CN110599910B - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
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- CN110599910B CN110599910B CN201910923071.1A CN201910923071A CN110599910B CN 110599910 B CN110599910 B CN 110599910B CN 201910923071 A CN201910923071 A CN 201910923071A CN 110599910 B CN110599910 B CN 110599910B
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The invention relates to the technical field of display, and provides a method for manufacturing a display panel, wherein the display panel comprises a main screen and an auxiliary screen, and the method comprises the following steps: performing different degrees of aging treatment on the main screen and the auxiliary screen so that the brightness of the auxiliary screen is greater than that of the main screen and the brightness difference between the main screen and the auxiliary screen is less than a critical value when the display panel is in a maximum driving state; and the critical value is the critical value of the brightness difference of the main screen and the auxiliary screen when the residual image appears on the display panel. The method can prolong the service time of the display panel before afterimages appear.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device.
Background
With the development of flexible display panels, foldable display panels have come to be developed, and the foldable display panels generally include a main screen and a sub-screen. However, since the foldable display panel is in use, the actual light emitting time period of the main screen is longer than that of the sub-screen. Therefore, after the foldable display panel is used for a certain time, under the same driving state, the brightness of the main screen is less than that of the auxiliary screen, so that afterimages appear when the foldable display panel is used for displaying.
It is to be noted that the information invented in the above background section is only for enhancing the understanding of the background of the present invention, and therefore, may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a display panel, a manufacturing method thereof and a display device. The manufacturing method of the display panel can solve the technical problem that after the display panel is used for a period of time, afterimages appear in the related art.
Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.
According to an aspect of the present invention, there is provided a display panel manufacturing method, the display panel including a main screen and a sub screen, the method including:
performing different degrees of aging treatment on the main screen and the auxiliary screen so that the brightness of the auxiliary screen is greater than that of the main screen and the brightness difference between the main screen and the auxiliary screen is less than a critical value when the display panel is in a maximum driving state;
and the critical value is the critical value of the brightness difference of the main screen and the auxiliary screen when the residual image appears on the display panel.
In an exemplary embodiment of the present invention, the aging process performed on the main screen and the sub-screen at different levels includes:
in the first stage, the main screen and the auxiliary screen are subjected to aging treatment with the same strength at the same time;
and in the second stage, carrying out aging treatment on the secondary screen.
In an exemplary embodiment of the present invention, the aging process performed on the main screen and the sub-screen at different levels includes:
and carrying out aging treatment on the main screen and the auxiliary screen with different strengths at the same stage.
In an exemplary embodiment of the invention, the method further comprises:
and acquiring the brightness difference critical value of the main screen and the auxiliary screen when the display panel has the residual image.
In an exemplary embodiment of the present invention, obtaining a critical value of a luminance difference between the main screen and the sub-screen when the display panel has an afterimage includes:
controlling a main screen and an auxiliary screen of the display panel to emit light with different brightness, and gradually increasing the brightness difference of the main screen and the auxiliary screen;
and monitoring the display state of the display panel in real time, and recording the brightness difference of the main screen and the auxiliary screen when the display panel has the residual image.
In an exemplary embodiment of the present invention, monitoring the display panel in real time includes:
the display state of the display panel is acquired in real time through manual observation.
In an exemplary embodiment of the present invention, the aging process performed on the main screen and the sub-screen at different levels includes:
and driving the display panel to emit light to carry out aging treatment of different degrees on the main screen and the auxiliary screen.
In an exemplary embodiment of the present invention, the aging process performed on the main screen and the sub-screen at different levels includes:
it is right through external light display panel shines to right main screen, vice screen carry out the ageing treatment of different degree.
According to an aspect of the present invention, there is provided a display panel including a main screen and a sub-screen, the display panel being manufactured according to the display panel manufacturing method described above.
According to an aspect of the present invention, there is provided a display device including the display panel described above. The present disclosure provides a display panel, a manufacturing method thereof and a display device, wherein the display panel comprises a main screen and a secondary screen, and the method comprises the following steps: performing different degrees of aging treatment on the main screen and the auxiliary screen so that the brightness of the auxiliary screen is greater than that of the main screen and the brightness difference between the main screen and the auxiliary screen is less than a critical value when the display panel is in a maximum driving state; and the critical value is the critical value of the brightness difference of the main screen and the auxiliary screen when the residual image appears on the display panel. The method can prolong the service time of the display panel before the afterimage appears on the display panel on the premise of not influencing the display effect of the display panel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of a display panel according to the related art;
FIG. 2 is a diagram illustrating a stage of an aging process in use of a display panel according to the related art;
FIG. 3 is a line drawing illustrating an aging process in use of a display panel according to the related art;
fig. 4 is a graph illustrating an aging process of a display panel manufactured by the display panel manufacturing method according to the present disclosure in use.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a system, apparatus, device, method, or computer program product. Accordingly, the present disclosure may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
Fig. 1 is a schematic structural diagram of a display panel in the related art. The display panel may include a main screen 1 and a sub-screen 2. In the related art, before the display panel leaves the factory, the main screen and the sub-screen of the display panel need to be simultaneously subjected to the same aging treatment to make the display panel in a stable display state. As shown in fig. 2 and 3, fig. 2 is a diagram illustrating a stage of an aging process in use of a display panel in the related art, and fig. 3 is a line diagram illustrating an aging process in use of a display panel in the related art. Fig. 2 and 3 show the brightness change states of the display panel in different use stages, wherein the brightness is the maximum display brightness of the display panel. In the first stage, the main screen and the sub-screen are subjected to the same degree of aging treatment before the display panel leaves a factory, so that the brightness of the main screen and the sub-screen is the same when the display panel is initially used. At the second stage, because the actual use duration of the main screen is longer than the actual use duration of the auxiliary screen, the aging degree of the main screen is greater than that of the auxiliary screen, so that the brightness of the main screen is less than that of the auxiliary screen, at the moment, the brightness of the main screen is 97% of that of the initial use, the brightness of the auxiliary screen is 99% of that of the initial use, and the brightness difference between the main screen and the auxiliary screen is 2%. At the third stage, main screen and vice screen are further ageing, and the ageing degree of main screen is greater than the ageing degree of vice screen, and at this moment, the luminance of main screen is 95% of luminance when the initial use, and the luminance of vice screen is 98% of luminance when the initial use, and the luminance difference of main and vice screen is 3%, because the luminance difference of display panel main and vice screen reaches the critical value to can be by the human eye perception, finally cause and show the afterimage phenomenon.
Based on this, the present exemplary embodiment first provides a display panel manufacturing method, the display panel including a main screen and a sub screen, the method including:
performing different degrees of aging treatment on the main screen and the auxiliary screen so that the brightness of the auxiliary screen is greater than that of the main screen and the brightness difference between the main screen and the auxiliary screen is less than a critical value when the display panel is in a maximum driving state;
and the critical value is the critical value of the brightness difference of the main screen and the auxiliary screen when the residual image appears on the display panel. The display panel may be in a maximum driving state, specifically, a display state in which both the main screen and the sub-screen are in maximum brightness.
Fig. 4 is a graph showing an aging process of the display panel manufactured by the display panel manufacturing method according to the present disclosure in use. Fig. 4 shows the brightness variation state of the display panel in different use stages, wherein the brightness is the maximum display brightness of the display panel.
In the first stage, the main screen and the auxiliary screen are aged in different degrees before the display panel leaves a factory, so that the brightness of the main screen is greater than that of the auxiliary screen when the display panel is initially used. And the brightness difference between the main screen and the auxiliary screen is less than the critical value of the afterimage. For example, when the display panel has an afterimage, the luminance difference between the main screen and the sub-screen is 3% of the initial luminance of the main screen, and the display panel may be generated by performing different aging processes on the main screen and the sub-screen such that the luminance of the main screen is 100% and the luminance of the sub-screen is 98%. At the moment, the brightness difference between the main screen and the auxiliary screen is less than 3%, and the display panel cannot generate afterimages.
In the second stage, because the actual use duration of the main screen is longer than the actual use duration of the auxiliary screen, the aging degree of the main screen is greater than that of the auxiliary screen, so that the brightness of the main screen is equal to that of the auxiliary screen, and the brightness of the main screen and the auxiliary screen is 97 percent at the moment.
In the third stage, the main screen and the auxiliary screen are further aged, the aging degree of the main screen is greater than that of the auxiliary screen, at the moment, the brightness of the main screen is 95% of that in the initial use, the brightness of the auxiliary screen is 96% of that in the initial use, the brightness difference of the main screen and the auxiliary screen is 1%, and the display panel has no image sticking phenomenon because the brightness difference of the main screen and the auxiliary screen of the display panel does not exceed the critical value.
At the fourth stage, main screen and vice screen are further ageing, and the ageing degree of main screen is greater than the ageing degree of vice screen, and at this moment, the luminance of main screen is 92% of luminance when the initial use, and the luminance of vice screen is 95% of luminance when the initial use, and the luminance difference of main and vice screen reaches 3%, because the luminance difference of display panel main and vice screen reaches the critical value to can be by the perception of people's eye, finally cause and show the afterimage phenomenon.
The present exemplary embodiment performs different degrees of aging processing on the main screen and the sub-screen at the time of display panel production, so that the degree of aging of the sub-screen is greater than that of the main screen. As shown in fig. 2 and 4, compared with the related art, the display panel manufactured by the present exemplary embodiment has an additional aging stage (the first stage in fig. 4) before the afterimage occurs, thereby prolonging the use time of the display panel before the afterimage occurs. Meanwhile, the brightness difference of the main screen and the auxiliary screen in the maximum driving state of the display panel is smaller than the critical value of the afterimages of the main screen and the auxiliary screen. Thereby ensuring the display effect of the display panel.
In the exemplary embodiment, the aging process performed on the main screen and the sub-screen at different levels may include: in the first stage, the main screen and the auxiliary screen are subjected to aging treatment with the same strength at the same time; and in the second stage, carrying out aging treatment on the secondary screen. Thereby realizing different aging degrees of the main screen and the sub-screen. Wherein, performing aging processing on the main screen and the sub-screen may include: the display panel is driven to emit light, and the light emitted by the display panel is used for irradiating luminescent materials, so that the main screen and the auxiliary screen are subjected to aging treatment. Different aging strengths can be realized by driving different light emitting brightness of the main screen and the auxiliary screen. Further, the aging process for the main screen and the sub-screen may further include: the display panel is irradiated by external light so as to carry out aging treatment on the main screen and the auxiliary screen. Wherein controlling the intensity of the external light may achieve different aging intensities.
It should be understood that, in the present exemplary embodiment, performing different aging processes on the main screen and the sub screen may further include: and carrying out aging treatment on the main screen and the auxiliary screen with different strengths at the same stage.
In this exemplary embodiment, the method may further include: and acquiring the brightness difference critical value of the main screen and the auxiliary screen when the display panel has the residual image. Wherein, when obtaining that display panel appears the afterimage, main screen, vice screen brightness difference's critical value can include:
controlling a main screen and an auxiliary screen of the display panel to emit light with different brightness, and gradually increasing the brightness difference of the main screen and the auxiliary screen;
and monitoring the display state of the display panel in real time, and recording the brightness difference of the main screen and the auxiliary screen when the display panel has the residual image. The display panel is monitored in real time due to the fact that the afterimage phenomenon is related to the perception capability of human eyes, and the display state of the display panel can be obtained in real time through manual observation.
The present exemplary embodiment also provides a display panel including a main screen and a sub-screen, which is manufactured according to the above display panel manufacturing method.
The present exemplary embodiment also provides a display device including the display panel described above. The display device can be a mobile phone, a television, a tablet computer and other display equipment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (8)
1. A method for manufacturing a display panel, the display panel comprising a main screen and a sub-screen, the method comprising:
when the display panel is produced, carrying out aging treatment on the main screen and the auxiliary screen in different degrees, so that the brightness of the auxiliary screen is greater than that of the main screen and the brightness difference between the main screen and the auxiliary screen is less than a critical value when the display panel is in a maximum driving state;
the critical value is the critical value of the brightness difference between the main screen and the auxiliary screen when the residual image appears on the display panel;
the method further comprises the following steps:
acquiring a main screen brightness difference critical value and a sub screen brightness difference critical value when the display panel has the afterimage;
obtain when display panel appears the afterimage, main screen, vice screen brightness difference's critical value includes:
controlling a main screen and an auxiliary screen of the display panel to emit light with different brightness, and gradually increasing the brightness difference of the main screen and the auxiliary screen;
and monitoring the display state of the display panel in real time, and recording the brightness difference of the main screen and the auxiliary screen when the display panel has the residual image.
2. The method for manufacturing a display panel according to claim 1, wherein the performing different aging processes on the main screen and the sub-screen comprises:
in the first stage, the main screen and the auxiliary screen are subjected to aging treatment with the same strength at the same time;
and in the second stage, carrying out aging treatment on the secondary screen.
3. The method for manufacturing a display panel according to claim 1, wherein the performing different aging processes on the main screen and the sub-screen comprises:
and carrying out aging treatment on the main screen and the auxiliary screen with different strengths at the same stage.
4. The method for manufacturing a display panel according to claim 1, wherein monitoring the display panel in real time comprises:
the display state of the display panel is acquired in real time through manual observation.
5. The method for manufacturing a display panel according to claim 1, wherein the performing different aging processes on the main screen and the sub-screen comprises:
and driving the display panel to emit light to carry out aging treatment of different degrees on the main screen and the auxiliary screen.
6. The method for manufacturing a display panel according to claim 1, wherein the performing different aging processes on the main screen and the sub-screen comprises:
it is right through external light display panel shines to right main screen, vice screen carry out the ageing treatment of different degree.
7. A display panel comprising a main screen and a sub-screen, characterized in that it is made by a display panel making method according to any one of claims 1 to 6.
8. A display device characterized by comprising the display panel according to claim 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910923071.1A CN110599910B (en) | 2019-09-27 | 2019-09-27 | Display panel, manufacturing method thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910923071.1A CN110599910B (en) | 2019-09-27 | 2019-09-27 | Display panel, manufacturing method thereof and display device |
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| CN110599910A CN110599910A (en) | 2019-12-20 |
| CN110599910B true CN110599910B (en) | 2022-04-29 |
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|---|---|---|---|---|
| JP5373289B2 (en) * | 2008-01-10 | 2013-12-18 | ソニー株式会社 | Processing method of flat display device |
| CN105957467B (en) * | 2016-04-25 | 2019-12-27 | Oppo广东移动通信有限公司 | Method and device for generating aging information of light-emitting element and terminal |
| CN108182900B (en) * | 2018-01-29 | 2021-08-03 | 上海天马有机发光显示技术有限公司 | Display panel aging treatment device and display panel aging treatment method |
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2019
- 2019-09-27 CN CN201910923071.1A patent/CN110599910B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448907A (en) * | 2002-03-29 | 2003-10-15 | 东北先锋公司 | Method for aging display device and electronic apparatus using same |
| CN104505029A (en) * | 2015-01-15 | 2015-04-08 | 京东方科技集团股份有限公司 | Method and device for mending hue error of OLED display panel, and display device |
| CN104680979A (en) * | 2015-03-23 | 2015-06-03 | 京东方科技集团股份有限公司 | OLED (organic light-emitting diode) display device and method used for correcting residual image of OLED display device |
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