CN115350891A - Backlight display method and device - Google Patents

Backlight display method and device Download PDF

Info

Publication number
CN115350891A
CN115350891A CN202210883916.0A CN202210883916A CN115350891A CN 115350891 A CN115350891 A CN 115350891A CN 202210883916 A CN202210883916 A CN 202210883916A CN 115350891 A CN115350891 A CN 115350891A
Authority
CN
China
Prior art keywords
backlight
paint
primer
diluent
curing agent
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
Application number
CN202210883916.0A
Other languages
Chinese (zh)
Inventor
王泽中
李国超
郑其敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Changfeng Aviation Electronics Co Ltd
Original Assignee
Suzhou Changfeng Aviation Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Changfeng Aviation Electronics Co Ltd filed Critical Suzhou Changfeng Aviation Electronics Co Ltd
Priority to CN202210883916.0A priority Critical patent/CN115350891A/en
Priority to PCT/CN2022/108282 priority patent/WO2024020865A1/en
Publication of CN115350891A publication Critical patent/CN115350891A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • 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
    • 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
    • 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
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2503/00—Polyurethanes

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention provides a backlight display method, which comprises the steps of spraying paint on a backlight reflecting surface of a display module, wherein the paint spraying comprises the following steps: spraying a primer on the surface of the back light reflecting surface, wherein the primer comprises a first paint; drying the primer at high temperature; spraying a finish paint on the surface of the primer, and drying, wherein the finish paint comprises a second paint; the first paint is made of a material selected according to the second paint and/or the material of the backlight reflecting surface; the backlight reflecting surface at least comprises an inner surface capable of reflecting in the display module. The invention can avoid the problems caused by the reflecting film and the laminating process thereof and has better reflecting performance.

Description

Backlight display method and device
Technical Field
The present invention relates to a backlight display technology, and more particularly, to a backlight display technology for a liquid crystal display module.
Background
Currently, two types of backlight are mainly used for liquid crystal display modules, such as LCD liquid crystal display panels, i.e., a side backlight and a bottom backlight. No matter the backlight form of side backlight or bottom backlight is adopted, the display module needs a method which can enable the backlight light source to be as uniform as possible and can reduce the absorption of the structural member to the backlight source, thereby improving the display quality and the light effect. Based on this, as shown in fig. 1 and fig. 2, for two types of backlight display modules, in the prior art, a reflective film is attached to a reflective surface of a backlight cavity to achieve the aforementioned purpose.
Further, as shown in fig. 2, for the lcd module adopting the bottom backlight mode, the attaching region of the reflective film at least includes four side surfaces and a bottom surface (i.e. a surface where the backlight light source is located) in the backlight cavity. Because the reflecting film needs to avoid a backlight light source, the attaching area is irregular and discontinuous, and no matter a manual attaching mode or a jig attaching mode is adopted, the traditional attaching mode with the back adhesive has the inevitable problems caused by the attaching process, such as the attaching of the reflecting film is not tight or can not be completely attached, or the local metal matrix of the display module is not covered and exposed, and the like, and on one hand, the problems can cause the poor light mixing effect of the backlight and further cause the display quality of the liquid crystal display module to have problems; on the other hand, the exposure of the local metal substrate of the display module can absorb a large amount of backlight light source, so that the temperature of the display module is increased due to the conversion of light energy into heat energy, and the luminous efficiency of the display module is further reduced. Similarly, the liquid crystal display module using the side backlight type also has a similar problem due to the attaching process itself.
In addition, besides the backlight cavity structure exemplarily shown in fig. 1 or fig. 2, the backlight cavity of a portion of the display module may also adopt other more complex design structures. In this case, in addition to the above-mentioned problems of the reflective film attaching process, the preparation process of the reflective film is complicated, the cost is high, and the maintenance is difficult, which are also common problems in the art, for example, the reflective film is most commonly customized by opening the mold, which results in high cost of the reflective film, and the mold needs to be continuously maintained at a later stage; if the jig is attached, the design, production and maintenance costs of the jig are increased.
The above problems exist in various types of backlight display modules, and are particularly serious for backlight cavities with complicated reflective surface structures. Accordingly, there is a need for a backlight display technology that can solve various technical problems caused by the reflective film and the bonding process thereof.
Disclosure of Invention
In order to solve the defects caused by the use of the reflective film in the display module, the invention provides a backlight display method and a device thereof, and aims to provide a backlight display technology which can avoid the use of the reflective film, thereby avoiding the problems caused by the reflective film and the bonding process thereof and having better reflective performance.
In order to achieve the purpose, the invention adopts a technical scheme that: a method of backlit display, the method comprising painting a backlit reflective surface of a display module, the painting comprising: spraying a primer on the surface of the back light reflecting surface, wherein the primer comprises a first paint; drying the primer at high temperature; spraying a finish paint on the surface of the primer, and drying, wherein the finish paint comprises a second paint; the first paint is made of a material selected according to the second paint and/or the material of the backlight reflecting surface; the backlight reflecting surface at least comprises an inner surface capable of reflecting in the display module.
In a preferred embodiment, the primer comprises: the first paint selected from acrylic polyurethane material, a first diluent and a first curing agent are mixed according to the proportion of 100 (12.5-14) to 17-19 to obtain the composition.
In a preferred embodiment, the first curing agent and the first diluent are selected according to the material of the first paint; wherein the first diluent is selected from polyurethane paint diluent, and the first curing agent is selected from epoxy resin high-temperature curing agent.
In a preferred embodiment, the topcoat comprises: the second paint with high brightness and white color and the second curing agent are mixed according to the proportion of (1.5-2.5) to 1, and then the second diluent with the volume ratio of 9-11 percent is added to be mixed to obtain the composition.
In a preferred embodiment, the second curing agent and the second diluent are selected according to the material of the second lacquer.
In a preferred embodiment, the high temperature drying comprises: and baking the primer at the temperature of 145-155 ℃ for 1.5-2 hours.
In a preferred embodiment, the drying comprises: and standing the finish paint at normal temperature for 5-10 minutes, and then baking at the temperature of 55-65 ℃ for 0.5-1 hour.
In a preferred embodiment, the thickness of the primer is 0.04 to 0.08 mm, and the thickness of the topcoat is 0.05 to 0.07 mm.
In order to achieve the above object, another technical solution adopted by the present invention is a backlight display device, which is prepared according to any one of the above backlight display methods.
Compared with the prior art, the invention has the advantages that: (1) The invention uses a paint spraying mode to replace the traditional reflection film attachment, overcomes the technical problems that the attachment of a reflection area is smooth and the surface of a structural part can not be completely covered, and simultaneously solves the problem that the attachment of the reflection film on one surface of a backlight source is difficult; (2) The backlight display technology has simple flow, high reliability of batch production and low cost; (3) The invention can be suitable for various backlight cavities with simple or complex structures; (4) The backlight display technology has better reflection performance, environmental adaptability and stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: an embodiment of the prior art provides a schematic structural diagram of a backlight cavity in the form of a side backlight.
FIG. 2: an embodiment of the prior art provides a schematic structural diagram of a backlight cavity in the form of a bottom backlight.
FIG. 3: the flow diagram of the backlight display method provided by one embodiment of the invention is shown.
FIG. 4: the embodiment of the invention provides a paint layer structure schematic diagram of a backlight reflecting surface formed by a backlight display method.
FIG. 5: the backlight display device provided by one embodiment of the invention is a schematic structural diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Herein, "first" and "second" are terms divided for the names of the components used herein in the same relation, and the present invention is not limited to the order described herein.
Herein, "at least one" means one, two, three, four, five, six, seven, eight or more.
Herein, "plurality" means two(s), three(s), four(s), five(s), six(s), seven(s), eight(s) or more(s).
The terms "comprising," "including," "containing," and "having" are used herein in an open-ended fashion and do not exclude additional unrecited elements, steps, or components. The expression "consisting of 8230excluding any element, step or component not specified. The term "consisting essentially of 8230A" means that the scope is limited to the specified elements, steps or components, plus optional elements, steps or components which do not materially affect the basic and novel characteristics of the claimed subject matter. It should be understood that the term "comprising" encompasses the terms "consisting essentially of 8230; and" consisting of 8230.
In this context, a "display module" or other similar term includes a device or apparatus having a display function with a backlight as a form of illumination, including but not limited to a liquid crystal display. It should be understood that as computer and electronic technologies develop, any display device or device having a backlight as a light source, regardless of changes or updates of model, size, structure, component units, materials, performance, etc., should be included in the scope of the display module.
As used herein, "backlight cavity" or other similar term includes any cavity or similar spatial structure used for backlighting of a display module. It should be understood that the present invention is an improvement to the portion of the backlight cavity having the reflective function (including but not limited to the reflective film), and the structure of the backlight cavity itself should not be taken as a limitation to the present invention; the mainstream backlight forms in the prior art include a side backlight and a bottom backlight, and with the development of computer technology and electronic technology, any structure for the backlight, no matter how the model, size, spatial structure, component unit, material, performance, etc. are changed or updated, should be included in the scope of the backlight cavity.
As used herein, "backlight reflective surface" or other similar term includes any reflective surface within the backlight cavity that is a backlight. It should be understood that, in general, the light path emitted by the backlight source (e.g., LED lamp) will fill the entire backlight cavity, and therefore, all the inner surfaces of the backlight cavity should be used as backlight reflective surfaces. However, considering that there may be a structure in which the backlight cavity is embedded with a backlight light source (as shown in fig. 2) or other complex structures, the present invention puts all the reflective portions into the scope of the backlight reflective surface regardless of the change or update of the model, size, structure, material, performance, etc.
Different from the method of adopting a reflecting film to attach a reflecting area for backlight in the prior art, the invention provides a backlight display method, which performs backlight by spraying paint on a backlight reflecting surface of a display module.
Example 1
As shown in fig. 3, an embodiment of the present invention provides a backlight display method, which includes painting a backlight reflective surface of a display module, where the backlight reflective surface includes at least an inner surface of a backlight cavity where reflection can occur. The method specifically comprises the following steps.
Step 1, spraying primer on the surface of the backlight reflecting surface。
In the step, the back light reflecting surface can be cleaned by using oil removing and dirt removing agents such as alcohol and the like so as to ensure that the surface of the back light reflecting surface is clean and has no impurities. Secondly, spraying a primer on the surface of the clean backlight reflecting surface, wherein the primer has the characteristics of high bonding force, corrosion resistance, aging resistance and the like, can be firmly bonded with the inner surface of the backlight cavity and the finish, and ensures the stability of the backlight display device in different environments.
Further, the primer may be selected depending on the base material of the back light reflecting surface, the material of the top coat, and the like. In this embodiment, the primer includes: the first paint selected from acrylic polyurethane material, a first diluent and a first curing agent are mixed according to the proportion of 100 (12.5-14) to 17-19 to obtain a composition; wherein the first diluent and the first curing agent are selected to have the highest suitability according to the material of the first paint. In this embodiment, the first diluent is selected from polyurethane paint diluents and the first curing agent is selected from epoxy resin high temperature curing agents. In an alternative embodiment, the primer has a thickness of 0.04 to 0.08 mm.
Step 2, drying the primer at high temperature。
For the primer sprayed in step 1, a high temperature drying procedure is required. Specifically, the high-temperature drying includes: the surface sprayed with the primer is baked for 1.5 to 2 hours at the temperature of 145 to 155 ℃.
In this step, the primer sprayed in step 1 will gradually dry and form, and form a rough surface for the finish to adhere to.
Step 3, spraying finish paint on the surface of the primer, and drying。
And spraying a finishing coat on the surface of the dried and formed primer, and drying. Specifically, after finishing the spraying process of the finish paint, standing the surface of the finish paint at normal temperature for 5-10 minutes, and then baking at 55-65 ℃ for 0.5-1 hour. After the step, the surface sprayed with the finish paint is dry and bright.
Furthermore, the material and color of the finish paint can be selected according to performance parameters such as reflectivity, reflected light color cast, environmental adaptability and the like. The color of the finish paint can be selected from high-brightness white paint, the reflection effect of the color is good, and the color is matched with a backlight source to mix light, so that the luminous efficiency of the backlight source can be effectively improved. In this embodiment, the top coat includes: the second paint with high brightness and white color and a second curing agent are mixed according to the proportion of (1.5-2.5) to 1, and then a second diluent with the volume ratio of 9-11 percent is added to be mixed to obtain a composition; wherein the second diluent and the second curing agent are selected from materials with the highest suitability according to the materials of the second paint. In this embodiment, the second lacquer is selected from the P420 series, the second diluent is selected from any one or more of the P850 series of diluents, and the second curing agent is selected from any one or more of the P210 curing agents. In an alternative embodiment, the thickness of the topcoat is 0.05 to 0.07 millimeters.
As shown in fig. 4, a "primer + finish" structure is formed on the back light reflection surface in the above steps 1-3, wherein the primer increases the bonding force between the paint layer and the back light reflection surface (including metal materials or other materials), and the "primer + finish" structure has stronger environmental adaptability, and can ensure the stability of the paint layer in environments of high temperature, high/low pressure, high humidity, vibration, etc., so that the paint layer is not easy to foam or fall off. Meanwhile, the whole thickness of the paint layer of the primer and the finish paint is only about 0.09-0.15 mm, and compared with a reflecting film, the reflecting film has smaller volume and weight.
Example 2
To better illustrate the technical effects of the present invention, this example selects a technical solution in example 1 as a sample example to compare with a comparative example in which a reflective film is used as a backlight.
Sample example
The sample example of the present embodiment uses a flat-surfaced aluminum plate as the backlight reflection surface, and processes the aluminum plate according to the backlight display method disclosed in embodiment 1, as follows.
Uniformly mixing a first paint (selected from Tianjin lighthouse brand) with the model of TB06-9, a polyurethane paint diluent with the model of X-10 and an epoxy resin high-temperature curing agent according to a ratio of 100.6; the spray coating was carried out according to the method in example 1 and high-temperature drying was carried out by baking in a high-temperature oven at 150 ℃ for 1.5 hours.
Mixing a second paint (selected from PPG brand) with the model of P420 series and the highlight color with a curing agent (selected from PPG brand) with the model of P210-938 according to the proportion of 2; the coating was performed according to the method of example 1, and left to stand at normal temperature for 5min, and then baked in a high temperature oven at 60 ℃ for 0.5 hour.
Comparative example
In the comparative example of the present example, an aluminum plate having the same specification as that of the sample example was used as a backlight reflection surface, and the reflection film was manually bonded. Wherein the reflective film is selected from Dongli brand 188.225E6SR.
It should be understood that, as mentioned above, in the actual production process, the attaching process of the reflective film itself has many technical problems that are difficult to avoid, such as the inability to cover all the reflective regions; because the test parameters of the problems cannot be quantified, the present embodiment does not test all possible problems in the prior art.
Technical test and results
The above examples and comparative examples were tested and compared for technical performance and environmental suitability, wherein one or more of them could be made in the same manner and materials as described above, depending on the test requirements of the comparative example. The results and descriptions of the test comparison with respect to the technical properties are shown in the following table 1.
Table 1 comparison table of technical performance test results
Figure BDA0003765239490000091
Description of the invention:
a) The comparison tests of reflectivity, reflectivity uniformity and product light-emitting consistency are carried out according to the standard with the standard number of SAE ARP 4260B-2014 and the name of photometric measurement and colorimetric measurement procedure for airborne electronic flat panel displays.
The results and descriptions of the environmental suitability test are shown in table 2 below.
Table 2 environmental suitability test result comparison table
Figure BDA0003765239490000101
Description of the invention:
a) The comparative tests for vibration and shock were performed according to the standard No. GJB 150A-2009, entitled "method for testing military equipment laboratory environment".
b) The comparative experiments of high and low temperature and high humidity were performed according to the standard with the standard number RTCADO-160G and the name "airborne equipment environmental conditions and test procedures".
Example 3
As shown in fig. 5, an embodiment of the present invention provides a schematic structural diagram of a backlight display device by taking a backlight cavity in a bottom backlight manner as an example.
Compared with the backlight cavity in the side backlight mode (the reflection area is continuous and complete), the light source and the backlight reflection surface of the backlight cavity in the bottom backlight mode are on the same side, and therefore the backlight reflection surface of the backlight cavity in the bottom backlight mode may be discontinuous and incomplete, as shown in fig. 5, the backlight reflection surface of the backlight cavity in this embodiment is formed at intervals.
Since this embodiment takes the form of a backlight, its backlight reflective surface includes the non-light source area at the bottom of the backlight cavity, and 4 sides of the backlight cavity (fig. 5 only shows 2 sides). In other embodiments (e.g., side backlights or other forms of backlights), the size and shape of the backlight reflecting surface may vary, but should not be construed as limiting the invention. This example prepares a backlight reflecting surface according to the method in example 1.
The backlight display method and the device thereof provided by the present invention are introduced in detail, and the principle and the implementation manner of the present invention are explained by applying specific examples, and the description of the implementation is only used to help understanding the core idea of the present invention; while the invention has been described with reference to specific embodiments and applications, it will be apparent to those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A method of backlit display, the method comprising painting a backlit reflective surface of a display module, the painting comprising:
spraying a primer on the surface of the back light reflecting surface, wherein the primer comprises a first paint;
drying the primer at high temperature;
spraying a finish paint on the surface of the primer, and drying, wherein the finish paint comprises a second paint;
the first paint is made of a material selected according to the second paint and/or the material of the backlight reflecting surface; the backlight reflecting surface at least comprises an inner surface capable of reflecting in the display module.
2. The method of claim 1, wherein the primer comprises: the first paint selected from acrylic polyurethane materials is mixed with a first diluent and a first curing agent according to the proportion of 100 (12.5-14) to 17-19 to obtain the composition.
3. The method of claim 2, wherein the first curing agent and the first diluent are selected according to the material of the first paint; wherein the first diluent is selected from polyurethane paint diluent, and the first curing agent is selected from epoxy resin high-temperature curing agent.
4. The method of claim 1, wherein the topcoat comprises: the second paint with high brightness and white color and the second curing agent are mixed according to the proportion of (1.5-2.5) to 1, and then the second diluent with the volume ratio of 9-11 percent is added to be mixed to obtain the composition.
5. The method of claim 4, wherein the second curing agent and the second diluent are selected according to the material of the second paint.
6. The method of any one of claims 1-5, wherein the high temperature drying comprises: and baking the primer at the temperature of 145-155 ℃ for 1.5-2 hours.
7. The method of any one of claims 1-5, wherein the drying comprises: and standing the finish paint at normal temperature for 5-10 minutes, and then baking at the temperature of 55-65 ℃ for 0.5-1 hour.
8. A method according to any of claims 1-5, characterized in that the thickness of the primer is 0.04-0.08 mm and the thickness of the top coat is 0.05-0.07 mm.
9. A backlight display device, characterized in that it is prepared according to the backlight display method of any one of claims 1-8.
CN202210883916.0A 2022-07-26 2022-07-26 Backlight display method and device Pending CN115350891A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210883916.0A CN115350891A (en) 2022-07-26 2022-07-26 Backlight display method and device
PCT/CN2022/108282 WO2024020865A1 (en) 2022-07-26 2022-07-27 Backlight dislplay method and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210883916.0A CN115350891A (en) 2022-07-26 2022-07-26 Backlight display method and device

Publications (1)

Publication Number Publication Date
CN115350891A true CN115350891A (en) 2022-11-18

Family

ID=84031788

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210883916.0A Pending CN115350891A (en) 2022-07-26 2022-07-26 Backlight display method and device

Country Status (2)

Country Link
CN (1) CN115350891A (en)
WO (1) WO2024020865A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172735A (en) * 2000-12-06 2002-06-18 Kansai Paint Co Ltd Highly diffusing reflective coated metal panel
CN101910921A (en) * 2007-12-20 2010-12-08 3M创新有限公司 Backlight reflectors with prism structure
CN102767762A (en) * 2012-07-27 2012-11-07 深圳市华星光电技术有限公司 Backlight module
CN108535912A (en) * 2017-03-03 2018-09-14 苹果公司 Display with direct-type backlight unit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003242813A (en) * 2002-02-20 2003-08-29 Ohtsu Tire & Rubber Co Ltd :The Vertical back light and light source unit
CN101378638B (en) * 2007-08-31 2012-05-16 深圳富泰宏精密工业有限公司 Metal case and manufacturing method thereof
CN205374940U (en) * 2016-01-09 2016-07-06 中新科技集团股份有限公司 Reflection postnotum
CN206563210U (en) * 2016-12-26 2017-10-17 深圳暴风统帅科技有限公司 A kind of backlight module and side entering type television set
CN206684433U (en) * 2017-03-23 2017-11-28 合肥惠科金扬科技有限公司 Module backboard and backlight module
CN207833187U (en) * 2018-03-02 2018-09-07 深圳创维－Rgb电子有限公司 A kind of backlight module and liquid crystal display
CN208940095U (en) * 2018-08-28 2019-06-04 惠州铭薪电子有限公司 Television backboard
CN113555239A (en) * 2021-07-16 2021-10-26 浙江摩根智能技术有限公司 Manufacturing method of panel switch
CN114280843A (en) * 2021-12-23 2022-04-05 武汉华星光电技术有限公司 Backlight module and display module

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172735A (en) * 2000-12-06 2002-06-18 Kansai Paint Co Ltd Highly diffusing reflective coated metal panel
CN101910921A (en) * 2007-12-20 2010-12-08 3M创新有限公司 Backlight reflectors with prism structure
CN102767762A (en) * 2012-07-27 2012-11-07 深圳市华星光电技术有限公司 Backlight module
CN108535912A (en) * 2017-03-03 2018-09-14 苹果公司 Display with direct-type backlight unit

Also Published As

Publication number Publication date
WO2024020865A1 (en) 2024-02-01

Similar Documents

Publication Publication Date Title
KR100799283B1 (en) Diffusing layer and method of using the same
CN1836019A (en) Double-sided pressure-sensitive adhesive sheet
CN104303322A (en) Silicone coated light-emitting diode
CN111929937B (en) Ultrathin display device and manufacturing method
US8184230B2 (en) High efficiency backlight assembly for flat panel display assembly and method for the manufacture thereof
CN110017895B (en) Light source monitoring system
CN104375226A (en) Diffusion type brightened reflecting film and backlight device
CN101979914A (en) Optical diffusion film and backlight module using same
CN104006354A (en) Fluorescent film applied to backlight module and preparation method thereof
CN1351266A (en) Light guide plate and manufacture thereof, plane luminating device and liquid crystal display device
CN106908880B (en) A kind of reflectance coating and preparation method thereof that diffusing reflection is high
CN110346971A (en) A kind of backlight module and display device
CN115350891A (en) Backlight display method and device
CN207833187U (en) A kind of backlight module and liquid crystal display
CN2375978Y (en) Background light source device
CN109975900B (en) Reflecting film with heat-conducting coating and preparation method and application thereof
CN108761591B (en) Coating type reflecting film for side-entry backlight module
CN100370282C (en) Light guide board manufacturing method
CN110908190A (en) Direct type backlight module, direct type backlight module manufacturing method and display
CN106048526B (en) Zinc nitride film, the preparation method of touch screen cover board and film, application
CN115487982B (en) Manufacturing method of hydrophobic film plating optical glass paint layer
CN109307907A (en) The preparation method of anti-reflection coating and backlight module with the anti-reflection coating
KR20150010895A (en) Functional reflection sheet for liquid crystalline display
CN1547065A (en) Directly-down backlight assembly
CN111239873A (en) High-light-shading-property composite board and preparation method thereof

Legal Events

Date Code Title Description
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

Application publication date: 20221118