CN111796440B - Display panel adjusting method and device - Google Patents
Display panel adjusting method and device Download PDFInfo
- Publication number
- CN111796440B CN111796440B CN202010647112.1A CN202010647112A CN111796440B CN 111796440 B CN111796440 B CN 111796440B CN 202010647112 A CN202010647112 A CN 202010647112A CN 111796440 B CN111796440 B CN 111796440B
- Authority
- CN
- China
- Prior art keywords
- panel
- optical path
- tested
- path difference
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a method and a device for adjusting a display panel. The adjusting method of the display panel comprises the following steps: under the target gray scale, acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light; obtaining the color difference of the panel to be tested according to the first chromaticity and the second chromaticity; when the value of the chromatic aberration is larger than or equal to a first threshold value, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product. According to the method and the device, the optical path difference of the panel to be tested is adjusted, so that the color difference value of the panel to be tested is smaller than the first threshold value, the display panel can be improved timely according to the requirements of customers, and the improvement efficiency of the display panel is improved.
Description
Technical Field
The present disclosure relates to display technologies, and in particular, to a method and an apparatus for adjusting a display panel.
Background
Along with the improvement of the requirements of people on the display panel, how to improve the color difference generated by the display panel under the side view condition is an important improvement direction for improving the use experience of the display panel and meeting the requirements of customers.
The existing display panel displays white light under a side view condition and displays white light under a front view condition and has chromatic aberration, and the chromatic aberration improvement method of the existing display panel is difficult to realize timely improvement of the display panel according to customer requirements.
Therefore, a new adjusting method and device for the display panel are needed to solve the above-mentioned problems.
Disclosure of Invention
The application provides a display panel adjusting method and a device thereof, which are used for solving the problem that the existing color difference improving method of the display panel is difficult to timely improve the display panel according to the requirements of clients.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
the application provides a method for adjusting a display panel, which comprises the following steps:
under the target gray scale, acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light;
acquiring the color difference of the panel to be tested according to the first chromaticity and the second chromaticity;
when the value of the chromatic aberration is larger than or equal to a first threshold value, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product.
In the adjusting method of a display panel provided in the present application, under a target gray scale, the step of obtaining a first chromaticity under a first viewing angle and a second chromaticity under a second viewing angle when the panel to be tested displays white light includes:
acquiring a first third stimulus value under the first visual angle and a second third stimulus value under the second visual angle when the panel to be tested displays white light under the target gray scale;
and acquiring the first chromaticity of the panel to be tested under a first visual angle according to the first tristimulus value, and acquiring the second chromaticity of the panel to be tested under a second visual angle according to the second tristimulus value.
In the adjusting method of a display panel provided in the present application, when the value of the chromatic aberration is greater than or equal to a first threshold, the step of adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold includes:
acquiring the thickness of a liquid crystal layer in the panel to be tested and the double refractive index of the liquid crystal layer;
acquiring the optical path difference of the panel to be tested according to the thickness of the liquid crystal layer and the double refractive index;
and adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value.
In the adjusting method of a display panel provided in the present application, the step of adjusting the optical path difference of the panel to be measured so that the value of the optical path difference is smaller than the first threshold value includes:
and adjusting a first optical path difference corresponding to the red sub-pixel of the panel to be tested, a second optical path difference corresponding to the green sub-pixel of the panel to be tested and a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that the first optical path difference, the second optical path difference and the third optical path difference are smaller than or equal to a first preset value.
In the adjusting method of a display panel provided by the present application, the step of adjusting the first optical path difference corresponding to the red sub-pixel of the panel to be measured, the second optical path difference corresponding to the green sub-pixel of the panel to be measured, and the third optical path difference corresponding to the blue sub-pixel of the panel to be measured, so that the first optical path difference, the second optical path difference, and the third optical path difference are smaller than or equal to a first preset value includes:
and adjusting the first thickness of the liquid crystal layer corresponding to the red sub-pixel, the second thickness of the liquid crystal layer corresponding to the green sub-pixel and the third thickness of the liquid crystal layer corresponding to the blue sub-pixel so that the first thickness, the second thickness and the third thickness are smaller than or equal to a third preset value.
In the adjusting method of a display panel provided in the present application, the step of adjusting the optical path difference of the panel to be measured so that the value of the optical path difference is smaller than the first threshold value includes:
and adjusting a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that the difference value between the first optical path difference corresponding to the red sub-pixel of the panel to be tested and the third optical path difference, and the difference value between the second optical path difference corresponding to the green sub-pixel of the panel to be tested and the third optical path difference are larger than or equal to a second preset value.
In the adjusting method of a display panel provided by the present application, the step of adjusting the third optical path difference corresponding to the blue sub-pixel of the panel to be measured so that the difference between the first optical path difference corresponding to the red sub-pixel of the panel to be measured and the third optical path difference and the difference between the second optical path difference corresponding to the green sub-pixel of the panel to be measured and the third optical path difference are greater than or equal to a second preset value includes:
and adjusting the third thickness of the liquid crystal layer corresponding to the blue sub-pixel so that the difference value between the first thickness and the third thickness of the liquid crystal layer corresponding to the red sub-pixel and the difference value between the second thickness and the third thickness of the liquid crystal layer corresponding to the green sub-pixel are larger than or equal to a fourth preset value.
The application also provides an adjusting device of the display panel, which comprises an acquisition module, a calculation module and a judgment module;
the acquisition module is used for acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light under a target gray level;
the computing module is used for obtaining the color difference of the panel to be tested according to the first chromaticity and the second chromaticity;
the judging module is used for judging whether the value of the chromatic aberration is smaller than a first threshold value, and when the value of the chromatic aberration is larger than or equal to the first threshold value, the optical path difference of the panel to be tested is adjusted so that the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product.
In the adjusting device of the display panel, the acquisition module comprises a first acquisition unit and a second acquisition unit;
the first obtaining unit is used for obtaining a first tristimulus value under the first visual angle and a second tristimulus value under the second visual angle when the panel to be tested displays white light under the target gray level;
the second obtaining unit is configured to obtain the first chromaticity of the panel to be tested under a first viewing angle according to the first stimulus value, and obtain the second chromaticity of the panel to be tested under a second viewing angle according to the second stimulus value.
In the adjusting device for the display panel, the judging module comprises a first judging unit, a third acquiring unit, a fourth acquiring unit and a first adjusting unit;
the first judging unit is used for judging whether the value of the chromatic aberration of the panel to be tested is smaller than the first threshold value;
the third obtaining unit is used for obtaining the thickness of the liquid crystal layer in the panel to be tested and the double refractive index of the liquid crystal layer;
the fourth obtaining unit is used for obtaining the optical path difference of the panel to be tested according to the thickness of the liquid crystal layer and the double refractive index;
the first adjusting unit is used for adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold value.
The beneficial effects are that: according to the method and the device, the optical path difference of the panel to be tested is adjusted, so that the color difference value of the panel to be tested is smaller than the first threshold value, the display panel can be improved timely according to the requirements of customers, and the improvement efficiency of the display panel is improved.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a method for adjusting a display panel according to the present application.
Fig. 2 is a graph of the relationship between color difference and thickness of a liquid crystal layer of a display panel.
Fig. 3 is a graph showing the relationship between color difference and thickness of a liquid crystal layer corresponding to a blue subpixel.
Fig. 4 is a schematic view of a first structure of an adjusting device of the display panel of the present application.
Fig. 5 is a schematic view of a second structure of the adjusting device of the display panel of the present application.
Fig. 6 is a schematic structural view of a first adjusting unit of the adjusting device of the display panel of the present application.
Fig. 7 is a schematic structural view of a first adjusting subunit of the adjusting device of the display panel of the present application.
Fig. 8 is a schematic structural view of a second adjusting subunit of the adjusting device of the display panel of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
In the conventional display panel, for example, a vertical alignment liquid crystal display panel, when the color cast problem is improved, the process of the display panel needs to be changed, and the manufacturing cost is increased and the product yield is reduced after the display panel is improved. Based on the above, the application provides a method and a device for adjusting a display panel.
Referring to fig. 1, the adjusting method of the display panel includes:
s1, under a target gray level, acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light.
In this embodiment, step S1 includes:
s11, under the target gray scale, acquiring a first tristimulus value under the first visual angle and a second tristimulus value under the second visual angle when the panel to be tested displays white light.
S12, acquiring the first chromaticity of the panel to be tested under a first visual angle according to the first tristimulus value, and acquiring the second chromaticity of the panel to be tested under a second visual angle according to the second tristimulus value.
In this embodiment, the first chromaticity may be expressed as x 1 y 1 The second chromaticity may be expressed as x 2 y 2 。
Wherein the first chromaticity x 1 y 1 May include a first component x 1 And a second component y 1 The second chromaticity mayTo include a third component x 2 And a fourth component y 2 。
In this embodiment, the first tristimulus value may be expressed as X 1 Y 1 Z 1 The second tristimulus value may be expressed as X 2 Y 2 Z 2 。
The relation between the first chromaticity and the first tristimulus value is as follows:
x 1 ＝X 1 /(X 1 +Y 1 +Z 1 )，y 1 ＝Y 1 /(X 1 +Y 1 +Z 1 )。
the relation between the second chromaticity and the second tristimulus value is as follows:
x 2 ＝X 2 /(X 2 +Y 2 +Z 2 )，y 2 ＝Y 2 /(X 2 +Y 2 +Z 2 )。
in this embodiment, the target gray scale may be 255 gray scales.
In this embodiment, the first viewing angle may be a front view of the panel to be tested, for example, the first viewing angle is a front view of 0 °.
In this embodiment, the second viewing angle may be an angle of 45 ° with respect to the first viewing angle or another angle when the display panel is viewed from any direction, for example, based on a front view angle of 0 °. For example, the second viewing angle may be an angle of 45 ° with respect to the first viewing angle when the display panel is viewed from any one of the four directions of up, down, left, and right of the display panel when the display panel is viewed from the side.
S2, obtaining the color difference of the panel to be tested according to the first chromaticity and the second chromaticity.
In this embodiment, the chromatic aberration includes a first sub-chromatic aberration Δx and a second sub-chromatic aberration Δy, where the first sub-chromatic aberration Δx is equal to the first chromatic aberration x 1 y 1 And the second chromaticity x 2 y 2 The relation of (2) is: Δx=x 2 -x 1 。
For example, the first sub-colorThe difference may be a second chromaticity x at a viewing angle of 45 ° with respect to a front view angle of 0 ° when the display panel is viewed from any one of the four directions of up, down, left, and right 2 y 2 Is a third component x of (2) 2 First chromaticity x at right angle 1 y 1 Is the first component x of (2) 1 Is a difference in (c).
In this embodiment, the second chromaticity x 2 y 2 Is a third component x of (2) 2 May be the average over multiple viewing angles.
In this embodiment, the second sub-color difference Δy is equal to the first chromaticity x 1 y 1 And the second chromaticity x 2 y 2 The relation of (2) is: Δy=y 2 -y 1 。
For example, the second sub-color difference Δy may be a second chromaticity x at a viewing angle of 45 ° with respect to a front view angle when the display panel is viewed from any one of the four directions of up, down, left, and right, when the front view angle is 0 ° 2 y 2 Fourth component y of (2) 2 First chromaticity x at right angle 1 y 1 Is the second component y of (2) 1 Is a difference in (c).
In this embodiment, the second chromaticity x 2 y 2 Fourth component y of (2) 2 May be the average over multiple viewing angles.
And S3, when the value of the chromatic aberration is larger than or equal to a first threshold value, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value.
In this embodiment, the difference of the optical path differences of the liquid crystal layers in the panel to be tested under the first viewing angle and the second viewing angle is a main factor that causes the panel to be tested under the first viewing angle and the second viewing angle to generate the chromatic aberration, so that the improvement of the chromatic aberration of the panel to be tested can be achieved by improving the optical path differences of the liquid crystal layers.
In this embodiment, the first threshold may be determined according to the requirement of the customer, and may be 0.04 or other values, which are not limited herein.
When the first threshold value is larger than 0.04, color deviation of the display panel under the first visual angle and the second visual angle is obvious, and the display effect of the display panel is affected when the display panel is observed at different angles; when the first threshold value is smaller than or equal to 0.04, color cast of the display panel under the first visual angle and the second visual angle is not easy to be perceived by human eyes, and the display effect of the display panel when the display panel is observed at different angles is improved.
In this embodiment, step S3 includes:
s31, obtaining the thickness of the liquid crystal layer in the panel to be tested and the double refractive index of the liquid crystal layer.
S32, acquiring the optical path difference of the panel to be tested according to the thickness of the liquid crystal layer and the double refractive index.
S33, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value.
In this embodiment, step S33 may include:
s331, adjusting a first optical path difference corresponding to a red sub-pixel of the panel to be tested, a second optical path difference corresponding to a green sub-pixel of the panel to be tested, and a third optical path difference corresponding to a blue sub-pixel of the panel to be tested, so that the first optical path difference, the second optical path difference, and the third optical path difference are smaller than or equal to a first preset value.
In this embodiment, the first preset value is determined by the first threshold value, which is not specifically limited herein.
In this embodiment, when the first threshold is 0.04, the first preset value is 352 nm.
In this embodiment, step S331 may include:
s331a, adjusting a first thickness of the liquid crystal layer corresponding to the red sub-pixel, a second thickness of the liquid crystal layer corresponding to the green sub-pixel, and a third thickness of the liquid crystal layer corresponding to the blue sub-pixel, so that the first thickness, the second thickness, and the third thickness are smaller than or equal to a third preset value.
In this embodiment, since the optical path difference formula Δl= Δn×d, that is, the magnitude of the optical path difference of the liquid crystal layer is equal to the product d of the birefringence Δn of the liquid crystal layer and the thickness of the liquid crystal layer.
Therefore, when the birefringence of the liquid crystal layer is unchanged, the value of the optical path difference is determined by the thickness of the liquid crystal layer.
For example, when the first thickness, the second thickness, and the third thickness are all 3.56 micrometers, the optical path difference is 396 nanometers; when the first thickness, the second thickness, and the third thickness are all 3.46 micrometers, the optical path difference is 385 nanometers; when the first thickness, the second thickness and the third thickness are all 3.36 micrometers, the optical path difference is 374 nanometers; when the first thickness, the second thickness, and the third thickness are all 3.26 micrometers, the optical path difference is 363 nanometers; when the first thickness, the second thickness, and the third thickness are all 3.16 micrometers, the optical path difference is 352 nanometers.
Similarly, when the birefringence of the liquid crystal layer is unchanged, the third preset value is determined by the first preset value, which is not particularly limited herein.
Referring to fig. 2, the relationship between the color difference value of the panel to be tested and the thickness of the liquid crystal layer is shown in the figure, wherein the abscissa indicates the thickness of the liquid crystal layer when the first thickness, the second thickness, and the third thickness are the same, and the ordinate indicates the color difference value.
In this embodiment, when the first threshold is 0.04, the first preset value is 352 nm, and the birefringence of the liquid crystal layer is measured under light with a wavelength of 540-590 nm, the third preset value may be 3.16 μm.
In this embodiment, step S331 may further include:
and S331b, adjusting a first birefringence index of the liquid crystal layer corresponding to the red sub-pixel, a second birefringence index of the liquid crystal layer corresponding to the green sub-pixel and a third birefringence index of the liquid crystal layer corresponding to the blue sub-pixel so that the first birefringence index, the second birefringence index and the third birefringence index are smaller than or equal to a fifth preset value.
In this embodiment, when the first thickness, the second thickness, and the third thickness are unchanged, the fifth preset value is also determined by the first preset value, which is not specifically limited herein.
For example, when the first thickness, the second thickness, and the third thickness are all 3.16 micrometers, the fifth preset value may be 0.11 when the first preset value is 352 nanometers.
In this embodiment, step S33 may also include:
and S332, adjusting a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that the difference value between the first optical path difference corresponding to the red sub-pixel of the panel to be tested and the third optical path difference, and the difference value between the second optical path difference corresponding to the green sub-pixel of the panel to be tested and the third optical path difference are larger than or equal to a second preset value.
In this embodiment, since the value of the optical path difference is determined by the thickness of the liquid crystal layer when the birefringence is unchanged, the third optical path difference is changed when the third thickness of the liquid crystal layer corresponding to the blue subpixel is changed.
For example, when the third thickness is 3.36 microns, the optical path difference is 374 nm; when the third thicknesses are 3.26 micrometers, the optical path difference is 363 nanometers; when the third thickness is 3.16 micrometers, the optical path difference is 352 nanometers; when the third thickness is 3.06 micrometers, the optical path difference is 340 nanometers; when the third thickness is 2.96 micrometers, the optical path difference is 329 nanometers.
In this embodiment, the second preset value is determined by the first threshold value, which is not specifically limited herein.
In this embodiment, when the first threshold is 0.04, the second preset value may be 47 nm.
In this embodiment, step S332 may include:
and S332a, adjusting the third thickness of the liquid crystal layer corresponding to the blue sub-pixel, so that the difference value between the first thickness of the liquid crystal layer corresponding to the red sub-pixel and the third thickness, and the difference value between the second thickness of the liquid crystal layer corresponding to the green sub-pixel and the third thickness are larger than or equal to a fourth preset value.
In this embodiment, when the birefringence of the liquid crystal layer is unchanged and the first thickness and the second thickness remain unchanged, the fourth preset value is determined by the second preset value, which is not particularly limited herein.
Referring to fig. 3, the relationship between the color difference value and the third thickness of the panel to be measured is shown in the figure, wherein the abscissa indicates the value of the third thickness, and the ordinate indicates the value of the color difference.
In this embodiment, when the first threshold is 0.04 nm, the second preset value is 47 nm, the first thickness is the same as the second thickness, and is 3.46 μm, and the birefringence of the liquid crystal layer is the birefringence measured under light with a wavelength of 540-590 nm, the fourth preset value may be 0.42 μm.
In this embodiment, step S332 may also include:
and S332b, adjusting the third birefringence of the liquid crystal layer corresponding to the blue sub-pixel, so that the difference between the first birefringence of the liquid crystal layer corresponding to the red sub-pixel and the third birefringence of the liquid crystal layer corresponding to the green sub-pixel and the second birefringence of the liquid crystal layer corresponding to the third thickness is larger than or equal to a sixth preset value.
In this embodiment, when the first thickness, the second thickness, and the third thickness are unchanged, and the first birefringence and the second birefringence are unchanged, the sixth preset value is also determined by the second preset value, which is not particularly limited herein.
For example, when the first thickness, the second thickness, and the third thickness are all 3.46 micrometers, the sixth preset value may be 0.098 when the first birefringence and the second birefringence are 0.11.
S4, if not, the panel to be tested is a non-abnormal product.
According to the method and the device, the optical path difference of the panel to be tested is adjusted, so that the color difference value of the panel to be tested is smaller than the first threshold value, the display panel can be improved timely according to the requirements of customers, and the improvement efficiency of the display panel is improved.
Referring to fig. 4 to 8, the present application further provides an adjusting device 100 for a display panel. The display panel adjusting device 100 includes an acquisition module 10, a calculation module 20, and a determination module 30.
The obtaining module 10 is configured to obtain, at a target gray level, a first chromaticity at a first viewing angle and a second chromaticity at a second viewing angle when the panel to be tested displays white light.
The calculating module 20 is configured to obtain a color difference of the panel to be measured according to the first chromaticity and the second chromaticity.
The determining module 30 is configured to determine whether the value of the chromatic aberration is smaller than a first threshold, and adjust an optical path difference of the panel to be tested to make the chromatic aberration smaller than the first threshold when the value of the chromatic aberration is greater than or equal to the first threshold; otherwise, the panel to be tested is a non-abnormal product.
Referring to fig. 5, in the adjusting device 100 of the display panel of the present application, the acquiring module 10 includes a first acquiring unit 11 and a second acquiring unit 12.
The first obtaining unit 11 is configured to obtain, at the target gray level, a first tristimulus value at the first viewing angle and a second tristimulus value at the second viewing angle when the panel to be tested displays white light.
The second obtaining unit 12 is configured to obtain the first chromaticity of the panel to be tested under a first viewing angle according to the first tristimulus value, and obtain the second chromaticity of the panel to be tested under a second viewing angle according to the second tristimulus value.
Referring to fig. 5, in the adjusting apparatus 100 for a display panel of the present application, the determining module 30 includes a first determining unit 31, a third obtaining unit 32, a fourth obtaining unit 33, and a first adjusting unit 34, where the determining module 30 includes a first determining unit 30;
the first determining unit 31 is configured to determine whether the value of the color difference of the panel to be tested is smaller than the first threshold;
the three acquisition units 32 are used for acquiring the thickness of the liquid crystal layer in the panel to be tested and the birefringence of the liquid crystal layer;
the fourth obtaining unit 33 is configured to obtain the optical path difference of the panel to be tested according to the thickness and the birefringence of the liquid crystal layer;
the first adjusting unit 34 is configured to adjust the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold.
Referring to fig. 6, the first adjusting unit 34 may include a first adjusting subunit 341 and a second adjusting subunit 342.
The first adjusting subunit 341 is configured to adjust a first optical path difference corresponding to a red sub-pixel of the panel to be tested, a second optical path difference corresponding to a green sub-pixel of the panel to be tested, and a third optical path difference corresponding to a blue sub-pixel of the panel to be tested, so that the first optical path difference, the second optical path difference, and the third optical path difference are smaller than or equal to a first preset value.
Referring to fig. 7, in the present embodiment, the first adjusting subunit 341 may include a first thickness adjusting subunit 3411, where the first thickness adjusting subunit 3411 is configured to adjust a first thickness of the liquid crystal layer corresponding to the red sub-pixel, a second thickness of the liquid crystal layer corresponding to the green sub-pixel, and a third thickness of the liquid crystal layer corresponding to the blue sub-pixel, so that the first thickness, the second thickness, and the third thickness are smaller than or equal to a third preset value, so as to achieve that the first optical path difference, the second optical path difference, and the third optical path difference are smaller than or equal to the first preset value.
Referring to fig. 7, the first adjusting subunit 341 may further include a first birefringence adjusting subunit 3412, where the first birefringence adjusting subunit 3412 is configured to adjust a first birefringence of the liquid crystal layer corresponding to the red subpixel, a second birefringence of the liquid crystal layer corresponding to the green subpixel, and a third birefringence of the liquid crystal layer corresponding to the blue subpixel, so that the first birefringence, the second birefringence, and the third birefringence are less than or equal to a fifth preset value, so as to implement the first optical path difference, the second optical path difference, and the third optical path difference to be less than or equal to the first preset value.
The second adjusting subunit 342 is configured to adjust a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that a difference between the first optical path difference corresponding to the red sub-pixel of the panel to be tested and the third optical path difference, and a difference between the second optical path difference corresponding to the green sub-pixel of the panel to be tested and the third optical path difference are greater than or equal to a second preset value.
Referring to fig. 8, the second adjusting subunit 342 may include a second thickness adjusting subunit 3421, where the second thickness adjusting subunit 3421 is configured to adjust a third thickness of the liquid crystal layer corresponding to the blue sub-pixel, so that a difference between the first thickness of the liquid crystal layer corresponding to the red sub-pixel and the third thickness, and a difference between the second thickness of the liquid crystal layer corresponding to the green sub-pixel and the third thickness are greater than or equal to a fourth preset value, so as to achieve that a difference between a first optical path difference corresponding to the red sub-pixel and the third optical path difference of the panel to be tested, and a difference between a second optical path difference corresponding to the green sub-pixel and the third optical path difference of the panel to be tested are greater than or equal to a second preset value.
Referring to fig. 8, the second adjusting subunit 342 may further include a second refractive index adjusting subunit 3422, where the second refractive index adjusting subunit 3422 is configured to adjust a third birefringence of the liquid crystal layer corresponding to the blue sub-pixel, so that a difference between the first birefringence of the liquid crystal layer corresponding to the red sub-pixel and the third birefringence of the liquid crystal layer corresponding to the green sub-pixel and a difference between the second birefringence of the liquid crystal layer corresponding to the green sub-pixel and the third birefringence of the liquid crystal layer is greater than or equal to a sixth preset value, so as to achieve that a difference between the first optical path difference corresponding to the red sub-pixel and the third optical path difference of the panel to be tested and a difference between the second optical path difference corresponding to the green sub-pixel and the third optical path difference of the panel to be tested are greater than or equal to a second preset value.
In this embodiment, the related working principle of the adjusting device 100 of the display panel can refer to the adjusting method of the display panel, and detailed descriptions thereof are omitted herein.
The application provides a method and a device for adjusting a display panel. The adjusting method of the display panel comprises the following steps: under the target gray scale, acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light; obtaining the color difference of the panel to be tested according to the first chromaticity and the second chromaticity; when the value of the chromatic aberration is larger than or equal to a first threshold value, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product. According to the method and the device, the optical path difference of the panel to be tested is adjusted, so that the color difference value of the panel to be tested is smaller than the first threshold value, the display panel can be improved timely according to the requirements of customers, and the improvement efficiency of the display panel is improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The foregoing describes in detail a method and an apparatus for adjusting a display panel provided in the embodiments of the present application, and specific examples are applied to describe the principles and embodiments of the present application, where the descriptions of the foregoing examples are only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A method for adjusting a display panel, comprising:
under the target gray scale, acquiring a first chromaticity under a first visual angle and a second chromaticity under a second visual angle when the panel to be tested displays white light;
acquiring the color difference of the panel to be tested according to the first chromaticity and the second chromaticity;
when the value of the chromatic aberration is larger than or equal to a first threshold value, adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product;
when the value of the chromatic aberration is greater than or equal to a first threshold value, the step of adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold value comprises the following steps:
acquiring the thickness of a liquid crystal layer in the panel to be tested and the double refractive index of the liquid crystal layer;
acquiring the optical path difference of the panel to be tested according to the thickness of the liquid crystal layer and the double refractive index;
and adjusting the optical path difference of the panel to be tested so that the value of the chromatic aberration is smaller than the first threshold value.
2. The method according to claim 1, wherein the step of obtaining a first chromaticity at a first viewing angle and a second chromaticity at a second viewing angle when the panel to be measured displays white light at the target gray level comprises:
acquiring a first third stimulus value under the first visual angle and a second third stimulus value under the second visual angle when the panel to be tested displays white light under the target gray scale;
and acquiring the first chromaticity of the panel to be tested under a first visual angle according to the first tristimulus value, and acquiring the second chromaticity of the panel to be tested under a second visual angle according to the second tristimulus value.
3. The method according to claim 1, wherein the step of adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold value comprises:
and adjusting a first optical path difference corresponding to the red sub-pixel of the panel to be tested, a second optical path difference corresponding to the green sub-pixel of the panel to be tested and a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that the first optical path difference, the second optical path difference and the third optical path difference are smaller than or equal to a first preset value.
4. The method according to claim 3, wherein the step of adjusting the first optical path difference corresponding to the red sub-pixel of the panel to be measured, the second optical path difference corresponding to the green sub-pixel of the panel to be measured, and the third optical path difference corresponding to the blue sub-pixel of the panel to be measured such that the first optical path difference, the second optical path difference, and the third optical path difference are less than or equal to a first preset value comprises:
and adjusting the first thickness of the liquid crystal layer corresponding to the red sub-pixel, the second thickness of the liquid crystal layer corresponding to the green sub-pixel and the third thickness of the liquid crystal layer corresponding to the blue sub-pixel so that the first thickness, the second thickness and the third thickness are smaller than or equal to a third preset value.
5. The method according to claim 1, wherein the step of adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold value comprises:
and adjusting a third optical path difference corresponding to the blue sub-pixel of the panel to be tested, so that the difference value between the first optical path difference corresponding to the red sub-pixel of the panel to be tested and the third optical path difference, and the difference value between the second optical path difference corresponding to the green sub-pixel of the panel to be tested and the third optical path difference are larger than or equal to a second preset value.
6. The method according to claim 5, wherein the step of adjusting the third optical path difference corresponding to the blue sub-pixel of the panel to be measured so that the difference between the first optical path difference corresponding to the red sub-pixel of the panel to be measured and the third optical path difference and the difference between the second optical path difference corresponding to the green sub-pixel of the panel to be measured and the third optical path difference are greater than or equal to a second preset value comprises:
and adjusting the third thickness of the liquid crystal layer corresponding to the blue sub-pixel so that the difference value between the first thickness and the third thickness of the liquid crystal layer corresponding to the red sub-pixel and the difference value between the second thickness and the third thickness of the liquid crystal layer corresponding to the green sub-pixel are larger than or equal to a fourth preset value.
7. The adjusting device of the display panel is characterized by comprising an acquisition module, a calculation module and a judgment module;
the acquisition module is used for acquiring first chromaticity under a first visual angle and second chromaticity under a second visual angle when the panel to be tested displays white light under the target gray scale;
the computing module is used for obtaining the color difference of the panel to be tested according to the first chromaticity and the second chromaticity;
the judging module is used for judging whether the value of the chromatic aberration is smaller than a first threshold value, and when the value of the chromatic aberration is larger than or equal to the first threshold value, the optical path difference of the panel to be tested is adjusted so that the chromatic aberration is smaller than the first threshold value; otherwise, the panel to be tested is a non-abnormal product;
the judging module comprises a first judging unit, a third acquiring unit, a fourth acquiring unit and a first adjusting unit;
the first judging unit is used for judging whether the value of the chromatic aberration of the panel to be tested is smaller than the first threshold value;
the third obtaining unit is used for obtaining the thickness of the liquid crystal layer in the panel to be tested and the double refractive index of the liquid crystal layer;
the fourth obtaining unit is used for obtaining the optical path difference of the panel to be tested according to the thickness of the liquid crystal layer and the double refractive index;
the first adjusting unit is used for adjusting the optical path difference of the panel to be measured so that the value of the chromatic aberration is smaller than the first threshold value.
8. The device according to claim 7, wherein the acquisition module includes a first acquisition unit and a second acquisition unit;
the first obtaining unit is used for obtaining a first tristimulus value under the first visual angle and a second tristimulus value under the second visual angle when the panel to be tested displays white light under the target gray level;
the second obtaining unit is configured to obtain the first chromaticity of the panel to be tested under a first viewing angle according to the first stimulus value, and obtain the second chromaticity of the panel to be tested under a second viewing angle according to the second stimulus value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647112.1A CN111796440B (en) | 2020-07-07 | 2020-07-07 | Display panel adjusting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647112.1A CN111796440B (en) | 2020-07-07 | 2020-07-07 | Display panel adjusting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111796440A CN111796440A (en) | 2020-10-20 |
| CN111796440B true CN111796440B (en) | 2023-07-25 |
Family
ID=72811197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010647112.1A Active CN111796440B (en) | 2020-07-07 | 2020-07-07 | Display panel adjusting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111796440B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859331B (en) * | 2021-02-26 | 2023-04-07 | 深圳市华星光电半导体显示技术有限公司 | Simulation method of multi-domain vertical orientation liquid crystal display panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487295A (en) * | 2015-12-08 | 2016-04-13 | 深圳市华星光电技术有限公司 | Liquid crystal panel compensation framework and optical compensation method thereof |
| CN111338500A (en) * | 2020-02-08 | 2020-06-26 | 业成科技（成都）有限公司 | Stack structure for improving visual effect of single-layer touch sensing device and touch panel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201137455A (en) * | 2010-04-20 | 2011-11-01 | Chunghwa Picture Tubes Ltd | Method for improving color shift of a liquid crystal display device |
| CN102636825B (en) * | 2012-03-09 | 2015-01-07 | 京东方科技集团股份有限公司 | Method and system for manufacturing reflection diaphragm |
| CN105388649B (en) * | 2015-12-28 | 2018-09-28 | 深圳市华星光电技术有限公司 | The compensation method of the visual angle colour cast of LCD screen |
| CN106873217A (en) * | 2016-12-30 | 2017-06-20 | 惠科股份有限公司 | The manufacture method of display panel |
| CN107085320B (en) * | 2017-04-14 | 2020-02-07 | 深圳市华星光电技术有限公司 | Method for measuring optical path difference of liquid crystal panel |
-
2020
- 2020-07-07 CN CN202010647112.1A patent/CN111796440B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487295A (en) * | 2015-12-08 | 2016-04-13 | 深圳市华星光电技术有限公司 | Liquid crystal panel compensation framework and optical compensation method thereof |
| CN111338500A (en) * | 2020-02-08 | 2020-06-26 | 业成科技（成都）有限公司 | Stack structure for improving visual effect of single-layer touch sensing device and touch panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111796440A (en) | 2020-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10126477B2 (en) | Optical compensation film and method for manufacturing the same, polarizer, liquid crystal display panel and display device | |
| KR100250720B1 (en) | Color lcd device | |
| EP2869117A1 (en) | Dual-viewing angle display panel and manufacturing method therefor | |
| CN111796440B (en) | Display panel adjusting method and device | |
| CN111710311A (en) | Adjusting method and device of display panel | |
| JP5493007B2 (en) | Display device | |
| CN108761925A (en) | Display panel and preparation method thereof and display device | |
| WO2018103170A1 (en) | Drive method for display panel, drive device and display device | |
| CN103926737A (en) | Color film substrate, liquid crystal display panel and liquid crystal display device | |
| TW201627723A (en) | Methods for mura mitigation in curved liquid crystal displays | |
| JP2021096461A (en) | Liquid crystal display device | |
| US7379132B2 (en) | Liquid crystal display and method for determining the contrast of a color layer and polarizer plate | |
| US20140085583A1 (en) | Display panel | |
| US20080024704A1 (en) | Liquid crystal display panel | |
| CN101661175A (en) | Liquid crystal display and method for manufacturing the same | |
| CN102667589B (en) | Liquid crystal display device | |
| TW200907489A (en) | Liquid crystal display device and method for manufacturing the same | |
| JPH11237623A (en) | Liquid crystal device and electronic appliance | |
| TWI254825B (en) | Liquid crystal display | |
| US10573264B2 (en) | Display device and head-mounted display | |
| US8665195B2 (en) | Liquid crystal display device | |
| CN206805069U (en) | A kind of full dot matrix VA types monochrome LCD of high way | |
| CN109188788A (en) | Display panel and display device | |
| US5757524A (en) | Normally white multigap twisted nematic liquid crystal display with reduced hue variation over viewing angle | |
| CN109671407B (en) | Array substrate, display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |