CN112198689A - Low-temperature heating and transparent thermal compensation reinforced liquid crystal display and manufacturing method thereof - Google Patents
Low-temperature heating and transparent thermal compensation reinforced liquid crystal display and manufacturing method thereof Download PDFInfo
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- CN112198689A CN112198689A CN202011078586.5A CN202011078586A CN112198689A CN 112198689 A CN112198689 A CN 112198689A CN 202011078586 A CN202011078586 A CN 202011078586A CN 112198689 A CN112198689 A CN 112198689A
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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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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Abstract
The invention particularly discloses a low-temperature heating and transparent thermal compensation reinforced liquid crystal display and a manufacturing method thereof. The invention adopts double-sided shadow-eliminating ITO glass to manufacture the heating compensation glass, overcomes the problems of poor temperature uniformity of common heating glass and abnormal low-temperature display of the liquid crystal display, can utilize the thermal compensation layer to carry out heating compensation on any area in the display area of the liquid crystal display, does not influence the display effect of the display, has excellent heating uniformity, and can be integrated with the heating glass without adding other devices, thereby being not limited by the structural installation space and greatly saving the cost.
Description
Technical Field
The invention relates to the technical field of liquid crystal displays, in particular to a low-temperature heating and transparent thermal compensation reinforced liquid crystal display and a manufacturing method thereof.
Background
The reinforced liquid crystal display adopts a liquid crystal screen as a display device, and reinforces and modifies the commercial or industrial liquid crystal screen, so that the working temperature range of the commercial or industrial liquid crystal screen is expanded from minus 10 ℃ to plus 60 ℃ to minus 40 ℃ to plus 70 ℃ or minus 55 ℃ to plus 80 ℃.
When the commercial or industrial liquid crystal screen works at a low temperature lower than-10 ℃, liquid crystal inside the liquid crystal panel becomes viscous or changes into a solid state, so that the response of the liquid crystal screen is slow or the liquid crystal screen cannot display. The method for heating the liquid crystal display to realize low-temperature display generally comprises the steps of attaching heating glass or a heating film to the front or the back of a liquid crystal panel, and heating the liquid crystal panel to achieve the purpose of low-temperature display.
The heating glass or the heating film is made of glass or a film with a conducting layer, the commonly used conducting layer is provided with an ITO film layer, two conducting electrodes are pasted on the surface of the conducting layer through conducting silver paste, a structure similar to a resistor is adopted, direct current voltage is applied between the two conducting electrodes, and current flows on the surface of the conducting layer to form heating glass or the heating film with a heating surface. The surface temperature difference of the heating glass or the heating film is measured, generally the surface temperature difference can be made within 6 ℃, and the surface temperature difference is small.
The heating glass or the heating film is completely attached to the liquid crystal screen and is placed in the aluminum metal face frame to manufacture the reinforced liquid crystal display, the edge of the liquid crystal panel is fast in heat dissipation due to the fact that the edge of the liquid crystal panel is in contact with the metal face frame, the temperature difference between the edge temperature of the liquid crystal panel and the middle area can be more than 20 ℃, when the liquid crystal display adopting the heating glass works at the low temperature of 40 ℃ below zero or 55 ℃ below zero, normal display of the middle area can be formed due to temperature difference, the edge annular area is not displayed, or four corners are whitened, and under a black picture, the phenomenon that the edge annular area or four corners are whitened is particularly obvious.
In order to solve the problem of abnormal display caused by uneven heating of the low-temperature display of the liquid crystal display, a method of heating the edge of the liquid crystal display is adopted, and a heating device is added at the edge of the liquid crystal display and the structural member, and the method mainly has the following two limitations:
1) the heating compensation device can only be installed outside the visible area of the liquid crystal panel, and the low-temperature area cannot be directly heated and compensated.
2) The heating compensation device needs to increase the installation space, and cannot be used in a liquid crystal display with a compact structure size.
In view of this, how to design a low temperature heating and transparent thermal compensation reinforced liquid crystal display and a manufacturing method thereof are technical problems to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a reinforced liquid crystal display of a low-temperature heating and transparent thermal compensation element and a manufacturing method thereof.
In order to solve the technical problems, the invention provides a low-temperature heating and transparent thermal compensation liquid crystal display, which comprises a metal surface frame, and a conductive gasket, ITO (indium tin oxide) shielding glass, heating compensation glass and a liquid crystal screen which are arranged in the metal surface frame, wherein the heating compensation glass comprises a surface heating layer which is attached and connected with the ITO shielding glass and a thermal compensation layer which is attached and connected with the liquid crystal screen, and one surface of the ITO shielding glass, which is far away from the surface heating layer, is fixedly connected with the metal surface frame through the conductive gasket.
Preferably, the thermal compensation device further comprises a first conductive silver paste and a thermal compensation layer electrode, the surface of the thermal compensation layer is divided into two areas, namely an edge annular area and a middle rectangular area, the edge annular area is composed of two semi-annular areas, small squares are arranged at four corners of the middle rectangular area, the first conductive silver paste is arranged on the surface of the thermal compensation layer and located at scribe lines connected with the two semi-annular areas, and the thermal compensation layer electrode is pasted on the first conductive silver paste and can be connected with an external power supply for heating.
Preferably, still include second electrically conductive silver thick liquid and face heating layer electrode, the edge of face heating layer is located to second electrically conductive silver thick liquid, and face heating layer electrode pastes on second electrically conductive silver thick liquid and can be connected with external power supply and be used for the heating.
A method for manufacturing a low-temperature heating and transparent thermal compensation reinforced liquid crystal display comprises the following steps:
s1, manufacturing heating compensation glass by using double-sided shadow eliminating ITO glass;
s2, attaching the heating compensation glass in the step S1 to ITO shielding glass to obtain shielding heating compensation glass;
and S3, attaching the shielding heating compensation glass in the step S2 to the liquid crystal screen, and filling the attached shielding heating compensation glass into a metal face frame to obtain the low-temperature heating and transparent thermal compensation reinforced liquid crystal display.
Preferably, the specific implementation manner of step S1 includes:
s11, cutting and edging the double-sided shadow eliminating ITO glass, and setting one surface of the processed double-sided shadow eliminating ITO glass as a thermal compensation surface and the other surface as a surface heating surface;
s12, calculating the theoretical heating power of the liquid crystal display, and determining the size of the thermal compensation area according to the calculated theoretical heating power;
s13, carrying out circuit drawing on the thermal compensation surface by using an etching paste etching process so as to divide the ITO layer of the thermal compensation surface into an edge annular region and a middle rectangular region, wherein the edge annular region consists of two semi-annular regions;
s14, respectively arranging a small square at the four corners of the middle rectangular area to reduce the width of the conductive area at the four corners, thereby forming a thermal compensation pattern of a thermal compensation surface;
s15, manufacturing a corresponding screen printing screen plate according to the thermal compensation pattern, printing etching paste on a thermal compensation surface, and then putting the screen printing screen plate into a high-temperature box for baking;
s16, taking out the baked double-sided shadow eliminating ITO glass, placing the glass to room temperature, and cleaning the surface of the glass;
s17, printing first conductive silver paste at the scribed lines of the two semi-annular areas of the thermal compensation surface, and then pasting thermal compensation layer electrodes on the surface of the first conductive silver paste and then curing;
and S18, printing second conductive silver paste on the glass edge of the heating surface of the double-sided shadow eliminating ITO glass surface, and then pasting a thermal compensation layer electrode on the surface of the second conductive silver paste and curing to obtain the heating compensation glass.
Preferably, the theoretical heating power of the liquid crystal display device in step S12 can be expressed by the following formula:
W＝ηW0 (1)
in the formula (1), W represents the total heating power, eta represents the adjustment coefficient, and W0Representing the theoretical heating power.
Preferably, the side length of the small square in the step S13 is 5mm-15 mm.
Preferably, the specific implementation manner of step S2 includes:
s21, firstly, cleaning one surface of the ITO shielding glass, which is attached to the surface heating layer of the heating compensation glass, and the surface heating layer of the heating compensation glass;
s22, coating UV glue on the surface heating layer of the heating compensation glass, contacting the ITO shielding glass with the surface, which is attached to the surface heating layer of the heating compensation glass, of the ITO shielding glass with the UV glue on the surface heating layer, and exhausting air;
s23, checking whether bubbles and impurities exist, if so, going to S24, and if not, going to S25;
s24, removing the UV glue on the surface heating layer, cleaning the surface of the heating compensation glass, and entering the step S21;
and S25, respectively positioning and curing by using the UV point light source and the UV area light source, thereby obtaining the shielding heating compensation glass.
Preferably, the specific implementation manner of step S3 includes:
s31, cleaning the thermal compensation layer of the liquid crystal screen panel and the shielding heating compensation glass;
s32, coating UV glue on the surface of the liquid crystal screen panel, contacting the thermal compensation layer of the shielding heating compensation glass with the UV glue on the liquid crystal screen panel, and exhausting air;
s33, checking whether bubbles and impurities exist, if so, going to S34, and if not, going to S35;
s34, removing the UV glue on the surface of the liquid crystal panel and cleaning the surface of the liquid crystal panel, and entering the step S31;
s35, respectively positioning and curing by using a UV point light source and a UV area light source, and finally, putting the module in which the liquid crystal screen and the shielding heating compensation glass are completely attached into a metal surface frame to obtain the heating and thermal compensation reinforced liquid crystal display.
Preferably, in step S35, the module is connected to the metal frame through a conductive gasket in a shielding manner, and the edge of the module is fixed to the metal frame through dispensing.
Compared with the prior art, the heating compensation glass comprising the surface heating layer and the thermal compensation layer is manufactured by adopting the double-sided shadow eliminating ITO glass, so that the problems of poor temperature uniformity of common heating glass and abnormal low-temperature display of the liquid crystal display are solved, the thermal compensation layer can be used for heating compensation of any area in a display area of the liquid crystal display, the display effect of the display cannot be influenced, the heating uniformity is excellent, other devices do not need to be added, and the heating compensation glass can be integrated with the heating glass into a whole, so that the limitation of a structural installation space is avoided, and the cost is greatly saved.
Drawings
FIG. 1 is a schematic view of a low temperature heating and transparent thermally compensated reinforced liquid crystal display of the present invention,
FIG. 2 is a schematic front view of the heat compensation glass of the present invention,
FIG. 3 is a schematic view of the back side of the heat-compensating glass of the present invention,
FIG. 4 is a flow chart of the manufacturing method of the low temperature heating and transparent thermal compensation reinforced liquid crystal display device of the present invention,
FIG. 5 is a flow chart of a method of making a heat-compensated glass of the present invention,
FIG. 6 is a flow chart of a method of making a shield heating compensation glass in accordance with the present invention,
FIG. 7 is a flow chart of the method for attaching the shielding heating compensation glass to the liquid crystal panel according to the present invention.
In the figure: 1. the liquid crystal display panel comprises a metal surface frame, 11 parts of a front frame, 12 parts of a middle frame, 13 parts of a rear cover, 2 parts of a conductive gasket, 3 parts of ITO shielding glass, 4 parts of heating compensation glass, 41 parts of a surface heating layer, 42 parts of a thermal compensation layer, 5 parts of a liquid crystal screen, 62 parts of a surface heating layer electrode, 72 parts of a thermal compensation layer electrode, 73 parts of an edge annular region, 74 parts of a middle rectangular region and 8 parts of a small square.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings.
It should be noted that, in the present invention, "first" and "second" only represent names of different components, and there is no sequence; meanwhile, taking fig. 2 as an example, the vertical paper surface is left to the left, and the vertical paper surface is right to the right.
As shown in fig. 1-3, a low temperature heating and transparent thermal compensation adds LCD, including metal covering frame 1 to and locate conductive liner 2, ITO shielding glass 3, heating compensation glass 4 and LCD screen 5 in the metal covering frame 1, heating compensation glass 4 includes the face zone of heating 41 of being connected with the laminating of ITO shielding glass 3 and the thermal compensation layer 42 of being connected with the laminating of LCD screen 5, and the one side that ITO shielding glass 3 keeps away from face zone of heating 41 is through conductive liner 2 and metal covering frame 1 fixed connection.
In the embodiment, the heating compensation glass 4 is made of double-sided shadow eliminating ITO glass, one ITO conductive layer is made into a surface heating layer 41 and is in full-fit connection with the ITO shielding glass 3, and the manufacturing process of the surface heating layer is the same as that of common heating glass; the ITO conductive layer on the other side is made into a thermal compensation layer 42 and is in full-fit connection with the liquid crystal display 5, the thermal compensation layer 42 adopts an etching process to etch line insulation to divide the ITO layer into an edge annular area and a middle rectangular area, the middle rectangular area is insulated and is not heated, the edge annular area is pasted with two electrodes made of conductive materials such as silver paste and the like for being connected with an external power supply, the size of the thermal compensation area is determined according to the low-temperature display whitening area, the line is etched at the position which is 20mm-40mm away from the visible area of the liquid crystal display for insulation, because the heating compensation glass 4 adopts shadow eliminating ITO glass, the etched line can not be perceived by naked eyes, the display effect of the liquid crystal display can not be influenced, the problems of poor temperature uniformity of common heating glass and abnormal low-temperature display of the liquid crystal display are solved, the thermal compensation layer 42 can be, not only can not influence the display effect of display, the heating homogeneity is splendid moreover, also need not to increase other devices simultaneously, can be integrated with heating glass integratively, consequently does not receive structure installation space's restriction, has practiced thrift the cost greatly.
In this embodiment, the metal face frame 1 includes a front frame 11, a middle frame 12 and a rear cover 13 which are fixedly connected with the ITO shielding glass through the conductive gasket 2 in a direct contact manner, the middle area of the front frame 11 is a hollow structure to avoid blocking the display of the liquid crystal screen 5, the middle frame 12 is used for connecting the front frame 11 and the rear cover 13, the connection mode can adopt a clamping or a threaded connection, and the rear cover 13 and the front frame 11 are fixedly connected through the middle frame 12 and then used for placing the structural components of the liquid crystal display in a closed space to prevent the dust and other impurities from affecting the service life of the structural components.
Wherein, still include first electrically conductive silver thick liquid and thermal compensation layer electrode 72, thermal compensation layer 42 surface includes marginal annular region 73 and middle rectangle region 74, and marginal annular region 73 comprises two semi-annular regions, all is equipped with little square 8 on four angles of middle rectangle region 74, and first electrically conductive silver thick liquid is located thermal compensation layer 42 surface and is located the reticle department that two semi-annular regions are connected, and thermal compensation layer electrode 72 pastes on first electrically conductive silver thick liquid and can be connected with external power supply and be used for the heating.
The heating plate comprises a surface heating layer 41, a second conductive silver paste and a surface heating layer electrode 62, wherein the second conductive silver paste is arranged at the edge of the surface heating layer 41, and the surface heating layer electrode 62 is pasted on the second conductive silver paste and can be connected with an external power supply for heating.
A method for manufacturing a low-temperature heating and transparent thermal compensation reinforced liquid crystal display comprises the following steps:
s1, manufacturing heating compensation glass 4 by using the double-sided shadow eliminating ITO glass 3;
s2, attaching the heating compensation glass 4 in the step S1 to the ITO shielding glass 3 to obtain shielding heating compensation glass;
and S3, attaching the shielding heating compensation glass in the step S2 to the liquid crystal screen 5, and filling the attached shielding heating compensation glass into the metal face frame 1 to obtain the reinforced liquid crystal display with low-temperature heating and transparent thermal compensation.
In the embodiment, firstly, the double-sided shadow eliminating ITO glass 3 is used for manufacturing the heating compensation glass 4, that is, one ITO conductive layer of one side of the double-sided shadow eliminating ITO glass 3 is manufactured into a surface heating layer 41 connected with the ITO shielding glass 3, the manufacturing process is the same as that of common heating glass, and the other ITO conductive layer is manufactured into a thermal compensation layer 42 connected with the liquid crystal screen 5; and then, the surface heating layer 41 of the heating compensation glass 4 is completely attached and connected with the non-coating surface of the ITO shielding glass 3 (namely, the surface of the ITO shielding glass 3 attached with the surface heating layer 41 of the heating compensation glass 4) to obtain the shielding heating compensation glass, finally, the thermal compensation layer 42 of the shielding heating compensation glass is completely attached and connected with the liquid crystal screen 5 to form a module, and the module is arranged in the metal surface frame 1, so that the low-temperature heating and transparent thermal compensation liquid crystal display can be obtained.
The manufacturing method of the heating compensation glass comprises the following steps:
s11, cutting and edging the double-sided shadow eliminating ITO glass, and setting one surface of the processed double-sided shadow eliminating ITO glass as a thermal compensation surface and the other surface as a surface heating surface;
s12, calculating theoretical heating power of the reinforced liquid crystal display, and determining the size of the thermal compensation area according to the calculated theoretical heating power, wherein the theoretical heating power of the reinforced liquid crystal display can be expressed by a formula as follows:
W＝ηW0 (1)
in the formula (1), W represents the total heating power, eta represents the adjustment coefficient, and W0Represents the theoretical heating power;
s13, performing circuit etching on the thermal compensation surface by using an etching paste etching process to divide the ITO layer of the thermal compensation surface into an edge annular region 73 and a middle rectangular region 74, which are formed by two half-annular regions, so as to form a thermal compensation pattern of the thermal compensation surface, wherein when performing the circuit etching, the minimum line width should satisfy that the insulation resistance between the edge annular region 73 (i.e. the two half-annular regions) and the middle rectangular region 74 is greater than 200M Ω;
s14, a small square 8 is disposed at each of the four corners of the middle rectangular region 74 to reduce the width of the conductive region at each of the four corners, thereby forming a thermal compensation pattern of the thermal compensation surface. Because the conductive width of four corners narrows, and then increased the resistance of ITO glass four corners, according to electric heating formula W ═ I2R shows that the power of the thermal compensation surface of the ITO glass at the four corners is increased, and the problem that the four corners of the reinforced liquid crystal display are whitened due to low temperature when the reinforced liquid crystal display works at low temperature can be effectively solved;
s15, manufacturing a corresponding screen printing screen plate according to the thermal compensation pattern, printing etching paste on a thermal compensation surface, and then baking in a high-temperature box, wherein the temperature in the high-temperature box is 150 ℃, and the baking time is half an hour, so that the effect of etching the ITO coating can be achieved;
s16, taking out the baked double-sided vanishing ITO glass, placing the double-sided vanishing ITO glass to room temperature, cleaning the surface of the double-sided vanishing ITO glass, and cleaning the surface of the double-sided vanishing ITO glass by ultrasonic waves;
s17, printing first conductive silver paste on the scribed lines of the two semi-annular regions of the thermal compensation surface, and then pasting copper foil electrodes on the surface of the first conductive silver paste for curing, in this embodiment, the first conductive silver paste includes two first conductive silver pastes disposed on the scribed lines of the two semi-annular regions to achieve the purpose of leading out positive and negative leads, the size of the first conductive silver paste is about 2.5 × 6mm, and the first conductive silver paste is cured at normal temperature or baked at high temperature of 150 ℃ for 0.5h according to the curing condition of the first conductive silver paste, and the two semi-annular regions are connected in parallel by the conductive electrodes corresponding to the two first conductive silver pastes, thereby completing the fabrication of the thermal compensation layer; it should be noted that the copper foil electrode can also be replaced by other thermal compensation layer electrodes;
s18, printing second conductive silver paste at the edge of the glass of the double-sided shadow eliminating ITO glass surface heating surface, and then pasting a copper foil electrode on the surface of the second conductive silver paste for solidification, wherein the second conductive silver paste comprises two second conductive silver pastes arranged at the edge of the glass of the surface heating layer 41 so as to achieve the purpose of leading out positive and negative electrode wires, as shown in figure 2, the second conductive silver pastes are arranged at the edges of the glass at the left side and the right side of the surface heating layer 41, and normal-temperature solidification or high-temperature baking at 150 ℃ is carried out for 0.5h according to the solidification condition of the second conductive silver paste, so that the heating compensation glass is obtained.
In this embodiment, the thermal compensation area is mainly determined by two aspects: firstly, the thermal compensation area is required to be extended to the display area of the display and contracted by 20-40 mm; ② the heating power of the thermal compensation area should be 20-30% of the area heating power. Divide into marginal annular region 73 (two semi-annular regions promptly) and middle rectangular region 74 through adopting the insulating ITO layer of etching process etching lines on the thermal compensation face, the insulating nothing of middle rectangular region 74 heats, and marginal annular region 73 utilizes conducting material such as first electrically conductive silver thick liquid and the electrically conductive silver thick liquid of second respectively to paste two conductive electrode and can be used to be connected with external power source, if: the conductive electrode welding copper foils of the surface heating layer 41 and the thermal compensation layer 42 are led out, external direct current power supplies are respectively connected to two ends of the conductive electrodes to heat the conductive electrodes, meanwhile, the surface heating layer 41 and the thermal compensation layer 42 can be separately and independently powered, and the heating compensation effect can be optimally matched by inputting different voltages. Because the heating compensation glass 4 adopts double-sided shadow eliminating ITO glass, etched lines cannot be perceived by naked eyes and the display effect of the liquid crystal display cannot be influenced, so that the heating compensation layer 41 can be utilized by the heating compensation device to heat and compensate any area in the display area of the liquid crystal display, the display effect of the display is not influenced, and the heating uniformity is excellent.
The specific implementation manner of step S2 includes:
s21, firstly, cleaning the surface of the ITO shielding glass 3, which is attached to the surface heating layer 41 of the heating compensation glass 4, and the surface heating layer 41 of the heating compensation glass 4;
s22, coating UV glue on the surface heating layer 41 of the heating compensation glass 4, contacting the ITO shielding glass 3 with the surface, which is attached to the surface heating layer 41 of the heating compensation glass 4, of the surface heating layer 41 and the UV glue on the surface heating layer 41, and exhausting air;
s23, checking whether bubbles and impurities exist, if so, going to S24, and if not, going to S25;
s24, removing the UV glue on the surface heating layer 41, cleaning the surface of the heating compensation glass 4, and then entering the step S21;
and S25, respectively positioning and curing by using the UV point light source and the UV area light source, thereby obtaining the shielding heating compensation glass.
The specific implementation manner of step S3 includes:
s31, cleaning the thermal compensation layer 42 of the liquid crystal screen panel and the shielding heating compensation glass;
s32, coating UV glue on the surface of the liquid crystal screen panel, contacting the thermal compensation layer 42 of the shielding heating compensation glass with the UV glue on the liquid crystal screen panel, and exhausting air;
s33, checking whether bubbles and impurities exist, if so, going to S34, and if not, going to S35;
s34, removing the UV glue on the surface of the liquid crystal panel, cleaning the surface of the liquid crystal panel, and then entering the step S21;
s35, respectively positioning and curing by using a UV point light source and a UV area light source, and finally, putting the module in which the liquid crystal screen 5 and the shielding heating compensation glass are completely attached into the metal face frame 1 to obtain the heating and heat compensation reinforced liquid crystal display.
In step S35, the module is connected to the metal frame 1 through the conductive pad 2 in a shielding manner, and the edge of the module is fixed to the metal frame 1 by dispensing. The connection stability and the insulativity between the module and the metal surface frame 1 are strongly ensured.
The reinforced liquid crystal display with low temperature heating and transparent thermal compensation and the manufacturing method thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. Low temperature heating and transparent thermal compensation add LCD, its characterized in that includes the metal covering frame to and locate conductive liner, ITO shielding glass, heating compensation glass and the LCD screen in the metal covering frame, heating compensation glass includes the face zone of heating of being connected with the laminating of ITO shielding glass and the thermal compensation layer of being connected with the laminating of LCD screen, and the one side that ITO shielding glass kept away from the face zone of heating is through conductive liner and metal covering frame fixed connection.
2. The liquid crystal display for low temperature heating and transparent thermal compensation according to claim 1, further comprising a first conductive silver paste and a thermal compensation layer electrode, wherein the surface of the thermal compensation layer comprises an edge annular region and a middle rectangular region, the edge annular region comprises two semi-annular regions, each of four corners of the middle rectangular region is provided with a small square, the first conductive silver paste is arranged on the surface of the thermal compensation layer and is located at a scribe line connecting the two semi-annular regions, and the thermal compensation layer electrode is adhered to the first conductive silver paste and can be connected with an external power supply for heating.
3. The reinforced liquid crystal display for low temperature heating and transparent thermal compensation of claim 1, further comprising a second conductive silver paste and a surface heating layer electrode, wherein the second conductive silver paste is disposed at the edge of the surface heating layer, and the surface heating layer electrode is adhered on the second conductive silver paste and can be connected to an external power supply for heating.
4. The manufacturing method of the reinforced liquid crystal display with low-temperature heating and transparent thermal compensation is characterized by comprising the following steps of:
s1, manufacturing heating compensation glass by using double-sided shadow eliminating ITO glass;
s2, attaching the heating compensation glass in the step S1 to ITO shielding glass to obtain shielding heating compensation glass;
and S3, attaching the shielding heating compensation glass in the step S2 to the liquid crystal screen, and filling the attached shielding heating compensation glass into a metal face frame to obtain the low-temperature heating and transparent thermal compensation reinforced liquid crystal display.
5. The method as claimed in claim 4, wherein the step S1 is implemented by the following steps:
s11, cutting and edging the double-sided shadow eliminating ITO glass, and setting one surface of the processed double-sided shadow eliminating ITO glass as a thermal compensation surface and the other surface as a surface heating surface;
s12, calculating the theoretical heating power of the liquid crystal display, and determining the size of the thermal compensation area according to the calculated theoretical heating power;
s13, carrying out circuit drawing on the thermal compensation surface by using an etching paste etching process so as to divide the ITO layer of the thermal compensation surface into an edge annular region and a middle rectangular region, wherein the edge annular region consists of two semi-annular regions;
s14, respectively arranging a small square at the four corners of the middle rectangular area to reduce the width of the conductive area at the four corners, thereby forming a thermal compensation pattern of a thermal compensation surface;
s15, manufacturing a corresponding screen printing screen plate according to the thermal compensation pattern, printing etching paste on a thermal compensation surface, and then putting the screen printing screen plate into a high-temperature box for baking;
s16, taking out the baked double-sided shadow eliminating ITO glass, placing the glass to room temperature, and cleaning the surface of the glass;
s17, printing first conductive silver paste at the scribed lines of the two semi-annular areas of the thermal compensation surface, and then pasting thermal compensation layer electrodes on the surface of the first conductive silver paste and then curing;
and S18, printing second conductive silver paste on the glass edge of the heating surface of the double-sided shadow eliminating ITO glass surface, and then pasting a thermal compensation layer electrode on the surface of the second conductive silver paste and curing to obtain the heating compensation glass.
6. The method of claim 5, wherein the theoretical heating power of the liquid crystal display in step S12 is expressed by the following formula:
W＝ηW0 (1)
in the formula (1), W represents the total heating power, eta represents the adjustment coefficient, and W0Representing the theoretical heating power.
7. The method as claimed in claim 6, wherein the small square in step S14 has a side length of 5mm-15 mm.
8. The method as claimed in claim 7, wherein the step S2 is implemented in a specific manner including:
s21, firstly, cleaning one surface of the ITO shielding glass, which is attached to the surface heating layer of the heating compensation glass, and the surface heating layer of the heating compensation glass;
s22, coating UV glue on the surface heating layer of the heating compensation glass, contacting the ITO shielding glass with the surface, which is attached to the surface heating layer of the heating compensation glass, of the ITO shielding glass with the UV glue on the surface heating layer, and exhausting air;
s23, checking whether bubbles and impurities exist, if so, going to S24, and if not, going to S25;
s24, removing the UV glue on the surface heating layer, cleaning the surface of the heating compensation glass, and entering the step S21;
and S25, respectively positioning and curing by using the UV point light source and the UV area light source, thereby obtaining the shielding heating compensation glass.
9. The method as claimed in claim 8, wherein the step S3 is implemented by the following steps:
s31, cleaning the thermal compensation layer of the liquid crystal screen panel and the shielding heating compensation glass;
s32, coating UV glue on the surface of the liquid crystal screen panel, contacting the thermal compensation layer of the shielding heating compensation glass with the UV glue on the liquid crystal screen panel, and exhausting air;
s33, checking whether bubbles and impurities exist, if so, going to S34, and if not, going to S35;
s34, removing the UV glue on the surface of the liquid crystal panel and cleaning the surface of the liquid crystal panel, and entering the step S31;
s35, respectively positioning and curing by using a UV point light source and a UV area light source, and finally, putting the module in which the liquid crystal screen and the shielding heating compensation glass are completely attached into a metal surface frame to obtain the heating and thermal compensation reinforced liquid crystal display.
10. The method as claimed in claim 9, wherein the module and the metal frame are connected by shielding via a conductive gasket in step S35, and the module edge is fixed to the metal frame by dispensing.
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| CN116338999A (en) * | 2022-11-10 | 2023-06-27 | 北京睿智航显示科技有限公司 | Liquid crystal screen |
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Application publication date: 20210108 |