CN107272280B - Liquid crystal display panel, display method and display device - Google Patents
Liquid crystal display panel, display method and display device Download PDFInfo
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- CN107272280B CN107272280B CN201710597641.3A CN201710597641A CN107272280B CN 107272280 B CN107272280 B CN 107272280B CN 201710597641 A CN201710597641 A CN 201710597641A CN 107272280 B CN107272280 B CN 107272280B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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Abstract
The invention discloses a liquid crystal display panel, a display method and a display device, comprising the following steps: the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner; and the first electrode is positioned on one side of the opposite substrate facing the liquid crystal layer and corresponds to at least part of the blue color resistance layer. Through the arrangement of the common electrode, the pixel electrode and the first electrode, only voltage is applied to the common electrode and the pixel electrode, when the first electrode is in a floating state, a fringe field is formed between the pixel electrode and the common electrode, so that the liquid crystal display panel can display according to data of a display image, and the display picture is not distorted; when voltage is applied to the common electrode, the pixel electrode and the first electrode, a vertical electric field is formed between the first electrode and the pixel electrode corresponding to the blue pixel, so that the transmittance of blue light can be reduced, the damage of the blue light to eyes is reduced, the aim of protecting eyes is fulfilled, and the liquid crystal display panel has a dual display mode.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel, a display method and a display device.
Background
Liquid Crystal Display panels (LCDs) have many advantages such as thin body, power saving, no radiation, and are widely used, for example: liquid crystal televisions, mobile phones, Personal Digital Assistants (PDAs), digital cameras, computer screens, notebook computer screens, or the like.
The conventional lcd panel is mainly composed of a thin film transistor Array Substrate (TFT Array Substrate), an opposite Substrate, and a Liquid Crystal Layer (Liquid Crystal Layer) disposed between the two substrates, wherein the Array Substrate is provided with a pixel electrode, a data line and a gate line, and the operation principle is to apply a driving voltage to the pixel electrode and the common electrode to control the rotation of Liquid Crystal molecules in the Liquid Crystal Layer, so as to refract light from the backlight module to generate a picture.
The spectrum emitted by the existing liquid crystal display panel contains a large amount of irregular high-energy short-wave blue light, the short-wave blue light has extremely high energy and can penetrate through crystalline lens to reach retina directly, the blue light irradiates on the retina to generate free radicals, the free radicals can cause retina pigment epithelial cells to die, the die of the epithelial cells can cause photosensitive cells to lack nutrients to cause visual damage, and irreversible damage is directly caused to eye nerves. However, in the conventional structure in which the transmittance of the blue pixel is simply reduced, the luminance of the blue pixel is reduced during display, which affects the display quality.
Therefore, how to realize dual-mode display of the lcd panel is an urgent problem to be solved.
Disclosure of Invention
In view of this, embodiments of the present invention provide a liquid crystal display panel, a display method, and a display device, so as to solve the problem that the conventional liquid crystal display panel can only implement a single display mode, and cannot implement switching between a normal display mode and an eye protection display mode, so as to meet the requirements of different users for different modes.
Therefore, an embodiment of the present invention provides a liquid crystal display panel, including: the liquid crystal display panel comprises an opposite substrate, an array substrate and a liquid crystal layer, wherein the opposite substrate and the array substrate are oppositely arranged, and the liquid crystal layer is positioned between the opposite substrate and the array substrate; further comprising:
the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner;
a plurality of color resistance layers arranged between the array substrate and the opposite substrate, wherein the color resistance layers at least comprise a red color resistance layer, a green color resistance layer and a blue color resistance layer;
and the first electrode is positioned on one side of the opposite substrate facing the liquid crystal layer and corresponds to at least part of the blue color resistance layer.
Correspondingly, the display method of the liquid crystal display panel provided by the embodiment of the invention comprises the following steps:
in a first display mode, corresponding voltages are respectively applied to the common electrode and the pixel electrode, and the first electrode is in a floating state;
in a second display mode, corresponding voltages are respectively applied to the common electrode, the pixel electrode and the first electrode, so that a voltage difference exists between the first electrode and the pixel electrode.
Accordingly, the display device provided by the embodiment of the invention comprises the liquid crystal display panel.
The liquid crystal display panel, the display method and the display device provided by the embodiment of the invention comprise the following steps: the liquid crystal display panel comprises an opposite substrate, an array substrate and a liquid crystal layer, wherein the opposite substrate and the array substrate are oppositely arranged, and the liquid crystal layer is positioned between the opposite substrate and the array substrate; the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner; a plurality of color resistance layers arranged between the array substrate and the opposite substrate, wherein the color resistance layers at least comprise a red color resistance layer, a green color resistance layer and a blue color resistance layer; and the first electrode is positioned on one side of the opposite substrate facing the liquid crystal layer and corresponds to at least part of the blue color resistance layer. Through the arrangement of the common electrode, the pixel electrode and the first electrode, only voltage is applied to the common electrode and the pixel electrode, when the first electrode is in a floating state, a fringe field is formed between the pixel electrode and the common electrode, so that the liquid crystal display panel can display according to data of a display image, and the display picture is not distorted; when voltage is applied to the common electrode, the pixel electrode and the first electrode, a vertical electric field is formed between the first electrode and the pixel electrode corresponding to the blue pixel, so that the transmittance of blue light can be reduced, the damage of the blue light to eyes is reduced, the aim of protecting eyes is fulfilled, and the liquid crystal display panel has a dual display mode.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an lcd panel according to an embodiment of the present invention;
fig. 2 is a schematic top view of an lcd panel according to an embodiment of the present invention;
fig. 3 is a schematic top view of another lcd panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a top view structure of another LCD panel according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of another LCD panel according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view illustrating a liquid crystal display panel according to another embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view illustrating a liquid crystal display panel according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a liquid crystal display panel in a first display mode according to an embodiment of the invention;
fig. 9 is a schematic structural diagram of a liquid crystal display panel in a second display mode according to an embodiment of the invention;
fig. 10 is a graph comparing the blue transmittance of the lcd panel in the first display mode and the second display mode according to the embodiment of the invention;
FIG. 11 is a flowchart illustrating a display method of an LCD panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
The following describes in detail specific embodiments of a liquid crystal display panel, a display method, and a display device according to embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, fig. 1 is a schematic cross-sectional structure diagram of a liquid crystal display panel provided in an embodiment of the present invention, including: the liquid crystal display panel comprises an opposite substrate 8 and an array substrate 1 which are oppositely arranged, and a liquid crystal layer 5 positioned between the opposite substrate 8 and the array substrate 1; further comprising:
the pixel electrode 4 and the common electrode 2 are positioned on one side of the array substrate 1 facing the liquid crystal layer 5 and are arranged in an insulated mode;
a plurality of color resist layers 7 are arranged between the array substrate 1 and the opposite substrate 8, and the plurality of color resist layers 7 at least comprise a red color resist layer, a green color resist layer and a blue color resist layer;
and a first electrode 6 corresponding to at least a part of the blue color resist layer and located on the side of the opposite substrate 8 facing the liquid crystal layer 5.
The liquid crystal display panel provided by the embodiment of the invention comprises: the liquid crystal display panel comprises an opposite substrate, an array substrate and a liquid crystal layer, wherein the opposite substrate and the array substrate are oppositely arranged, and the liquid crystal layer is positioned between the opposite substrate and the array substrate; the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner; a plurality of color resistance layers arranged between the array substrate and the opposite substrate, wherein the color resistance layers at least comprise a red color resistance layer, a green color resistance layer and a blue color resistance layer; and the first electrode is positioned on one side of the opposite substrate facing the liquid crystal layer and corresponds to at least part of the blue color resistance layer. Through the arrangement of the common electrode, the pixel electrode and the first electrode, only voltage is applied to the common electrode and the pixel electrode, when the first electrode is in a floating state, a fringe field is formed between the pixel electrode and the common electrode, so that the liquid crystal display panel can display according to data of a display image, and the display picture is not distorted; when voltage is applied to the common electrode, the pixel electrode and the first electrode, a vertical electric field is formed between the first electrode and the pixel electrode corresponding to the blue pixel, so that the transmittance of blue light can be reduced, the damage of the blue light to eyes is reduced, the aim of protecting eyes is fulfilled, and the liquid crystal display panel has a dual display mode.
In particular, in the liquid crystal display panel provided by the embodiment of the invention, the material used for the first electrode is a transparent electrode material, for example, an indium tin oxide material, which is not limited herein.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, each blue color resistance layer is provided with a corresponding first electrode. Each blue color resistance layer is respectively provided with a corresponding first electrode, so that blue light emitted by each blue pixel is weakened to a certain degree, and the condition that the eyes are irreversibly damaged by over-strong blue light is avoided, thereby achieving the purpose of protecting the eyes.
Specifically, in order to facilitate the wiring on the opposite substrate and further advantageously apply a voltage to the first electrode, as shown in fig. 2, fig. 2 is a schematic top view of a liquid crystal display panel according to an embodiment of the present invention, where the liquid crystal display panel according to an embodiment of the present invention further includes: a scan line 10 extending in a first direction and a data line 11 extending in a second direction, the blue color resist layer 71 being arranged in the second direction;
the first electrodes 6 corresponding to the blue color resist layers 71 arranged in the second direction are sequentially connected to form a strip structure.
When the blue color resistance layers are arranged in a line along the direction of the data line, each blue color resistance layer is provided with a corresponding first electrode, at the moment, the first electrodes arranged below the blue color resistance layers are connected together to form a continuous strip-shaped structure corresponding to the blue color resistance layers arranged along the second direction, and the strip-shaped structure is connected with a driving circuit which is arranged on the array substrate and used for applying voltage to the first electrodes, so that wiring in the central area of the opposite substrate is not needed, and the aperture opening ratio of the liquid crystal display panel is increased.
Or specifically, to facilitate wiring on the opposite substrate, it is more advantageous to apply a voltage to the first electrode, as shown in fig. 3, fig. 3 is a schematic top view structure diagram of another liquid crystal display panel provided in an embodiment of the present invention, where the liquid crystal display panel provided in an embodiment of the present invention further includes: a scan line 10 extending in a first direction and a data line 11 extending in a second direction, the blue color resist layer 71 being arranged in the first direction;
the first electrodes 6 corresponding to the blue color resist layers 71 arranged in the first direction are sequentially connected to form a stripe structure.
When the blue color resistance layers are arranged in a line along the direction of the scanning line, each blue color resistance layer is provided with a corresponding first electrode, at the moment, the first electrodes arranged below the blue color resistance layers are connected together to form a continuous strip-shaped structure corresponding to the blue color resistance layers arranged along the first direction, the strip-shaped structure is connected with a driving circuit which is arranged on the array substrate and used for applying voltage to the first electrodes, and the voltage is applied to the first electrodes under the control of the driving circuit, so that wiring in the central area of the opposite substrate is not needed, and the aperture ratio of the liquid crystal display panel is increased.
It should be noted that, when the first direction is a row direction, the second direction is a column direction; when the first direction is a column direction, the second direction is a row direction.
Optionally, in order to prevent the first electrode disposed corresponding to the blue color resist layer from affecting the pixels of other adjacent colors, as shown in fig. 4, fig. 4 is a schematic diagram of a top view structure of another liquid crystal display panel according to an embodiment of the present invention, and in a boundary between the blue color resist layer 71 and the other color resist layers of the liquid crystal display panel according to an embodiment of the present invention, a boundary of the first electrode 6 does not exceed a boundary of the blue color resist layer 71.
The first electrode is arranged at the position of the relative center of the blue color resistance layer, and a certain distance exists between the boundary of the first electrode and the boundary of the blue color resistance layer at the position of the boundary of the blue color resistance layer adjacent to the color resistance layers of other colors.
Specifically, as shown in fig. 4, in the liquid crystal display panel according to the embodiment of the present invention, at the boundary where the blue color resist layer 71 is adjacent to the other color resist layers, the distance W between the boundary of the first electrode 6 and the boundary of the blue color resist layer 71 is greater than or equal to 2.5 μm.
Alternatively, at the boundary where the blue color resist layer is adjacent to the other color resist layers, the distance W between the boundary of the first electrode and the boundary of the blue color resist layer is set to 2.5 μm, the vertical electric field generated between the corresponding first electrode and the pixel electrode arranged on the blue color resistance layer at the distance does not influence the adjacent pixels of other colors, and the size of the facing area of the first electrode and the pixel electrode is also ensured, when the distance W between the boundary of the first electrode and the boundary of the blue color resistance layer is increased, the orthographic projection area of the first electrode on the array substrate is reduced, the corresponding opposite area of the first electrode and the pixel electrode is reduced, therefore, a vertical electric field generated between the first electrode and the pixel electrode is influenced, blue light emitted by the blue pixel cannot be well reduced, and the effect of filtering a part of blue light to protect eyes is reduced.
In particular, according to the liquid crystal display panel provided by the embodiment of the invention, when in the first display mode, no voltage is applied to the first electrode;
in the second display mode, a voltage difference exists between the first electrode and the pixel electrode.
In the first display mode, voltage is applied to the pixel electrode and the common electrode, the pixel electrode and the common electrode form a fringe field, backlight is irradiated on the color resistance layer through liquid crystal under the action of the fringe field, and the display panel displays according to data of displayed images.
In the second display mode, namely the eye protection mode, the voltage applied to the pixel electrode and the common electrode is not required to be changed in the second display mode, the voltage is consistent with the voltage applied to the pixel electrode and the common electrode in the first display mode, and the voltage is also applied according to the data of the displayed image, only the voltage is applied to the first electrode on the basis, so that an electric field in the vertical direction is formed between the first electrode and the pixel electrode, the transmission amount of backlight corresponding to the blue color resistance layer is reduced, the amount of emitted blue light is reduced, the emission amount of the blue light is reduced under the condition that normal display is not influenced, and the human eyes are protected from stimulation of a large amount of blue light.
Optionally, in the liquid crystal display panel provided in the embodiment of the invention, in the second display mode, a voltage difference between the first electrode and the pixel electrode is greater than 0 volt and less than 5 volts. The voltage difference between the first electrode and the pixel electrode is kept between 0 volt and 5 volts to ensure the intensity of a vertical electric field between the first electrode and the pixel electrode, the deflection degree of liquid crystal between the first electrode and the pixel electrode is adjusted by adjusting the intensity of the vertical electric field between the first electrode and the pixel electrode, and therefore the amount of blue light emitted by the blue pixel is controlled to adapt to different demands for the blue light under different display conditions, the blue light emission amount is reduced, eyes are protected, the blue light emission amount can be adjusted according to the actual display conditions, and the display quality is not affected. When the voltage difference between the first electrode and the pixel electrode is greater than 5 v, the distortion of the image displayed by the lcd panel is relatively serious, which affects the display quality, and therefore, the voltage difference between the first electrode and the pixel electrode is maintained to be greater than 0v and less than 5 v.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the common electrode is located between the pixel electrode and the array substrate, and the pixel electrode is a slit electrode.
As shown in fig. 1, an insulating layer 3 is further included between the pixel electrode 4 and the common electrode 2, the pixel electrode 4 is a slit electrode, and the common electrode 2 is a planar electrode, which facilitates better formation of a fringe field between the pixel electrode 4 and the common electrode 2 to drive the liquid crystal layer so that backlight can smoothly penetrate through the liquid crystal layer and irradiate on the color resist layer 7 to emit light of a color corresponding to the color resist layer 7, thereby realizing normal display of the liquid crystal display panel.
Specifically, as shown in fig. 1, the liquid crystal display panel according to the embodiment of the present invention further includes a black matrix layer 12, where the black matrix layer 12 is disposed between the opposite substrate 8 and the color resist layer 7 to prevent color mixing between the color resist layers 7 of different colors, and to shield metal wires.
In particular, in the liquid crystal display panel provided by the embodiment of the invention, the orthographic projection of the pixel electrode on the array substrate covers the orthographic projection of the corresponding first electrode on the array substrate. The area of the orthographic projection of the pixel electrode on the array substrate is larger than or equal to the area of the orthographic projection of the first electrode on the array substrate, so that the area of the orthographic projection of the pixel electrode on the array substrate is ensured to be opposite to the area of the orthographic projection of the first electrode, a vertical electric field can be better formed between the pixel electrode and the first electrode, and the eye protection mode of the display panel is better realized.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the color resistance layer may be located on a side of the opposite substrate facing the array substrate, and the color resistance layer may also be located on a side of the array substrate facing the opposite substrate.
Specifically, as shown in fig. 5, fig. 5 is a schematic cross-sectional structure diagram of another liquid crystal display panel provided in the embodiment of the present invention, and further includes a planarization layer 9 located between the color resist layer 7 and the first electrode 6. The planarization layer is provided to planarize the uneven positions of the respective film layers. Of course, as shown in fig. 6, fig. 6 is a schematic cross-sectional structure diagram of another liquid crystal display panel provided in the embodiment of the present invention, and the first electrode 6 may also be disposed between the color-resist layer 7 and the planarization layer 9; as shown in fig. 7, fig. 7 is a schematic cross-sectional structure diagram of another liquid crystal display panel according to an embodiment of the invention, and the first electrode 6 is embedded in the planarization layer 9, which is not limited herein. However, disposing the first electrode 6 between the color-resist layer 7 and the planarization layer 9 increases the film layer between the first electrode 6 and the pixel electrode 4, and affects the electric field between the pixel electrode 4 and the first electrode 6 to some extent.
The following is a detailed description of an embodiment in which the liquid crystal display panel applies signals to different electrodes in different display modes, so that a liquid crystal layer in the liquid crystal display panel changes differently, thereby affecting the transmittance of blue light.
In a state where the display panel is not powered on, as shown in fig. 1, no voltage is applied to the pixel electrode 4, the common electrode 2 and the first electrode 6, and the liquid crystal molecules maintain an initial state, so that the backlight cannot penetrate through the liquid crystal layer and the polarizer attached to the outer side of the display panel, and the liquid crystal display panel cannot emit light of any color.
In the first display mode, as shown in fig. 8, fig. 8 is a schematic structural diagram of the liquid crystal display panel in the first display mode according to the embodiment of the present invention, and only voltages are applied to the pixel electrode 4 and the common electrode 2, a fringe field is generated between the pixel electrode 4 and the common electrode 2, so that light incident from the backlight can be irradiated on the color resistance layer 7 through the liquid crystal molecules, and the liquid crystal display panel displays red light, green light, and blue light according to data of a display image.
In the second display mode, i.e. in the eye protection mode, as shown in fig. 9, fig. 9 is a schematic structural view of the liquid crystal display panel in the second display mode according to the embodiment of the invention, in this mode, a voltage is applied to each of the pixel electrode 4, the common electrode 2 and the first electrode 6, wherein the voltages applied to the common electrode 2 and the pixel electrode 4 are the same as in the first display mode, the voltage applied to the first electrode 6 is a voltage that maintains the voltage difference between the first electrode 6 and the pixel electrode 4 between more than 0 volt and less than 5 volts, at which time, a vertical electric field is formed between the first electrode 6 and the pixel electrode 4, in this state, the liquid crystal layer corresponding to the blue color resist layer is influenced by the vertical electric field, so that the degree of deflection of the liquid crystal molecules corresponding to the blue color resist layer in the horizontal direction is reduced, and deflection in the vertical direction occurs, thus resulting in a significant reduction in the transmittance of blue light of the liquid crystal display panel. As shown in fig. 10, fig. 10 is a comparison graph of the blue light transmittance of the liquid crystal display panel in the first display mode and the second display mode according to the embodiment of the present invention, wherein when no voltage is applied to the first electrode, that is, in the floating state, the blue light transmittance of the liquid crystal display panel is significantly higher than that of the liquid crystal display panel when a voltage is applied to the first electrode (the applied voltage is 0V), and therefore, it can be demonstrated that the blue light transmittance of the liquid crystal display panel can be significantly adjusted by applying a voltage to the first electrode, wherein the magnitude of the decrease of the blue light transmittance is related to the voltage difference between the first electrode and the pixel electrode. In fig. 10, the abscissa represents the relative position coordinates at different positions across the width of the pixel.
Based on the same inventive concept, as shown in fig. 11, fig. 11 is a flowchart of a display method of a liquid crystal display panel according to an embodiment of the present invention, and the embodiment of the present invention further provides a display method of a liquid crystal display panel, including:
s1101, in a first display mode, applying corresponding voltages to the common electrode and the pixel electrode according to data of an image displayed by the liquid crystal panel to enable a voltage difference to exist between the common electrode and the pixel electrode, wherein the first electrode is in a floating state;
and S1102, in the second display mode, applying corresponding voltages to the common electrode and the pixel electrode according to the data of the image displayed by the liquid crystal panel to enable a voltage difference to exist between the common electrode and the pixel electrode, and respectively applying corresponding voltages to the first electrode to enable a voltage difference to exist between the first electrode and the pixel electrode.
The implementation of the display method can be seen in the above embodiments of the liquid crystal display panel, and repeated descriptions are omitted.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the liquid crystal display panel provided in the embodiment of the present invention, where the display device may be a mobile phone as shown in fig. 12, fig. 12 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and may also be any product or component having a display function, such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator, and the like, which is not limited herein. The implementation of the display device can be seen in the above embodiments of the liquid crystal display panel, and repeated descriptions are omitted.
The liquid crystal display panel, the display method and the display device provided by the embodiment of the invention comprise the following steps: the liquid crystal display panel comprises an opposite substrate, an array substrate and a liquid crystal layer, wherein the opposite substrate and the array substrate are oppositely arranged, and the liquid crystal layer is positioned between the opposite substrate and the array substrate; the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner; a plurality of color resistance layers arranged between the array substrate and the opposite substrate, wherein the color resistance layers at least comprise a red color resistance layer, a green color resistance layer and a blue color resistance layer; and the first electrode is positioned on one side of the opposite substrate facing the liquid crystal layer and corresponds to at least part of the blue color resistance layer. Through the arrangement of the common electrode, the pixel electrode and the first electrode, only voltage is applied to the common electrode and the pixel electrode, when the first electrode is in a floating state, a fringe field is formed between the pixel electrode and the common electrode, so that the liquid crystal display panel can display according to data of a display image, and the display picture is not distorted; when voltage is applied to the common electrode, the pixel electrode and the first electrode, a vertical electric field is formed between the first electrode and the pixel electrode corresponding to the blue pixel, so that the transmittance of blue light can be reduced, the damage of the blue light to eyes is reduced, the aim of protecting eyes is fulfilled, and the liquid crystal display panel has a dual display mode.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (13)
1. A liquid crystal display panel, comprising: the liquid crystal display panel comprises an opposite substrate, an array substrate and a liquid crystal layer, wherein the opposite substrate and the array substrate are oppositely arranged, and the liquid crystal layer is positioned between the opposite substrate and the array substrate; further comprising:
the pixel electrode and the common electrode are positioned on one side of the array substrate, which faces the liquid crystal layer, and are arranged in an insulated manner;
a plurality of color resistance layers arranged between the array substrate and the opposite substrate, wherein the color resistance layers at least comprise a red color resistance layer, a green color resistance layer and a blue color resistance layer;
the first electrode is positioned on one side of the opposite substrate, which faces the liquid crystal layer, and corresponds to at least part of the blue color resistance layer;
in a first display mode, no voltage is applied to the first electrode;
in a second display mode, a voltage difference exists between the first electrode and the pixel electrode.
2. The liquid crystal display panel according to claim 1, wherein each of the blue color resist layers is provided with a corresponding one of the first electrodes.
3. The liquid crystal display panel of claim 2, further comprising on the array substrate: the blue color resistance layer is arranged along the second direction;
and the first electrodes corresponding to the blue color resistance layers arranged along the second direction are sequentially connected to form a strip-shaped structure.
4. The liquid crystal display panel of claim 2, further comprising on the array substrate: the blue color-resisting layer is arranged along the first direction;
and the first electrodes corresponding to the blue color resistance layers arranged along the first direction are sequentially connected to form a strip-shaped structure.
5. The liquid crystal display panel according to claim 1, wherein at a boundary where the blue color resist layer is adjacent to the other color resist layers, a boundary of the first electrode does not exceed a boundary of the blue color resist.
6. The liquid crystal display panel according to claim 5, wherein a distance between a boundary of the first electrode and a boundary of the blue color resist layer is 2.5 μm or more at a boundary where the blue color resist layer is adjacent to the other color resist layers.
7. The liquid crystal display panel of claim 1, wherein a voltage difference between the first electrode and the pixel electrode is greater than 0 volts and less than 5 volts in the second display mode.
8. The liquid crystal display panel according to any one of claims 1 to 7, wherein the common electrode is located between the pixel electrode and the array substrate, and the pixel electrode is a slit electrode.
9. The liquid crystal display panel of claim 8, wherein an orthographic projection of the pixel electrode on the array substrate covers an orthographic projection of the corresponding first electrode on the array substrate.
10. The liquid crystal display panel of any of claims 1-7, wherein the color resist layer is on a side of the counter substrate facing the array substrate, and the first electrode is on a side of the blue color resist layer facing the liquid crystal layer.
11. The liquid crystal display panel according to claim 10, further comprising a planarization layer between the color resist layer and the layer where the first electrode is located.
12. A display method of a liquid crystal display panel according to any one of claims 1 to 11, comprising:
in a first display mode, corresponding voltages are applied to the common electrode and the pixel electrode according to data of an image displayed by a liquid crystal panel, so that a voltage difference exists between the common electrode and the pixel electrode, and the first electrode is in a floating state;
in a second display mode, corresponding voltages are applied to the common electrode and the pixel electrode according to data of an image displayed by the liquid crystal panel, so that a voltage difference exists between the common electrode and the pixel electrode, and corresponding voltages are respectively applied to the first electrodes, so that a voltage difference exists between the first electrodes and the pixel electrode.
13. A display device comprising the liquid crystal display panel according to any one of claims 1 to 11.
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| CN108665868B (en) * | 2018-07-02 | 2024-01-30 | 厦门天马微电子有限公司 | Display panel, display device and display panel driving method |
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| CN103676352A (en) * | 2013-11-29 | 2014-03-26 | 京东方科技集团股份有限公司 | Display panel |
| CN103926721A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display panel |
| CN106501981A (en) * | 2016-12-13 | 2017-03-15 | 昆山龙腾光电有限公司 | Compound liquid crystal indicator and preparation method thereof |
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| CN103676352A (en) * | 2013-11-29 | 2014-03-26 | 京东方科技集团股份有限公司 | Display panel |
| CN103926721A (en) * | 2013-12-31 | 2014-07-16 | 厦门天马微电子有限公司 | Liquid crystal display panel and liquid crystal display panel |
| CN106501981A (en) * | 2016-12-13 | 2017-03-15 | 昆山龙腾光电有限公司 | Compound liquid crystal indicator and preparation method thereof |
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