CN109828402B - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN109828402B CN109828402B CN201910284731.6A CN201910284731A CN109828402B CN 109828402 B CN109828402 B CN 109828402B CN 201910284731 A CN201910284731 A CN 201910284731A CN 109828402 B CN109828402 B CN 109828402B
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Abstract
The embodiment of the invention provides a liquid crystal display panel and a display device, relates to the technical field of display, can avoid cutting the display panel, and simultaneously realizes that the display device provided with a front camera has a larger screen area ratio. The liquid crystal display panel includes: the display device comprises a normal display area and an abnormal area, wherein the normal display area at least partially surrounds the abnormal area; the color film substrate is provided with a first transparent electrode in the special-shaped area, the array substrate is provided with a second transparent electrode in the special-shaped area, the liquid crystal layer is provided with specific liquid crystal in the special-shaped area, and the specific liquid crystal is used for switching between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode; and a separation sealant is arranged at the junction of the normal display area and the special-shaped area, is positioned between the color film substrate and the array substrate and is used for separating the part of the liquid crystal layer in the normal display area from the part of the liquid crystal layer in the special-shaped area.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel and a display device.
Background
Currently, display technologies have penetrated various aspects of people's daily lives, and accordingly, more and more materials and technologies are used for display screens. In order to better and more fully utilize the space of the display panel, the screen occupation ratio is higher and higher, namely the display area occupies larger and larger proportion of the display panel. When the area of the display area is large, the display area may encroach on the space of the front camera, and thus, a part of the display panel is cut and removed to provide the front camera.
However, the cutting process of the display panel has a certain risk of damaging the display panel.
Disclosure of Invention
The embodiment of the invention provides a liquid crystal display panel and a display device, which can avoid cutting the display panel and simultaneously realize that the display device provided with a front camera has a larger screen occupation ratio.
In one aspect, an embodiment of the present invention provides a liquid crystal display panel, including:
a normal display area and a special-shaped area, wherein the normal display area at least partially surrounds the special-shaped area;
the liquid crystal display panel comprises a color film substrate, an array substrate and a liquid crystal layer positioned between the color film substrate and the array substrate, wherein the color film substrate and the array substrate cover the special-shaped area;
the color film substrate is provided with a first transparent electrode in the special-shaped area, the array substrate is provided with a second transparent electrode in the special-shaped area, the liquid crystal layer is provided with specific liquid crystal in the special-shaped area, and the specific liquid crystal is used for switching between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode;
and a separation sealant is arranged at the junction of the normal display area and the special-shaped area, is positioned between the color film substrate and the array substrate and is used for separating the part of the liquid crystal layer in the normal display area from the part of the liquid crystal layer in the special-shaped area.
Optionally, the specific liquid crystal is a polymer network liquid crystal or a cholesteric liquid crystal.
Optionally, the first transparent electrode or the second transparent electrode includes a plurality of transparent electrode blocks disposed at intervals.
Optionally, the second transparent electrode includes a plurality of transparent electrode blocks disposed at intervals;
the array substrate comprises a common electrode positioned in the normal display area, the common electrode comprises a plurality of common electrode blocks, and the second transparent electrode and the common electrode are arranged on the same layer;
the shape and the size of the transparent electrode block and the common electrode block are the same, and the common electrode block and the transparent electrode block are multiplexed into a touch electrode.
Optionally, the special-shaped region includes a plurality of sub-regions, the first transparent electrode or the second transparent electrode includes a sub-electrode corresponding to each of the sub-regions, and the sub-electrodes are insulated from each other.
Optionally, the special-shaped area includes a camera area and an auxiliary display area;
the auxiliary display area comprises a plurality of auxiliary pixels, the second transparent electrode comprises an auxiliary pixel electrode corresponding to each auxiliary pixel, and the auxiliary pixel electrodes are insulated from each other;
the auxiliary display area further comprises auxiliary data lines, auxiliary scanning lines and auxiliary switching tubes corresponding to the auxiliary pixel electrodes, wherein a first end of each auxiliary switching tube is electrically connected to the corresponding auxiliary pixel electrode, a second end of each auxiliary switching tube is electrically connected to the corresponding auxiliary data line, and a control end of each auxiliary switching tube is electrically connected to the corresponding auxiliary scanning line.
Optionally, the special-shaped area is located at an edge of the liquid crystal display panel, and the normal display area semi-surrounds the special-shaped area.
Optionally, the normal display area completely surrounds the shaped area.
Optionally, the liquid crystal display panel further includes:
a first signal line electrically connected to the first transparent electrode;
the normal display area includes a light-transmitting area and a black matrix area, and a portion of the first signal line in the normal display area is located within the black matrix area.
Optionally, the array substrate includes a common electrode and a pixel electrode;
the second transparent electrode and the common electrode or the pixel electrode are arranged in the same layer.
On the other hand, an embodiment of the invention further provides a display device, which includes the liquid crystal display panel.
In the liquid crystal display panel and the display device in the embodiment of the invention, the normal display area at least partially surrounds the special-shaped area, the normal display area is used for displaying a normal picture, the color film substrate comprises the first transparent electrode in the special-shaped area, the array substrate comprises the second transparent electrode, the liquid crystal layer comprises the specific liquid crystal, the specific liquid crystal is switched between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode, the special-shaped area can be provided with the front camera, and when the front camera is used, the specific liquid crystal is controlled to be in the transparent state, so that the adverse effect on the image pickup of the front camera is avoided; when the front camera is not used, the specific liquid crystal is controlled to be in a fog state, so that the privacy of a user is prevented from being invaded by shooting of the front camera. On one hand, the special-shaped cutting of the liquid crystal display panel at the position of the front camera is avoided, so that the probability of damage risk to the display panel due to the cutting is reduced, and meanwhile, the normal display area at least partially surrounds the special-shaped area, so that the display device provided with the front camera has a larger screen occupation ratio; on the other hand, through the characteristic that specific liquid crystal in the special-shaped area can be switched between a transparent state and a fog state, the privacy of a user can be prevented from being revealed, and the safety performance is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a liquid crystal display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view along AA' of FIG. 1;
FIG. 3 is a schematic view of a structure of the first transparent electrode or the second transparent electrode in FIG. 1;
FIG. 4 is a schematic diagram of a partial area of another LCD panel according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view along direction BB' in FIG. 4;
FIG. 6 is an enlarged schematic view of the shaped region of FIG. 1;
FIG. 7 is an enlarged view of a portion of the auxiliary display area of FIG. 6;
FIG. 8 is a schematic view of another LCD panel according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of area A of FIG. 8;
fig. 10 is a schematic cross-sectional view of the color filter substrate in the direction CC' of fig. 9;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a liquid crystal display panel in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross section along direction AA' in fig. 1, an embodiment of the present invention provides a liquid crystal display panel, including: a normal display area 1 and an abnormal area 2, wherein the normal display area 2 at least partially surrounds the abnormal area 2; the liquid crystal display panel comprises a color film substrate 3, an array substrate 4 and a liquid crystal layer 5 positioned between the color film substrate 3 and the array substrate 4, wherein the color film substrate 3 and the array substrate 4 cover an abnormal area 2; the color film substrate 3 is provided with a first transparent electrode 51 in the special-shaped area 2, the array substrate 4 is provided with a second transparent electrode 52 in the special-shaped area 2, the liquid crystal layer 5 is provided with a specific liquid crystal 50 in the special-shaped area 2, and the specific liquid crystal 50 is used for switching between a transparent state and a fog state under the action of electric fields of the first transparent electrode 51 and the second transparent electrode 52; and a partition sealant 6 is arranged at the junction of the normal display area 1 and the special-shaped area 2, and the partition sealant 6 is positioned between the color film substrate 3 and the array substrate 4 and is used for partitioning the part of the liquid crystal layer 5 in the normal display area 1 and the part in the special-shaped area 2.
Specifically, the normal display area 1 is used for normally displaying images, the liquid crystal display panel includes pixels arranged in the normal display area 1, each pixel includes a plurality of sub-pixels, each sub-pixel includes a color resistor on the color film substrate 3, the color resistors are used for filtering light so that the sub-pixels have corresponding light emitting colors, each sub-pixel includes a pixel electrode and a common electrode, for example, both the pixel electrode and the common electrode are located on the array substrate 4, when a voltage is applied to the pixel electrode and the common electrode, the pixel electrode and the common electrode form an electric field, and the electric field penetrates through the liquid crystal layer 5, so that liquid crystals in the liquid crystal layer 5 in the normal display area 1 are deflected under the control of the voltages of the pixel electrode and the common electrode, so that the sub-pixels have corresponding light emitting brightness. The liquid crystal layer 5 has liquid crystal in the irregular area 2 different from that in the normal display area 1, and therefore, a separation sealant 6 needs to be provided between the irregular area 2 and the normal display area 1. When the liquid crystal display panel is applied to a display device, the front camera is arranged at the special-shaped area 2 on the back of the liquid crystal display panel, when the front camera needs to be used, voltage is applied to the first transparent electrode 51 and the second transparent electrode 52, so that specific liquid crystal 50 in the special-shaped area 2 deflects, at the moment, light rays can directly penetrate through the liquid crystal layer 5, the liquid crystal layer 5 is enabled to be in a transparent state in the special-shaped area 2, and the front camera can achieve a front shooting function through the special-shaped area 2 of the liquid crystal display panel; when the front camera is not used, no voltage is applied to at least one of the first transparent electrode 51 and the second transparent electrode 52, that is, no electric field exists between the first transparent electrode 51 and the second transparent electrode 52, at this time, the specific liquid crystal 50 does not deflect, and when light passes through the liquid crystal layer 5 in the special-shaped region 2, light is scattered, that is, in a fog state, where a part of light can pass through the liquid crystal layer 5, but can be emitted from different angles due to scattering, so that a fog-like display effect of ground glass is generated, that is, a shielding effect on the front camera can be achieved through the liquid crystal layer 5 in the special-shaped region 2. It can be understood that the above-mentioned control manner of applying a voltage to the first transparent electrode 51 and the second transparent electrode 52 to make the specific liquid crystal 50 in the transparent state and applying no voltage to the first transparent electrode 51 and the second transparent electrode 52 to make the specific liquid crystal 50 in the fog state is only an example, and other control manners may be used, for example, the first transparent electrode 51 and the second transparent electrode 52 make the specific liquid crystal 50 in the transparent state under the action of one voltage difference, and the first transparent electrode 51 and the second transparent electrode 52 make the specific liquid crystal 50 in the fog state under the action of another voltage difference, as long as the electric field action between the first transparent electrode 51 and the second transparent electrode 52 controls the specific liquid crystal 50 to be switched between the transparent state and the fog state.
In the liquid crystal display panel in the embodiment of the invention, the normal display area at least partially surrounds the special-shaped area, the normal display area is used for displaying a normal picture, the color film substrate comprises the first transparent electrode in the special-shaped area, the array substrate comprises the second transparent electrode, the liquid crystal layer comprises the specific liquid crystal, the specific liquid crystal is switched between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode, the special-shaped area can be provided with the front camera, and when the front camera is used, the specific liquid crystal is controlled to be in the transparent state, so that the adverse effect on the image pickup of the front camera is avoided; when the front camera is not used, the specific liquid crystal is controlled to be in a fog state, so that the privacy of a user is prevented from being invaded by shooting of the front camera. On one hand, the special-shaped cutting of the liquid crystal display panel at the position of the front camera is avoided, so that the probability of damage risk to the display panel due to the cutting is reduced, and meanwhile, the normal display area at least partially surrounds the special-shaped area, so that the display device provided with the front camera has a larger screen occupation ratio; on the other hand, through the characteristic that specific liquid crystal in the special-shaped area can be switched between a transparent state and a fog state, the privacy of a user can be prevented from being revealed, and the safety performance is improved.
Alternatively, the specific Liquid Crystal 50 is a Polymer Network Liquid Crystal (PNLC) or a cholesteric Liquid Crystal.
Specifically, for example, when no electric field is formed between the first transparent electrode 51 and the second transparent electrode 52, the liquid crystal and the polymer in the polymer network liquid crystal are aligned based on the alignment direction of the color film substrate 3 and the array substrate 4, that is, are aligned parallel to the liquid crystal display panel, and are in a transparent state; when an electric field is formed between the first transparent electrode 51 and the second transparent electrode 52, the liquid crystal in the center of the polymer network is oriented perpendicular to the liquid crystal display panel along with the direction of the electric field, while the liquid crystal in the polymer network and the edges of the color film substrate 3 and the array substrate 4 are kept in the original parallel orientation or form a certain angle with the liquid crystal display panel, and the incident light is scattered and is in a fog state due to the difference of the refractive indexes of the liquid crystals in the mixture system. Cholesteric liquid crystals can also achieve the same effect, and the detailed description of the principle is omitted.
Alternatively, as shown in fig. 1, fig. 2 and fig. 3, fig. 3 is a schematic structural diagram of the first transparent electrode or the second transparent electrode in fig. 1, and the first transparent electrode 51 or the second transparent electrode 52 includes a plurality of transparent electrode blocks 53 disposed at intervals.
Specifically, although the first transparent electrode 51 and the second transparent electrode 52 are made of transparent materials, the light transmittance of the special-shaped region 2 is still reduced due to the arrangement of the transparent electrodes, and therefore, one of the first transparent electrode 51 and the second transparent electrode 52 may include a plurality of transparent electrode blocks 53 spaced from each other, each transparent electrode block 53 is used for forming an electric field with a transparent electrode on the other substrate to switch the specific liquid crystal in the special-shaped region 2 between a transparent state and a fog state, and the spaced regions between the transparent electrode blocks 53 are used for improving the light transmittance of the special-shaped region 2, so as to improve the shooting effect of the front camera. The transparent electrode blocks 53 may obtain the required voltage through separate signal lines, or the transparent electrode blocks 53 may be connected together to obtain the required voltage through the same signal line.
Alternatively, as shown in fig. 4 and fig. 5, fig. 4 is a schematic structural view of a partial region of another liquid crystal display panel in the embodiment of the present invention, fig. 5 is a schematic structural view of a cross section along direction BB' in fig. 4, and the second transparent electrode 52 includes a plurality of transparent electrode blocks 53 disposed at intervals; the array substrate 4 comprises a common electrode 41 positioned in the normal display area 1, the common electrode 41 comprises a plurality of common electrode blocks, and the second transparent electrode 52 and the common electrode are arranged in the same layer; the shape and size of the transparent electrode block 53 and the common electrode block are the same, and the common electrode block and the transparent electrode block 53 are multiplexed as touch electrodes.
Specifically, in the normal display area 1, the color filter substrate 3 includes a color resistor corresponding to each sub-pixel, where the color resistor is used to filter light so that the sub-pixel displays a corresponding color, the color filter substrate 3 further includes a black matrix used to shield a non-light-emitting area, the array substrate 4 includes a pixel electrode 42 corresponding to each sub-pixel, in the driving process of the normal display area 1, the display driving stage and the touch driving stage are included, in the display driving stage, the common electrode 41 is used to generate an electric field with the pixel electrode 42 to drive liquid crystal to deflect so as to realize the display function of the sub-pixel, each common electrode block in the common electrode 41 obtains the same common electrode voltage, each pixel electrode 42 obtains a pixel electrode voltage corresponding to the sub-pixel, in each sub-pixel, an electric field is formed between the pixel electrode 42 and the common electrode 41, and under the action of the electric field, deflecting liquid crystal corresponding to the sub-pixel to enable the sub-pixel to have corresponding light emitting brightness; in the touch driving stage, the common electrode 41 is used as a touch electrode, each common electrode block is independently driven, when a user performs touch operation, the current on the common electrode block at the touch position changes due to the induction of a finger, and the touch position can be judged according to the change of the induction current on the common electrode block, so that the touch function is realized. Therefore, in the normal display area 1, a plurality of common electrode blocks are distributed in a matrix to realize the judgment of touch positions, the shape and the size of the transparent electrode block 53 in the special-shaped area 2 are set to be the same as those of the common electrode block in the normal display area 1, further, the distribution density of the transparent electrode block 53 in the special-shaped area 2 can be set to be the same as that of the common electrode block in the normal display area 1, the transparent electrode block 53 and the common electrode block can be jointly multiplexed as a touch electrode, in a display driving stage, the transparent electrode block 53 is used for controlling the specific liquid crystal 50 in the special-shaped area 2 to be in a fog state or a transparent state, and the common electrode block is used for controlling the deflection of the liquid crystal in the normal display area 1 to realize the display of each sub-pixel; in the touch driving stage, the transparent electrode block 53 in the special-shaped area 2 and the common electrode block in the normal display area 1 are both multiplexed as touch electrodes for sensing touch operations in the special-shaped area 2 and the normal display area 1. During touch operation, outside the edge of the display area, if there is no touch electrode, the number of touch electrodes overlapped with the user's finger is smaller than that during touch operation in the middle of the display area, which results in lower touch accuracy during touch operation at the edge of the display area. In the embodiment of the present invention, the special-shaped area 2 is not used for displaying the normal screen, but the touch electrode is still disposed therein, so that the touch accuracy at the boundary between the special-shaped area 2 and the normal display area 1 can be improved, and the transparent electrode block 53 and the common electrode block have the same shape and size, so that the consistency of the touch effect can be improved. In addition, the special-shaped area 2 may have a rounded corner formed by arc-shaped edges, and the transparent electrode block 53 is generally rectangular, so that the transparent electrode block 53 may not be matched with the edges of the special-shaped area 2, at this time, the transparent electrode block 53 at the rounded corner may be set to be in a shape matched with the rounded corner, so as to prevent the transparent electrode block 53 from partially covering the normal display area 1 and causing adverse effects on a normal display picture; or, the black matrix 33 may be disposed between the irregular area 2 and the normal display area 1, and the transparent electrode block 53 whose rounded corner exceeds the irregular area 2 is shielded by the black matrix 33, so as to avoid the adverse effect of the transparent electrode block 53 on the normal display picture.
Alternatively, as shown in fig. 1 and fig. 6, fig. 6 is an enlarged schematic structural diagram of the special-shaped region in fig. 1, the special-shaped region 2 includes a plurality of sub-regions 20, the first transparent electrode or the second transparent electrode includes sub-electrodes corresponding to each sub-region 20, and the sub-electrodes are insulated from each other.
Specifically, the special-shaped region 2 may include a plurality of sub-regions 20, and for the first transparent electrode or the second transparent electrode in the special-shaped region 2, sub-electrodes corresponding to each sub-region 20 may be included, and the sub-electrodes are insulated from each other, so that each sub-electrode may receive different control signals, that is, the sub-region control for different sub-regions 20 may be implemented, and different control for each sub-region 20 may be implemented.
Alternatively, as shown in fig. 1, 6 and 7, fig. 7 is a partially enlarged schematic view of the auxiliary display area in fig. 6, and the special-shaped area 2 includes a camera area 21 and an auxiliary display area 22; the auxiliary display region 22 includes a plurality of auxiliary pixels, the second transparent electrode includes an auxiliary pixel electrode 221 corresponding to each auxiliary pixel, and the auxiliary pixel electrodes 221 are insulated from each other; the auxiliary display region 22 further includes auxiliary data lines 222, auxiliary scan lines 223, and auxiliary switching tubes 224 corresponding to each of the auxiliary pixel electrodes 221, wherein a first end of each of the auxiliary switching tubes 224 is electrically connected to the corresponding auxiliary pixel electrode 221, a second end of each of the auxiliary switching tubes 224 is electrically connected to the corresponding auxiliary data line 222, and a control end of each of the auxiliary switching tubes 224 is electrically connected to the corresponding auxiliary scan line 223.
Specifically, the camera area 21 is a position where the front camera is set, and for the camera area 21, the state of the specific liquid crystal corresponding to the camera area 21 may be controlled according to whether the front camera is controlled by a user to be used, and a specific control manner may refer to the description in the above embodiment, on one hand, when the front camera is used, the specific liquid crystal in the camera area 21 may be controlled to be in a transparent state to implement the front camera function, and on the other hand, when the front camera is not used, the specific liquid crystal in the camera area 21 may be controlled to be in a fog state to implement the shielding of the front camera. The auxiliary display area 22 is an area for displaying auxiliary information, such as display power, signal strength or time, etc., in the auxiliary display area 22, the specific principle of displaying information may be similar to the principle of displaying a picture in a normal display area, and an on level is sequentially provided for each auxiliary scanning line 223 to control the auxiliary pixel electrodes 221 to enter a charging state line by line, for example, when the first auxiliary scanning line 223 is on level, the other auxiliary scanning lines 223 are off level, and the on level controls the first row auxiliary switching tube 224 to be turned on, that is, each auxiliary data line 222 is respectively turned on with each auxiliary pixel electrode 221 in the first row through the auxiliary switching tube 224, so that the voltage on the auxiliary data line 222 is transmitted to each auxiliary pixel electrode 222 in the first row to charge the auxiliary pixel electrodes 222, and after the charging is completed, the auxiliary pixel electrodes 222 have corresponding voltages, the first transparent electrode on the color film substrate also has a voltage, and an electric field is formed between the first transparent electrode and the voltage to control the deflection of the specific liquid crystal corresponding to the auxiliary sub-pixels in the auxiliary display region 22, the specific liquid crystal can be switched between a transparent state and a fog state, some auxiliary sub-pixels are in the transparent state, and other auxiliary sub-pixels are in the fog state, so that some simple information display functions can be realized by having different auxiliary sub-pixel display effects.
Alternatively, as shown in fig. 1, the special-shaped area 2 is located at the edge of the liquid crystal display panel, and the normal display area 1 semi-surrounds the special-shaped area 2.
Alternatively, as shown in fig. 8, fig. 8 is a schematic structural diagram of another liquid crystal display panel in the embodiment of the present invention, and the normal display area 1 completely surrounds the special-shaped area 2.
Optionally, as shown in fig. 8, 9 and 10, fig. 9 is a schematic partial enlarged view of a region a in fig. 8, and fig. 10 is a schematic cross-sectional structure of the color filter substrate in the direction CC' in fig. 9, where the liquid crystal display panel further includes: a first signal line 511 electrically connected to the first transparent electrode 51; the normal display area 1 includes a light transmission area 11 and a black matrix area 12, and a portion of the first signal line 511 in the normal display area 1 is located within the black matrix area 12.
Specifically, the color filter substrate 3 includes a substrate 31, a color resistor 32 and a black matrix 33, the color resistor 32 and the black matrix 33 are disposed on the substrate 31, the normal display region 1 includes a plurality of light-transmitting regions 11, the light-transmitting regions 11 correspond to the sub-pixels one by one, each sub-pixel corresponds to one light-transmitting region 11, the light-transmitting regions 11 are used for realizing light-emitting display of the sub-pixels, the color resistor 32 is located in the light-transmitting region 11 and is used for realizing light filtering of the sub-pixels, the region outside the light-transmitting region 11 is a black matrix region 12, the black matrix 33 is located in the black matrix region 12 and is used for shielding elements such as metal wires and switching tubes in the array substrate, ambient light is prevented from being reflected at the metal elements, and display contrast is improved. The first signal line 511 is used for transmitting a required signal to the first transparent electrode 51, and since the first transparent electrode 51 is completely surrounded by the normal display area 1, the first signal line 511 needs to penetrate through the normal display area 1, and then the first transparent electrode 51 on the color filter substrate 3 and the array substrate are electrically connected at the edge of the liquid crystal display panel through silver paste or a conductive gold ball, so as to provide a signal to the first transparent electrode 51 on the color filter substrate 3, and the first signal line 511 is arranged in the black matrix area 12, and since the black matrix area 12 is used for shading light, the adverse effect of the first signal line 511 on the transmittance of the liquid crystal display panel can be avoided.
Alternatively, as shown in fig. 5, the array substrate 4 includes a common electrode 41 and a pixel electrode 42; the second transparent electrode 52 is disposed in the same layer as the common electrode 41 or the pixel electrode 42.
Specifically, the common electrode 41, the pixel electrode 42 and the second transparent electrode 52 may be formed of an Indium Tin Oxide (ITO) material and are disposed on the array substrate 4, so that the second transparent electrode 52 may be disposed in the same layer as the common electrode 41 or the pixel electrode 42, so as to be formed through the same patterning process, thereby saving cost.
As shown in fig. 11, fig. 11 is a schematic structural diagram of a display device in an embodiment of the present invention, and the embodiment of the present invention further provides a display device, which includes the above-mentioned liquid crystal display panel 100, where the liquid crystal display panel 100 includes the above-mentioned normal display area 1 and the special-shaped area 2, it should be noted that fig. 11 only illustrates a structure in which the special-shaped area 2 is located at an edge of the liquid crystal display panel and is half-surrounded by the normal display area 1, and in other realizable embodiments, the normal display area 1 may completely surround the special-shaped area 2.
The display device in the embodiment of the present invention may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
In the display device in the embodiment of the invention, the normal display area at least partially surrounds the special-shaped area, the normal display area is used for displaying a normal picture, the color film substrate comprises the first transparent electrode in the special-shaped area, the array substrate comprises the second transparent electrode, the liquid crystal layer comprises specific liquid crystal, the specific liquid crystal is switched between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode, the special-shaped area can be provided with the front camera, and when the front camera is used, the specific liquid crystal is controlled to be in the transparent state, so that the adverse effect on the camera shooting of the front camera is avoided; when the front camera is not used, the specific liquid crystal is controlled to be in a fog state, so that the privacy of a user is prevented from being invaded by shooting of the front camera. On one hand, the special-shaped cutting of the liquid crystal display panel at the position of the front camera is avoided, so that the probability of damage risk to the display panel due to the cutting is reduced, and meanwhile, the normal display area at least partially surrounds the special-shaped area, so that the display device provided with the front camera has a larger screen occupation ratio; on the other hand, through the characteristic that specific liquid crystal in the special-shaped area can be switched between a transparent state and a fog state, the privacy of a user can be prevented from being revealed, and the safety performance is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A liquid crystal display panel, comprising:
the display device comprises a normal display area and a special-shaped area, wherein the normal display area at least partially surrounds the special-shaped area, and the special-shaped area comprises a camera area;
the liquid crystal display panel comprises a color film substrate, an array substrate and a liquid crystal layer positioned between the color film substrate and the array substrate, wherein the color film substrate and the array substrate cover the special-shaped area;
the color film substrate is provided with a first transparent electrode in the special-shaped area, the array substrate is provided with a second transparent electrode in the special-shaped area, the liquid crystal layer is provided with specific liquid crystal in the special-shaped area, and the specific liquid crystal is used for switching between a transparent state and a fog state under the action of electric fields of the first transparent electrode and the second transparent electrode; the specific liquid crystal is a polymer network liquid crystal or a cholesteric liquid crystal;
the liquid crystal display panel avoids special-shaped cutting at the position of the front camera; and a separation sealant is arranged at the junction of the normal display area and the special-shaped area, is positioned between the color film substrate and the array substrate and is used for separating the part of the liquid crystal layer in the normal display area from the part of the liquid crystal layer in the special-shaped area.
2. The liquid crystal display panel according to claim 1,
the first transparent electrode or the second transparent electrode comprises a plurality of transparent electrode blocks which are arranged at intervals.
3. The liquid crystal display panel according to claim 2,
the second transparent electrode comprises a plurality of transparent electrode blocks which are arranged at intervals;
the array substrate comprises a common electrode positioned in the normal display area, the common electrode comprises a plurality of common electrode blocks, and the second transparent electrode and the common electrode are arranged on the same layer;
the shape and the size of the transparent electrode block and the common electrode block are the same, and the common electrode block and the transparent electrode block are multiplexed into a touch electrode.
4. The liquid crystal display panel according to claim 1,
the special-shaped area comprises a plurality of sub-areas, the first transparent electrode or the second transparent electrode comprises sub-electrodes corresponding to each sub-area, and the sub-electrodes are mutually insulated.
5. The liquid crystal display panel according to claim 1,
the special-shaped area further comprises an auxiliary display area;
the auxiliary display area comprises a plurality of auxiliary pixels, the second transparent electrode comprises an auxiliary pixel electrode corresponding to each auxiliary pixel, and the auxiliary pixel electrodes are insulated from each other;
the auxiliary display area further comprises auxiliary data lines, auxiliary scanning lines and auxiliary switching tubes corresponding to the auxiliary pixel electrodes, wherein a first end of each auxiliary switching tube is electrically connected to the corresponding auxiliary pixel electrode, a second end of each auxiliary switching tube is electrically connected to the corresponding auxiliary data line, and a control end of each auxiliary switching tube is electrically connected to the corresponding auxiliary scanning line.
6. The liquid crystal display panel according to claim 1,
the special-shaped area is located at the edge of the liquid crystal display panel, and the normal display area semi-surrounds the special-shaped area.
7. The liquid crystal display panel according to claim 1,
the normal display area completely surrounds the shaped area.
8. The liquid crystal display panel according to claim 7, further comprising:
a first signal line electrically connected to the first transparent electrode;
the normal display area includes a light-transmitting area and a black matrix area, and a portion of the first signal line in the normal display area is located within the black matrix area.
9. The liquid crystal display panel according to claim 1,
the array substrate comprises a common electrode and a pixel electrode;
the second transparent electrode and the common electrode or the pixel electrode are arranged in the same layer.
10. A display device comprising the liquid crystal display panel according to any one of claims 1 to 9.
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| CN110764319A (en) * | 2019-09-10 | 2020-02-07 | 武汉华星光电技术有限公司 | Display panel, display device and display control method |
| CN110673368A (en) * | 2019-09-20 | 2020-01-10 | 南京中电熊猫平板显示科技有限公司 | Liquid crystal display panel |
| CN110673369A (en) | 2019-09-23 | 2020-01-10 | 武汉华星光电技术有限公司 | Display panel and electronic device |
| US11340487B2 (en) | 2020-04-15 | 2022-05-24 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display device |
| CN111352268A (en) * | 2020-04-15 | 2020-06-30 | 武汉华星光电技术有限公司 | Display device |
| CN113534539A (en) * | 2021-07-27 | 2021-10-22 | 武汉华星光电技术有限公司 | Display module and display device |
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| KR102384068B1 (en) * | 2015-09-11 | 2022-04-07 | 삼성디스플레이 주식회사 | Liquid Crystal Display |
| EP3609165B1 (en) * | 2017-04-25 | 2021-09-22 | Huawei Technologies Co., Ltd. | Electronic device comprising lcd display screen and manufacturing method thereof |
| CN107885399B (en) * | 2017-10-27 | 2021-04-13 | Oppo广东移动通信有限公司 | Array substrate, touch display panel and electronic equipment |
| CN107680995B (en) * | 2017-11-02 | 2023-08-08 | 武汉天马微电子有限公司 | Display panel and display device |
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| CN109164624B (en) * | 2018-09-30 | 2021-08-17 | 京东方科技集团股份有限公司 | Display panel, display device and image acquisition method thereof |
| CN109239997B (en) * | 2018-11-27 | 2021-10-19 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110010666B (en) * | 2019-03-28 | 2021-03-16 | 武汉华星光电半导体显示技术有限公司 | Under-screen camera structure of OLED screen and OLED screen |
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