CN113363270B - Pixel arrangement structure and display panel - Google Patents
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- CN113363270B CN113363270B CN202110594403.3A CN202110594403A CN113363270B CN 113363270 B CN113363270 B CN 113363270B CN 202110594403 A CN202110594403 A CN 202110594403A CN 113363270 B CN113363270 B CN 113363270B
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- H—ELECTRICITY
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14603—Special geometry or disposition of pixel-elements, address-lines or gate-electrodes
- H01L27/14605—Structural or functional details relating to the position of the pixel elements, e.g. smaller pixel elements in the center of the imager compared to pixel elements at the periphery
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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
- G02F1/13338—Input devices, e.g. touch panels
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- H—ELECTRICITY
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
- H01L27/14612—Pixel-elements with integrated switching, control, storage or amplification elements involving a transistor
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Abstract
The embodiment of the invention discloses a pixel arrangement structure and a display panel; the pixel arrangement structure comprises a plurality of pixel repeating units distributed in an array, wherein any pixel repeating unit comprises a plurality of pixel units distributed in an array along a first direction and a second direction which are intersected, a plurality of first sub-pixels and a light control sensor which are arranged along a first edge of the pixel repeating unit, wherein the first edge is parallel to the first direction or the second direction, one light control sensor is designed on the first edge of each pixel repeating unit, and other positions which are in the same row or the same column with the light control sensor are designed as the first sub-pixels, so that the proportion of display pixels can be improved, and the transmittance of the pixels is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a pixel arrangement structure and a display panel.
Background
Today, display technology is widely used in various fields of society, wherein demand for interactive display technology is increasing. Touch-sensitive display technology has been widely used commercially, but it has a problem that remote interaction is impossible. Remote interaction can be realized by performing motion capture analysis through the camera, however, the recognition accuracy is low, and phenomena of insensitive response, misoperation and the like seriously affecting user experience can be caused. By integrating the light-operated sensor into the display panel, the laser is used as a control source, so that the interaction technology capable of realizing accurate remote control is provided.
The light control sensor can be integrated with other functions such as display, touch control, pressure sensing, etc. The integrated panel has the advantages of integration, multifunction, lower cost and the like. However, in the integrated panel, the photo sensors squeeze the area of the original display pixels, and although the photo sensor density of the same column is much smaller than the display pixel density, the photo sensors are wired, so that the area of the column without the photo sensors is blocked by a black matrix, which results in the decrease of transmittance.
Disclosure of Invention
The embodiment of the invention provides a pixel arrangement structure and a display panel, which are used for solving the technical problem that the transmittance of the display panel is reduced because the light-operated sensor is integrated into the display panel and occupies the original pixel area in the existing pixel arrangement structure.
In order to solve the problems, the technical scheme provided by the invention is as follows:
an embodiment of the present invention provides a pixel arrangement structure, including a plurality of pixel repeating units distributed in an array, any one of the pixel repeating units including: a plurality of pixel units distributed in an array along a first direction and a second direction which are intersected; a plurality of first sub-pixels and a photo-sensor arranged along a first edge of the pixel repeating unit; wherein the first edge is parallel to the first direction or the second direction.
In at least one embodiment of the present invention, each of the pixel units includes a second sub-pixel, a third sub-pixel, and a fourth sub-pixel arranged along the first direction.
In at least one embodiment of the present invention, the first direction is a row direction, the second direction is a column direction, the first edge is parallel to the second direction, the plurality of second sub-pixels, the plurality of third sub-pixels, and the plurality of fourth sub-pixels are distributed in n rows and m columns, the plurality of first sub-pixels and the photo-sensor are distributed in n rows, where n is an integer greater than 1, and m is an integer greater than 1.
In at least one embodiment of the present invention, the area of the second subpixel, the area of the third subpixel, and the area of the fourth subpixel are equal and S D The area of the first sub-pixel is S L The arrangement of the pixel repeating units satisfies the following relation:
in at least one embodiment of the present invention, the first direction is a row direction, the second direction is a column direction, the first edge is parallel to the first direction, the plurality of second sub-pixels, the plurality of third sub-pixels, and the plurality of fourth sub-pixels are distributed in n rows and m columns, and the plurality of first sub-pixels and the photo-sensor are distributed in m columns.
In at least one embodiment of the present invention, the area ratio of the photo-sensor to the pixel repeating unit is equal to the area ratio of any one of the first sub-pixels to the pixel repeating unit.
In at least one embodiment of the present invention, the area of the first subpixel is equal to the area of the second subpixel.
In at least one embodiment of the invention, the light control sensor is located in the center of the first edge.
In at least one embodiment of the present invention, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are respectively in one-to-one correspondence with one of a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the first sub-pixel is a white sub-pixel.
In at least one embodiment of the present invention, the photo sensor includes a photo transistor, a switching transistor and a storage capacitor electrically connected to each other.
The embodiment of the invention also provides a display panel which comprises the pixel arrangement structure in the embodiment.
The beneficial effects of the invention are as follows: the pixel arrangement structure provided by the embodiment of the invention comprises a plurality of pixel repeating units distributed in an array, wherein any pixel repeating unit comprises a plurality of pixel units distributed in an array along a first direction and a second direction which are intersected, a plurality of first sub-pixels arranged along a first edge of each pixel unit and a light control sensor, and the first edge is parallel to the first direction or the second direction; by designing a light control sensor at the first edge of each pixel repeating unit and designing other positions which are in the same column or row with the light control sensor as first sub-pixels, the proportion of display pixels can be improved, and the transmittance of the pixels can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of a pixel arrangement structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a pixel repeating unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a pixel repeating unit according to the prior art;
fig. 4 is a schematic structural diagram of a photo-sensor according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a pixel repeating unit according to another embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed.
Aiming at the technical problem that the transmittance of the display panel is reduced because the light-operated sensor occupies the original pixel area due to the integration of the light-operated sensor into the display panel in the existing pixel arrangement structure, the embodiment is provided to overcome the defect.
Referring to fig. 1, an embodiment of the present invention provides a pixel arrangement structure 100, where the pixel arrangement structure includes a plurality of pixel repeating units 10 distributed in an array, any one of the pixel repeating units 10 includes a plurality of pixel units 11 distributed in an array along a first direction X and a second direction Y that intersect, the pixel units 11 are used to implement color display, and the pixel units 11 may be minimum light emitting units or not minimum light emitting units, and may further include a plurality of sub-pixels.
The pixel repeating unit 10 further includes a light control sensor 13, the light control sensor 13 is configured to implement remote touch control, and the light control sensor 13 needs to be sensitive, so that the pixel unit 11 needs to avoid the setting of the light control sensor 13, and the pixel repeating unit 10 needs to sacrifice part of the area to provide space for the light control sensor 13.
Since the photo-sensors 13 need to be uniformly distributed, one photo-sensor 13 is inserted into each pixel repeating unit 10, and since the photo-sensors 13 need to be connected to a peripheral circuit by wires, other positions of the columns or rows where the photo-sensors 13 are located are generally shielded by using a black matrix to avoid light leakage, but this way can cause excessive area occupation of the photo-sensors 13 to reduce transmittance, and the embodiments of the present invention solve the above problems by changing the arrangement mode of pixels.
Specifically, referring to fig. 2 and 5, the pixel repeating unit 10 further includes a plurality of first sub-pixels 12, and the first sub-pixels 12 are arranged along a first edge 101 of the pixel repeating unit 10.
The photo-sensor 13 may be disposed at the first edge 101, and the photo-sensor 13 may be arranged along the first edge 101 of the pixel repeating unit 10 together with the plurality of first sub-pixels 12, wherein the first edge 101 is parallel to the first direction X or the second direction Y. By adding a plurality of first sub-pixels 12 which are in the same row or column with the light control sensor 13, the display pixel occupation ratio can be improved, and the transmittance can be further improved.
In an embodiment of the present invention, referring to fig. 2, each of the pixel units 11 includes a second sub-pixel 111, a third sub-pixel 112 and a fourth sub-pixel 113 arranged along the first direction X.
The colors of the second sub-pixel 111, the third sub-pixel 112 and the fourth sub-pixel 113 are different, and the second sub-pixel 111, the third sub-pixel 112 and the fourth sub-pixel 113 are respectively one of red sub-pixel, green sub-pixel and blue sub-pixel.
In an embodiment of the present invention, the first sub-pixel 12 may be a white sub-pixel to improve the display brightness, and in other embodiments, the first sub-pixel 12 may be a sub-pixel of another color, for example, a yellow sub-pixel, an orange sub-pixel, etc., which is not limited herein.
In an embodiment of the present invention, referring to fig. 2, with the first direction X as a row direction and the second direction Y as a column direction, a plurality of the first sub-pixels 12 and the photo-sensors 13 are respectively distributed in a one-to-one correspondence with a plurality of rows of the pixel units 11, that is, any one of the first sub-pixels 12 and the photo-sensors 13 can be in the same row with at least one of the pixel units 11, and a sum of the numbers of the first sub-pixels 12 and the photo-sensors 13 is equal to the number of rows of the pixel units 11.
In the embodiment of the present invention, the photo-sensor 13 may be disposed at the center of the first edge 101, and in other embodiments, the photo-sensor 13 may also be disposed at an end of the first edge 101, which is not limited herein, and only needs to ensure that the spacing between the photo-sensors 13 in each pixel repeating unit 10 is the same, so that each photo-sensor 13 is uniformly distributed.
Referring to fig. 2, in one embodiment of the present invention, the first edge 101 is parallel to the second direction, the plurality of second sub-pixels 111, the plurality of third sub-pixels 112, and the plurality of fourth sub-pixels 113 are distributed in n rows and m columns, the plurality of first sub-pixels 12 and the photo-sensor 13 are distributed in n rows, where n is an integer greater than 1, and m is an integer greater than 1.
Wherein the areas of the sub-pixels of the pixel unit 11 are equal, that is, the area of the second sub-pixel 111, the area of the third sub-pixel 112, and the area of the fourth sub-pixel 113 are equal, and the area is S D The first sub-pixel S L Is of the area S L Preferably, the pixel repeating unit 10 is arranged to satisfy the following relation:
the pixel arrangement satisfying the above relation can bring about a higher display pixel ratio.
In some embodiments of the present invention, the value of m may be 9, the value of n may be 3, and the interval between adjacent pixel repeating units 10 may be set to 1500 μm. At this time, only S needs to be satisfied L /S D Higher display pixel duty ratio can be realized and the transmittance is improved by more than 0.31.
In other embodiments, referring to fig. 5, the first direction X is taken as a row direction, the second direction Y is taken as a column direction, the first edge 101 is parallel to the first direction X, the plurality of second sub-pixels 111, the plurality of third sub-pixels 112 and the plurality of fourth sub-pixels 113 are distributed in n rows and m columns, and the plurality of first sub-pixels 12 and the photo-sensor 13 are distributed in m columns.
In some embodiments of the present invention, the second sub-pixel 111, the third sub-pixel 112, the fourth sub-pixel 113 and the first sub-pixel 12 of the pixel unit 11 may have a bar shape, but not limited thereto, and may have a circular shape, a diamond shape, a square shape or other polygonal shapes.
Preferably, the area of the first sub-pixel 12 is equal to the area of the second sub-pixel 111. In other embodiments, the area of the first sub-pixel 12 may be larger than the area of the second sub-pixel 111, or may be smaller than the area of the second sub-pixel 111, depending on the actual design situation.
Referring to fig. 2, specifically, the lengths of the second sub-pixel 111, the third sub-pixel 112, the fourth sub-pixel 113, and the first sub-pixel 12 in the second direction Y may be the same, and the width of the first sub-pixel 12 in the first direction X may be larger, smaller, or the same than the width of the sub-pixel of the pixel unit 11.
Referring to fig. 3, fig. 3 is a prior art pixel repeating unit arrangement structure, in which, in order to block the wiring of the photo-sensor 13', the wiring is covered with a black matrix 12' at other positions in the same column of the photo-sensor 13', which is generally blackThe area of the matrix 12 'is set to be the same as the area of the photo-sensor 13', and is S L The area of the black matrix 12' is much smaller than the area of the sub-pixels 111', 112', 113', i.e. the width of the black matrix 12' is smaller than the width of the sub-pixels 111', 112', 113', the areas of the sub-pixels 111', 112', 113' of different colors are equal and are all S D In this arrangement, the display pixels comprise the following percentage of the area of the pixel repeating unit:
the display pixel mentioned in the embodiment of the invention is a sub-pixel capable of emitting light.
Referring to fig. 2, in some embodiments of the present invention, the area ratio of the photo-sensor 13 to the pixel repeating unit 10 is equal to the area ratio of any one of the first sub-pixels 12 to the pixel repeating unit 10, and the area of the first sub-pixel 12 is equal to the area of the second sub-pixel 111 and is S D In this arrangement, the display pixels comprise the following percentage of the area of the pixel repeating unit 10:
let RGB% (b) > RGB% (a), only satisfy +.>
/>
Referring to fig. 4, the photo sensor 13 may have a 2T1C structure, and specifically, the photo sensor 13 includes a photo transistor T1, a switching transistor T2 and a storage capacitor C electrically connected to each other.
In the embodiment of the present invention, the photo transistor T1 and the switching transistor T2 may be oxide thin film transistors, and in other embodiments, may be low temperature polysilicon thin film transistors.
Further, the Gate of the switching transistor T2 is connected to the scan line Gate, one of the source and the drain of the switching transistor T2 is connected to the node a, the other of the source and the drain of the switching transistor T2 is connected to the Readout circuit Readout, the Gate of the light sensing transistor T1 is connected to the second power line SVGG, the source of the light sensing transistor T1 is connected to the first power line SVDD, the drain of the light sensing transistor T1 is connected to the node a, one end of the storage capacitor C is connected to the node a, and the other end of the storage capacitor C is connected to the second power line SVGG. The voltages of the first power line SVDD and the second power line SVGG are fixed voltages.
The driving principle of the light-operated sensor 13 is as follows: when a specific light amount is sensed in the active layer of the photo transistor T1, a photocurrent is generated according to the sensed light amount and flows from the source to the drain of the photo transistor T1 via the channel, by applying a driving voltage to the source of the photo transistor T1 through the first power line SVDD and a fixed voltage to the gate of the photo transistor T1 through the second power line SVGG. The photocurrent flows to the storage capacitor C through the drain of the phototransistor T1. Accordingly, charges generated by the photocurrent are accumulated in the storage capacitor C through the first source line SVDD and the second power line SVGG. The charge accumulated in the storage capacitor C flows to the Readout circuit Readout through the source or drain of the switching transistor T2 to be processed by a processing system connected to the Readout circuit, and it is determined whether or not to perform optical touch control based on the value of the photocurrent.
The embodiment of the present invention further provides a display panel, which may be any one of a liquid crystal display panel, an OLED display panel, and a quantum dot display panel, and the display panel includes the pixel arrangement structure 100 in the foregoing embodiment, and the display panel may be a VA, IPS, or TN display panel, which is not limited herein.
The display panel comprises a substrate and a pixel driving circuit arranged on the substrate, wherein the pixel driving circuit comprises a plurality of thin film transistors distributed on the substrate in an array, and the devices of the light control sensor 13 and the thin film transistors can be arranged on the substrate together in the same layer.
The display panel may be a display panel integrated with both light control and capacitive touch functions, or may be a display panel integrated with only light control functions, which is not limited herein.
The pixel arrangement structure and the display panel provided by the embodiment of the invention comprise a plurality of pixel repeating units distributed in an array, wherein any pixel repeating unit comprises a plurality of pixel units distributed in an array along a first direction and a second direction which are intersected, a plurality of first sub-pixels arranged along a first edge of the pixel units and a light control sensor, and the first edge is parallel to the first direction or the second direction; by designing a light control sensor at the first edge of each pixel repeating unit and designing other positions which are in the same column or row with the light control sensor as first sub-pixels, the proportion of display pixels can be improved, and the transmittance of the pixels can be further improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is provided in detail for a pixel arrangement structure and a display panel provided by the embodiments of the present invention, and specific examples are applied to describe the principles and implementations of the present invention, and the description of the above embodiments is only for helping to understand the technical solution and core ideas of the present invention; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A pixel arrangement comprising a plurality of pixel repeating units distributed in an array, any one of said pixel repeating units comprising:
a plurality of pixel units distributed in an array along a first direction and a second direction which are intersected; the method comprises the steps of,
a plurality of first sub-pixels and a photo-sensor arranged along a first edge of the pixel repeating unit; wherein the first edge is parallel to the first direction or the second direction;
any one of the pixel units comprises a second sub-pixel, a third sub-pixel and a fourth sub-pixel which are arranged along the first direction;
taking the first direction as a row direction, the second direction as a column direction, and the first edge being parallel to the second direction, wherein a plurality of the second sub-pixels, a plurality of the third sub-pixels and a plurality of the fourth sub-pixels are distributed in n rows and m columns, a plurality of the first sub-pixels and the light control sensor are distributed in n rows, n is an integer greater than 1, and m is an integer greater than 1;
wherein the area of the second sub-pixel, the area of the third sub-pixel and the area of the fourth sub-pixel are equal and S D The area of the first sub-pixel is S L The arrangement of the pixel repeating units satisfies the following relation:
2. the pixel arrangement according to claim 1, wherein the first direction is a row direction and the second direction is a column direction, the first edge is parallel to the first direction, the plurality of second sub-pixels, the plurality of third sub-pixels, and the plurality of fourth sub-pixels are distributed in n rows and m columns, and the plurality of first sub-pixels and the photo-sensor are distributed in m columns.
3. The pixel arrangement according to claim 2, wherein the area of the first sub-pixel is equal to the area of the second sub-pixel.
4. The pixel arrangement according to claim 1, wherein the photo-sensor is located in the center of the first edge.
5. The pixel arrangement according to claim 1, wherein the second, third and fourth sub-pixels are one-to-one respectively one of a red, green and blue sub-pixel, and the first sub-pixel is a white sub-pixel.
6. The pixel arrangement according to claim 1, wherein the photo sensor comprises a photo transistor, a switching transistor and a storage capacitor electrically connected to each other.
7. A display panel comprising a pixel arrangement according to any one of claims 1 to 6.
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| CN110335892A (en) * | 2019-07-15 | 2019-10-15 | 云谷（固安）科技有限公司 | Pixel arrangement structure, display panel and display device |
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| KR20120092471A (en) * | 2011-02-11 | 2012-08-21 | 삼성디스플레이 주식회사 | Display device and method of operating the same |
| WO2015188146A2 (en) * | 2014-06-05 | 2015-12-10 | Edward Hartley Sargent | Sensors and systems for the capture of scenes and events in space and time |
| CN104009067A (en) * | 2014-06-16 | 2014-08-27 | 信利（惠州）智能显示有限公司 | Organic light-emitting diode display device with touch control function and manufacturing method thereof |
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