138 is manufactured in the same manufacturing process as the first thin film transistor 128 of the electrophoretic pixel unit 120, and these first thin film transistor 128 and the second thin film transistor 138 can be active thin film transistors, or can be It is a passive thin film transistor. In addition, the second pixel electrode 136 is fabricated by the same manufacturing process as the first pixel electrode 126 of the electrophoretic pixel unit 120 , which will be further described later.

Please continue to refer to FIG. 1A and FIG. 1B , the light-transmitting protective layer 140 is disposed on the electrophoretic pixel unit 120 and the electrowetting pixel unit 130 , and the driving circuit 150 is disposed in the non-display area 116 of the flexible substrate 110 , and electrically connected to the electrophoretic pixel units 120 and the electrowetting pixel units 130 for controlling the display states of the electrophoretic pixel units 120 and the electrowetting pixel units 130 . In addition, the flexible display panel 100 also includes an edge glue 170, which is disposed at the junction of the non-display area 116 and the first display area 112 or the second display area 114, and is used to seal the electrophoretic layer 124 and the electrowetting layer 134 in a removable Between the flexible substrate 110 and the transparent protective layer 140 .

In addition, the flexible display panel 100 of this embodiment also arranges a color filter (color filter) 160 between the light-transmitting protective layer 140 and the electrophoretic pixel unit 120 and the electrowetting pixel unit 130, so that the first reflective layer 122 The light reflected by the second reflective layer 132 is converted into colored light, so that the flexible display panel 100 can display a full-color gamut color image.

It is worth mentioning that, in addition to disposing the color filter 160 , the colored electrophoretic layer 124 can also be used directly to enable the flexible display panel 100 to display a full-color gamut color image. For example, the electrophoretic layer 124 in each electrophoretic pixel unit 120 may only have white charged particles 129w or black charged particles 129b, and then match the color of the dielectric solution 127, even if the flexible display panel 100 can display full color gamut images effect. Those familiar with this technique should understand its technical details, so I won't repeat them here.

FIG. 3 is a schematic cross-sectional view of a flexible display panel in a third embodiment of the present invention. Please refer to FIG. 3 , the difference between the flexible display panel 200 of this embodiment and the flexible display panel 100 of the first embodiment is that the charged particles 129 in the electrophoretic layer 124 of this embodiment are colored charged particles, Therefore, when the charged particles 129 move toward the surface of the dielectric solution 127 in response to the electric field in the electrophoretic pixel unit 120 , the color displayed by the electrophoretic pixel unit 120 is the color of the charged particles 129 . In this embodiment, the electrophoretic pixel units 120 may have red, green or blue charged particles 129 respectively, so as to display a full-color gamut picture according to the combination of the three primary colors. In addition, the dielectric solution 127 is a dark solution, such as a black solution.

Moreover, in the electrowetting layer 134 of this embodiment, the dyeing solution 135 can be red, green or blue ink, and it is filled into the microcup 131 by ink jet printing, for example. In this way, in the electrowetting pixel unit 130 where no voltage is applied to the second pixel electrode 136 , the light reflected by the second reflective layer 132 can be converted into colored light by the dyeing solution 135 .

It can be seen from the above that since the flexible display panel 200 directly uses the colored electrophoretic layer 124 and the electrowetting layer 134 as the display media of the electrophoretic pixel unit 120 and the electrowetting pixel unit 130 respectively, there is no need to place a layer on the light-transmitting protective layer 140 By configuring the color filter, the flexible display panel 200 can display a color image.

In order for those skilled in the art to further understand the manufacturing process of the flexible display panel of the present invention, examples are given below to illustrate.

4A to 4D are cross-sectional views of the process of the flexible display panel in an embodiment of the present invention. Referring to FIG. 4A , firstly, a flexible substrate 110 is formed on a glass substrate 101 . Wherein, the method of forming the flexible substrate 110 is, for example, coating polyimide (PI for short) on the glass substrate 101 . Next, a plurality of electrophoretic pixel units are formed in the first display region 112 of the flexible substrate 110 , and a plurality of electrowetting pixel units are formed in the second display region 114 . Among them, the step of forming the electrophoretic pixel unit and the electrowetting pixel unit is, for example, first forming a plurality of first thin film transistors 128 and a first reflective layer 122 in the first display area 112 , and forming a plurality of second thin film transistors 128 in the second display area 114 . TFT 138 and second reflective layer 132 . As mentioned above, the first reflective layer 122 is formed on the flexible substrate 110 together with the gate or source/drain (not shown) of the first thin film transistor 128 in the same process, and the second reflective The layer 132 can be formed on the flexible substrate 110 together with the gate or source/drain (not shown) of the second thin film transistor 138 in the same process. Moreover, the first thin film transistor 128 and the second thin film transistor 138 can be formed on the flexible substrate 110 at the same time by the same manufacturing process.

Referring to FIG. 4B , a plurality of first pixel electrodes 126 are formed on the first reflective layer 122 , and a plurality of second pixel electrodes 136 are formed on the second reflective layer 132 at the same time. Wherein, the material of the first pixel electrode 126 and the second pixel electrode 136 can be indium tin oxide (Indium Tin Oxide, ITO), indium zinc oxide (Indium Zinc Oxide, IZO) or other transparent metal oxides, and each A pixel electrode 126 is respectively electrically connected to its corresponding first thin film transistor 128 , and each second pixel electrode 136 is respectively electrically connected to its corresponding second thin film transistor 138 .

Please refer to FIG. 4C , after forming the first pixel electrode 126 and the second pixel electrode 136 , an electrophoretic layer 124 having a plurality of charged particles 129 is formed on the first pixel electrode 126 , and on each second pixel electrode 136 An electrowetting layer 134 is formed. Wherein, the electrophoretic layer 124 can be not only the microcup type electrophoretic layer shown in this embodiment, but also a capsule type electrophoretic layer (as shown in FIG. 2 ), and the charged particles 129 in a single electrophoretic pixel unit 120 can be Charged particles that are black or white, or both black and white. Even colored (such as red, green or blue) charged particles. The detailed manufacturing process of the electrophoretic layer 124 is well known to those skilled in the art and will not be repeated here.

The manufacturing process of the electrowetting layer 134 is to form a plurality of microcups 131 first, wherein each microcup 131 is located above the corresponding second pixel electrode 136 . Next, fill the light-transmitting solution 133 and the dyeing solution 135 into each microcup 131 . In this embodiment, the light-transmitting solution 133 is, for example, water, and the dyeing solution 135 is, for example, ink, which can be filled into each microcup 131 by inkjet printing, and the color of the dyeing solution 135 can be black or Color (such as red, green or blue).

Please refer to FIG. 4D, a light-transmitting protective layer 140 is formed on the electrophoretic pixel unit 120 and electrowetting pixel unit 130 formed above, and a driving circuit 150 is formed in the non-display area 116 of the flexible substrate 110, and then the glass substrate The material 101 is separated from the flexible substrate 110 , that is, the manufacturing process of the flexible display substrate 100 is roughly completed. Wherein, the method for separating the glass substrate 101 from the flexible substrate 110 is, for example, a laser lift-off method, that is, irradiating the glass substrate 101 with a laser to separate it from the flexible substrate 110 .

It is worth mentioning that, in order to seal the electrophoretic layer 124 and the electrowetting layer 134 between the flexible substrate 110 and the light-transmitting protective layer 140 , generally after the light-transmitting protective layer 140 is formed, a non-conductive layer of the flexible substrate 110 is formed. Edge glue 170 is formed at the junction of the display area 116 , the first display area 112 and the second display area 114 .

In addition, if the charged particles 129 of the electrophoretic layer 124 formed in FIG. 4C are black or white, and the dyeing solution 135 in the electrowetting layer 134 is a black solution, before forming the light-transmitting protective layer 140, the electrophoretic A color filter 160 as shown in FIG. 1 is formed on the layer 124 and the electrowetting layer 134, so that the fabricated flexible display panel can display a full-color gamut color picture.

In summary, since the flexible display panel of the present invention has both electrophoretic pixel units and electrowetting pixel units, it is possible to use the bistable characteristics of the electrophoretic layer to display static images (such as text), and use the electrowetting layer The characteristics of the display state can be quickly changed to display dynamic images (such as movies or animations, etc.). In other words, the flexible display panel of the present invention can simultaneously save power and display dynamic images.

Moreover, in the process of the flexible display panel of the present invention, the process compatibility of the electrophoretic pixel unit and the electrowetting pixel unit is high, that is to say, most components or film layers of the electrophoretic pixel unit and the electrowetting pixel unit can be in the same The manufacturing process is completed, so the manufacturing cost is not far from the conventional electrophoretic display panel or electrowetting display panel.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A flexible display panel, characterized in that it comprises: A flexible substrate has a first display area, a second display area and a non-display area; a plurality of electrophoretic pixel units arranged in the first display area of the flexible substrate; a plurality of electrowetting pixel units arranged in the second display area of the flexible substrate; a light-transmitting protective layer disposed on the electrophoretic pixel units and the electrowetting pixel units; and A driving circuit is arranged in the non-display area of the flexible substrate, wherein the electrophoretic pixel unit and the electrowetting pixel unit are respectively electrically connected to the driving circuit. 2. The flexible display panel according to claim 1, wherein the electrophoretic pixel unit comprises: a first reflective layer; An electrophoretic layer has a plurality of charged particles, and the electrophoretic layer is disposed above the first reflective layer; a first pixel electrode disposed between the first reflective layer and the electrophoretic layer; and A first thin film transistor is electrically connected to the first pixel electrode. 3. The flexible display panel according to claim 2, wherein the swimming layer is a microcup electrophoretic layer or a capsule electrophoretic layer. 4. The flexible display panel according to claim 1, wherein the electrowetting pixel unit comprises: a second reflective layer; An electrowetting layer is disposed above the second reflective layer, and the electrowetting layer includes: a microcup; A light-transmitting solution, which is injected into the microcup, and the light-transmitting solution has conductivity or polarity; A dyeing solution, injected into the microcup, and the dyeing solution is immiscible with the light-transmitting solution, and is located below the light-transmitting solution; a second pixel electrode disposed between the second reflective layer and the microcup; and A second thin film transistor is electrically connected to the second pixel electrode. 5. The flexible display panel according to claim 1, further comprising a color filter disposed between the light-transmitting protection layer, the electrophoretic pixel unit, and the electrowetting pixel unit. 6. A method for manufacturing a flexible display panel, characterized in that it comprises: forming a flexible substrate on a glass substrate, wherein the flexible substrate has a first display area, a second display area and a non-display area; forming a plurality of electrophoretic pixel units in the first display area of the flexible substrate; forming a plurality of electrowetting pixel units in the second display area of the flexible substrate; forming a light-transmitting protective layer to cover the electrophoretic pixel units and the electrowetting pixel units; forming a driving circuit in the non-display area of the flexible substrate, wherein the driving circuit is electrically connected to the electrophoretic pixel units and the electrowetting pixel units; and The glass substrate and the flexible substrate are separated. 7. The method for manufacturing a flexible display panel according to claim 6, wherein the step of forming the electrophoretic pixel unit and the electrowetting pixel unit comprises: A plurality of first thin film transistors, a first reflective layer, a plurality of second thin film transistors, and a second reflective layer are formed on the flexible substrate, wherein the first thin film transistors and the first reflective layer are located on the first display area, and the second thin film transistors and the second reflective layer are located in the second display area; A plurality of first pixel electrodes and a plurality of second pixel electrodes are formed on the flexible substrate, wherein the first pixel electrodes are located above the first reflective layer, and each of the first thin film transistors is electrically connected to the corresponding a first pixel electrode, and these second pixel electrodes are located above the second reflective layer, and each of the second thin film transistors is electrically connected to the corresponding second pixel electrode; forming an electrophoretic layer with a plurality of charged particles above the first pixel electrodes; An electrowetting layer is formed above each of the second pixel electrodes, including: forming a microcup; and Fill a light-transmitting solution and a dyeing solution into each of the microcups, wherein the light-transmitting solution is conductive or polar, and the dyeing solution and the light-transmitting solution are immiscible and located below the light-transmitting solution . 8. The method for manufacturing a flexible display panel according to claim 7, wherein the electrophoretic layer is a microcup electrophoretic layer or a microcapsule electrophoretic layer. 9. The method of manufacturing a flexible display panel according to claim 6, wherein the method of filling the light-transmitting solution and the dyeing solution of each electrowetting layer comprises: Filling the microcup with ink as the dyeing solution by an inkjet process; and Fill the microcup with water as the light-transmitting solution. 10. The method for manufacturing a flexible display panel according to claim 6, further comprising forming a color filter on the electrophoretic pixel unit and the electrowetting pixel unit before forming the light-transmitting protective layer. piece.

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