CN111505850A - Double-sided display panel and control method - Google Patents

Double-sided display panel and control method Download PDF

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Publication number
CN111505850A
CN111505850A CN202010459711.0A CN202010459711A CN111505850A CN 111505850 A CN111505850 A CN 111505850A CN 202010459711 A CN202010459711 A CN 202010459711A CN 111505850 A CN111505850 A CN 111505850A
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display panel
polarizer
pixel
substrate
pixel unit
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CN202010459711.0A
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CN111505850B (en
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吴佳星
张军
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InfoVision Optoelectronics Kunshan Co Ltd
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InfoVision Optoelectronics Kunshan Co Ltd
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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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a control method of a double-sided display panel, which comprises the following steps: providing a double-sided display panel, wherein the double-sided display panel comprises a first display panel, a second display panel and a first light source, and the first light source is arranged between the first display panel and the second display panel; the first display panel is provided with a plurality of first pixel units, and the first pixel units comprise first on pixel units in an on state and first off pixel units in an off state; the second display panel is provided with a plurality of second pixel units, the second pixel units comprise second opening pixel units in an opening state and second closing pixel units in a closing state, and the first pixel units correspond to the second pixel units one to one; and controlling the corresponding relation of the opening and closing of the first pixel unit and the second pixel unit to enable the double-sided display panel to be switched among a first display mode, a second display mode and a third display mode. The invention also discloses a double-sided display panel.

Description

Double-sided display panel and control method
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a double-sided display panel and a control method.
Background
With the development of flat panel Display technologies, Transparent displays (Transparent displays) have been developed. A transparent display means that the display itself has a certain degree of penetration. The user can watch the picture of the transparent display and can also clearly see the background behind the transparent display. Transparent displays are being used in building windows, automobile windows, shop windows, etc., and are therefore gaining market attention.
The conventional transparent display includes a side-in type backlight module composed of a light guide plate and a light source, and a liquid crystal display panel disposed on the light guide plate. The liquid crystal display panel comprises a pixel array substrate, a color filter substrate opposite to the pixel array substrate and a liquid crystal layer positioned between the pixel array substrate and the color filter substrate. Generally, a user often views the transparent display along a direction in which the color filter substrate points to the pixel array substrate, so as to obtain a picture with good display effect. However, such a transparent display is suitable for single-sided viewing, and has limited display variability, for example, when a user views the transparent display along a direction in which the pixel array substrate points to the color filter substrate, the user often cannot obtain a good display effect.
Disclosure of Invention
In order to overcome the disadvantages and shortcomings of the prior art, an object of the present invention is to provide a dual-sided display panel and a control method thereof, so as to solve the problems of the prior art that when the display panel is dual-sided, the display images on both sides of the display panel are different and the dual-sided display effect is poor.
The purpose of the invention is realized by the following technical scheme:
the invention provides a control method of a double-sided display panel, which comprises the following steps:
providing a double-sided display panel, wherein the double-sided display panel comprises a first display panel, a second display panel and a first light source, and the first light source is arranged between the first display panel and the second display panel;
the first display panel comprises a first color film substrate, a first array substrate arranged opposite to the first color film substrate and a first liquid crystal layer arranged between the first color film substrate and the first array substrate, the first display panel is provided with a plurality of first pixel units distributed in an array manner, and the first pixel units comprise first opening pixel units in an opening state and first closing pixel units in a closing state;
the second display panel comprises a second color film substrate, a second array substrate arranged opposite to the second color film substrate and a second liquid crystal layer arranged between the second color film substrate and the second array substrate, a plurality of second pixel units distributed in an array form are arranged on the second display panel, the second pixel units comprise second opening pixel units in an opening state and second closing pixel units in a closing state, and the first pixel units correspond to the second pixel units one by one;
when in a first display mode, controlling the first opening pixel unit to correspond to the second opening pixel unit, and controlling the first closing pixel unit to correspond to the second closing pixel unit;
and in a second display mode, controlling the first opening pixel unit to be positioned at the periphery of the first closing pixel unit, controlling the second opening pixel unit to be positioned at the periphery of the second closing pixel unit, controlling the first opening pixel unit to correspond to the second closing pixel unit, and controlling the second opening pixel unit to correspond to the first closing pixel unit.
Further, in a third display mode, the double-sided display panel is controlled to be divided into a mirror image display area and an independent display area, the first opening pixel unit in the mirror image display area is controlled to correspond to the second opening pixel unit, and the first closing pixel unit in the mirror image display area is controlled to correspond to the second closing pixel unit; the double-sided display panel comprises a single display area, a first opening pixel unit, a second opening pixel unit, a first closing pixel unit, a second closing pixel unit, a first opening pixel unit, a second closing pixel unit, a second opening pixel unit, a first closing pixel unit, a second opening pixel unit, a second closing pixel unit, a double-sided display panel and a double-sided display panel.
Further, the first light source comprises a first backlight and a first light guide plate, the first backlight can emit monochromatic light of red, green and blue, and the red light, the green light and the blue light of the first backlight are controlled to be refreshed once in each frame.
Furthermore, the first light source is a side-in type light source, and the first backlight is disposed on one side edge of the first light guide plate.
Furthermore, the first color film substrate is provided with a first color resist layer, the second color film substrate is provided with a second color resist layer, and the first color resist layer and the second color resist layer respectively comprise a red resist, a green resist and a blue resist.
Furthermore, the first color film substrate is provided with a first black matrix, and the first black matrix is used for spacing the red photoresist, the green photoresist and the blue photoresist in the first color resist layer; the second color film substrate is provided with a first black matrix, and the second black matrix is used for separating the red photoresist, the green photoresist and the blue photoresist in the second color resist layer.
Furthermore, a first polarizer is arranged on the first color film substrate, a second polarizer is arranged on the first array substrate, a third polarizer is arranged on the second color film substrate, a fourth polarizer is arranged on the second array substrate, the transmission axes of the first polarizer and the second polarizer are perpendicular to each other, the transmission axes of the third polarizer and the fourth polarizer are perpendicular to each other, and the transmission axes of the second polarizer and the third polarizer are parallel to each other.
Furthermore, a first polarizer is arranged on the first color film substrate, a second polarizer is arranged on the first array substrate, a third polarizer is arranged on the second color film substrate, a fourth polarizer is arranged on the second array substrate, the transmission axes of the first polarizer and the second polarizer are mutually perpendicular, the transmission axes of the third polarizer and the fourth polarizer are mutually perpendicular, and the transmission axes of the second polarizer and the third polarizer are mutually perpendicular.
Furthermore, the first array substrate and the second array substrate are both arranged in close contact with the first light source, and the first color film substrate and the second color film substrate are both arranged away from the first light source.
The invention also provides a double-sided display panel, which is controlled by the control method of the double-sided display panel.
The invention has the beneficial effects that: a control method of a double-sided display panel includes: providing a double-sided display panel, wherein the double-sided display panel comprises a first display panel, a second display panel and a first light source, and the first light source is arranged between the first display panel and the second display panel; the first display panel is provided with a plurality of first pixel units, and the first pixel units comprise first on pixel units in an on state and first off pixel units in an off state; the second display panel is provided with a plurality of second pixel units, the second pixel units comprise second opening pixel units in an opening state and second closing pixel units in a closing state, and the first pixel units correspond to the second pixel units one to one; and controlling the corresponding relation of the opening and closing of the first pixel unit and the second pixel unit to enable the double-sided display panel to be switched among a first display mode, a second display mode and a third display mode. By controlling the opening and closing corresponding relation of the first pixel unit on the first display panel and the second pixel unit on the second display panel, the double-sided display panel is suitable for various application scenes, and the problems of difference of display pictures at two sides of the display panel and poor double-sided display effect are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a dual-sided display panel according to a first embodiment of the invention;
FIG. 2 is a schematic structural diagram of a dual-sided display panel in a first display mode according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a dual-sided display panel in a second display mode according to an embodiment of the invention;
FIG. 4 is a schematic plan view illustrating a first display panel of a dual-sided display panel in a second display mode according to an embodiment of the invention;
FIG. 5 is a schematic plan view illustrating a second display panel of the dual-sided display panel in the second display mode according to the first embodiment of the invention;
FIG. 6 is a schematic structural diagram of a dual-sided display panel in a third display mode according to an embodiment of the invention;
FIG. 7 is a schematic plan view illustrating a first display panel of a dual-sided display panel in a third display mode according to an embodiment of the invention;
FIG. 8 is a schematic plan view illustrating a second display panel of the dual-sided display panel in a third display mode according to the first embodiment of the invention;
FIG. 9 is a schematic signal waveform of a first light source according to an embodiment of the invention;
FIG. 10 is a schematic structural diagram of a dual-sided display panel according to a second embodiment of the present invention;
fig. 11 is a schematic structural diagram of a dual-sided display panel according to a third embodiment of the invention;
fig. 12 is a schematic structural diagram of a dual-sided display panel according to a third embodiment of the invention;
fig. 13 is a schematic diagram of signal waveforms of the second light source and the third light source in the fourth display mode according to the third embodiment of the present invention;
fig. 14 is a schematic signal waveform diagram of the second light source and the third light source in the fifth display mode according to the third embodiment of the present invention;
fig. 15 is a schematic structural diagram of a dual-sided display panel according to a fourth embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the dual-sided display panel and the control method according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:
[ example one ]
Fig. 1 is a schematic structural diagram of a dual-sided display panel according to a first embodiment of the present invention, fig. 2 is a schematic structural diagram of a dual-sided display panel according to a first embodiment of the present invention in a first display mode, fig. 3 is a schematic structural diagram of a dual-sided display panel according to a first embodiment of the present invention in a second display mode, fig. 4 is a schematic planar structural diagram of a first display panel according to a first embodiment of the present invention in the second display mode, and fig. 5 is a schematic planar structural diagram of a second display panel according to a first embodiment of the present invention in the second display mode.
As shown in fig. 1 to fig. 5, a method for controlling a dual-sided display panel according to a first embodiment of the present invention includes:
providing a dual-sided display panel, as shown in fig. 1, the dual-sided display panel includes a first display panel 10, a second display panel 20 and a first light source 30, the first light source 30 is disposed between the first display panel 10 and the second display panel 20;
the first display panel 10 includes a first color film substrate 11, a first array substrate 12 disposed opposite to the first color film substrate 11, and a first liquid crystal layer 13 disposed between the first color film substrate 11 and the first array substrate 12, the first display panel 10 has a plurality of first pixel units P1 (shown in fig. 4) distributed in an array, and the first pixel unit P1 includes a first on pixel unit P11 in an on state and a first off pixel unit P12 in an off state. The first liquid crystal layer 13 is a positive liquid crystal molecule, i.e., a liquid crystal molecule having positive dielectric anisotropy. In the initial state, as shown in fig. 1, the first liquid crystal layer 13 is in a lying posture, that is, the positive liquid crystal molecules in the first liquid crystal layer 13 are aligned parallel to the first color film substrate 11 and the first array substrate 12, and the alignment directions of the positive liquid crystal molecules near the first color film substrate 11 and the positive liquid crystal molecules near the first array substrate 12 are antiparallel.
The second display panel 20 includes a second color film substrate 21, a second array substrate 22 disposed opposite to the second color film substrate 21, and a second liquid crystal layer 23 disposed between the second color film substrate 21 and the second array substrate 22, the second display panel 20 has a plurality of second pixel units P2 (as shown in fig. 5) distributed in an array, the second pixel unit P2 includes a second on pixel unit P21 in an on state and a second off pixel unit P22 in an off state, and the first pixel units P1 and the second pixel units P2 are in one-to-one correspondence. Here, the second liquid crystal layer 23 is a positive liquid crystal molecule, that is, a liquid crystal molecule having positive dielectric anisotropy. In the initial state, as shown in fig. 1, the second liquid crystal layer 23 is in a lying posture, that is, the positive liquid crystal molecules in the second liquid crystal layer 23 are aligned parallel to the second color filter substrate 21 and the second array substrate 22, and the alignment directions of the positive liquid crystal molecules near the second color filter substrate 21 and the positive liquid crystal molecules near the second array substrate 22 are antiparallel.
As shown in fig. 2, in the first display mode, the first on pixel cell P11 is controlled to correspond to the second on pixel cell P21, and the first off pixel cell P12 is controlled to correspond to the second off pixel cell P22. Preferably, the brightness of the corresponding first open pixel cell P11 and second open pixel cell P21 is the same, and the two sides of the dual-sided display panel display the same pictures, i.e. the first display panel 10 and the second display panel 20 display the mirror images, this mode is suitable for the display of non-text full pictures and advertisement display;
as shown in fig. 3 to 5, in the second display mode, the first on pixel cell P11 is controlled to be located around the first off pixel cell P12, the second on pixel cell P21 is controlled to be located around the second off pixel cell P22, the first on pixel cell P11 is controlled to correspond to the second off pixel cell P22, and the second on pixel cell P21 is controlled to correspond to the first off pixel cell P12. At this time, the resolution of the first display panel 10 and the second display panel 20 is reduced to half of the original resolution, the pixel units at the same positions of the first display panel and the second display panel are mutually blocked, the non-transparent mode is realized, the light supply system is shielded at different positions on two sides, the two sides are completely different to display due to the reduction of the resolution, and the first display panel 10 and the second display panel 20 are both independently displayed and do not interfere with each other. This mode is suitable for full text non-picture display or the display requirements of the first display panel 10 and the second display panel 20 are completely different.
Fig. 6 is a schematic structural diagram of a dual-sided display panel in a third display mode according to a first embodiment of the present invention, fig. 7 is a schematic plan structural diagram of a first display panel in the third display mode according to the first embodiment of the present invention, fig. 8 is a schematic plan structural diagram of a second display panel in the third display mode according to the first embodiment of the present invention, and fig. 9 is a schematic signal waveform of a first light source according to the first embodiment of the present invention.
As shown in fig. 6 to 9, in the third display mode (hybrid display mode), the control dual display panel is divided into a mirror image display region and a separate display region, the first on pixel cell P11 in the mirror image display region is controlled to correspond to the second on pixel cell P21, and the first off pixel cell P12 in the mirror image display region is controlled to correspond to the second off pixel cell P22; the first on pixel cell P11 in the single display area is controlled to be arranged around the first off pixel cell P12, the second on pixel cell P21 in the single display area is controlled to be arranged around the second off pixel cell P22, the first on pixel cell P11 in the single display area is controlled to correspond to the second off pixel cell P22, and the second on pixel cell P21 in the single display area is controlled to correspond to the first off pixel cell P12. Namely, the third display mode is a combination of the first display mode and the second display mode. The first display panel 10 and the second display panel 20 display the same portion of the screen (text is mixed with the picture), and at this time, the mixed display mode is turned on, the same portion and the different portion are recognized by the system, the same portion turns on the mirror image display mode, and the different portion turns on the separate display mode.
By controlling the on and off corresponding relationship between the first pixel unit P1 on the first display panel 10 and the second pixel unit P2 on the second display panel 20, the dual-sided display panel can be switched between the first display mode, the second display mode and the third display mode, so that the dual-sided display panel is applicable to various application scenarios, and the problems of difference of display pictures at two sides of the display panel and poor dual-sided display effect are avoided.
The first array substrate 12 is provided with a plurality of scan lines and a plurality of data lines, which are insulated from each other and crossed to define a plurality of first pixel units P1. Each first pixel unit P1 has a first pixel electrode 122 and a thin film transistor therein, and the first pixel electrode 122 is electrically connected to the scan line and the data line of the adjacent thin film transistor through the thin film transistor. The first color filter substrate 11 is provided with a first black matrix 111 corresponding to the plurality of scanning lines and the plurality of data lines, and the first black matrix 111 is located on one side of the first color filter substrate 11 facing the first liquid crystal layer 13. A flat layer covering the first black matrix 111 is further disposed on a side of the first color filter substrate 11 facing the first liquid crystal layer 13. The thin film transistor includes a gate electrode, an active layer, a drain electrode, and a source electrode, the gate electrode and the scan line are located on the same layer and electrically connected, the gate electrode and the active layer are isolated by an insulating layer, the source electrode and the data line are electrically connected, and the drain electrode and the first pixel electrode 122 are electrically connected through a contact hole.
In this embodiment, a first common electrode 121 is further disposed on a side of the first array substrate 12 facing the first liquid crystal layer 13, and the first common electrode 121 and the first pixel electrode 122 are located on different layers and insulated and isolated by an insulating layer. The first common electrode 121 may be located above or below the first pixel electrode 122 (the first common electrode 121 is located below the first pixel electrode 122 in fig. 1). Preferably, the first common electrode 121 is a planar electrode disposed over the entire surface, and the first pixel electrode 122 is a block electrode disposed in one block in each of the first pixel units P1 or a slit electrode having a plurality of electrode bars to form a Fringe Field Switching (FFS) mode. Of course, In other embodiments, the first pixel electrode 122 and the first common electrode 121 are located on the same layer, but are insulated and isolated from each other, each of the first pixel electrode 122 and the first common electrode 121 may include a plurality of electrode stripes, and the electrode stripes of the first pixel electrode 122 and the electrode stripes of the first common electrode 121 are alternately arranged to form an In-Plane Switching (IPS) mode; alternatively, in other embodiments, the first array substrate 12 is provided with the first pixel electrode 122 on a side facing the first liquid crystal layer 13, and the first color film substrate 11 is provided with the first common electrode 121 on a side facing the first liquid crystal layer 13, so as to form a TN mode or a VA mode, and as for other descriptions of the TN mode and the VA mode, please refer to the prior art, which is not repeated herein.
Further, the first common electrode 121 is used for applying a dc common voltage, the first pixel electrode 122 applies a corresponding gray scale voltage, a voltage difference is formed between the first pixel electrode 122 and the first common electrode 121 to generate a horizontal electric field, so that the positive liquid crystal molecules are deflected in a direction parallel to the horizontal electric field in the horizontal direction, the gray scale voltage includes 0-255 gray scale voltages, when different gray scale voltages are applied to the first pixel electrode 122, the first pixel unit P1 exhibits different brightness, thereby forming a first on pixel unit P11 and a first off pixel unit P12, and when a voltage of 0 gray scale voltage or no voltage is applied to the first pixel electrode 122 corresponding to the first off pixel unit P12, thereby displaying different images.
The second array substrate 22 is provided with a plurality of scan lines and a plurality of data lines, which are insulated from each other and crossed to define a plurality of second pixel units P2. Each second pixel unit P2 has a second pixel electrode 222 and a thin film transistor therein, and the second pixel electrode 222 is electrically connected to the scan line and the data line of the adjacent thin film transistor through the thin film transistor. The second color filter substrate 21 is provided with a second black matrix 211 corresponding to the plurality of scanning lines and the plurality of data lines, and the second black matrix 211 is located on one side of the second color filter substrate 21 facing the second liquid crystal layer 23. A flat layer covering the second black matrix 211 is further disposed on a side of the second color filter substrate 21 facing the second liquid crystal layer 23. The thin film transistor includes a gate electrode, an active layer, a drain electrode, and a source electrode, the gate electrode and the scan line are located on the same layer and electrically connected, the gate electrode and the active layer are isolated by an insulating layer, the source electrode and the data line are electrically connected, and the drain electrode and the second pixel electrode 222 are electrically connected through a contact hole.
In this embodiment, a second common electrode 221 is further disposed on a side of the second array substrate 22 facing the second liquid crystal layer 23, and the second common electrode 221 and the second pixel electrode 222 are located at different layers and insulated and isolated by an insulating layer. The second common electrode 221 may be located above or below the second pixel electrode 222 (the second common electrode 221 is located above the second pixel electrode 222 in fig. 1). Preferably, the second common electrode 221 is a planar electrode disposed over the entire surface, and the second pixel electrode 222 is a block electrode disposed in one block in each of the second pixel units P2 or a slit electrode having a plurality of electrode bars to form a Fringe Field Switching (FFS) mode. Of course, In other embodiments, the second pixel electrode 222 and the second common electrode 221 are located on the same layer, but are insulated and isolated from each other, each of the second pixel electrode 222 and the second common electrode 221 may include a plurality of electrode stripes, and the electrode stripes of the second pixel electrode 222 and the electrode stripes of the second common electrode 221 are alternately arranged to form an In-Plane Switching (IPS) mode; alternatively, in other embodiments, the second array substrate 22 is provided with a second pixel electrode 222 on a side facing the second liquid crystal layer 23, and the second color film substrate 21 is provided with a second common electrode 221 on a side facing the second liquid crystal layer 23, so as to form a TN mode or a VA mode.
Further, the second common electrode 221 is used for applying a dc common voltage, the second pixel electrode 222 applies a corresponding gray scale voltage, a voltage difference is formed between the second pixel electrode 222 and the second common electrode 221 and a horizontal electric field is generated, so that the positive liquid crystal molecules are deflected in a direction parallel to the horizontal electric field in the horizontal direction, the gray scale voltage includes 0-255 gray scale voltages, when different gray scale voltages are applied to the second pixel electrode 222, the second pixel unit P2 exhibits different brightness, thereby forming a second on pixel unit P21 and a second off pixel unit P22, and when a voltage of 0 gray scale voltage or no voltage is applied to the second pixel electrode 222 corresponding to the second off pixel unit P22, thereby displaying different images.
In this embodiment, the first display panel 10 and the second display panel 20 are both Fringe Field Switching (FFS), but In other embodiments, the first display panel 10 and the second display panel 20 may also be In-Plane Switching (IPS), TN, or VA modes, the architecture modes of the first display panel 10 and the second display panel 20 may be combined with each other, and the architecture modes of the first display panel 10 and the second display panel 20 may be the same or different. For example, the first display panel 10 may be in an FFS mode, and the second display panel 20 may be in a TN mode, which is not described herein.
In this embodiment, the first light source 30 includes a first backlight 31 and a first light guide plate 32, the first backlight 31 can emit monochromatic light of red, green, and blue, and the red light, the green light, and the blue light of the first backlight 31 are controlled to be refreshed once in each frame. I.e. the first light source 30 is a field sequential backlight. As shown in fig. 9, the first backlight 31 needs to be refreshed three times in each frame, and the red light, the green light, and the blue light are refreshed once respectively, so that color-resist materials do not need to be disposed on the first color film substrate 11 and the second color film substrate 21. The first backlight 31 may refresh red light, green light, and blue light in this order, the first backlight 31 may refresh green light, red light, and blue light in this order, and the order of refreshing green light, red light, and blue light may be arbitrarily combined, but is not limited thereto.
In this embodiment, a first polarizer 41 is disposed on the first color film substrate 11, a second polarizer 42 is disposed on the first array substrate 12, a third polarizer 43 is disposed on the second color film substrate 21, a fourth polarizer 44 is disposed on the second array substrate 22, transmission axes of the first polarizer 41 and the second polarizer 42 are perpendicular to each other, transmission axes of the third polarizer 43 and the fourth polarizer 44 are perpendicular to each other, and transmission axes of the second polarizer 42 and the third polarizer 43 are parallel to each other. The first polarizer 41 is disposed on a side of the first color filter substrate 11 away from the first liquid crystal layer 13, the second polarizer 42 is disposed on a side of the first array substrate 12 away from the first liquid crystal layer 13, the third polarizer 43 is disposed on a side of the second color filter substrate 21 away from the second liquid crystal layer 23, the fourth polarizer 44 is disposed on a side of the second array substrate 22 away from the second liquid crystal layer 23, and the first light guide plate 32 is disposed between the second polarizer 42 and the third polarizer 43. By making the transmission axes of the second polarizer 42 and the third polarizer 43 parallel to each other, the double-sided display panel has a transmissive effect in the first display mode, and the double-sided display panel is suitable for shop window glass, and can see the external environment through the double-sided display panel in a high-brightness environment or in a case where the brightness of the first light source 30 is reduced.
In other embodiments, the first color filter substrate 11 is provided with a first polarizer 41, the first array substrate 12 is provided with a second polarizer 42, the second color filter substrate 21 is provided with a third polarizer 43, the second array substrate 22 is provided with a fourth polarizer 44, transmission axes of the first polarizer 41 and the second polarizer 42 are perpendicular to each other, transmission axes of the third polarizer 43 and the fourth polarizer 44 are perpendicular to each other, and transmission axes of the second polarizer 42 and the third polarizer 43 may be perpendicular to each other. By making the transmission axes of the second polarizer 42 and the third polarizer 43 perpendicular to each other, the dual-sided display panel is prevented from generating transmission effect in the first display mode, and the interference of the external environment on the display of the first display panel 10 and the second display panel 20 is prevented.
In this embodiment, the first array substrate 12 and the second array substrate 22 are both disposed close to the first light source 30, and the first color filter substrate 11 and the second color filter substrate 21 are both disposed away from the first light source 30.
The first color film substrate 11, the first array substrate 12, the second color film substrate 21 and the second array substrate 22 may be made of glass, acrylic, polycarbonate and other materials. The material of the first common electrode 121, the first pixel electrode 122, the second common electrode 221, and the second pixel electrode 222 may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), or the like.
[ example two ]
Fig. 10 is a schematic structural diagram of a dual-sided display panel according to a second embodiment of the invention. As shown in fig. 10, a control method of a dual-sided display panel according to a second embodiment of the present invention is substantially the same as the control method of the dual-sided display panel according to the first embodiment (fig. 1 to 9), except that in this embodiment, the first color filter substrate 11 is provided with the first color resist layer 112, the second color filter substrate 21 is provided with the second color resist layer 212, and the first color resist layer 112 and the second color resist layer 212 both include a red resist, a green resist, and a blue resist. The red, green, and blue photoresists in the first photoresist layer 112 are separated by the first black matrix 111, and the red, green, and blue photoresists in the second photoresist layer 212 are separated by the second black matrix 211. Since the color resists are disposed on both the first color filter substrate 11 and the second color filter substrate 21, the first light source 30 can be a common white light source without a field sequential light source.
In this embodiment, a first polarizer 41 is disposed on the first color film substrate 11, a second polarizer 42 is disposed on the first array substrate 12, a third polarizer 43 is disposed on the second color film substrate 21, a fourth polarizer 44 is disposed on the second array substrate 22, transmission axes of the first polarizer 41 and the second polarizer 42 are perpendicular to each other, transmission axes of the third polarizer 43 and the fourth polarizer 44 are perpendicular to each other, and transmission axes of the second polarizer 42 and the third polarizer 43 are perpendicular to each other. By making the transmission axes of the second polarizer 42 and the third polarizer 43 perpendicular to each other, the dual-sided display panel is prevented from generating transmission effect in the first display mode, and the interference of the external environment on the display of the first display panel 10 and the second display panel 20 is prevented.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ third example ]
Fig. 11 is a schematic structural diagram of a dual-sided display panel according to a third embodiment of the present invention, fig. 12 is a schematic structural diagram of a dual-sided display panel according to the third embodiment of the present invention when displaying, fig. 13 is a schematic signal waveform diagram of a second light source and a third light source according to the third embodiment of the present invention when in a fourth display mode, and fig. 14 is a schematic signal waveform diagram of a second light source and a third light source according to the third embodiment of the present invention when in a fifth display mode. As shown in fig. 11 to 14, a dual-sided display panel according to a third embodiment of the present invention includes a third display panel 50, a second light source 60, a third light source 70, a first selective reflective film 81 and a second selective reflective film 82, the third display panel 50 is disposed between the second light source 60 and the third light source 70, the first selective reflective film 81 is disposed on a side of the second light source 60 away from the third display panel 50, the second selective reflective film 82 is disposed on a side of the third light source 70 away from the third display panel 50, the first selective reflective film 81 and the second selective reflective film 82 are both capable of selectively reflecting or projecting light, a reflective axis of the first selective reflective film 81 is parallel to a reflective axis of the second selective reflective film 82, the second light source 60 and the third light source 70 are both capable of emitting linearly polarized light, and a polarization direction of the linearly polarized light is parallel to the reflective axis of the first selective reflective film 81, The reflection axes of the second selective reflection films 82 are parallel to each other. The first selective reflection film 81 and the second selective reflection film 82 are, for example, metal wire grid polarizers, which can reflect light parallel to the metal wire grid and transmit light perpendicular to the metal wire grid, and the reflection axis and the transmission axis of the selective reflection film are perpendicular to each other.
By arranging the second light source 60 and the third light source 70 as light sources capable of emitting linearly polarized light, and the emitted linearly polarized light is parallel to the reflection axis of the first selective reflection film 81 and the reflection axis of the second selective reflection film 82, when the third liquid crystal layer 53 in the third display panel 50 is not deflected, the linearly polarized light emitted by the second light source 60 and the third light source 70 is reflected back and forth between the first selective reflection film 81 and the second selective reflection film 82, and when the third liquid crystal layer 53 in the third display panel 50 is deflected, the linearly polarized light emitted by the second light source 60 and the third light source 70 can be emitted from both sides of the third display panel 50, so that the utilization rate of the light sources is improved, and the display effect of the third display panel 50 is increased.
The third display panel 50 includes a third color film substrate 51, a third array substrate 52 disposed opposite to the third color film substrate 51, and a third liquid crystal layer 53 disposed between the third color film substrate 51 and the third array substrate 52. Among them, the third liquid crystal layer 53 is a positive liquid crystal molecule, that is, a liquid crystal molecule whose dielectric anisotropy is positive. In the initial state, as shown in fig. 11, the third liquid crystal layer 53 is in a lying posture, that is, the positive liquid crystal molecules in the third liquid crystal layer 53 are aligned parallel to the third color film substrate 51 and the third array substrate 52, and the alignment direction of the positive liquid crystal molecules on the side close to the third color film substrate 51 is reverse-even to that of the positive liquid crystal molecules on the side close to the third array substrate 52.
The third array substrate 52 is provided with a plurality of scan lines and a plurality of data lines, which are insulated from each other and crossed to define a plurality of pixel units. Each pixel unit is provided with a third pixel electrode 522 and a thin film transistor, and the third pixel electrode 522 is electrically connected with the scan line and the data line of the adjacent thin film transistor through the thin film transistor. The third color film substrate 51 is provided with a third black matrix 511 corresponding to the plurality of scanning lines and the plurality of data lines, and the third black matrix 511 is located on one side of the third color film substrate 51 facing the third liquid crystal layer 53. The third color film substrate 51 is further provided with a planarization layer covering the third black matrix 511 on a side facing the third liquid crystal layer 53. The thin film transistor includes a gate electrode, an active layer, a drain electrode, and a source electrode, the gate electrode and the scan line are located in the same layer and electrically connected, the gate electrode and the active layer are isolated by an insulating layer, the source electrode and the data line are electrically connected, and the drain electrode and the third pixel electrode 522 are electrically connected through a contact hole.
In this embodiment, a third common electrode 521 is further disposed on a side of the third array substrate 52 facing the third liquid crystal layer 53, and the third common electrode 521 and the third pixel electrode 522 are located in different layers and are insulated and isolated by an insulating layer. The third common electrode 521 may be positioned above or below the third pixel electrode 522 (the third common electrode 521 is positioned below the third pixel electrode 522 in fig. 1). Preferably, the third common electrode 521 is a planar electrode disposed over the entire surface, and the third pixel electrode 522 is a block electrode disposed in one block in each pixel unit or a slit electrode having a plurality of electrode bars to form a Fringe Field Switching (FFS) mode. Of course, In other embodiments, the third pixel electrode 522 and the third common electrode 521 are located on the same layer, but are insulated and isolated from each other, each of the third pixel electrode 522 and the third common electrode 521 may include a plurality of electrode stripes, and the electrode stripes of the third pixel electrode 522 and the electrode stripes of the third common electrode 521 are alternately arranged to form an In-Plane Switching (IPS) mode; alternatively, in other embodiments, the third array substrate 52 is provided with a third pixel electrode 522 on a side facing the third liquid crystal layer 53, and the third color film substrate 51 is provided with a third common electrode 521 on a side facing the third liquid crystal layer 53, so as to form a TN mode or a VA mode.
Further, the third common electrode 521 is used for applying a dc common voltage, the third pixel electrode 522 is used for applying a corresponding grayscale voltage, a voltage difference is formed between the third pixel electrode 522 and the third common electrode 521 to generate a horizontal electric field, so that the positive liquid crystal molecules are deflected in a direction parallel to the horizontal electric field in the horizontal direction, a part of the linearly polarized light emitted by the second light source 60 directly passes through the third liquid crystal layer 53 to become circularly polarized light, and then is emitted from the lower side of the third display panel 50, and another part of the linearly polarized light emitted by the second light source 60 is reflected by the first selective reflection film 81, passes through the third liquid crystal layer 53 to become circularly polarized light, and then is emitted from the lower side of the third display panel 50, thereby improving the utilization rate of the second light source 60; part of the linearly polarized light emitted from the third light source 70 directly passes through the third liquid crystal layer 53 to become circularly polarized light, and then is emitted from the upper side of the third display panel 50, and the other part of the linearly polarized light emitted from the third light source 70 passes through the third liquid crystal layer 53 after being reflected by the second selective reflection film 82 to become circularly polarized light, and then is emitted from the upper side of the third display panel 50, so that the utilization rate of the third light source 70 is improved. The gray scale voltages include 0-255 gray scale voltages, and when the third pixel electrode 522 applies different gray scale voltages, the corresponding pixel units show different brightness, thereby displaying different pictures. When the third display panel 50 is turned on and off, the dual-sided display panel has a transmissive effect, and in a high-luminance environment or when the luminance of the second light source 60 and the third light source 70 is reduced, the external environment can be seen through the dual-sided display panel, and when the third display panel 50 is not used, the third display panel 50 is in a completely transparent state, and can be used as a transparent glass.
In this embodiment, the second light source 60 includes a second backlight 61 and a second light guide plate 62, the third light source 70 includes a third backlight 71 and a third light guide plate 72, the second backlight 61 and the third backlight 71 can emit monochromatic light of red, green, and blue, the red light, the green light, and the blue light of the second backlight 61 are refreshed once in each frame, and the red light, the green light, and the blue light of the third backlight 71 are refreshed once in each frame. That is, the second light source 60 and the third light source 70 are field sequential backlights, and the second backlight 61 and the third backlight 71 need to be refreshed three times in each frame, and refreshed once for each of red light, green light, and blue light. Therefore, color resistance materials do not need to be arranged on the first color film substrate 11 and the second color film substrate 21. The second backlight 61 may refresh red light, green light, and blue light in this order, the second backlight 61 may refresh green light, red light, and blue light in this order, and the order of refreshing green light, red light, and blue light may be arbitrarily combined, but is not limited thereto. The third backlight 71 may refresh red light, green light, and blue light in this order, the third backlight 71 may refresh green light, red light, and blue light in this order, the green light, red light, and blue light may be refreshed in any combination, and the order of refreshing the colors of the second backlight 61 and the third backlight 71 may be the same or different, but not limited thereto.
In the fourth display mode, as shown in fig. 13, the second backlight 61 and the third backlight 71 are turned on for the same time and in the same color for each frame, that is, the second backlight 61 and the third backlight 71 are turned on or off for red light, green light, and blue light at the same time, for example, the second backlight 61 refreshes red light, green light, and blue light in sequence, the third backlight 71 refreshes green light, red light, and blue light in sequence, and the second backlight 61 and the third backlight 71 refresh in synchronization. At the moment, the two sides of the double-sided display panel display the same picture, namely the two sides of the double-sided display panel display the picture of mirror image, and the mode is suitable for the display of a non-character full picture and the advertisement display;
in the fifth display mode, as shown in fig. 14, the times of turning on the second backlight 61 and the third backlight 71 are staggered within each frame, for example, when the second backlight 61 is turned on, the third backlight 71 is turned off, and at this time, the lower side of the dual-sided display panel is in a bright state, and a picture can be displayed, while the upper side of the dual-sided display panel is in a black state, and no picture is displayed, when the second backlight 61 is turned off, the third backlight 71 is turned on, and at this time, the upper side of the dual-sided display panel is in a bright state, and a picture can be displayed, while the lower side of the dual-sided display. Preferably, after the red light, the green light, and the blue light of the second backlight 61 are refreshed once, the third backlight 71 is turned on again to refresh the red light, the green light, and the blue light, that is, after the red light, the green light, and the blue light of the second backlight 61 are refreshed in sequence, the green light, the red light, and the blue light of the third backlight 71 are refreshed in sequence. When different pictures are displayed on the two sides of the double-sided display panel, the fifth display mode is started, the second backlight 61 and the third backlight 71 are alternately started, and completely different displays on the two sides of the double-sided display panel are realized by utilizing the time difference. However, the frequency of the one-side screen switching is halved at this time, and the low frequency mode is entered.
The third color filter substrate 51 and the third array substrate 52 may be made of glass, acrylic, polycarbonate, and other materials. The material of the third common electrode 521 and the third pixel electrode 522 may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), or the like.
[ example four ]
Fig. 15 is a schematic structural diagram of a dual-sided display panel according to a fourth embodiment of the invention. As shown in fig. 15, the dual-sided display panel according to the fourth embodiment of the present invention is substantially the same as the dual-sided display panel according to the third embodiment (fig. 11 to 14), except that in the present embodiment, the third color film substrate 51 is provided with a third color resist layer 512, and the third color resist layer 512 includes a red resist, a green resist and a blue resist. The third color-resist layer 512 is spaced apart by the third black matrix 511. Since the third color filter substrate 51 is provided with the color resist layer, light emitted by the second light source 60 and the third light source 70 can pass through the third color resist layer 512, so that the second light source 60 and the third light source 70 can both adopt common white light sources, and a field-sequential light source is not required.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the present embodiment, and are not described herein again.
In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first," "second," and "third," etc., as used herein, are used merely for descriptive purposes and not necessarily for limiting the quantity or order.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A control method of a double-sided display panel is characterized by comprising the following steps:
providing a double-sided display panel, wherein the double-sided display panel comprises a first display panel (10), a second display panel (20) and a first light source (30), and the first light source (30) is arranged between the first display panel (10) and the second display panel (20);
the first display panel (10) comprises a first color film substrate (11), a first array substrate (12) arranged opposite to the first color film substrate (11), and a first liquid crystal layer (13) arranged between the first color film substrate (11) and the first array substrate (12), wherein the first display panel (10) is provided with a plurality of first pixel units (P1) distributed in an array manner, and each first pixel unit (P1) comprises a first opening pixel unit (P11) in an opening state and a first closing pixel unit (P12) in a closing state;
the second display panel (20) comprises a second color film substrate (21), a second array substrate (22) arranged opposite to the second color film substrate (21), and a second liquid crystal layer (23) arranged between the second color film substrate (21) and the second array substrate (22), the second display panel (20) is provided with a plurality of second pixel units (P2) distributed in an array manner, the second pixel units (P2) comprise a second on pixel unit (P21) in an on state and a second off pixel unit (P22) in an off state, and the first pixel units (P1) and the second pixel units (P2) are in one-to-one correspondence;
in a first display mode, controlling the first turned-on pixel cell (P11) to correspond to the second turned-on pixel cell (P21), and controlling the first turned-off pixel cell (P12) to correspond to the second turned-off pixel cell (P22);
in a second display mode, the first on pixel cell (P11) is controlled to be located around the first off pixel cell (P12), the second on pixel cell (P21) is controlled to be located around the second off pixel cell (P22), the first on pixel cell (P11) is controlled to correspond to the second off pixel cell (P22), and the second on pixel cell (P21) is controlled to correspond to the first off pixel cell (P12).
2. The method of claim 1, wherein in a third display mode, the dual-sided display panel is controlled to be divided into a mirror image display region and a separate display region, the first turned-on pixel (P11) in the mirror image display region is controlled to correspond to the second turned-on pixel (P21), and the first turned-off pixel (P12) in the mirror image display region is controlled to correspond to the second turned-off pixel (P22); the first open pixel unit (P11) in the single display area is controlled to be arranged at the periphery of the first closed pixel unit (P12), the second open pixel unit (P21) in the single display area is controlled to be arranged at the periphery of the second closed pixel unit (P22), the first open pixel unit (P11) in the single display area is controlled to correspond to the second closed pixel unit (P22), the second open pixel unit (P21) in the single display area is controlled to correspond to the first closed pixel unit (P12), and the double-sided display panel can be switched among a first display mode, a second display mode and a third display mode.
3. A control method for a dual sided display panel according to claim 1, wherein the first light source (30) comprises a first backlight (31) and a first light guide plate (32), the first backlight (31) is capable of emitting monochromatic light of red, green and blue, and the red, green and blue light of the first backlight (31) are controlled to refresh once each frame.
4. The method as claimed in claim 3, wherein the first light source (30) is a side-in type light source, and the first backlight (31) is disposed on one side of the first light guide plate (32).
5. The method of claim 1, wherein the first color filter substrate (11) has a first color resist layer (112), the second color filter substrate (21) has a second color resist layer (212), and the first color resist layer (112) and the second color resist layer (212) each include a red resist, a green resist, and a blue resist.
6. The method of claim 5, wherein the first color filter substrate (11) has a first black matrix (111), and the first black matrix (111) is used to separate the red photoresist, the green photoresist, and the blue photoresist in the first color resist layer (112); the second color filter substrate (21) is provided with a first black matrix (112), and the second black matrix (211) is used for separating the red photoresist, the green photoresist and the blue photoresist in the second color resist layer (212).
7. The method of claim 1, wherein a first polarizer (41) is disposed on the first color filter substrate (11), a second polarizer (42) is disposed on the first array substrate (12), a third polarizer (43) is disposed on the second color filter substrate (21), a fourth polarizer (44) is disposed on the second array substrate (22), transmission axes of the first polarizer (41) and the second polarizer (42) are perpendicular to each other, transmission axes of the third polarizer (43) and the fourth polarizer (44) are perpendicular to each other, and transmission axes of the second polarizer (42) and the third polarizer (43) are parallel to each other.
8. The method of claim 1, wherein a first polarizer (41) is disposed on the first color filter substrate (11), a second polarizer (42) is disposed on the first array substrate (12), a third polarizer (43) is disposed on the second color filter substrate (21), a fourth polarizer (44) is disposed on the second array substrate (22), transmission axes of the first polarizer (41) and the second polarizer (42) are perpendicular to each other, transmission axes of the third polarizer (43) and the fourth polarizer (44) are perpendicular to each other, and transmission axes of the second polarizer (42) and the third polarizer (43) are perpendicular to each other.
9. A method for controlling a dual-sided display panel according to claim 1, wherein the first array substrate (12) and the second array substrate (22) are disposed close to the first light source (30), and the first color filter substrate (11) and the second color filter substrate (21) are disposed away from the first light source (30).
10. A dual-sided display panel characterized in that it is controlled by the control method of a dual-sided display panel according to any one of claims 1 to 9.
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Cited By (4)

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CN112255851A (en) * 2020-11-09 2021-01-22 湖北长江新型显示产业创新中心有限公司 Liquid crystal module and spatial light modulator
CN112967698A (en) * 2021-03-31 2021-06-15 上海天马微电子有限公司 Liquid crystal panel, driving method thereof and holographic 3D display device
WO2023201819A1 (en) * 2022-04-20 2023-10-26 武汉华星光电技术有限公司 Display apparatus and display method therefor
CN117055266A (en) * 2023-10-12 2023-11-14 惠科股份有限公司 Backlight module, preparation method thereof and liquid crystal display device

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112255851A (en) * 2020-11-09 2021-01-22 湖北长江新型显示产业创新中心有限公司 Liquid crystal module and spatial light modulator
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CN112255851B (en) * 2020-11-09 2024-01-26 湖北长江新型显示产业创新中心有限公司 Liquid crystal module and spatial light modulator
CN112967698A (en) * 2021-03-31 2021-06-15 上海天马微电子有限公司 Liquid crystal panel, driving method thereof and holographic 3D display device
WO2023201819A1 (en) * 2022-04-20 2023-10-26 武汉华星光电技术有限公司 Display apparatus and display method therefor
CN117055266A (en) * 2023-10-12 2023-11-14 惠科股份有限公司 Backlight module, preparation method thereof and liquid crystal display device
CN117055266B (en) * 2023-10-12 2024-02-09 惠科股份有限公司 Backlight module, preparation method thereof and liquid crystal display device

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