Summary of the invention
In view of this, the invention provides a kind of manufacture method of composite LED glass-based panel, described method technique is simple, and cost is low, can meet the needs of large scale splicing, be suitable for large-scale production and application.
First aspect, the invention provides a kind of manufacture method of composite LED glass-based panel, comprising:
Prepare glass substrate; The first surface of described glass substrate has multiple equally spaced matrix groove, the length and width of described matrix groove, the degree of depth, spacing dimension are equal all respectively;
The exiting surface of multiple monochromatic LED wafer is affixed on respectively on multiple first lining paper;
Respectively classification is carried out to described multiple monochromatic LED wafer;
Respectively reverse mould is carried out to the multiple monochromatic LED wafer after classification; After described reverse mould, the electrode side of described multiple monochromatic LED wafer is affixed on multiple second lining paper respectively;
The multiple monochromatic LED wafer that multiple second lining paper carries respectively is distinguished again reverse mould on same 3rd lining paper;
Spread sheet operation is carried out to the 3rd lining paper, equal with the spacing dimension of described matrix groove in order to the spacing between multiple monochromatic LED wafer that described 3rd lining paper carries;
Multiple monochromatic LED wafer on described 3rd lining paper is loaded described matrix groove;
Hot pressing is positioned to described glass substrate and described multiple monochromatic LED wafer, makes described glass substrate be in molten state, in order to after the cooling period, described multiple monochromatic LED wafer is flush-mounted in the matrix groove of described glass substrate;
After cooling, grinding and polishing is carried out to described first surface;
After annealing, obtained described composite LED glass-based panel.
Preferably, described monochromatic LED wafer is trapezoidal wafer.
Preferably, after described annealing, described method also comprises:
Cleaning-drying and test are carried out to described composite LED glass-based panel.
Preferably, described multiple monochromatic LED wafer comprises: red LED wafer, green LED wafer and blue led wafer.
The manufacture method of a kind of composite LED glass-based panel of the present invention, technique is simple, and cost is low, can meet the needs of large scale splicing, be suitable for large-scale production and application.
Embodiment
The preparation method of composite LED glass-based panel of the present invention, is mainly used in LED display, Ultra fine pitch LED display, super-high density LED display, the positive luminous TV of LED, the positive luminous monitor of LED, LED video wall, LED indicates, the display panel manufacture in the fields such as LED special lighting.
Preparation method's process flow diagram of the composite LED glass-based panel that Fig. 1 provides for the embodiment of the present invention.Fig. 2-Fig. 8 is the preparation process schematic diagram of the composite LED glass-based panel of the embodiment of the present invention, below with Fig. 1 and composition graphs 2-Fig. 8 preparation method of the present invention is described.
As shown in Figure 1, the preparation method of composite LED glass-based panel that the embodiment of the present invention provides comprises the steps:
Step 110, prepares glass substrate;
Concrete, machining is carried out to the glass substrate with optical clarity, carries out the making of matrix groove according to the size set.Form multiple matrix groove by the one side that is machined in glass template, as shown in Figure 2, the spacing between each matrix groove is equal for sectional view, and the groove depth of each matrix groove and length, width dimensions are also equal respectively.
Step 120, is affixed on respectively by the exiting surface of multiple monochromatic LED wafer on multiple first lining paper;
Concrete, be attached to respectively on wafer (wafer) lining paper according to different colours by the multiple monochromatic LED wafer prepared, wherein wafer lining paper sticks on the exiting surface of LED wafer, as shown in Figure 3.Described monochromatic LED wafer is preferably trapezoidal wafer, and the color of LED wafer can select any color as required, and in this example as shown in the figure, multiple monochromatic LED wafer comprises: red LED wafer, green LED wafer and blue led wafer.
Step 130, carries out classification respectively to described multiple monochromatic LED wafer;
Concrete, the electrical measurement mode utilizing pin to survey, to the forward voltage of LED wafer, light intensity, optical wavelength, the parameters such as electric leakage are classified, and inhomogeneity sorts out, and are attached to respectively on different wafer lining papers.For the LED wafer of the different stage sorted out, cross arrangement can be carried out follow-up, make display effect more evenly good, or according to demand, a display panel only be selected to the LED wafer of same rank, to obtain better display effect.
Step 140, carries out reverse mould respectively to the multiple monochromatic LED wafer after classification; After reverse mould, the electrode side of described multiple monochromatic LED wafer is affixed on multiple second lining paper respectively;
Concrete, as shown in Figure 4, the LED wafer pasted on wafer lining paper for exiting surface carries out a reverse mould again, makes bright dipping towards upper, and electrode side is pasted on another wafer lining paper.LED wafer for multiple color carries out the operation of this step respectively.
Step 150, distinguishes reverse mould again on same 3rd lining paper by the multiple monochromatic LED wafer that multiple second lining paper carries respectively;
Concrete, above-mentioned multiple monochromatic LED wafer is adopted special-purpose multifunctional reverse mould technique, and reverse mould can on the lining paper of spread sheet to same respectively, formation red+green+blueness (R+G+B) cell array, as shown in Figure 5.Spread sheet lining paper can stretch in all directions, after being mounted on spread sheet lining paper, is removed by original lining paper.
Step 160, carries out spread sheet operation to the 3rd lining paper, equal with the spacing dimension of described matrix groove in order to the spacing between multiple monochromatic LED wafer that described 3rd lining paper carries;
Concrete, spread sheet lining paper is stretched, precisely expands crystalline substance, the line space between multiple LED wafer of R+G+B cell array and column pitch are all strengthened, until and spacing between each matrix groove match, as indicated with 6.
Step 170, loads described matrix groove by the multiple monochromatic LED wafer on described 3rd lining paper;
Concrete, stylus printing mode can be adopted the LED wafer of upside-down mounting on spread sheet lining paper to be loaded in matrix groove.Or, also can use conventional bonder mode etc., LED wafer be moved into matrix groove.As shown in Figure 7.
Step 180, positions hot pressing to described glass substrate and described multiple monochromatic LED wafer, makes described glass substrate be in molten state, in order to after the cooling period, is flush-mounted in the matrix groove of described glass substrate by described multiple monochromatic LED wafer;
Concrete, position hot pressing to the glass substrate loading LED wafer, temperature controls the temperature making glass be in molten state.In high temperature hot pressing process, make glass be in molten state, thus engage with LED wafer.Meanwhile, in hot pressing, each LED wafer is also in precompressed positioning states.As shown in Figure 8.
Step 190, after cooling, carries out grinding and polishing to described first surface, after annealing, and obtained described composite LED glass-based panel.
Concrete, after cooling, the matrix groove that each LED wafer is fixed on glass substrate with regard to the glass by again solidifying from molten state.
After annealing, also need to carry out cleaning-drying and test to composite LED glass-based panel.
The manufacture method of the composite LED glass-based panel that the embodiment of the present invention provides, by twice reverse mould on lining paper, by the LED wafer reverse mould of multiple color on same spread sheet lining paper, form cell array, reinstalling in the matrix groove of glass substrate, by applying high temperature hot pressing to glass substrate, making wafer embed in the glass substrate of molten state, cool again, namely obtain composite LED glass-based panel.The manufacture method of composite LED glass-based panel of the present invention, technique is simple, and cost is low, can meet the needs of large scale splicing, be suitable for large-scale production and application.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.