CN115101570A - OLED display panel and OLED display device - Google Patents
OLED display panel and OLED display device Download PDFInfo
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- CN115101570A CN115101570A CN202210793515.6A CN202210793515A CN115101570A CN 115101570 A CN115101570 A CN 115101570A CN 202210793515 A CN202210793515 A CN 202210793515A CN 115101570 A CN115101570 A CN 115101570A
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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Abstract
The application provides an OLED display panel and an OLED display device; this OLED display panel is through setting up the light control layer, set up the light control layer in one side that luminous functional layer was kept away from on quantum dot layer, and make the light control layer correspond the setting with at least one in red quantum dot layer and the green quantum dot layer, the light control layer includes first electrode layer, second electrode layer and the discoloration layer that is located between first electrode layer and the second electrode layer, the luminousness of discoloration layer under the first state is less than the luminousness under the second state, make when OLED display panel is in non-display state, reduce OLED display panel's luminousness through discoloration layer, avoid external light to shine quantum dot layer reflection of light appearing, and when OLED display panel is in display state, discoloration layer normally passes through the light, make OLED display panel normally show, the luminousness that has avoided the various rete to reduce OLED display panel, the consumption of OLED display panel has been reduced.
Description
Technical Field
The application relates to the technical field of display, in particular to an OLED display panel and an OLED display device.
Background
An OLED (Organic Light-Emitting Diode) display device is widely used due to its advantages of self-Light emission, wide color gamut, low power consumption, flexible display, and the like. Quantum Dot (QD) display technology is widely used due to its advantages of wide color gamut, stable material properties, accurate color control, high purity of red, green and blue colors, etc. In order to improve the display effect of the existing display device, a technology of arranging a quantum dot layer on an OLED device is adopted, so that the visual angle and the color gamut are improved. Specifically, in order to improve the display effect of the QD-OLED display device, and prevent external light from exciting the QD to cause the QD-OLED display device to show a yellow reflecting state when not displaying, the conventional QD-OLED display device can set a circular polarizer on one side close to the external light, and set a color film layer on a quantum dot layer to filter external environment light, thereby reducing the influence of the external light on the QD-OLED, but the design can cause the weakening of the light intensity of the emergent light of the QD-OLED, and the power consumption of the QD-OLED is improved.
Therefore, the existing QD-OLED display device has the technical problem that the power consumption is high due to the fact that a color film layer is arranged to filter light.
Disclosure of Invention
The embodiment of the application provides an OLED display panel and an OLED display device, which are used for relieving the technical problem that the power consumption is high due to the fact that a color film layer is arranged on an existing QD-OLED display device to filter light.
The embodiment of the present application provides an OLED display panel, which includes:
a substrate;
the driving circuit layer is arranged on one side of the substrate;
the light-emitting functional layer is arranged on one side, far away from the substrate, of the driving circuit layer;
the quantum dot layer is arranged on one side of the light-emitting function layer, which is far away from the drive circuit layer, and at least comprises a red quantum dot layer and a green quantum dot layer;
wherein, OLED display panel still includes the optical control layer, the optical control layer includes first electrode layer, second electrode layer and is located first electrode layer with discoloring layer between the second electrode layer, the luminousness of discoloring layer under the first state is less than luminousness under the second state, the optical control layer set up in the quantum dot layer is kept away from one side of luminous functional layer, just the optical control layer with red quantum dot layer with at least one in the green quantum dot layer corresponds the setting.
In some embodiments, the OLED display panel further includes a black matrix layer, the quantum dot layer is disposed between the black matrix layer at intervals, the light control layer is disposed between the black matrix layer, and a sum of a thickness of the light control layer and a thickness of the quantum dot layer is greater than or equal to a thickness of the black matrix layer.
In some embodiments, the light emitting function layer includes a light emitting material layer including a blue light emitting material, and the OLED display panel includes a plurality of pixel units including a red quantum dot layer, a green quantum dot layer, and a substrate layer.
In some embodiments, the light control layer includes a first light control layer disposed on a side of the red quantum dot layer away from the light emitting functional layer and a second light control layer disposed on a side of the green quantum dot layer away from the light emitting functional layer.
In some embodiments, the light emitting function layer includes a light emitting material layer including a white light emitting material, and the OLED display panel includes a plurality of pixel units including a red quantum dot layer, a green quantum dot layer, and a blue quantum dot layer.
In some embodiments, the optical control layer comprises a third optical control layer disposed on a side of the red quantum dot layer away from the light-emitting functional layer, a fourth optical control layer disposed on a side of the green quantum dot layer away from the light-emitting functional layer, and a fifth optical control layer disposed on a side of the blue quantum dot layer away from the light-emitting functional layer.
In some embodiments, the first electrode layer and the color changing layer are disposed between the black matrix layers, and the second electrode layer is disposed on a side of the black matrix layers away from the light emitting function layer.
In some embodiments, the OLED display panel further includes a black matrix layer, the quantum dot layer is disposed between the black matrix layers, and the light control layer is disposed on a side of the black matrix layer away from the light emitting function layer.
In some embodiments, the material of the light control layer comprises one of a mixture of a viologen-based material and a polymer material and tungsten oxide.
Meanwhile, an embodiment of the present application provides an OLED display device, which includes the OLED display panel and the driving chip as described in any of the above embodiments.
Has the beneficial effects that: the application provides an OLED display panel and an OLED display device; this OLED display panel includes the substrate, the drive circuit layer, luminous functional layer and quantum dot layer, the drive circuit layer sets up in substrate one side, luminous functional layer sets up in the one side that the substrate was kept away from on the drive circuit layer, the quantum dot layer sets up in the one side that the drive circuit layer was kept away from on the luminous functional layer, the quantum dot layer includes red quantum dot layer and green quantum dot layer at least, wherein, display panel still includes the light control layer, the light control layer includes first electrode layer, second electrode layer and the discoloration layer that is located between first electrode layer and the second electrode layer, the luminousness of discoloration layer under the first state is less than the luminousness under the second state, the light control layer sets up in the one side that luminous functional layer was kept away from on the quantum dot layer, and at least one of light control layer and red quantum dot layer and green quantum dot layer corresponds the setting. This application is through setting up the light control layer, set up the light control layer in one side that luminous functional layer was kept away from on quantum dot layer, and make the light control layer correspond the setting with at least one in red quantum dot layer and the green quantum dot layer, the light control layer includes first electrode layer, second electrode layer and the discoloration layer that is located between first electrode layer and the second electrode layer, the luminousness of discoloration layer under the first state is less than the luminousness under the second state, make when OLED display panel is in non-display state, through the luminousness that discoloration layer reduced OLED display panel, avoid external light to shine the reflection of light to appear on quantum dot layer, and when OLED display panel is in display state, discoloration layer normally passes through, make OLED display panel normally show, the luminousness that has avoided the various rete to reduce OLED display panel, OLED display panel's consumption has been reduced.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a first schematic view of an OLED display panel according to an embodiment of the present disclosure.
Fig. 2 is a second schematic diagram of an OLED display panel according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, 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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. 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 to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
The embodiment of the application aims at the technical problem that the existing QD-OLED display device is high in power consumption caused by the fact that a color film layer is arranged to filter light, and provides an OLED display panel and an OLED display device for relieving the technical problem.
As shown in fig. 1, an embodiment of the present application provides an OLED display panel, where the OLED display panel 1 includes:
a substrate 11;
a driver circuit layer 12 provided on one side of the substrate 11;
a light emitting function layer 13 disposed on a side of the driving circuit layer 12 away from the substrate 11;
a quantum dot layer 15 disposed on a side of the light-emitting functional layer 13 away from the driving circuit layer 12, wherein the quantum dot layer 15 includes at least a red quantum dot layer 151 and a green quantum dot layer 152;
wherein, the OLED display panel 1 further includes a light control layer 16, the light control layer 16 includes a first electrode layer 161, a second electrode layer 163 and a color change layer 162 located between the first electrode layer 161 and the second electrode layer 163, a light transmittance of the color change layer 162 in a first state is smaller than a light transmittance in a second state, the light control layer 16 is disposed on one side of the quantum dot layer 15 away from the light emitting functional layer 13, and the light control layer 16 corresponds to at least one of the red quantum dot layer 151 and the green quantum dot layer 152.
The embodiment of the application provides an OLED display panel, which is characterized in that a light control layer is arranged on one side of a quantum dot layer far away from a light-emitting function layer, and the light control layer is arranged corresponding to at least one of the red quantum dot layer and the green quantum dot layer, the light control layer comprises a first electrode layer, a second electrode layer and a color-changing layer positioned between the first electrode layer and the second electrode layer, the light transmittance of the color-changing layer in a first state is smaller than that in a second state, so that when the OLED display panel is in a non-display state, the light transmittance of the OLED display panel is reduced through the color-changing layer, the phenomenon that external light irradiates the quantum dot layer to reflect light is avoided, when the OLED display panel is in a display state, the color changing layer is normally transparent, so that the OLED display panel normally displays, the color film layer is prevented from reducing the light transmittance of the OLED display panel, and the power consumption of the OLED display panel is reduced.
The first state is a state in which the OLED display panel is not displaying, and the second state is a state in which the OLED display panel is displaying.
It should be noted that the light transmittance of the color-changing layer in the first state and the second state can be changed by changing the voltages of the first electrode layer and the second electrode layer, for example, when the voltage difference between the first electrode layer and the second electrode layer of the color-changing layer is greater than a certain value, the color-changing layer changes from a transparent state to an opaque state, or the color-changing layer changes from a low light transmittance state to a high light transmittance state; or when the voltage difference between the first electrode layer and the second electrode layer is larger than a certain value, the color changing layer is changed into a transparent state from an opaque state, or the color changing layer is changed into a high light transmittance state from a low light transmittance state. The luminousness of OLED display panel when showing and not showing can be changed through the change of the luminousness of discoloration layer then, thereby can be when OLED display panel is in the non-display state, reduce OLED display panel's luminousness through discoloration layer, avoid external light to shine quantum dot layer reflection of light appearing, and when OLED display panel is in the display state, discoloration layer normally passes through the printing opacity, make OLED display panel normally show, the luminousness that has avoided the color film layer to reduce OLED display panel, the consumption of OLED display panel has been reduced.
The technical problem that the thickness of an OLED display panel is large due to the fact that the light control layer is arranged on the black matrix layer is solved. In one embodiment, as shown in fig. 1, the OLED display panel 1 further includes a black matrix layer 14, the quantum dot layer 15 is disposed between the black matrix layers 14 at intervals, the optical control layer 16 is disposed between the black matrix layers 14, and the sum of the thickness of the optical control layer 16 and the thickness of the quantum dot layer 15 is greater than or equal to the thickness of the black matrix layer 14. The sum of the thickness of the light control layer and the thickness of the quantum dot layer is larger than or equal to the thickness of the black matrix layer, so that at least part of the light control layer is positioned in the height range of the black matrix layer, the thickness of the OLED display panel is reduced, the thickness of the OLED display panel is not increased, and the thickness of the OLED display panel is smaller.
Specifically, the light control layer is arranged between the black matrix layers, the sum of the thickness of the light control layer and the thickness of the quantum dot layer is equal to the thickness of the black matrix layers, when the light control layer and the quantum dot layer are arranged, the light control layer and the quantum dot layer can fill and level up gaps between the black matrix layers, the thickness of the OLED display panel is prevented from being increased, and the black matrix layer and the light control layer form a flat surface, so that the subsequent film layer can be conveniently prepared.
It is specific, make the light control layer set up between the black matrix layer, the thickness sum on thickness and the quantum dot layer on light control layer is greater than the thickness on black matrix layer, then when setting up the light control layer, can make partial light control layer be located between the black matrix layer, reduce OLED display panel thickness, and simultaneously, in order to make the quantum dot layer can have better light conversion effect, guarantee the thickness on quantum dot layer, consequently, make partial light control layer be located outside the black matrix layer, thereby make the quantum dot layer can convert light, the light control layer can be controlled OLED display panel's printing opacity effect.
The above embodiment has been described in detail by taking an example in which the sum of the thickness of the optical control layer and the thickness of the quantum dot layer is greater than or equal to the thickness of the black matrix layer, but the embodiment of the present application is not limited thereto, and for example, the thickness of the optical control layer and the thickness of the quantum dot layer may be smaller than the thickness of the black matrix layer.
In one embodiment, as shown in fig. 2, the light emitting function layer 13 includes a light emitting material layer (e.g., a first light emitting material layer 232) including a blue light emitting material, and the OLED display panel 1 includes a plurality of pixel units including a red quantum dot layer 151, a green quantum dot layer 152, and a substrate layer 153. Through adopting blue luminescent material as the material of luminescent material layer, then can make the luminance of blue light higher, and quantum dot when absorbing shortwave emission long wave, blue luminescent material arouses that the quantum dot sends red light and green glow's effect better for the luminance of ruddiness and green glow is sufficient, and the decay of blue light is slower relatively, improves OLED display device's life-span.
Specifically, the red quantum dot layer can be formed by red quantum dots and a substrate wrapping the red quantum dots, the green quantum dot layer can be formed by green quantum dots and a substrate wrapping the green quantum dots, and then the substrate and the quantum dots can be stably arranged between the black matrix layers. For the blue light-emitting pixel, the light-emitting material layer is a blue light-emitting material, and quantum dot excitation is not needed, so that in order to ensure the uniformity of the quantum dot layer, the substrate layer can be arranged in the region corresponding to the blue light-emitting pixel, and the space of the region corresponding to the blue light-emitting pixel is filled with the substrate, so that the uniformity of the quantum dot layer is ensured, and the formation of a subsequent film layer is facilitated.
Specifically, as for the material of the base material and the base material layer, a transparent material may be selected.
Specifically, as shown in fig. 2, the light emitting function layer 13 includes a pixel electrode layer 131, a first light emitting device layer 132, a second light emitting device layer 133, and a common electrode layer 134, the first light emitting device layer 132 includes a first hole transport layer 231, a first light emitting material layer 232, a first electron transport layer 233, and a first electron injection layer 234, and the second light emitting device layer 133 includes a second hole transport layer 235, a second light emitting material layer 235, a second electron transport layer 237, and a second electron injection layer 238. Through adopting two light emitting device layers for the luminance of the light that sends is sufficient, thereby makes OLED display panel's luminance higher, avoids OLED display panel's luminance not enough to lead to showing badly.
Specifically, the first light emitting material layer includes a blue light emitting material, and the second light emitting material layer includes a blue light emitting material.
In one embodiment, the optical control layer comprises a first optical control layer disposed on a side of the red quantum dot layer away from the light-emitting functional layer and a second optical control layer disposed on a side of the green quantum dot layer away from the light-emitting functional layer. The first light control layer is arranged on one side, away from the light emitting function layer, of the red quantum dot layer, so that the light transmittance of the first light control layer can be reduced when the OLED display panel is in a non-display state, and the red quantum dots are prevented from being excited to emit light when being irradiated by external light; the second light control layer is arranged on one side, away from the light emitting function layer, of the green quantum dot layer, the light transmittance of the second light control layer can be reduced when the OLED display panel is in a non-display state, the phenomenon that external light irradiates the green quantum dots to excite the green quantum dots to emit light is avoided, reflected light of the OLED display panel in the non-display state can be reduced or even eliminated, and the total black display effect of the OLED display panel is improved.
In one embodiment, the light emitting function layer includes a light emitting material layer including a white light emitting material, and the OLED display panel includes a plurality of pixel units including a red quantum dot layer, a green quantum dot layer, and a blue quantum dot layer. For an OLED display panel adopting a white light luminescent material as a luminescent material layer, the white light can be converted by arranging a red quantum dot layer, a green quantum dot layer and a blue quantum dot layer to emit red light, green light and blue light; simultaneously, through setting up the light-operated layer on luminous functional layer for when OLED display panel is in non-display state, reduce OLED display panel's luminousness through the discoloration layer, avoid external light to shine quantum dot layer reflection of light to appear, and when OLED display panel is in the display state, the discoloration layer normally passes through light, makes OLED display panel normally show, has avoided the luminousness that various rete reduced OLED display panel, has reduced OLED display panel's consumption.
In one embodiment, the light control layer includes a third light control layer, a fourth light control layer and a fifth light control layer, the third light control layer is disposed on a side of the red quantum dot layer away from the light emitting functional layer, the fourth light control layer is disposed on a side of the green quantum dot layer away from the light emitting functional layer, and the fifth light control layer is disposed on a side of the blue quantum dot layer away from the light emitting functional layer. The third light control layer is arranged on one side, away from the light emitting function layer, of the red quantum dot layer, so that the light transmittance of the third light control layer can be reduced when the OLED display panel is in a non-display state, and the phenomenon that external light irradiates the red quantum dots to excite the red quantum dots to emit light is avoided; the fourth optical control layer is arranged on one side, away from the light-emitting function layer, of the green quantum dot layer, so that the light transmittance of the fourth optical control layer can be reduced when the OLED display panel is in a non-display state, and external light is prevented from irradiating the green quantum dots to excite the green quantum dots to emit light; the fifth light control layer is arranged on one side, far away from the light emitting function layer, of the blue quantum dot layer, so that the light transmittance of the fifth light control layer can be reduced when the OLED display panel is in a non-display state, and the blue quantum dots are prevented from being excited to emit light when being irradiated by external light; and further, the reflection light of the OLED display panel in a non-display state can be reduced or even eliminated, and the full black display effect of the OLED display panel is improved.
In one embodiment, the first electrode layer and the color changing layer are disposed between the black matrix layers, and the second electrode layer is disposed on a side of the black matrix layers away from the light emitting function layer. Through setting up first electrode layer and discoloration layer between the black matrix layer, set up the light control layer outside the black matrix layer in direct relatively, reduced OLED display panel thickness, and the second electrode layer sets up the one side of keeping away from luminous functional layer at the black matrix layer, makes the quantum dot layer can keep certain thickness, and the quantity of quantum dot can satisfy the demand, makes OLED display panel's luminance sufficient.
Specifically, the above embodiments have been described in detail by taking an example in which the first electrode layer and the discoloring layer are provided between the black matrix layers, and the second electrode layer is provided on the side of the black matrix layer away from the light-emitting functional layer. However, the embodiment of the present application is not limited to this, and for example, the first electrode layer may be located between the black matrix layers, and the color changing layer and the second electrode layer may be disposed on a side of the black matrix layer away from the light emitting function layer.
The method aims at the technical problems that the process is complex and the performance of a quantum dot layer is possibly influenced when the light control layer is arranged between the black matrix layers. In one embodiment, the OLED display panel further includes a black matrix layer, the quantum dot layer is disposed between the black matrix layers, and the light control layer is disposed on a side of the black matrix layer away from the light emitting function layer. The light control layer is arranged on one side, away from the light emitting function layer, of the black matrix layer, so that the light control layer can be directly tiled on the black matrix layer without etching, and the process complexity is reduced; meanwhile, the quantum dot layers are arranged between the black matrix layers, so that the quantity of the quantum dot layers can meet requirements, light emitted by the luminescent materials can be fully converted, and the brightness of the OLED display panel is sufficient.
In one embodiment, the light control layer has a light transmission of less than 5% in the first state and greater than 60% in the second state. By enabling the light transmittance of the light control layer to be less than 5% in the first state, when the OLED display panel is in a non-display state, the OLED display panel is small in light transmittance, less external light enters the OLED display panel, less quantum dots are excited, and reflection caused by the fact that external light irradiates the quantum dot layer is avoided; meanwhile, when the OLED display panel is in the second state, the light transmittance of the light control layer is larger than 60%, the light transmittance of the OLED display panel is high, when the OLED display panel is in the display state, the color changing layer normally transmits light, the OLED display panel normally displays the light, the light transmittance of the OLED display panel is prevented from being reduced by the color film layer, and the power consumption of the OLED display panel is reduced.
Specifically, when the first state, the luminousness of light-operated layer is less than 5%, and when the second state, the luminousness of light-operated layer is greater than 90%, more specifically, when the second state, the luminousness of light-operated layer is greater than 95%, and when making the second state, the luminousness of light-operated layer is great, avoids light-operated layer to influence the luminance that OLED display panel normally shows, avoids increasing OLED display panel's consumption.
In one embodiment, the material of the light control layer comprises one of a mixture of a viologen-based material and a polymer material and tungsten oxide. Through adopting viologen class material and polymer material or tungsten oxide as the material of discoloration layer, then can be under the control of first electrode and second electrode, make discoloration layer discolour, change the luminousness of discoloration layer, thereby change OLED display panel's luminousness, make when OLED display panel is in non-display state, reduce OLED display panel's luminousness through discoloration layer, it reflects light to appear in quantum dot layer to avoid external light to shine, and when OLED display panel is in display state, discoloration layer normally passes through, make OLED display panel normally show, the luminousness that the various rete reduced OLED display panel has been avoided, OLED display panel's consumption has been reduced.
In one embodiment, as shown in fig. 1, the OLED display panel 1 further includes a cover plate 17.
Meanwhile, the embodiment of the application provides an OLED display device, which includes the OLED display panel and the driving chip as in any one of the above embodiments.
According to the above embodiment:
the embodiment of the application provides an OLED display panel and an OLED display device; this OLED display panel includes the substrate, the drive circuit layer, luminous functional layer and quantum dot layer, the drive circuit layer sets up in substrate one side, luminous functional layer sets up in the one side that the substrate was kept away from on the drive circuit layer, the quantum dot layer sets up in the one side that the drive circuit layer was kept away from on the luminous functional layer, the quantum dot layer includes red quantum dot layer and green quantum dot layer at least, wherein, display panel still includes the light control layer, the light control layer includes first electrode layer, second electrode layer and the discoloration layer that is located between first electrode layer and the second electrode layer, the luminousness of discoloration layer under the first state is less than the luminousness under the second state, the light control layer sets up in the one side that luminous functional layer was kept away from on the quantum dot layer, and at least one of light control layer and red quantum dot layer and green quantum dot layer corresponds the setting. This application is through setting up the light control layer, set up the light control layer in one side that luminous functional layer was kept away from on quantum dot layer, and make the light control layer correspond the setting with at least one in red quantum dot layer and the green quantum dot layer, the light control layer includes first electrode layer, second electrode layer and the discoloration layer that is located between first electrode layer and the second electrode layer, the luminousness of discoloration layer under the first state is less than the luminousness under the second state, make when OLED display panel is in non-display state, reduce OLED display panel's luminousness through discoloration layer, avoid external light to shine quantum dot layer reflection of light to appear, and when OLED display panel is in display state, discoloration layer normal light transmission, make OLED display panel normally show, the luminousness of having avoided the various rete to reduce OLED display panel, the consumption of OLED display panel has been reduced.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The OLED display panel and the OLED display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the technical solutions and core ideas of the present application; 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; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. An OLED display panel, comprising:
a substrate;
the driving circuit layer is arranged on one side of the substrate;
the light-emitting functional layer is arranged on one side, far away from the substrate, of the driving circuit layer;
the quantum dot layer is arranged on one side of the light-emitting function layer, which is far away from the drive circuit layer, and at least comprises a red quantum dot layer and a green quantum dot layer;
wherein, OLED display panel still includes the optical control layer, the optical control layer includes first electrode layer, second electrode layer and is located first electrode layer with discoloring layer between the second electrode layer, the luminousness of discoloring layer under the first state is less than luminousness under the second state, the optical control layer set up in the quantum dot layer is kept away from one side of luminous functional layer, just the optical control layer with red quantum dot layer with at least one in the green quantum dot layer corresponds the setting.
2. The OLED display panel of claim 1, further comprising a black matrix layer, wherein the quantum dot layer is disposed between the black matrix layer at intervals, wherein the light control layer is disposed between the black matrix layer, and wherein a sum of a thickness of the light control layer and a thickness of the quantum dot layer is greater than or equal to a thickness of the black matrix layer.
3. The OLED display panel of claim 2, wherein the light emitting functional layer includes a light emitting material layer including a blue light emitting material, the OLED display panel including a plurality of pixel units including a red quantum dot layer, a green quantum dot layer, and a substrate layer.
4. The OLED display panel of claim 3, wherein the optical control layer comprises a first optical control layer disposed on a side of the red quantum dot layer remote from the light-emitting functional layer and a second optical control layer disposed on a side of the green quantum dot layer remote from the light-emitting functional layer.
5. The OLED display panel of claim 2, wherein the light emitting functional layer comprises a layer of light emitting material including a white light emitting material, the OLED display panel including a plurality of pixel cells including a red quantum dot layer, a green quantum dot layer, and a blue quantum dot layer.
6. The OLED display panel of claim 5, wherein the optical control layers include a third optical control layer disposed on a side of the red quantum dot layer remote from the light-emitting functional layer, a fourth optical control layer disposed on a side of the green quantum dot layer remote from the light-emitting functional layer, and a fifth optical control layer disposed on a side of the blue quantum dot layer remote from the light-emitting functional layer.
7. The OLED display panel according to claim 2, wherein the first electrode layer and the color-changing layer are disposed between the black matrix layers, and the second electrode layer is disposed on a side of the black matrix layers away from the light-emitting function layer.
8. The OLED display panel of claim 1, further comprising a black matrix layer, the quantum dot layer disposed between the black matrix layers, the light control layer disposed on a side of the black matrix layer away from the light-emitting functional layer.
9. The OLED display panel of claim 1, wherein the material of the light control layer includes one of a mixture of a viologen-based material and a polymer material and tungsten oxide.
10. An OLED display device comprising the OLED display panel according to any one of claims 1 to 9 and a driving chip.
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| CN202210793515.6A CN115101570A (en) | 2022-07-05 | 2022-07-05 | OLED display panel and OLED display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115951525A (en) * | 2023-03-02 | 2023-04-11 | 惠科股份有限公司 | Display panel and display device |
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| CN115951525A (en) * | 2023-03-02 | 2023-04-11 | 惠科股份有限公司 | Display panel and display device |
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