CN111965898A - Bistable liquid crystal display screen integrated with upper light source and preparation method thereof - Google Patents
Bistable liquid crystal display screen integrated with upper light source and preparation method thereof Download PDFInfo
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- CN111965898A CN111965898A CN202010932250.4A CN202010932250A CN111965898A CN 111965898 A CN111965898 A CN 111965898A CN 202010932250 A CN202010932250 A CN 202010932250A CN 111965898 A CN111965898 A CN 111965898A
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- light source
- liquid crystal
- glass substrate
- guide plate
- light
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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
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
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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
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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
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a bistable liquid crystal display screen integrated with an upper light source and a preparation method thereof, wherein the bistable liquid crystal display screen comprises a transparent upper glass substrate and a transparent lower glass substrate, a liquid crystal body is arranged between the upper glass substrate and the lower glass substrate, an opaque film is adhered on the lower glass substrate, an upper light source assembly is arranged on the upper glass substrate, the upper light source assembly is a transparent piece, the upper light source assembly is electrified and then shines to provide a light source for the liquid crystal body, the upper light source assembly comprises a transparent light guide plate, a driving module is arranged on one side of the light guide plate, and a plurality of LED point light sources connected with the driving module. The invention realizes the purpose that the liquid crystal display can normally display under different ambient light for the user to check.
Description
Technical Field
The invention belongs to the technical field of display screens, and particularly relates to a bistable liquid crystal display screen integrated with an upper light source and a preparation method thereof.
Background
In terms of display technology, bistable state is a state in which two different states, namely a bright state and a dark state, can be maintained continuously without applying a voltage in the same display CELL, and is therefore considered to be bistable. The application of this technique in display has several advantages, that is, the picture can be memorized without applying voltage, and the power consumption can be effectively reduced. Ideally, compared with the conventional liquid crystal display technology, the bistable display can save hundreds of times of power consumption. This state is well suited for display applications where frequent picture updates are not required.
The bistable liquid crystal display is popular among people due to the advantages of low power consumption, high contrast, ultra-wide viewing angle and the like, and is widely applied to electronic products such as electronic tags, electric meters and the like. The manufacturing of the bistable state liquid crystal display screen is similar to that of a TN type liquid crystal display screen, and a polaroid is not used, so that the display device is particularly suitable for the fields of electronic books, electronic curtains, commercial advertisements and the like.
The existing bistable-pressure liquid crystal display screen is generally a reflection type LCD, and the display is invisible in the dark environment at night, thereby bringing certain limitation on the use.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bistable liquid crystal display screen integrated with an upper light source and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
a bistable liquid crystal display screen integrated with an upper light source comprises a transparent upper glass substrate and a lower glass substrate, wherein a liquid crystal body is arranged between the upper glass substrate and the lower glass substrate, an opaque film is adhered on the lower glass substrate, an upper light source assembly is arranged on the upper glass substrate, the upper light source assembly is a transparent piece, and the upper light source assembly illuminates to provide a light source for the liquid crystal body after being electrified.
The upper light source component comprises a transparent light guide plate, a driving module is arranged on one side of the light guide plate, and a plurality of LED point light sources connected with the driving module are arranged on the light guide plate.
The light guide plate is provided with a plurality of micro-particle dispersed light-gathering points through laser processing.
And sealing glue layers are arranged on the peripheries of the upper glass substrate and the lower glass substrate.
The opaque film is made of PET material.
The micro-particle luminous points are uniformly distributed on the light guide plate.
A method for manufacturing a bistable liquid crystal display screen integrated with an upper light source is characterized by comprising the following steps:
preparing an upper light source assembly;
respectively sticking the opaque film and the liquid crystal on the lower glass substrate, then sticking the upper glass substrate on the liquid crystal, and sticking and connecting the upper glass substrate with the lower glass substrate;
the upper glass substrate is adhered with an upper light source component, and when the ambient light reaches a preset light brightness value, the upper light source component keeps a transparent state and does not shield the display of the liquid crystal; when the ambient light is lower than the preset light brightness value, the upper light source component is electrified to shine, and a light source is provided for the liquid crystal.
The upper light source component comprises a light guide plate, an LED point light source and a driving module are arranged on the light guide plate, the driving module is connected with the LED point light source, the LED point light source is controlled to shine after being electrified, a plurality of micro-particle dispersed light-gathering points are arranged on the light guide plate through laser processing, and light generated by shining the LED point light source is scattered and condensed by the micro-particle dispersed light-gathering points, so that the surface of the light guide plate uniformly shines.
The invention realizes the purpose that the liquid crystal display screen can normally display under different ambient light rays for a user to check, when the ambient light rays meet the brightness requirement, the upper light source component keeps a transparent state and cannot shield the normal display of the display screen, and when the ambient light rays are darker, the upper light source component is electrified and brightened to provide a light source for the display screen, thereby being convenient for the user to clearly check.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view showing the structure of a light source module according to the present invention.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1 and 2, a bistable liquid crystal display panel integrated with an upper light source comprises a transparent upper glass substrate 5 and a lower glass substrate 1, a liquid crystal 3 is arranged between the upper glass substrate 5 and the lower glass substrate 1, an opaque film 2 is adhered on the lower glass substrate 1, an upper light source assembly 4 is arranged on the upper glass substrate 5, the upper light source assembly is a transparent member, and the upper light source assembly illuminates to provide a light source for the liquid crystal after being electrified. The liquid crystal is a well-known structure, and will not be described in detail herein. The basic function of which is to be able to display the corresponding content.
The upper light source component comprises a transparent light guide plate, a driving module is arranged on one side of the light guide plate, a plurality of LED point light sources connected with the driving module are arranged on the light guide plate, the driving module is connected with a power supply, and the LED point light sources are controlled to shine, so that the light guide plate shines, and light source brightness is provided for the display screen.
The light guide plate has a plurality of microparticle dispersion spotlight point through laser beam machining, through evenly arranging microparticle dispersion spotlight point on the light guide plate, changes the LED pointolite into even area source, makes the light guide plate have better luminous environment, provides more even light source environment for the display screen.
And sealing glue layers are arranged around the upper glass substrate and the lower glass substrate, so that the overall sealing performance is improved.
The opaque film is made of a PET material, and the PET material is good in insulation, large in adhesive force, and good in high temperature resistance and solvent resistance.
The micro-particle luminous points are uniformly distributed on the light guide plate.
In addition, the invention also provides a preparation method of the bistable liquid crystal display screen integrated with the upper light source, which comprises the following steps:
an upper light source assembly is prepared.
And respectively adhering the opaque film and the liquid crystal on the lower glass substrate, and then adhering the upper glass substrate to the liquid crystal and adhering and connecting the upper glass substrate and the lower glass substrate. The liquid crystal is a main body display component of the display screen and is a known product.
The upper glass substrate is adhered with an upper light source component, and when the ambient light reaches a preset light brightness value, the upper light source component keeps a transparent state and does not shield the display of the liquid crystal; when the ambient light is lower than the preset light brightness value, the upper light source component is electrified to shine, and a light source is provided for the liquid crystal.
The upper light source component comprises a light guide plate, an LED point light source and a driving module are arranged on the light guide plate, the driving module is connected with the LED point light source, the LED point light source is controlled to shine after being electrified, a plurality of micro-particle dispersed light-gathering points are arranged on the light guide plate through laser processing, and light generated by shining the LED point light source is scattered and condensed by the micro-particle dispersed light-gathering points, so that the surface of the light guide plate uniformly shines.
The specific mounting position of the upper light source unit may be on the inner surface of the upper glass substrate or may be bonded to the outer surface of the upper glass substrate.
When the LED display screen is used in the daytime, the ambient light is good, the upper light source component does not need to be electrified and lightened, and the display screen can clearly view the display content through direct display. When the light source is powered on and shines at night or when the ambient light is insufficient, the upper light source component provides sufficient light source for the display screen, and the display content can be normally viewed.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements, and the like can be made in the technical solutions of the foregoing embodiments or in some of the technical features of the foregoing embodiments, but those modifications, equivalents, improvements, and the like are all within the spirit and principle of the present invention.
Claims (8)
1. The bistable liquid crystal display screen is characterized by comprising a transparent upper glass substrate and a transparent lower glass substrate, wherein a liquid crystal body is arranged between the upper glass substrate and the lower glass substrate, an opaque film is adhered on the lower glass substrate, an upper light source assembly is arranged on the upper glass substrate, the upper light source assembly is a transparent piece, and the upper light source assembly illuminates to provide a light source for the liquid crystal body after being electrified.
2. The bistable liquid crystal display panel with integrated upper light source of claim 1, wherein said upper light source assembly comprises a transparent light guide plate, a driving module is disposed on one side of the light guide plate, and a plurality of LED point light sources are disposed on the light guide plate and connected to the driving module.
3. The bistable liquid crystal display panel with integrated upper light source of claim 2, wherein said light guide plate is laser processed with a plurality of micro-particle dispersed light spots.
4. The bistable liquid crystal display panel with integrated upper light source of claim 3, wherein said upper glass substrate and said lower glass substrate are provided with sealant layers around their peripheries.
5. The bistable liquid crystal display panel with integrated upper light source of claim 4, wherein said opaque film is a film made of PET material.
6. The bistable liquid crystal display panel with integrated upper light source of claim 5, wherein said light emitting spots of microparticles are uniformly arranged on the light guide plate.
7. A method of manufacturing a bistable liquid crystal display panel having an integrated upper light source according to any one of claims 1 to 6, comprising the steps of:
preparing an upper light source assembly;
respectively sticking the opaque film and the liquid crystal on the lower glass substrate, then sticking the upper glass substrate on the liquid crystal, and sticking and connecting the upper glass substrate with the lower glass substrate;
the upper glass substrate is adhered with an upper light source component, and when the ambient light reaches a preset light brightness value, the upper light source component keeps a transparent state and does not shield the display of the liquid crystal; when the ambient light is lower than the preset light brightness value, the upper light source component is electrified to shine, and a light source is provided for the liquid crystal.
8. The method of claim 7, wherein the upper light source assembly comprises a light guide plate, the light guide plate is provided with an LED point light source and a driving module, the driving module is connected to the LED point light source and controls the LED point light source to illuminate after being powered on, the light guide plate is provided with a plurality of microparticle dispersed light-collecting points through laser processing, and light generated by illumination of the LED point light source is dispersed and collected by the microparticle dispersed light-collecting points, so that the surface of the light guide plate uniformly illuminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932250.4A CN111965898A (en) | 2020-09-08 | 2020-09-08 | Bistable liquid crystal display screen integrated with upper light source and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932250.4A CN111965898A (en) | 2020-09-08 | 2020-09-08 | Bistable liquid crystal display screen integrated with upper light source and preparation method thereof |
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| CN111965898A true CN111965898A (en) | 2020-11-20 |
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| CN202010932250.4A Pending CN111965898A (en) | 2020-09-08 | 2020-09-08 | Bistable liquid crystal display screen integrated with upper light source and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278069Y (en) * | 2008-08-27 | 2009-07-22 | 深圳晶华显示器材有限公司 | Bi-stable liquid crystal display screen |
| CN201732237U (en) * | 2010-06-03 | 2011-02-02 | 深圳市帝晶实业有限公司 | Bistable LCD |
| US20150346553A1 (en) * | 2014-05-27 | 2015-12-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display device |
| CN206991738U (en) * | 2017-07-25 | 2018-02-09 | 溢洋光电（深圳）有限公司 | A kind of bistable liquid crystal display and display device |
| CN207181888U (en) * | 2017-08-09 | 2018-04-03 | 上海达九光电技术有限公司 | A kind of superhigh-brightness liquid crystal display screen construction improves |
| CN210835527U (en) * | 2019-12-11 | 2020-06-23 | 东莞而基毕电子科技有限公司 | Wide-viewing-angle LCD (liquid Crystal display) module |
-
2020
- 2020-09-08 CN CN202010932250.4A patent/CN111965898A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278069Y (en) * | 2008-08-27 | 2009-07-22 | 深圳晶华显示器材有限公司 | Bi-stable liquid crystal display screen |
| CN201732237U (en) * | 2010-06-03 | 2011-02-02 | 深圳市帝晶实业有限公司 | Bistable LCD |
| US20150346553A1 (en) * | 2014-05-27 | 2015-12-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display device |
| CN206991738U (en) * | 2017-07-25 | 2018-02-09 | 溢洋光电（深圳）有限公司 | A kind of bistable liquid crystal display and display device |
| CN207181888U (en) * | 2017-08-09 | 2018-04-03 | 上海达九光电技术有限公司 | A kind of superhigh-brightness liquid crystal display screen construction improves |
| CN210835527U (en) * | 2019-12-11 | 2020-06-23 | 东莞而基毕电子科技有限公司 | Wide-viewing-angle LCD (liquid Crystal display) module |
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Application publication date: 20201120 |