CN111754893A - Method for selecting structural parameters of display panel - Google Patents
Method for selecting structural parameters of display panel Download PDFInfo
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- CN111754893A CN111754893A CN202010641646.3A CN202010641646A CN111754893A CN 111754893 A CN111754893 A CN 111754893A CN 202010641646 A CN202010641646 A CN 202010641646A CN 111754893 A CN111754893 A CN 111754893A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The embodiment of the disclosure provides a method for selecting structural parameters of a display panel. By collecting various parameter values of a sample panel, establishing a new panel model structure according to the parameter values, and giving different material attributes and constraint conditions to the panel model, the state of a display panel in the actual use process can be simulated according to the panel model, and the panel model is operated until the optimal structural parameters are obtained, so that the design flow of the panel is effectively shortened, the abrasion of various film layers of the panel is reduced, the product preparation yield is improved, and the generation cost is reduced.
Description
Technical Field
The present disclosure relates to the field of display panel technologies, and in particular, to a method for selecting a structural parameter of a display panel.
Background
With the continuous development of display technology, the performance and quality of each display device are continuously improved to meet various use requirements of users.
The liquid crystal display has the advantages of high display quality, high contrast and the like, and the application range of the liquid crystal display is wider and wider. However, as the size of the liquid crystal panel increases, and the use field of the display panel increases and the use conditions become more, if the structural parameters inside the panel are unreasonable, the panel is very easy to cause problems in production and transportation processes, for example, in the transportation process, if the display panel generates large vibration, the parameter setting inside the panel is not ideal, the damage of the inner film layer of the panel is easily caused, and the abnormality of picture display is further caused. At present, in order to test whether the display of the panel is poor in the transportation and use processes and predict in advance and enable each structure value in the panel to be an optimal parameter value, a general method is to carry out a surface pressure test and a vibration test, but the method can only carry out the test after the panel is produced, and if the test fails, the in-plane structure needs to be redesigned, so that the time and the labor are consumed, the cost is huge, and the improvement of the comprehensive performance of the panel is not facilitated.
In summary, in the design or use process of the conventional display panel, the panel is often subjected to multiple tests, but in each test process, the display panel is damaged, and if the product test fails, the in-plane structure needs to be redesigned, so that the time and the labor are consumed, the cost is huge, and the panel manufacturing efficiency is seriously reduced.
Disclosure of Invention
The embodiment of the disclosure provides a method for selecting structural parameters of a display panel, so as to solve the problems that in the existing display panel design process, the structural parameters in the panel are not matched, the design is unreasonable, and multiple testing processes are required, so as to improve the design efficiency and performance of the display panel and reduce the production cost.
To solve the above technical problem, the technical solution provided by the embodiment of the present disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a method for selecting a structural parameter of a display panel, including the steps of:
s100: obtaining structural parameters of the internal design of the sample panel, and establishing a new panel model according to the structural parameters;
s101: adding attributes to each structural device in the panel model according to the panel model, and applying constraint conditions to the panel model according to the use condition of the display panel in the actual use process;
s102: calculating and solving the panel model to obtain a pressure value P1 of a supporting component in the panel model to the film layer;
s103: acquiring a critical pressure value P0 of the film layer which is worn under the actual working condition of the sample panel;
s104: comparing the magnitude relation between the pressure values P0 and P1, if P1> P0, adjusting the structural parameter values of the panel model, and continuing the operation of the step S102 after the adjustment is finished;
s105: when the calculated pressure value P1< P0, the calculation is completed and the structural parameter values of the panel model are recorded.
According to an embodiment of the present disclosure, in the step S100, the structural parameters include a film structure of the sample panel, and a size of each structural device inside the sample panel.
According to an embodiment of the present disclosure, a thickness of each film layer in the film layer structure is obtained.
According to an embodiment of the present disclosure, in the step S101, different material parameters are given to different structural devices of the panel model, and a contact relationship between each film layer and the supporting member is established, and a simulation load is applied to the panel model.
According to an embodiment of the present disclosure, in the step S101, the property includes a material property, and the constraint condition includes a supporting force and a working load borne by the film layer.
According to an embodiment of the present disclosure, the material property includes an elastic modulus, a poisson's ratio of the material.
According to an embodiment of the present disclosure, in the step S104, when the pressure value P is smaller than the predetermined pressure value1<P0And then, obtaining each structural parameter value of the panel model, and stopping operation.
In step S104, in step S105, each structural parameter of the panel model further includes a spacing value between each film layer and a geometric shape of the supporting member.
According to an embodiment of the present disclosure, the steps S100 to S105 are repeated multiple times, and the operation results obtained from the multiple operations are averaged.
According to an embodiment of the present disclosure, the stepsIn step S104, when the pressure value P is1>P0And continuously calculating after the adjustment is finished by adjusting the gaps among the film layers of the panel model, the materials of the film layers and the geometric shapes of the supporting parts.
In summary, the beneficial effects of the embodiment of the present disclosure are:
according to the method for selecting the structural parameters of the display panel, in the process of manufacturing the display panel, the parameter values of the sample panel are collected firstly, a new panel model structure is established according to the parameter values, different material attributes and constraint conditions are given to the panel model, the state of the display panel in the actual use process can be simulated according to the panel model, and the panel model is operated until the optimal structural parameters are obtained.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some of the disclosed embodiments, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic flow chart illustrating a method for selecting a structural parameter of a display panel according to an embodiment of the disclosure;
FIG. 2 is a new panel model provided by an embodiment of the present disclosure;
FIG. 3 is a diagram illustrating operation results according to an embodiment of the present disclosure;
fig. 4 is a simplified operation flow diagram according to an embodiment of the disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any inventive step, are intended to be within the scope of the present disclosure.
The display panel needs to be processed by various processing technologies during preparation, and in the traditional product design process, the performance of the whole product can be affected by any process problem. Meanwhile, when a finished product is detected, if a defective product occurs, the whole product is scrapped, so that the manufacturing period of the whole product is finally longer, the service performance of the product is influenced, and the production cost of the product is increased.
The embodiment of the disclosure provides a method for selecting structural parameters of a display panel, which can effectively predict the abrasion condition of an internal film layer of a product, minimize the bad condition of the product and greatly reduce the production cost of the product.
As shown in fig. 1, fig. 1 is a schematic flow chart of a method for selecting a structural parameter of a display panel according to an embodiment of the disclosure. The method for selecting the structural parameters of the display panel comprises the following steps:
s100: obtaining structural parameters of the internal design of the sample panel, and establishing a new panel model according to the structural parameters;
in the preparation process of the display panel, the display panel needs to be designed according to the model parameters of the traditional product, but because the traditional product has defects in design, if the traditional product is not changed, the film layer of the display panel can be greatly abraded in the use process.
In the embodiment of the present disclosure, a sample panel is first provided, and the sample panel can be a display panel manufactured by conventional design. And acquiring various structural parameters of the sample panel according to the sample panel, wherein the structural parameters are parameters of main devices of the display panel, such as the film layer structure in the sample panel, the specific size of each film layer structure, the arrangement sequence of each film layer and the material of each film layer.
Meanwhile, the internal support components, such as the geometric shapes and the positional relationships of the support columns and the support columns, the thickness and the positions of the frame glue and the frame glue, and other parameters are obtained from the sample panel.
After the structural parameters of the whole sample panel are collected, the model is built according to the obtained structural parameters, and a new panel model in the embodiment of the disclosure is obtained.
S101: adding attributes to each structural device in the panel model according to the panel model, and applying constraint conditions to the panel model according to the use condition of the display panel in the actual use process;
as shown in fig. 2, fig. 2 is a new panel model provided by the embodiment of the present disclosure. The panel model includes a substrate base plate 100, support pillars 101, a first film layer 102, a second film layer 103, and a cover plate 104. The supporting pillars 101 are disposed on the substrate base plate 100 and between the substrate base plate 100 and the first film layer 102, and the supporting pillars 101 are used to support the first film layer 102.
The panel model in the embodiment of the present disclosure is only an example, each device in the figure is a main working and stressed structure device, and the actual product further includes other film layers and structures.
And after the panel model is established, applying constraint conditions to the panel model. Before constraint conditions are applied, material attributes are given to structural devices such as film layers of the panel model, stress and abrasion conditions of the simulation display panel under the actual working condition are obtained by applying the constraint conditions, and the stress and abrasion conditions are reflected in the panel model.
When the material property is given, the material of each film layer is set according to the material property of the film layer in the actual product, and specifically, the material property may include parameters such as an elastic modulus or a poisson ratio of the material. If the first film 102 is a passivation layer, the thickness, elastic modulus, poisson's ratio, or silver stress-strain curve of the passivation layer is input into the first film 102 corresponding to the panel model to completely match the actual working condition.
Specifically, in the present disclosure, the contact area 20 between the first film 102 and the supporting pillar 101 is very easily worn in the conventional structure design, and when the film in the contact area 20 is worn, the display panel may have a problem during displaying.
Therefore, a load F is applied to the display panel, and the magnitude of the load F can be set according to the maximum pressure that the display panel can withstand during actual use.
S102: calculating and solving the panel model to obtain a pressure value P1 of a supporting component in the panel model to the film layer;
after the working load is applied, a pressure P1 is generated between the support beam 101 and the first film 102, and P1 is obtained as F/S according to the contact area S between the support beam 101 and the first film 102 and the load F. The greater the value of P1, the more likely it is that wear will occur in the contact area 20.
S103: acquiring a critical pressure value P0 of the film layer which is worn under the actual working condition of the sample panel;
as shown in fig. 3, fig. 3 is a schematic diagram illustrating an operation result according to an embodiment of the disclosure. Fig. 3 is a simulation example only, and after the load is applied, the pressure P is 3.9747x105pa. Further, since the panel model needs to be truly reflected in the wear condition under the actual working condition, the critical pressure value P0 of the first film 102 in the contact region 20 when the sample model starts to wear under the actual working condition needs to be determined, that is, when the pressure value in the contact region 20 reaches P0, the film wear occurs, and the wear condition becomes more serious the greater the pressure.
S104: comparing the magnitude relation between the pressure values P0 and P1, if P1> P0, adjusting the structural parameter values of the panel model, and continuing the operation of the step S102 after the adjustment is finished;
in the embodiment of the present disclosure, the panel model can truly reflect the stress and wear of the panel under the actual working condition, so that the pressure values P0 and P1 are compared, and if the pressure value P1 in the panel model is greater than the pressure value P0 in the sample panel, it indicates that the contact area 20 of the panel model is worn.
In order to avoid the abrasion of the first film 102, in the embodiment of the disclosure, structural parameters of the panel model, such as material properties of the first film 102, a gap distance between the films, a size of a contact area S between the supporting pillars 101 and the first film 102, or a number and a geometric shape of the supporting pillars 101, are adjusted, and then the panel model is operated to obtain a pressure value P of the contact region 20 under a new structural parameter, and the pressure value P is compared with P0.
S105: when the pressure value P1< P0 is obtained through calculation, the calculation is completed, and each structural parameter value of the panel model is recorded;
and stopping giving new parameters to each device structure until the P1 is less than the P0 under the condition of the new structure parameters. When P1< P0, i.e. indicates that the pressure value P1 in the contact region 20 does not exceed the critical pressure value P0, no wear of the first membrane layer 102 in the contact region 20 occurs.
Therefore, through the assignment and selection of the structure parameters for multiple times, preferably, the operation can be carried out for multiple times, the average value is obtained from all the operation structures, and each structure parameter of the panel model is determined according to the size of the average value. The abrasion of the first film layer 102 in an actual product is effectively avoided, the design process of the display panel is further improved, the condition that the inside of the film layer is abraded after the product is assembled is reduced, and the production cost is reduced.
In the embodiment of the disclosure, when performing model building and operation, the operation can be performed in the existing mechanical simulation software. Specifically, as shown in fig. 4, fig. 4 is a simplified operation flow diagram provided by the embodiment of the disclosure. The operation process comprises the following steps:
s200: obtaining design parameters and film layer material parameters in the liquid crystal display panel;
s201: simplifying the in-plane structure, and carrying out simulation modeling and calculation;
s202: extracting the film layer support reaction force of the simulation result;
s203: obtaining the pressure P born by the in-plane film layer;
s204: the critical pressure P0 to which the film layer obtained by the experiment is subjected is compared with P.
During comparison, if P < P0, the structural parameters of the calculation meet the requirements, and if P is greater than or equal to P0, the above steps S201-S204 are repeated until the calculation result meets the requirements, and each influence factor affecting the design of the display panel is found, and finally each structural parameter value is obtained.
The above detailed description is provided for the method for selecting the structural parameters of the display panel provided by the embodiment of the present disclosure, and the description of the embodiment is only used to help understanding the technical solution and the core idea of the present disclosure; those of ordinary skill in the art will understand that: it is to be understood that modifications may be made to the arrangements described in the embodiments above, and such modifications or alterations may be made without departing from the spirit of the respective arrangements of the embodiments of the present disclosure.
Claims (10)
1. A method for selecting structural parameters of a display panel is characterized by comprising the following steps:
s100: obtaining structural parameters of the internal design of the sample panel, and establishing a new panel model according to the structural parameters;
s101: adding attributes to each structural device in the panel model according to the panel model, and applying constraint conditions to the panel model according to the use condition of the display panel in the actual use process;
s102: calculating and solving the panel model to obtain the pressure value P of the supporting component in the panel model to the film layer1；
S103: obtaining a critical pressure value P of the sample panel under the actual working condition that the film layer begins to be worn0；
S104: comparing the pressure value P0And P1If P is the magnitude of1>P0Adjusting the structural parameter value of the panel model, and continuing the operation of the step S102 after the adjustment is finished;
s105: when the calculated pressure value P is obtained1<P0And then, finishing the operation and recording each structural parameter value of the panel model.
2. The method according to claim 1, wherein the structural parameters comprise a film structure of the sample panel, and a size of each structural device inside the sample panel in step S100.
3. The method as claimed in claim 2, wherein the thickness of each film layer in the film layer structure is obtained.
4. The method for selecting structural parameters of a display panel according to claim 1, wherein in step S101, different material parameters are given to different structural devices of the panel model, and a contact relationship between each film layer and a supporting member is established while applying a simulation load to the panel model.
5. The method for selecting structural parameters of a display panel according to claim 1, wherein in step S101, the properties include material properties, and the constraint conditions include a supporting force and a working load to which the film layer is subjected.
6. The method of claim 5, wherein the material property comprises an elastic modulus and a Poisson's ratio of the material.
7. The method for selecting structural parameters of a display panel according to claim 1, wherein in step S104, when the pressure value P is greater than the preset pressure value1<P0And then, obtaining each structural parameter value of the panel model, and stopping operation.
8. The method for selecting structural parameters of a display panel according to claim 1, wherein in step S105, each of the structural parameters of the panel model further includes a spacing value between each of the film layers and a geometric form of the supporting member.
9. The method for selecting structural parameters of a display panel according to claim 1, wherein the steps S100-S105 are repeated a plurality of times, and the operation results obtained from the plurality of operations are averaged.
10. The method for selecting structural parameters of a display panel according to claim 1, wherein in step S104, when the pressure value P is greater than the preset pressure value1>P0And continuously calculating after the adjustment is finished by adjusting the gaps among the film layers of the panel model, the materials of the film layers and the geometric shapes of the supporting parts.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112581868A (en) * | 2020-12-09 | 2021-03-30 | 惠州市华星光电技术有限公司 | Flexible display panel and preparation method thereof |
| CN112904604A (en) * | 2021-02-21 | 2021-06-04 | 惠州市华星光电技术有限公司 | Display panel support column performance evaluation method and device and display panel |
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Application publication date: 20201009 |