CN110196519B - Method and device for preparing spacer in display panel - Google Patents

Method and device for preparing spacer in display panel Download PDF

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Publication number
CN110196519B
CN110196519B CN201910327261.7A CN201910327261A CN110196519B CN 110196519 B CN110196519 B CN 110196519B CN 201910327261 A CN201910327261 A CN 201910327261A CN 110196519 B CN110196519 B CN 110196519B
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height
color
spacer
initial
color film
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CN110196519A (en
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曾国勇
胡涛
刘谋强
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention provides a method and a device for preparing a spacer in a display panel, wherein the method comprises the following steps: acquiring a height difference between the first color film color resistance and the second color film color resistance; adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height; and manufacturing a corresponding spacer according to the target height. The method and the device for preparing the spacer in the display panel can improve the flatness and the product yield of the display panel.

Description

Method and device for preparing spacer in display panel
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a method and a device for preparing a spacer in a display panel.
[ background of the invention ]
With the development of display panels, the display panels are widely used in various electronic devices, such as mobile phones, computers, and televisions.
A Spacer (PS) is generally provided in the display panel, and functions to maintain flatness when the TFT substrate and the CF substrate are attached and to provide a Gap (Cell Gap) for liquid crystal distribution.
As shown in fig. 1 and 2, the current PS includes two designs, POC (PS on cf) and POA (PS on array), the lcd panel includes an upper substrate 10 and a lower substrate 20, the spacers include a main spacer 11 and an auxiliary spacer 12, the POC-structured PS is disposed on the upper substrate 10, the POA-structured PS is disposed on the lower substrate 10, and the step difference between the main spacer 11 and the auxiliary spacer 12 is a constant value, so that the flatness of the lcd panel can be ensured. Usually, the main spacer 11 is disposed on one color filter and the auxiliary spacer 12 is disposed on the other color filter, however, the step difference between the main spacer 11 and the auxiliary spacer 12 in the conventional POA process is prone to shift, resulting in lower flatness of the display panel and thus reducing the product yield.
[ summary of the invention ]
The invention aims to provide a method and a device for preparing a spacer in a display panel, which can improve the flatness and the product yield of the display panel.
In order to solve the above technical problem, the present invention provides a method for preparing a spacer in a display panel, comprising:
acquiring a height difference between the first color film color resistance and the second color film color resistance;
adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height;
and manufacturing a corresponding spacer according to the target height.
The present invention also provides a device for preparing a spacer in a display panel, comprising:
the acquisition module is used for acquiring the height difference between the first color film color resistance and the second color film color resistance;
the adjusting module is used for adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height;
and the manufacturing module is used for manufacturing the corresponding spacer according to the target height.
According to the method and the device for preparing the spacer in the display panel, the height difference between the first color film color resistance and the second color film color resistance is obtained; adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height; and then, the corresponding spacer is manufactured according to the target height, so that the influence of the height difference of color resistance of the color film on the section difference of the spacer can be eliminated, and the flatness and the product yield of the display panel are improved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a first structure of a conventional LCD panel;
FIG. 2 is a schematic diagram of a second structure of a conventional LCD panel;
FIG. 3 is a schematic diagram of a step difference between a main spacer and an auxiliary spacer of a conventional LCD panel;
FIG. 4 is a flow chart of a method for forming spacers in a display panel according to the present invention;
FIG. 5 is a schematic diagram of a color resistance profile of a liquid crystal display panel according to the present invention;
FIG. 6 is a schematic high-level view of the main spacer of the present invention;
FIG. 7 is a schematic view of a step difference between the main and auxiliary spacers of the present invention;
FIG. 8 is a schematic high-level view of the auxiliary spacer of the present invention;
FIG. 9 is a schematic view of the step difference between the main and auxiliary spacers of the present invention;
FIG. 10 is a schematic structural diagram of an apparatus for manufacturing spacers in a display panel according to the present invention.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
As shown in fig. 3, the different lcd panels a1, a2, A3, a4, a5 and a6 have the same step difference when the illuminance is approximately the same (33.8, 33.7, 33.6, 33.5, 33.8 and 33.9, respectively), the exposure is the same (28, for example), the process gap between the panel and the mask is 290, the parameters of the Developer are the same (75, for example), and the parameters of the soft bake (HP, Hot plate) are the same (100/100, for example), wherein the ordinate represents the step difference and the abscissa represents the different display panels.
The display panel comprises a plurality of color film color resistors, such as a red color film, a green color film, a blue color film and the like. Wherein the spacers include a main spacer and an auxiliary spacer. The main spacer and the auxiliary spacer are respectively positioned on a color film color resistor of one color. Wherein the height of the main spacers is greater than the height of the auxiliary spacers.
The invention also provides a preparation method of the spacer in the display panel, which comprises the following steps:
s101, acquiring a height difference between a first color film color resistance and a second color film color resistance;
for example, as shown in fig. 4, in an embodiment, the height of the first color filter and the height of the second color filter are obtained by probe measurement, and the height difference between the first color filter and the second color filter is obtained. As shown in fig. 5, when the probe is placed on the color filter, an outline of the color filter can be obtained, and the height of the color filter can be obtained according to the outline. Wherein the abscissa in fig. 5 represents the width and the ordinate represents the height, both in um.
S102, adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height;
for example, the initial height of the corresponding spacer is adjusted according to the height difference obtained in the previous step, so as to obtain the target height.
In order to further improve the flatness, when the height of the first color filter resistance is greater than the height of the second color filter resistance, the step S102 includes:
and S1021, reducing the initial height of the spacer corresponding to the first color film color resistor or increasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
For example, when the height of the first color filter is greater than the height of the second color filter, the difference between the height of the first color filter and the height of the second color filter is h 1. The initial height of the main spacer is hx ', and the initial height of the auxiliary spacer is hy'. Taking the example that the first color filter color resistor is provided with the main gapping device, and the second color filter color resistor is provided with the auxiliary gapping device, the steps specifically include:
(1) reducing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain a target height;
for example, when the height of the first color filter is greater than the height of the second color filter, the initial height hx 'of the main spacer is decreased by h1 to obtain the target height hx of the main spacer, wherein the target height hy of the auxiliary spacer is equal to the initial height hy'.
(2) And increasing the initial height of the spacer corresponding to the color resistance of the second color film by the height difference to obtain the target height.
For example, when the height of the first color filter is greater than the height of the second color filter, the initial height hy 'of the auxiliary spacer is increased by h1 to obtain the target height hy of the auxiliary spacer, where the target height hx' of the main spacer is equal to the initial height hx.
When the height of the first color filter is smaller than the height of the second color filter, the step S102 includes:
and S1022, increasing the initial height of the spacer corresponding to the first color film color resistor or decreasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
And when the height of the first color film color resistor is smaller than that of the second color film color resistor, the difference value between the height of the first color film color resistor and the height of the second color film color resistor is h 2. The initial height of the main spacer is hx ', and the initial height of the auxiliary spacer is hy'. Taking the example that the first color filter color resistor is provided with the main gapping device, and the second color filter color resistor is provided with the auxiliary gapping device, the steps specifically include:
(3) and increasing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain the target height.
For example, when the height of the first color filter is smaller than the height of the second color filter, the initial height hx 'of the main spacer is increased by h2 to obtain the target height hx of the main spacer, wherein the target height hy of the auxiliary spacer is equal to the initial height hy'.
(4) And reducing the initial height of the spacer corresponding to the color resistance of the second color film by the height difference to obtain a target height.
For example, when the height of the first color filter is smaller than the height of the second color filter, the initial height hy 'of the auxiliary spacer is decreased by h2 to obtain the target height hy of the auxiliary spacer, wherein the target height hx of the main spacer is equal to the initial height hx'.
S103, manufacturing a corresponding spacer according to the target height.
For example, the main spacer and the auxiliary spacer are manufactured according to the target height of the main spacer and the target height of the auxiliary spacer acquired in step S102.
Wherein, in order to further improve the flatness, the step of manufacturing the corresponding spacer according to the target height comprises:
s1031, manufacturing the main spacer on the first color film color resistor according to the target height of the main spacer;
for example, the master spacer is manufactured on the first color filter color resistor according to the target height hx of the master spacer.
And S1032, manufacturing the auxiliary spacer on the second color film color resistor according to the target height of the auxiliary spacer.
For example, the main spacer is manufactured on the second color filter color resistor according to the target height hy of the auxiliary spacer.
In one embodiment, when the first color filter color resistor is a blue color filter, the second color filter color resistor may be a red color filter or a green color filter, and the main spacer is formed on the blue color filter and the auxiliary spacer is formed on the red color filter, respectively. That is, each spacer is disposed on the color film of one color, and a portion of the color film of the same color is disposed with a spacer.
In one embodiment, in order to simplify the process and reduce the production cost, only the height of the auxiliary spacers may be adjusted, as shown in fig. 6 to 9, where the vertical axes in fig. 6 to 9 all represent the height, and a1 to a6 represent different liquid crystal display panels, and when the height of the main spacers does not change much, the step difference between the corresponding main spacers and the auxiliary spacers also does not change much, as shown in fig. 6 and 7. And when the height of the auxiliary spacer is reduced, the height of the auxiliary spacer as A3 and a4 in fig. 8 is reduced, and the step difference between the main spacer and the auxiliary spacer corresponding to A3 and a4 in fig. 9 becomes large.
As shown in fig. 10, the present invention also provides a device for preparing a spacer in a display panel, comprising: an acquisition module 31, an adjustment module 32 and a production module 33.
The obtaining module 31 is configured to obtain a height difference between the first color filter color resistance and the second color filter color resistance;
the adjusting module 32 is configured to adjust the initial height of the corresponding spacer according to the height difference to obtain a target height;
the manufacturing module 33 is used for manufacturing corresponding spacers according to the target height.
When the height of the first color filter resistance is greater than the height of the second color filter resistance, the adjusting module 32 is specifically configured to: and reducing the initial height of the spacer corresponding to the first color film color resistor or increasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
The adjusting module 32 is specifically configured to: reducing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain a target height; or increasing the initial height of the spacer corresponding to the second color film color resistor by the height difference to obtain the target height.
When the height of the first color filter resistance is smaller than the height of the second color filter resistance, the adjusting module 32 is specifically configured to: and increasing the initial height of the spacer corresponding to the first color film color resistor or decreasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
The adjusting module 32 is specifically configured to: increasing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain a target height; or reducing the initial height of the spacer corresponding to the second color film color resistor by the height difference to obtain the target height.
The spacers include a main spacer and an auxiliary spacer, and the manufacturing module 33 is specifically configured to: and manufacturing the main gap sub on the first color film color resistor according to the target height of the main gap sub and manufacturing the auxiliary gap sub on the second color film color resistor according to the target height of the auxiliary gap sub.
The height difference between the first color film color resistance and the second color film color resistance is obtained; adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height; and then, manufacturing a corresponding spacer according to the target height, so that the height difference between the main spacer and the auxiliary spacer is kept constant, the influence of the height difference of color resistance of a color film on the section difference of the spacer can be eliminated, and the flatness and the product yield of the display panel are improved.
According to the method and the device for preparing the spacer in the display panel, the height difference between the first color film color resistance and the second color film color resistance is obtained; adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height; and then, the corresponding spacer is manufactured according to the target height, so that the influence of the height difference of color resistance of the color film on the section difference of the spacer can be eliminated, and the flatness and the product yield of the display panel are improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims (6)

1. A method for preparing a spacer in a display panel, comprising:
acquiring a height difference between the first color film color resistance and the second color film color resistance;
adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height;
manufacturing a corresponding spacer according to the target height;
when the height of the first color film color resistor is greater than the height of the second color film color resistor, the step of adjusting the initial height of the corresponding spacer according to the height difference to obtain the target height comprises the following steps:
reducing the initial height of the spacer corresponding to the first color film color resistor or increasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference;
when the height of the first color film color resistance is smaller than that of the second color film color resistance, the step of adjusting the initial height of the corresponding spacer according to the height difference to obtain the target height comprises the following steps:
and increasing the initial height of the spacer corresponding to the first color film color resistor or decreasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
2. The method according to claim 1, wherein the step of decreasing the initial height of the spacer corresponding to the first color filter color resistance or increasing the initial height of the spacer corresponding to the second color filter color resistance according to the height difference comprises:
reducing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain a target height; or
And increasing the initial height of the spacer corresponding to the color resistance of the second color film by the height difference to obtain the target height.
3. The method according to claim 1, wherein the step of increasing the initial height of the spacer corresponding to the first color filter color resistance or decreasing the initial height of the spacer corresponding to the second color filter color resistance according to the height difference comprises:
increasing the initial height of the spacer corresponding to the color resistance of the first color film by the height difference to obtain a target height; or
And reducing the initial height of the spacer corresponding to the color resistance of the second color film by the height difference to obtain a target height.
4. The method as claimed in claim 1, wherein the spacers comprise a main spacer and an auxiliary spacer, and the step of fabricating the corresponding spacers according to the target height comprises:
manufacturing the main spacer on the first color film color resistor according to the target height of the main spacer;
and manufacturing the auxiliary spacer on the second color film color resistor according to the target height of the auxiliary spacer.
5. A device for preparing a spacer in a display panel, comprising:
the acquisition module is used for acquiring the height difference between the first color film color resistance and the second color film color resistance;
the adjusting module is used for adjusting the initial height of the corresponding spacer according to the height difference to obtain a target height;
the manufacturing module is used for manufacturing corresponding spacers according to the target height;
when the height of the first color filter is greater than the height of the second color filter, the adjusting module is specifically configured to: reducing the initial height of the spacer corresponding to the first color film color resistor or increasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference;
when the height of the first color filter color resistance is smaller than the height of the second color filter color resistance, the adjusting module is specifically configured to: and increasing the initial height of the spacer corresponding to the first color film color resistor or decreasing the initial height of the spacer corresponding to the second color film color resistor according to the height difference.
6. The apparatus of claim 5, wherein the spacer comprises a main spacer and an auxiliary spacer, and the fabrication module is specifically configured to: manufacturing the main spacer on the first color film color resistor according to the target height of the main spacer; and manufacturing the auxiliary spacer on the second color film color resistor according to the target height of the auxiliary spacer.
CN201910327261.7A 2019-04-23 2019-04-23 Method and device for preparing spacer in display panel Active CN110196519B (en)

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CN109407413A (en) * 2018-11-12 2019-03-01 惠科股份有限公司 Display panel, display device and manufacturing photomask thereof
CN109507827A (en) * 2018-12-27 2019-03-22 惠科股份有限公司 Display panel manufacturing method, display panel manufacturing device and display panel
CN208705625U (en) * 2018-09-30 2019-04-05 惠科股份有限公司 Color film substrate and display panel

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Publication number Priority date Publication date Assignee Title
CN101320169A (en) * 2008-07-21 2008-12-10 友达光电股份有限公司 Spacer structure and display panel
CN106371243A (en) * 2016-11-15 2017-02-01 深圳市华星光电技术有限公司 Display substrate and manufacturing method thereof
CN206773356U (en) * 2017-05-19 2017-12-19 厦门天马微电子有限公司 A kind of display panel
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