CN105807531B - Microcapsule electrophoresis electronic paper color display screen and color display layer thereof - Google Patents
Microcapsule electrophoresis electronic paper color display screen and color display layer thereof Download PDFInfo
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- CN105807531B CN105807531B CN201410856386.6A CN201410856386A CN105807531B CN 105807531 B CN105807531 B CN 105807531B CN 201410856386 A CN201410856386 A CN 201410856386A CN 105807531 B CN105807531 B CN 105807531B
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Abstract
The invention provides a microcapsule electrophoresis electronic paper color display screen and a color display layer thereof, wherein the color display layer comprises a plurality of color pixel display units which are formed by microcapsules and are uniformly and regularly arranged; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit and a third color basic pixel display unit in a shape of "|"; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, and the third color basic pixel display unit comprises at least one third color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, and the third color microcapsule contains third charged pigment particles and an electrophoretic liquid.
Description
Technical Field
The invention relates to an electronic paper display screen, in particular to a microcapsule electrophoresis electronic paper color display screen and a color display layer thereof.
Background
The electronic paper (E-paper) is a novel display material, is a bistable display technology based on the electrophoresis principle, has wide application, has the superior performances of ultralow energy consumption, thinness like paper, flexibility and the like of books, can express characters and pictures through black and white and light depth changes of colors, and has very similar display effect to real paper books. At present, electronic paper display screens are widely applied to the fields of electronic readers (electronic books), electronic price boards, smart cards, watches, mobile phones, industrial instruments, dynamic display billboards, media products and the like.
However, the existing electronic paper display screen is mainly black and white, and is lack of a color electronic paper technology.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide a color electronic paper technology with good display effect.
In order to solve the above problems, the present invention provides a microcapsule electrophoretic color display layer for electronic paper, which comprises a plurality of color pixel display units formed by microcapsules and arranged uniformly and regularly; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit and a third color basic pixel display unit in a shape of "|"; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, and the third color basic pixel display unit comprises at least one third color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, and the third color microcapsule contains third charged pigment particles and an electrophoretic liquid.
As a preferred embodiment of the microcapsule electrophoretic electronic paper color display layer of the present invention, the capsule walls of the first color microcapsule, the second color microcapsule and the third color microcapsule are all colorless and transparent; the first charged pigment particles are red pigment particles, the second charged pigment particles are green pigment particles, and the third charged pigment particles are blue pigment particles.
As a preferred embodiment of the microcapsule electrophoretic electronic paper color display layer of the present invention, the first color microcapsule wall is a red transparent wall, the second color microcapsule wall is a green transparent wall, and the third color microcapsule wall is a blue transparent wall; the first, second and third charged pigment particles are white or black pigment particles.
As a preferred embodiment of the color display layer of the microcapsule electrophoretic electronic paper, the microcapsule has a size of 10um to 100 um.
As a preferred embodiment of the microcapsule electrophoretic color display layer of the electronic paper according to the present invention, a solid adhesive is disposed between adjacent microcapsules.
The invention also provides a microcapsule electrophoresis electronic paper color display layer, which comprises a plurality of color pixel display units which are formed by microcapsules and are uniformly and regularly arranged; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit, a third color basic pixel display unit and a fourth color basic pixel display unit in a field shape; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, the third color basic pixel display unit comprises at least one third color microcapsule, and the fourth color basic pixel display unit comprises at least one fourth color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, the third color microcapsule contains third charged pigment particles and an electrophoretic liquid, and the fourth color microcapsule contains fourth charged pigment particles and an electrophoretic liquid.
As a preferred embodiment of the microcapsule electrophoretic electronic paper color display layer of the present invention, the capsule walls of the first color microcapsule, the second color microcapsule, the third color microcapsule and the fourth color microcapsule are all colorless and transparent; the first charged pigment particles are red pigment particles, the second charged pigment particles are green pigment particles, the third charged pigment particles are blue pigment particles, and the fourth charged pigment particles are white or black pigment particles.
As a preferred embodiment of the microcapsule electrophoretic electronic paper color display layer of the present invention, the first color microcapsule wall is a red transparent wall, the second color microcapsule wall is a green transparent wall, the third color microcapsule wall is a blue transparent wall, and the fourth color microcapsule wall is a white transparent wall; the first charged pigment particles, the second charged pigment particles and the third charged pigment particles are white or black pigment particles.
As a preferred embodiment of the color display layer of the microcapsule electrophoretic electronic paper, the microcapsule has a size of 10um to 100 um.
The invention also provides a color microcapsule electrophoresis electronic paper display screen, which comprises a transparent conducting layer, a driving substrate and a microcapsule electrophoresis display layer arranged between the transparent conducting layer and the driving substrate; the microcapsule electrophoretic display layer is the microcapsule electrophoretic color display layer according to any one of claims 1 to 9.
The invention realizes the microcapsule electrophoresis color display by forming a basic display unit by each microcapsule displaying different basic colors and forming a color pixel display unit by three or four basic display units displaying different colors. The electronic paper color display does not need an optical filter, and has the advantages of good color gamut, high contrast and the like.
Drawings
Fig. 1 is a schematic structural diagram of a color microcapsule electrophoretic e-paper display screen in a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a microcapsule electrophoretic electronic paper color display layer in a preferred embodiment of the invention.
Fig. 3 is a schematic structural diagram of a color pixel display unit in the color display layer of the microcapsule electrophoretic electronic paper shown in fig. 2.
Fig. 4 is a schematic structural diagram of a color display layer of a microcapsule electrophoretic electronic paper in a preferred embodiment of the invention.
Fig. 5 is a schematic structural diagram of a color pixel display unit in the color display layer of the microcapsule electrophoretic electronic paper shown in fig. 4.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
The microcapsule electrophoresis electronic paper color display layer comprises a plurality of uniform and regularly arranged color pixel display units formed by microcapsules; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit and a third color basic pixel display unit in a shape of "|"; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, and the third color basic pixel display unit comprises at least one third color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, and the third color microcapsule contains third charged pigment particles and an electrophoretic liquid.
The capsule walls of the first color microcapsule, the second color microcapsule and the third color microcapsule are all colorless and transparent; the first charged pigment particles are red pigment particles, the second charged pigment particles are green pigment particles, and the third charged pigment particles are blue pigment particles. The size of the microcapsule is 10um-100um, specifically 10um, 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, 100um and so on. And a solid adhesive is arranged between the adjacent microcapsules.
In another embodiment, the first color microcapsule wall is a red transparent wall, the second color microcapsule wall is a green transparent wall, and the third color microcapsule wall is a blue transparent wall; the first, second and third charged pigment particles are white or black pigment particles.
Providing a microcapsule electrophoresis color display layer, which comprises a plurality of uniform and regularly arranged color pixel display units formed by microcapsules; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit, a third color basic pixel display unit and a fourth color basic pixel display unit in a field shape; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, the third color basic pixel display unit comprises at least one third color microcapsule, and the fourth color basic pixel display unit comprises at least one fourth color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, the third color microcapsule contains third charged pigment particles and an electrophoretic liquid, and the fourth color microcapsule contains fourth charged pigment particles and an electrophoretic liquid.
The capsule walls of the first color microcapsule, the second color microcapsule, the third color microcapsule and the fourth color microcapsule are all colorless and transparent; the first charged pigment particles are red pigment particles, the second charged pigment particles are green pigment particles, the third charged pigment particles are blue pigment particles, and the fourth charged pigment particles are white or black pigment particles. The size of the microcapsule is 10um-100um, specifically 10um, 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, 100um and so on.
In other embodiments, the first color microcapsule wall may be a red transparent wall, the second color microcapsule wall is a green transparent wall, the third color microcapsule wall is a blue transparent wall, and the fourth color microcapsule wall is a white transparent wall; the first, second and third charged pigment particles are white or black pigment particles.
The microcapsule electrophoretic electronic paper color display screen comprises a transparent conductive layer, a driving substrate and a microcapsule electrophoretic display layer arranged between the transparent conductive layer and the driving substrate; the microcapsule electrophoretic display layer is the microcapsule electrophoretic color display layer.
Referring to fig. 1 to 3, there is provided a microcapsule electrophoretic electronic paper color display screen, which includes a transparent conductive layer 12, an electrophoretic display layer 11, a driving substrate 13, and a display driver. The electrophoretic display layer 11 is disposed between the transparent conductive layer 12 and the driving substrate 13.
The transparent conductive layer 12 is made of a transparent conductive material.
The electrophoretic display layer 11 is a microcapsule electrophoretic color display layer, which includes a plurality of uniform and regularly arranged color pixel display units 110 formed of microcapsules. Each color pixel display unit is formed by arranging a first color basic pixel display unit 111, a second color basic pixel display unit 112, a third color basic pixel display unit 113 and a fourth color basic pixel display unit 114 in a "field" shape. The first color basic pixel display unit 111 includes at least one first color microcapsule, the second color basic pixel display unit 112 includes at least one second color microcapsule, the third color basic pixel display unit 113 includes at least one third color microcapsule, and the fourth color basic pixel display unit 114 includes at least one fourth color microcapsule. The size of the microcapsule is 10um-100um, specifically 10um, 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, 100um and so on. And a solid adhesive is arranged between the adjacent microcapsules, and the microcapsules are mutually fixed through the adhesive.
The capsule walls of the first color microcapsule, the second color microcapsule, the third color microcapsule and the fourth color microcapsule are all colorless and transparent. The microcapsule is packed with transparent electrophoretic liquid, positively or negatively charged particles of one color and neutral particles of another color. The first color microcapsule contains red charged pigment particles, white neutral pigment particles and an electrophoretic liquid, the second color microcapsule contains green charged pigment particles, white neutral pigment particles and an electrophoretic liquid, the third color microcapsule contains blue charged pigment particles, white neutral pigment particles and an electrophoretic liquid, and the fourth color microcapsule contains white charged pigment particles, black neutral pigment particles and an electrophoretic liquid.
The driving substrate 13 includes a driving substrate main body, and a plurality of color pixel driving units uniformly disposed on the driving substrate main body, each color pixel driving unit includes a first color basic pixel driving unit, a second color basic pixel driving unit, a third color basic pixel driving unit, and a fourth color basic pixel driving unit, and the first color basic pixel driving unit, the second color basic pixel driving unit, the third color basic pixel driving unit, and the fourth color basic pixel driving unit are arranged in a "field" shape. The first color basic pixel driving unit, the second color basic pixel driving unit, the third color basic pixel driving unit and the fourth color basic pixel driving unit of the same color pixel driving unit are insulated and not conducted. The basic pixel driving unit comprises at least one driving electrode.
The first color basic pixel display unit is arranged corresponding to the position of the first color basic pixel driving unit, the second color basic pixel display unit is arranged corresponding to the position of the second color basic pixel driving unit, the third color basic pixel display unit is arranged corresponding to the position of the third color basic pixel driving unit, and the fourth color basic pixel display unit is arranged corresponding to the position of the transparent basic filtering unit.
The display driver moves the charged pigment particles in the microcapsules to perform display by driving a driving voltage applied between the driving substrate 13 and the transparent conductive layer 12.
The display driver includes a memory and a processor. The memory is used for storing a driving waveform table of the color pixel display units, and each color pixel display unit corresponds to four basic pixel display units displaying different colors. Each color pixel display unit is provided with a plurality of corresponding color gray scales, each basic pixel display unit is provided with a plurality of corresponding basic gray scales, and one basic gray scale to the other basic gray scale corresponds to one basic driving waveform. The gray scale displayed by the first color basic pixel display unit is a first basic gray scale; the gray scale displayed by the second color basic pixel display unit is a second basic gray scale; the gray scale displayed by the third color basic pixel display unit is a third basic gray scale; the gray scale displayed by the fourth color basic pixel display unit is a fourth basic gray scale. Each color gray scale corresponds to a first basic gray scale, a second basic gray scale, a third basic gray scale and a fourth basic gray scale.
The processor is used for obtaining the current color gray scale of the color pixel display unit, namely obtaining the current gray scale of the first color basic pixel display unit, the second color basic pixel display unit, the third color basic pixel display unit and the fourth color basic pixel display unit of the color pixel display unit correspondingly. And obtaining the next color gray scale of the color pixel display unit, and obtaining the next basic gray scale of the first color basic pixel display unit, the second color basic pixel display unit, the third color basic pixel display unit and the fourth color basic pixel display unit of the color pixel display unit corresponding to the next color gray scale. The corresponding driving waveform table searches for the driving waveform corresponding to the color pixel display unit from the current color gray scale to the next color gray scale, namely the basic driving waveform of the first color basic pixel display unit from the current basic gray scale to the next basic gray scale, the basic driving waveform of the second color basic pixel display unit from the current basic gray scale to the next basic gray scale, the basic driving waveform of the third color basic pixel display unit from the current basic gray scale to the next basic gray scale, and the basic driving waveform of the fourth color basic pixel display unit from the current basic gray scale to the next basic gray scale. And outputting corresponding basic driving waveforms to a first color basic pixel display unit, a second color basic pixel display unit, a third color basic pixel display unit and a fourth color basic pixel display unit of the color pixel display unit respectively.
Referring to fig. 4-5, a microcapsule electrophoretic electronic paper color display screen is provided, which includes a transparent conductive layer, an electrophoretic display layer, a driving substrate, and a display driver. The electrophoresis display layer is arranged between the transparent conductive layer and the driving substrate.
The transparent conductive layer 12 is made of a transparent conductive material.
The electrophoretic display layer 11 is a microcapsule electrophoretic color display layer, which includes a plurality of uniform and regularly arranged color pixel display units 110 formed of microcapsules. Each color pixel display means is configured by arranging first color basic pixel display means 115, second color basic pixel display means 116, and third color basic pixel display means 117 in an "|". The first color basic pixel display unit 115 includes at least one first color microcapsule, the second color basic pixel display unit 116 includes at least one second color microcapsule, and the third color basic pixel display unit 117 includes at least one third color microcapsule. The size of the microcapsule is 10um-100 um. And a solid adhesive is arranged between the adjacent microcapsules, and the microcapsules are mutually fixed through the adhesive.
The capsule walls of the first color microcapsule, the second color microcapsule and the third color microcapsule are all colorless and transparent; the microcapsule is wrapped with transparent electrophoretic liquid and color particles with positive charges and negative charges. The first color microcapsule contains red positively charged pigment particles, white negatively charged pigment particles and electrophoretic fluid, the second color microcapsule contains green positively charged pigment particles, white negatively charged pigment particles and electrophoretic fluid, and the third color microcapsule contains blue positively charged pigment particles, white negatively charged pigment particles and electrophoretic fluid.
The driving substrate 13 includes a driving substrate main body, and a plurality of color pixel driving units uniformly disposed on the driving substrate main body, and each color pixel driving unit includes a first color basic pixel driving unit, a second color basic pixel driving unit, and a third color basic pixel driving unit. The first color basic pixel driving unit, the second color basic pixel driving unit and the third color basic pixel driving unit are arranged in an "|" shape. The first color basic pixel driving unit, the second color basic pixel driving unit and the third color basic pixel driving unit of the same color pixel driving unit are insulated and not conducted. The basic pixel driving unit comprises at least one driving electrode.
The first color basic pixel display unit is arranged corresponding to the position of the first color basic pixel driving unit, the second color basic pixel display unit is arranged corresponding to the position of the second color basic pixel driving unit, and the third color basic pixel display unit is arranged corresponding to the position of the third color basic pixel driving unit.
The display driver moves the charged pigment particles in the microcapsules to perform display by driving a driving voltage applied between the driving substrate 13 and the transparent conductive layer 12.
The display driver includes a memory and a processor. The memory is used for storing a driving waveform table of the color pixel display units, and each color pixel display unit corresponds to three basic pixel display units displaying different colors. Each color pixel display unit is provided with a plurality of corresponding color gray scales, each basic pixel display unit is provided with a plurality of corresponding basic gray scales, and one basic gray scale to the other basic gray scale corresponds to one basic driving waveform. The gray scale displayed by the first color basic pixel display unit is a first basic gray scale; the gray scale displayed by the second color basic pixel display unit is a second basic gray scale; the gray scale displayed by the third color basic pixel display unit is a third basic gray scale. Each color gray scale corresponds to a first basic gray scale, a second basic gray scale and a third basic gray scale.
The processor is used for obtaining the current color gray scale of the color pixel display unit, namely obtaining the current gray scale of the first color basic pixel display unit, the second color basic pixel display unit and the third color basic pixel display unit of the color pixel display unit correspondingly. And obtaining the next color gray scale of the color pixel display unit, and obtaining the next basic gray scale of the first color basic pixel display unit, the second color basic pixel display unit and the third color basic pixel display unit of the color pixel display unit corresponding to the next color gray scale. The corresponding driving waveform table searches for the driving waveform corresponding to the color pixel display unit from the current color gray scale to the next color gray scale, namely the basic driving waveform of the first color basic pixel display unit from the current basic gray scale to the next basic gray scale, the basic driving waveform of the second color basic pixel display unit from the current basic gray scale to the next basic gray scale, and the basic driving waveform of the third color basic pixel display unit from the current basic gray scale to the next basic gray scale. And outputting corresponding basic driving waveforms to a first color basic pixel display unit, a second color basic pixel display unit and a third color basic pixel display unit of the color pixel display unit respectively.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A microcapsule electrophoresis electronic paper color display layer comprises a plurality of uniform and regularly arranged color pixel display units formed by microcapsules; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit and a third color basic pixel display unit in a shape of "|"; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, and the third color basic pixel display unit comprises at least one third color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, and the third color microcapsule contains third charged pigment particles and an electrophoretic liquid;
the capsule wall of the first-color microcapsule is a red transparent capsule wall, the capsule wall of the second-color microcapsule is a green transparent capsule wall, and the capsule wall of the third-color microcapsule is a blue transparent capsule wall; the first charged pigment particles, the second charged pigment particles and the third charged pigment particles are white or black pigment particles, and the size of the microcapsule is 20um-90 um.
2. The microcapsule electrophoretic color display layer of electronic paper as claimed in claim 1, wherein a solid adhesive is disposed between adjacent microcapsules.
3. A microcapsule electrophoresis electronic paper color display layer comprises a plurality of uniform and regularly arranged color pixel display units formed by microcapsules; each color pixel display unit is formed by arranging a first color basic pixel display unit, a second color basic pixel display unit, a third color basic pixel display unit and a fourth color basic pixel display unit in a field shape; the first color basic pixel display unit comprises at least one first color microcapsule, the second color basic pixel display unit comprises at least one second color microcapsule, the third color basic pixel display unit comprises at least one third color microcapsule, and the fourth color basic pixel display unit comprises at least one fourth color microcapsule; the first color microcapsule contains first charged pigment particles and an electrophoretic liquid, the second color microcapsule contains second charged pigment particles and an electrophoretic liquid, the third color microcapsule contains third charged pigment particles and an electrophoretic liquid, and the fourth color microcapsule contains fourth charged pigment particles and an electrophoretic liquid;
the first color microcapsule wall is a red transparent capsule wall, the second color microcapsule wall is a green transparent capsule wall, the third color microcapsule wall is a blue transparent capsule wall, and the fourth color microcapsule wall is a white transparent capsule wall; the first charged pigment particles, the second charged pigment particles and the third charged pigment particles are white or black pigment particles; the size of the microcapsule is 20um-90 um.
4. A microcapsule electrophoresis electronic paper color display screen comprises a transparent conducting layer, a driving substrate and a microcapsule electrophoresis display layer arranged between the transparent conducting layer and the driving substrate; the microcapsule electrophoretic display layer is the microcapsule electrophoretic color display layer according to any one of claims 1 to 3.
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| CN108165271B (en) * | 2018-02-27 | 2021-04-27 | 南方科技大学 | Microcapsule electrophoresis based color quantum dot photoluminescence material and luminescence method and application thereof |
| CN109656077A (en) * | 2019-01-24 | 2019-04-19 | 中山大学 | Stretchable color electric paper and the stretchable color electric paper of self-powered |
| CN111965914A (en) * | 2020-08-13 | 2020-11-20 | 电子科技大学中山学院 | Color electronic ink screen and display method thereof |
| CN112083614A (en) * | 2020-08-24 | 2020-12-15 | 广州融捷显示科技有限公司 | Electrophoretic display liquid, electrophoretic color display device and manufacturing method |
| CN113109976B (en) * | 2021-04-22 | 2022-04-26 | 上海大学 | Color electronic paper |
| CN113777848A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen based on five special colors and color development method thereof |
| CN113777852A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen based on four special colors and color development method thereof |
| CN113777851A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen for realizing four special colors and color development method |
| CN113791512A (en) * | 2021-10-09 | 2021-12-14 | 珠海读书郎软件科技有限公司 | Electronic ink screen for generating special color based on mixed color |
| CN113777849A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen based on four special colors and color development method thereof |
| CN113777854A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen for realizing three special colors |
| CN113777850A (en) * | 2021-10-09 | 2021-12-10 | 珠海读书郎软件科技有限公司 | Electronic ink screen for realizing three special colors |
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