CN113176685A - Display panel and display device - Google Patents
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- CN113176685A CN113176685A CN202110592976.2A CN202110592976A CN113176685A CN 113176685 A CN113176685 A CN 113176685A CN 202110592976 A CN202110592976 A CN 202110592976A CN 113176685 A CN113176685 A CN 113176685A
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- 239000000758 substrate Substances 0.000 claims abstract description 88
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a display panel and a display device. The display panel includes: a first substrate and a second substrate; the first substrate and the second substrate form a cell gap for the cell, and liquid crystal is filled in the cell gap; the light source is positioned on one side of the second substrate, which is far away from the first substrate; the light-transmitting and light-reflecting layer is positioned on one side of the second substrate close to the first substrate, can enable light emitted by the light source to penetrate through and can enable light irradiated to the light-transmitting and light-reflecting layer through the first substrate to be reflected. The display panel can solve the problem of insufficient display brightness of the display panel in a dark environment, can improve the uniformity of the display brightness of the display panel, avoids light leakage caused by arranging a light source on the light emitting side of the display panel, improves the utilization rate of light provided by the light source, enables the display panel to tend to be thin, avoids the problems of being too thick and heavy and the like, and improves the attractiveness of the display panel.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
At present, as shown in fig. 1, a reflective liquid crystal display is provided with a reflective layer 11 inside the liquid crystal display, and when ambient light is sufficient, the reflective layer 11 reflects ambient light in a mirror surface manner as display light, so that the display screen displays images. But in darker areas the reflective liquid crystal screen cannot be clearly displayed because the weak ambient light is not reflected enough to illuminate the screen.
In order to solve the problem of insufficient display brightness in a dark environment, a current mainstream method is to add a light source 4 (as shown in fig. 1) on the light emitting side of the liquid crystal display, and when the ambient light is insufficient, the light source 4 is turned on to provide display light, so that a clear and bright picture can be displayed on the screen. However, the method has the problems of insufficient screen display brightness, poor display brightness uniformity, external light source light leakage, low light utilization rate, overstaffed display screen appearance, and the like.
Disclosure of Invention
The invention provides a display panel and a display device aiming at the problems of insufficient brightness, poor brightness uniformity and the like of the display light provided by the reflection type liquid crystal screen by adopting an external light source. When the ambient light is sufficient, the display panel reflects the ambient light irradiated on the display panel through the light-transmitting and light-reflecting layer to display; when the ambient light is insufficient, the display panel transmits the light emitted by the light source through the light-transmitting reflecting layer to display, so that the problem of insufficient display brightness of the display panel in a dark environment can be solved, the uniformity of the display brightness of the display panel can be improved, the light leakage phenomenon caused by arranging the light source on the light emitting side of the display panel is avoided, the utilization rate of the light provided by the light source is improved, the display panel tends to be thin, the problems of overstaffed and the like cannot occur, and the attractiveness of the display panel is improved.
The present invention provides a display panel including: a first substrate and a second substrate; the first substrate and the second substrate form a cell gap for the cell, and liquid crystal is filled in the cell gap;
the light source is positioned on one side of the second substrate, which is far away from the first substrate;
the light-transmitting and light-reflecting layer is positioned on one side, close to the first substrate, of the second substrate, can enable light emitted by the light source to penetrate through and can enable light irradiated to the light-transmitting and light-reflecting layer through the first substrate to be reflected.
Optionally, the light-transmissive light-reflective layer comprises a plurality of sub-layers; the plurality of sublayers are sequentially superposed;
the refractive indexes of the sub-layers are gradually reduced along the direction that the second substrate is far away from the first substrate, and the refractive index of the sub-layer with the smallest refractive index is larger than that of air.
Optionally, the plurality of sub-layers are made of light-transmitting materials.
Optionally, the thicknesses of the sub-layers are all integer multiples of the wavelength of incident light.
Optionally, the plurality of sub-layers are the same thickness.
Optionally, a plurality of protruding structures are further arranged on a side surface of the light-transmitting and light-reflecting layer, which is away from the second substrate, and the protruding structures are uniformly arranged, so that the incident angle of light incident on the light-transmitting and light-reflecting layer through the protruding structures can be increased.
Optionally, the shape of the protruding structure includes any one of a cone, a pyramid, a hemisphere, and an ellipsoid.
Optionally, the protruding structure is made of a light-transmitting material;
the refractive index of the convex structure is larger than or equal to that of the sub-layer with the maximum refractive index.
Optionally, an 1/4 slide and a 1/2 slide are further included, located on a side of the first substrate facing away from the cassette gap, and the 1/4 slide and the 1/2 slide are sequentially distributed away from the first substrate.
The invention also provides a display device comprising the display panel.
The invention has the beneficial effects that: according to the display panel provided by the invention, the light source is arranged on one side of the second substrate, which is far away from the first substrate, and the light-transmitting and light-reflecting layer is arranged on one side of the second substrate, which is close to the first substrate, so that when the ambient light is sufficient, the display panel reflects the ambient light irradiated on the display panel through the light-transmitting and light-reflecting layer to display; when the ambient light is insufficient, the display panel transmits the light emitted by the light source through the light-transmitting reflecting layer to display, so that the problem of insufficient display brightness of the display panel in a dark environment can be solved, the uniformity of the display brightness of the display panel can be improved, the light leakage phenomenon caused by arranging the light source on the light emitting side of the display panel is avoided, the utilization rate of the light provided by the light source is improved, the display panel tends to be thin, the problems of overstaffed and the like cannot occur, and the attractiveness of the display panel is improved.
According to the display device provided by the invention, by adopting the display panel, the display effect of the display device is improved, and the attractiveness of the display device can be improved.
Drawings
Fig. 1 is a schematic sectional view showing a structure of a reflective liquid crystal display panel according to the prior art;
FIG. 2 is a cross-sectional view of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an optical path of the light-transmissive and light-reflective layer reflecting incident ambient light according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a principle of light paths of the light-transmitting and light-reflecting layer transmitting light emitted from the light source according to the embodiment of the present invention;
FIG. 5 is a schematic view illustrating a protrusion structure disposed on a light-transmissive and light-reflective layer according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an optical path of a light incident on a light-transmissive and light-reflective layer with a raised structure according to an embodiment of the present invention.
Wherein the reference numerals are:
1. a first substrate; 2. a second substrate; 3. a liquid crystal; 4. a light source; 5. a light-transmitting and light-reflecting layer; 51. a sub-layer; 6. a raised structure; 7. 1/4 slide glass; 8. 1/2 slide glass; 9. an alignment film; 10. a polarizer; 11. a light reflecting layer.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, a display panel and a display device of the present invention are described in further detail below with reference to the accompanying drawings and the detailed description.
To solve the above-mentioned problems of insufficient brightness and poor brightness uniformity when an external light source is used to provide display light to a reflective liquid crystal display, an embodiment of the present invention provides a display panel, as shown in fig. 2, including: a first substrate 1 and a second substrate 2; the first substrate 1 and the second substrate 2 form a cell gap with respect to the cell, and the cell gap is filled with a liquid crystal 3; a light source 4 located on a side of the second substrate 2 facing away from the first substrate 1; the display panel further comprises a light-transmitting and light-reflecting layer 5 which is positioned on one side of the second substrate 2 close to the first substrate 1, can allow light emitted by the light source 4 to transmit, and can reflect light irradiated to the light-transmitting and light-reflecting layer through the first substrate 1.
The light source 4 may be a direct type backlight or a side type backlight. The structure of the backlight is conventional and will not be described herein.
By arranging the light source 4 on the side of the second substrate 2 away from the first substrate 1 and arranging the light-transmitting and light-reflecting layer 5 on the side of the second substrate 2 close to the first substrate 1, when the ambient light is sufficient, the display panel displays the ambient light irradiated on the display panel through the light-transmitting and light-reflecting layer 5; when the ambient light is insufficient, the display panel transmits the light emitted by the light source 4 through the light-transmitting reflecting layer 5 to display, so that the problem of insufficient display brightness of the display panel in a dark environment can be solved, the uniformity of the display brightness of the display panel can be improved, the light leakage phenomenon caused by arranging the light source on the light emitting side of the display panel is avoided, the utilization rate of the light provided by the light source 4 is improved, the display panel tends to be thin, the problems of swelling, inappropriate trend and the like cannot occur, and the attractiveness of the display panel is improved.
Optionally, in this embodiment, the light-transmissive and light-reflective layer 5 includes a plurality of sub-layers 51; a plurality of sublayers 51 are stacked in sequence; in a direction in which the second substrate 2 is away from the first substrate 1, the refractive index of the plurality of sub-layers 51 gradually decreases, and the refractive index of the sub-layer 51 with the smallest refractive index is greater than that of air.
The reflection principle of the light-transmitting and light-reflecting layer 5 on incident ambient light is as follows: as shown in fig. 3, ambient light is incident from the first sub-layer 51 (i.e., N1) with the highest refractive index in the light-transmitting and light-reflecting layer 5 through the first substrate 1, and the incident light is partially reflected and partially refracted on the incident surface p1 of the sub-layer 51 with the highest refractive index; the refracted light is incident on the interface p2 of the sublayer 51 and the next sublayer 51 (i.e., N2), and is partially reflected and partially refracted at the interface p 2; and so on; when passing through the interface between the sublayers 51, the incident light rays are partially reflected and partially refracted; because the refractive index of each sub-layer 51 is smaller and smaller along the direction that the second substrate 2 is far away from the first substrate 1, the incident angle of the light refracted at the previous interface when the light enters the next interface is larger and larger, and the incident angle of the light reaching the exit surface of the last sub-layer 51 (namely, Nm) with the smallest refractive index is larger than or equal to the critical angle of total reflection of the light in the sub-layer 51, so that the total reflection effect is achieved, and most of the ambient light irradiated to the light-transmitting and light-reflecting layer 5 through the first substrate 1 can be reflected for display.
The transmission principle of the light transmitting and reflecting layer 5 to the light emitted by the light source 4 is as follows: as shown in fig. 4, the light emitted from the light source 4 is incident from the sub-layer 51 (Nm) with the lowest refractive index in the light-transmitting and light-reflecting layer 5, and the incident light is refracted in the sub-layer 51 with the lowest refractive index; the refracted light is incident into the last sub-layer 51 (i.e., Nm-1) of the sub-layers 51 and is refracted in the last sub-layer 51; and so on; each time incident into one of the sub-layers 51 of higher refractive index, the incident light is refracted; since the refractive index of each sub-layer 51 is increased in the direction in which the second substrate 2 approaches the first substrate 1, the incident angle when the light refracted in the next sub-layer 51 is incident on the previous sub-layer 51 is decreased, so that the light emitted from the light source 4 can be transmitted through each sub-layer 51 and emitted from the first substrate 1 side, thereby providing light for display.
Optionally, in this embodiment, the plurality of sub-layers 51 are made of a light-transmitting material. For example, each sub-layer 51 is made of a PET substrate, and the materials added in the PET substrate for adjusting the refractive index of the different sub-layers 51 are different, so that the refractive index of each sub-layer 51 is different.
Optionally, the thicknesses of the sub-layers 51 are each an integer multiple of the wavelength of the incident light. The sub-layers 51 are arranged to have a thickness that ensures that light reflected or transmitted by the light-transmissive and light-reflective layer 5 is not polarized.
Optionally, in this embodiment, the thicknesses of the sub-layers 51 are the same. Alternatively, the thicknesses of the sub-layers 51 can be freely matched.
Optionally, as shown in fig. 5 and 6, a plurality of protruding structures 6 are further disposed on a side surface of the light-transmitting and light-reflecting layer 5 away from the second substrate 2, the plurality of protruding structures 6 are uniformly arranged, and the protruding structures 6 can increase an incident angle of light that is incident on the light-transmitting and light-reflecting layer 5 through the protruding structures 6. As can be seen from fig. 6, the incident angle b of the ambient light after passing through the protruding structures 6 is greater than the original incident angle a of the ambient light, and since most of the ambient light irradiated onto the light-transmitting and light-reflecting layer 5 through the first substrate 1 is reflected by the light-transmitting and light-reflecting layer 5, but inevitably, a small portion of the ambient light will penetrate through the light-transmitting and light-reflecting layer 5 due to the incident angle thereof being smaller than the critical angle of total reflection of each sub-layer 51 in the light-transmitting and light-reflecting layer 5, the arrangement of the plurality of protruding structures 6 can further increase the incident angle of the incident light penetrating through the first substrate 1 and entering the light-transmitting and light-reflecting layer 5, so that the incident angle of the light penetrating into the light-transmitting and light-reflecting layer 5 is not smaller than the critical angle of total reflection of each sub-layer 51 in the light-transmitting and light-reflecting layer 5, thereby total reflection occurs, and further improving the utilization rate of the ambient light as the display light.
Alternatively, in the present embodiment, the shape of the convex structure 6 includes any one of a conical shape (as shown in fig. 5), a pyramidal shape, a hemispherical shape, and an ellipsoidal shape. Of course, the shape of the convex structure 6 is not limited to the above shapes, and any shape may be used as long as the convex structure 6 can increase the incident angle of the ambient light.
Optionally, in this embodiment, the protruding structure 6 is made of a light-transmitting material; the refractive index of the raised structures 6 is greater than or equal to the refractive index of the largest refractive index sub-layer 51. When the refractive index of the convex structures 6 is equal to that of the sub-layer 51 with the maximum refractive index, the ambient light incident to the convex structures 6 increases the incident angle only by the shape of the surface of one side of the convex structures 6 away from the light-transmitting and light-reflecting layer 5; when the refractive index of the protrusion structure 6 is greater than the refractive index of the sub-layer 51 with the largest refractive index, on one hand, the incident angle is increased by the shape of the surface of one side of the protrusion structure 6 away from the light-transmitting and light-reflecting layer 5, and on the other hand, the incident angle of the light beam incident into the light-transmitting and light-reflecting layer 5 is further increased on the interface of the protrusion structure 6 and the sub-layer 51 with the largest refractive index by the refractive index difference between the protrusion structure 6 and the sub-layer 51, so that the incident angle of the incident light is further increased, and further, the incident ambient light incident into the light-transmitting and light-reflecting layer 5 is more easily subjected to total reflection.
In addition, the above refractive index of the protruding structure 6 is set to make the incident angle of the light emitted from the light source 4 and transmitted through the light-transmitting reflective layer 5 to the protruding structure 6 smaller, so that the light emitted from the light source 4 can be transmitted through each sub-layer 51 and the protruding structure 6 in the light-transmitting luminescent layer 5 in sequence and emitted from the first substrate 1 side, thereby providing light for display.
Optionally, in this embodiment, both the first substrate 1 and the second substrate 2 are transparent; the first substrate 1 comprises a color film layer; the second substrate 2 includes a pixel circuit. The color film layer can realize color display of the display panel. The pixel circuit is used for driving the liquid crystal 3 in each sub-pixel of the display panel to deflect, thereby realizing picture display. Preferably, the light-transmitting and light-reflecting layer 5 is located on one side of the pixel circuit close to the box gap, so that the light-transmitting and light-reflecting layer 5 has a better transmission and reflection effect on incident light, and the utilization rate of the incident light is improved.
The pixel circuit comprises a pixel electrode and a common electrode, the pixel electrode and the common electrode can be both arranged in the second substrate 2 and respectively positioned on different layers, the electrode positioned on the opposite upper layer is arranged in a slit shape, the electrode positioned on the opposite lower layer can be in a plate shape or a slit shape, and thus an ADS (Advanced Super Dimension Switch) type display panel is realized; it is also possible that the pixel electrode is provided in the second substrate 2 and the common electrode is provided in the first substrate 1, thereby implementing a TN (Twisted Nematic) type display panel (as shown in fig. 2); the pixel electrode and the common electrode may be disposed on the same layer, and both are strip electrodes, and the two are alternately arranged, thereby implementing an IPS (In-Plane Switching) type display panel. The display panels in the above three modes are all in the conventional display mode, and detailed description thereof is omitted.
Optionally, in this embodiment, the display panel further includes 1/4 slide 7 and 1/2 slide 8, which are located on the side of the first substrate 1 facing away from the cell gap and are sequentially distributed away from the first substrate 1. 1/4 the slide 7 can convert linearly polarized light into circularly or elliptically polarized light and convert circularly or elliptically polarized light into linearly polarized light, and increase phase delay of pi/2 integral multiple of light. 1/2 the slide glass 8 can rotate the polarization direction of linearly polarized light by a certain angle and reverse the rotation direction of circularly or elliptically polarized light, so as to increase the phase delay of pi integral multiple of light. The 1/4 glass sheets 7 and 1/2 glass sheets 8 can assist the light-transmitting and light-reflecting layer 5 to realize normal outgoing of reflected light and transmitted light, thereby realizing the normal display function of the display panel by utilizing the ambient light and the light emitted by the light source 4.
In addition, in this embodiment, the display panel further includes alignment films 9 respectively disposed on the first substrate 1 and the second substrate 2 near the cell gap side, and polarizers 10 respectively disposed on the first substrate 1 and the second substrate 2 away from the cell gap side; the alignment film 9 is used for initial alignment of the liquid crystal 3; the polarizer 10 is used to convert light incident to the display panel into linearly polarized light, and make the emergent light of the display panel into linearly polarized light. The alignment film 9 and the polarizer 10 are conventional arrangements of display panels and will not be described in detail here.
According to the display panel provided by the invention, the light source is arranged on one side of the second substrate, which is far away from the first substrate, and the light-transmitting and light-reflecting layer is arranged on one side of the second substrate, which is close to the first substrate, so that when the ambient light is sufficient, the display panel reflects the ambient light irradiated on the display panel through the light-transmitting and light-reflecting layer to display; when the ambient light is insufficient, the display panel transmits the light emitted by the light source through the light-transmitting reflecting layer to display, so that the problem of insufficient display brightness of the display panel in a dark environment can be solved, the uniformity of the display brightness of the display panel can be improved, the light leakage phenomenon caused by arranging the light source on the light emitting side of the display panel is avoided, the utilization rate of the light provided by the light source is improved, the display panel tends to be thin, the problems of overstaffed and the like cannot occur, and the attractiveness of the display panel is improved.
The embodiment of the invention also provides a display device which comprises the display panel in the embodiment.
By adopting the display panel in the embodiment, the display effect of the display device is improved, and the attractiveness of the display device can be improved.
The display panel provided by the invention can be any product or component with a display function, such as an LCD panel, an LCD television, a display, a mobile phone, a navigator and the like.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A display panel, comprising: a first substrate and a second substrate; the first substrate and the second substrate form a cell gap for the cell, and liquid crystal is filled in the cell gap;
the light source is positioned on one side of the second substrate, which is far away from the first substrate;
the light-transmitting and light-reflecting layer is positioned on one side of the second substrate close to the first substrate, can enable light emitted by the light source to penetrate through, and can enable light irradiated to the light-transmitting and light-reflecting layer through the first substrate to be reflected.
2. The display panel of claim 1, wherein the light-transmissive and light-reflective layer comprises a plurality of sub-layers; the plurality of sublayers are sequentially superposed;
the refractive indexes of the sub-layers are gradually reduced along the direction that the second substrate is far away from the first substrate, and the refractive index of the sub-layer with the smallest refractive index is larger than that of air.
3. The display panel of claim 2, wherein the plurality of sub-layers are all made of a light transmissive material.
4. The display panel of claim 3, wherein the thickness of each of the sub-layers is an integer multiple of the wavelength of incident light.
5. The display panel of claim 3, wherein the plurality of sub-layers are the same thickness.
6. The display panel according to claim 2, wherein a plurality of protruding structures are further disposed on a side of the light-transmissive and light-reflective layer facing away from the second substrate, the protruding structures are uniformly arranged, and the protruding structures can increase an incident angle of light incident on the light-transmissive and light-reflective layer through the protruding structures.
7. The display panel of claim 6, wherein the shape of the convex structures comprises any one of a cone, a pyramid, a hemisphere, and an ellipsoid.
8. The display panel according to claim 7, wherein the protrusion structure is made of a light-transmitting material;
the refractive index of the convex structure is larger than or equal to that of the sub-layer with the maximum refractive index.
9. The display panel of claim 1, further comprising 1/4 and 1/2 slides on a side of the first substrate facing away from the cell gap, wherein the 1/4 and 1/2 slides are sequentially distributed away from the first substrate.
10. A display device, comprising: the display panel of any one of claims 1-9.
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| CN202110592976.2A CN113176685A (en) | 2021-05-28 | 2021-05-28 | Display panel and display device |
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| CN202110592976.2A CN113176685A (en) | 2021-05-28 | 2021-05-28 | Display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079463A (en) * | 2022-06-30 | 2022-09-20 | 京东方科技集团股份有限公司 | Liquid crystal display panel, liquid crystal display device and manufacturing method |
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- 2021-05-28 CN CN202110592976.2A patent/CN113176685A/en active Pending
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| KR20080009254A (en) * | 2007-12-28 | 2008-01-28 | 삼성전자주식회사 | Transflective type liquid crystal 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 |
| WO2017197595A1 (en) * | 2016-05-18 | 2017-11-23 | 华为技术有限公司 | Display device |
| US20210149249A1 (en) * | 2019-11-19 | 2021-05-20 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display device |
| CN215494449U (en) * | 2021-05-28 | 2022-01-11 | 福州京东方光电科技有限公司 | Display panel and display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079463A (en) * | 2022-06-30 | 2022-09-20 | 京东方科技集团股份有限公司 | Liquid crystal display panel, liquid crystal display device and manufacturing method |
| CN115079463B (en) * | 2022-06-30 | 2023-10-20 | 京东方科技集团股份有限公司 | Liquid crystal display panel, liquid crystal display device and manufacturing method |
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