CN113608389A - High contrast dyestuff liquid crystal display - Google Patents
High contrast dyestuff liquid crystal display Download PDFInfo
- Publication number
- CN113608389A CN113608389A CN202110847874.0A CN202110847874A CN113608389A CN 113608389 A CN113608389 A CN 113608389A CN 202110847874 A CN202110847874 A CN 202110847874A CN 113608389 A CN113608389 A CN 113608389A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- glass substrate
- material layer
- molecules
- dye
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 59
- 239000000975 dye Substances 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 239000011521 glass Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 11
- 239000000994 contrast dye Substances 0.000 claims abstract description 9
- 230000005684 electric field Effects 0.000 claims description 11
- 238000002834 transmittance Methods 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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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
- G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
- G02F1/1351—Light-absorbing or blocking layers
-
- 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
- G02F1/133302—Rigid substrates, e.g. inorganic substrates
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Inorganic Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a high-contrast dye liquid crystal display screen, which comprises a glass substrate and a liquid crystal material layer, wherein the glass substrate comprises an upper substrate and a lower substrate with a conductive effect, the liquid crystal material layer is arranged between the upper substrate and the lower substrate, the liquid crystal material layer comprises liquid crystal molecules and dye molecules with columnar structures, and the liquid crystal molecules can rotate at an angle.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a high-contrast dye liquid crystal display screen.
Background
With the continuous development of science and technology, people have higher and higher requirements on display screens, the contrast of the display screens is a main index, the conventional common LCD display screens all need to use a polarizer to generate linearly polarized light and enable the linearly polarized light to penetrate through an inspection polarizer or be shielded by the inspection polarizer after passing through a liquid crystal layer, so that the display of images is realized, but the light transmittance is only 35% -45% due to the use of the polarizer, the light loss of backlight after penetrating through the LCD is large, and the backlight is in a semitransparent state.
Due to the adoption of the display screen with the polaroid, the thickness of the display screen is thick, the light transmittance is poor, and the production cost is high, so that the technical problems existing at present need to be solved.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a high contrast dye liquid crystal display screen, aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a high-contrast dye liquid crystal display screen comprises a glass substrate and a liquid crystal material layer, wherein the glass substrate comprises an upper substrate and a lower substrate which have a conductive effect, the liquid crystal material layer is arranged between the upper substrate and the lower substrate, the liquid crystal material layer comprises liquid crystal molecules and dye molecules which are of columnar structures, and the liquid crystal molecules can rotate at an angle;
when the liquid crystal material layer acts on the glass substrate without voltage, the glass substrate does not generate an electric field, so that liquid crystal molecules and dye molecules in the liquid crystal material layer are in a first standby state vertical to the glass substrate;
when the liquid crystal material layer acts on the glass substrate with the voltage, the glass substrate generates an electric field, so that liquid crystal molecules in the liquid crystal material layer are influenced by the strength of the electric field to rotate angularly, and the dye molecules are driven to rotate angularly, so that the liquid crystal molecules and the dye molecules are in a second use state parallel to the glass substrate.
Preferably, the dye concentration ratio of the dye molecules is 1% to 5%.
Preferably, the glass substrate is driven with a voltage of 6V or less.
Preferably, the distance between the upper substrate and the lower substrate is 8-10 μm.
The invention has the beneficial effects that: through adopting the liquid crystal material layer to replace ordinary liquid crystal material and polaroid in the past, do not need the polaroid also can realize image display in the demonstration in use to electrify and make it form the electric field to the glass substrate, make the liquid crystal molecule drive the dyestuff molecule through the effect of electric field and carry out the angular rotation, make the dyestuff molecule rotate to different angles, reach the effect of extinction, through the extinction effect of different degrees, thereby realize the change degree of luminousness, realize the demonstration of image.
The liquid crystal material layer adopted by the invention has a stable structure, can realize image display without a polaroid, can reduce the thickness of the display screen, can reduce the production cost of enterprises, has light transmittance of more than 65 percent, and has good ornamental value, and the contrast of the display screen can realize a better level by manufacturing the distance between the upper substrate and the lower substrate of the glass substrate into 8-10 mu m, can reach more than 2.5, and meets the visual experience effect of users.
Drawings
FIG. 1 is a schematic view of the overall structure of the invention, not in use.
FIG. 2 is a schematic diagram of the structure of the power-on operation state of the present invention.
10. A glass substrate; 20. a layer of liquid crystal material; 21. liquid crystal molecules; 22. dye molecules.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, a high contrast dye liquid crystal display panel includes a glass substrate 10 and a liquid crystal material layer 20, the glass substrate 10 includes an upper substrate and a lower substrate having a conductive effect, the liquid crystal material layer 20 is disposed between the upper substrate and the lower substrate, and the liquid crystal material layer 20 includes liquid crystal molecules 21 and dye molecules 22 having a columnar structure, and the liquid crystal molecules 21 can rotate angularly within a certain range;
when the liquid crystal material layer 20 acts on the glass substrate 10 without voltage, the glass substrate 10 does not generate an electric field, so that the liquid crystal molecules 21 and the dye molecules 22 in the liquid crystal material layer 20 are in a first standby state perpendicular to the glass substrate 10, and no absorption effect is provided for light at this time;
when the liquid crystal material layer 20 acts on the glass substrate 10 with voltage, the glass substrate 10 generates an electric field, which causes the liquid crystal molecules 21 in the liquid crystal material layer 20 to rotate angularly under the influence of the strength of the electric field and drives the dye molecules 22 to rotate angularly together, when the liquid crystal molecules 21 and the dye molecules 22 are in a second use state parallel to the glass substrate 10, the light transmittance of light is changed, and at this time, the dye molecules 22 are in a light absorption state.
The glass substrate 10 can be driven by a voltage of 6V or less, and the rotation angle of the liquid crystal material layer 20 can be controlled by different voltage intensities, thereby realizing different light absorption effects.
Wherein the concentration ratio of the dye molecules 22 is 1% -5%, and the intensity effect of light absorption can be controlled by different concentration ratios.
The distance between the upper substrate and the lower substrate of the used glass substrate 10 is 8-10 μm, so that the transmittance of the display screen is ensured when the display screen is not in operation, and the transmittance of the display screen is reduced when the display screen is in operation, so that the contrast of the display screen reaches the optimal degree and can reach more than 2.5.
The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A high contrast dye liquid crystal display screen, its characterized in that: the glass substrate comprises an upper substrate and a lower substrate with a conductive effect, the liquid crystal material layer is arranged between the upper substrate and the lower substrate, the liquid crystal material layer comprises liquid crystal molecules and dye molecules with columnar structures, and the liquid crystal molecules can rotate at an angle;
when the liquid crystal material layer acts on the glass substrate without voltage, the glass substrate does not generate an electric field, so that liquid crystal molecules and dye molecules in the liquid crystal material layer are in a first standby state vertical to the glass substrate;
when the liquid crystal material layer acts on the glass substrate with the voltage, the glass substrate generates an electric field, so that liquid crystal molecules in the liquid crystal material layer are influenced by the strength of the electric field to rotate angularly, and the dye molecules are driven to rotate angularly, so that the liquid crystal molecules and the dye molecules are in a second use state parallel to the glass substrate.
2. The high contrast dye liquid crystal display panel according to claim 1, wherein: the dye concentration ratio of the dye molecules is 1% -5%.
3. The high contrast dye liquid crystal display panel according to claim 1, wherein: the glass substrate is driven with a voltage of 6V or less.
4. The high contrast dye liquid crystal display panel according to claim 1, wherein: the distance between the upper substrate and the lower substrate is 8-10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847874.0A CN113608389A (en) | 2021-07-27 | 2021-07-27 | High contrast dyestuff liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110847874.0A CN113608389A (en) | 2021-07-27 | 2021-07-27 | High contrast dyestuff liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113608389A true CN113608389A (en) | 2021-11-05 |
Family
ID=78305502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110847874.0A Pending CN113608389A (en) | 2021-07-27 | 2021-07-27 | High contrast dyestuff liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113608389A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204086744U (en) * | 2014-07-31 | 2015-01-07 | 江门亿都电子科技有限公司 | A kind of Transparence Display LCD without polaroid |
| CN108663866A (en) * | 2017-03-30 | 2018-10-16 | 江苏和成显示科技有限公司 | A kind of light modulating device including guest-host liquid crystal composition |
-
2021
- 2021-07-27 CN CN202110847874.0A patent/CN113608389A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204086744U (en) * | 2014-07-31 | 2015-01-07 | 江门亿都电子科技有限公司 | A kind of Transparence Display LCD without polaroid |
| CN108663866A (en) * | 2017-03-30 | 2018-10-16 | 江苏和成显示科技有限公司 | A kind of light modulating device including guest-host liquid crystal composition |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |