CN113436543B - Display device - Google Patents
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- CN113436543B CN113436543B CN202110737792.0A CN202110737792A CN113436543B CN 113436543 B CN113436543 B CN 113436543B CN 202110737792 A CN202110737792 A CN 202110737792A CN 113436543 B CN113436543 B CN 113436543B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133567—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the back side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
Abstract
The invention discloses a display device, comprising: the liquid crystal display panel comprises a first light-emitting surface, the organic light-emitting display panel, a rotating structure and a reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface, and in a first display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked; and in the second display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked. The technical scheme provided by the embodiment of the invention can realize a multifunctional double-sided display device and can be suitable for the display requirements of multiple occasions.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
The display device in the prior art generally has only a single-side single function, so that the application scene is limited, and the display device has double-side multifunctional display requirements in special industries such as large building outer wall advertising boards, high-rise lighting and lighting display devices and the like. Such as externally used displays, internally used illumination/displays, in the automotive industry, devices for switching between transparent, display, mirror states, etc.
For the display device with double-sided display, different screens can be displayed on the front side and the back side respectively, for example, the front side is a liquid crystal display, the back side is an electronic ink screen display, the display function is single, and the use effect is poor.
Disclosure of Invention
The embodiment of the invention provides a display device, which is used for realizing a multifunctional double-sided display device and can meet the display requirements of multiple occasions.
An embodiment of the present invention provides a display device, including:
the display device comprises a liquid crystal display panel, an organic light-emitting display panel, a reflecting layer and a rotating structure; the liquid crystal display panel comprises a first light-emitting surface; the organic light-emitting display panel, the rotating structure and the reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface;
in a first display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked;
in a second display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked.
According to the technical scheme provided by the embodiment of the invention, the liquid crystal display panel, the organic light-emitting display panel, the reflecting layer and the rotating structure are arranged, the liquid crystal display panel comprises a first light-emitting surface, the organic light-emitting display panel, the rotating structure and the reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface, and in the first display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked; and in the second display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked. Compared with the prior art, the liquid crystal display panel, the organic light emitting display panel, the reflecting layer and the rotating structure are combined into the multifunctional double-sided display, the switching of various display states is realized through the rotating structure, and the multi-field application of the display device is realized.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a display device according to an embodiment of the invention;
fig. 3 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view illustrating another display device according to an embodiment of the invention;
fig. 5 is a schematic cross-sectional view illustrating a display device according to another embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of an lcd panel according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view illustrating an organic light emitting display panel according to an embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of another display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
An embodiment of the present invention provides a display device, including:
the display device comprises a liquid crystal display panel, an organic light-emitting display panel, a reflecting layer and a rotating structure; the liquid crystal display panel comprises a first light-emitting surface; the organic light-emitting display panel, the rotating structure and the reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface;
in the first display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked;
in the second display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked.
According to the technical scheme provided by the embodiment of the invention, the liquid crystal display panel, the organic light-emitting display panel, the reflecting layer and the rotating structure are arranged in the display device, the liquid crystal display panel comprises a first light-emitting surface, the organic light-emitting display panel, the rotating structure and the reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface, and in a first display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked; and in the second display state, the rotating structure drives the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked. In the embodiment, the liquid crystal display panel, the organic light emitting display panel, the reflecting layer and the rotating structure are combined into the multifunctional double-sided display device, and the rotating structure is used for switching various display states, so that the multi-field application of the display device is realized.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional structural diagram of a display device according to an embodiment of the present invention, and fig. 3 is a schematic cross-sectional structural diagram of another display device according to an embodiment of the present invention. Referring to fig. 1, fig. 2, and fig. 3, a display device according to an embodiment of the present invention includes: a liquid crystal display panel 101, an organic light emitting display panel 102, a reflective layer 103, and a rotation structure 104; the liquid crystal display panel 101 includes a first light emitting surface; the organic light emitting display panel 102, the rotating structure 104 and the reflective layer 103 are located on one side of the liquid crystal display panel 101 away from the first light emitting surface; in the first display state, the rotating structure 104 is used for driving the organic light emitting display panel 102 and the reflective layer 103 to rotate until the liquid crystal display panel 101, the organic light emitting display panel 102 and the reflective layer 103 are sequentially stacked; in the second display state, the rotating structure 104 is used to drive the organic light emitting display panel 102 and the reflective layer 103 to rotate until the liquid crystal display panel 101, the reflective layer 103 and the organic light emitting display panel 102 are sequentially stacked.
The liquid crystal display panel 101 is used as a display, and at least includes a Thin Film Transistor (TFT) substrate, a liquid crystal layer, and a Color Filter (CF) substrate, where the TFT can control each individual pixel on a screen and is used as a switch of the liquid crystal display, the Color Filter has three primary Color resistors arranged in order, and light incident from a backlight source through the liquid crystal layer can be converted into monochromatic light having the same Color as the Color resistors through the Color filters. The liquid crystal display panel 101 has advantages of small size, light weight, low radiation, and low power consumption. The liquid crystal display panel 101 includes a first light emitting surface, and a specific source of the backlight source may be, for example, a natural light source reflected by a backlight or a reflector.
The organic light emitting display panel 102 emits and displays light using organic electric self light emitting diodes. The organic light emitting display technology is composed of a very thin organic light emitting material layer and a glass substrate, and the type of the organic light emitting material is different according to the use of the organic light emitting material, but the organic light emitting display technology is not limited to this, and for example, the organic light emitting display panel 102 may be a small molecule organic light emitting display panel 102 using an organic dye, a pigment, or the like as a light emitting material, or a polymer organic light emitting display panel 102 using a conjugated polymer as a light emitting material. The organic light emitting display panel 102 has advantages of self-luminescence, no need of a backlight, thin thickness, wide viewing angle, low energy consumption, applicability to a flexible panel, excellent anti-seismic performance, and the like.
The reflective layer 103 is used to reflect an external natural light source (ambient light) to form a mirror surface state, or may serve as a backlight of the liquid crystal display panel 101.
The rotating structure 104 is used for driving rotation, and may be a belt structure, for example, and the thickness of the rotating structure 104 is not limited in the embodiments of the present invention, and is preferably as thin as possible. The specific number of the rotating structures 104 is not limited in the embodiments of the present invention, and for example, the number of the rotating structures may be multiple, so as to ensure that the organic light emitting display panel 102 and the reflective layer 103 are uniformly stressed during the rotation process.
Referring to fig. 2 and 3, the display device includes a liquid crystal display panel 101, an organic light emitting display panel 102, a reflective layer 103, and a rotating structure 104, where the liquid crystal display panel 101 includes a first light emitting surface, the liquid crystal display panel 101 performs display through the first light emitting surface, and the organic light emitting display panel 102, the rotating structure 104, and the reflective layer 103 are disposed on a side of the liquid crystal display panel 101 away from the first light emitting surface, where a relative position of the reflective layer 103 and the organic light emitting display panel 102 is fixed, and when the rotating structure 104 rotates, the reflective layer 103 and the organic light emitting display panel 102 are driven to rotate simultaneously, and as shown in fig. 1 to 3, the reflective layer 103 and the organic light emitting display panel 102 may be connected to form a whole and disposed around the rotating structure 104 for a circle. When the rotation structure 104 drives the organic light emitting display panel 102 and the reflection layer 103 to rotate, the stacking position relationship among the liquid crystal display panel 101, the organic light emitting display panel 102, the reflection layer 103 and the rotation structure 104 can be changed, and different display states of the display device can be realized. As shown in fig. 2, the organic light emitting display panel 102 can be used as a backlight source of the liquid crystal display panel 101, and the organic light emitting display panel 102 can be turned on and off a single pixel light source, which has the advantage of low power consumption, so that the liquid crystal display panel 101 achieves an effect of low power consumption and can achieve high-definition display and local dimming display. The organic light emitting display panel 102 is used as a backlight, and the display state of the image display is performed through the liquid crystal display panel 101, so that the problem of high power consumption can be avoided, and the problems of sneaking into light and dimming of the organic light emitting display due to a low-brightness condition can be avoided.
Meanwhile, the reflective layer 103 can be used as a display device for self-photographing or photo-taking, thereby realizing the effects of power saving and reality. When the rotating structure 104 drives the organic light-emitting display panel 102 and the reflecting layer 103 to rotate until the liquid crystal display panel 101, and when the reflecting layer 103 and the organic light-emitting display panel 102 are sequentially stacked, the second display state is achieved, for the display device, one side performs display of the liquid crystal display panel 101, and one side performs the organic light-emitting display panel 102, the organic light-emitting display panel 102 can be controlled to perform video or software interface display in the embodiment, the liquid crystal display panel 101 is controlled to perform screen protection display, and the display device is used for displaying basic information such as time, temperature and weather, and when a user watches a video, if information such as date and weather needs to be acquired, the current video does not need to be quitted, and only the other side of the display device needs to be turned over to watch the current video. In this embodiment, the stacking order of the liquid crystal display panel 101, the reflective layer 103 and the organic light emitting display panel 102 is adjusted by the rotating structure 104, so that various display devices can be implemented, multi-field applications of the display devices can be realized, and user experience can be improved.
Optionally, in the first display state, the organic light emitting display panel 102 may be reused as a backlight source of the liquid crystal display panel 101; the reflective layer 103 may be in a mirror state.
Specifically, in the first display state, the organic light emitting display panel 102 may serve as a backlight of the liquid crystal display panel 101, thereby realizing high-definition display of the liquid crystal display panel 101. Local dimming can be performed through the organic light emitting display panel 102, for example, for a mobile phone and a computer screen, a menu bar or a task bar is generally black or gray, where the requirement for light brightness is low, and the brightness of the organic light emitting display panel 102 in the area can be reduced. At this moment, the reflecting layer 103 is in a mirror surface state, and can be used as a display device for self-photographing or photographing, so that the user can conveniently adjust the photographing posture, and the user experience is improved. The liquid crystal display panel 101 and the organic light emitting display panel 102 are combined, so that local dimming is realized, meanwhile, multifunctional double-sided display is realized, and multi-field application is guaranteed. For example, in special industries such as large building exterior wall advertising boards, high-rise lighting display devices, and the like, there is a demand for dual-sided and multifunctional display, for example, the display device provided by the present embodiment can be used as an external display and as an internal mirror, and the display device is adjusted to the first display state.
Optionally, in the second display state, the reflective layer 103 may implement reflective display of the liquid crystal display panel 101; the organic light emitting display panel 102 may display alone.
Specifically, in the second display state, the reflective layer 103 implements reflective display of the liquid crystal display panel 101, and may be applied to a scene with low display requirement, for example, a screen saver or an electronic finger-like eye protection display. The organic light emitting display panel 102 displays independently without a backlight, and has a wide viewing angle range. Therefore, multifunctional double-sided display is achieved, multi-application is guaranteed, exemplarily, if the display device is used for reading through the display device, the display device provided by the embodiment can be applied, if the display device is a mobile phone, a user can read characters through the reflective liquid crystal display panel 101, the light source of the reflective liquid crystal display panel 101 is natural light, protection of eyes of the user is facilitated, and meanwhile, the organic light emitting display panel 102 performs normal display.
Fig. 4 is a schematic cross-sectional structure diagram of another display device according to an embodiment of the present invention, and as shown in fig. 4, the display device according to the embodiment of the present invention may further include: a cover sheet layer 105; the organic light emitting display panel 102, the rotation structure 104, and the reflective layer 103 are positioned between the liquid crystal display panel 101 and the cover plate layer 105.
Specifically, as shown in fig. 4, the cover plate layer 105 and the liquid crystal display panel 101 may form a cavity around the organic light emitting display panel 102, the rotation structure 104, and the reflective layer 103. As shown in fig. 4, the cover plate layer 105 may be spliced with the color film substrate of the liquid crystal display panel 101 by an adhesive such as a transparent adhesive. Since the color filter substrate of the liquid crystal display panel 101 itself is made of glass, the cover plate layer 105 is only bonded to the color filter substrate of the liquid crystal display panel 101, and the cover plate layer 105 does not cover the liquid crystal display panel 101. Alternatively, as shown in fig. 5, fig. 5 is a schematic cross-sectional structural view of another display device according to an embodiment of the present invention, the cover plate layer 105 may cover the first light emitting surface of the liquid crystal display panel 101, so as to further enhance the protection of the liquid crystal display panel 101. It should be noted that, as shown in fig. 4 and 5, the display device may further include a transparent structure 106, where the transparent structure 106 is located inside the cover plate layer 105 and may be covered by the cover plate layer 105, and the transparent structure 106 may balance the step difference between the liquid crystal display panel 101 and the cover plate layer 105 and support and protect the cover plate layer 105.
The cover plate layer 105 is a protective cover plate in a display device, and is formed by compounding a rigid glass substrate or a resin substrate with a functional layer. For example, the material may be transparent Polyimide film (CPI), ultra-Thin Glass (UTG) or a combination of CPI and UTG, where CPI has good bending properties but soft texture and is not scratch-resistant, and UTG has good hardness and is scratch-resistant. Preferably, the cover plate layer 105 is a combination material of CPI and UTG, which can completely wrap the flexible organic light emitting display panel 102 and protect the organic light emitting display panel 102.
With continued reference to fig. 2 or 3, the rotating structure 104 may optionally include a support roller 1041 and a looped transport layer 1042; the supporting roller 1041 is used for dragging the transmission layer 1042 to rotate; the organic light emitting display panel 102 includes a second light emitting surface; the side of the organic light emitting display panel 102 away from the second light emitting surface is fixed opposite to the transmitting layer 1042; the side of the reflective layer 103 close to the rotating structure 104 is fixed opposite to the transport layer 1042.
Specifically, the rotating structure 104 is composed of a supporting roller 1041 and a transmitting layer 1042, the organic light emitting display panel 102 includes a second light emitting surface, a layer departing from the second light emitting surface is fixed to the transmitting layer 1042, and a side of the reflecting layer 103 close to the rotating structure 104 is also fixed to the transmitting layer 1042, so that the supporting roller 1041 drags the transmitting layer 1042 to rotate, and further drives the organic light emitting display panel 102 and the reflecting layer 103 to rotate.
The supporting rollers 1041 are used for rotating with the dragging transmission layer 1042, and may be cylindrical, and the specific number is not limited in the embodiments of the present invention, and may be two, for example, and are located at two sides of the display device respectively. The transmitting layer 1042 is fixed to the organic light emitting display panel 102 and the reflective layer 103, respectively, for driving the organic light emitting display panel 102 and the reflective layer 103 to rotate. The second light emitting surface refers to a light emitting surface of the organic light emitting display panel 102, which can provide a light source for the liquid crystal display panel 101 or perform self-light emission for conventional display. The supporting roller 1041 is used for dragging the transmission layer 1042 to rotate, so as to drive the organic light emitting display panel 102 and the reflection layer 103 to rotate, and the rotation structure 104 is ensured to have the advantages of high rotation precision, reliability and stability. It should be noted that, in this embodiment, the organic light emitting display panel 102 and the reflective layer 103 may be fabricated on the same substrate, and when the functional film layer of the organic light emitting display panel 102 is formed by the insulating layer and the metal layer disposed at an interval, the functional film layer is also disposed in the region where the reflective layer 103 is disposed, and after the functional film layer of the organic light emitting display panel 102 is fabricated in the region where the reflective layer 103 is located, a reflective film is further disposed, for example, a reflective film formed by a layer of silver may be disposed.
With continued reference to fig. 4, optionally, in the first display state or the second display state, the transfer layer 1042 may form a first surface 10421, a second surface 10412, a third surface 10423 and a fourth surface 10424 which are connected in sequence; the first surface 10421 and the third surface 10423 are oppositely disposed; the second surface 10422 and the fourth surface 10424 are oppositely arranged; the organic light emitting display panel 102 is fixed on the first surface 10421; the reflective layer 103 is fixed to the third surface 10423.
Specifically, when the display device is adjusted to the first display state shown in fig. 2 or the second display state shown in fig. 3, the transfer layer 1042 may be defined by sequentially connecting a first surface 10421, a second surface 10412, a third surface 10423, and a fourth surface 10424, and fig. 4 is illustrated in the first display state, in which the first surface 10421 and the second surface 10422 are respectively disposed opposite to the third surface 10423 and the fourth surface 10424, the organic light emitting display panel 102 is fixed on the first surface 10421, and the reflective layer 103 is fixed on the third surface 10423. Exemplarily, referring to fig. 4, in the first display state, the liquid crystal display panel 101, the organic light emitting display panel 102, the first surface 10421 of the transfer layer 1042, the third surface 10423 of the transfer layer 1042, and the reflective layer 103 are sequentially stacked. As shown in fig. 3 and 4, in the second display state, the liquid crystal display panel 101, the reflective layer 103, the third surface 10423 of the transfer layer 1042, the first surface 10421 of the transfer layer 1042, and the organic light emitting display panel 102 are sequentially stacked. By dividing the transfer layer 1042 into four surfaces, it is convenient to achieve a parallel arrangement of the liquid crystal display panel 101 and the reflective layer 103 layers with the organic light emitting display panel 102.
With continued reference to fig. 4, the second and fourth surfaces may alternatively be convexly curved.
The inner diameter of the convex curved surface may be the same as the inner diameter of the supporting roller 1041, the specific size is not limited in the embodiment of the present invention, and the smaller the inner diameter of the convex curved surface is, the better the inner diameter is on the premise that the organic light emitting display panel 102 is not folded, which is beneficial to the ultrathin display device. In addition, the second surface and the fourth surface are convex curved surfaces in the implementation, so that the organic light emitting display panel 102 and the reflective layer 103 are curved and bent in the rotating process, and the organic light emitting display panel 102 and the reflective layer 103 are effectively prevented from being folded due to small bending angles.
Optionally, the spacing between the first surface 10421 and the third surface 10423 ranges from 3mm to 10mm.
Specifically, the distance between the first surface 10421 and the third surface 10423 includes the thicknesses of the first surface 10421 and the third surface 10423 themselves and the thickness of the internal structure of the rotating structure 104, and the range of the distance is 3mm to 10mm, which ensures that the display device is an ultra-thin structure on one hand, and ensures that the rotating structure 104 has a certain space for placing the supporting roller 1041 on the other hand, so as to facilitate the driving of the transfer layer 1042 to rotate.
Fig. 6 is a schematic cross-sectional structure diagram of a liquid crystal display panel according to an embodiment of the invention, as shown in fig. 6, optionally, a first substrate 1011, a first thin film transistor layer 1012, a liquid crystal layer 1013, and a color filter substrate 1014 may be disposed on the liquid crystal display panel 101 in a direction close to the first light emitting surface.
A plurality of pixel units arranged in a matrix are disposed on the first substrate 1011, and each pixel unit is provided with a corresponding pixel electrode and a corresponding thin film transistor. The first substrate 1011 may be a glass substrate. The first thin film transistor layer 1012 is disposed on the first substrate 1011 and includes a thin film transistor, and the voltage at two ends of the liquid crystal molecules of the liquid crystal layer 1013 is controlled by the thin film transistor to deflect the liquid crystal molecules, so as to change the polarization of the light, and then the brightness of the pixel unit on the first substrate 1011 is determined by the polarizer. The liquid crystal layer 1013 is formed by liquid crystal molecules, which can be penetrated by light and affect the polarization of the light, and the voltages applied to the two ends of the liquid crystal molecules are different, so that the turning degree of the liquid crystal molecules is different, and thus the polarization of the light transmitted is different according to the angle of the liquid crystal molecules, thereby controlling the intensity of the light. The color filter substrate 1014 is provided with a plurality of color filter units arranged in a matrix, and the color filter units are used for converting and mixing light transmitted by the liquid crystal layer 1013 into various colors through the color filter. The specific arrangement of the color filters on the color filter substrate 1014 is not limited in the embodiments of the present invention, and may be, for example, a straight bar type, a mosaic type, or a four-pixel type.
The above is a partial basic structure of the liquid crystal display panel 101, and the basic display principle of the liquid crystal display panel 101 is realized by arranging the first substrate 1011, the first thin film transistor layer 1012, the liquid crystal layer 1013 and the color film substrate 1014, and the liquid crystal display panel has the advantages of simple driving circuit and mature process.
Fig. 7 is a schematic cross-sectional structure view of an organic light-emitting display panel according to an embodiment of the invention, and optionally, the organic light-emitting display panel 102 may be provided with a second substrate 1021, a second thin-film transistor layer 1022, and an organic light-emitting layer 1023 in a direction close to a second light-emitting surface; the second substrate is made of flexible material.
The second substrate 1021 is provided with a plurality of pixel units arranged in a matrix, and the second substrate 1021 is a flexible substrate, such as polyimide, which is beneficial for the organic light emitting display panel 102 to rotate along with the rotation structure 104. The second thin film transistor layer 1022 is disposed on the second substrate 1021 and includes a thin film transistor. The on or off of the corresponding pixels is controlled by the independent thin film transistors, and each pixel can continuously and independently emit light. The organic light emitting layer 1023 is located between the anode and the cathode of the organic light emitting display panel 102, and when a voltage is input, positive holes and cathode charges are combined in the organic light emitting layer 1023 to emit light, thereby realizing self-luminescence of the organic light emitting display panel 102.
The above is a partial basic structure of the liquid crystal display panel 101, and the basic display principle of self-luminescence of the organic light-emitting display panel 102 is realized by arranging the second substrate 1021, the second thin-film transistor layer 1022, and the organic light-emitting layer 1023, and the liquid crystal display panel has the advantages of simple structure, light weight, more vivid color, and flexibility.
Fig. 8 is a schematic cross-sectional structure diagram of another display device according to an embodiment of the present invention, and referring to fig. 8, the display device further includes: the auxiliary support structure 107; the auxiliary support structure 107 is used to support and fix the liquid crystal display panel 101 and the cover plate layer 105 such that an accommodation space is formed between the liquid crystal display panel 101 and the cover plate layer 105; the receiving space is used to receive the organic light emitting display panel 102, the rotational structure 104, and the reflective layer 103.
The auxiliary supporting structure 107 is used for supporting and fixing the liquid crystal display panel 101 and the cover plate layer 105, and the specific material, shape and number of the auxiliary supporting structure are not limited in the embodiments of the present invention, for example, the auxiliary supporting structure is a structure made of a columnar high-hardness material, and is disposed between the second surface 10422 and the fourth surface 10424, so as to ensure that the rotation of the supporting roller 1041 is not affected. Further, the auxiliary supporting structure 107 forms an accommodating space between the liquid crystal display panel 101 and the cover plate layer 105 to accommodate the organic light emitting display panel 102, the rotating structure 104 and the reflective layer 103, so that the display device is not easily deformed when an external force is applied.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A display device, comprising: the display device comprises a liquid crystal display panel, an organic light-emitting display panel, a reflecting layer and a rotating structure; the liquid crystal display panel comprises a first light-emitting surface; the organic light-emitting display panel, the rotating structure and the reflecting layer are positioned on one side of the liquid crystal display panel, which is far away from the first light-emitting surface;
in a first display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the organic light-emitting display panel and the reflecting layer are sequentially stacked;
in a second display state, the rotating structure is used for driving the organic light-emitting display panel and the reflecting layer to rotate until the liquid crystal display panel, the reflecting layer and the organic light-emitting display panel are sequentially stacked;
the rotating structure comprises a supporting roller and a conveying layer forming a loop; the supporting roller is used for dragging the conveying layer to rotate;
the organic light-emitting display panel comprises a second light-emitting surface; one side of the organic light-emitting display panel, which is far away from the second light-emitting surface, is relatively fixed with the transmission layer; one side of the reflecting layer close to the rotating structure is fixed relative to the transmission layer;
in the first display state or the second display state, the transmission layer forms a first surface, a second surface, a third surface and a fourth surface which are connected in sequence; the first surface and the third surface are oppositely arranged; the second surface and the fourth surface are oppositely arranged;
the organic light-emitting display panel is fixed on the first surface; the reflecting layer is fixed on the third surface;
in the first display state, the organic light-emitting display panel is reused as a backlight source of the liquid crystal display panel; the reflecting layer is in a mirror surface state;
in the second display state, the reflecting layer realizes the reflective display of the liquid crystal display panel; the organic light emitting display panel displays alone.
2. The display device according to claim 1, further comprising: a cover plate layer; the organic light emitting display panel, the rotation structure and the reflection layer are positioned between the liquid crystal display panel and the cover plate layer.
3. The display device according to claim 1, wherein the second surface and the fourth surface are convexly curved surfaces.
4. The display device according to claim 1, wherein a spacing between the first surface and the third surface is in a range of 3mm to 10mm.
5. The display device according to claim 1, wherein the liquid crystal display panel is provided with a first substrate, a first thin film transistor layer, a liquid crystal layer, and a color film substrate in a direction close to the first light exit surface.
6. The display device according to claim 1, wherein the organic light emitting display panel is provided with a second substrate, a second thin film transistor layer, and an organic light emitting layer in a direction close to the second light emitting surface; the second substrate base plate is made of flexible materials.
7. The display device according to claim 2, further comprising: an auxiliary support structure;
the auxiliary support structure is used for supporting and fixing the liquid crystal display panel and the cover plate layer, so that an accommodating space is formed between the liquid crystal display panel and the cover plate layer; the receiving space is used for receiving the organic light emitting display panel, the rotating structure and the reflective layer.
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