CN111477169A - Brightness control method for display mode switching on O L ED panel - Google Patents
Brightness control method for display mode switching on O L ED panel Download PDFInfo
- Publication number
- CN111477169A CN111477169A CN202010255962.7A CN202010255962A CN111477169A CN 111477169 A CN111477169 A CN 111477169A CN 202010255962 A CN202010255962 A CN 202010255962A CN 111477169 A CN111477169 A CN 111477169A
- Authority
- CN
- China
- Prior art keywords
- brightness
- mode
- interval
- transition
- panel
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to a brightness control method for display mode switching on an O L ED panel, wherein the display modes comprise a normal mode, an HBM mode and an AOD mode, a transition interval is provided when the mode is switched from an A0D mode to another mode or the mode is switched from the other mode to the AOD mode, the brightness of the O L ED panel is black in the transition interval or the brightness of the O L ED panel is transition brightness, a dimming interval is entered before the transition interval when the mode is switched from the A0D mode to the other mode or the mode is switched from the other mode to the AOD mode, the brightness value of the current display mode is gradually adjusted to be black in the dimming interval, or the brightness value of the current display mode is gradually adjusted to be transition brightness in the dimming interval.
Description
Technical Field
The invention relates to the technical field of display of O L ED panels, in particular to a brightness control method for switching display modes on an O L ED panel.
Background
Most electronic devices are displaying various contents using a display panel and from the existing CRT to the TFT L CD, and in recent years, the use of Organic light Emitting display devices employing Organic light Emitting diodes (O L ED, Organic L light-Emitting Diode) is rapidly expanding.
In particular, as the use environment of mobile products increases, the screen brightness may be adjusted according to the specific use environment. An effective control method is required in switching the screen brightness in order to more stably display the brightness of the switched display mode.
The Display of the O L ED Display panel can be generally divided into 3 Display modes, one is a normal mode, i.e. displaying at normal Brightness, the other is a High Brightness Mode (HBM) for improving the readability of the screen outdoors or under strong light, and the other is an AOD (Always On Display) mode for reducing the current consumption during the standby state to improve the service life of the battery power.
The display modes can be freely switched. It is necessary to design an effective control method in switching the display mode so as to more stably display the brightness of the switched display mode and to prevent the user from feeling unnatural at the time of switching.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a brightness control method for switching display modes on an O L ED panel, which can more stably display the brightness of the display modes after switching and prevent users from feeling unnatural during switching.
The technical scheme adopted by the invention for solving the technical problem is that the brightness control method for switching the display modes on the O L ED panel comprises a normal mode, an HBM mode and an AOD mode, particularly, a transition interval is provided when the display modes are switched from the A0D mode to other modes or switched from other modes to the AOD mode, and the brightness of the O L ED panel in the transition interval is black or the brightness of the O L ED panel is transition brightness.
Preferably, the O L ED panel luminance in the transition interval is black, that is, the transition interval is a black frame interval, and the O L ED panel luminance is changed to the luminance of the next display mode directly after the black frame interval is finished.
During this transition interval, signal changes such as voltage, frame frequency, etc. required for switching of the display mode can be handled. The normal mode and the HBM mode are switched without transition intervals, and signal change processing such as voltage and frame frequency is not needed when the normal mode and the HBM mode are switched.
More preferably, when the mode is switched from the A0D mode to the other mode or the other mode is switched to the AOD mode, the dimming interval is entered first, and then the transition interval is entered, the brightness value of the current display mode is gradually adjusted to black in the dimming interval, the brightness of the O L ED panel in the transition interval is black, that is, the transition interval is a black frame interval, and after the black frame interval is ended, the brightness of the next display mode is gradually adjusted from black through the next dimming interval.
Preferably, the O L ED panel brightness in the transition interval is a transition brightness, and the transition brightness is a smaller brightness value of the current display mode and the brightness value of the next display mode, for example, the transition brightness may be the brightness value of the AOD mode, and the O L ED panel brightness directly changes to the brightness of the next display mode after the transition interval ends.
More preferably, the dimming interval is entered first when the mode is switched from the A0D mode to the other mode or the other mode is switched to the AOD mode, the brightness of the O L ED panel in the transition interval is transition brightness, the transition brightness is the smaller brightness value of the current display mode and the brightness value of the next display mode, for example, the transition brightness can be the brightness value of the AOD mode, the brightness value of the current display mode is gradually adjusted to the transition brightness in the dimming interval, and the brightness of the next display mode is gradually adjusted from the transition brightness through the next dimming interval after the transition interval is ended.
The invention has the advantages that the brightness of the display mode after switching can be displayed more stably, the user is prevented from feeling unnatural during switching by increasing the transition interval and the dimming interval and adopting the transition and dimming control method, and the display quality of the O L ED panel is effectively improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the switching of three display modes of an O L ED panel;
FIG. 2 is a diagram illustrating brightness value ranges for three display modes;
FIG. 3 is a schematic diagram of brightness switching for a control method using black frame intervals and no dimming intervals;
FIG. 4 is a schematic diagram of luminance switching using a control method of black frame interval plus dimming interval;
FIG. 5 is a schematic diagram of brightness switching using a control method with transitional brightness and no dimming interval;
FIG. 6 is a schematic diagram of brightness switching using a control method of transition brightness plus dimming interval;
FIG. 7 is a flowchart of a control method using a black frame interval plus a dimming interval when switching from a normal mode to an AOD mode;
Detailed Description
The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in FIG. 1, the display of an O L ED display panel can be generally divided into 3 display modes, one being a normal mode, two being an HBM mode, and three being an AOD mode, wherein each display mode can be freely switched between the display modes, as shown in FIG. 2, the maximum brightness of the HBM mode > the maximum brightness of the normal mode > the maximum brightness of the AOD mode.
Preferred embodiment as shown in fig. 3, a brightness control method for display mode conversion on an O L ED panel, the display mode including a normal mode, an HBM mode, and an AOD mode, particularly, when switching from an A0D mode to another mode or from another mode to an AOD mode, has a transition interval in which the O L ED panel brightness is black, that is, the transition interval is a black frame interval, and after the black frame interval ends, the O L ED panel brightness directly changes to the brightness of the next display mode.
During this transition interval, signal changes such as voltage, frame frequency, etc. required for switching of the display mode can be handled. The normal mode and the HBM mode are switched without transition intervals, and signal change processing such as voltage and frame frequency is not needed when the normal mode and the HBM mode are switched.
In a second preferred embodiment, as shown in fig. 4, when the mode is switched from the A0D mode to another mode or from another mode to the AOD mode, the dimming interval is entered first, and then the transition interval is entered, the brightness value of the current display mode is gradually adjusted to black (the brightness value is equal to 0) in the dimming interval, the brightness of the O L ED panel in the transition interval is black, that is, the transition interval is a black frame interval, and after the black frame interval is ended, the brightness of the next display mode is gradually adjusted from black via the next dimming interval.
The dimming interval is set by the dimming step control register to the interval values of the dimming on, off and dimming interval.
The temporary dimming brightness within the dimming interval is set by the brightness adjustment register.
The dimming interval is increased to prevent the user from feeling unnatural during switching, thereby effectively improving the display quality of the O L ED panel.
As shown in fig. 7, when the normal mode is switched to the AOD mode, a flow chart of a control method of black frame interval plus dimming interval is adopted; presetting the current mode as a normal mode, an HBM mode or an AOD mode, if the current mode is in the normal mode, starting the AOD mode, judging whether a black frame interval is added, determining an interval value of the black frame interval by a black frame control register, judging whether a dimming interval is added for dimming setting, entering a transition interval after the dimming interval, and switching to the AOD mode.
The preferred embodiment is also shown in fig. 5, when switching from the A0D mode to another mode or from another mode to the AOD mode, there is a transition interval, in which the O L ED panel brightness is a transition brightness, the transition brightness is the smaller brightness value of the current display mode and the brightness value of the next display mode, for example, the transition brightness is the brightness value of the AOD mode, and the O L ED panel brightness directly changes to the brightness of the next display mode after the transition interval ends.
In a fourth preferred embodiment, as shown in fig. 6, when the mode is switched from the A0D mode to another mode or from another mode to the AOD mode, a dimming interval is entered first and then a transition interval is entered, the luminance of the O L ED panel in the transition interval is a transition luminance, the transition luminance is a smaller luminance value of the current display mode and the luminance value of the next display mode, for example, the transition luminance is the luminance value of the AOD mode, the luminance value of the current display mode is gradually adjusted to the transition luminance in the dimming interval, the luminance value of the transition luminance is gradually adjusted from the transition luminance to the luminance value of the next display mode through the next dimming interval after the transition interval is ended, the luminance value of the transition luminance is greater than 0, that is, the transition luminance having a certain luminance is not a black frame interval but a transition luminance, and the magnitude of a luminance jump is reduced.
The dimming interval is set by the dimming step control register to the interval values of the dimming on, off and dimming interval.
The temporary dimming brightness within the dimming interval is set by the brightness adjustment register.
The calculation of the temporary dimming brightness value may be calculated as follows:
the temporary dimming brightness value is the brightness value of the normal mode corresponding to the maximum brightness value of the AOD mode/the number of bits of the brightness adjustment register.
The O L ED panel includes a pixel block including a plurality of pixels to be emitted according to a data signal and an injection signal, a display mode control block to control a display mode, a frame control block to determine a display of a transition interval, a luminance control block to determine a luminance in each display mode, and a luminance calculation block to determine a final luminance of the display mode to be switched.
By adopting the control method, the brightness of the display mode after switching can be displayed more stably, the user is prevented from feeling unnatural during switching, and the display quality of the O L ED panel is effectively improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A brightness control method for display mode switching on an O L ED panel, wherein the display modes comprise a normal mode, an HBM mode and an AOD mode, and is characterized in that the display modes are switched from an A0D mode to other modes or from other modes to the AOD mode, and a transition interval exists, and the brightness of the O L ED panel in the transition interval is black or the brightness of the O L ED panel is transition brightness.
2. The method for controlling brightness of display mode switching on an O L ED panel according to claim 1, wherein the O L ED panel brightness is black in a transition interval, that is, the transition interval is a black frame interval, and the O L ED panel brightness changes directly to the brightness of the next display mode after the black frame interval is over.
3. The brightness control method for display mode switching on the O L ED panel according to claim 1, wherein the brightness value of the current display mode is gradually adjusted to black in the dimming interval after entering the dimming interval when switching from the A0D mode to the other mode or switching from the other mode to the AOD mode, and the O L ED panel brightness in the transition interval is black, that is, the transition interval is a black frame interval.
4. The method for controlling brightness of display mode switching on an O L ED panel according to claim 3, wherein the brightness of the next display mode is gradually adjusted from black via a next dimming interval after the black frame interval is over.
5. The method for controlling brightness of display mode switching on an O L ED panel according to claim 1, wherein the O L ED panel brightness in a transition interval is a transition brightness, the transition brightness is a smaller brightness value of the current display mode and the brightness value of the next display mode, and the O L ED panel brightness is directly changed to the brightness of the next display mode after the transition interval is over.
6. The method as claimed in claim 1, wherein the brightness control method for switching between display modes on an O L ED panel comprises switching from A0D mode to other mode or from other mode to AOD mode, entering a dimming interval, and entering a transition interval, wherein the brightness of the O L ED panel in the transition interval is a transition brightness, and the transition brightness is a smaller brightness value between the brightness value of the current display mode and the brightness value of the next display mode, and gradually adjusting the brightness value of the current display mode to the transition brightness in the dimming interval.
7. The method for controlling brightness of display mode switching on an O L ED panel according to claim 6, wherein the brightness of the display mode is gradually adjusted from the transitional brightness to the next display mode via the next dimming interval after the transitional interval is over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255962.7A CN111477169A (en) | 2020-04-02 | 2020-04-02 | Brightness control method for display mode switching on O L ED panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255962.7A CN111477169A (en) | 2020-04-02 | 2020-04-02 | Brightness control method for display mode switching on O L ED panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111477169A true CN111477169A (en) | 2020-07-31 |
Family
ID=71749608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010255962.7A Pending CN111477169A (en) | 2020-04-02 | 2020-04-02 | Brightness control method for display mode switching on O L ED panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111477169A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657301A (en) * | 2016-02-22 | 2016-06-08 | 深圳市华星光电技术有限公司 | Image displaying method and device |
| CN106847200A (en) * | 2015-11-24 | 2017-06-13 | 乐金显示有限公司 | Display device and its driving method |
| CN109889040A (en) * | 2017-12-04 | 2019-06-14 | 三星显示有限公司 | DC-DC converter |
| US20190197988A1 (en) * | 2017-12-26 | 2019-06-27 | Raydium Semiconductor Corporation | Display mode conversion method applied to display driving circuit |
| CN110085153A (en) * | 2018-01-25 | 2019-08-02 | 三星显示有限公司 | The method supported the display equipment of low power mode and display equipment is operated |
| CN110491352A (en) * | 2019-09-26 | 2019-11-22 | 北京集创北方科技股份有限公司 | Brightness adjusting method, device |
-
2020
- 2020-04-02 CN CN202010255962.7A patent/CN111477169A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847200A (en) * | 2015-11-24 | 2017-06-13 | 乐金显示有限公司 | Display device and its driving method |
| CN105657301A (en) * | 2016-02-22 | 2016-06-08 | 深圳市华星光电技术有限公司 | Image displaying method and device |
| CN109889040A (en) * | 2017-12-04 | 2019-06-14 | 三星显示有限公司 | DC-DC converter |
| US20190197988A1 (en) * | 2017-12-26 | 2019-06-27 | Raydium Semiconductor Corporation | Display mode conversion method applied to display driving circuit |
| CN110085153A (en) * | 2018-01-25 | 2019-08-02 | 三星显示有限公司 | The method supported the display equipment of low power mode and display equipment is operated |
| CN110491352A (en) * | 2019-09-26 | 2019-11-22 | 北京集创北方科技股份有限公司 | Brightness adjusting method, device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2204792B1 (en) | Method and device for controlling power of active matrix organic light-emitting diode | |
| KR101492718B1 (en) | Selective dimming to reduce power of a light emitting display device | |
| US7782279B2 (en) | Organic light emitting diode display device and driving method thereof | |
| US8466857B2 (en) | Image display apparatus for adjusting luminance of a display based on remaining battery level and estimated power consumption | |
| KR100415510B1 (en) | Liquid crystal display device with a function of adaptive brightness intensifier and method for therefor | |
| EP1758357B1 (en) | Apparatus and method for displaying a mobile terminal standby screen | |
| CN110299104B (en) | Driving circuit and driving method of display panel and display device | |
| CN101485191B (en) | Image compensation apparatus and method | |
| EP1494202A1 (en) | Display device, mobile terminal, and luminance control method in mobile terminal | |
| KR20100030978A (en) | Display apparatus and method of driving the same | |
| CN104021767A (en) | Gamma curve adjusting method, gamma voltage generator and display device | |
| JP4566176B2 (en) | Display drive circuit | |
| KR101967260B1 (en) | A method for reducing the power consumption of a monitor according to the state of a computer and the energy saving typed computer system using the same | |
| KR20070106413A (en) | Character highlighting control apparatus, display apparatus, highlighting display control method, and computer program | |
| KR20020032018A (en) | Liquid crystal display device with a function of adaptive brightness intensifier and driving apparatus and method for therefor | |
| US6396465B1 (en) | Device and method for displaying gray shades | |
| JP2003058123A (en) | Liquid crystal display device | |
| CN110534054B (en) | Display driving method and device, display device, storage medium and chip | |
| US11817030B2 (en) | Display apparatus and method of driving display panel using the same | |
| US20110216102A1 (en) | Method and apparatus for reducing power consumption in electronic device | |
| CN111477169A (en) | Brightness control method for display mode switching on O L ED panel | |
| JP2003108076A (en) | Organic electroluminescence display device and portable telephone set | |
| KR20170039783A (en) | Method of display apparatus | |
| KR100474314B1 (en) | Method for controlling power of mobile communication terminal | |
| CN111477171B (en) | Picture display method and picture display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 526070 Room 127, Building B, Zhaoqing Investment Development Co., Ltd., North Eight District, Guicheng New Town, Dinghu District, Zhaoqing City, Guangdong Province Applicant after: Guangdong Shenghe Microelectronics Co., Ltd Address before: 526070 Room 127, Building B, Zhaoqing Investment Development Co., Ltd., North Eight District, Guicheng New Town, Dinghu District, Zhaoqing City, Guangdong Province Applicant before: Guangdong Shenghe Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |
|
| RJ01 | Rejection of invention patent application after publication |