TW202307820A - Method of avoiding screen burn-in, and display and information processing device using the same including a dynamic display data increment unit, an addition unit, and a driving unit - Google Patents
Method of avoiding screen burn-in, and display and information processing device using the same including a dynamic display data increment unit, an addition unit, and a driving unit Download PDFInfo
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Abstract
Description
本發明係有關於顯示器,特別是關於一種避免顯示器產生螢幕烙印現象的方法。The present invention relates to a display, in particular to a method for avoiding screen burn-in of the display.
一般的顯示器,例如LED顯示器、OLED顯示器、或LCD 顯示器,皆有螢幕烙印的問題。螢幕烙印係指在螢幕上長時間持續顯示相同的圖案(例如,電視頻道標誌, 螢幕保護程式等)後所留下的不可回復之圖案痕跡。Common displays, such as LED displays, OLED displays, or LCD displays, all suffer from screen burn-in problems. Screen burn-in refers to the irreversible pattern marks left after the same pattern (eg, TV channel logo, screen saver, etc.) is continuously displayed on the screen for a long time.
為解決螢幕烙印的問題,其中一個解決方案是每隔一段時間改變圖案的整體或局部的顯示位置以避免相同像素過度操作。然而,由於人眼相當容易察覺該圖案的位置變動現象,若間隔時間太短,畫面看起來會像是在跳動。另一個解決方案是記錄每一個像素點的亮度及操作時間,並依所述的亮度及操作時間對每個像素點進行亮度補償,然而,此方案卻有需要龐大的硬體及軟體資源以記錄亮度資訊及操作時間的缺點。To solve the problem of screen burn-in, one solution is to change the overall or partial display position of the pattern at regular intervals to avoid excessive operation of the same pixel. However, since the human eye is quite easy to detect the positional fluctuation of the pattern, if the interval time is too short, the picture will appear to be jumping. Another solution is to record the brightness and operating time of each pixel, and perform brightness compensation for each pixel according to the brightness and operating time. However, this solution requires huge hardware and software resources to record Disadvantages of brightness information and operating time.
為解決上述的問題,本領域亟需一新穎的螢幕烙印避免方法。In order to solve the above problems, there is an urgent need in the art for a novel method for avoiding screen burn-in.
本發明之一目的在於揭露一種螢幕烙印避免方法,其能夠在不改變一幀圖案在一螢幕上的顯示位置,只動態改變其像素的顯示顏色或灰階的情況下,有效解決該螢幕在長時間顯示一靜態圖案時所可能產生的螢幕烙印問題。One purpose of the present invention is to disclose a method for avoiding screen burn-in, which can effectively solve the problem of long-term screen burn-in without changing the display position of a frame pattern on a screen and only dynamically changing the display color or grayscale of its pixels. A possible screen burn-in issue when displaying a static pattern at the time.
本發明之另一目的在於揭露一種螢幕烙印避免方法,其可藉由一循序或隨機的方式在一預定時間內產生多個不同的顯示增量值以使各像素在該預定時間內能夠有多個不同的顯示狀態,從而有效避免螢幕產生烙印現象。Another object of the present invention is to disclose a method for avoiding screen burn-in, which can generate a plurality of different display increment values within a predetermined time in a sequential or random manner so that each pixel can have multiple display increments within the predetermined time. different display states, thus effectively avoiding screen burn-in.
本發明之又一目的在於揭露一種螢幕烙印避免方法,其能夠藉由一簡潔的電路結構有效避免螢幕產生烙印現象。Another object of the present invention is to disclose a method for avoiding screen burn-in, which can effectively prevent screen burn-in through a simple circuit structure.
為達前述目的,一種螢幕烙印避免方法乃被提出,其包含:To achieve the aforementioned purpose, a method for avoiding screen burn-in is proposed, which includes:
利用一動態顯示資料增量單元執行一時變增量產生操作以產生一顯示增量值;using a dynamic display data increment unit to perform a time-varying increment generation operation to generate a display increment value;
利用一加法單元使一幀顯示資料之各像素資料均與該顯示增量值相加以各獲得一輸出資料 ;以及Using an addition unit to add each pixel data of a frame of display data to the display increment value to obtain an output data; and
利用一驅動單元依該輸出資料產生一類比電壓以驅動一像素陣列。A driving unit is used to generate an analog voltage to drive a pixel array according to the output data.
在可能的實施例中,該時變增量產生操作可為以一循序或隨機的方式在一預定時間內產生多個不同的所述顯示增量值。In a possible embodiment, the time-varying increment generation operation may generate a plurality of different display increment values within a predetermined time in a sequential or random manner.
在可能的實施例中,所述像素資料的格式可為RGB、YUV、HSV、HSL或YCbCr。In a possible embodiment, the format of the pixel data may be RGB, YUV, HSV, HSL or YCbCr.
在一實施例中,當所述像素資料的格式為RGB時,該驅動單元係直接依所述輸出資料產生所述類比電壓。In one embodiment, when the format of the pixel data is RGB, the driving unit generates the analog voltage directly according to the output data.
在可能的實施例中,當所述像素資料的格式為YUV、HSV、HSL或YCbCr時,該驅動單元係先對所述輸出資料進行一對應的色域轉換運算以使所述輸出資料自YUV、HSV、HSL或YCbCr格式的資料轉成一RGB輸出資料,再依該RGB輸出資料產生所述類比電壓。In a possible embodiment, when the format of the pixel data is YUV, HSV, HSL or YCbCr, the drive unit first performs a corresponding color gamut conversion operation on the output data to make the output data from YUV , HSV, HSL or YCbCr format data into an RGB output data, and then generate the analog voltage according to the RGB output data.
為達前述目的,本發明進一步提出一種顯示驅動電路,其包括一動態顯示資料增量單元、一加法單元及一驅動單元以執行一螢幕烙印避免方法,該方法包括:In order to achieve the aforementioned purpose, the present invention further proposes a display driving circuit, which includes a dynamic display data increment unit, an addition unit and a drive unit to perform a screen burn-in avoidance method, the method comprising:
利用該動態顯示資料增量單元執行一時變增量產生操作以產生一顯示增量值;Using the dynamic display data increment unit to perform a time-varying increment generating operation to generate a display increment value;
利用該加法單元使一幀顯示資料之各像素資料均與該顯示增量值相加以各獲得一輸出資料 ;以及Using the addition unit to add each pixel data of a frame of display data to the display increment value to obtain an output data; and
利用該驅動單元依該輸出資料產生一類比電壓以驅動一像素陣列。The driving unit is used to generate an analog voltage to drive a pixel array according to the output data.
在可能的實施例中,該時變增量產生操作可為以一循序或隨機的方式在一預定時間內產生多個不同的所述顯示增量值。In a possible embodiment, the time-varying increment generation operation may generate a plurality of different display increment values within a predetermined time in a sequential or random manner.
在可能的實施例中,所述像素資料的格式可為RGB、YUV、HSV、HSL或YCbCr。In a possible embodiment, the format of the pixel data may be RGB, YUV, HSV, HSL or YCbCr.
在一實施例中,當所述像素資料的格式為RGB時,該驅動單元係直接依所述輸出資料產生所述類比電壓。In one embodiment, when the format of the pixel data is RGB, the driving unit generates the analog voltage directly according to the output data.
在可能的實施例中,當所述像素資料的格式為YUV、HSV、HSL或YCbCr時,該驅動單元係先對所述輸出資料進行一對應的色域轉換運算以使所述輸出資料自YUV、HSV、HSL或YCbCr格式的資料轉成一RGB輸出資料,再依該RGB輸出資料產生所述類比電壓。In a possible embodiment, when the format of the pixel data is YUV, HSV, HSL or YCbCr, the drive unit first performs a corresponding color gamut conversion operation on the output data to make the output data from YUV , HSV, HSL or YCbCr format data into an RGB output data, and then generate the analog voltage according to the RGB output data.
為達前述目的,本發明進一步提出一種顯示器,其具有如前述之顯示驅動電路及像素陣列。To achieve the aforementioned purpose, the present invention further provides a display, which has the aforementioned display driving circuit and pixel array.
在可能的實施例中,該像素陣列可為液晶像素陣列、微發光二極體像素陣列、迷你發光二極體像素陣列、量子點發光二極體像素陣列或有機發光二極體像素陣列。In a possible embodiment, the pixel array may be a liquid crystal pixel array, a micro light emitting diode pixel array, a mini light emitting diode pixel array, a quantum dot light emitting diode pixel array or an organic light emitting diode pixel array.
為達前述目的,本發明進一步提出一種資訊處理裝置,其具有一中央處理單元及如前述之顯示器,其中,該中央處理單元係用以與該顯示驅動電路通信。To achieve the aforementioned purpose, the present invention further proposes an information processing device, which has a central processing unit and the aforementioned display, wherein the central processing unit is used to communicate with the display driving circuit.
在可能的實施例中,所述之資訊處理裝置可為一智慧型手機、一可攜式電腦或一車載電腦。In a possible embodiment, the information processing device may be a smart phone, a portable computer or a vehicle computer.
為使 貴審查委員能進一步瞭解本發明之結構、特徵及其目的,茲附以圖式及較佳具體實施例之詳細說明如後。In order to enable your review committee members to further understand the structure, features and purpose of the present invention, drawings and detailed descriptions of preferred specific embodiments are hereby attached.
本發明的原理在於:Principle of the present invention is:
不改變一幀圖案在一螢幕上的顯示位置,只動態改變其像素的顯示顏色或灰階,具體而言,本發明係藉由使一幀圖案在一預定時間內呈現多種顏色組態或灰階組態,而避免在該螢幕上顯示一靜態圖案時,在該螢幕上長時間持續以一相同顯示資料組態顯示該靜態圖案,從而改善螢幕烙印的現象。The display position of a frame pattern on a screen is not changed, only the display color or gray scale of its pixels is dynamically changed. Specifically, the present invention presents multiple color configurations or grayscales within a predetermined time by making a frame pattern To avoid displaying a static pattern on the screen, the static pattern will be continuously displayed on the screen with the same display data configuration for a long time, thereby improving the phenomenon of screen burn-in.
請參照圖1,其繪示本發明之螢幕烙印避免方法之一實施例的流程圖。如圖1所示,該螢幕烙印避免方法包括:利用一動態顯示資料增量單元執行一時變增量產生操作以產生一顯示增量值 (步驟a);利用一加法單元使一幀顯示資料之各像素資料均與該顯示增量值相加以各獲得一輸出資料 (步驟b);以及利用一驅動單元依該輸出資料產生一類比電壓以驅動一像素陣列(步驟c)。Please refer to FIG. 1 , which shows a flowchart of an embodiment of the screen burn-in avoidance method of the present invention. As shown in Figure 1, the method for avoiding screen burn-in includes: using a dynamic display data increment unit to perform a time-varying increment generation operation to generate a display increment value (step a); utilizing an addition unit to make a frame of display data Each pixel data is added to the display increment value to obtain an output data (step b); and a driving unit is used to generate an analog voltage according to the output data to drive a pixel array (step c).
在步驟a中,該時變增量產生操作係以一循序或隨機的方式在一預定時間內產生多個不同的所述顯示增量值。In step a, the time-varying increment generating operation is to generate a plurality of different display increment values within a predetermined time in a sequential or random manner.
在步驟b中,所述像素資料的格式可為RGB、YUV、HSV、HSL或YCbCr。In step b, the format of the pixel data may be RGB, YUV, HSV, HSL or YCbCr.
在步驟c中,當所述像素資料的格式為RGB時,該驅動單元係直接依所述輸出資料產生所述類比電壓;當所述像素資料的格式為YUV、HSV、HSL或YCbCr時,該驅動單元係先對所述輸出資料進行一對應的色域轉換運算以使所述輸出資料自YUV、HSV、HSL或YCbCr格式的資料轉成一RGB輸出資料,再依該RGB輸出資料產生所述類比電壓。另外,所述像素陣列可為液晶像素陣列、微發光二極體像素陣列、迷你發光二極體像素陣列、量子點發光二極體像素陣列或有機發光二極體像素陣列。In step c, when the format of the pixel data is RGB, the drive unit generates the analog voltage directly according to the output data; when the format of the pixel data is YUV, HSV, HSL or YCbCr, the drive unit The drive unit first performs a corresponding color gamut conversion operation on the output data to convert the output data from YUV, HSV, HSL or YCbCr format data into an RGB output data, and then generates the RGB output data according to the RGB output data. Analog voltage. In addition, the pixel array may be a liquid crystal pixel array, a micro light emitting diode pixel array, a mini light emitting diode pixel array, a quantum dot light emitting diode pixel array or an organic light emitting diode pixel array.
具體而言,假設一靜態圖案的顯示時間超過32幀,而該靜態圖案之一(R、G、B)像素資料為(253、253、253),則在32幀的顯示期間內,該(R、G、B)像素資料會在每進入下一幀顯示期間時加上一顯示增量值,而該顯示增量值係由多個預定數值中擇一之數值。Specifically, assuming that the display time of a static pattern exceeds 32 frames, and the pixel data of one (R, G, B) of the static pattern is (253, 253, 253), then during the display period of 32 frames, the ( R, G, B) pixel data will add a display increment value every time it enters the next frame display period, and the display increment value is a value selected from a plurality of predetermined values.
例如,請參照表一,該顯示增量值的預定數值有+1和-1兩個,而其變化的規則為漸減然後漸增。
表一
例如,請參照表二,該顯示增量值的預定數值有+1和-1兩個,而其變化的規則為以先選4個-1再選4個+1為一週期重複調變。
表二
另外,假設該顯示增量值的預定數值有+2和-2兩個,則其變化的規則亦可為以隨機(或偽隨機)的方式以-2或+2調變顯示資料。In addition, assuming that there are +2 and -2 predetermined values of the display increment value, the change rule may also be to modulate the display data by -2 or +2 in a random (or pseudo-random) manner.
另外,R、G、B的數值可以共同採用一規則決定顯示增量值或各自採用一規則決定顯示增量值。In addition, the values of R, G, and B can jointly adopt a rule to determine the display incremental value or each use a rule to determine the display incremental value.
亦即,依上述的方法,一顯示器即可在顯示一靜態圖案時,在不變動該靜態圖案在一螢幕上的位置的情況下,藉由使其各像素的顯示狀態均在多個顯示顏色或灰階中輪動,而延緩或防制螢幕烙印現象 的發生。That is to say, according to the above method, when a display is displaying a static pattern, the display state of each pixel can be displayed in multiple display colors without changing the position of the static pattern on a screen. Or rotate in the gray scale, so as to delay or prevent the phenomenon of screen burn-in.
依上述的說明,本發明提出採用所述螢幕烙印避免方法之顯示驅動電路。請參照圖2,其繪示本發明之顯示驅動電路之一實施例的方塊圖。如圖2所示,一顯示驅動電路100包括一動態顯示資料增量單元110、一加法單元120及一驅動單元130,其中,動態顯示資料增量單元110係用以執行一時變增量產生操作以產生一顯示增量值D
INC;加法單元120係用以使一幀顯示資料之各像素資料D
PIX均與該顯示增量值D
INC相加以各獲得一輸出資料D
OUT;以及驅動單元130係用以依該輸出資料D
OUT產生一類比電壓V
A以驅動一像素陣列140。
According to the above description, the present invention proposes a display driving circuit using the screen burn-in avoidance method. Please refer to FIG. 2 , which shows a block diagram of an embodiment of the display driving circuit of the present invention. As shown in FIG. 2, a
於操作時,顯示驅動電路100所執行的所述螢幕烙印避免方法包括:In operation, the screen burn-in avoidance method performed by the
(一)使動態顯示資料增量單元110執行該時變增量產生操作以產生顯示增量值 D
INC,其中,該時變增量產生操作可為以一循序或隨機的方式在一預定時間內產生多個不同的所述顯示增量值D
INC,其中,該循序的方式可為利用一計時器週期性地產生一觸發信號,並依每一所述觸發信號產生一所述顯示增量值D
INC,且在時間上任兩個相鄰的所述顯示增量值D
INC均不相同;以及該隨機的方式可為利用一偽隨機數生成器產生所述的顯示增量值D
INC。
(1) Make the dynamic display
(二)使加法單元120對像素資料D
PIX與顯示增量值D
INC進行一加法運算以獲得輸出資料D
OUT,其中,像素資料D
PIX的格式可為RGB、YUV、HSV、HSL或YCbCr。
(2) Make the
(三)使驅動單元130依輸出資料D
OUT產生類比電壓V
A以驅動像素陣列140,其中,當像素資料D
PIX的格式為RGB時,驅動單元130係直接依輸出資料D
OUT產生類比電壓V
A;當像素資料D
PIX的格式為YUV、HSV、HSL或YCbCr時,驅動單元130係先對輸出資料D
OUT進行一對應的色域轉換運算以使輸出資料D
OUT自YUV、HSV、HSL或YCbCr格式的資料轉成一RGB輸出資料,再依該RGB輸出資料產生類比電壓V
A。
(3) Make the
另外,像素陣列140可為液晶像素陣列、微發光二極體像素陣列、迷你發光二極體像素陣列、量子點發光二極體像素陣列或有機發光二極體像素陣列。In addition, the
依上述的說明,本發明進一步提出一種採用所述螢幕烙印避免方法之顯示器。請參照圖3,其繪示本發明之顯示器之一實施例的方塊圖。如圖3所示,一顯示器200具有一顯示驅動電路210及一像素陣列220,其中,顯示驅動電路210係由顯示驅動電路100實現,且像素陣列220係由像素陣列140實現。According to the above description, the present invention further proposes a display using the method for avoiding screen burn-in. Please refer to FIG. 3 , which shows a block diagram of an embodiment of the display of the present invention. As shown in FIG. 3 , a
依上述的說明,本發明進一步揭示一種資訊處理裝置。請參照圖4,其繪示本發明之資訊處理裝置之一實施例的方塊圖。如圖4所示,一資訊處理裝置300具有一中央處理單元310及一顯示器320,其中,顯示器320係由顯示器200實現,且該中央處理單元310係用以與顯示驅動電路210通信。According to the above description, the present invention further discloses an information processing device. Please refer to FIG. 4 , which shows a block diagram of an embodiment of an information processing device of the present invention. As shown in FIG. 4 , an
另外,在可能的實施例中,該資訊處理裝置300可為一智慧型手機、一可攜式電腦或一車載電腦。In addition, in a possible embodiment, the
藉由前述所揭露的設計,本發明乃具有以下的優點:With the design disclosed above, the present invention has the following advantages:
1.本發明的螢幕烙印避免方法能夠在不改變一幀圖案在一螢幕上的顯示位置,只動態改變其像素的顯示顏色或灰階的情況下,有效解決該螢幕在長時間顯示一靜態圖案時所可能產生的螢幕烙印問題。1. The method for avoiding screen burn-in of the present invention can effectively solve the problem that the screen displays a static pattern for a long time without changing the display position of a frame pattern on the screen and only dynamically changing the display color or gray scale of its pixels. The screen burn-in problem that may occur when
2.本發明的螢幕烙印避免方法可藉由一循序或隨機的方式在一預定時間內產生多個不同的顯示增量值以使各像素在該預定時間內能夠有多個不同的顯示狀態,從而有效避免螢幕產生烙印現象。2. The screen burn-in avoidance method of the present invention can generate a plurality of different display increment values within a predetermined time in a sequential or random manner so that each pixel can have a plurality of different display states within the predetermined time, Thereby effectively avoiding screen burn-in phenomenon.
3.本發明的螢幕烙印避免方法能夠藉由一簡潔的電路結構有效避免螢幕產生烙印現象。3. The method for preventing screen burn-in of the present invention can effectively prevent screen burn-in by a simple circuit structure.
本案所揭示者,乃較佳實施例,舉凡局部之變更或修飾而源於本案之技術思想而為熟習該項技藝之人所易於推知者,俱不脫本案之專利權範疇。What is disclosed in this case is a preferred embodiment. For example, any partial changes or modifications derived from the technical ideas of this case and easily deduced by those who are familiar with the technology are within the scope of the patent right of this case.
綜上所陳,本案無論目的、手段與功效,皆顯示其迥異於習知技術,且其首先發明合於實用,確實符合發明之專利要件,懇請 貴審查委員明察,並早日賜予專利俾嘉惠社會,是為至禱。To sum up, regardless of the purpose, means and efficacy of this case, it shows that it is very different from the conventional technology, and its first invention is practical, and it does meet the patent requirements of the invention. I implore your review committee to understand it clearly and grant a patent as soon as possible. Society is for the Most Prayer.
100:顯示驅動電路 110:動態顯示資料增量單元 120:加法單元 130:驅動單元 140:像素陣列 200:顯示器 210:顯示驅動電路 220:像素陣列 300:資訊處理裝置 310:中央處理單元 320:顯示器 步驟a:利用一動態顯示資料增量單元執行一時變增量產生操作以產生一顯示增量值。 步驟b:利用一加法單元使一幀顯示資料之各像素資料均與該顯示增量值相加以各獲得一輸出資料。 步驟c:利用一驅動單元依該輸出資料產生一類比電壓以驅動一像素陣列。 100: display drive circuit 110:Dynamic display data incremental unit 120: Addition unit 130: drive unit 140: pixel array 200: display 210: Display drive circuit 220: pixel array 300: information processing device 310: central processing unit 320: display Step a: Utilize a dynamic display data increment unit to perform a time-varying increment generation operation to generate a display increment value. Step b: using an adding unit to add each pixel data of a frame of display data to the display increment value to obtain an output data respectively. Step c: using a driving unit to generate an analog voltage according to the output data to drive a pixel array.
圖1繪示本發明之螢幕烙印避免方法之一實施例的流程圖。 圖2繪示本發明之顯示驅動電路之一實施例的方塊圖。 圖3繪示本發明之顯示器之一實施例的方塊圖。 圖4繪示本發明之資訊處理裝置之一實施例的方塊圖。 FIG. 1 shows a flow chart of an embodiment of the screen burn-in avoidance method of the present invention. FIG. 2 is a block diagram of an embodiment of a display driving circuit of the present invention. FIG. 3 shows a block diagram of an embodiment of the display of the present invention. FIG. 4 is a block diagram of an embodiment of an information processing device of the present invention.
步驟a:利用一動態顯示資料增量單元執行一時變增量產生操作以產生一顯示增量值 Step a: Utilize a dynamic display data increment unit to perform a time-varying increment generation operation to generate a display increment value
步驟b:利用一加法單元使一幀顯示資料之各像素資料均與該顯示增量值相加以各獲得一輸出資料 Step b: using an addition unit to add each pixel data of a frame of display data to the display increment value to obtain an output data respectively
步驟c:利用一驅動單元依該輸出資料產生一類比電壓以驅動一像素陣列 Step c: using a driving unit to generate an analog voltage according to the output data to drive a pixel array
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