CN115308955A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN115308955A CN115308955A CN202210931954.9A CN202210931954A CN115308955A CN 115308955 A CN115308955 A CN 115308955A CN 202210931954 A CN202210931954 A CN 202210931954A CN 115308955 A CN115308955 A CN 115308955A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- layer
- display panel
- electrode
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13478—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells based on selective reflection
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application provides a display panel and a display device, wherein the display panel comprises a liquid crystal display layer and an optical controller, an opening area of the liquid crystal display layer is provided with a photosensitive device, the optical controller comprises a first liquid crystal layer, when the incident light intensity is greater than a first threshold value, the first liquid crystal layer is in a reflection state, and when the incident light intensity is less than or equal to the first threshold value, the first liquid crystal layer is in a transmission state; this application sets up optical controller through the one side that deviates from display panel's light-emitting direction at the liquid crystal display layer, and first liquid crystal layer can switch between reflection attitude and transmission attitude according to the size of incident light intensity to make display panel when realizing reflection display function and transmission display function, avoid adopting the design of reflection metal rete, and then improved display panel's transmissivity.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of Display technology, liquid Crystal Display (LCD) panels are becoming more popular because of their advantages of portability, low radiation, etc.
In order to reduce the power consumption of the backlight source in the liquid crystal display panel, a transflective liquid crystal display capable of displaying by using ambient light is developed. The transflective liquid crystal display can simultaneously utilize the backlight source and the external ambient light for display, and the combination of projection display and reflective display can greatly reduce energy consumption and meet the requirements of large-size and different display scenes. However, the reflective function of the conventional transflective display panel is generally to dispose a reflective metal film layer between the first substrate and the color filter substrate, thereby reducing the transmittance of the display panel.
Therefore, a display panel and a display device are needed to solve the above technical problems.
Disclosure of Invention
The application provides a display panel and a display device, which can solve the technical problem that the prior display panel which can realize the transmission display function and the reflection display function has lower penetration rate.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
the embodiment of the application provides a display panel, which comprises a liquid crystal display layer and an optical controller, wherein the liquid crystal display layer comprises a photosensitive device arranged in an opening area of the display panel, and the photosensitive device is used for acquiring incident light intensity incident to the liquid crystal display layer; the optical controller is arranged on one side, away from the light emergent direction of the display panel, of the liquid crystal display layer and comprises a first liquid crystal layer;
when the incident light intensity is greater than a first threshold value, the first liquid crystal layer is in a reflection state; when the incident light intensity is smaller than or equal to a first threshold value, the first liquid crystal layer is in a transmission state.
In the display panel provided in the embodiment of the present application, the optical controller includes a first electrode and a second electrode, the first liquid crystal layer is located between the first electrode and the second electrode, and a driving electric field between the first electrode and the second electrode switches the first liquid crystal layer between a reflective state and a transmissive state;
wherein the second liquid crystal layer comprises cholesterol liquid crystal.
In the display panel provided in the embodiment of the present application, when the driving electric field is smaller than the second threshold, the liquid crystal molecules in the first liquid crystal layer are not deflected, and the first liquid crystal layer is in a reflective state;
when the driving electric field is larger than a third threshold value, liquid crystal molecules of the first liquid crystal layer deflect, and the first liquid crystal layer is in a transmission state;
the value range of the second threshold is between 0 and 6, and the third threshold is greater than 12.
In the display panel provided in the embodiment of the present application, the optical controller further includes:
a first substrate; and
and the plurality of first metal wires are arranged between the first substrate and the first electrode, and the first electrode is electrically connected with the plurality of first metal wires.
In the display panel provided in the embodiment of the present application, the thickness range of the first liquid crystal layer is 3.0um to 3.2um, and the rotation angle range of the director of the liquid crystal molecules in the first liquid crystal layer is 0 to 360 °.
In the display panel provided by the embodiment of the application, the liquid crystal display layer comprises a second liquid crystal layer, and the thickness of the second liquid crystal layer is the same as that of the first liquid crystal layer.
In the display panel provided in the embodiment of the present application, the liquid crystal display layer further includes a first substrate and a second substrate disposed opposite to the first substrate, and the photosensitive device is disposed on the first substrate;
the photosensitive device comprises a photosensitive layer, and an input electrode and an output electrode which are arranged on the photosensitive layer, wherein the input electrode and the output electrode are arranged at the same layer and at intervals.
In the display panel provided in the embodiment of the present application, the first substrate further includes a switching transistor located on one side of the light sensing device, and the switching transistor includes:
a gate metal layer disposed on the first substrate;
the grid electrode insulating layer is arranged on the first substrate and covers the grid electrode metal layer;
the active layer is arranged on the grid electrode insulating layer, and the orthographic projection of the active layer on the grid electrode metal layer is positioned in the grid electrode metal layer; and
the source drain metal layer is arranged on the grid electrode insulating layer and is electrically connected with the active layer;
the photosensitive layer and the active layer are made of amorphous silicon, and the input electrode and the output electrode are made of the same material as the source drain electrode metal layer respectively.
In the display panel provided in the embodiment of the present application, the display panel further includes a printed circuit board disposed on the first substrate;
wherein, the sensitization device and the optical controller are respectively electrically connected with the printed circuit board.
Correspondingly, an embodiment of the present application further provides a display device, including any one of the display panels described above and a backlight module disposed on a side of the optical controller away from the liquid crystal display layer;
when the incident light intensity is greater than a first threshold value, the backlight source of the backlight module is turned off or turned on; and when the incident light intensity is less than or equal to a first threshold value, the backlight source of the backlight module is started.
Has the beneficial effects that: the embodiment of the application provides a display panel and a display device, wherein the display panel comprises a liquid crystal display layer and an optical controller, the liquid crystal display layer comprises a photosensitive device arranged in an opening area of the display panel, and the photosensitive device is used for acquiring incident light intensity incident to the liquid crystal display layer; the optical controller is arranged on one side of the liquid crystal display layer, which deviates from the light outgoing direction of the display panel, and comprises a first liquid crystal layer, wherein the first liquid crystal layer is in a reflection state when the incident light intensity is greater than a first threshold value, and the first liquid crystal layer is in a transmission state when the incident light intensity is less than or equal to the first threshold value; this application is through deviating from on the liquid crystal display layer one side of display panel's light-emitting direction sets up optical controller, just among the optical controller first liquid crystal layer can be in be the reflection state when the incident light intensity is greater than first threshold value, simultaneously first liquid crystal layer also can be the transmission state when the incident light intensity is less than or equal to first threshold value, so that display panel avoids adopting the design of reflection metal rete when realizing reflection display function and transmission display function, and then has improved display panel's penetration rate.
Drawings
The following detailed description of embodiments of the present application is provided in conjunction with the appended drawings.
Fig. 1 is a schematic cross-sectional structure diagram of a display panel provided in an embodiment of the present application;
fig. 2 is a schematic cross-sectional structural diagram of a display device according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a display device in a transmissive display mode according to an embodiment of the present disclosure;
fig. 4 is a schematic light ray diagram of a display device in a reflective display mode according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 4, the present application discloses a display panel 100, which includes a liquid crystal display layer and an optical controller 50, wherein the liquid crystal display layer includes a photosensitive device 40 disposed in an opening area of the display panel 100, and the photosensitive device 40 is configured to obtain incident light intensity incident to the liquid crystal display layer; the optical controller 50 is disposed on a side of the liquid crystal display layer departing from a light emitting direction of the display panel 100, and the optical controller 50 includes a first liquid crystal layer 54;
wherein, when the incident light intensity is greater than a first threshold, the first liquid crystal layer 54 is in a reflective state; when the incident light intensity is less than or equal to the first threshold, the first liquid crystal layer 54 is in a transmissive state.
This application is through deviating from the liquid crystal display layer one side of display panel 100's light-emitting direction sets up optical controller 50, just in optical controller 50 first liquid crystal layer 54 can be in be the reflection state when the incident light intensity is greater than first threshold value, simultaneously first liquid crystal layer 54 also can be in be the transmission state when the incident light intensity is less than or equal to first threshold value, so that display panel 100 avoids adopting the design of reflection metal rete when realizing reflection display function and transmission display function, and then has improved display panel 100's penetration rate.
The technical solution of the present application will now be described with reference to specific embodiments.
Fig. 1 is a schematic cross-sectional structure diagram of a display panel 100 according to an embodiment of the present disclosure. The display panel 100 comprises a liquid crystal display layer and an optical controller 50, the liquid crystal display layer comprises a photosensitive device 40 arranged in an opening area of the display panel 100, and the photosensitive device 40 is used for acquiring incident light intensity incident to the liquid crystal display layer; the optical controller 50 is disposed on a side of the liquid crystal display layer departing from a light emitting direction of the display panel 100, and the optical controller 50 includes a first liquid crystal layer 54;
wherein, when the incident light intensity is greater than a first threshold, the first liquid crystal layer 54 is in a reflective state; when the incident light intensity is less than or equal to the first threshold, the first liquid crystal layer 54 is in a transmissive state.
In the embodiment of the present application, the liquid crystal display layer includes a first substrate 11, a second substrate 21 disposed opposite to the first substrate 11, and a second liquid crystal layer 30 disposed between the first substrate 11 and the second substrate 21; a plurality of supporting columns 19 are further disposed between the first substrate 11 and the second substrate 21, and the supporting columns 19 are used for supporting the second substrate 21.
In the embodiment of the present application, a thin film transistor array layer, a multi-layer insulating layer 17 disposed on the thin film transistor array layer, and a pixel electrode layer 18 disposed on the multi-layer insulating layer 17 are further disposed on the first substrate 11.
Specifically, the thin film transistor array layer includes at least one switching transistor, where the switching transistor includes a buffer layer 12 disposed on the first substrate 11, a gate metal layer 13 disposed on the buffer layer 12, a gate insulating layer 14 disposed on the buffer layer 12 and covering the gate metal layer 13, an active layer 15 disposed on the gate insulating layer 14, and a source drain metal layer 16 disposed on the gate insulating layer 14 and electrically connected to the active layer 15;
wherein an orthographic projection of the active layer 15 on the gate metal layer 13 is located in the gate metal layer 13; the source and drain metal layers 16 are electrically connected with the active layer 15, and the pixel electrode layer 18 is electrically connected with the source and drain metal layers 16 through a via hole.
Further, the first substrate 11 is preferably a glass substrate, the buffer layer 12 is made of silicon oxide, the active layer 15 is made of amorphous silicon, the gate insulating layer 14 is made of silicon nitride or silicon oxide, and the gate metal layer 13 and the source/drain metal layer 16 are made of any one of Mo, al, cu, and Ti.
Furthermore, the liquid crystal display layer further forms a gate line and a data line which are vertically crossed in space on the first substrate 11, the gate line and the data line define a pixel region, a switching transistor and the pixel electrode layer 18 are arranged in the pixel region, a gate of the switching transistor is connected with the gate line, a source of the switching transistor is connected with the data line, and a drain of the switching transistor is connected with the pixel electrode layer 18.
Specifically, the multi-layer insulating layer 17 includes a planarization layer made of an organic resin, preferably PFA plastic, and a passivation layer disposed on the planarization layer. In the resin layer made of the resin material, because the dielectric constant of the resin is low, the planarization layer which can cover the data lines and the gate lines can avoid the light leakage problem caused by the voltage of the data lines and the gate lines on the premise of not greatly improving the load of the display panel 100, so that the aperture opening ratio can be improved, and the transmittance of the liquid crystal display panel 100 is further improved due to the improvement of the aperture opening ratio.
Specifically, the passivation layer is made of silicon nitride or silicon oxide.
In this embodiment, the liquid crystal display layer further includes a photosensitive device 40 disposed in the opening area, the photosensitive device 40 is located on one side of the switch transistor, and the photosensitive device 40 is used for obtaining incident light intensity incident to the liquid crystal display layer.
Specifically, the photosensitive device 40 includes a photosensitive layer 41, and an input electrode 42 and an output electrode 43 disposed on the photosensitive layer 41, wherein the input electrode 42 and the output electrode 43 are disposed in the same layer and at an interval.
Further, the photosensitive layer 41 and the active layer 15 are both made of amorphous silicon, and the materials of the input electrode 42 and the output electrode 43 are respectively the same as the materials of the source/drain metal layer 16.
In the embodiment of the present application, the liquid crystal display layer further includes a color film layer 22 disposed on the second substrate 21 and close to the first substrate 11, and a common electrode layer 23 disposed on the color film layer 22 and close to the first substrate 11; the common electrode layer 23 and the pixel electrode layer 18 are made of transparent indium tin oxide, so that the aperture ratio of the display panel 100 is easily increased.
Specifically, the color film layer 22 includes a black matrix 222, the black matrix 222 forms a plurality of openings to define a plurality of sub-pixel regions, a color resist layer 221 is disposed in the openings, and the color resist layer 221 includes any one of a red sub-color resist layer, a green sub-color resist layer, and a blue sub-color resist layer.
In the embodiment of the present application, the display panel 100 further includes an optical controller 50 disposed on a side of the liquid crystal display layer departing from the light emitting direction of the display panel 100, and the optical controller 50 is configured to switch the display panel 100 between a reflective display mode and a transmissive display mode.
Specifically, in the embodiment of the present application, the optical controller 50 includes: a first substrate 51, a plurality of first metal traces 52 disposed on the first substrate 51, a first electrode 53 disposed on the first substrate 51 and covering the first metal traces 52, and a second electrode 55 disposed opposite to the first electrode 53, wherein a first liquid crystal layer 54 is disposed between the first electrode 53 and the second electrode 55, and the second electrode 55 is disposed on a side of the first substrate 11 away from the second liquid crystal layer 30;
wherein, when the incident light intensity is greater than a first threshold, the first liquid crystal layer 54 is in a reflective state; when the incident light intensity is less than or equal to the first threshold, the first liquid crystal layer 54 is in a transmissive state.
In the embodiment of the present application, the first threshold is 2000nits; the first metal trace 52 is made of the same material as the gate metal layer 13 or the source/drain metal layer 16; the first electrode 53 and the second electrode 55 are made of transparent indium tin oxide, which is easy to improve the aperture ratio of the display panel 100.
Further, the second liquid crystal layer 30 includes a cholesterol liquid crystal; the driving electric field between the first electrode 53 and the second electrode 55 switches the first liquid crystal layer 54 between a reflective state and a transmissive state.
In the embodiment of the present application, the thickness of the first liquid crystal layer 54 ranges from 3.0um to 3.2um, and the rotation angle of the director of the liquid crystal molecules in the first liquid crystal layer 54 ranges from 0 ° to 360 °; the thickness of the first liquid crystal layer 54 affects the transmittance of the optical controller 50, and the magnitude of the rotation angle of the director of the liquid crystal molecules in the first liquid crystal layer 54 affects the exit angle of the light passing through the optical controller 50.
Further, the thickness of the second liquid crystal layer 30 may be adjusted to be the same as that of the first liquid crystal layer 54 by a liquid crystal dropping device. This reduces the manufacturing cost of the display panel 100 without affecting the transmittance of the display panel 100.
In the embodiment of the present application, the display panel 100 further includes a printed circuit board disposed on the first substrate 11;
wherein the photosensitive device 40 and the optical controller 50 are electrically connected to the printed circuit board, respectively. This arrangement allows the electrical signals of the photosensitive devices 40 to be transmitted to the optical controller 50 through the printed circuit board.
In the embodiment of the present application, when the driving electric field between the first electrode 53 and the second electrode 55 is smaller than a second threshold, the liquid crystal molecules in the first liquid crystal layer 54 are not deflected, and the first liquid crystal layer 54 is in a reflective state;
when the driving electric field is greater than a third threshold, liquid crystal molecules of the first liquid crystal layer 54 are deflected, and the first liquid crystal layer 54 is in a transmissive state;
when the driving electric field is between the second threshold and the third threshold, the liquid crystal molecules in the first liquid crystal layer 54 are in a spiral state, and the first liquid crystal layer 54 is in a reflective state.
The value range of the second threshold is between 0 and 6, and the third threshold is larger than 12.
The hierarchical structure of the cholesterol liquid crystal is similar to that of a linear liquid crystal, when viewed from the Z-axis direction, the director of the cholesterol liquid crystal is spirally distributed along with the difference of one layer and one layer, the rotating directions of the director are all positioned on X and Y planes, but the directions are different, and the director rotates 360 degrees. The required thickness of the molecule is called the "intensity" (pitch). Since each layer is similar to a linear liquid crystal, it is also called "C crystal phase". But different optical and electrical differences can be generated due to different directors, and different performance characteristics can be generated.
Cholesteric liquid crystals are also called helical liquid crystal materials because their molecules are arranged in a helical pattern. The cholesterol liquid crystal material has unique light reflection selection characteristics, and the cholesterol liquid crystal material doped with proper additives can only reflect color light with specific wavelength. Under the action of an applied voltage, the spiral state of the molecules can be changed, so that the light reflectivity is changed, and after the applied voltage disappears, the cholesterol liquid crystal molecules can still keep the same arrangement state and cannot be changed.
Specifically, when the driving electric field is 6V, the liquid crystal molecules in the first liquid crystal layer 54 are in a vertical standing state; when the driving electric field is 12V, the liquid crystal molecules in the first liquid crystal layer 54 are in a horizontal standing state; when the driving electric field is between 6V and 12V, the liquid crystal molecules in the first liquid crystal layer 54 are in a spiral state, and the first liquid crystal layer 54 is in a reflective state.
As shown in fig. 2, an embodiment of the present application further provides a display device, where the display device includes the display panel 100 as described above and a backlight module 200 disposed on a side of the optical controller 50 away from the liquid crystal display layer;
when the incident light intensity is greater than a first threshold, the backlight source of the backlight module 200 is turned off or turned on; when the incident light intensity is less than or equal to the first threshold, the backlight source of the backlight module 200 is turned on.
Fig. 3 is a schematic light ray diagram of the display device in the transmissive display mode according to the embodiment of the present application; when the photosensitive device 40 detects that the external incident light intensity is less than or equal to a first threshold (200 nits), the external light enters the photosensitive layer 41 of the photosensitive device 40, the external light changes the impedance of the photosensitive layer 41, the photosensitive device 40 feeds back information through the impedance change of the photosensitive layer 41, an optical signal is converted into a first electrical signal, the first electrical signal is transmitted to the printed circuit board, a driving chip connected to the printed circuit board generates a second electrical signal, the second electrical signal is transmitted to the optical controller 50 through the first metal wire 52, and the optical controller 50 generates a driving electric field (the voltage is greater than 12V) between the first electrode 53 and the second electrode 55; at this time, the liquid crystal molecules in the first liquid crystal layer 54 are in a horizontal standing state, and the first liquid crystal layer 54 is in a transparent state; the backlight module 200 of the display device is used as a light source, and light emitted from the backlight module 200 passes through the first liquid crystal layer 54 and exits the second substrate 21.
Fig. 4 is a schematic light ray diagram of the display device in the reflective display mode according to the embodiment of the present application; when the photosensitive device 40 detects that the external incident light intensity is greater than a first threshold (200 nits), the external light is incident on the photosensitive layer 41 of the photosensitive device 40, the external light changes the impedance of the photosensitive layer 41, the photosensitive device 40 feeds back information through the impedance change of the photosensitive layer 41, and converts an optical signal into a first electrical signal, the first electrical signal is transmitted to the printed circuit board, a driving chip connected to the printed circuit board generates a second electrical signal and transmits the second electrical signal to the optical controller 50 through the first metal routing 52, the optical controller 50 is turned off or the optical controller 50 is turned on to generate a driving electric field (voltage is less than 12V) between the first electrode 53 and the second electrode 55; at this time, the liquid crystal molecules in the first liquid crystal layer 54 are helical, and can change the polarization state of light, and the first liquid crystal layer 54 is in a reflective state; the ambient light is used as a light source of the display panel 100, and light emitted from the ambient light is reflected to the outside of the second substrate 21 through the first liquid crystal layer 54 (at this time, the backlight source of the backlight module 200 is turned on or off).
To sum up, the embodiment of the present application provides a display panel 100 and a display device, where the display panel 100 includes a liquid crystal display layer and an optical controller 50, the liquid crystal display layer includes a photosensitive device 40 disposed in an opening area of the display panel 100, and the photosensitive device 40 is configured to obtain incident light intensity incident to the liquid crystal display layer; the optical controller 50 is disposed on a side of the liquid crystal display layer departing from a light emitting direction of the display panel 100, and the optical controller 50 includes a first liquid crystal layer 54, where when the incident light intensity is greater than a first threshold, the first liquid crystal layer 54 is in a reflective state, and when the incident light intensity is less than or equal to the first threshold, the first liquid crystal layer 54 is in a transmissive state; this application is through the liquid crystal display layer deviates from one side of display panel 100's light-emitting direction sets up optical controller 50, just in optical controller 50 first liquid crystal layer 54 can be in be the reflection state when the incident light intensity is greater than first threshold value, simultaneously first liquid crystal layer 54 also can be in be the transmission state when the incident light intensity is less than or equal to first threshold value, so that display panel 100 avoids adopting the design of reflection metal rete when realizing reflection display function and transmission display function, and then has improved display panel 100's penetration rate.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel 100 and the display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display panel, comprising:
the liquid crystal display layer comprises a photosensitive device arranged in an opening area of the display panel, and the photosensitive device is used for acquiring incident light intensity incident to the liquid crystal display layer;
the optical controller is arranged on one side, away from the light emitting direction of the display panel, of the liquid crystal display layer and comprises a first liquid crystal layer;
when the incident light intensity is greater than a first threshold value, the first liquid crystal layer is in a reflection state; when the incident light intensity is smaller than or equal to a first threshold value, the first liquid crystal layer is in a transmission state.
2. The display panel according to claim 1, wherein the optical controller includes a first electrode and a second electrode, the first liquid crystal layer is located between the first electrode and the second electrode, and a driving electric field between the first electrode and the second electrode switches the first liquid crystal layer between a reflective state and a transmissive state;
wherein the second liquid crystal layer comprises cholesterol liquid crystal.
3. The display panel according to claim 2, wherein when the driving electric field is smaller than a second threshold, the liquid crystal molecules in the first liquid crystal layer are not deflected, and the first liquid crystal layer is in a reflective state;
when the driving electric field is larger than a third threshold value, liquid crystal molecules of the first liquid crystal layer deflect, and the first liquid crystal layer is in a transmission state;
the value range of the second threshold is between 0 and 6, and the third threshold is larger than 12.
4. The display panel of claim 2, wherein the optical controller further comprises:
a first substrate; and
and the first metal wires are arranged between the first substrate and the first electrode, and the first electrode is electrically connected with the first metal wires.
5. The display panel of claim 1 wherein the first liquid crystal layer has a thickness in the range of 3.0um to 3.2um and the director rotation angle of the liquid crystal molecules in the first liquid crystal layer is in the range of 0 to 360 °.
6. The display panel according to claim 5, wherein the liquid crystal display layer comprises a second liquid crystal layer having a thickness which is the same as a thickness of the first liquid crystal layer.
7. The display panel according to claim 1, wherein the liquid crystal display layer further comprises a first substrate and a second substrate disposed opposite to the first substrate, the photosensitive device being disposed on the first substrate;
the photosensitive device comprises a photosensitive layer, and an input electrode and an output electrode which are arranged on the photosensitive layer, wherein the input electrode and the output electrode are arranged at the same layer and at intervals.
8. The display panel according to claim 7, wherein a switching transistor is further provided on the first substrate on a side of the light sensing device, the switching transistor comprising:
the grid metal layer is arranged on the first substrate;
the grid electrode insulating layer is arranged on the first substrate and covers the grid electrode metal layer;
the active layer is arranged on the grid electrode insulating layer, and the orthographic projection of the active layer on the grid electrode metal layer is positioned in the grid electrode metal layer; and
the source drain metal layer is arranged on the grid electrode insulating layer and is electrically connected with the active layer;
the photosensitive layer and the active layer are made of amorphous silicon, and the input electrode and the output electrode are made of the same material as the source drain electrode metal layer respectively.
9. The display panel of claim 7, further comprising a printed circuit board disposed on the first substrate;
wherein, the sensitization device and the optical controller are respectively electrically connected with the printed circuit board.
10. A display device, comprising the display panel according to any one of claims 1 to 9 and a backlight module disposed on a side of the optical controller away from the liquid crystal display layer;
when the incident light intensity is greater than a first threshold value, the backlight source of the backlight module is closed or opened; and when the incident light intensity is less than or equal to a first threshold value, the backlight source of the backlight module is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931954.9A CN115308955A (en) | 2022-08-04 | 2022-08-04 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931954.9A CN115308955A (en) | 2022-08-04 | 2022-08-04 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115308955A true CN115308955A (en) | 2022-11-08 |
Family
ID=83858837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210931954.9A Pending CN115308955A (en) | 2022-08-04 | 2022-08-04 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115308955A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126853A (en) * | 2006-08-15 | 2008-02-20 | Nec液晶技术株式会社 | Image display |
| CN102411225A (en) * | 2010-09-17 | 2012-04-11 | 上海天马微电子有限公司 | Liquid crystal display device and driving mode thereof |
| CN113589579A (en) * | 2021-07-23 | 2021-11-02 | Tcl华星光电技术有限公司 | Semi-transparent semi-reflection display device |
-
2022
- 2022-08-04 CN CN202210931954.9A patent/CN115308955A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126853A (en) * | 2006-08-15 | 2008-02-20 | Nec液晶技术株式会社 | Image display |
| JP2008046329A (en) * | 2006-08-15 | 2008-02-28 | Nec Lcd Technologies Ltd | Liquid crystal display element and electronic device mounting same |
| CN102411225A (en) * | 2010-09-17 | 2012-04-11 | 上海天马微电子有限公司 | Liquid crystal display device and driving mode thereof |
| CN113589579A (en) * | 2021-07-23 | 2021-11-02 | Tcl华星光电技术有限公司 | Semi-transparent semi-reflection display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4167335B2 (en) | Liquid crystal display | |
| JP4002105B2 (en) | Liquid crystal display | |
| US6927818B2 (en) | Transflective liquid crystal device having light-transmitting films overlapping light reflective films and method of manufacturing such a device | |
| KR101174164B1 (en) | Transflective Liquid Crystal Display device | |
| US6900864B2 (en) | Transflective electro-optical device and electronic apparatus | |
| US7671943B2 (en) | Transflective liquid crystal display panel and fabricating method thereof | |
| WO2005006068A1 (en) | Display unit | |
| WO2004036300A1 (en) | Display device and display device mounting device | |
| KR20020015097A (en) | Reflective and Transflective Liquid Crystal Display Device of using a Black Resin | |
| US7092062B2 (en) | Liquid crystal display device and electronic apparatus having cholesteric liquid crystal reflective layer | |
| JP2007017798A (en) | Liquid crystal display device | |
| CN107843996B (en) | Touch display panel and display device | |
| JP3534097B2 (en) | Liquid crystal device and electronic equipment provided with the liquid crystal device | |
| JP3369502B2 (en) | Active matrix type liquid crystal display device and manufacturing method thereof | |
| US6774970B1 (en) | Liquid crystal panel | |
| US20080273130A1 (en) | Display device | |
| JP2000267077A (en) | Liquid crystal display device and electronic equipment | |
| US20120038873A1 (en) | Reflection-type liquid crystal display device | |
| CN115308955A (en) | Display panel and display device | |
| KR20180077940A (en) | Borderless display device | |
| JPH10333168A (en) | Device and system for liquid crystal | |
| CN113641016A (en) | Display device | |
| JP2000250056A (en) | Liquid crystal display device and electronic equipment | |
| JP4292863B2 (en) | Electro-optical device substrate, electro-optical device, electro-optical device manufacturing method, and electronic apparatus | |
| CN114924447B (en) | Array substrate, display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |