At least one embodiment of the present invention relates to a display panel and a display device.
In a display device, as shown in
In order to accommodate the development of the above industries, a display device capable of achieving double-sided display or illumination has been developed. As shown in
At least one embodiment of the present invention provides a display panel and a display device for simplifying the structure of the display device capable of achieving double-sided display.
At least one embodiment of the present invention provides a display panel comprising a first substrate; a first liquid crystal display structure and an organic electroluminescent structure. The first liquid crystal display structure and the organic electroluminescent structure are respectively provided at both sides of the first substrate. The organic electroluminescent structure can emit light from both sides, and the light emitted from a side of the organic electroluminescent structure facing the first liquid crystal display structure is used as the backlight for the first liquid crystal display structure, and the light emitted from a side facing away from the first liquid crystal display structure is used to illuminate or display.
At least one embodiment of the present invention also provides a display device including the above display panel.
In order to clearly illustrate the technical solution of the embodiments of the invention, the drawings of the embodiments will be briefly described in the following; it is obvious that the described drawings are only related to some embodiments of the invention and thus are not limitative of the invention.
In order to make objects, technical details and advantages of the embodiments of the invention apparent, the technical solutions of the embodiments will be described in a clearly and fully understandable way in connection with the drawings related to the embodiments of the invention. Apparently, the described embodiments are just a part but not all of the embodiments of the invention. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of the invention.
The size and thickness of layers or films in the accompanying drawings do not reflect true scales, and are only used to illustrate the disclosure of the present invention.
The inventors of the present application noticed that the display device shown in
At least one embodiment of the present invention provides a display panel, as shown in
In the above display panel provided by at least one embodiment of the present invention, since the first liquid crystal display structure 2 and the organic electroluminescent structure 3 are respectively provided at the opposite sides of the first substrate 1, the thickness of the panel can be reduced. Furthermore, the organic electroluminescent structure 3 emits light from both sides, the light emitted from the side facing the first liquid crystal display structure 2 is used as the backlight for the first liquid crystal display structure 2 so that the first liquid crystal display structure can be used to display or illuminate, and the light emitted from the other side facing away from the first liquid crystal display structure 3 is used to illuminate or display; in this way, not only double-sided display or illumination can be achieved, but also the backlight provided specially for the first liquid crystal display structure 2 can be omitted, thus the thickness of the display panel can be further reduced.
In the display panel provided by an embodiment of the present invention, as shown in
In one embodiment, during the above-described display panel provided by the embodiment of the present invention is manufactured, as shown in
In the display panel provided by the embodiments of the present invention, as shown in
For example, the particular structure and embodiments of the pixel circuits for controlling the light emitting unit 5 can be achieved by the technology known by the person skilled in the art, and will not further described herein.
In one embodiment, each of the light emitting units 5 may include three light emitting sub-units 51, and these three light emitting sub-units 51 respectively emit light in three primary colors (Red, Green and Blue).
In order to increase the brightness of the organic electroluminescent structure 3, in the display panel provided by one embodiment of the present invention, the light emitting unit 5 each includes a light emitting sub-unit 51 for emitting white light. For example, each of the light miffing units 5 may have four light emitting sub-units 51, and these four light emitting sub-units 51 respectively emit light in four colors, i.e., Red, Green, Blue and White.
The display panel provided by one embodiment of the present invention may further include a first driving circuit 100 for driving the first liquid crystal display structure 2 and a second driving circuit 200 for driving the organic electroluminescent structure 3. When the above-described display panel provided by the embodiment of the present invention is used to double sided display, the first liquid crystal display structure 2 and the organic electroluminescent structure 3 are driven by the first driving circuit 100 and the second driving circuit 200, respectively, to display the same image information, that is, at the same time, the two sides of the display device (i.e., the first liquid crystal display structure 2 side and the organic electroluminescent structure 3 side) display the same image information. For example, when it is operated in the service branches of the communication industries, government agencies, banking business, traffic management, and so on, the staff and the customer can simultaneously watch the same information by the display device capable of double-sided display. Alternatively, the first liquid crystal display structure 2 and the organic electroluminescent structure 3 may be respectively driven by the first driving circuit 100 and the second driving circuit 200 to display different image information, that is, at the same time, the two sides of the display device (i.e., the first liquid crystal display structure 2 side and the organic electroluminescent structure 3 side) display different image information. For example, when used at home, the television capable of double-sided display may facilitate two persons to watch different TV programs at the same time.
It should be noted that when implementing the above display panel as provided by the embodiments of the present invention, since the light emitted from the side of the organic electroluminescent structure 2 facing the first liquid crystal display structure 2 is used as the backlight for the first liquid crystal display structure 2, thus, when the first driving circuit 100 drives the first liquid crystal display structure 2 to display or illuminate, the second driving circuit 200 is in on-state; while when the second driving circuit 200 drives the organic electroluminescent structure 3 to display or illustrate, it is not restricted by the operation state of the first driving circuit 100, that is, whatever the first driving circuit 100 is in on- or off-state, the organic electroluminescent structure 3 can be used to display or illuminate. It should be noted that the drawings only schematically show the connection relationship between the first driving circuit 100 and the first liquid crystal display structure 2 and between the second driving circuit 200 and the organic electroluminescent structure 3, the embodiments of the present invention will not be limited thereto.
When implementing the above display panel provided by the embodiments of the present invention, as shown in
Compared with the display panel shown in
In one embodiment, during manufacturing of the above display panel provided by the embodiment of the present invention, as shown in
The display panel provided by an embodiment of the present invention, as shown in
For example, the organic electroluminescent structure 3 in
For example, in the above-described display panel provided by the embodiment of the present invention, as shown in
For example, the specific structure and implementation of the first liquid crystal display structure 2 and the second liquid crystal display structure 10 can use the technology well-known to the person skilled in the art, and will not further described herein.
The display panel provided by an embodiment of the present invention may further include a first driving circuit 100 for driving the first liquid crystal display structure 2 to display and a third driving circuit 300 for driving the second liquid crystal display structure 10. When the above display panel provided by the embodiment of the present invention is used to conduct double-sided display, the first liquid crystal display structure 2 and the second liquid crystal display structure 10 are respectively driven by the first driving circuit 100 and the third driving circuit 300 to display same image information, that is, at the same time, both sides of the display device (that is, the first liquid crystal display structure 2 side and the second liquid crystal display structure 10 side) display the same image information. For example, when it is operated in the service branches of the communication, government agencies, banking business, traffic management, and so on, the staff and the customer can simultaneously watch the same information by the display device capable of double-sided display. Alternatively, the first liquid crystal display structure 2 and the second liquid crystal display structure 10 are respectively driven by the first driving circuit 100 and the third driving circuit 300 to display different image information, that is, at the same time, both sides of the display device (that is, the first liquid crystal display structure 2 side and the second liquid crystal display structure 10 side) display different image information. For example, when the television capable of double-sided display is used at home, two persons may watch different TV programs at the same time. It should be noted that the drawings only schematically show the connection relationship between the first driving circuit 100 and the first liquid crystal display structure 2 and between the third driving circuit 300 and the second liquid crystal display structure 10, the embodiments of the present invention will not be limited thereto.
It should be noted that, in implementing the display panel shown in
Furthermore, there is no interference between the operation state of the first driving circuit 100 and the operation state of the third driving circuit 300. For example, when the first driving circuit 100 is in on-state and the third driving circuit 300 is in off-state, only the first liquid crystal display structure 2 side is used for display or illumination; or when the first driving circuit 100 is in off-state and the third driving circuit 300 is in on-state, only the second liquid crystal display structure 10 side is used for display or illumination; or when the first driving circuit 100 and the third driving circuit 300 both are in on-state, the first liquid crystal display structure 2 and the second liquid crystal display structure 10 both are used for display or illumination, and double-sided display or illumination can be achieved.
Furthermore, in the case that the display panel shown in
In the case that the display panel shown in
Based on the same inventive concept, at least one embodiment of the present invention further provides a display device comprising the above display panel provided by the embodiments of the present invention. The display device can be any product or component having display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, and so on. The display device can be implemented by referring to the above embodiments of the display panel, and will not be further described herein.
At least one embodiment of the present invention provides a display panel and a display device, the display panel includes a first substrate, a first liquid crystal display structure and an organic electroluminescent structure. Since the first liquid crystal display structure and the organic electroluminescent structure are respectively provided at the opposite sides of the first substrate and furthermore the organic electroluminescent structure can emit light from both sides, the light emitted from a side of the organic electroluminescent structure facing the first liquid crystal display structure can be used as the backlight of the first liquid crystal display structure so that the first liquid crystal display structure can be used for display or illumination, and the light emitted from a side of the organic electroluminescent structure facing away from the first liquid crystal display structure can be used for display or illumination, not only the double-sided display or illumination can be achieved, but also the backlight source separately provided for the first liquid crystal display structure can be omitted, thus the thickness of the display panel can be further reduced.
It is apparent to the person skilled in the art that various modification and variation can be made to the present invention without departing from the spirit and scope of the present invention. Thus, it is intended to include these modification and variation in the present invention if these modification and variation falls within the scope defined by the claims and its equivalents.
The present application claims the priority of Chinese Patent Application No. 201410100595.8 filed on Mar. 18, 2014, the Chinese Patent Application is entirely incorporated herein by reference as a part of the present application.
Number | Date | Country | Kind |
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201410100595.8 | Mar 2014 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2014/085051 | 8/22/2014 | WO | 00 |