CN111103708A - Method for improving brightness visual angle - Google Patents
Method for improving brightness visual angle Download PDFInfo
- Publication number
- CN111103708A CN111103708A CN201911308419.2A CN201911308419A CN111103708A CN 111103708 A CN111103708 A CN 111103708A CN 201911308419 A CN201911308419 A CN 201911308419A CN 111103708 A CN111103708 A CN 111103708A
- Authority
- CN
- China
- Prior art keywords
- angle
- liquid crystal
- brightness
- influence factor
- crystal display
- 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.)
- Granted
Links
Images
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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a method for improving a brightness visual angle, which is used for searching a direct influence factor strongly related to the brightness visual angle. The invention obtains the direct influence factors of the liquid crystal box part on the brightness visual angle and the improvement directions of the direct influence factors through simulation, and reasonably designs the numerical parameters of the direct influence factors, thereby improving the brightness visual angle of the liquid crystal display panel under the condition of not changing the driving voltage and realizing the effect of higher brightness visual angle at lower integrated circuit temperature.
Description
Technical Field
The invention relates to the technical field of display, in particular to a method for improving a brightness visual angle.
Background
The brightness viewing angle is an important parameter of the liquid crystal display panel. The larger the brightness visual angle is, the slower the side-looking brightness is reduced, and because human eyes are sensitive to brightness, the side-looking brightness is high, and the side-looking viewing effect is better. With the development of the technology, the requirements of customers on the brightness viewing angle are gradually increased.
Liquid crystal display devices, such as liquid crystal televisions, are comprised of a liquid crystal display panel and a backlight, and the factors affecting the brightness and viewing angle are also the liquid crystal display panel and the backlight. At present, since the customer directly specifies the backlight architecture, the brightness viewing angle of the lcd tv can only be improved by the performance of the lcd panel.
A scheme of changing a luminance viewing angle by increasing a driving voltage of a liquid crystal display panel has been previously proposed. However, such solutions have the following problems: firstly, the driving voltage of a plurality of liquid crystal display panels is set by a customer, and only a liquid crystal box part can be changed; second, the driving voltage cannot be increased all the time, because the higher the driving voltage, the higher the temperature of the integrated circuit, which is likely to cause other problems.
Therefore, it is desirable to design a method for improving the viewing angle of the brightness of the lcd panel independent of the driving voltage to overcome the drawbacks of the prior art.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides a method for improving the brightness visual angle, which obtains the direct influence factors of the liquid crystal box part on the brightness visual angle and the improvement directions of the direct influence factors through simulation, and reasonably designs the numerical parameters of the direct influence factors, thereby improving the brightness visual angle of the liquid crystal display panel under the condition of not changing the driving voltage and realizing higher brightness visual angle effect at lower integrated circuit temperature.
An object of the present invention is to provide a method for improving a luminance viewing angle, comprising the steps of:
the measuring equipment for searching the direct influence factor strongly related to the brightness visual angle comprises a liquid crystal display panel, a video test signal generator and an optical brightness measuring device, wherein the video test signal generator is used for outputting video test signals with different predicted influence factors to the liquid crystal display panel, and the optical brightness measuring device is used for measuring the brightness value of the liquid crystal display panel at different angles;
providing a prediction influence factor, setting a plurality of video test signals of the prediction influence factor at different values, and sequentially outputting each video test signal to the liquid crystal display panel through the video test signal generator;
when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device and the liquid crystal display panel, and measuring the brightness value of the liquid crystal display panel at different angles by using the optical brightness measuring device;
drawing a change curve of the brightness value of the liquid crystal display panel at different angles when each video test signal of a plurality of video test signals with preset prediction influence factors at different values through simulation; and
determining the direct influence factor through simulation, respectively measuring an angle value at a set brightness view angle corresponding to each video test signal, and judging that the predicted influence factor is not the direct influence factor when the angle values of the measured angles of the predicted influence factor at different values are not changed; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
Further, the determining the direct impact factor through simulation includes measuring an angle value of each of the video test signals corresponding to the set luminance view angles at different values, and under any one of the set luminance view angles, determining that the predicted impact factor is not the direct impact factor when the angle value of the measured angle at the different values of the predicted impact factor is not changed; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
Further, when the variation curves coincide, determining that the predicted impact factor is not the direct impact factor; when the variation curves are not coincident, the predicted influence factor is judged to be the direct influence factor.
Further, the predicted impact factor is related to the structure of the liquid crystal display panel.
Further, after the step of determining the direct impact factor, the method further comprises: and determining the improvement direction of the direct influence factor, comparing and obtaining the maximum value in the maximum brightness values corresponding to each change curve when different values are obtained by adjusting the numerical parameters of the direct influence factor and comparing the results of simulation, wherein the numerical value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
Further, the step of determining the improvement direction of the direct influence factor specifically includes:
setting a plurality of video test signals of the direct influence factors at different values, and sequentially outputting each video test signal to the liquid crystal display panel through the video test signal generator;
when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device and the liquid crystal display panel, and measuring the brightness value of the liquid crystal display panel at different angles by using the optical brightness measuring device;
drawing a change curve of the brightness value of the liquid crystal display panel at different angles when each video test signal of a plurality of video test signals with preset direct influence factors at different values through simulation; and
and acquiring the maximum brightness value corresponding to each change curve, and comparing and acquiring the maximum value in the maximum brightness values corresponding to each change curve, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
Further, after the step of obtaining the maximum brightness value corresponding to each variation curve, the method further includes: and acquiring a minimum brightness value corresponding to each change curve, and comparing the minimum brightness value corresponding to each change curve to acquire a maximum value, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
Furthermore, the liquid crystal display panel comprises a liquid crystal display screen and a backlight module; the optical brightness measuring device is preset with an optical axis orthogonal and vertical to the liquid crystal display panel and is used for searching a measuring angle when the brightness of the backlight module reaches a set brightness visual angle by adjusting the angle between the optical brightness measuring device and the liquid crystal display panel.
Furthermore, the measuring device also comprises an angle measuring device for measuring the angle when the set brightness view angle is reached.
Further, the set luminance viewing angle is from 1/3 luminance viewing angle to 1/2 luminance viewing angle.
The method for improving the brightness visual angle has the advantages that direct influence factors of the liquid crystal box part on the brightness visual angle and the improvement directions of the direct influence factors are obtained through simulation, and the numerical parameters of the direct influence factors are reasonably designed, so that the brightness visual angle of the liquid crystal display panel is improved under the condition of not changing the driving voltage, and the effect of higher brightness visual angle is achieved at lower integrated circuit temperature.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a flowchart illustrating a method for improving a luminance viewing angle according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a measurement apparatus according to an embodiment of the present invention;
fig. 3 is a method for determining a viewing angle value when setting a brightness viewing angle according to an embodiment of the present invention;
FIG. 4 is a simulation result of an embodiment of the present invention in which the predicted impact factor is an ITO angle;
FIG. 5 is a simulation of the pre-tilt angle for the predicted impact factor according to an embodiment of the present invention;
FIG. 6 is a simulation result of the embodiment of the present invention when the predicted impact factor is a polarizer compensation film;
FIG. 7 shows the simulation result when the predicted impact factor is the cell thickness according to the embodiment of the present invention;
FIG. 8 is a simulation result of the case where the predicted impact factor is the difference between the refractive indices of the liquid crystal according to the embodiment of the present invention;
FIG. 9 is a simulation result of the case where the predicted impact factor is the liquid crystal optical path according to the embodiment of the present invention;
FIG. 10 is a schematic diagram illustrating the principle of comparing the optical path differences of different liquid crystals according to the embodiment of the present invention.
The components in the figure are identified as follows:
1. a liquid crystal display panel, 2, a video test signal generator,
3. optical brightness measuring device, 10, measuring equipment.
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 is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and fig. 2, an embodiment of the invention provides a method for improving a luminance viewing angle, including the steps of:
s1, providing a measuring apparatus 10 for finding a direct influence factor strongly correlated with a luminance viewing angle, where fig. 2 is a schematic structural diagram of the measuring apparatus 10, and includes a liquid crystal display panel 1, a video test signal generator 2, and an optical luminance measuring device 3, the video test signal generator 2 is configured to output video test signals with different predicted influence factors to the liquid crystal display panel 1, and the optical luminance measuring device 3 is configured to measure luminance values of the liquid crystal display panel 1 at different angles;
s2, providing a prediction influence factor, setting a plurality of video test signals of the prediction influence factor at different values, and sequentially outputting each video test signal to the liquid crystal display panel 1 through the video test signal generator 2;
s3, when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device 3 and the liquid crystal display panel 1, and using the optical brightness measuring device 3 to measure the brightness value of the liquid crystal display panel 1 at different angles;
s4, drawing a variation curve of the brightness value of the liquid crystal display panel 1 at different angles when each video test signal of a plurality of preset video test signals with the prediction influence factors at different values through simulation; and
s5, determining the direct influence factor through simulation, measuring the angle value at a set brightness view angle corresponding to each video test signal, and judging that the predicted influence factor is not the direct influence factor when the angle value of the measured angle is not changed when the predicted influence factor is at different values; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
In this embodiment, the liquid crystal display panel 1 includes a liquid crystal display screen and a backlight module (BLU); the backlight module (BLU) is used for providing a light source; the optical brightness measuring device 3 is preset to have an optical axis orthogonal to the liquid crystal display panel 1, and is used for searching a measurement angle when the brightness of the backlight module reaches a set brightness visual angle by adjusting the angle between the optical brightness measuring device 3 and the liquid crystal display panel 1.
In this embodiment, the measuring apparatus 10 further includes an angle measuring device (not shown) for measuring the angle when the set brightness viewing angle is reached.
The brightness viewing angle is the white light brightness measured on the liquid crystal display panel 1, so the brightness viewing angle may be referred to as W brightness viewing angle for short. The backlight module (BLU) is used to provide a light source, so the luminance viewing angle of the backlight module may be abbreviated as BLU luminance viewing angle, and the BLU luminance viewing angle is larger than the W luminance viewing angle.
In this embodiment, the set luminance viewing angle is from 1/3 to 1/2. By plotting the set luminance view angle in the variation curve, the intersection point thereof represents the view angle value at the set luminance view angle, as shown in fig. 3 in particular.
Wherein the 1/3 luminance view angle is defined as: the luminance visible angles are a horizontal visible angle and a vertical visible angle when the luminance at the center of the screen of the liquid crystal display panel 1 is reduced to 1/3. The 1/2 luminance perspective is defined as: the luminance visible angles are a horizontal visible angle and a vertical visible angle when the luminance at the center of the screen of the liquid crystal display panel 1 is reduced to 1/2. It is understood that the 1-fold luminance viewing angle is the luminance perpendicular to the center of the screen of the liquid crystal display panel 1, and the 1/n luminance viewing angle is the horizontal viewing angle and the vertical viewing angle when the luminance at the center of the screen of the liquid crystal display panel 1 is reduced to 1/n.
In this embodiment, it can be determined through simulation which factors in the predicted impact factors are the direct impact factors, specifically, angle values at a set luminance view angle are measured respectively corresponding to each of the video test signals, and when the angle values of the measured angles of the predicted impact factors at different values are not changed, it is determined that the predicted impact factors are not the direct impact factors; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
In this embodiment, the determining the direct influence factor includes plotting a variation curve of the brightness of the liquid crystal display screen and the angle of the liquid crystal display screen when the predicted influence factor is in different value ranges. And judging whether the predicted influence factor is the direct influence factor or not by analyzing the numerical value of the change curve.
In this embodiment, when the change curves coincide, it is determined that the predicted impact factor is not the direct impact factor; when the variation curves are not coincident, the predicted influence factor is judged to be the direct influence factor.
In other embodiments, the determining the direct impact factor through simulation includes measuring an angle value corresponding to each of the video test signals when the set luminance view angle is different, and in the case of any one of the set luminance view angles, when the angle value of the measured angle when the predicted impact factor is different is not changed, determining that the predicted impact factor is not the direct impact factor; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
In this embodiment, the predicted impact factor is related to the structure of the liquid crystal display panel 1, and preferably, the predicted impact factor is a factor that may affect the transmittance obtained by analyzing the principle of the luminance viewing angle.
In this embodiment, the predicted impact factors include, but are not limited to, ito angle, pretilt angle, polarizer compensation film, cell thickness, cell refractive index difference, and liquid crystal optical length.
Specifically, if the predicted impact factor is selected as an Indium Tin Oxide (ITO) angle in step S2, and the ITO angle is generally designed to be 45 degrees based on the conventional ITO angle, the ITO angle is changed to 40 degrees for simulation, and the simulation result is shown in fig. 4, where the change curves are overlapped, and it is known that the change of the ITO angle does not affect the luminance viewing angle, and it is determined that the ITO angle is not the direct impact factor.
If the predicted impact factor is selected as the pretilt angle in step S2, the pretilt angles are designed to be 89 degrees, 88 degrees, and 87 degrees, and the simulation results are shown in fig. 5, where the change curves overlap, it is known that the change in the pretilt angle does not affect the luminance viewing angle, and it is determined that the pretilt angle is not the direct impact factor.
If the predicted impact factor is selected as the polarizer compensation film in step S2, the polarizer compensation film is designed to be simulated with the compensation film and without the compensation film, the simulation result is shown in fig. 6, the change curves coincide, it is known that the change of the polarizer compensation film has no impact on the brightness viewing angle, and it is determined that the polarizer compensation film is not the direct impact factor.
If the predicted impact factor is selected as the liquid crystal cell thickness (cell gap) in step S2, the liquid crystal cell thickness is designed to be 3.1um, 3.3um, 3.5um, 3.7um for simulation, the simulation results are shown in fig. 7, the change curves are not coincident, it can be known that the change of the liquid crystal cell thickness has an impact on the luminance viewing angle, and the liquid crystal cell thickness is determined to be the direct impact factor.
If the predicted influence factor is selected as the liquid crystal refractive index difference (LC Δ n) in step S2, the liquid crystal cell thickness is designed to be 3.5um, and the liquid crystal refractive index difference is designed to be 0.1086, 0.1028, 0.0971, 0.0915, and simulation results thereof are shown in fig. 8, where the change curves are not coincident, it is known that the change in the liquid crystal refractive index difference has an influence on the luminance viewing angle, and it is determined that the liquid crystal refractive index difference is the direct influence factor.
If the predicted impact factor is selected as a liquid crystal optical path (LC Δ nd) in step S2, the liquid crystal optical path is equal to the product of the liquid crystal refractive index difference Δ n and the liquid crystal cell thickness d, the liquid crystal optical path is designed to be simulated at 280nm, 300nm, 320nm, 340nm, 360nm, and 380nm, the simulation results are shown in fig. 9, the variation curves do not overlap, it is known that the variation of the liquid crystal optical path has an impact on the luminance viewing angle, and it is determined that the liquid crystal optical path is the direct impact factor.
Through the above analysis, it can be known that the direct influence factors in the present embodiment include the liquid crystal cell thickness, the liquid crystal refractive index difference, and the liquid crystal optical length.
It is to be understood that, in fig. 7 to 9, the horizontal axis represents the measurement angle, and the vertical axis represents the W luminance angle.
In this embodiment, after the step S5 of determining the direct influence factor through simulation, the method further includes:
s6, determining the improvement direction of the direct influence factor, comparing the maximum value of the maximum brightness value corresponding to each change curve when different values are obtained by adjusting the numerical parameters of the direct influence factor and comparing the results of the simulation, wherein the numerical value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
In this embodiment, the step S6 of determining the improvement direction of the direct influence factor specifically includes:
s61, setting a plurality of video test signals of the direct influence factors at different values, and sequentially outputting each video test signal to the liquid crystal display panel 1 through the video test signal generator 2;
s62, when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device 3 and the liquid crystal display panel 1, and using the optical brightness measuring device 3 to measure the brightness value of the liquid crystal display panel 1 at different angles;
s63, drawing a change curve of the brightness value of the liquid crystal display panel 1 at different angles when each video test signal of a plurality of video test signals with preset direct influence factors at different values through simulation; and
and S64, acquiring the maximum brightness value corresponding to each change curve, and obtaining the maximum value in the maximum brightness values corresponding to each change curve in a comparison mode, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
In this embodiment, the step of obtaining the maximum brightness value corresponding to each variation curve further includes:
and S65, obtaining the minimum brightness value corresponding to each change curve, and comparing the minimum brightness value corresponding to each change curve to obtain the maximum value, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
In this embodiment, as can be seen from fig. 7 to 9, the luminance viewing angle increases when the liquid crystal cell thickness decreases, the luminance viewing angle increases when the liquid crystal refractive index difference decreases, and the luminance viewing angle increases when the liquid crystal optical length decreases. When the liquid crystal material is unchanged, the brightness visual angle can be improved by reducing the thickness of the liquid crystal box; when the thickness of the liquid crystal box is not changed, the brightness visual angle can be improved by reducing the refractive index difference of the liquid crystal; or the brightness visual angle is improved by reducing the optical path of the liquid crystal, specifically, the liquid crystal refractive index difference delta n is a larger numerical value, the liquid crystal box thickness d is a smaller numerical value, the liquid crystal box thickness d is a larger numerical value, the liquid crystal refractive index difference delta n is a smaller numerical value, and both the liquid crystal box thickness d and the liquid crystal refractive index difference delta n are smaller numerical values.
In this embodiment, the optical length of the liquid crystal is preferably 360nm or less, more preferably 250nm to 360 nm.
The principle of comparing different liquid crystal optical path differences in the present embodiment is shown in fig. 10, which is to reduce the liquid crystal optical path difference under the same voltage condition; the transmittance (Tr) decreases more when the liquid crystal display panel 1 is viewed from the front and the transmittance (Tr) decreases less when the liquid crystal display panel 1 is viewed from the side, so that an increase in the ratio of the side view/front view can be realized, and the luminance viewing angle can be improved.
The invention has the advantages that the direct influence factors of the liquid crystal box part on the brightness visual angle and the improvement directions of the direct influence factors are obtained through simulation, the numerical parameters of the direct influence factors are reasonably designed, the brightness visual angle of the liquid crystal display panel 1 is improved under the condition of not changing the driving voltage, and the effect of higher brightness visual angle is realized at lower integrated circuit temperature.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A method for improving a luminance viewing angle, comprising the steps of:
the measuring equipment for searching the direct influence factor strongly related to the brightness visual angle comprises a liquid crystal display panel, a video test signal generator and an optical brightness measuring device, wherein the video test signal generator is used for outputting video test signals with different predicted influence factors to the liquid crystal display panel, and the optical brightness measuring device is used for measuring the brightness value of the liquid crystal display panel at different angles;
providing a prediction influence factor, setting a plurality of video test signals of the prediction influence factor at different values, and sequentially outputting each video test signal to the liquid crystal display panel through the video test signal generator;
when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device and the liquid crystal display panel, and measuring the brightness value of the liquid crystal display panel at different angles by using the optical brightness measuring device;
drawing a change curve of the brightness value of the liquid crystal display panel at different angles when each video test signal of a plurality of video test signals with preset prediction influence factors at different values through simulation; and
determining the direct influence factor through simulation, respectively measuring an angle value at a set brightness view angle corresponding to each video test signal, and judging that the predicted influence factor is not the direct influence factor when the angle values of the measured angles of the predicted influence factor at different values are not changed; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
2. The method according to claim 1, wherein said determining said direct impact factors by simulation includes measuring an angle value corresponding to each of said video test signals for different values of said set luminance views, and determining that said predicted impact factor is not said direct impact factor when an angle value of said measured angle for different values of said predicted impact factor is not changed for any of said set luminance views; and determining that the predicted influence factor is the direct influence factor when the angle value of the measurement angle at which the predicted influence factor is at a different value changes.
3. The method according to claim 1, wherein when the variation curves are overlapped, it is determined that the predicted impact factor is not the direct impact factor; when the variation curves are not coincident, the predicted influence factor is judged to be the direct influence factor.
4. The method of claim 1, wherein the predicted impact factor is related to a structure of the LCD panel.
5. The method of improving a luminance view angle according to claim 1, further comprising, after the step of determining the direct impact factor:
and determining the improvement direction of the direct influence factor, comparing and obtaining the maximum value in the maximum brightness values corresponding to each change curve when different values are obtained by adjusting the numerical parameters of the direct influence factor and comparing the results of simulation, wherein the numerical value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
6. The method for improving luminance perspective as claimed in claim 5, wherein the step of determining the improvement direction of the direct impact factor comprises:
setting a plurality of video test signals of the direct influence factors at different values, and sequentially outputting each video test signal to the liquid crystal display panel through the video test signal generator;
when corresponding to each video test signal, adjusting the angle between the optical brightness measuring device and the liquid crystal display panel, and measuring the brightness value of the liquid crystal display panel at different angles by using the optical brightness measuring device;
drawing a change curve of the brightness value of the liquid crystal display panel at different angles when each video test signal of a plurality of video test signals with preset direct influence factors at different values through simulation; and
and acquiring the maximum brightness value corresponding to each change curve, and comparing and acquiring the maximum value in the maximum brightness values corresponding to each change curve, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
7. The method of claim 6, further comprising after the step of obtaining the maximum luminance value corresponding to each variation curve:
and acquiring a minimum brightness value corresponding to each change curve, and comparing the minimum brightness value corresponding to each change curve to acquire a maximum value, wherein the value of the direct influence factor corresponding to the maximum value is the improvement direction of the direct influence factor.
8. The method of claim 1, wherein the liquid crystal display panel comprises a liquid crystal display and a backlight module; the optical brightness measuring device is preset with an optical axis orthogonal and vertical to the liquid crystal display panel and is used for searching a measuring angle when the brightness of the backlight module reaches a set brightness visual angle by adjusting the angle between the optical brightness measuring device and the liquid crystal display panel.
9. The method of claim 1, wherein the measuring device further comprises an angle measuring device for measuring the angle of the set brightness viewing angle.
10. The method of claim 1, wherein the set luminance viewing angle is 1/3 to 1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308419.2A CN111103708B (en) | 2019-12-18 | 2019-12-18 | Method for improving brightness visual angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308419.2A CN111103708B (en) | 2019-12-18 | 2019-12-18 | Method for improving brightness visual angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111103708A true CN111103708A (en) | 2020-05-05 |
| CN111103708B CN111103708B (en) | 2022-07-12 |
Family
ID=70423147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911308419.2A Active CN111103708B (en) | 2019-12-18 | 2019-12-18 | Method for improving brightness visual angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111103708B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022027762A1 (en) * | 2020-08-07 | 2022-02-10 | 深圳市华星光电半导体显示技术有限公司 | Method for calculating luminance viewing angle of previously unknown backlight module, and backlight module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100156925A1 (en) * | 2008-12-24 | 2010-06-24 | Ji Young Ahn | Apparatus and method for simulating video data of liquid crystal display device |
| TW201101803A (en) * | 2009-06-24 | 2011-01-01 | Chunghwa Picture Tubes Ltd | Evaluation method of stereoscopic image display panel and system of the same |
| CN105528999A (en) * | 2016-01-15 | 2016-04-27 | 合一智能科技（深圳）有限公司 | Liquid crystal display screen display control method and device |
| CN106597730A (en) * | 2016-12-27 | 2017-04-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display |
-
2019
- 2019-12-18 CN CN201911308419.2A patent/CN111103708B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100156925A1 (en) * | 2008-12-24 | 2010-06-24 | Ji Young Ahn | Apparatus and method for simulating video data of liquid crystal display device |
| TW201101803A (en) * | 2009-06-24 | 2011-01-01 | Chunghwa Picture Tubes Ltd | Evaluation method of stereoscopic image display panel and system of the same |
| CN105528999A (en) * | 2016-01-15 | 2016-04-27 | 合一智能科技（深圳）有限公司 | Liquid crystal display screen display control method and device |
| CN106597730A (en) * | 2016-12-27 | 2017-04-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display |
Non-Patent Citations (2)
| Title |
|---|
| 尹慧娟: "《液晶显示特定指向视角技术研究》", 《中国优秀硕士学位论文全文数据库 (信息科技辑)》 * |
| 陈煌彬: "《高色域液晶显示的光谱优化技术研究》", 《中国优秀硕士学位论文全文数据库 (信息科技辑)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022027762A1 (en) * | 2020-08-07 | 2022-02-10 | 深圳市华星光电半导体显示技术有限公司 | Method for calculating luminance viewing angle of previously unknown backlight module, and backlight module |
| US11694639B2 (en) | 2020-08-07 | 2023-07-04 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Backlight module and method for calculating viewing angle for unknown backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111103708B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3926072B2 (en) | Liquid crystal display | |
| US7167222B2 (en) | Liquid crystal display with antiglare layer on viewer side having haze equal to or greater than 40 | |
| US20080297431A1 (en) | Liquid Crystal Display Apparatus and Information Device | |
| US9329431B2 (en) | Transflective liquid crystal display panel and transflective liquid crystal display | |
| KR20010020221A (en) | Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom | |
| US9213200B2 (en) | Liquid crystal panel and the liquid crystal display | |
| US20160266438A1 (en) | Transflective liquid crystal display device | |
| WO2014056245A1 (en) | Va display mode compensation structure and va display-mode liquid crystal display device | |
| TW557396B (en) | Liquid crystal display device | |
| US9535287B2 (en) | Liquid crystal panel compensation structure and liquid crystal display apparatus | |
| CN111103708B (en) | Method for improving brightness visual angle | |
| KR20030079513A (en) | Liquid crystal display using compensation film | |
| US8692964B2 (en) | Liquid crystal display and method for manufacturing the same | |
| US20150323834A1 (en) | Transflective liquid crystal panel, display device, array substrate, color filter substrate and fabricating method thereof | |
| WO2017181467A1 (en) | Method for measuring liquid crystal efficiency of liquid crystal layer with respect to incident light | |
| US9638958B2 (en) | Liquid crystal display | |
| WO2014056246A1 (en) | Va display mode compensation structure and va display-mode liquid crystal display device | |
| US20150293406A1 (en) | Single-Layered Biaxial Compensation Structure For Liquid Crystal Panels And The Liquid Crystal Displays | |
| US20160187727A1 (en) | Liquid crystal display | |
| US20140098328A1 (en) | VA Display Mode Compensation Architecture and VA Display Mode Liquid Crystal Display Device | |
| US20160246096A1 (en) | Liquid crystal panel compensation structure and liquid crystal display apparatus | |
| CN112748491B (en) | Polaroid, liquid crystal display module and liquid crystal display compensation simulation method | |
| CN112859450B (en) | Liquid crystal display panel and display device | |
| CN105319788A (en) | Liquid crystal display equipment | |
| US20160124264A1 (en) | Compensation structure for liquid crystal panels and the liquid crystal displays |
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 |