CN106057856A - Transparent display device and display method - Google Patents
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- CN106057856A CN106057856A CN201610454826.4A CN201610454826A CN106057856A CN 106057856 A CN106057856 A CN 106057856A CN 201610454826 A CN201610454826 A CN 201610454826A CN 106057856 A CN106057856 A CN 106057856A
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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
本发明涉及一种透明显示装置及显示方法，用以解决如何提高现有的透明显示装置的显示画面对比度和显示效果的问题。该透明显示装置包括：具有若干个子像素的透明显示面板，以及若干个能够单独调节的调光单元；其中，每个调光单元对应至少一个子像素；子像素为显示模式时，与该子像素对应的调光单元为遮光模式；子像素为透明模式时，与该子像素对应的调光单元为透明模式。本发明的透明显示装置中设置有若干个能够单独调节的调光单元、且每个调光单元对应至少一个子像素，因而可以根据子像素的当前的模式调节对应的调光单元的模式，进而可以根据需要屏蔽透明显示面板中任一子像素背面的环境光，提高透明显示装置的对比度，使显示效果更佳。
The invention relates to a transparent display device and a display method, which are used to solve the problem of how to improve the contrast ratio and display effect of the display screen of the existing transparent display device. The transparent display device includes: a transparent display panel with several sub-pixels, and several individually adjustable dimming units; wherein, each dimming unit corresponds to at least one sub-pixel; when the sub-pixel is in display mode, the sub-pixel The corresponding dimming unit is in the light-shielding mode; when the sub-pixel is in the transparent mode, the dimming unit corresponding to the sub-pixel is in the transparent mode. The transparent display device of the present invention is provided with several independently adjustable dimming units, and each dimming unit corresponds to at least one sub-pixel, so the mode of the corresponding dimming unit can be adjusted according to the current mode of the sub-pixel, and then The ambient light on the back of any sub-pixel in the transparent display panel can be shielded as required, the contrast of the transparent display device can be improved, and the display effect can be better.
Description
Technical Field
The invention relates to the field of display panels, in particular to a transparent display device and a display method.
Background
At present, transparent display devices are receiving attention as new applications appearing in recent years, and the technology greatly expands the scenes and the range of display applications and also provides convenience for the life of people. However, in the conventional OLED (organic light-Emitting Diode) transparent display technology, in the gray scale display mode, if the external ambient light is strong, people can see an image to be displayed and an image of an object penetrating through the back surface of the display device on the display device at the same time, and the two images are overlapped, which results in a low contrast ratio and a poor display effect.
In order to solve the above problems, in the prior art, on the basis of the original OLED display panel technology, the transmittance of the transparent display panel is improved by increasing the proportion of the pixel light-transmitting area, and in an environment with strong external ambient light, the OLED display image contrast is extremely low due to the high light-transmitting area, and the transparent display effect is greatly reduced.
In summary, in the conventional transparent display device, how to improve the contrast and the display effect of the display screen of the transparent display device is an urgent problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a transparent display device and a display method, which are used for solving the problem of how to improve the contrast ratio and the display effect of a display picture of the conventional transparent display device.
The embodiment of the invention provides a transparent display device, which comprises: the display device comprises a transparent display panel with a plurality of sub-pixels and a plurality of dimming units which can be adjusted independently; wherein,
each dimming unit corresponds to at least one sub-pixel; when the sub-pixel is in the display mode, the light adjusting unit corresponding to the sub-pixel is in the light shading mode; when the sub-pixel is in the transparent mode, the light adjusting unit corresponding to the sub-pixel is in the transparent mode.
In the transparent display device provided by the embodiment of the invention, the plurality of dimming units which can be independently adjusted are arranged, and each dimming unit corresponds to at least one sub-pixel, so that the mode of the corresponding dimming unit can be adjusted according to the current mode of the sub-pixel, the ambient light on the back of any sub-pixel in the transparent display panel can be shielded according to the requirement, the contrast of the transparent display device is improved, and the display effect is better.
Preferably, the orthographic projection of all the dimming units on the transparent display panel covers the whole display area of the transparent display panel.
Preferably, the dimming unit comprises a first electrode, a second electrode, and a dimming film layer located between the first electrode and the second electrode; wherein,
when the first electrode and the second electrode are loaded with zero voltage difference, the dimming film layer is in a shading state; when the preset voltage difference is loaded on the first electrode and the second electrode, the dimming film layer is in a transparent state.
Preferably, the material of the dimming film layer is an electrochromic material.
Preferably, each dimming film layer in each dimming unit is an integral structure with a whole layer; or, each dimming film layer in each dimming unit is independent.
Preferably, each first electrode in each dimming unit is an integral structure of a whole layer, and each second electrode in each dimming unit is independent of each other; or,
the first electrodes in the dimming units are mutually independent, and the second electrodes in the dimming units are of an integral structure of a whole layer; or,
the first electrodes of the light adjusting units are mutually independent, and the second electrodes of the light adjusting units are mutually independent.
Preferably, when the transparent display panel is a double-sided display panel, each dimming unit is arranged inside the transparent display panel;
when the transparent display panel is a single-sided display panel, each dimming unit is arranged on the non-display surface of the transparent display panel.
Preferably, the transparent display panel is an organic light emitting diode OLED display panel.
The embodiment of the invention provides a display method of the transparent display device, which comprises the following steps:
for each sub-pixel in the transparent display panel:
according to the signal voltage value loaded by the sub-pixel, when the current display mode of the sub-pixel is determined, the dimming unit corresponding to the sub-pixel is adjusted to be in a shading mode;
and adjusting the dimming unit corresponding to the sub-pixel to be in the transparent mode when the sub-pixel is determined to be in the transparent mode currently according to the signal voltage value loaded by the sub-pixel.
Preferably, the dimming unit is adjusted to a shading mode according to the following manner: loading a zero voltage difference on the first electrode and the second electrode to enable the dimming film layer to be in a shading state;
adjusting the dimming cell to a transparent mode according to: and loading a preset voltage difference on the first electrode and the second electrode so as to enable the dimming film layer to be in a transparent state.
Drawings
Fig. 1 is a schematic structural diagram of a first transparent display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second transparent display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
As shown in fig. 1, a schematic structural diagram of a first transparent display device provided in an embodiment of the present invention includes: a transparent display panel having a plurality of sub-pixels 101, and a plurality of dimming cells 102 capable of being individually adjusted; each dimming unit 102 corresponds to at least one sub-pixel 101; when the sub-pixel 101 is in the display mode, the dimming unit 102 corresponding to the sub-pixel is in the shading mode; when the sub-pixel 101 is in the transparent mode, the dimming cell 102 corresponding to the sub-pixel is in the transparent mode.
In practical implementation, fig. 1 shows a schematic structural diagram of a transparent display device, in which the transparent display device includes 6 sub-pixels 101 and 6 dimming units 102, and in order to effectively improve the contrast ratio of the transparent display device, each dimming unit 102 provided in the transparent display device according to an embodiment of the present invention corresponds to one sub-pixel 101 in a transparent display panel, where the dimming unit has at least two display modes, namely a light-shielding mode and a transparent mode.
For example, in fig. 1, when the first three sub-pixels 101 are in the display mode (i.e., gray scale display), the corresponding first three dimming units are in the dark color light shielding mode; when the last three sub-pixels 101 are in a transparent mode (i.e., transparent non-gray scale display), the corresponding last three dimming units are in a dark transparent mode; when the sub-pixel does not need to be displayed at present, the corresponding light adjusting unit is adjusted to be in a transparent mode, so that the position of the sub-pixel is in a transparent state. Therefore, the transparent display device provided by the embodiment of the invention can adjust the mode of the dimming unit according to the display mode of the sub-pixel corresponding to the dimming unit, and further can shield the ambient light on the back of any sub-pixel in the transparent display panel, improve the contrast of the transparent display device, and enable the display effect to be better.
The number of sub-pixels corresponding to each dimming unit 102 may be adjusted as needed, for example, each dimming unit 102 may also be set to correspond to R, G, B three sub-pixels in the transparent display panel; or as a specific area of the transparent display panel corresponding to each dimming cell 102, for example, the specific area is either displaying images or being in a transparent mode according to actual needs, so that the ambient light on the back side can be controlled by one dimming cell 102.
In order to effectively improve the contrast ratio of the transparent display device without increasing the width of the transparent display device, the dimming unit needs to be disposed in the display area of the transparent display panel. Preferably, the orthographic projection of all the dimming units on the transparent display panel covers the whole display area of the transparent display panel. That is, all the dimming cells are provided to cover at least the entire display area of the transparent display panel, but they may be provided as needed so as not to increase the width of the transparent display device and not to be too large in size.
As for each of the dimming units, the specific structure thereof may be set as required, as long as the self-display mode can be adjusted according to the mode of the corresponding sub-pixel, as shown in fig. 2, which is a schematic structural diagram of a second transparent display device provided in the embodiment of the present invention, fig. 2 is only a feasible structural diagram, the transparent display device provided in the embodiment of the present invention is not limited to this structure, and preferably, the dimming unit 102 includes a first electrode 1021, a second electrode 1022, and a dimming film 1023 located between the first electrode 1021 and the second electrode 1022; when a zero voltage difference is applied to the first electrode 1021 and the second electrode 1022, the dimming film 1023 is in a light-shielding state; when a predetermined voltage difference is applied between the first electrode 1021 and the second electrode 1022, the dimming film 1023 is in a transparent state.
In specific implementation, the dimming unit 102 may be configured to control the display mode by voltage, and specifically, includes two first electrodes 1021 and two second electrodes 1022 for applying a voltage difference, and a dimming film 1023 capable of changing states (light shielding or transparent) according to the voltage difference; a voltage difference may be applied to the first electrode 1021 and the second electrode 1022 according to the requirement, and the specific voltage difference is set according to the material of the dimming film layer 1023.
For example, when no voltage is applied to the first electrode 1021 and the second electrode 1022, or the voltage difference applied to the first electrode 1021 and the second electrode 1022 is zero, the dimming film layer 1023 can be changed into a light-shielding state, and the dimming unit 102 is in a light-shielding mode; when a predetermined voltage difference (e.g., 3V or 5V) is applied between the first electrode 1021 and the second electrode 1022, the dimming film 1023 can be in a transparent state, and the dimming unit 102 is in a transparent mode. The voltage difference applied between the first electrode 1021 and the second electrode 1022 is determined by the mode of the sub-pixel 101 corresponding to the dimming unit 102.
Further, the dimming film layer in the light unit is described in detail below.
The structure of the dimming film layer in the dimming cells may be integrated or independent as needed, as long as each dimming cell can be controlled independently and separately. Preferably, each dimming film layer in each dimming unit is of an integral structure; or, the dimming film layers in the dimming units are independent of each other.
As shown in fig. 2, each dimming film layer in each dimming unit in the figure is an integral structure of a whole layer, and since the modes of the dimming units can be separately controlled, the whole layer of dimming film layer has a transparent mode on a right side and a light-blocking mode on a left side. In addition, each dimming film layer in each dimming unit can be set to be mutually independent structure according to needs, so that the independent control is convenient, and the normal display of the transparent display device is not influenced when the dimming film layer changes the shading or transparent state.
Since each light control unit can be controlled individually, at least one electrode (the first electrode or the second electrode) of each electrode of each light control unit is configured to correspond to a sub-pixel and to be independent of each other. Preferably, each first electrode in each dimming unit is an integral structure of a whole layer, and each second electrode in each dimming unit is independent of each other; or, the first electrodes in the light adjusting units are mutually independent, and the second electrodes in the light adjusting units are of an integral structure; or, the first electrodes in the light adjusting units are mutually independent, and the second electrodes in the light adjusting units are mutually independent.
In a specific implementation, the first electrodes in all the dimming cells may be configured as an integral structure of a whole layer, and in this case, in order to enable each dimming cell to be controlled individually, the second electrodes in all the corresponding dimming cells must be configured as independent structures, that is, as shown in fig. 2, 6 sub-pixels in the figure, all the first electrodes in all the corresponding dimming cells are configured as an integral structure of a whole layer, and the second electrodes in all the corresponding dimming cells must be configured as independent structures. In addition, the first electrodes and the second electrodes in all the dimming cells may be configured to be independent of each other as needed.
The first electrode and the second electrode are only used for distinguishing the electrodes, and are not used for limiting the invention, and the positions of the two electrodes can be interchanged.
The material of the dimming film layer in the dimming unit can be selected as required, and the dimming film layer can be made of an electrochromic material, preferably, as long as the dimming film layer can be in a dimming mode and can block the background light on the back of the transparent display device.
In specific implementation, the transparent display device provided in the embodiment of the present invention may be any device capable of performing transparent display in the prior art, such as a double-sided transparent display screen or a single-sided transparent display screen. Preferably, when the transparent display panel is a double-sided display panel, each dimming unit is arranged inside the transparent display panel; when the transparent display panel is a single-sided display panel, each dimming cell is disposed on a non-display surface of the transparent display panel.
Specifically, if the transparent display device provided in the embodiment of the present invention is a double-sided transparent display screen, that is, if the transparent display panel is a double-sided display panel, each dimming unit may be disposed inside the transparent display panel, so that the dimming unit can simultaneously act on two display surfaces; if the transparent display device provided by the embodiment of the present invention is a single-sided transparent display screen, that is, the transparent display panel is a single-sided display panel, the dimming units are mainly used to block the backlight on the back side of the transparent display device, and therefore, each dimming unit needs to be disposed on the non-display side of the transparent display panel. In this case, in order to protect the light control unit, it is necessary to provide a glass substrate on the outermost side of the light control unit, and as shown in fig. 2, when the transparent display panel is preferably a single-sided display panel, the transparent display device further includes: and the glass substrate 103 is arranged on one side of each light modulation unit, which is far away from the transparent display panel.
The type of the transparent display panel in the transparent display device may be any transparent display panel in the prior art, and may not be limited herein. Preferably, the transparent display panel is an organic light emitting diode OLED display panel.
Based on the same conception, the embodiment of the invention also provides a display method of the transparent display device. Because the principle of the display method for solving the problem is similar to that of the transparent display device provided by the embodiment of the invention, the implementation of the display method can be referred to the implementation of the transparent display device, and repeated details are not repeated.
The embodiment of the invention provides a display method of the transparent display device, which comprises the following steps: for each sub-pixel in the transparent display panel: according to the signal voltage value loaded by the sub-pixel, when the current display mode of the sub-pixel is determined, the dimming unit corresponding to the sub-pixel is adjusted to be in a shading mode; and adjusting the dimming unit corresponding to the sub-pixel to be in the transparent mode when the sub-pixel is determined to be in the transparent mode currently according to the signal voltage value loaded by the sub-pixel.
In specific implementation, the principle of the display method is the same for each sub-pixel in the transparent display panel, that is, the current state of the sub-pixel can be determined according to the signal voltage value of the sub-pixel, if it is determined that the sub-pixel is currently in the display mode (gray scale display), an image needs to be displayed, and in order to make a user better see clearly the content of the displayed image, the dimming unit corresponding to the sub-pixel can be adjusted to the shading mode to shade the ambient light on the back of the sub-pixel; if it is determined that the sub-pixel is currently in the transparent mode (transparent non-gray scale display), the sub-pixel does not need to display an image, and in order to better embody the function of the transparent display panel, the dimming unit corresponding to the sub-pixel may be adjusted to the transparent mode, so that a user can clearly see an object on the back of the sub-pixel through the sub-pixel.
Specifically, the state of the dimming film layer can be adjusted through the first electrode and the second electrode in the dimming cell described above. Preferably, the dimming unit is adjusted to the shading mode according to the following manner: loading a zero voltage difference on the first electrode and the second electrode to enable the dimming film layer to be in a shading state; the dimming cell is adjusted to a transparent mode according to the following: and loading a preset voltage difference on the first electrode and the second electrode so as to enable the dimming film layer to be in a transparent state.
In implementation, when no voltage is applied to the first electrode and the second electrode, or the voltage difference applied to the first electrode and the second electrode is zero, the dimming film is correspondingly changed into a light-shielding state, and the dimming unit is adjusted to be in a light-shielding mode at the moment; when a preset voltage difference is loaded between the first electrode and the second electrode, the dimming film layer correspondingly changes into a transparent state, and the dimming unit is adjusted to be in a transparent mode at the moment.
In summary, in the transparent display device provided in the embodiments of the present invention, a plurality of dimming units capable of being independently adjusted are disposed, and each dimming unit corresponds to at least one sub-pixel, so that the mode of the corresponding dimming unit can be adjusted according to the current mode of the sub-pixel, and further ambient light on the back of any sub-pixel in the transparent display panel can be shielded according to needs, thereby improving the contrast of the transparent display device and enabling the display effect to be better.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A transparent display device, comprising: the display device comprises a transparent display panel with a plurality of sub-pixels and a plurality of dimming units which can be adjusted independently; wherein,
each dimming unit corresponds to at least one sub-pixel; when the sub-pixel is in the display mode, the light adjusting unit corresponding to the sub-pixel is in the light shading mode; when the sub-pixel is in the transparent mode, the light adjusting unit corresponding to the sub-pixel is in the transparent mode.
2. The transparent display device of claim 1, wherein the orthographic projection of all the dimming cells on the transparent display panel covers the entire display area of the transparent display panel.
3. The transparent display device of claim 1, wherein the dimming cell comprises a first electrode, a second electrode, and a dimming film layer between the first electrode and the second electrode; wherein,
when the first electrode and the second electrode are loaded with zero voltage difference, the dimming film layer is in a shading state; when the preset voltage difference is loaded on the first electrode and the second electrode, the dimming film layer is in a transparent state.
4. The transparent display device of claim 3, wherein each dimming film layer in each dimming cell is an integral structure of a whole layer; or, each dimming film layer in each dimming unit is independent.
5. The transparent display device of claim 3, wherein the material of the dimming film layer is an electrochromic material.
6. The transparent display device according to claim 3, wherein each first electrode in each of the dimming cells is an integral structure of a whole layer, and each second electrode in each of the dimming cells is independent of each other; or,
the first electrodes in the dimming units are mutually independent, and the second electrodes in the dimming units are of an integral structure of a whole layer; or,
the first electrodes of the light adjusting units are mutually independent, and the second electrodes of the light adjusting units are mutually independent.
7. The transparent display device according to claim 1, wherein when the transparent display panel is a double-sided display panel, each of the dimming cells is disposed inside the transparent display panel;
when the transparent display panel is a single-sided display panel, each dimming unit is arranged on the non-display surface of the transparent display panel.
8. The transparent display device according to any one of claims 1 to 7, wherein the transparent display panel is an Organic Light Emitting Diode (OLED) display panel.
9. A display method of the transparent display apparatus according to any one of claims 1 to 8, comprising:
for each sub-pixel in the transparent display panel:
according to the signal voltage value loaded by the sub-pixel, when the current display mode of the sub-pixel is determined, the dimming unit corresponding to the sub-pixel is adjusted to be in a shading mode;
and adjusting the dimming unit corresponding to the sub-pixel to be in the transparent mode when the sub-pixel is determined to be in the transparent mode currently according to the signal voltage value loaded by the sub-pixel.
10. The method of claim 9, wherein the dimming cell is adjusted to a shading mode according to: loading a zero voltage difference on the first electrode and the second electrode to enable the dimming film layer to be in a shading state;
adjusting the dimming cell to a transparent mode according to: and loading a preset voltage difference on the first electrode and the second electrode so as to enable the dimming film layer to be in a transparent state.
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