CN114647113A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
- Publication number
- CN114647113A CN114647113A CN202210276918.3A CN202210276918A CN114647113A CN 114647113 A CN114647113 A CN 114647113A CN 202210276918 A CN202210276918 A CN 202210276918A CN 114647113 A CN114647113 A CN 114647113A
- Authority
- CN
- China
- Prior art keywords
- substrate
- display module
- wavelength
- refractive index
- liquid crystal
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 104
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 44
- 230000010287 polarization Effects 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims description 78
- 230000003595 spectral effect Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 61
- 238000001228 spectrum Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000000059 patterning Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- -1 region Substances 0.000 description 1
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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133618—Illuminating devices for ambient light
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)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display module and a display device, relates to the technical field of display, and aims to solve the problems of complex optical structure, high cost and the like of a reflective liquid crystal display. The display module assembly includes: the display panel comprises an upper polarizer, a display panel, a selective wavelength transmission film, a lower polarizer and a backlight source which are arranged in sequence; the upper polarizer is provided with a first transmission axis and is used for generating polarized light with the polarization direction parallel to the first transmission axis; the display panel comprises a liquid crystal display panel; the lower polarizer is provided with a second transmission axis and is used for generating polarized light with the polarization direction parallel to the second transmission axis; the selective wavelength transmission film is capable of transmitting a target light having a specific wavelength emitted from the backlight source. The display module is used for displaying.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module and a display device.
Background
The intelligent wearing and electronic price tag is a new market with huge potential, the intelligent wearing technology is developed rapidly, but the equipment is small, and a large-capacity battery is difficult to bear, so that the reflective Liquid Crystal Display (LCD for short) is widely applied to the intelligent wearing and electronic price tag market, and has a far-reaching prospect.
However, the reflective liquid crystal display has the problems of complicated optical structure, high cost and the like.
Disclosure of Invention
The invention aims to provide a display module and a display device, which are used for solving the problems of complex optical structure, higher cost and the like of a reflective liquid crystal display.
In order to achieve the above purpose, the invention provides the following technical scheme:
a first aspect of the present invention provides a display module, including: the display panel comprises an upper polarizer, a display panel, a selective wavelength transmission film, a lower polarizer and a backlight source which are arranged in sequence;
the upper polarizer is provided with a first transmission axis and is used for generating polarized light with the polarization direction parallel to the first transmission axis; the display panel comprises a liquid crystal display panel; the lower polarizer is provided with a second transmission axis and is used for generating polarized light with the polarization direction parallel to the second transmission axis;
the selective wavelength transmission film is capable of transmitting a target light having a specific wavelength emitted from the backlight source.
Optionally, the selective wavelength transparent film comprises a plurality of first refractive index layers and a plurality of second refractive index layers; the first refractive index layer and the second refractive index layer are alternately arranged, the refractive index of the first refractive index layer is larger than that of the second refractive index layer, the first refractive index layer comprises an anisotropic film layer, and the second refractive index layer comprises an isotropic film layer.
Optionally, the backlight source can also emit non-target light without specific wavelengths, and the selective wavelength transmission film can prevent the non-target light from transmitting.
Optionally, the selective wavelength transmission film is divided into multiple groups of selective transmission structures which are sequentially arranged, and each selective transmission structure includes at least one first refractive index layer and at least one second refractive index layer; each set of selectively permeable structures blocks non-target light of a corresponding wavelength from passing therethrough.
Optionally, the wavelengths of the target light include a wavelength corresponding to a red light spectrum peak, a wavelength corresponding to a green light spectrum peak, and a wavelength corresponding to a blue light spectrum peak.
Optionally, the target light includes at least one of a first target light, a second target light and a third target light;
the wavelength of the first target light is between 440nm and 460 nm;
the wavelength of the second target light is between 530nm and 550 nm;
the wavelength of the third target light is between 620nm and 640 nm.
Optionally, the selective wavelength transmission film is capable of transmitting light of the same wavelength as the target light in the ambient light.
Optionally, the liquid crystal display panel includes an ADS panel, where the ADS panel includes a first substrate and a second substrate that are disposed opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; the ADS panel further comprises a first electrode and a second electrode which are positioned on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
Optionally, the liquid crystal display panel includes a VA panel, and the VA panel includes a first substrate and a second substrate that are disposed opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; the VA panel further comprises a first electrode and a second electrode which are positioned on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
Optionally, the liquid crystal display panel includes a TN panel, and the TN panel includes a first substrate and a second substrate that are oppositely disposed, and a liquid crystal layer located between the first substrate and the second substrate; the TN panel includes first and second electrodes on the first and second substrates, respectively.
Optionally, the liquid crystal display panel includes an ECB panel, and the ECB panel includes a first substrate and a second substrate that are disposed opposite to each other, and a liquid crystal layer located between the first substrate and the second substrate; the ECB panel includes first and second electrodes on the first and second substrates, respectively.
Based on the above technical solution of the display module, a second aspect of the invention provides a display device, which includes the above display module.
The technical scheme provided by the invention comprises an upper polarizer, a display panel, a selective wavelength transmission film, a lower polarizer and a backlight source which are arranged in sequence; the selective wavelength transmission film can transmit target light rays with specific wavelengths emitted by the backlight source and can block non-target light rays without specific wavelengths emitted by the backlight source from transmitting. According to the technical scheme provided by the invention, the selective wavelength transmission film can transmit the target light with the wavelength range in the designated wave band according to actual needs, and the wavelength range which can be transmitted and reflected by the selective wavelength transmission film can be controlled according to the actual needs, so that the transmission and reflection functions of the display module are realized. In the technical scheme provided by the invention, the transmission type display and the reflection type display can be realized only by arranging the selective wavelength transmission film, and the problems of complicated optical structure, high cost and the like of a reflection type liquid crystal display are solved. In the technical scheme provided by the invention, under the environment with darker light, the backlight source provides brightness to realize transmission display, and the transmission display is in a normally black mode; in bright light environment, the reflective display is realized by total reflection of ambient light, which is also a normally black mode.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a display module in a dark state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display module according to an embodiment of the present invention in a bright state;
fig. 3 is a dark state light path diagram of the display module in the reflective mode according to the embodiment of the invention;
fig. 4 is a bright-state light path diagram of the display module according to the embodiment of the present invention in the reflective mode;
FIG. 5 is a diagram of dark state light paths of the display module in the transmissive mode according to the embodiment of the invention;
fig. 6 is a bright-state light path diagram of the display module in the transmissive mode according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first refractive index layer and a second refractive index layer provided in an embodiment of the present invention;
FIG. 8 is a schematic illustration of the refractive indices of a first refractive index layer and a second refractive index layer provided by an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a selective wavelength transmission film according to an embodiment of the present invention;
FIG. 10 is a spectrum of a backlight and ambient light provided by an embodiment of the invention;
fig. 11 is a spectrum diagram of the backlight source and the ambient light after passing through the selective wavelength transmission film according to the embodiment of the present invention.
Reference numerals are as follows:
10-an upper polarizer, 11-a display panel,
110-liquid crystal layer, 12-wavelength selective transmission film,
121-a first refractive index layer, 122-a second refractive index layer,
123-substrate, 124-protective layer,
13 lower polarizer, 14 backlight.
Detailed Description
In order to further explain the display module and the display device provided by the embodiment of the invention, the following detailed description is made with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, an embodiment of the invention provides a display module, including: the display panel comprises an upper polarizer 10, a display panel 11, a selective wavelength transmission film 12, a lower polarizer 13 and a backlight source 14 which are arranged in sequence;
the upper polarizer 10 has a first transmission axis for generating polarized light having a polarization direction parallel to the first transmission axis; the display panel 11 includes a liquid crystal display panel 11; the lower polarizer 13 has a second transmission axis for generating polarized light having a polarization direction parallel to the second transmission axis;
the selective wavelength transmission film 12 is capable of transmitting target light having a specific wavelength emitted from the backlight 14.
Illustratively, the display module includes an upper polarizer 10 and a lower polarizer 13, which are oppositely disposed. The upper polarizer 10 is located on the light emitting side of the display panel 11, and the upper polarizer 10 has a first transmission axis for generating polarized light with a polarization direction parallel to the first transmission axis. The lower polarizer 13 is located on the non-light-emitting side of the display panel 11, and the lower polarizer 13 has a second light transmission axis and is configured to generate polarized light with a polarization direction parallel to the second light transmission axis. The second light transmission axis is perpendicular to the first light transmission axis.
Illustratively, the display panel 11 includes a liquid crystal display panel 11, but is not limited thereto. The liquid crystal display panel 11 includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer 110 between the first substrate and the second substrate. The liquid crystal display panel 11 may adopt a conventional liquid crystal display panel 11 structure.
Illustratively, the wavelength selective transmission film 12 is capable of transmitting target light emitted by the backlight 14 having a particular wavelength, while the wavelength selective transmission film 12 is capable of blocking non-target light emitted by the backlight 14 that does not have the particular wavelength from transmitting.
Illustratively, when the display module operates in the transmissive mode, the backlight 14 is turned on. When the display module operates in the reflective mode, the backlight 14 is not turned on. The reflection direction of the selective wavelength transmission film 12 is perpendicular to the first transmission axis, and the transmission direction of the selective wavelength transmission film 12 is parallel to the first transmission axis
As shown in fig. 3 and 4, when the display module operates in the reflective mode, under the condition of no power supply, ambient light passes through the upper polarizer 10 and then becomes linearly polarized light, passes through the display panel 11 without power supply and then becomes linearly polarized light, and then enters the selective wavelength transmission film 12, at this time, the polarization direction of the linearly polarized light is parallel to the transmission direction of the selective wavelength transmission film 12, the linearly polarized light passes through the selective wavelength transmission film 12 and enters the lower polarizer 13, and is absorbed by the lower polarizer 13, light cannot return, and the display module is in a dark state. Under the condition of electrification, ambient light is linearly polarized after passing through the upper polarizer 10, and is changed into linearly polarized light with the light polarization rotated by 90 degrees after passing through the electrified display panel 11, and then enters the selective wavelength transmission film 12, because the selective wavelength transmission film 12 has the reflection characteristic on light vertical to the paper surface, the light is reflected (does not enter the lower polarizer 13) back to the display panel 11 through the selective wavelength transmission film 12, and when the light exits from the display panel 11, the light is still linearly polarized on the ordinary paper surface, and finally the light exits through the upper polarizer 10, and the display module is in a bright state.
As shown in fig. 5 and 6, when the display module operates in the transmissive mode, under the condition of no power supply, the target light emitted by the backlight 14 passes through the selective wavelength transmission film 12 and becomes linearly polarized light, and then enters the display panel 11, the liquid crystal in the display panel 11 without power supply rotates to change the polarization direction and is absorbed by the upper polarizer 10, and the display module is in a dark state. Under the condition of electrification, target light emitted by the backlight source 14 passes through the selective wavelength transmission film 12 to become linearly polarized light, then enters the display panel 11, liquid crystals in the electrified display panel 11 change the rotation direction of the linearly polarized light, and the linearly polarized light passes through the upper polarizer 10, so that the display module is in a bright state.
According to the specific structure of the display module, the display module provided in the embodiment of the invention includes an upper polarizer 10, a display panel 11, a selective wavelength transmission film 12, a lower polarizer 13 and a backlight source 14, which are sequentially disposed; the selective wavelength transmission film 12 is capable of transmitting target light having a specific wavelength emitted from the backlight 14 and blocking transmission of non-target light having no specific wavelength emitted from the backlight 14.
In the display module provided in the embodiment of the present invention, the selective wavelength transmission film 12 can transmit the target light with a wavelength range in a designated waveband according to actual needs, and can control the wavelength range that the selective wavelength transmission film 12 can transmit and reflect according to actual needs, so as to implement the transmission and reflection functions of the display module. The display module provided by the embodiment of the invention also realizes high contrast and high color gamut display.
In the display module provided by the embodiment of the invention, the transmissive display and the reflective display can be realized only by arranging the selective wavelength transmission film 12, so that the problems of complicated optical structure, high cost and the like of the reflective liquid crystal display are solved.
In the display module provided by the embodiment of the invention, under the environment with darker light, the backlight source 14 provides brightness to realize transmission display, and the display module is in a normally black mode; in bright light environment, the reflective display is realized by using the total reflection of ambient light, which is also a normally black mode.
As shown in fig. 7-9, in some embodiments, the selective wavelength transparent film 12 includes a plurality of first refractive index layers 121 and a plurality of second refractive index layers 122; the first refractive index layers 121 and the second refractive index layers 122 are alternately disposed, the refractive index of the first refractive index layers 121 is greater than that of the second refractive index layers 122, the first refractive index layers 121 include an anisotropic film layer, and the second refractive index layers 122 include an isotropic film layer.
Illustratively, the selective wavelength transmission film 12 further includes a substrate 123 and a protective layer 124.
Illustratively, the polarized light of the plurality of first refractive index layers 121 in the same direction has the same or different refractive indexes. Polarized light in the same direction of the plurality of second refractive index layers 122 has the same or different refractive index.
Fig. 7 is a schematic diagram of refractive indexes of the selective wavelength transmission film 12 in all directions according to an embodiment of the present invention.
Fig. 8 shows the refractive index of the second refractive index layer 122a and the first refractive index layer 121b in fig. 7 for polarized light of different polarization directions. The second refractive index layer 122a is a uniform medium having the same refractive index n of 1.57 for polarized light having a polarization direction parallel to the x direction and parallel to the y direction. The first refractive index layer 121b is a birefringent medium, and has a refractive index of 1.80 for polarized light having a polarization direction parallel to the x direction and a refractive index of 1.57 for polarized light parallel to the y direction.
In some embodiments, the backlight 14 can also emit non-target light without specific wavelengths, and the selective wavelength transmission film 12 can block the non-target light from transmitting.
In the display module provided by the above embodiment, the selective wavelength transmission film 12 is arranged to transmit the target light with a wavelength range in a specific waveband, and to prevent the non-target light from transmitting, so that the selective wavelength transmission film 12 can transmit the target light satisfying a specific wavelength range, and the high color gamut transmission function of the display module is realized through the target light.
In some embodiments, the selective wavelength transparent film 12 is divided into a plurality of sets of selectively transparent structures arranged in sequence, each selectively transparent structure including at least one first refractive index layer 121 and at least one second refractive index layer 122; each set of selectively permeable structures blocks non-target light of a corresponding wavelength from passing therethrough.
Illustratively, the wavelength of the non-target light blocked by each set of selectively transparent structures is different.
In the display module provided in the above embodiment, the reflection spectrum of the selective wavelength transmission film 12 is adjusted by deleting the selective transmission structure with a specific refractive index. Through deleting the selection structure corresponding to the target light, the selective wavelength transmission film 12 does not prevent the target light from transmitting, and the display module can realize transmission display through the transmitted target light.
In the display module provided by the embodiment, the manufacturing process is simple, and the yield is favorably improved.
In the display module provided by the embodiment, the wavelength range of the target light can be set in the designated range according to the requirement, so that the color gamut of the display module during transmission display is favorably improved.
In some embodiments, the target light has wavelengths that include a wavelength corresponding to a red spectral peak, a wavelength corresponding to a green spectral peak, and a wavelength corresponding to a blue spectral peak.
Illustratively, the target light has wavelengths including 450nm, 540nm, and 630 nm. Light with the wavelength of 450nm, 540nm and 630nm can penetrate through the selective wavelength transmission film 12, and the transmission function of the display module is achieved.
In the display module assembly that above-mentioned embodiment provided, set up selective wavelength passes through membrane 12 can pass through red light spectral peak, and the wavelength that green light spectral peak corresponds and the light that blue light spectral peak corresponds are favorable to promoting the colour gamut when display module assembly transmission shows.
Moreover, the wavelength of blue light transmitted by the backlight is 450nm, so that the eye protection effect is achieved, and the color gamut of the transmission mode can be improved.
In some embodiments, the target rays include at least one of a first target ray, a second target ray, and a third target ray;
the wavelength of the first target light is between 440nm and 460 nm;
the wavelength of the second target light is between 530nm and 550 nm;
the wavelength of the third target light is between 620nm and 640 nm.
In the display module assembly that above-mentioned embodiment provided, set up selective wavelength passes through membrane 12 can pass through the wavelength range between 440nm to 460nm, between 530nm to 550nm to and 620nm to 640nm between the target light, not only make the display module assembly can realize transmission display and reflection display, still is favorable to promoting the colour gamut when display module assembly transmission shows.
The above arrangement can achieve a luminance of 34% of the original luminance of the backlight transmitted through the selective wavelength transmission film 12, and a reflectance of 82% of the ambient light D65 passing through the selective wavelength transmission film 12.
In some embodiments, the selective wavelength transmission film 12 is capable of transmitting light of the same wavelength as the target light in ambient light.
As shown in fig. 10, the spectrum of the light emitted from the backlight 14 and the spectrum of the ambient light D65 are shown. Fig. 11 shows a spectrum in which light emitted from the backlight 14 is transmitted through the selective wavelength transmission film 12, and a spectrum in which ambient light D65 is reflected by the selective wavelength transmission film 12.
In fig. 10 and 11, a1 represents a spectrum of the ambient light D65, and a2 represents a spectrum of the light emitted from the backlight 14.
Illustratively, the selective wavelength transmission film 12 is capable of transmitting light of the ambient light having the same wavelength as the target light, and the selective wavelength transmission film 12 is capable of reflecting light of the ambient light having the same wavelength as the non-target light.
In the display module provided by the above embodiment, the selective wavelength transmission film 12 is provided, so that the transmission display and the reflection display of the display module are realized.
In some embodiments, the liquid crystal display panel 11 includes an ADS panel including a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer 110 between the first substrate and the second substrate; the ADS panel further comprises a first electrode and a second electrode which are located on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
In some embodiments, the liquid crystal display panel 11 includes a VA panel including a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer 110 between the first substrate and the second substrate; the VA panel further comprises a first electrode and a second electrode which are positioned on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
In some embodiments, the liquid crystal display panel 11 includes a TN panel including first and second substrates disposed opposite to each other, and a liquid crystal layer 110 between the first and second substrates; the TN panel includes first and second electrodes on the first and second substrates, respectively.
In some embodiments, the liquid crystal display panel 11 includes an ECB panel including a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer 110 between the first substrate and the second substrate; the ECB panel includes first and second electrodes on the first and second substrates, respectively.
Illustratively, the first substrate may be a glass substrate or a quartz substrate. The second substrate may be a glass substrate or a quartz substrate.
Illustratively, the first electrode and the second electrode are both located between the respective substrate and the liquid crystal layer 110.
The embodiment of the invention also provides a display device which comprises the display module provided by the embodiment.
The display module provided in the above embodiment includes an upper polarizer 10, a display panel 11, a selective wavelength transparent film 12, a lower polarizer 13, and a backlight source 14, which are sequentially disposed; the selective wavelength transmission film 12 is capable of transmitting target light having a specific wavelength emitted from the backlight 14 and blocking transmission of non-target light having no specific wavelength emitted from the backlight 14. In the display module provided in the above embodiment, the selective wavelength transmission film 12 can transmit the target light with a wavelength range in a designated waveband according to actual needs, and the wavelength range that the selective wavelength transmission film 12 can transmit and reflect can be controlled according to actual needs, so as to realize the transmission and reflection functions of the display module. In the display module provided in the above embodiment, transmissive display and reflective display can be implemented only by disposing the selective wavelength transmission film 12, which solves the problems of complicated optical structure and high cost of the reflective liquid crystal display. In the display module provided in the above embodiment, in a dark environment, the backlight 14 provides brightness to realize transmissive display, which is a normally black mode; in bright light environment, the reflective display is realized by using the total reflection of ambient light, which is also a normally black mode.
The display device provided by the embodiment of the invention has the beneficial effects when comprising the display module, and the description is omitted.
The display device may be: the display device comprises a television, a display, a digital photo frame, a mobile phone, a tablet personal computer and any other product or component with a display function, wherein the display device further comprises a flexible circuit board, a printed circuit board, a back plate and the like.
It should be noted that "same layer" in the embodiments of the present invention may refer to a film layer on the same structural layer. Or, for example, the film layer on the same layer may be a layer structure formed by forming a film layer for forming a specific pattern by using the same film forming process and then patterning the film layer by using the same mask plate through a one-time patterning process. Depending on the specific pattern, one patterning process may include multiple exposure, development or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.
In the embodiments of the methods of the present invention, the sequence numbers of the steps are not used to limit the sequence of the steps, and for those skilled in the art, the sequence of the steps is not changed without creative efforts.
It should be noted that, in this specification, each embodiment is described in a progressive manner, and the same and similar parts between the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the method embodiments, since they are substantially similar to the product embodiments, they are described simply, and reference may be made to the partial description of the product embodiments for relevant points.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected," "coupled," or "connected," and the like, are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. A display module, comprising: the display panel comprises an upper polarizer, a display panel, a selective wavelength transmission film, a lower polarizer and a backlight source which are arranged in sequence;
the upper polarizer is provided with a first transmission axis and is used for generating polarized light with the polarization direction parallel to the first transmission axis; the display panel comprises a liquid crystal display panel; the lower polarizer is provided with a second transmission axis and is used for generating polarized light with the polarization direction parallel to the second transmission axis;
the selective wavelength transmission film is capable of transmitting a target light having a specific wavelength emitted from the backlight source.
2. The display module of claim 1, wherein the selective wavelength transparent film comprises a plurality of first refractive index layers and a plurality of second refractive index layers; the first refractive index layer and the second refractive index layer are alternately arranged, the refractive index of the first refractive index layer is larger than that of the second refractive index layer, the first refractive index layer comprises an anisotropic film layer, and the second refractive index layer comprises an isotropic film layer.
3. The display module of claim 2, wherein the backlight source is further capable of emitting non-target light without specific wavelengths, and the selective wavelength transmission film is capable of blocking the non-target light from transmitting.
4. The display module of claim 3, wherein the selectively wavelength transparent film is divided into a plurality of sets of selectively transparent structures arranged in sequence, each selectively transparent structure comprising at least one first refractive index layer and at least one second refractive index layer; each set of selectively permeable structures blocks non-target light of a corresponding wavelength from passing therethrough.
5. The display module of claim 1, wherein the target light has wavelengths including a wavelength corresponding to a red spectral peak, a wavelength corresponding to a green spectral peak, and a wavelength corresponding to a blue spectral peak.
6. The display module of claim 5, wherein the object rays comprise at least one of a first object ray, a second object ray, and a third object ray;
the wavelength of the first target light is between 440nm and 460 nm;
the wavelength of the second target light is between 530nm and 550 nm;
the wavelength of the third target light is between 620nm and 640 nm.
7. The display module of claim 1, wherein the selective wavelength transparent film is capable of transmitting light of ambient light having the same wavelength as the target light.
8. The display module according to claim 1, wherein the liquid crystal display panel comprises an ADS panel, the ADS panel comprises a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer located between the first substrate and the second substrate; the ADS panel further comprises a first electrode and a second electrode which are positioned on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
9. The display module according to claim 1, wherein the liquid crystal display panel comprises a VA panel, the VA panel comprises a first substrate and a second substrate which are oppositely disposed, and a liquid crystal layer located between the first substrate and the second substrate; the VA panel further comprises a first electrode and a second electrode which are positioned on the same side of the first substrate or the same side of the second substrate, and the first electrode and the second electrode are arranged at intervals on the same layer.
10. The display module of claim 1, wherein the liquid crystal display panel comprises a TN panel comprising a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer disposed between the first substrate and the second substrate; the TN panel includes first and second electrodes on the first and second substrates, respectively.
11. The display module according to claim 1, wherein the liquid crystal display panel comprises an ECB panel comprising a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer between the first substrate and the second substrate; the ECB panel includes first and second electrodes on the first and second substrates, respectively.
12. A display device, comprising the display module according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276918.3A CN114647113B (en) | 2022-03-21 | 2022-03-21 | Display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276918.3A CN114647113B (en) | 2022-03-21 | 2022-03-21 | Display module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114647113A true CN114647113A (en) | 2022-06-21 |
| CN114647113B CN114647113B (en) | 2024-01-09 |
Family
ID=81996039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210276918.3A Active CN114647113B (en) | 2022-03-21 | 2022-03-21 | Display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114647113B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851539A (en) * | 2005-04-22 | 2006-10-25 | 青岛讯源光电有限公司 | Full-reflective full-transmission type colour liquid crystal display device |
| CN101349830A (en) * | 2008-09-11 | 2009-01-21 | 友达光电股份有限公司 | Display device |
| TW201011399A (en) * | 2008-09-03 | 2010-03-16 | Au Optronics Corp | Display apparatus |
| CN103838029A (en) * | 2014-02-18 | 2014-06-04 | 京东方科技集团股份有限公司 | Display device |
| CN104570466A (en) * | 2015-02-02 | 2015-04-29 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113985643A (en) * | 2021-10-29 | 2022-01-28 | 京东方科技集团股份有限公司 | Display panel and display device |
-
2022
- 2022-03-21 CN CN202210276918.3A patent/CN114647113B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851539A (en) * | 2005-04-22 | 2006-10-25 | 青岛讯源光电有限公司 | Full-reflective full-transmission type colour liquid crystal display device |
| TW201011399A (en) * | 2008-09-03 | 2010-03-16 | Au Optronics Corp | Display apparatus |
| CN101349830A (en) * | 2008-09-11 | 2009-01-21 | 友达光电股份有限公司 | Display device |
| CN103838029A (en) * | 2014-02-18 | 2014-06-04 | 京东方科技集团股份有限公司 | Display device |
| CN104570466A (en) * | 2015-02-02 | 2015-04-29 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113985643A (en) * | 2021-10-29 | 2022-01-28 | 京东方科技集团股份有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114647113B (en) | 2024-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3788421B2 (en) | LIQUID CRYSTAL DISPLAY DEVICE, ITS MANUFACTURING METHOD, AND ELECTRONIC DEVICE | |
| JP3337028B2 (en) | Liquid crystal devices and electronic equipment | |
| CN110221477B (en) | Array substrate, liquid crystal display screen and terminal | |
| JPH1184358A (en) | Liquid crystal display panel | |
| CN112928148A (en) | Display panel and electronic device | |
| US6671016B1 (en) | Transmission-reflection type liquid crystal display device having a selectively reflective filter layer | |
| JP2000298267A (en) | Liquid crystal display device | |
| JP2001033768A (en) | Liquid crystal device and electronic appliance | |
| CN113985643A (en) | Display panel and display device | |
| JP3345772B2 (en) | Liquid crystal devices and electronic equipment | |
| CN212781585U (en) | Display panel and display device | |
| CN111158185B (en) | Color film substrate and manufacturing method thereof, display panel and display device | |
| KR20070065065A (en) | Method for manufacturing transflective type liquid crystal display device | |
| CN114647113B (en) | Display module and display device | |
| JP2000298273A (en) | Display device and electronic appliance equipped with the same | |
| JP4106238B2 (en) | Transflective dual-use display device substrate, transflective liquid crystal display device, and electronic equipment | |
| JP4114336B2 (en) | Color filter substrate, method for manufacturing color filter substrate, liquid crystal display panel, liquid crystal display device, and electronic apparatus | |
| JP3843580B2 (en) | Liquid crystal device and electronic device | |
| JPH10239681A (en) | Liquid crystal display device and electronic equipment equipped with the same | |
| JP3350022B2 (en) | Liquid crystal display | |
| JP3389924B2 (en) | Liquid crystal devices and electronic equipment | |
| JP2003140135A (en) | Color filter for liquid crystal display device | |
| JP2004037499A (en) | Substrate for electrooptical device, method for manufacturing substrate for electrooptical device, electrooptical device and electronic apparatus | |
| CN211718667U (en) | Display panel and display device | |
| JP3337029B2 (en) | Liquid crystal devices and electronic equipment |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |