CN206892500U - A kind of reflecting type liquid crystal display panel and display device - Google Patents
A kind of reflecting type liquid crystal display panel and display device Download PDFInfo
- Publication number
- CN206892500U CN206892500U CN201720704360.9U CN201720704360U CN206892500U CN 206892500 U CN206892500 U CN 206892500U CN 201720704360 U CN201720704360 U CN 201720704360U CN 206892500 U CN206892500 U CN 206892500U
- Authority
- CN
- China
- Prior art keywords
- light
- liquid crystal
- display panel
- crystal display
- reflective liquid
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a kind of reflecting type liquid crystal display panel and display device, by increasing light transformational structure and reflection-type structure of polarized light, the light with the pixel cell corresponding color where pixel electrode can be converted incident light into, with only reflecting the light of specific wavelength in the prior art compared with luminous structure, the utilization rate of light is considerably increased；And, utilize reflection-type structure of polarized light, by the light that light transformational structure is sent by entering back into liquid crystal layer after the selection of the polarization of reflection-type structure of polarized light, effectively prevent because caused by light transformational structure light polarization state change caused by picture can not normally show the problem of, the normal display of display panel is not only ensure that, also improves the quality of display picture.
Description
Technical Field
The present invention relates to the field of display technologies, and particularly to a reflective liquid crystal display panel and a display device.
Background
A reflective liquid crystal display, which is a liquid crystal display using ambient light as a light source to realize image display, wherein the reflective liquid crystal display panel has a specific structure as shown in fig. 1a and fig. 1b, and includes an array substrate 1 and an opposite substrate 2 which are oppositely arranged, a liquid crystal layer 3 arranged between the array substrate 1 and the opposite substrate 2, an absorption type polarizer 4 arranged on the opposite substrate 2 side away from the liquid crystal layer 3, a reflective electrode 5 arranged on the array substrate 1 side facing the liquid crystal layer 3, and an absorption type color film layer 6 arranged on the opposite substrate 2 side facing the liquid crystal layer 3 or on the reflective electrode 5 side facing the liquid crystal layer 3; the reflective electrode 5 can reflect incident light back to the liquid crystal layer 3, and the absorption-type color film layer 6 can reflect a specific color by absorbing light with other wavelengths, so as to realize color image display.
When the ambient light is sufficient, the reflective liquid crystal display can perfectly realize the display function; and the light utilization rate is very low under the condition of insufficient ambient light or dark room state, thus seriously affecting the display effect of pictures.
Therefore, it is an urgent technical problem to be solved by those skilled in the art how to improve the light utilization rate of the reflective liquid crystal display and improve the display quality of the image.
SUMMERY OF THE UTILITY MODEL
An embodiment of the present invention provides a reflective liquid crystal display panel and a display device, so as to improve the light utilization rate of the reflective liquid crystal display and improve the display quality of the image.
An embodiment of the utility model provides a reflection type liquid crystal display panel, include: the liquid crystal display panel comprises an array substrate and an opposite substrate which are oppositely arranged, a liquid crystal layer positioned between the opposite substrate and the array substrate, an absorption type polarizer positioned on one side of the opposite substrate, which is far away from the liquid crystal layer, a plurality of pixel electrodes positioned on one side of the array substrate, which faces the liquid crystal layer, a reflection type polarization structure positioned between the pixel electrodes and the array substrate, a plurality of light conversion structures positioned on one side of the reflection type polarization structure, which is far away from the pixel electrodes, and a reflector positioned on one side of the light conversion structure, which is far away from the reflection type polarization structure; wherein,
the pixel electrodes correspond to the light conversion structures one to one; the light conversion structure is used for converting incident light into light with a color corresponding to the pixel unit where the pixel electrode is located;
the light reflection axis of the reflection-type polarization structure is parallel to or perpendicular to the light transmission axis of the absorption-type polarizer.
In one possible implementation manner, in the above-mentioned reflective liquid crystal display panel provided by an embodiment of the present invention, the reflective polarization structure is a metal wire grid polarization structure.
In a possible implementation manner, in the reflective liquid crystal display panel provided by an embodiment of the present invention, the metal wire grid polarization structure is electrically connected to the pixel electrode.
In a possible implementation manner, in the reflective liquid crystal display panel provided by an embodiment of the present invention, the metal wire grid polarization structure and the pixel electrode are an integral structure.
In a possible implementation manner, in the reflective liquid crystal display panel provided by an embodiment of the present invention, the reflective mirror is located between the array substrate and the light conversion structure.
In a possible implementation manner, in the reflective liquid crystal display panel provided in an embodiment of the present invention, the reflector and the source/drain metal in the array substrate are disposed on the same layer, or on the same layer as the gate metal.
In a possible implementation manner, in the reflective liquid crystal display panel provided by an embodiment of the present invention, the reflector is located on a side of the array substrate facing away from the opposite substrate.
In a possible implementation manner, in the reflective liquid crystal display panel provided in an embodiment of the present invention, a pixel unit where the pixel electrode corresponding to the light conversion structure is located is low-frequency light in a visible light band;
the light conversion structure includes a down conversion material for converting high frequency light and intermediate frequency light within a visible light band into the low frequency light.
In a possible implementation manner, in the reflective liquid crystal display panel provided in an embodiment of the present invention, a pixel unit where the pixel electrode corresponding to the light conversion structure is located is high-frequency light in a visible light band;
the light conversion structure comprises an up-conversion material for converting low-frequency light and intermediate-frequency light in a visible light band into the high-frequency light.
In a possible implementation manner, in the reflective liquid crystal display panel provided in an embodiment of the present invention, a pixel unit where the pixel electrode corresponding to the light conversion structure is located is middle-frequency light in a visible light band;
the light conversion structure comprises an up-conversion material for converting low-frequency light in a visible light waveband into the intermediate-frequency light and/or a down-conversion material for converting high-frequency light in the visible light waveband into the intermediate-frequency light.
In one possible implementation manner, in the reflective liquid crystal display panel provided by an embodiment of the present invention, the down conversion material includes: one or a combination of inorganic luminescent materials and organic luminescent materials.
In a possible implementation manner, in the above-mentioned reflective liquid crystal display panel provided by an embodiment of the present invention, the up-conversion material includes: an inorganic compound doped with rare earth ions.
The embodiment of the utility model provides a still provide a display device, include: the embodiment of the present invention provides the above reflective liquid crystal display panel.
The utility model discloses beneficial effect as follows:
an embodiment of the utility model provides a reflection type liquid crystal display panel and display device, include: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer, an absorption polarizer, a plurality of pixel electrodes, a reflection polarization structure, a plurality of light conversion structures and a reflector, wherein the array substrate and the opposite substrate are oppositely arranged, the liquid crystal layer is positioned between the opposite substrate and the array substrate, the absorption polarizer is positioned on one side, away from the liquid crystal layer, of the opposite substrate, the pixel electrodes are positioned on one side, facing the liquid crystal layer, of the array substrate, the reflection polarization structure is positioned between the pixel electrodes and the array substrate, the light conversion structures are positioned on one; the pixel electrodes correspond to the light conversion structures one to one; the light conversion structure is used for converting incident light into light with a color corresponding to the pixel unit where the pixel electrode is located; the light reflection axis of the reflection type polarization structure is parallel to or perpendicular to the light transmission axis of the absorption type polarizer. Therefore, the arrangement of the light conversion structure can convert incident light into light with a color corresponding to the pixel unit where the pixel electrode is located, and compared with a structure which only reflects light with a specific wavelength and emits light in the prior art, the utilization rate of the light is greatly increased; in addition, the arrangement of the reflection-type polarization structure is combined, light emitted by the light conversion structure enters the liquid crystal layer after being subjected to polarization selection of the reflection-type polarization structure, the problem that pictures cannot be normally displayed due to change of light polarization state caused by the light conversion structure is effectively solved, normal display of the display panel is guaranteed, and the quality of the displayed pictures is improved.
Drawings
FIGS. 1a and 1b are side views of a reflective liquid crystal display panel according to the related art, respectively;
fig. 2 to 5 are side views of a reflective liquid crystal display panel according to an embodiment of the present invention;
fig. 6 is a schematic view of the working principle of the normally white mode display panel provided in the embodiment of the present invention;
fig. 7 is a schematic diagram illustrating an operation principle of a normally white mode display panel according to an embodiment of the present invention in a black state;
fig. 8 is a schematic diagram illustrating a working principle of a normally white display panel according to an embodiment of the present invention when displaying various gray-scale images;
fig. 9 is a top view of a light conversion structure provided in an embodiment of the present invention.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings for describing a specific embodiment of a reflective liquid crystal display panel and a display device according to embodiments of the present invention. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An embodiment of the present invention provides a reflective liquid crystal display panel, as shown in fig. 2 to 5, which may include: the liquid crystal display device comprises an array substrate 10 and an opposite substrate 20 which are oppositely arranged, a liquid crystal layer 30 positioned between the opposite substrate 20 and the array substrate 10, an absorption type polarizer 40 positioned on one side of the opposite substrate 20, which is far away from the liquid crystal layer 30, a plurality of pixel electrodes 50 positioned on one side of the array substrate 10, which faces the liquid crystal layer 30, a reflection type polarization structure 60 positioned between the pixel electrodes 50 and the array substrate 10, a plurality of light conversion structures 70 positioned on one side of the reflection type polarization structure 60, which is far away from the pixel electrodes 50, and a reflector 80 positioned on one side of the light conversion structures 70, which is far away from the reflection; wherein,
the pixel electrodes 50 correspond to the light conversion structures 70 one to one; a light conversion structure 70 for converting incident light into light of a color corresponding to a pixel unit where the pixel electrode 50 is located;
the light reflection axis of the reflection type polarization structure 60 and the light transmission axis of the absorption type polarizer 40 are parallel or perpendicular to each other.
The embodiment of the present invention provides an above-mentioned reflective liquid crystal display panel, through the arrangement of the light conversion structure, the incident light can be converted into the light with the color corresponding to the pixel unit where the pixel electrode is located, compared with the structure in the prior art that only the light with specific wavelength is reflected to emit light, the utilization rate of light is greatly increased; in addition, the arrangement of the reflection-type polarization structure is combined, light emitted by the light conversion structure enters the liquid crystal layer after being subjected to polarization selection of the reflection-type polarization structure, the problem that pictures cannot be normally displayed due to change of light polarization state caused by the light conversion structure is effectively solved, normal display of the display panel is guaranteed, and the quality of the displayed pictures is improved.
In practical implementation, when the reflective liquid crystal display panel provided by the embodiment of the present invention is in the normally white mode, the light reflection axis of the reflective polarization structure and the light transmission axis of the absorption polarizer need to be parallel to each other. As shown in fig. 6, if the light transmission axis of the absorptive polarizer 40 is in the X direction, only the light with the polarization direction of X can transmit through the absorptive polarizer 40, and when the polarized light with the X direction is incident on the surface of the reflective polarization structure 60 through the liquid crystal layer 30, the polarization direction of the light is still in the X direction because the liquid crystal has no optical rotation; the X-direction polarized light incident on the surface of the reflective polarizing structure 60 is totally reflected, passes through the liquid crystal layer 30 and is still X-direction polarized light, and is emitted out of the display panel through the absorptive polarizer 40, thereby forming a normally white mode.
Specifically, when the normally white mode display panel is required to display a black state, the light can be rotated by 90 degrees in the polarization direction after passing through the liquid crystal layer by controlling the voltage; for example, as shown in fig. 7, after passing through the liquid crystal layer 30, the polarization direction of the X-direction polarized light passing through the absorption polarizer 40 is changed to the Y-direction perpendicular to the X-direction, and then all of the X-direction polarized light passes through the reflection type polarization structure 60 and enters the light conversion structure 70 to excite the M-direction polarized light, and is reflected by the mirror 80 to enter the reflection type polarization structure 60, and the X' -direction polarized light of the X-direction component of the M-direction polarized light passes through the reflection type polarization structure 60 and enters the liquid crystal layer 30, and is changed to the Y-direction polarized light by the deflection of the liquid crystal layer 30 and then absorbed by the absorption polarizer 40 (as shown by the double arrow), thereby displaying the black state.
Specifically, when a display panel in a normally white mode is required to display various gray-scale images, the deflection direction of the liquid crystal is controlled by controlling voltage; for example, as shown in fig. 8, the polarization direction of the X-direction polarized light transmitted through the absorption type polarizer 40 is changed to the P-direction after passing through the liquid crystal layer 30; wherein, the polarized light X 'of the X-direction component in the P-direction polarized light is reflected by the reflective polarization structure 60 to the liquid crystal layer 30, the polarized light Y' of the Y-direction component in the P-direction polarized light is transmitted through the reflective polarization structure 60, enters the light conversion structure 70, excites the polarized light of the Q-direction, is reflected by the mirror 80, and enters the reflective polarization structure 60, and the polarized light X ″ of the X-direction component in the Q-direction polarized light enters the liquid crystal layer 30 through the reflective polarization structure 60; after the liquid crystal layer 30 is deflected, the component polarized light X ' and the component polarized light X ″ are changed into polarized light in the P direction, so that the polarized light X ' "of the X direction component in the polarized light in the P direction is transmitted through the absorptive polarizer 40 and emitted, and the polarized light Y '" of the Y direction component is absorbed by the absorptive polarizer 40 (as shown by the double-headed arrow); and according to the different colors of the excited light of different light conversion structures 70, a final image is formed after color mixing, so that the display function is realized.
Specifically, when the embodiment of the present invention provides an above-mentioned reflection-type liquid crystal display panel is in the normally black mode, the light reflection axis of the reflection-type polarization structure and the light transmission axis of the absorption-type polarizer need to be set to be perpendicular to each other, and the normally black mode is specifically realized, and the display principle of displaying the white state and various gray-scale pictures is similar to the display principle of the display panel in the normally white mode, and the embodiment of the normally white mode display panel can be specifically referred to, and the repeated part is not repeated.
In a specific implementation, in order to realize the function of the reflection-type polarization structure, the light emitted from the light conversion structure enters the liquid crystal layer after polarization selection, in the embodiment of the present invention, the reflection-type polarization structure is generally a metal wire grid polarization structure.
Specifically, the pixel electrode disposed on the side of the metal wire grid polarizing structure facing the liquid crystal layer is typically a transparent conductive material, such as ITO; the pixel electrode needs to be electrically connected with the drain metal in the array substrate so as to provide a driving signal for the pixel electrode; however, in the structure shown in fig. 2 to 5, since a plurality of layers are separated between the pixel electrode 50 and the drain metal 102, and the thickness is large, the difficulty in forming the via hole is large, therefore, in the reflective liquid crystal display panel provided by the embodiment of the present invention, the metal wire grid polarization structure is electrically connected to the pixel electrode 50; the metal wire grid polarizing structure is electrically connected with the drain metal 102 through the via hole, so that the manufacturing difficulty is reduced, and the influence on the display effect caused by poor contact between the pixel electrode 50 and the drain metal 102 due to the high manufacturing difficulty of the via hole is effectively avoided.
Specifically, because metal wire grid polarisation structure is the metal material, in the embodiment of the utility model provides an among the above-mentioned reflection type liquid crystal display panel, can set up metal wire grid polarisation structure and pixel electrode as a body structure, be about to the multiplexing as pixel electrode of metal wire grid polarisation structure, like the left slash filling area that figure 3 shows, reflection-type polarisation structure 60 that constitutes by metal wire grid polarisation structure and pixel electrode 50 structure as an organic whole have simplified the manufacture craft, have practiced thrift the cost of manufacture.
In specific implementation, the reflector is used for reflecting all incident light entering the reflector to the light conversion structure, so that the utilization rate of the light is improved, and the display brightness of the reflective liquid crystal display panel is improved; therefore, in the reflective liquid crystal display panel provided by the embodiment of the present invention, as shown in fig. 5, the reflector 80 may be located on a side of the array substrate 10 away from the opposite substrate 20; of course, as also shown in fig. 2 to 4, the reflecting mirror 80 may be located between the array substrate 10 and the light conversion structure 70.
Specifically, in the reflective liquid crystal display panel provided by the embodiment of the present invention, when the reflector 80 is located between the array substrate 10 and the light conversion structure 70, it may be as shown in fig. 2; of course, as shown in fig. 3 and 4, the mirror 80 may be disposed in the same layer as the source/drain metal 102 or the gate metal 101 in the array substrate 10; namely, the source drain metal 102 and the reflector 80 can be obtained at the same time through a one-time composition process, or the gate metal 101 and the reflector 80 can be obtained at the same time, so that the manufacturing process is greatly simplified, and the manufacturing cost is reduced; the transistors in the array substrate shown in fig. 2 to 5 are bottom gate structures, but may also be top gate structures, which is not limited herein.
In specific implementation, since the pixel electrodes correspond to the light conversion structures one to one, only the light conversion structures 70 are shown in fig. 9, generally, the pixel unit corresponding to each pixel electrode is referred to as a sub-pixel unit, and each three sub-pixel units form one pixel, that is, each three light conversion structures 70 form one pixel m, as shown in fig. 9, of course, the number is not limited to three; thus, each of the light conversion structures 70 serves to convert incident light into light of a color corresponding to the pixel unit where the pixel electrode is located, for example, when three sub-pixels included in one pixel respectively emit red light R, green light G, and blue light B, the three light conversion structures 70 respectively convert the incident light into red light R, green light G, and blue light B; therefore, in order to realize the light conversion structure, the incident light can be converted into the light with the color corresponding to the pixel unit where the pixel electrode is located, so that the utilization rate of the light is improved. The choice of the material of the light-converting structure is dependent on the wavelength range of the light. The material selection of the light conversion structure is specifically described below.
Specifically, in the above-mentioned reflective liquid crystal display panel provided by the embodiment of the present invention, when the light of the color corresponding to the pixel unit where the pixel electrode is located is the low-frequency light in the visible light band, the light conversion structure generally includes a down-conversion material for converting the high-frequency light and the intermediate-frequency light in the visible light band into the low-frequency light. Specifically, the down-conversion material may include: one or a combination of the inorganic light emitting material and the organic light emitting material may be, for example, a quantum dot material, a fluorescent material, or the like. The organic light emitting material may be an organic small molecule light emitting material or an organic high molecular polymer light emitting material, which is not limited herein. When a plurality of down-conversion materials are selected as the light conversion structure, the film layers of the materials may be arranged, and the film layers may be adjacent to each other or may be arranged at intervals, or the materials may be mixed in the same film layer, which is not limited herein.
For example, when the light of the color corresponding to the pixel unit where the pixel electrode is located is red light, the material of the light conversion structure is a down-conversion material for converting blue light and green light into red light. Specifically, the down-conversion material may be a red luminescent material such as a red quantum dot, a red fluorescent material, and the like, which is not limited herein.
Specifically, in the above-mentioned reflective liquid crystal display panel provided by the embodiment of the present invention, when the light of the color corresponding to the pixel unit where the pixel electrode is located is the high-frequency light in the visible light band, the light conversion structure generally includes the up-conversion material for converting the low-frequency light and the intermediate-frequency light in the visible light band into the high-frequency light. Specifically, the upconverting material may comprise: an inorganic compound doped with rare earth ions. For example, inorganic compounds such as fluorides, oxides, sulfur-containing compounds, oxyfluorides, halides, etc., may be doped with one or more rare earth ions in corresponding concentrations and proportions, depending on the high frequency light to be converted. For example, NaYF4 with the highest upconversion luminous efficiency can be selected as the host material, and Yb, Tm and Er are doped to 18-60: 0-0.2: 0-2. When a plurality of up-conversion materials are selected as the light conversion structure, the material film layers may be disposed, and the film layers may be adjacent to each other or disposed at intervals, or the materials may be mixed in the same film layer, which is not limited herein.
For example, when the light of the color corresponding to the pixel unit where the pixel electrode is located is blue, the material of the light conversion structure is an up-conversion material for converting red light and green light into blue light. Specifically, the up-conversion material may be selected from a host material, i.e., an inorganic compound of NaYF4 and a material doped with Yb, Tm, and Er in a ratio of 20:0.2:0 to 0.5.
Specifically, in the above-mentioned reflective liquid crystal display panel provided by the embodiment of the present invention, when the light of the color corresponding to the pixel unit where the pixel electrode is located is the intermediate frequency light in the visible light band, the light conversion structure generally includes an up-conversion material for converting the low frequency light in the visible light band into the intermediate frequency light, and/or a down-conversion material for converting the high frequency light in the visible light band into the intermediate frequency light. Also, to maximize light utilization, the light conversion structure preferably includes both an up-conversion material and a down-conversion material. Specifically, the down-conversion material may include: one or a combination of the inorganic light emitting material and the organic light emitting material may be, for example, a quantum dot material, a fluorescent material, or the like. The organic light emitting material may be an organic small molecule light emitting material or an organic high molecular polymer light emitting material, which is not limited herein. Specifically, the upconverting material may comprise: an inorganic compound doped with rare earth ions. For example, inorganic compounds such as fluorides, oxides, sulfur-containing compounds, oxyfluorides, halides, etc., may be doped with one or more rare earth ions in corresponding concentrations and proportions, depending on the high frequency light to be converted. For example, NaYF4 with the highest upconversion luminous efficiency can be selected as the host material, and Yb, Tm and Er are doped to 18-60: 0-0.2: 0-2. When a plurality of up-conversion materials are selected as the light conversion structure, the material film layers may be disposed, and the film layers may be adjacent to each other or disposed at intervals, or the materials may be mixed in the same film layer, which is not limited herein.
For example, when the light of the color corresponding to the pixel unit where the pixel electrode is located is green, the material of the light conversion structure may include both an up-conversion material for converting red light into green light and a down-conversion material for converting blue light into green light. Specifically, the down-conversion material may be a green organic light emitting material such as a green quantum dot, a green fluorescent material, and the like, which is not limited herein. Specifically, the up-conversion material can be selected from a host material, namely an inorganic compound of NaYF4 and a material doped with Yb, Tm and Er of 18-25, 0 and 2.
Specifically, since the conversion efficiency of the down-conversion material is generally higher than that of the up-conversion material, in the reflective liquid crystal display panel provided by the embodiment of the present invention, in one pixel as shown in fig. 9, in order to obtain white light, it is necessary to satisfy: the area of the light conversion structure (vertical line filled region) 70 corresponding to blue light is larger than the area of the light conversion structure (white filled region) 70 corresponding to green light is larger than the area of the light conversion structure (horizontal line filled region) 70 corresponding to red light; the specific area ratio needs to be set according to the actual light mixing ratio, and is not limited herein.
Based on same utility model the design, the embodiment of the utility model provides a still provide a display device, include: the embodiment of the present invention provides the above reflective liquid crystal display panel. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. The implementation of the display device can be seen in the above embodiments of the reflective liquid crystal display panel, and repeated descriptions are omitted.
The embodiment of the utility model provides a reflection type liquid crystal display panel and display device, include: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer, an absorption polarizer, a plurality of pixel electrodes, a reflection polarization structure, a plurality of light conversion structures and a reflector, wherein the array substrate and the opposite substrate are oppositely arranged, the liquid crystal layer is positioned between the opposite substrate and the array substrate, the absorption polarizer is positioned on one side, away from the liquid crystal layer, of the opposite substrate, the pixel electrodes are positioned on one side, facing the liquid crystal layer, of the array substrate, the reflection polarization structure is positioned between the pixel electrodes and the array substrate, the light conversion structures are positioned on one; the pixel electrodes correspond to the light conversion structures one to one; the light conversion structure is used for converting incident light into light with a color corresponding to the pixel unit where the pixel electrode is located; the light reflection axis of the reflection type polarization structure is parallel to or perpendicular to the light transmission axis of the absorption type polarizer. Therefore, the arrangement of the light conversion structure can convert incident light into light with a color corresponding to the pixel unit where the pixel electrode is located, and compared with a structure which only reflects light with a specific wavelength and emits light in the prior art, the utilization rate of the light is greatly increased; in addition, the arrangement of the reflection-type polarization structure is combined, light emitted by the light conversion structure enters the liquid crystal layer after being subjected to polarization selection of the reflection-type polarization structure, the problem that pictures cannot be normally displayed due to change of light polarization state caused by the light conversion structure is effectively solved, normal display of the display panel is guaranteed, and the quality of the displayed pictures is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (13)
1. A reflective liquid crystal display panel, comprising: the liquid crystal display panel comprises an array substrate and an opposite substrate which are oppositely arranged, a liquid crystal layer positioned between the opposite substrate and the array substrate, an absorption type polarizer positioned on one side of the opposite substrate, which is far away from the liquid crystal layer, a plurality of pixel electrodes positioned on one side of the array substrate, which faces the liquid crystal layer, a reflection type polarization structure positioned between the pixel electrodes and the array substrate, a plurality of light conversion structures positioned on one side of the reflection type polarization structure, which is far away from the pixel electrodes, and a reflector positioned on one side of the light conversion structure, which is far away from the reflection type polarization structure; wherein,
the pixel electrodes correspond to the light conversion structures one to one; the light conversion structure is used for converting incident light into light with a color corresponding to the pixel unit where the pixel electrode is located;
the light reflection axis of the reflection-type polarization structure is parallel to or perpendicular to the light transmission axis of the absorption-type polarizer.
2. The reflective liquid crystal display panel of claim 1, wherein the reflective polarizing structure is a metal wire grid polarizing structure.
3. The reflective liquid crystal display panel of claim 2, wherein the metal wire grid polarizing structure is electrically connected to the pixel electrode.
4. The reflective liquid crystal display panel of claim 2, wherein the metal wire grid polarizing structure is an integral structure with the pixel electrode.
5. The reflective liquid crystal display panel of claim 1, wherein the mirror is between the array substrate and the light conversion structure.
6. The reflective liquid crystal display panel according to claim 5, wherein the mirror is disposed in the same layer as a source drain metal or in the same layer as a gate metal in the array substrate.
7. The reflective liquid crystal display panel of claim 1, wherein the mirror is located on a side of the array substrate facing away from the opposite substrate.
8. The reflective liquid crystal display panel according to claim 1, wherein the pixel unit in which the pixel electrode corresponding to the light conversion structure is located is low-frequency light in a visible light band;
the light conversion structure includes a down conversion material for converting high frequency light and intermediate frequency light within a visible light band into the low frequency light.
9. The reflective liquid crystal display panel according to claim 1, wherein the pixel unit in which the pixel electrode corresponding to the light conversion structure is located is high-frequency light in a visible light band;
the light conversion structure comprises an up-conversion material for converting low-frequency light and intermediate-frequency light in a visible light band into the high-frequency light.
10. The reflective liquid crystal display panel according to claim 1, wherein the pixel unit in which the pixel electrode corresponding to the light conversion structure is located is a medium frequency light in a visible light band;
the light conversion structure comprises an up-conversion material for converting low-frequency light in a visible light waveband into the intermediate-frequency light and/or a down-conversion material for converting high-frequency light in the visible light waveband into the intermediate-frequency light.
11. The reflective liquid crystal display panel according to claim 8 or 10, wherein the down-conversion material comprises: one or a combination of inorganic luminescent materials and organic luminescent materials.
12. The reflective liquid crystal display panel according to claim 9 or 10, wherein the up-conversion material comprises: an inorganic compound doped with rare earth ions.
13. A display device, comprising: the reflective liquid crystal display panel according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704360.9U CN206892500U (en) | 2017-06-16 | 2017-06-16 | A kind of reflecting type liquid crystal display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704360.9U CN206892500U (en) | 2017-06-16 | 2017-06-16 | A kind of reflecting type liquid crystal display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892500U true CN206892500U (en) | 2018-01-16 |
Family
ID=61317864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720704360.9U Withdrawn - After Issue CN206892500U (en) | 2017-06-16 | 2017-06-16 | A kind of reflecting type liquid crystal display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206892500U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831304A (en) * | 2018-06-21 | 2018-11-16 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| WO2018227990A1 (en) * | 2017-06-16 | 2018-12-20 | 京东方科技集团股份有限公司 | Reflective liquid crystal display panel and display device |
| CN110346859A (en) * | 2018-04-08 | 2019-10-18 | 京东方科技集团股份有限公司 | Optical resonator, display panel |
| CN111208659A (en) * | 2020-03-03 | 2020-05-29 | Tcl华星光电技术有限公司 | Liquid crystal display panel and display device |
| WO2020220792A1 (en) * | 2019-04-30 | 2020-11-05 | 京东方科技集团股份有限公司 | Display panel and manufacturing method for display panel |
| CN113960832A (en) * | 2020-07-21 | 2022-01-21 | 瀚宇彩晶股份有限公司 | display panel |
| CN113960831A (en) * | 2020-07-21 | 2022-01-21 | 瀚宇彩晶股份有限公司 | Display panel |
-
2017
- 2017-06-16 CN CN201720704360.9U patent/CN206892500U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018227990A1 (en) * | 2017-06-16 | 2018-12-20 | 京东方科技集团股份有限公司 | Reflective liquid crystal display panel and display device |
| CN110346859A (en) * | 2018-04-08 | 2019-10-18 | 京东方科技集团股份有限公司 | Optical resonator, display panel |
| CN110346859B (en) * | 2018-04-08 | 2023-05-16 | 京东方科技集团股份有限公司 | Optical cavity, display panel |
| CN108831304A (en) * | 2018-06-21 | 2018-11-16 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| WO2020220792A1 (en) * | 2019-04-30 | 2020-11-05 | 京东方科技集团股份有限公司 | Display panel and manufacturing method for display panel |
| CN111208659A (en) * | 2020-03-03 | 2020-05-29 | Tcl华星光电技术有限公司 | Liquid crystal display panel and display device |
| CN111208659B (en) * | 2020-03-03 | 2021-11-23 | Tcl华星光电技术有限公司 | Liquid crystal display panel and display device |
| US11428965B2 (en) | 2020-03-03 | 2022-08-30 | Tcl China Star Optoelectronics Technology Co., Ltd. | LCD panel and display device |
| CN113960832A (en) * | 2020-07-21 | 2022-01-21 | 瀚宇彩晶股份有限公司 | display panel |
| CN113960831A (en) * | 2020-07-21 | 2022-01-21 | 瀚宇彩晶股份有限公司 | Display panel |
| CN113960832B (en) * | 2020-07-21 | 2024-05-28 | 瀚宇彩晶股份有限公司 | Display Panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206892500U (en) | A kind of reflecting type liquid crystal display panel and display device | |
| CN109031752B (en) | Reflective liquid crystal display panel and display device | |
| US10025145B2 (en) | Display device and electronic apparatus | |
| US10965086B2 (en) | Optical resonant cavity and display panel | |
| US10068949B2 (en) | Display panel | |
| US10816863B2 (en) | Reflective LCD panel including transparent pixel electrode and color filter layer stacked together | |
| CN110824771B (en) | Display device and driving method thereof | |
| CN109814316B (en) | Display panel, driving method thereof and display device | |
| US20110299014A1 (en) | Reflective color display device | |
| US20050287899A1 (en) | Method for displaying image using display having a photoluminescence quenching device | |
| US20180188598A1 (en) | Display panels and polarizers thereof | |
| CN108919554B (en) | Reflective display substrate, manufacturing method thereof and display panel | |
| JP2002107719A (en) | Liquid crystal devices and electronic equipment | |
| US7667799B2 (en) | Liquid crystal display panel and liquid crystal display device using the same | |
| JP2012155068A (en) | Display panel, display device and electronic apparatus | |
| CN116859647A (en) | Double-sided display device and driving method of double-sided display device | |
| JPWO2011040370A1 (en) | Liquid crystal display | |
| CN115988917A (en) | Display panel and display device | |
| CN106094331B (en) | A kind of display panel and display device | |
| JP2005283673A (en) | Liquid crystal display device | |
| KR20000022608A (en) | Display device | |
| JP2002116325A (en) | Light guide plate, lighting device, liquid crystal device, and electronic equipment | |
| CN108717241A (en) | A kind of colored filter, display panel and display device | |
| CN112782893B (en) | Display panel, driving method and preparation method thereof, and display device | |
| Crossland et al. | Photoluminescent liquid crystal displays and a new approach to large screen video applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180116 Effective date of abandoning: 20231114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180116 Effective date of abandoning: 20231114 |