CN110703487B - Pixel structure and transparent display - Google Patents

Pixel structure and transparent display Download PDF

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Publication number
CN110703487B
CN110703487B CN201910920323.5A CN201910920323A CN110703487B CN 110703487 B CN110703487 B CN 110703487B CN 201910920323 A CN201910920323 A CN 201910920323A CN 110703487 B CN110703487 B CN 110703487B
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sub
pixel
area
display
transparent
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CN110703487A (en
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郝思坤
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to PCT/CN2019/118998 priority patent/WO2021056763A1/en
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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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement

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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)
  • Geometry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention discloses a pixel structure and a transparent display, wherein the pixel structure eliminates the granular sensation of a display picture and improves the picture quality by forming white and colored light-transmitting areas in the same sub-pixel and the same domain structure.

Description

Pixel structure and transparent display
Technical Field
The invention relates to the technical field of transparent display, in particular to a pixel structure and a transparent display.
Background
In recent years, Liquid Crystal Displays (LCDs) have been widely used in various consumer products due to their unique properties. Today, one of the new LCD markets is the Transparent liquid crystal display (T-LCD), which exhibits transparency that brings a completely new visual experience and has attracted attention. Typical transparent liquid crystal applications, such as embedded light boxes, can see the image displayed by the transparent liquid crystal through external lighting. In addition, when the transparent liquid crystal is switched to the transmissive mode, people are allowed to see the scene or object inside the cabinet. Generally, a box-type transparent liquid crystal device is applied to devices such as a vending machine, a refrigerator, a shopping window machine, and the like. Therefore, the lcd with the flat transparent backlight module is more suitable for the development trend of consumer electronics.
However, the current transparent display and the pixel structure used by the same all adopt independent white sub-pixels or domain structures, as shown in fig. 1 (where the red sub-pixel is 101, the green sub-pixel is 102, the blue sub-pixel is 103, and the white sub-pixel is 104), or adopt the pixel structure shown in fig. 2 (where the red sub-pixel is 201, the green sub-pixel is 202, the blue sub-pixel is 203, and the white sub-pixel is 204). However, the transparent display manufactured by using the pixel structure has a problem in that the white sub-pixel is not shared, so that a graininess of a display screen is likely to occur, thereby reducing display quality.
In view of the above, it is desirable to provide a novel pixel structure or a transparent display using the same to solve the above problems.
Disclosure of Invention
The present invention provides a pixel structure and a transparent display, wherein the pixel structure eliminates the granular feeling of the display picture and improves the picture quality by forming white and color transparent regions in the same sub-pixel and the same domain structure.
According to a first aspect of the invention, a pixel structure is provided. The pixel structure comprises a color resistance layer, a plurality of sub-pixels arranged in an array are arranged on the color resistance layer, each sub-pixel is provided with one of a first sub-pixel area, a second sub-pixel area and a third sub-pixel area, the sub-pixels positioned on the same row are sequentially and repeatedly arranged according to the sequence of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area, the first sub-pixel area, the second sub-pixel area and the third sub-pixel area are different in color, and the sub-pixels positioned on the same column are the same in color; the first sub-pixel area, the second sub-pixel area and the third sub-pixel area are sub-pixel areas with the same structure, and a plurality of display areas and transparent areas which are distributed at intervals are arranged in each sub-pixel area.
In an embodiment of the invention, the display area includes one of a first sub-pixel, a second sub-pixel and a third sub-pixel.
In an embodiment of the invention, the first sub-pixel, the second sub-pixel and the third sub-pixel respectively represent one of blue, green and red.
In an embodiment of the invention, the transparent area is provided with a white sub-pixel area, and the white sub-pixel area is a non-color-resistance area or a white color-resistance area.
In an embodiment of the invention, the display regions and the transparent regions are alternately arranged in a stripe shape.
In an embodiment of the invention, the display areas and the transparent areas are alternately distributed in a cross shape.
In an embodiment of the present invention, the display regions and the transparent regions are alternately distributed in a circle shape.
In an embodiment of the invention, each of the sub-pixel regions has a four-domain structure.
In an embodiment of the present invention, the pixel structure further includes a first metal layer, an active layer, a second metal layer, an insulating layer, a common electrode layer, and a black matrix, which are sequentially stacked; the color resistance layer is arranged between the second metal layer and the insulating layer.
According to a second aspect of the invention, there is provided a transparent display comprising the above-described pixel structure.
The pixel structure has the advantages that the white and colored light transmission areas are formed in the same sub-pixel and the same domain structure, so that the granular feeling of a display picture is eliminated, and the picture quality is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a pixel structure used in a conventional transparent display.
Fig. 2 is a circuit diagram of a pixel structure of a conventional transparent display.
Fig. 3 is a schematic diagram of a pixel structure in the first embodiment of the present invention.
Fig. 4 is a schematic diagram of a pixel structure in a second embodiment of the invention.
Fig. 5 is a schematic view of the pixel structure in a second embodiment of the present invention in layers.
Fig. 6 is a schematic diagram of a pixel structure in a third embodiment of the present invention.
Fig. 7 is a schematic view of the pixel structure in a third embodiment of the present invention in layers.
Fig. 8 is a schematic view of a pixel structure in a fourth embodiment of the invention.
Fig. 9 is a schematic view of the pixel structure in a layer hierarchy in a fourth embodiment of the present invention.
Fig. 10 is a schematic structural diagram of the transparent display according to the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In this patent document, the drawings discussed below and the embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed in any way to limit the scope of the present disclosure. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged system. Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. Further, a terminal according to an exemplary embodiment will be described in detail with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements.
The terms used in the description of the present invention are only used to describe specific embodiments, and are not intended to show the concept of the present invention. Unless the context clearly dictates otherwise, expressions used in the singular form encompass expressions in the plural form. In the present specification, it is to be understood that terms such as "comprising," "having," and "containing" are intended to specify the presence of stated features, integers, steps, acts, or combinations thereof, as taught in the present specification, and are not intended to preclude the presence or addition of one or more other features, integers, steps, acts, or combinations thereof. Like reference symbols in the various drawings indicate like elements.
The embodiment of the invention provides a pixel structure and a transparent display adopting the pixel structure. The details will be described below separately.
Fig. 3 is a schematic diagram of a pixel structure in the first embodiment of the present invention. Fig. 4 is a schematic diagram of a pixel structure in a second embodiment of the invention. Fig. 5 is a schematic view of the pixel structure in a second embodiment of the present invention in layers. Fig. 6 is a schematic diagram of a pixel structure in a third embodiment of the present invention. Fig. 7 is a schematic view of the pixel structure in a third embodiment of the present invention in layers. Fig. 8 is a schematic view of a pixel structure in a fourth embodiment of the invention. Fig. 9 is a schematic view of the pixel structure in a layer hierarchy in a fourth embodiment of the present invention.
Referring to fig. 3, in a first embodiment of the invention, a pixel structure is provided. The pixel structure includes a color resist layer, and a plurality of sub-pixels 310 arranged in an array are disposed on the color resist layer 504 (refer to fig. 5, 7, and 9 in particular).
Each of the sub-pixels 310 has one of a first sub-pixel area 301, a second sub-pixel area 302 and a third sub-pixel area 303. The sub-pixels in the same row are sequentially and repeatedly arranged according to the order of the first sub-pixel area 301, the second sub-pixel area 302 and the third sub-pixel area 303. The first sub-pixel area 301, the second sub-pixel area 302 and the third sub-pixel area 303 represent different colors, such as blue, green and red. The sub-pixels in the same column are in the same color, for example, the sub-pixels in the first column are in blue, the sub-pixels in the second column are in green, and the sub-pixels in the third column are in red. In some other embodiments, the first column of subpixels may appear green or red, the second column of subpixels may appear red or blue, and the third column of subpixels may appear blue or green.
The first sub-pixel area 301, the second sub-pixel area 302 and the third sub-pixel area 303 are sub-pixel areas with the same structure. And a plurality of display areas and transparent areas which are distributed at intervals are arranged in each sub-pixel area. The reference numeral of the display area is denoted by 311 (or 321 or 331), respectively, and the reference numeral of the transparent area is denoted by 312 hereinafter.
Further, the display region includes one of the first subpixel 311, the second subpixel 321, and the third subpixel 331. In this embodiment, the display area in the first sub-pixel area 301 correspondingly includes a first sub-pixel 311, the display area in the second sub-pixel area 302 correspondingly includes a second sub-pixel 321, and the display area in the third sub-pixel area 303 correspondingly includes a third sub-pixel 331.
In this embodiment, the first sub-pixel 311, the second sub-pixel 321 and the third sub-pixel 331 respectively represent blue, green and red. Of course, in some other embodiments, the first sub-pixel 311 may also be green or red, the second sub-pixel 321 is red or blue, and the third sub-pixel 331 is blue or green.
In this embodiment, the transparent area is provided with a white sub-pixel area 312, and the white sub-pixel area 312 is a non-color-resistance area or a white-color-resistance area. The transparent area is provided with the white sub-pixel area 312, and the white sub-pixel area 312 is a non-color-resistance area, so that the transparent area can be transparently displayed, and the transparent display adopting the pixel structure has a function of simultaneously displaying a background image and a picture image. The white sub-pixel region 312, the first sub-pixel region 301 (blue), the second sub-pixel region 302 (green), and the third sub-pixel region 303 (red) can jointly form an RGBW display mode for single display of a picture image, at this time, the transparent display does not display a background image, the display quality of the picture image is ensured, and the white display of the white sub-pixel region 312 improves the brightness of the picture image, so that the energy consumption of the transparent display can be reduced.
In the first embodiment, the display regions and the transparent regions are distributed at intervals. The display area and the transparent area are arranged in the same sub-pixel area, the sub-pixel area is of a four-domain structure, namely the display area and the transparent area are arranged in the same domain area, and the white sub-pixels are shared, so that the granular sensation of a display picture can be eliminated, and the picture quality is improved.
In addition, the display area of the transparent area is one fifth to one half, preferably one third of the display area. The size of the transparent area affects the transparency of the transparent display. Of course, the transparency of the transparent display can be improved by providing a transparent region with a larger display area.
Fig. 4 is a schematic diagram of a pixel structure in a second embodiment of the invention. Fig. 5 is a schematic view of the pixel structure in a second embodiment of the present invention in layers.
In the second embodiment of the present invention, the display regions and the transparent regions are alternately arranged in stripes, such as the display region 311 and the transparent region 312 labeled in fig. 4.
Fig. 6 is a schematic diagram of a pixel structure in a third embodiment of the present invention. Fig. 7 is a schematic view of the pixel structure in a third embodiment of the present invention in layers.
In a third embodiment of the present invention, the display regions and the transparent regions are alternately arranged in a crisscross pattern. As indicated in fig. 6 by display region 311, transparent region 312.
Fig. 8 is a schematic diagram of a pixel structure in a fourth embodiment of the present invention. Fig. 9 is a schematic view of the pixel structure in a layer hierarchy in a fourth embodiment of the present invention.
In a fourth embodiment of the present invention, the display regions and the transparent regions are alternately distributed in a circle shape. As indicated in fig. 8 for display region 311, transparent region 312.
In the first to fourth embodiments of the present invention, each of the sub-pixels has a four-domain structure. That is, the pixel electrodes of the sub-pixels are formed in a four-domain structure of a zigzag pattern.
In the second to fourth embodiments of the present invention, the pixel structure further includes a first metal layer 501, an active layer 502, a second metal layer 503, an insulating layer 505, a common electrode layer 506, and a black matrix 507, which are sequentially stacked; the color resist layer 504 is disposed between the second metal layer 503 and the insulating layer 505. The insulating layer 505 may be an organic insulating layer or an inorganic insulating layer. In addition, the structures of the first metal layer 501, the active layer 502, the second metal layer 503, the insulating layer 505, the common electrode layer 506 and the black matrix 507 and the preparation method thereof are known to those skilled in the art and are not described herein again.
Referring to fig. 10, the present invention also provides a transparent display 900 including the pixel structure 100 described above. The pixel structure 100 includes a color resist layer 504, a plurality of sub-pixels arranged in an array are disposed on the color resist layer 504, and a display area and a transparent area are disposed in each sub-pixel. The specific structure of these components is as described above and will not be described in detail here. In addition, the pixel structure in the transparent display further includes an array substrate (not shown), the array substrate is provided with a plurality of thin film transistors (not shown), and the plurality of thin film transistors are in one-to-one correspondence with the display regions and the transparent regions in the first sub-pixel region 301, the second sub-pixel region 302 and the third sub-pixel region 303.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A pixel structure is characterized by comprising a color resistance layer, wherein a plurality of sub-pixels which are arranged in an array mode are arranged on the color resistance layer, each sub-pixel is provided with one of a first sub-pixel area, a second sub-pixel area and a third sub-pixel area, the sub-pixels positioned on the same row are sequentially and repeatedly arranged according to the sequence of the first sub-pixel area, the second sub-pixel area and the third sub-pixel area, the first sub-pixel area, the second sub-pixel area and the third sub-pixel area are different in color, and the sub-pixels positioned on the same column are the same in color; the first sub-pixel area, the second sub-pixel area and the third sub-pixel area are sub-pixel areas with the same structure, and a plurality of display areas and a plurality of transparent areas which are distributed at intervals are arranged in each sub-pixel area; the transparent area is provided with a white sub-pixel area which is a non-color resistance area or a white color resistance area.
2. The pixel structure of claim 1, wherein the display area comprises one of a first sub-pixel, a second sub-pixel, and a third sub-pixel.
3. The pixel structure according to claim 2, wherein the first sub-pixel, the second sub-pixel and the third sub-pixel respectively represent one of blue, green and red.
4. The pixel structure of claim 1, wherein the display regions and the transparent regions are alternately striped.
5. The pixel structure of claim 1, wherein the display regions are spaced apart from the transparent regions by a cross.
6. The pixel structure of claim 1, wherein the display regions are spaced apart from the transparent regions in a circle.
7. The pixel structure of claim 1, wherein each of the sub-pixel regions is a four-domain structure.
8. The pixel structure according to claim 1, further comprising a first metal layer, an active layer, a second metal layer, an insulating layer, a common electrode layer, and a black matrix, which are sequentially stacked; the color resistance layer is arranged between the second metal layer and the insulating layer.
9. A transparent display, characterized in that it comprises a pixel structure according to any one of claims 1 to 8.
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CN111477113B (en) * 2020-05-25 2021-12-03 京东方科技集团股份有限公司 Transparent display panel and display device
CN114779541A (en) * 2022-04-02 2022-07-22 Tcl华星光电技术有限公司 Display panel

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