This application claims priority to the Chinese Patent Application No. 201610614374.1, filed on Jul. 29, 2016, which is incorporated herein by reference in its entirety.
The present disclosure relates to the field of display technologies, and more particularly, to a display panel, a method for driving the same, and an anti-peeping system.
Currently, with the development of display technologies and network technologies, more and more people conduct operations such as shopping or account transactions etc. through networks. During the above operations, operators often need to enter personal information on display devices such as computers, cell phones, automatic teller machines, automatic ticket machines etc., which may easily lead to leakage of the personal information. As a result, anti-peeping performance of the display devices increasingly gets widespread attentions, and it strives to ensure security of the personal information of the operators. In addition, special display apparatuses are required in some special industries. In particular, confidential information needs to be transmitted to specific personnel. In this case, a display device which transmits information is required to have anti-peeping performance.
Therefore, a technical problem which urgently needs to be solved by those skilled in the art is how to realize the anti-peeping function of the display device.
The embodiments of the present disclosure provide a display panel, a method for driving the same, and an anti-peeping system, to at least partly solve the problem in the related art that the display devices cannot effectively realize anti-peeping.
The embodiments of the present disclosure provide a display panel, comprising: a substrate; and multiple pixel units arranged on the substrate in an array, each of the pixel units comprising first self-luminous devices, second self-luminous devices, and quantum dot luminous devices, wherein the first self-luminous devices and the second self-luminous devices are stacked in various sub-pixel regions, the quantum dot luminous devices are disposed in at least two sub-pixel regions, and quantum dot luminous devices disposed in different sub-pixel regions have different luminous colors, wherein the first self-luminous devices are configured to excite the quantum dot luminous devices to emit light during a display period of one frame to display a normal picture, and the second self-luminous devices are configured to be in a turn-off state during the display period of one frame and excite quantum dot luminous devices within a part of the sub-pixel regions to emit light during an interference period of one frame to display an interference picture.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, each of the sub-pixel regions has a quantum dot luminous device disposed therein, and the quantum dot luminous devices in each of the pixel units are disposed on the same side of the substrate, and are farther from the substrate than the first self-luminous devices and the second self-luminous devices.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, each of the sub-pixel regions has two quantum dot luminous devices having the same luminous color disposed therein, the two quantum dot luminous devices are disposed on opposite sides of the substrate respectively, and the quantum dot luminous devices are farther from the substrate than the first self-luminous devices and/or the second self-luminous devices.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, the first self-luminous devices in the multiple pixel units are located on one side of the substrate and the second self-luminous devices in the multiple pixel units are located on the other side of the substrate.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, each of the pixel units further comprises an optical filter layer disposed on one side, which is far away from the substrate, of each of the quantum dot luminous devices and configured to filter light emitted by the first self-luminous devices.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, a wavelength of light emitted by the first self-luminous devices is less than that of all the quantum dot luminous devices.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, the first self-luminous devices are Organic Light Emitting Diodes (OLED) or Light Emitting Diodes (LED) that emit blue light, and the quantum dot luminous devices comprise quantum dot luminous devices that emit red light and quantum dot luminous devices that emit green light.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, the first self-luminous devices are OLEDs or LEDs that emit ultraviolet light, and the quantum dot luminous devices comprise quantum dot luminous devices that emit red light, quantum dot luminous device that emit green light and quantum dot luminous devices that emit blue light.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, a wavelength of light emitted by the second self-luminous devices is greater than that of at least one of the quantum dot luminous devices.
In a possible implementation, in the display panel according to the embodiments of the present disclosure, the second self-luminous devices are OLEDs or LEDs that emit yellow light.
The embodiments of the present disclosure further provide a method for driving the display panel described above, comprising: during a display period of one frame, driving the first self-luminous devices in the sub-pixel regions to be in a turn-on state and the second self-luminous devices in the sub-pixel regions to be in a turn-off state; and during an interference period of one frame, driving the second self-luminous devices in a part of the sub-pixel regions to be in a turn-on state.
The embodiments of the present disclosure further provide an anti-peeping system, comprising: the display panel according to the embodiments described above; and shutter glasses having lenses configured to be in a light-transmission state during a display period of one frame and be in a light-shielding state during an interference period of one frame.
The embodiments of the present disclosure provide a display panel, a method for driving the same, and an anti-peeping system. The display panel comprises a substrate; and multiple pixel units arranged on the substrate in an array, each of the pixel units comprising first self-luminous devices, second self-luminous devices, and quantum dot luminous devices, wherein the first self-luminous devices and the second self-luminous devices are stacked in various sub-pixel regions, the quantum dot luminous devices are disposed in at least two sub-pixel regions, and quantum dot luminous devices disposed in different sub-pixel regions have different luminous colors, wherein the first self-luminous devices are configured to excite the quantum dot luminous devices to emit light during a display period of one frame to display a normal picture, and the second self-luminous devices are configured to be in a turn-off state during the display period of one frame and excite quantum dot luminous devices within a part of the sub-pixel regions to emit light during an interference period of one frame to display an interference picture. A viewer who wears corresponding shutter glasses may filter out the interference picture to view the normal picture, a picture viewed by a peeper who does not wear the shutter glasses is a superimposed picture of the normal picture and the interference picture, and thereby the peeper cannot view important information displayed by the display panel, thus realizing an anti-peeping function of the display apparatus.
In view of the problem in the related art that the display device cannot effectively realize anti-peeping, the embodiments of the present disclosure provide a display panel, a method for driving the same, and an anti-peeping system.
Specific implementations of the display panel and the anti-peeping system according to the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Thicknesses and shapes of various components do not reflect true scales in the accompanying drawings and are only intended to be illustration of the present disclosure.
The embodiments of the present disclosure provide a display panel, as shown in
The first self-luminous devices 101 are configured to excite the quantum dot luminous devices 103 to emit light during a display period of one frame to display a normal picture. The second self-luminous devices 102 are configured to be in a turn-off state during the display period of one frame and excite quantum dot luminous devices 103 within a part of the sub-pixel regions 201 to emit light during an interference period of one frame to display an interference picture.
In the display panel according to the embodiments of the present disclosure, the first self-luminous devices 101 emit light and the second self-luminous devices 102 are in a turn-off state during the display period of one frame to display a normal picture, and the second self-luminous devices 102 emit light during the interference period of one frame to display an interference picture. A viewer who wears corresponding shutter glasses may filter out the interference picture to view the normal picture, a picture viewed by a peeper who does not wear the shutter glasses is a superimposed picture of the normal picture and the interference picture, and thereby the peeper cannot view important information displayed by the display panel, thus realizing an anti-peeping function of the display panel.
During a display time of one frame, the normal picture and the interference picture are alternately displayed. As shown in
In a specific implementation, during the interference period of one frame, the first self-luminous devices 101 may be in a turn-off state, so that power consumption of the display panel can be saved, or the first self-luminous devices 101 may be configured to be always in a turn-on state, so that there is no need to control the first self-luminous devices 101 to be continuously turned on and turned off, which not only can simplify the control process, but also can prolong the lifetime of the first self-luminous devices 101. States of the first self-luminous devices 101 during the interference period are not limited here. In addition, two pixel units 200 are taken as an example for illustration in
In practical applications, the above display panel according to the embodiments of the present disclosure can realize single-sided anti-peeping display. As shown in
Various first self-luminous devices 101 and various second self-luminous devices 102 are unidirectional self-luminous devices facing the quantum dot luminous devices 103.
Various quantum dot luminous devices 103 are disposed on the outer sides of the first self-luminous devices 101 and the second self-luminous devices 102 with respect to the substrate and are located on the same side of the substrate 100. During a display period of one frame, the first self-luminous devices 101 excite the quantum dot luminous devices 103 in various sub-pixel regions 201 to emit light, so as to display a normal picture. During an interference period of one frame, the second self-luminous devices 102 excite quantum dot luminous devices 103 in a part of the sub-pixel regions 201 to emit light, so as to display an interference picture. That is, the first self-luminous devices 101 and the second self-luminous devices 102 share the quantum dot luminous devices 103.
In addition, various first self-luminous devices 101 and various second self-luminous devices 102 are also required to be provided as unidirectional self-luminous devices facing the quantum dot luminous devices 103. In the structures shown in
In practical applications, the above display panel according to the embodiments of the present disclosure can also realize double-sided anti-peeping display. As shown in
Various first self-luminous devices 101 and various second self-luminous devices 102 are transparent self-luminous devices which emit light bi-directionally.
Two quantum dot luminous devices 103 are disposed in the sub-pixel region 201, are located on opposite sides of the substrate 100 respectively and have the same luminous color. Various quantum dot luminous devices 103 are located on outer sides of the first self-luminous devices 101 and the second self-luminous devices 102 with respect to the substrate 100 respectively. During the display period of one frame, the first self-luminous devices 101 excite quantum dot luminous devices 103 in various sub-pixel regions 201 which are located on outer sides of the first self-luminous devices 101 with respect to the substrate 100, so as to display a normal picture. During the interference period of one frame, the second self-luminous devices 102 excite quantum dot luminous devices 103 in a part of the sub-pixel regions 201 which are located on outer sides of the second self-luminous devices 102 with respect to the substrate 100, so as to display an interference picture. That is, the first self-luminous devices 101 and the second self-luminous devices 102 do not share the quantum dot luminous devices 103.
In addition, various first self-luminous devices 101 and various second self-luminous devices 102 are also required to be provided as transparent self-luminous devices which emit light bi-directionally. In the structures shown in
In a specific implementation, in the above display panel according to the embodiments of the present disclosure, various first self-luminous devices 101 are preferably located on the same side of the substrate 100, and various second self-luminous devices 102 are preferably located on the other side of the substrate 100, as shown in
In a specific implementation, in the above display panel according to the embodiments of the present disclosure, each of the pixel units 200 further comprises an optical filter layer 104 disposed on outer sides of the quantum dot luminous devices 103 with respect to the substrate 100, and configured to filter out light emitted by the first self-luminous devices 101.
By taking the structure shown in
As shown in
In a specific implementation, in the above display panel according to the embodiments of the present disclosure, a wavelength of light emitted by the first self-luminous devices 101 is less than that of all the quantum dot luminous devices 103, which may be implemented in two ways.
In a first Implementation, as shown in
As the quantum dot luminous devices 103 comprise quantum dot luminous devices 103 that emit red light and quantum dot luminous devices 103 that emit green light, the first self-luminous devices 101 preferably emit blue light in order to achieve trichromatic display.
By taking
In a second implementation, as shown in
The quantum dot luminous devices 103 comprise quantum dot luminous device 103 that emit red light, quantum dot luminous device 103 that emit green light and quantum dot luminous device 103 that emit blue light, so that each of the quantum dot luminous devices 103 can be excited by light having a wavelength less than that of blue light to achieve trichromatic display. Generally, each of the quantum dot luminous devices 103 is excited by ultraviolet light.
In a specific implementation, in the above display panel according to the embodiments of the present disclosure, a wavelength of light emitted by the second self-luminous devices 102 is greater than that of at least one of the quantum dot luminous devices 103. In this way, the second self-luminous devices 102 may excite the at least one of the quantum dot luminous devices 103 to emit light. Thereby, compared with displaying an interference image using single-color light emitted by the second self-luminous devices 102, a better interference effect is achieved by displaying the interference picture using light in at least two colors.
For the structures shown in
For the structures in
In a specific implementation, in the above display panel according to the embodiments of the present disclosure, the second self-luminous devices 102 are preferably OLEDs or LEDs that emit yellow light.
Based on the same concept, the embodiments of the present disclosure further provide a method for driving the above display panel, which, as shown in
In S101, during a display period of one frame, first self-luminous devices in various sub-pixel regions are driven to be in a turn-on state and second self-luminous devices in the various sub-pixel regions are driven to be in a turn-off state.
In S102, during an interference period of one frame, second self-luminous devices in a part of the various sub-pixel regions are driven to be in a turn-on state.
In the method for driving a display panel according to the embodiments of the present disclosure, the first self-luminous devices in various sub-pixel regions are controlled to be in a turn-on state and the second self-luminous devices in the various sub-pixel regions are controlled to be in a turn-off state during the display period of one frame, and the second self-luminous devices in the various sub-pixel regions are controlled to be turned on randomly, to display a blurred screen as an interference picture. In this way, a viewer who wears corresponding shutter glasses may filter out the interference picture to view the normal picture, a picture viewed by a peeper who does not wear the shutter glasses is a superimposed picture of the normal picture and the interference picture, and thereby the peeper cannot view important information displayed by the display panel, thus realizing an anti-peeping function of the display panel.
In the above step S102, the states of the first self-luminous devices are not limited, that is, the first self-luminous devices may be turned on or turned off during an interference period of one frame. When the first self-luminous devices are in a turn-on state during the interference period of one frame, as the first self-luminous devices are always in a turn-on state, there is no need to control the first self-luminous devices to be turned on and turned off continuously. In this way, not only the control process can be simplified, but also the lifetime of the first self-luminous devices can be prolonged. When the first self-luminous devices are in a turn-off state during the interference period of one frame, the power consumption of the display panel can be saved.
Based on the same concept, the embodiments of the present disclosure provide an anti-peeping system, comprising: the display panel according to the various embodiments described above; and shutter glasses having lenses configured to be in a light-transmission state during a display period of one frame, and in a light-shielding state during an interference period of one frame.
The shutter glasses are controlled to be in a light-transmission state during a display period of one frame and be in a light-shielding state during an interference period of one frame, so as to filter out an interference picture which is displayed by the display panel in the interference period. In this way, a viewer who wears the shutter glasses can view a normal picture displayed by the display panel, a picture viewed by a peeper who does not wear the shutter glasses is a superimposed picture of the normal picture and the interference picture, and thereby the peeper cannot view important information displayed by the display panel, thus realizing an anti-peeping function of the display apparatus.
In the display panel, the method for driving the same, and the anti-peeping system according to the embodiments of the present disclosure, the first self-luminous devices emit light and the second self-luminous devices are in a turn-off state during the display period of one frame, to display the normal picture, and the second self-luminous devices emit light during the interference period of one frame, to display the interference picture. A viewer who wears corresponding shutter glasses may filter out the interference picture to view the normal picture, a picture viewed by a peeper who does not wear the shutter glasses is a superimposed picture of the normal picture and the interference picture, and thereby the peeper cannot view important information displayed by the display panel, thus realizing an anti-peeping function of the display panel.
Obviously, various modifications and variations can be made to the present disclosure by those skilled in the art without departing from the spirit and scope of the present disclosure. In this way, if these modifications and variations of the present disclosure fall within the scope of the claims and the equivalent technologies of the present disclosure, the present disclosure is also intended to include these modifications and variations.
Number | Date | Country | Kind |
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201610614374.1 | Jul 2016 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2017/082197 | 4/27/2017 | WO | 00 |