TW200525469A - Driving circuit of LED flat display and its driving method - Google Patents
Driving circuit of LED flat display and its driving method Download PDFInfo
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200525469 五、發明說明(1) 【發明所屬之技術領域】 一種發光二極體平面顯示器之驅動電路及其驅動方 法’尤指一種具有多種驅動模式之發光二極體平面顯示器 驅動電路及其驅動方法。 【先前技術】 隨著資訊科技的發展,發光二極體(LED)平面顯示器 逐漸成為電子應用產品中的主流,目前,大部份普遍的發 ^ 一極體平面顯示器常使用於廣告刊板、活動宣導刊板、 交通工具指示燈、大型戶外電視牆等等,藉由控制發光二 ,體平面顯示器發光所產生的動畫及文字可以達到廣告和 宣導的效果,並且可以作為交通燈具之警示作用,因此, 2:商品廣告、活動宣I、即時訊息的資料傳遞與顯示有 圃 動雷政古地园^ 白· πI光二極體平面顯示器之驅 Α 鬼圖。傳統之發光二極體平面顯示器驅動電路, 二3接一二描上驅動用V 22到顯示1 2°之複數列線"1、 R3::Rn)n), ( R1' 複數行線(Π、C2、C3... Cn) : ^曰片24到顯示器20之 些行線(Cb C2、C3…Crn ,用來供應資料訊號給該 杳钮sr Cn)。經由該掃描驅動晶W 9 9盥兮 貞枓驅動晶片24之控制動作,使㈣技=日日片22與為 的顯示單元202動作、發光。 接於列線與行線之間 因此,傳統之發光二極體羊 用該些列線(mm ό \ ”、、不σ驅動電路僅僅使 】線"1 R2 R3〜Rn)進行掃描動作並藉由該些200525469 V. Description of the invention (1) [Technical field to which the invention belongs] A driving circuit of a light emitting diode flat display and a driving method thereof'especially a light emitting diode flat display driving circuit having multiple driving modes and a driving method thereof . [Previous technology] With the development of information technology, light-emitting diode (LED) flat-panel displays have gradually become the mainstream in electronic application products. At present, most of them are commonly used. ^ A flat-panel display is often used in advertising boards, Event promotion bulletin boards, traffic lights, large outdoor TV walls, etc. By controlling the light emission, the animation and text generated by the flat-panel display can achieve the effect of advertising and publicity, and can be used as a warning of traffic lights Role, therefore, 2: commodity advertising, event announcement I, instant message data transmission and display of the ancient Thunder Park Gudiyuan ^ white · πI photodiode flat display driver Α ghost map. Traditional light-emitting diode flat display driver circuit, two-to-two-by-two driving V 22 to display 12 ° of complex column lines " 1, R3 :: Rn) n), (R1 'plural row lines ( Π, C2, C3 ... Cn): The lines (Cb C2, C3 ... Crn) from the film 24 to the display 20 are used to supply data signals to the button sr Cn). The wafer W 9 is driven by the scan 9 The control action of the driving chip 24 is to make the technology = Japanese film 22 and the display unit 202 act and emit light. It is connected between the column line and the row line. Therefore, the traditional light-emitting diode sheep uses this These column lines (mm, \, and σ drive circuits only use) lines " 1 R2 R3 ~ Rn) to perform scanning operations and use these
第5頁 200525469 五、發明說明(2) 行線(a、C2、C3··· Cn)做資料訊號的傳送,以進行發光 顯示。實際上,傳統之發光二極體平面顯示器卻缺之^彈 性的控制動作方式,以得到最佳的發光效率,所以在如芒 告刊板、活動宣導刊板、交通工具指示燈、大型戶外電^ 牆等等之實際使用場所上,並無法得到具有彈性、最和^ 、最省電及最有效率之發光驅動控制。 &濟 【發明内容】 有鑑於此,本發明提供一種發光二極 2::及其:動方法’其係可提供多種驅動V二 軀動發光二極體平面顯示器發光、顯示。 用以 驅動為電達路上Λ目Λ’/發明一種發光二極體平面顯示器之 :電路及其驅動方法,係分別連接列控制介面與 單元造姑^ ^幻入一線上。並利用控制處理 與行:面與行控制介面1以控制列控制介面 ,、仃控制介面之動作。 面/行晶片肖資料驅動晶片連接到列控制介 控制,:ί 以輸*掃描訊號與資料訊號,並根據 此行=卜早& t控㈣⑯訊號傳送到顯*器之該*列線與該 一订線上,以進行多種驅動模式。 述說明中,本發明之驅動模式係包括有: 楔ί::,進行掃描,同時行線輪入資料訊號。 ;莫式三 ♦式四 ' -行線進行掃描,@時列線輪入資料訊號。 列線輸入直流電源,同時行線接地。 列線輸入直流電源,同時行線依照控制訊號可選 _ 圓 第6頁 200525469Page 5 200525469 V. Description of the invention (2) Lines (a, C2, C3 ... Cn) are used to transmit data signals for light-emitting display. In fact, traditional light-emitting diode flat-panel displays lack flexible control action methods to obtain the best luminous efficiency. Therefore, such as in notice boards, event boards, vehicle indicators, large outdoor In practical places such as electric walls, etc., it is not possible to obtain the light emitting drive control with flexibility, harmony, energy saving, and efficiency. [Abstract] In view of this, the present invention provides a light emitting diode 2 :: and its method of movement ', which can provide a variety of driving V2 body light emitting diode flat panel light emitting, display. The circuit and the driving method for driving Λ mesh Λ ’on the electric road / inventing a light-emitting diode flat display are respectively connected to a column control interface and a unit fabrication line. And use the control processing and row: surface and row control interface 1 to control the row control interface, and control the action of the interface. The surface / row chip Xiao data driving chip is connected to the column control interface control: ί The input and scan signals and data signals are transmitted, and according to this line = 卜 早 & t 控 ㈣⑯ signal is transmitted to the display of the * column line and This one line can be used for multiple driving modes. In the description, the driving mode of the present invention includes: wedge ::, scans, and turns on the data signal at the same time. ; Mo style three ♦ style four '-line line scan, @ 时 列 线 turns into data signals. DC power is input to the column wires, and the row wires are grounded. Column line input DC power, while line line can be selected according to the control signal _ circle page 6 200525469
擇接地或浮接。 【實施方式】 為了冑貴審查委員能更進一步 定目的所採取之技術、手段及功效,w為達成預 明之詳細說明與附圖,相信本發 的本發 當可由此得-深入且具體之瞭解,然::附:夫 考與說明用,並非用來對本發明加以限制者。 棱仏> 考第二圖,係為本發明發光二極體平面顯示器之 ?方塊圖。如圖所示,顯示器10上係由縱橫交錯之 该些列線(m、R2、R3…Rn)以及該些行線(Cb C2、C3 =Cn)交織而成,每一組交錯之列線和行線可以用來控制 一顯不單元,例如列線R1和行線以可以用來控制顯示單元 102。再者,一列控制介面12與一行控制介面1樣分別連 接到該些列線(R卜R2、R3…Rn)與該些行線((:卜C2、 C3··· Cn),以及連接到一控制處理單元1 6。控制處理單元 1 6係傳送一模式控制訊號給該列控制介面丨2與該行控制介 面1 4 ’用以控制該列控制介面丨2與該行控制介面1 4之輸入 選擇切換。上述說明中該顯示單元係為一發光二極(LED )或為一有激發光二極體(0LED)。 上述說明中,一掃描驅動晶片1 8係連接到該列控制介 面1 2、該行控制介面1 4及該控制處理單元1 6,係接受控制 處理單元1 6之控制用以輸出一掃描訊號。以及,一資料驅 動晶片1 9係連接到該列控制介面1 2、該行控制介面1 4及該 控制處理單元1 6,係接受控制處理單元1 6之控制用以輸出Choose ground or floating. [Embodiment] The techniques, methods and effects adopted by the review committee to further determine the purpose, in order to achieve the detailed description and the drawings, I believe that the present invention can be obtained from this-in-depth and specific understanding Naturally :: Attachment: For examination and explanation, not for restricting the present invention. Ridge > Consider the second figure, which is a block diagram of a light emitting diode flat display of the present invention. As shown in the figure, the display 10 is formed by interleaving the column lines (m, R2, R3, ..., Rn) and the row lines (Cb C2, C3 = Cn). Each group of interlaced column lines The and row lines can be used to control a display unit, such as the column line R1 and the row lines can be used to control the display unit 102. Furthermore, a row of control interfaces 12 and a row of control interfaces are respectively connected to the column lines (R, R2, R3 ... Rn) and the row lines ((: C2, C3, ..., Cn)), and are connected to A control processing unit 16. The control processing unit 16 sends a mode control signal to the row control interface 丨 2 and the row control interface 1 4 ′ to control the row control interface 丨 2 and the row control interface 1 4 The input selection is switched. In the above description, the display unit is a light emitting diode (LED) or an excitation light diode (0LED). In the above description, a scan driving chip 18 is connected to the column control interface 1 2 The row control interface 14 and the control processing unit 16 are controlled by the control processing unit 16 to output a scanning signal. And a data-driven chip 19 is connected to the row of control interfaces 1 2. The line control interface 14 and the control processing unit 16 are under the control of the control processing unit 16 for output.
第7頁 200525469 五、發明說明(4) 一資料訊號。 單元更4一用電源担供應古單元17連接於控制介面12與控制處理 干’帛以提供直流電源到該列控制介面i 2並且供 :所萬,電力。電源供應單元17進而根據控制處理單= :达到該列控制介面12之模式控制訊號,用以上6 直流電源到該些列線(Rb R2、Rn)。 厅而之 ^青配合第二圖,參考第三圖,係根據本發明之第— K式電路示意圖,如圖所示,係'以一 “ 4發光二極體 2=器1〇為例。控制處理單元16傳送模式控制Λ 並控制列控制介面12,使之輸入選 1 嚴_、 机電源CV1,第一直流電源CV1係由電源供 片%,2 :。並且,控制處理單元1 6控制該掃描驅動ί ,列_ &二提供掃描訊號到列控制介面1 2。根據掃描訊^ 列控制介面1α 古、*兩 就 複的傳送至兮Γί將第一直流電源CV1之電力依序並且重 介面同1 ?,,使控之制Λ理單元16傳送模式控制訊號到該行控制 晶片Η係= ,料驅動晶片19。資料-動 並顯示了上C4),以提供顯示器10發光 上、、。δ明中,該資料訊號係為電流訊號。 ,Π說4明中,此時顯示器1 〇之驅動係為列線進行掃描 驅=由行線輪入資料訊號"sl、Is2、Is3、Is4): 明配口第一圖’參考第四圖,係根據本發明之第二驅Page 7 200525469 V. Description of the invention (4) A data signal. The unit 17 is connected to the control interface 12 and the control unit with a power supply. The unit 17 is used to provide DC power to the control interface i 2 and to provide power. The power supply unit 17 further according to the control processing order =: reaches the mode control signal of the row control interface 12, and uses the above 6 DC power to the row lines (Rb R2, Rn). Matching the second and third figures with reference to the third figure is a schematic diagram of the K-type circuit according to the present invention. As shown in the figure, the system uses a "4" light-emitting diode 2 = device 10 as an example. The control processing unit 16 transmits the mode control Λ and controls the column control interface 12 so that the input is selected as 1 _, the machine power supply CV1, and the first DC power supply CV1 is supplied by the power supply.%, 2: and the control processing unit 16 To control the scan driver, column_ & provides a scan signal to the column control interface 12. According to the scan signal, the column control interface 1α is transmitted to the control unit 1α and the two are repeatedly transmitted to the first DC power source CV1. The sequence and interface are the same, so that the control unit 16 transmits the mode control signal to the control chip of the line. The material drives the chip 19. The data is moved and displayed on C4) to provide the display 10 with light. Upper, upper, and lower δ, the data signal is a current signal., Π said that at 4 Ming, at this time the drive system of the display 10 is scanning by column lines = data signals are input by row and line " sl, Is2 , Is3, Is4): The first picture of the Ming port, with reference to the fourth picture, is the second drive according to the present invention.
200525469 五、發明說明(5) 動模式電路不意圖,如圖所示, 陣列之顯示器1 〇為例。控制處理單—了 4 X 4發光二極體 到該行控制介面1 4,並控制行控=6傳送模式控制訊號 切換到一接地零電位G。並且,卫面1 4,使之輸入選擇 描驅動晶片18,用以提供掃描訊处理單元I6控制該掃 的傳送至該些行線(π、C2、U、電位G依序並重複 同時,控制處理單元丨6傳送模。 介面12,使之輪入選擇切換 料"^ 訊號到該列控制 晶片19係提供資料訊號(Is卜貝I.15動晶片19,資料驅動 至該些列線(R卜R2、R3、R4),以^3、Is4),並傳送 顯示。 以使得顯示器1 0發光並 上述說明中,此時顯示器丨〇之 ,同時藉由列線輸入資料訊號(丨s |、:、、、仃線進行掃描 驅動模式。 、ls2、Is3、IS4)之 請配合第二圖,參考第五圖 動模式電路示意圖,如圖所示,係係以根—據/發明之第三驅 陣列之顯示器10為例。控制處理單元】x 3^先二極體 到該列控制介面12,並且控制列 =到:二直流電源…同時將第二直】吏二 力傳达至該些列線(m、r2、R3、R4),第二 ^200525469 V. Description of the invention (5) The circuit of the dynamic mode is not intended. As shown in the figure, the array display 10 is taken as an example. The control processing order-4 X 4 light-emitting diodes to the line control interface 14 and control line control = 6 transfer mode control signal to switch to a ground zero potential G. In addition, the guard surface 14 causes the input selection driving chip 18 to provide a scanning signal processing unit I6 to control the transmission of the scan to the line lines (π, C2, U, and potential G in sequence and repeat at the same time, control Processing unit 丨 6 transmission module. Interface 12, make it turn to choose switching materials " ^ signal to the row of control chips 19 is to provide data signals (Isbbe I.15 moves the chip 19, data is driven to the line Rb R2, R3, R4), ^ 3, Is4), and transmit the display. So that the display 10 is illuminated and in the above description, at this time the display 丨 〇, and at the same time input the data signal (丨 s | (: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ls2, Is3, and IS4) Please refer to the second diagram and the fifth diagram for the schematic diagram of the motion mode circuit. The display 10 of the three-wheel drive array is taken as an example. The control processing unit] x 3 ^ first diode to the control interface 12 of the column, and the control column = to: two DC power sources ... and the second straight line at the same time. These column lines (m, r2, R3, R4), the second ^
2係由電源供應單元1 7所提供。 a電源CV 八二?,控制處理單元16傳送模式控制訊號到該行控制 介面14’使之輸入選擇切換到接地零電位G或浮接點?,制並 第9頁 五、發明說明(6) 使得接地零電位G同時連接至該些行線(c卜C2、C3、C4 )。此時’顯示器1 0係為全發光狀態,並顯示。 上述說明中,此時顯示器1 〇之驅動係為列線輸入直流 電源,同時行線接地之驅動模式(係為全發光狀熊)。 動權請:雷合敗第Λ圖’參考第a圖,係根據本發明之、四驅 Ϊ 示,係以一“ 4發光二極體2 is provided by the power supply unit 17. a Power CV 82? , The control processing unit 16 transmits the mode control signal to the control interface 14 ′ of the row so that the input selection is switched to the ground zero potential G or the floating contact? 5. System description (6) The ground zero potential G is connected to the line lines (c, C2, C3, C4) at the same time. At this time, the 'display 10' is in a full light-emitting state and displayed. In the above description, the drive mode of the display 10 at this time is the column line input DC power supply, and the row line ground is the drive mode (system is full luminous bear). Please refer to Figure A for reference to Figure A, which is based on the four-wheel drive according to the present invention.
到該列==2例;;制處理單元16傳送模式控制訊號 切換到二,制列控制介面使之輸入選擇 時傳送至該將第二直流電讀之電力同 2係由電源供應單元17所提供。R3、R4) ’第二直流電源CV 第六圖所矛到接地零電位G或浮接點F,如 並且浮接點F連接/行線C1、C2、C3, 單元係不路止 線C4 ’此時’該行線C4連接之顧千 光。’、 行線C1、C2、C3連接之顯示單元係全發 電源上述同說時Y線::二^ 式。 線控制aK说可選擇接地或浮接之驅動模 接下來,介紹根據本發明發光二 ?方法。睛參考第七圖,係為本發明發 之驅 為之驅動方法流程圖。㉟方法體平面顯示 示器之最佳顯示模式;接著選=佳::—示: 200525469To the column == 2 examples; The processing mode control signal of the processing unit 16 is switched to two, and the control interface of the processing unit makes its input to be transmitted to the second DC electric power reading unit 2 provided by the power supply unit 17 . R3, R4) 'The second DC power source CV is connected to the ground zero potential G or the floating point F as shown in the sixth figure. If the floating point F is connected to the line C1, C2, C3, the unit is an endless line C4' At this time, Gu Qianguang connected to the line C4. ’, The display units connected to the line C1, C2, and C3 are all power generators, and the Y line :: two ^ type is used at the same time. The line control aK says that the driving mode can be grounded or floating. Next, the light emitting method according to the present invention will be described. Referring to the seventh figure, it is a flowchart of a driving method developed by the present invention. ㉟Method body plane display The best display mode of the display; then select = Good ::-Show: 200525469
五、發明說明(7) 式(S102) 然後 ’輸入掃描訊號至顯示器(S1 〇4);最 後,輸人資料訊號至顯示器(S1G6)。並^#顯示器係 為一發光二極體顯不器或為一有機發光二極體顯示器。 上述流程中,在選擇最佳之顯示模式(sl〇2)步驟 後,更接著有,供應一電源到至少一列線(sl〇5);最 後,輸入選擇訊號到至少一行線。 明一配。合第一圖,參考第七圖,在本發明發光二極體平 面顯示器之驅動方法中,係可以藉由控制處理單元i 6根據 顯示器1 0之規格、尺寸、大小及資料訊號來判斷顯示器i 〇 之最佳顯示模式,顯示模式係有,模式一:列線進行掃描 ,同時行線輸入資料訊號。模式二:行線進行掃描,同時 列線輸入資料訊號。模式三··列線輸入直流電源,同時行 線接地。模式四:列線輸入直流電源,同時行線依照控制 訊號可選擇接地或浮接。 接著,選擇上述說明中各個顯示模式中最佳之顯示模 j接然後,控制處理單元16控制掃描驅動晶片18用以輸出 I描汛旒,並且根據控制處理單元丨6所選擇的顯示模式 ’提供該掃描訊號至顯示器1 〇。 一 A最後/^控制處理單元1 6控制資料驅動晶片1 9用以輸出 二貝,訊號,並且根據控制處理單元丨6所選擇的顯示模 式’提供該資料訊號至顯示器1 〇。 上述說明中’當選擇最佳之顯示模式係為模式三、模 ^四時電源供應單元1 7係提供直流電源到該些列(R 1、 R3 Rn) °然後,控制處理單元丨6係輸入選擇訊號到V. Description of the invention (7) Formula (S102) Then ’input the scan signal to the display (S104); finally, input the data signal to the display (S1G6). The parallel display is a light emitting diode display or an organic light emitting diode display. In the above process, after the step of selecting the best display mode (s102), it is further followed by supplying a power source to at least one line (s105); finally, input the selection signal to at least one line. Mingyi match. In conjunction with the first figure and referring to the seventh figure, in the driving method of the light emitting diode flat display of the present invention, the display i can be judged by controlling the processing unit i 6 according to the specifications, size, size and data signals of the display 10 〇 The best display mode, the display mode is, mode one: column line scan, while line line input data signal. Mode 2: Scan by line and line, and input data signal by line. Mode III: The DC line power is input to the column wires, and the row wires are grounded. Mode 4: The column wires are input with DC power, and the row wires can be grounded or floating according to the control signal. Next, the best display mode in each display mode in the above description is selected, and then, the control processing unit 16 controls the scan driving chip 18 to output the image, and is provided according to the display mode selected by the control processing unit The scan signal goes to the display 10. A A final control processing unit 16 controls the data driving chip 19 to output two signals, and provides the data signal to the display 10 according to the display mode selected by the control processing unit 6. In the above description, when the best display mode is selected as mode three and mode four, the power supply unit 17 provides DC power to the columns (R 1, R3 Rn). Then, the control processing unit 丨 6 series inputs Select signal to
200525469 五、發明說明(8) 該些行線(C卜C2、C3··· Cn),係用以控制連接於該些行 線((:卜C2、C3…Cn)之顯示單元發光與顯示。 綜上所述,本發明之發光二極體平面顯示器之驅動電 路及其驅動方法係具有:列線進行掃描且同時行線輸入資 料訊號、行線進行掃描且同時列線輸入資料訊號、列線輸 入直流電源且同時行線接地及列線輸入直流電源且同時行 線依照控制訊號可選擇接地或浮接等驅動模式。 因此,本發明係可以改善傳統發光二極體平面顯示器 之缺乏彈性的發光驅動方式,並可以在如廣告刊板、活動 宣導刊板、交通工具指示燈、大型戶外電視牆等等之實際 使用場所上,得到具有彈性、最經濟、最省電及最有效率 之發光控制。 惟,上述所揭露之圖式、說明,僅為本發明之實施例 而已,凡精于此項技藝者當可依據上述之說明作其他種種 之改良,而這些改變仍屬於本發明之發明精神及以下所界 定之專利範圍中。200525469 V. Description of the invention (8) The lines (C Bu C2, C3 ... Cn) are used to control the light emission and display of the display unit connected to the lines ((: Bu C2, C3 ... Cn)). In summary, the driving circuit and driving method of the light-emitting diode flat display of the present invention include: scanning by column lines and inputting data signals at the same time, scanning by row lines and inputting data signals at the same time by columns and columns The line input DC power supply and the line line ground and the column line input DC power supply and the line line can select the driving mode such as ground or floating according to the control signal. Therefore, the invention can improve the lack of flexibility of the traditional light-emitting diode flat display. The light-emitting driving method can be used in practical places such as advertising boards, event promotion boards, vehicle indicators, large outdoor TV walls, etc. Luminous control. However, the drawings and descriptions disclosed above are only examples of the present invention, and those skilled in this art can make other modifications based on the above descriptions. These changes are still within the spirit of the present invention and the scope of patents defined below.
第12頁 200525469 圖式簡單說明 第一圖係為習知發光二極體平面顯示器之驅動電路方塊 圖; 第二圖係為本發明發光二極體平面顯示器之驅動電路方塊 圖; 第三圖係根據本發明之第一驅動模式電路示意圖; 第四圖係根據本發明之第二驅動模式電路示意圖; 第五圖係根據本發明之第三驅動模式電路示意圖; 第六圖係根據本發明之第四驅動模式電路示意圖;及 第七圖係為本發明發光二極體平面顯示器之驅動方法流程 圖。 【圖號說明】 習知: 2 0顯示器 2 0 2顯示單元 2 2掃描驅動晶片 2 4資料驅動晶片 Rl、R2、R3··· Rη該些列線 Cl、C2、C3··· Cη該些行線 本發明 1 0顯示器 1 2列控制介面 1 4行控制介面 1 6控制處理單元 1 7電源供應單元Page 12 200525469 Brief description of the diagram The first diagram is a block diagram of a driving circuit of a conventional light emitting diode flat display; the second diagram is a block diagram of a driving circuit of a light emitting diode flat display of the present invention; the third diagram is A schematic diagram of a first driving mode circuit according to the present invention; a fourth diagram is a schematic diagram of a second driving mode circuit according to the present invention; a fifth diagram is a schematic diagram of a third driving mode circuit according to the present invention; a sixth diagram is according to the first The schematic diagram of the four driving mode circuit; and the seventh figure is a flowchart of the driving method of the light emitting diode flat display of the present invention. [Illustration of drawing number] Knowing: 2 0 display 2 0 2 display unit 2 2 scanning driving chip 2 4 data driving chip R1, R2, R3 ... Rη these column lines Cl, C2, C3 ... Cη these Row and line of the invention 10 display 1 2 column control interface 1 4 row control interface 1 6 control processing unit 1 7 power supply unit
200525469200525469
第14頁Page 14
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US10380953B2 (en) | 2013-01-24 | 2019-08-13 | E Ink Holdings Inc. | Electrophoretic display and method for driving panel thereof |
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