CN112864200A - Display panel and manufacturing method thereof - Google Patents
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- CN112864200A CN112864200A CN202110034681.3A CN202110034681A CN112864200A CN 112864200 A CN112864200 A CN 112864200A CN 202110034681 A CN202110034681 A CN 202110034681A CN 112864200 A CN112864200 A CN 112864200A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
Abstract
A display panel and a control method thereof, the display panel including: a display panel main body; the conversion layer is attached to one side of the display panel main body; and a light source conversion layer for emitting the first light and the second light; when the conversion layer is irradiated by the first light, the conversion layer is in a first state, when the conversion layer is irradiated by the second light, the conversion layer is in a second state, and the height of the conversion layer in the first state along the plane where the display surface is located is different from the height of the conversion layer in the second state along the plane where the display surface is located; the beneficial effects are that: the change of the light source emitted by the light source conversion layer drives the state of the conversion layer to change, so that the display panel can sound, the loudspeaker is replaced, and the miniaturization and the thinning of the display panel are realized.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a manufacturing method thereof.
Background
At present, Organic Light Emitting Diode (OLED) display panels are becoming the mainstream products of flat panel displays.
The conventional OLED display panel emits sound through a speaker during displaying, and the use of the speaker as a sound generating device prevents the audio/video equipment from being miniaturized and thinned. The conventional sound production technology is still adopted in the sound production device of the OLED display panel at the leading edge of the prior art, which limits the development of the OLED display technology to a more fashionable, more unique and more technical prospective direction to a certain extent.
Therefore, in the conventional OLED display panel technology, there is a problem that the speaker is used as a generating device, which limits the development of the display panel toward miniaturization and thinning, and improvement is urgently needed.
Disclosure of Invention
The invention relates to a display panel and a manufacturing method thereof, which are used for solving the problem that the development of the display panel towards miniaturization and thinning is limited by adopting a loudspeaker as a generating device in the prior art.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the present invention provides a display panel, including:
a display panel main body;
the conversion layer is attached to one side of the display panel main body; and
a light source conversion layer for emitting first light and second light;
when the conversion layer is irradiated by the second light, the conversion layer is in a second state, and the height of the conversion layer in the first state along a plane where the display surface is located is different from the height of the conversion layer in the second state along the plane where the display surface is located.
In some embodiments, the material of the transition layer includes an azophenyl polymer.
In some embodiments, the azophenyl polymers include: c4AzoC11 OH.
In some embodiments, the predetermined wavelength range of the first light is: 500 nm to 560 nm; the preset wavelength range of the second light is as follows: 330 nm to 380 nm.
In some embodiments, the light intensity of the first light and/or the second light is proportional to a frequency and an amplitude of a height change of the conversion layer along a plane perpendicular to the display surface, the frequency of the height change of the conversion layer along the plane perpendicular to the display surface is a frequency of the conversion layer switching from the first state to the second state, and the amplitude of the height change of the conversion layer along the plane perpendicular to the display surface is a difference value of the height change of the conversion layer along the plane perpendicular to the display surface switching from the first state to the second state.
In some embodiments, the range of the ratio of the absolute value of the height difference of the conversion layer along the plane perpendicular to the display surface to the height of the conversion layer along the plane perpendicular to the display surface when not illuminated by the light source conversion layer is: 40% to 50%; the absolute value of the height difference of the transition layer along the plane perpendicular to the display surface is the absolute value of the difference between the height of the transition layer along the plane perpendicular to the display surface in the first state and the height of the transition layer along the plane perpendicular to the display surface in the second state.
In some embodiments, the light source conversion layer includes a first light source conversion layer and a second light source conversion layer on a side of the conversion layer away from the display panel main body, the first light source conversion layer is used for emitting the first light, and the second light source conversion layer is used for emitting the second light.
In some embodiments, the display panel further includes a first buffer layer disposed between the conversion layer and the display panel body, and a second buffer layer disposed between the conversion layer and the light source conversion layer.
The application also provides a display device, which comprises the display panel.
The present application further provides a control method of a display panel, where the display panel is the display panel described in any one of the above, and the method includes the following steps:
receiving a sound signal;
controlling the light source conversion layer to emit the first light or the second light according to the sound signal such that the conversion layer is in the first state or the second state.
Compared with the prior art, the display panel and the control method thereof provided by the invention have the beneficial effects that:
the present invention provides a display panel, comprising: a display panel main body; the conversion layer is attached to one side of the display panel main body; and a light source conversion layer for emitting the first light and the second light; when the conversion layer is irradiated by the first light, the conversion layer is in a first state, when the conversion layer is irradiated by the second light, the conversion layer is in a second state, and the height of the conversion layer in the first state along a plane where the display surface is located is different from the height of the conversion layer in the second state along the plane where the display surface is located; the change of the light source emitted by the light source conversion layer drives the state of the conversion layer to change, so that the display panel can sound, the loudspeaker is replaced, and the miniaturization and the thinning of the display panel are realized.
Drawings
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic view of a second structure of the display panel according to the embodiment of the invention.
Fig. 3(a) is a schematic structural diagram of a transition layer in a first state according to an embodiment of the present invention.
Fig. 3(b) is a schematic view of a first structure of a transition layer in a second state according to an embodiment of the present invention.
Fig. 3(c) is a schematic diagram of a second structure of the transition layer in the second state according to the embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a change in molecular structure of an azo-phenyl polymer subjected to a cis-trans isomerization reaction according to an embodiment of the present invention.
Fig. 5 is a schematic flow chart illustrating a manufacturing method of a display panel according to an embodiment of the present invention.
Fig. 6 is a schematic flow chart illustrating a manufacturing method of a display panel according to an embodiment of the present invention.
Fig. 7(a) to 7(e) are process flow diagrams of the display panel according to the embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The present invention provides a display panel and a control method thereof, and particularly refer to fig. 1 to 7 (e).
The conventional OLED display panel emits sound through a speaker during displaying, and the use of the speaker as a sound generating device prevents the audio/video equipment from being miniaturized and thinned. Therefore, the traditional sound production technology is still adopted in the sound production device of the OLED display panel at the front of the prior art, the thickness and the process complexity of the OLED display panel are increased, and the development of the OLED display technology to a more fashionable, more unique and more technical prospective direction is limited to a certain extent. Therefore, the present invention provides a display panel and a method for manufacturing the same to solve the above-mentioned problems.
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present invention. According to the display panel 1 provided by the invention, firstly, the display panel 1 is an OLED display panel, as can be seen from fig. 1, the display panel 1 is rectangular, and four outer corners of the display panel 1 are all in a rounded corner structure, so that inconvenience in use and even scratching of fingers of a user can be avoided. When the display panel 1 is used, if the display surface of the display panel is facing to the eyes of the user, that is, the display surface is parallel to the eyes of the user, the user can obtain the optimal viewing angle of the display surface.
Further, the display panel 1 is a folding display panel or a non-folding display panel; when the display panel 1 is a folding display panel, the conversion layer 13 and the light source conversion layer 15 are only disposed in a non-folding region of the display panel 1, so as to avoid affecting the folding effect of the display panel 1 when the form of the conversion layer 13 changes.
The display surface is a page in the display panel 1 for displaying various real-time image information to a user.
Fig. 2 is a schematic view of a second structure of the display panel according to the embodiment of the present invention. Which is also a cross-sectional view of the display panel 1 in fig. 1 along a-a. As can be seen from fig. 2, the display panel 1 includes: a display panel main body 11; a conversion layer 13 attached to one side of the display panel body 11; and a light source conversion layer 15 for emitting the first light and the second light; when the transition layer 13 is irradiated by the first light, the transition layer 13 is in a first state, and when the transition layer 13 is irradiated by the second light, the transition layer 13 is in a second state, and the height of the transition layer 13 in the first state along a plane where the display surface is located is different from the height of the transition layer 13 in the second state along a plane where the display surface is located.
It can be understood that the color and wavelength of the first light are different from those of the second light, when the light source conversion layer 15 irradiates the conversion layer 13 and the color of the light source emitted by the light source conversion layer 15 changes, the state of the conversion layer 13 changes, and the height of the conversion layer 13 along the plane perpendicular to the display surface changes before and after the state of the conversion layer 13 changes; that is, when the light source conversion layer 15 emits the first light, the conversion layer 13 is in the first state, and when the light source conversion layer 15 emits the second light, the conversion layer 13 is in the second state, in other words, the first light corresponds to the conversion layer 131 in the first state, and the second light corresponds to the conversion layer 132 in the second state; that is, when the light source conversion layer 15 emits the first light, the conversion layer 131 in the first state of the conversion layer 13; when the light source of the light source conversion layer 15 is the second light source, the conversion layer 132 of the conversion layer 13 in the second state is shown in detail in fig. 3(a), which is a schematic structural diagram of the conversion layer in the first state according to the embodiment of the present invention; fig. 3(b) is a schematic diagram of a first structure of the transition layer in the second state according to the embodiment of the present invention.
Further, the height of the transition layer 13 in the first state along the plane perpendicular to the display surface is different from the height of the transition layer 13 in the second state along the plane perpendicular to the display surface, and when the height of the transition layer 13 along the plane perpendicular to the display surface changes, the overall vibration of the display panel 1 is caused, so that the display panel 1 generates sound.
As can be seen from fig. 3(a), 3(b) and 3(c), the length of the transition layer 13 along the second direction X is constant, and when the height of the transition layer 13 along the plane perpendicular to the display surface changes, the length of the transition layer 13 along the first direction Y changes. Fig. 3(a) is a schematic structural diagram of a transition layer in a first state according to an embodiment of the present invention. The length of the transition layer 131 in the first state along the first direction Y is a first length H1. Fig. 3(b) is a schematic view of a first structure of a transition layer in a second state according to an embodiment of the present invention. One of the lengths of the transition layer 132 in the first direction Y in the second state is a second length H2, and the second length H2 is less than the first length H1. Fig. 3(c) is a schematic diagram of a second structure of the transition layer in the second state according to the embodiment of the present invention. Another length of the transition layer 132 in the second state along the first direction Y is a third length H3, and the third length H3 is greater than the first length H1. That is, the height of the transition layer 13 in the second state along the plane perpendicular to the display surface is different from the height of the transition layer 13 in the first state along the plane perpendicular to the display surface, and the volume of the transition layer 13 in the second state is greater than or less than the volume of the transition layer 13 in the first state; in other words, the length of the transition layer 13 in the second state along the first direction Y is greater than or less than the length of the transition layer 13 in the first state along the first direction Y.
In the present invention, the first direction Y is a vertical direction, i.e. a direction perpendicular to the display surface of the display panel 1; the second direction X is a horizontal direction, i.e. a direction parallel to the display surface of the display panel 1 and perpendicular to the side surface of the display panel 1.
In an embodiment, the light source conversion layer 15 may adopt a combination structure of a light guide plate and a light source, that is, the light guide plate is disposed above the orthographic projection of the conversion layer 13 deviating from one side of the display panel main body 11, and the light source is disposed at one of the left and right ends of the display panel main body 11, when the light source receives a start operation signal, the light source emits light, and the light guide plate reflects the light emitted by the light source to the conversion layer 13 through the light guide plate, so that the state of the conversion layer 13 changes, and further the change of the height of the conversion layer 13 along a plane perpendicular to the display surface is caused. Although the arrangement mode of using the combination structure of the light guide plate and the light source to replace the single light source conversion layer 15 has a more complex structure, and in the process of transmitting the light to the light guide plate and then irradiating the light to the conversion layer 13 through the light guide plate, a part of light is lost or the intensity of the light irradiated by the local area of the conversion layer 13 is different, in general, the normal light emission of the display panel 1 can be ensured.
In another embodiment, the light source conversion layer 15 is disposed on a side of the conversion layer 13 away from the display panel main body 11 along the first direction Y, that is, above an orthographic projection of the conversion layer 13 away from the display panel main body 11, and when the light source conversion layer 15 receives a start operation signal, light emitted from the light source conversion layer 15 directly irradiates the conversion layer 13, so that compared with the previous design scheme of the light source conversion layer 15, the light source conversion layer 15 can be directly and maximally ensured to uniformly irradiate on the conversion layer, that is, the light emitting rate and uniformity of light can be maximally ensured, and the sound emission agility of the display panel 1 can be further improved.
Further, the material of the transition layer 13 is an azo-phenyl polymer. The azophenyl polymers include: c4AzoC11OH, an azobenzene molecule 11- (4- ((4-butylphenyl) diazenyl) phenoxy) undecan-1-ol, whose corresponding molecular formula is abbreviated as C4AzoC11OH, and whose corresponding molecular formula has the structure:
further, referring to fig. 4, a schematic diagram of a change of a molecular structure of an azo-phenyl polymer subjected to a cis-trans isomerization reaction according to an embodiment of the present invention is shown. Since the material of the transition layer 13 is an azobenzene polymer, the structure of the transition layer 13 includes azobenzene molecules, and therefore, when strong light irradiates the display panel 1 or a voltage is applied to the display panel 1, the structure of the transition layer 13 changes, namely reversible cis-trans isomerism, namely the cis-form azobenzene molecule is changed into the trans-form azobenzene molecule, the corresponding molecular diameter is changed from 0.55 nm to 0.90 nm, the volume is expanded because the dipole moment of the molecule is greatly changed while the cis-trans isomerism is generated, at this time, the interaction between the azobenzene group composed of many azobenzene molecules and the surrounding environment will also change, resulting in macroscopic size change of the material, resulting in larger molecular diameter and thus larger volume of the transition layer 13. When the light emitted from the light source conversion layer 15 is maintained in the second light state, the volume of the conversion layer 13 changes alternately between expansion and contraction, and the expansion occurs, thereby causing the display panel 1 to generate sound.
Further, the first light and the second light both have a certain preset wavelength range; the preset wavelength range of the first light is as follows: 500 nm to 560 nm; the preset wavelength range of the second light is as follows: 330 nm to 380 nm. In other words, when the wavelength range of the first light is between 500 nm and 560 nm, the transition layer 13 is the transition layer 131 in the first state; when the wavelength range of the second light is between 330 nm and 380 nm, the transition layer 13 is the transition layer 132 in the second state.
Further, the intensity of the light emitted from the light source conversion layer 15 is directly proportional to the frequency and amplitude of the form change of the conversion layer 13, the frequency of the height change of the conversion layer 13 along the plane perpendicular to the display surface is the frequency of the conversion layer 13 switching from the first state to the second state, and the amplitude of the height change of the conversion layer 13 along the plane perpendicular to the display surface is the difference value of the height change of the conversion layer 13 along the plane perpendicular to the display surface switching from the first state to the second state; that is, when the intensity of the light emitted from the light source conversion layer 15 is stronger, the more times the conversion layer 13 vibrates, the greater the amount of height variation of the conversion layer 13 along a plane perpendicular to the display surface is, and the more times the display panel 1 generates sound, the greater the sound generated; when the intensity of the light emitted by the light source conversion layer 15 is weaker, the frequency of vibration of the conversion layer 13 is smaller, the amount of height variation of the conversion layer 13 along a plane perpendicular to the display surface is smaller, and the frequency of sound emission of the display panel 1 is smaller, so that the emitted sound is smaller.
It can be understood that the volume adjustment of the display panel 1 adopts the control of the light (emitting the first light or the second light) emitted by the light source conversion layer 15 in the display panel 1 and the wavelength corresponding to the light (the first light changes in the wavelength range corresponding to the first light, or the second light changes in the wavelength range corresponding to the second light), so as to achieve the purpose of controlling the volume of the display panel 1.
Wherein the first light is ultraviolet light and the second light is green light; the transition layer 131 in the first state is the original static transition layer 13, the transition layer 132 in the second state is the transition layer 13 after expansion and contraction, and the height of the transition layer 132 in the second state along the plane perpendicular to the display surface is greater than or less than the height of the transition layer in the first state along the plane perpendicular to the display surface.
It is understood that when the length of the transition layer 13 along the first direction Y is changed from the first length H1 to the second length H2, and the transition layer 13 is changed from the transition layer 131 in the first state to the transition layer 132 in the second state, the transition layer 13 vibrates along the direction opposite to the first direction Y, in other words, the transition layer 13 shrinks, and the height of the transition layer 131 along the plane perpendicular to the display surface in the first state is greater than the height of the transition layer 132 along the plane perpendicular to the display surface in the second state.
When the length of transition layer 13 along first direction Y was changed into by first length H1 when third length H3, transition layer 13 was changed into under the second state by transition layer 131 under the first state during transition layer 132, transition layer 13 was followed the positive direction of first direction Y shakes, in other words, transition layer 13 extension, under the first state transition layer 131 is followed perpendicular to the plane of display surface the height is less than under the second state transition layer 132 is along perpendicular to the plane of display surface the height.
Further, the range of the ratio of the absolute value of the height difference of the conversion layer 13 along the plane perpendicular to the display surface to the height of the conversion layer 13 along the plane perpendicular to the display surface when not illuminated by the light source conversion layer is: 40% to 50%; the absolute value of the height difference of the transition layer 13 along the plane perpendicular to the display surface is the absolute value of the difference between the height of the transition layer 13 along the plane perpendicular to the display surface in the first state and the height of the transition layer 13 along the plane perpendicular to the display surface in the second state.
It can be understood that, when the height of the transition layer 13 along the plane perpendicular to the display surface changes, the factor causing the height of the transition layer 13 along the plane perpendicular to the display surface to change is mainly the change of the length of the transition layer 13 along the first direction Y, and therefore, the absolute value of the volume difference of the transition layer 13 is the absolute value of the length difference of the transition layer 13 along the first direction Y; the absolute value of the difference in the volumes of the transition layers 13 is the absolute value of the difference between the volume of the transition layer 13 in the first state and the volume of the transition layer 13 in the second state, that is, the absolute value of the difference in the lengths of the transition layers 13 in the first direction Y is the absolute value of the difference in the lengths of the transition layers 13 in the first direction Y, the first length H1 of the transition layers 13 in the first direction Y, the second length H2 of the transition layers 13 in the second state, or the third length H3.
Further, the light source conversion layer 15 includes a first light source conversion layer and a second light source conversion layer on a side of the conversion layer 13 away from the display panel main body 11, the first light source conversion layer is configured to emit the first light, and the second light source conversion layer is configured to emit the second light.
It can be understood that when the light source conversion layer 15 emits the first light, the first light source conversion layer is operated, and when the light source conversion layer 15 emits the second light, the second light source conversion layer is operated, and the light source conversion layer 15 is controlled to alternately emit the first light and the second light by controlling the alternate operating states of the first light source conversion layer and the second light source conversion layer.
Further, the display panel 1 further includes a first buffer layer 12 and a second buffer layer 14 respectively disposed at two sides of the transition layer 13, and the first buffer layer 12 and the second buffer layer 14 have the same material and shape; the first buffer layer 12 and the second buffer layer 14 are preferably made of buffer materials with high elasticity; the first buffer layer 12 is disposed between the display panel main body 11 and the conversion layer 13, the second buffer layer 14 is disposed between the conversion layer 13 and the light source conversion layer 15, and the first buffer layer 12 is used for reducing friction of the conversion layer 13 on the surface of the display panel main body 11 and preventing influence on the performance of the display panel main body 11 when the conversion layer 13 vibrates; similarly, the second buffer layer 14 is used to reduce friction of the conversion layer 13 on the surface of the light source conversion layer 15 when the conversion layer 13 vibrates, so as to prevent the performance of the light source conversion layer 15 from being affected.
Fig. 5 is a schematic flow chart of a display panel control method according to an embodiment of the present invention. The display panel is the display panel, and the control method of the display panel comprises the following steps: s10, receiving the sound signal; in particular, the sound signal may be an electrical signal after digital-to-analog conversion, such as an enable signal.
S20, controlling the light source conversion layer 15 to emit the first light or the second light according to the sound signal so that the conversion layer 13 is in the first state or the second state.
It can be understood that, after the light source conversion layer 15 receives the sound signal, the light source conversion layer 15 controls the first light source conversion layer or the second light source conversion layer to operate, and when the first light source conversion layer operates, the light source conversion layer 15 emits the first light, and the conversion layer 13 is in the first state; when the second light source conversion layer is in operation, the light source conversion layer 15 emits the second light, and the conversion layer 13 is in the second state.
Further, referring to fig. 6, a flow chart of a method for manufacturing a display panel according to an embodiment of the present invention is shown. Fig. 7(a) to 7(e) are process flow diagrams of the display panel according to the embodiment of the invention. The invention also provides a manufacturing method of the display panel, which comprises the following steps:
s100, providing a display panel body 11;
referring to fig. 7(a), a first process flow diagram of the display panel according to the embodiment of the present application is shown. The display panel body 11 is provided in the first process flow diagram. The display panel main body 11 is an OLED display panel main body, and further, the display panel main body 11 may be a folding display panel main body or a non-folding display panel main body.
S200, forming a first buffer layer 12 on one side of the display panel body 11;
referring to fig. 7(b), a second process flow diagram of the display panel according to the embodiment of the present application is shown. The second process flow diagram comprises: the display panel main body 11 and the first buffer layer 12. Specifically, the first buffer layer 12 is formed on any side of the display panel main body 11, and on one hand, in order to make external light more incident on the display panel 1 and sufficiently ensure the light transmittance of the display panel 1, the material of the first buffer layer 12 should be selected to be as high as possible in transparency; on the other hand, in order to minimize the influence of the morphological change of the conversion layer 13 on the flatness and other properties of the surface of the display panel main body, the first buffer layer 12 should be formed on the side of the conversion layer 13 as a protective layer by selecting a buffer material having a large elasticity as possible, and therefore, it is necessary to have a certain elasticity and toughness while allowing stable light transmission. Therefore, the first buffer layer 12 includes various implementations, for example, one of a transparent ethylene-polytetrafluoroethylene protective film, a polyvinyl fluoride composite film (TPT film), or a polyethylene terephthalate (PET film), which have superior light transmittance, strength, and toughness to other materials.
S300, forming a conversion layer 13 on one side, away from the display panel main body 11, of the first buffer layer 12 by adopting a transfer printing or coating mode;
referring to fig. 7(c), a third process flow diagram of the display panel according to the embodiment of the present application is shown. The third process flow diagram comprises: the display panel main body 11, the first buffer layer 12, and the transition layer 13.
It should be noted that the first buffer layer 12 is made of a highly elastic buffer material, so as to minimize the influence of the vibration generated by the transition layer 13 on the surface flatness of the display panel main body 11.
S400, depositing a second buffer layer 14 and a light source conversion layer 15 in sequence on the side, away from the display panel main body 11, of the conversion layer 13;
referring to fig. 7(d), a fourth process flow chart of the display panel according to the embodiment of the present application is shown. The fourth process flow diagram comprises: the display panel main body 11, the first buffer layer 12, the transition layer 13, and the second buffer layer 14.
Fig. 7(e) is a fifth process flow chart of the display panel according to the embodiment of the present application. The fifth process flow diagram comprises: the display panel main body 11, the first buffer layer 12, the conversion layer 13, the second buffer layer 14, and the light source conversion layer 15.
The shapes and areas of the second buffer layer 14 and the first buffer layer 12, the materials used, and the lengths of the second buffer layer 14 and the first buffer layer 12 in the first direction Y are all equal.
It can be understood that, the first light and the second light emitted by the light source conversion layer 15 in the display panel 1 are switched, so that the conversion layer 13 is converted from the conversion layer 131 in the first state to the conversion layer 132 in the second state, that is, the conversion layer 13 is changed in a stretching manner, the height of the conversion layer 13 along a plane perpendicular to the display surface changes, and the whole display panel 1 is driven to vibrate, so that the display panel 1 emits sound, and the first buffer layer 12 and the second buffer layer 14 are respectively arranged on two sides of the conversion layer 13, and the first buffer layer 12 and the second buffer layer 14 can play a certain role in buffering and protecting the display panel main body 11 and the light source conversion layer 15, so that the arrangement of the first buffer layer 12 and the second buffer layer 14 can prevent the conversion layer 13 from vibrating the display panel when vibrating The display panel body 11 and the light source conversion layer 15 generate friction, thereby affecting the performance of the display panel 1.
Further, in an embodiment, when the user keeps the state of emitting the first light unchanged by the light source conversion layer 15 in the display panel 1, the transition layer 13 may be returned to the transition layer 131 in the first state from the transition layer 132 in the second state.
It can be understood that, the switching change of the light emitted from the light source conversion layer 15 in the display panel 1 is removed, so that the state of emitting the first light by the light source conversion layer 15 is kept unchanged, and the transition layer 13 is changed from the transition layer 132 in the second state to the transition layer 131 in the first state, that is, the transition layer returns to the original state along the height and shape perpendicular to the plane of the display surface.
According to the manufacturing method of the display panel, the first buffer layer, the conversion layer, the second buffer layer and the light source conversion layer are formed on the display panel main body layer by layer, so that the structure of the display panel is simpler, lighter and thinner under the condition that the normal sound production of the display panel is ensured.
Therefore, the present invention provides a display panel and a control method thereof: first, the present invention provides a display panel, comprising: a display panel main body; the conversion layer is attached to one side of the display panel main body; and a light source conversion layer for emitting the first light and the second light; when the conversion layer is irradiated by the first light, the conversion layer is in a first state, when the conversion layer is irradiated by the second light, the conversion layer is in a second state, and the height of the conversion layer in the first state along a plane where a display surface is located is different from the height of the conversion layer in the second state along a plane where the display surface is located; the state of the conversion layer is driven to change through the change of the light source emitted by the light source conversion layer, so that the display panel can sound, the loudspeaker is replaced, and the miniaturization and the thinning of the display panel are realized; furthermore, according to the display panel provided by the invention, the first buffer layer and the second buffer layer are respectively arranged on two sides of the conversion layer, so that the conversion layer can be prevented from rubbing the display panel main body and the light source conversion layer in the expansion and contraction change process to influence the performance of the display panel; finally, the control method of the display panel provided by the invention can control the light source conversion layer to emit the first light or the second light according to the change of the sound signal, so that the conversion layer is in the first state or the second state, and the display panel can generate sound, and the control method is simple and convenient to operate and higher in practicability.
The display panel and the control method thereof provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising:
a display panel main body;
the conversion layer is attached to one side of the display panel main body; and
a light source conversion layer for emitting first light and second light;
when the conversion layer is irradiated by the second light, the conversion layer is in a second state, and the height of the conversion layer in the first state along a plane where the display surface is located is different from the height of the conversion layer in the second state along the plane where the display surface is located.
2. The display panel of claim 1, wherein the material of the conversion layer comprises an azophenyl polymer.
3. The display panel according to claim 2, wherein the azo-phenyl polymer group includes: c4AzoC11 OH.
4. The display panel of claim 3, wherein the predetermined wavelength range of the first light is: 500 nm to 560 nm; the preset wavelength range of the second light is as follows: 330 nm to 380 nm.
5. The display panel according to claim 1, wherein the light intensity of the first light and/or the second light is proportional to a frequency and a magnitude of a height change of the transition layer along a plane perpendicular to the display surface, the frequency of the height change of the transition layer along the plane perpendicular to the display surface is a frequency at which the transition layer is switched from the first state to the second state, and the magnitude of the height change of the transition layer along the plane perpendicular to the display surface is a difference value at which the height of the transition layer along the plane perpendicular to the display surface is switched from the first state to the second state.
6. The display panel of claim 1, wherein the ratio of the absolute value of the height difference of the conversion layer along the plane perpendicular to the display surface to the height of the conversion layer along the plane perpendicular to the display surface when not illuminated by the light source conversion layer ranges from: 40% to 50%; the absolute value of the height difference of the transition layer along the plane perpendicular to the display surface is the absolute value of the difference between the height of the transition layer along the plane perpendicular to the display surface in the first state and the height of the transition layer along the plane perpendicular to the display surface in the second state.
7. The display panel of claim 1, wherein the light source conversion layer comprises a first light source conversion layer and a second light source conversion layer on a side of the conversion layer away from the display panel body, the first light source conversion layer is configured to emit the first light, and the second light source conversion layer is configured to emit the second light.
8. The display panel of claim 7, further comprising a first buffer layer disposed between the conversion layer and the display panel body, and a second buffer layer disposed between the conversion layer and the light source conversion layer.
9. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
10. A control method of a display panel according to any one of claims 1 to 8, the control method comprising:
receiving a sound signal;
controlling the light source conversion layer to emit the first light or the second light according to the sound signal such that the conversion layer is in the first state or the second state.
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