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TWI778864B - Gate driving circuit and display panel - Google Patents

Gate driving circuit and display panel Download PDF

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Publication number
TWI778864B
TWI778864B TW110142297A TW110142297A TWI778864B TW I778864 B TWI778864 B TW I778864B TW 110142297 A TW110142297 A TW 110142297A TW 110142297 A TW110142297 A TW 110142297A TW I778864 B TWI778864 B TW I778864B
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transistor
signal
light
emitting
node
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TW110142297A
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TW202320053A (en
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吳佳恩
李明賢
張書瀚
戴俊翔
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友達光電股份有限公司
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Priority to CN202210624332.1A priority patent/CN114882828B/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/0267Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays

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  • 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)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Road Signs Or Road Markings (AREA)
  • Control Of El Displays (AREA)

Abstract

A gate driving circuit and a panel are disclosed. An n-th shift register of the gate driving circuit includes an emitting signal generating circuit, an emitting signal controlling circuit, a reset signal generating circuit, and a reset signal controlling circuit. The emitting signal generating circuit has a node outputting an emitting signal to a pixel array. The emitting signal controlling circuit and the reset signal generating circuit are coupled to the node. During a first reset period, the reset signal generating circuit generates an enabled resetting signal in response to the emitting signal. During a second reset period, the emitting signal controlling circuit disables the resetting signal in response to the emitting signal.

Description

閘極驅動電路以及顯示面板Gate drive circuit and display panel

本發明是有關於一種閘極驅動電路以及顯示面板,特別是關於一種能夠減少所佔用空間的閘極驅動電路以及顯示面板。 The present invention relates to a gate driving circuit and a display panel, and more particularly, to a gate driving circuit and a display panel which can reduce the occupied space.

一般而言,顯示面板中的閘極驅動電路輸出發光信號來驅動畫素。同時,發光信號會配合重置信號來一起使畫素發光或不發光。然而,目前用來產生重置信號的電路與閘極驅動電路分別受控於不同的控制信號。因此當設置多個畫素來平衡變異的發光效率時,也需要設置多個控制電路來對應控制重置信號以及發光信號,而使顯示面板的可配置電路空間變少且不利於零邊框設計的顯示面板。 Generally speaking, a gate driving circuit in a display panel outputs a light-emitting signal to drive pixels. At the same time, the light-emitting signal will cooperate with the reset signal to make the pixel light up or not. However, the current circuit for generating the reset signal and the gate driving circuit are controlled by different control signals. Therefore, when multiple pixels are set to balance the variable luminous efficiency, it is also necessary to set multiple control circuits to control the reset signal and the luminous signal correspondingly, which reduces the configurable circuit space of the display panel and is not conducive to the display of the zero-frame design. panel.

本發明實施例提供一種閘極驅動電路,能夠增加可配置於顯示面板上的電路空間。 Embodiments of the present invention provide a gate driving circuit, which can increase the circuit space that can be configured on a display panel.

本發明實施例的閘極驅動電路具有多級移位暫存電路。第n級的移位暫存電路包括發光信號產生電路、發光信號控制電 路、重置信號產生電路以及重置信號控制電路。發光信號產生電路具有第一節點輸出發光信號至畫素陣列。在第一發光階段至第二發光階段的期間內,發光信號產生電路致能發光信號。發光信號控制電路耦接於第一節點。在第一重置階段至第二重置階段的期間內,發光信號控制電路維持發光信號的電壓準位為禁能的電壓準位。重置信號產生電路耦接於第一節點。在第一重置階段期間內,重置信號產生電路反應於發光信號來產生被致能的重置信號。重置信號控制電路耦接於發光信號控制電路以及重置信號產生電路。在第二重置階段期間內,重置信號控制電路反應於發光信號來使重置信號被禁能。 The gate driving circuit of the embodiment of the present invention has a multi-stage shift temporary storage circuit. The shift temporary storage circuit of the nth stage includes a light-emitting signal generating circuit, a light-emitting signal control circuit circuit, a reset signal generating circuit and a reset signal control circuit. The light-emitting signal generating circuit has a first node to output the light-emitting signal to the pixel array. During the period from the first light-emitting stage to the second light-emitting stage, the light-emitting signal generating circuit enables the light-emitting signal. The lighting signal control circuit is coupled to the first node. During the period from the first reset phase to the second reset phase, the lighting signal control circuit maintains the voltage level of the lighting signal as a disabled voltage level. The reset signal generating circuit is coupled to the first node. During the first reset phase, the reset signal generating circuit generates an enabled reset signal in response to the light-emitting signal. The reset signal control circuit is coupled to the lighting signal control circuit and the reset signal generating circuit. During the second reset phase, the reset signal control circuit is responsive to the lighting signal to disable the reset signal.

本發明實施例另提供一種顯示面板。顯示面板包括畫素陣列以及上述實施例的閘極驅動電路。閘極驅動電路耦接於畫素陣列。 Embodiments of the present invention further provide a display panel. The display panel includes a pixel array and the gate driving circuit of the above embodiment. The gate driving circuit is coupled to the pixel array.

基於上述,本發明實施例的閘極驅動電路及顯示面板是依據發光信號來產生重置信號。如此一來,用來產生發光信號的電路以及用來產生重置信號的電路被整合在一起,閘極驅動電路及顯示面板不需要另外設置控制電路來產生重置信號,以減少閘極驅動電路本身所佔用的電路空間而增加顯示面板上可配置的電路空間。 Based on the above, the gate driving circuit and the display panel according to the embodiments of the present invention generate the reset signal according to the light-emitting signal. In this way, the circuit for generating the light-emitting signal and the circuit for generating the reset signal are integrated, and the gate driving circuit and the display panel do not need to be additionally provided with a control circuit to generate the reset signal, so as to reduce the number of gate driving circuits. The circuit space occupied by itself increases the configurable circuit space on the display panel.

為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。 In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

100、500:顯示面板 100, 500: Display panel

110、210:發光信號產生電路 110, 210: Lighting signal generating circuit

120、220:發光信號控制電路 120, 220: Lighting signal control circuit

130、230:重置信號產生電路 130, 230: reset signal generating circuit

140、240:重置信號控制電路 140, 240: reset signal control circuit

C1、C2:電容器 C1, C2: capacitors

CK:時脈信號 CK: clock signal

EM(n+1):後級發光信號 EM(n+1): Post-stage lighting signal

EM(n-1):前級發光信號 EM(n-1): Pre-stage luminous signal

EM(1)、EM(2)、EM(n):發光信號 EM(1), EM(2), EM(n): luminescence signal

GC:閘極驅動電路 GC: gate drive circuit

GC_1、GC_2、GC_n:移位暫存電路 GC_1, GC_2, GC_n: Shift temporary storage circuit

ND1、ND2、ND3、ND4:節點 ND1, ND2, ND3, ND4: Nodes

P(n):第一控制信號 P(n): first control signal

P(n+1):後級第一控制信號 P(n+1): The first control signal of the latter stage

P(n-1):前級第一控制信號 P(n-1): The first control signal of the previous stage

PEM1、PEM2、PRT1、PRT2:期間 PEM1, PEM2, PRT1, PRT2: Period

PXL:畫素陣列 PXL: pixel array

PXL_1、PXL_2:子畫素陣列 PXL_1, PXL_2: Subpixel array

Q(n):第二控制信號 Q(n): the second control signal

R:電阻器 R: Resistor

RST(1)、RST(2)、RST(n):重置信號 RST(1), RST(2), RST(n): reset signal

T1、T2、T3、T4、T5、T6、T7、T8、T9、T10、T11、T12、T13:電晶體 T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13: Transistor

VGH1、VPH:禁能電壓準位 VGH1, VPH: disable voltage level

VGL、VGH:電壓信號 VGL, VGH: voltage signal

VGL1、VGL2、VPL:致能電壓準位 VGL1, VGL2, VPL: enable voltage level

圖1A是依據本發明一實施例所繪示的顯示面板的方塊圖。 FIG. 1A is a block diagram of a display panel according to an embodiment of the present invention.

圖1B是依據本發明圖1A實施例所繪示的第n級的移位暫存電路的方塊圖。 FIG. 1B is a block diagram of the n-th stage of the shift register circuit according to the embodiment of FIG. 1A of the present invention.

圖2是依據本發明圖1B實施例所繪示的第n級的移位暫存電路的電路圖。 FIG. 2 is a circuit diagram of the n-th stage shift register circuit according to the embodiment of FIG. 1B of the present invention.

圖3是依據本發明圖2實施例所繪示的第n級的移位暫存電路的動作示意圖。 3 is a schematic diagram of the operation of the n-th stage of the shift register circuit shown in the embodiment of FIG. 2 according to the present invention.

圖4A至圖4D是依據本發明圖3實施例所繪示的第n級的移位暫存電路的動作示意圖。 4A to 4D are schematic diagrams illustrating operations of the n-th stage of the shift register circuit according to the embodiment of FIG. 3 of the present invention.

圖5是依據本發明另一實施例所繪示的顯示面板的方塊圖。 FIG. 5 is a block diagram of a display panel according to another embodiment of the present invention.

本發明的部份實施例接下來將會配合附圖來詳細描述,以下的描述所引用的元件符號,當不同附圖出現相同的元件符號將視為相同或相似的元件。這些實施例只是本發明的一部份,並未揭示所有本發明的可實施方式。更確切的說,這些實施例只是本發明的專利申請範圍中的範例。 Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Element symbols quoted in the following description will be regarded as the same or similar elements when the same element symbols appear in different drawings. These examples are only a part of the invention and do not disclose all possible embodiments of the invention. Rather, these embodiments are only examples within the scope of the patent application of the present invention.

請參考圖1A,圖1A是依據本發明一實施例所繪示的顯示面板的方塊圖。在本實施例中,顯示面板100包括畫素陣列PXL以及閘極驅動電路GC。閘極驅動電路GC具有多級移位暫存電路 GC_1、GC_2、...、GC_n。多級移位暫存電路GC_1~GC_n依序耦接在一起。每一級的移位暫存電路GC_1~GC_n耦接於畫素陣列PXL。具體來說,第1級的移位暫存電路GC_1輸出第1級的發光信號EM(1)以及重置信號RST(1)至畫素陣列PXL中的第一畫素列。第2級的移位暫存電路GC_2輸出第2級的發光信號EM(2)以及重置信號RST(2)至畫素陣列PXL中的第二畫素列,以此類推。第n級的移位暫存電路GC_n輸出第n級的發光信號EM(n)以及重置信號RST(n)至畫素陣列PXL中對應的畫素列。 Please refer to FIG. 1A . FIG. 1A is a block diagram of a display panel according to an embodiment of the present invention. In this embodiment, the display panel 100 includes a pixel array PXL and a gate driving circuit GC. The gate drive circuit GC has a multi-level shift temporary storage circuit GC_1, GC_2, ..., GC_n. The multi-stage shift register circuits GC_1 ˜GC_n are sequentially coupled together. The shift register circuits GC_1 ˜GC_n of each stage are coupled to the pixel array PXL. Specifically, the first-stage shift register circuit GC_1 outputs the first-stage light-emitting signal EM( 1 ) and the reset signal RST( 1 ) to the first pixel row in the pixel array PXL. The second-stage shift register circuit GC_2 outputs the second-stage light-emitting signal EM( 2 ) and the reset signal RST( 2 ) to the second pixel row in the pixel array PXL, and so on. The shift register circuit GC_n of the n-th stage outputs the light-emitting signal EM(n) of the n-th stage and the reset signal RST(n) to the corresponding pixel row in the pixel array PXL.

在本實施例中,每一級的移位暫存電路GC_1~GC_n可具有相同的電路架構。 In this embodiment, the shift register circuits GC_1 ˜GC_n of each stage may have the same circuit structure.

請一併參考圖1B,圖1B是依據本發明圖1A實施例所繪示的第n級的移位暫存電路的方塊圖。在本實施例中,第n級的移位暫存電路GC_n包括發光信號產生電路110、發光信號控制電路120、重置信號產生電路130以及重置信號控制電路140。發光信號產生電路110具有節點ND1。發光信號產生電路110的節點ND1輸出發光信號EM(n)至畫素陣列PXL。在本實施例中,發光信號產生電路110用以在對應的發光階段的期間中,致能發光信號EM(n)以驅動畫素陣列PXL。 Please refer to FIG. 1B together. FIG. 1B is a block diagram of the n-th stage of the shift register circuit according to the embodiment of FIG. 1A of the present invention. In this embodiment, the n-th stage of the shift buffer circuit GC_n includes a lighting signal generating circuit 110 , a lighting signal controlling circuit 120 , a reset signal generating circuit 130 and a reset signal controlling circuit 140 . The lighting signal generating circuit 110 has a node ND1. The node ND1 of the lighting signal generating circuit 110 outputs the lighting signal EM(n) to the pixel array PXL. In this embodiment, the light-emitting signal generating circuit 110 is used for enabling the light-emitting signal EM(n) to drive the pixel array PXL during the corresponding light-emitting phase.

發光信號控制電路120耦接於節點ND1。在本實施例中,在重置階段的期間內,發光信號控制電路120使發光信號EM(n)維持為禁能的電壓準位。 The lighting signal control circuit 120 is coupled to the node ND1. In this embodiment, during the reset phase, the light-emitting signal control circuit 120 maintains the light-emitting signal EM(n) at a disabled voltage level.

重置信號產生電路130耦接於節點ND1。重置信號產生 電路130具有輸出端以輸出重置信號RST(n)至畫素陣列PXL。在本實施例中,在重置階段期間的前期,重置信號產生電路130反應於發光信號EM(n)來產生被致能的重置信號RST(n)以重置畫素陣列PXL。 The reset signal generating circuit 130 is coupled to the node ND1. reset signal generation The circuit 130 has an output terminal for outputting the reset signal RST(n) to the pixel array PXL. In the present embodiment, in the early stage of the reset phase, the reset signal generating circuit 130 generates the enabled reset signal RST(n) in response to the light-emitting signal EM(n) to reset the pixel array PXL.

重置信號控制電路140耦接於發光信號控制電路120。重置信號控制電路140耦接於重置信號產生電路130的輸出端。重置信號控制電路140具有輸入端以接收發光信號EM(n)。在本實施例中,在重置階段期間的後期,重置信號控制電路140反應於發光信號EM(n)來使重置信號RST(n)被禁能以停止重置畫素陣列PXL。 The reset signal control circuit 140 is coupled to the lighting signal control circuit 120 . The reset signal control circuit 140 is coupled to the output end of the reset signal generation circuit 130 . The reset signal control circuit 140 has an input terminal to receive the lighting signal EM(n). In the present embodiment, in the later period of the reset phase, the reset signal control circuit 140 is responsive to the light emission signal EM(n) to disable the reset signal RST(n) to stop resetting the pixel array PXL.

在本實施例中,發光階段發生在重置階段之前。 In this embodiment, the lighting phase occurs before the reset phase.

在此值得一提的是,重置信號產生電路130以及重置信號控制電路140是依據發光信號EM(n)來致能或禁能重置信號RST(n)。如此一來,第n級的移位暫存電路GC_n不需要設置額外的電路來產生重置信號RST(n)。因此,用來產生發光信號EM(n)的電路以及用來產生重置信號RST(n)的電路被整合在相同的第n級的移位暫存電路GC_n中,以減少第n級的移位暫存電路GC_n所佔用的電路空間而使顯示面板100上可配置的電路空間被提升以利於設計零邊框的顯示面板100。 It is worth mentioning here that the reset signal generating circuit 130 and the reset signal control circuit 140 enable or disable the reset signal RST(n) according to the light-emitting signal EM(n). In this way, the shift register circuit GC_n of the n-th stage does not need to set an additional circuit to generate the reset signal RST(n). Therefore, the circuit for generating the light-emitting signal EM(n) and the circuit for generating the reset signal RST(n) are integrated in the same shift register circuit GC_n of the n-th stage to reduce the shift of the n-th stage. The circuit space occupied by the bit buffer circuit GC_n increases the configurable circuit space on the display panel 100 to facilitate the design of the display panel 100 with a zero border.

請參考圖2,圖2是依據本發明圖1B實施例所繪示的第n級的移位暫存電路的電路圖。在本實施例中,第n級的移位暫存電路GC_n包括發光信號產生電路210、發光信號控制電路220、 重置信號產生電路230以及重置信號控制電路240。 Please refer to FIG. 2 . FIG. 2 is a circuit diagram of the n-th stage of the shift register circuit according to the embodiment of FIG. 1B of the present invention. In this embodiment, the shift temporary storage circuit GC_n of the nth stage includes a light-emitting signal generating circuit 210, a light-emitting signal control circuit 220, The reset signal generation circuit 230 and the reset signal control circuit 240 are provided.

在本實施例中,重置信號產生電路230包括電晶體T1、T2以及電容器C1。電晶體T1的控制端耦接於節點ND1。電晶體T1受控於節點ND1上的信號(即,發光信號EM(n))來進行開關操作。電晶體T1的第一端接收前級第一控制信號P(n-1)。電晶體T1的第二端與重置信號控制電路240耦接於節點ND2。電晶體T2的控制端耦接於節點ND2。電晶體T2受控於節點ND2上的信號來進行開關操作。電晶體T2的第一端接收時脈信號CK。電晶體T2的第二端輸出重置信號RST(n)。電容器C1的第一端耦接於節點ND2。電容器C1的第二端耦接於電晶體T2的第二端。在本實施例中,電容器C1的第二端與電晶體T2的第二端作為重置信號產生電路230的輸出端以輸出重置信號RST(n)。 In this embodiment, the reset signal generating circuit 230 includes transistors T1, T2 and a capacitor C1. The control terminal of the transistor T1 is coupled to the node ND1. The transistor T1 is controlled by the signal on the node ND1 (ie, the light-emitting signal EM(n)) to perform switching operations. The first end of the transistor T1 receives the first control signal P(n-1) of the previous stage. The second end of the transistor T1 and the reset signal control circuit 240 are coupled to the node ND2. The control terminal of the transistor T2 is coupled to the node ND2. The transistor T2 is controlled by the signal on the node ND2 to perform switching operations. The first end of the transistor T2 receives the clock signal CK. The second end of the transistor T2 outputs the reset signal RST(n). The first end of the capacitor C1 is coupled to the node ND2. The second end of the capacitor C1 is coupled to the second end of the transistor T2. In this embodiment, the second terminal of the capacitor C1 and the second terminal of the transistor T2 are used as the output terminals of the reset signal generating circuit 230 to output the reset signal RST(n).

在本實施例中,重置信號控制電路240包括電晶體T3、T4以及T5。電晶體T3的控制端接收後級第一控制信號P(n+1)。電晶體T3的第一端耦接於節點ND2。電晶體T3的第二端接收電壓信號VGH。在本實施例中,電壓信號VGH可以稱為第一電壓信號VGH。電晶體T4的控制端耦接於電晶體T3的控制端。電晶體T3、T4一同受控於後級第一控制信號P(n+1)來進行開關操作。電晶體T4的第一端耦接於電晶體T2的第二端以及電容器C1的第二端(即,重置信號產生電路230的輸出端)。電晶體T4的第二端接收電壓信號VGH。電晶體T5的控制端接收發光信號EM(n)。電晶體T5受控於發光信號EM(n)來進行開關操作。在本 實施例中,電晶體T5的控制端作為重置信號控制電路240的輸入端。電晶體T5的第一端耦接於電晶體T2的第二端以及電容器C1的第二端。電晶體T5的第二端接收電壓信號VGH。 In this embodiment, the reset signal control circuit 240 includes transistors T3, T4 and T5. The control terminal of the transistor T3 receives the first control signal P(n+1) of the subsequent stage. The first end of the transistor T3 is coupled to the node ND2. The second terminal of the transistor T3 receives the voltage signal VGH. In this embodiment, the voltage signal VGH may be referred to as the first voltage signal VGH. The control terminal of the transistor T4 is coupled to the control terminal of the transistor T3. The transistors T3 and T4 are controlled together by the first control signal P(n+1) of the subsequent stage to perform switching operations. The first terminal of the transistor T4 is coupled to the second terminal of the transistor T2 and the second terminal of the capacitor C1 (ie, the output terminal of the reset signal generating circuit 230 ). The second terminal of the transistor T4 receives the voltage signal VGH. The control terminal of the transistor T5 receives the light-emitting signal EM(n). The transistor T5 is controlled by the light-emitting signal EM(n) to perform switching operations. in this In the embodiment, the control terminal of the transistor T5 is used as the input terminal of the reset signal control circuit 240 . The first end of the transistor T5 is coupled to the second end of the transistor T2 and the second end of the capacitor C1. The second terminal of the transistor T5 receives the voltage signal VGH.

在本實施例中,發光信號產生電路210包括電晶體T6、T7以及電容器C2。電晶體T6的控制端接收時脈信號CK。電晶體T6受控於時脈信號CK來進行開關操作。電晶體T6的第一端接收前級發光信號EM(n-1)。電晶體T6的第二端耦接於節點ND3。電容器C2的第一端接收後級發光信號EM(n+1)。電容器C2的第二端耦接於節點ND3。電晶體T7的控制端耦接於節點ND3。電晶體T7受控於節點ND3上的信號(即,第二控制信號Q(n))來進行開關操作。電晶體T7的第一端接收電壓信號VGL。在本實施例中,電壓信號VGL可以稱為第二電壓信號VGL。電晶體T7的第二端耦接於節點ND1。在本實施例中,電晶體T7的第二端作為發光信號產生電路210的輸出端以輸出發光信號EM(n)。 In this embodiment, the light-emitting signal generating circuit 210 includes transistors T6, T7 and a capacitor C2. The control terminal of the transistor T6 receives the clock signal CK. The transistor T6 is controlled by the clock signal CK to perform switching operations. The first end of the transistor T6 receives the pre-stage light-emitting signal EM(n-1). The second end of the transistor T6 is coupled to the node ND3. The first end of the capacitor C2 receives the post-stage lighting signal EM(n+1). The second end of the capacitor C2 is coupled to the node ND3. The control terminal of the transistor T7 is coupled to the node ND3. The transistor T7 is controlled by the signal on the node ND3 (ie, the second control signal Q(n)) to perform switching operations. The first terminal of the transistor T7 receives the voltage signal VGL. In this embodiment, the voltage signal VGL may be referred to as the second voltage signal VGL. The second end of the transistor T7 is coupled to the node ND1. In this embodiment, the second terminal of the transistor T7 is used as the output terminal of the light-emitting signal generating circuit 210 to output the light-emitting signal EM(n).

在本實施例中,發光信號控制電路220包括電晶體T8、T9、T10、T11、T12、T13以及電阻器R。電晶體T8的控制端耦接於電晶體T8的第一端。電晶體T8的控制端及第一端接收時脈信號CK。電晶體T8耦接成二極體的組態,並接收時脈信號CK。電晶體T9的控制端接收前級發光信號EM(n-1)。電晶體T9受控於前級發光信號EM(n-1)來進行開關操作。電晶體T9的第一端耦接於電晶體T8的第二端。電晶體T9的第二端接收電壓信號VGH。電晶體T10的控制端耦接於電晶體T8的第二端以及電晶 體T9的第一端。電晶體T10的第一端耦接於電晶體T8的控制端以及第一端。電晶體T10的第二端耦接於電阻器R的第一端。電阻器R的第二端耦接於節點ND4。電晶體T11的控制端接收第二控制信號Q(n)。電晶體T11受控於第二控制信號Q(n)來進行開關操作。電晶體T11的第一端耦接於節點ND4。電晶體T11的第二端接收電壓信號VGH。電晶體T12的控制端耦接於節點ND4。電晶體T12的第一端耦接於節點ND3。電晶體T12的第二端接收電壓信號VGH。電晶體T13的控制端耦接於電晶體T12的控制端(即,節點ND4)。電晶體T12、T13一同受控於節點ND4上的信號(即,第一控制信號P(n))來進行開關操作。電晶體T13的第一端耦接於節點ND1。電晶體T13的第二端接收電壓信號VGH。 In this embodiment, the lighting signal control circuit 220 includes transistors T8 , T9 , T10 , T11 , T12 , T13 and a resistor R. The control terminal of the transistor T8 is coupled to the first terminal of the transistor T8. The control terminal and the first terminal of the transistor T8 receive the clock signal CK. The transistor T8 is coupled in a diode configuration and receives the clock signal CK. The control end of the transistor T9 receives the preceding stage lighting signal EM(n-1). The transistor T9 is controlled by the previous-stage light-emitting signal EM(n-1) to perform switching operations. The first end of the transistor T9 is coupled to the second end of the transistor T8. The second terminal of the transistor T9 receives the voltage signal VGH. The control terminal of the transistor T10 is coupled to the second terminal of the transistor T8 and the transistor The first end of body T9. The first terminal of the transistor T10 is coupled to the control terminal and the first terminal of the transistor T8. The second end of the transistor T10 is coupled to the first end of the resistor R. The second end of the resistor R is coupled to the node ND4. The control terminal of the transistor T11 receives the second control signal Q(n). The transistor T11 is controlled by the second control signal Q(n) to perform switching operations. The first end of the transistor T11 is coupled to the node ND4. The second terminal of the transistor T11 receives the voltage signal VGH. The control terminal of the transistor T12 is coupled to the node ND4. The first end of the transistor T12 is coupled to the node ND3. The second terminal of the transistor T12 receives the voltage signal VGH. The control terminal of the transistor T13 is coupled to the control terminal of the transistor T12 (ie, the node ND4). The transistors T12 and T13 are jointly controlled by the signal on the node ND4 (ie, the first control signal P(n)) to perform switching operations. The first end of the transistor T13 is coupled to the node ND1. The second terminal of the transistor T13 receives the voltage signal VGH.

在本實施例中,電壓信號VGH、VGL為不同的定電壓信號。在本實施例中,電壓信號VGH具有被禁能的電壓準位以禁能電晶體T1~T13中任一者。電壓信號VGL具有被致能的電壓準位以致能電晶體T1~T13中任一者。電壓信號VGH可具有相對高的電壓準位,電壓信號VGL則可具有相對低的電壓準位。 In this embodiment, the voltage signals VGH and VGL are different constant voltage signals. In this embodiment, the voltage signal VGH has a disabled voltage level to disable any one of the transistors T1 ˜ T13 . The voltage signal VGL has an enabled voltage level to enable any one of the transistors T1 ˜ T13 . The voltage signal VGH may have a relatively high voltage level, and the voltage signal VGL may have a relatively low voltage level.

請參考圖3以及圖4A至圖4D,圖3是依據本發明圖2實施例所繪示的第n級的移位暫存電路的動作示意圖。圖4A至圖4D是依據本發明圖3實施例所繪示的第n級的移位暫存電路的動作示意圖。在圖3中,橫軸為第n級的移位暫存電路GC_n的操作時間,縱軸為電壓值。 Please refer to FIG. 3 and FIGS. 4A to 4D . FIG. 3 is a schematic diagram illustrating the operation of the n-th stage of the shift register circuit according to the embodiment of FIG. 2 of the present invention. 4A to 4D are schematic diagrams illustrating operations of the n-th stage of the shift register circuit according to the embodiment of FIG. 3 of the present invention. In FIG. 3 , the horizontal axis is the operation time of the n-th stage shift buffer circuit GC_n, and the vertical axis is the voltage value.

關於第n級的移位暫存電路GC_n在第一發光階段的期 間PEM1內的操作細節,請同時參照圖3以及圖4A。在第一發光階段期間PEM1內,發光信號EM(n)具有致能電壓準位VGL2。在本實施例中,致能電壓準位VGL2如以下公式(1)所示:VGL2=VGL1+2×|VTH|......公式(1) Regarding the period of the shift register circuit GC_n of the nth stage in the first light-emitting stage For details of operations in the PEM1, please refer to FIG. 3 and FIG. 4A at the same time. During the first light-emitting phase period PEM1, the light-emitting signal EM(n) has an enable voltage level VGL2. In this embodiment, the enabling voltage level VGL2 is shown in the following formula (1): VGL2=VGL1+2×|VTH|...Formula (1)

在公式(1)中,VGL1表示為電壓信號VGL的電壓準位(即,致能電壓準位VGL1)。VTH表示為電晶體T1~T13中任一者的閾值電壓準位。在本實施例中,電壓信號VGH具有禁能電壓準位VGH1。 In formula (1), VGL1 is expressed as the voltage level of the voltage signal VGL (ie, the enable voltage level VGL1 ). VTH represents the threshold voltage level of any one of the transistors T1 to T13. In this embodiment, the voltage signal VGH has a disable voltage level VGH1.

被致能的發光信號EM(n)導通電晶體T1、T5。被導通的電晶體T1輸出前級第一控制信號P(n-1)至電晶體T2的控制端。前級第一控制信號P(n-1)具有禁能電壓準位VPH。被禁能的前級第一控制信號P(n-1)關斷電晶體T2。後級第一控制信號P(n+1)具有致能電壓準位VPL。被致能的後級第一控制信號P(n+1)導通電晶體T3、T4。被導通的電晶體T3、T4分別將電容器C1兩端上的信號拉至電壓信號VGH(即,禁能電壓準位VGH1)以使重置信號RST(n)被禁能。 The enabled light-emitting signal EM(n) turns on the transistors T1 and T5. The turned-on transistor T1 outputs the first control signal P(n-1) of the previous stage to the control terminal of the transistor T2. The first control signal P(n-1) of the previous stage has a disable voltage level VPH. The disabled first control signal P(n-1) of the preceding stage turns off the transistor T2. The post-stage first control signal P(n+1) has an enable voltage level VPL. The enabled first control signal P(n+1) of the subsequent stage turns on the transistors T3 and T4. The turned-on transistors T3 and T4 respectively pull the signals across the capacitor C1 to the voltage signal VGH (ie, the disable voltage level VGH1 ) to disable the reset signal RST(n).

在另一方面,在第一發光階段的期間PEM1內,前級發光信號EM(n-1)具有致能電壓準位VGL1。被致能的前級發光信號EM(n-1)導通電晶體T9。被導通的電晶體T9將電晶體T10的控制端上的信號拉至電壓信號VGH(即,禁能電壓準位VGH1)以關斷電晶體T10。時脈信號CK具有致能電壓準位VGL1。時脈信號CK可使電晶體T6、T8被導通。被導通的電晶體T6將節點 ND3上的第二控制信號Q(n)拉至被致能的前級發光信號EM(n-1)(即,致能電壓準位VGL1)以導通電晶體T7。被致能的第二控制信號Q(n)導通電晶體T11。被導通的電晶體T11將節點ND4上的第一控制信號P(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以關斷電晶體T12、T13。被導通的電晶體T7將發光信號EM(n)拉至電壓信號VGL(即,致能電壓準位VGL1)而輸出被致能的發光信號EM(n)。 On the other hand, in the period PEM1 of the first light-emitting stage, the previous-stage light-emitting signal EM(n-1) has an enable voltage level VGL1. The enabled front-stage light-emitting signal EM(n-1) turns on the transistor T9. The turned-on transistor T9 pulls the signal on the control terminal of the transistor T10 to the voltage signal VGH (ie, the disable voltage level VGH1) to turn off the transistor T10. The clock signal CK has an enable voltage level VGL1. The clock signal CK enables the transistors T6 and T8 to be turned on. Transistor T6 being turned on will node The second control signal Q(n) on the ND3 is pulled to the enabled pre-emission signal EM(n-1) (ie, the enable voltage level VGL1) to turn on the transistor T7. The enabled second control signal Q(n) turns on the transistor T11. The turned-on transistor T11 pulls the first control signal P(n) on the node ND4 to the voltage signal VGH (ie, the disable voltage level VGH1) to turn off the transistors T12, T13. The turned-on transistor T7 pulls the light-emitting signal EM(n) to the voltage signal VGL (ie, the enable voltage level VGL1 ) to output the enabled light-emitting signal EM(n).

關於第n級的移位暫存電路GC_n在第二發光階段的期間PEM2內的操作細節,請同時參照圖3以及圖4B。在第二發光階段PEM2的期間內,後級第一控制信號P(n+1)具有禁能電壓準位VPH。被禁能的後級第一控制信號P(n+1)關斷電晶體T3、T4。發光信號EM(n)具有致能電壓準位VGL1。被致能的發光信號EM(n)導通電晶體T1、T5。被導通的電晶體T1輸出前級第一控制信號P(n-1)至節點ND2。前級第一控制信號P(n-1)具有致能電壓準位VPL。被致能的前級第一控制信號P(n-1)導通電晶體T2。時脈信號CK具有禁能電壓準位VGH1以使被導通的電晶體T2輸出被禁能的重置信號RST(n)。 Please refer to FIG. 3 and FIG. 4B for details of the operation of the n-th stage of the shift buffer circuit GC_n in the period PEM2 of the second light-emitting stage. During the second light-emitting phase PEM2, the subsequent first control signal P(n+1) has a disable voltage level VPH. The disabled first control signal P(n+1) of the subsequent stage turns off the transistors T3 and T4. The light-emitting signal EM(n) has an enable voltage level VGL1. The enabled light-emitting signal EM(n) turns on the transistors T1 and T5. The turned-on transistor T1 outputs the first control signal P(n-1) of the previous stage to the node ND2. The first control signal P(n-1) of the previous stage has an enabling voltage level VPL. The enabled first control signal P(n-1) of the previous stage turns on the transistor T2. The clock signal CK has a disable voltage level VGH1 so that the turned-on transistor T2 outputs the disabled reset signal RST(n).

在另一方面,在第二發光階段的期間PEM2內,前級發光信號EM(n-1)具有禁能電壓準位VGH1。被禁能的前級發光信號EM(n-1)關斷電晶體T9。電晶體T10則維持被關斷。時脈信號CK具有禁能電壓準位VGH1。時脈信號CK可使電晶體T6、T8被關斷。被關斷的電晶體T6使節點ND3浮接。如此一來,電 容器C2可將後級發光信號EM(n+1)的變化耦合至節點ND3來改變節點ND3上的信號。此時,後級發光信號EM(n+1)具有致能電壓準位VGL2。透過電容器C2,被致能的後級發光信號EM(n+1)可拉低節點ND3上的第二控制信號Q(n)以導通電晶體T7。被致能的第二控制信號Q(n)導通電晶體T11。被導通的電晶體T11將節點ND4上的第一控制信號P(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以關斷電晶體T12、T13。被導通的電晶體T7將發光信號EM(n)拉至電壓信號VGL(即,致能電壓準位VGL1)以輸出被致能的發光信號EM(n)。 On the other hand, in the period PEM2 of the second light-emitting stage, the previous-stage light-emitting signal EM(n-1) has a disable voltage level VGH1. The disabled pre-stage light-emitting signal EM(n-1) turns off the transistor T9. The transistor T10 remains turned off. The clock signal CK has a disable voltage level VGH1. The clock signal CK can turn off the transistors T6 and T8. Transistor T6, which is turned off, floats node ND3. Thus, electricity The container C2 can couple the change of the subsequent stage lighting signal EM(n+1) to the node ND3 to change the signal on the node ND3. At this time, the subsequent-stage light-emitting signal EM(n+1) has an enable voltage level VGL2. Through the capacitor C2, the enabled post-stage lighting signal EM(n+1) can pull down the second control signal Q(n) on the node ND3 to turn on the transistor T7. The enabled second control signal Q(n) turns on the transistor T11. The turned-on transistor T11 pulls the first control signal P(n) on the node ND4 to the voltage signal VGH (ie, the disable voltage level VGH1) to turn off the transistors T12, T13. The turned-on transistor T7 pulls the light-emitting signal EM(n) to the voltage signal VGL (ie, the enable voltage level VGL1 ) to output the enabled light-emitting signal EM(n).

關於第n級的移位暫存電路GC_n在第一重置階段的期間PRT1內的操作細節,請同時參照圖3以及圖4C。在第一重置階段的期間PRT1的期間內,發光信號EM(n)具有禁能電壓準位VGH1。被禁能的發光信號EM(n)關斷電晶體T1、T5。後級第一控制信號P(n+1)具有禁能電壓準位VPH。被禁能的後級第一控制信號P(n+1)關斷電晶體T3、T4。被關斷的電晶體T1、T3使節點ND2浮接。如此一來,電容器C1可將重置信號RST(n)的變化耦合至節點ND2來改變節點ND2上的信號。此時,重置信號RST(n)可具有致能電壓準位VGL1。被致能的重置信號RST(n)可使電晶體T2被導通。此時,時脈信號CK具有致能電壓準位VGL1則可使被導通的電晶體T2輸出被致能的重置信號RST(n)。 Please refer to FIG. 3 and FIG. 4C for details of the operation of the n-th stage shift register circuit GC_n in the period PRT1 of the first reset phase. During the period PRT1 of the first reset phase, the light-emitting signal EM(n) has a disable voltage level VGH1. The disabled light-emitting signal EM(n) turns off the transistors T1, T5. The post-stage first control signal P(n+1) has a disable voltage level VPH. The disabled first control signal P(n+1) of the subsequent stage turns off the transistors T3 and T4. The turned-off transistors T1, T3 float node ND2. As such, capacitor C1 may couple changes in reset signal RST(n) to node ND2 to change the signal on node ND2. At this time, the reset signal RST(n) may have the enable voltage level VGL1. The enabled reset signal RST(n) can turn on the transistor T2. At this time, when the clock signal CK has the enable voltage level VGL1, the turned-on transistor T2 can output the enabled reset signal RST(n).

在另一方面,在第一重置階段的期間PRT1的期間內,前 級發光信號EM(n-1)具有禁能電壓準位VGH1。被禁能的前級發光信號EM(n-1)可使電晶體T9被關斷。此時,時脈信號CK具有致能電壓準位VGL1。時脈信號CK可使電晶體T6、T8被導通。被導通的電晶體T6將節點ND3上的第二控制信號Q(n)拉至前級發光信號EM(n-1)(即,禁能電壓準位VGH1)並藉以關斷電晶體T7、T11。被導通的電晶體T8則將電晶體T10的控制端上的信號拉至時脈信號CK(即,致能電壓準位VGL1)以導通電晶體T10。被導通的電晶體T10將節點ND4上的第一控制信號P(n)拉至時脈信號CK以導通電晶體T12、T13。被導通的電晶體T12將節點ND3上的第二控制信號Q(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以使節點ND3上的第二控制信號Q(n)維持在禁能電壓準位VGH1。被導通的電晶體T13將節點ND1上的發光信號EM(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以使發光信號EM(n)被禁能。 On the other hand, during the period PRT1 of the first reset phase, the previous The level emitting signal EM(n-1) has a disable voltage level VGH1. The disabled pre-stage light-emitting signal EM(n-1) can turn off the transistor T9. At this time, the clock signal CK has the enable voltage level VGL1. The clock signal CK enables the transistors T6 and T8 to be turned on. The turned-on transistor T6 pulls the second control signal Q(n) on the node ND3 to the previous-stage light-emitting signal EM(n-1) (ie, the disable voltage level VGH1), thereby turning off the transistors T7 and T11 . The turned-on transistor T8 pulls the signal on the control terminal of the transistor T10 to the clock signal CK (ie, the enable voltage level VGL1 ) to turn on the transistor T10 . The turned-on transistor T10 pulls the first control signal P(n) on the node ND4 to the clock signal CK to turn on the transistors T12 and T13. The turned-on transistor T12 pulls the second control signal Q(n) on the node ND3 to the voltage signal VGH (ie, the disable voltage level VGH1) to maintain the second control signal Q(n) on the node ND3 at Disable voltage level VGH1. The turned-on transistor T13 pulls the emission signal EM(n) on the node ND1 to the voltage signal VGH (ie, the disable voltage level VGH1) to disable the emission signal EM(n).

關於第n級的移位暫存電路GC_n在第二重置階段的期間PRT2內的操作細節,請同時參照圖3以及圖4D。在第二重置階段的期間PRT2內,發光信號EM(n)具有禁能電壓準位VGH1。被禁能的發光信號EM(n)關斷電晶體T1、T5。後級第一控制信號P(n+1)具有致能電壓準位VPL。被致能的後級第一控制信號P(n+1)導通電晶體T3、T4。被導通的電晶體T3、T4分別將電容器C1兩端上的信號拉至電壓信號VGH(即,禁能電壓準位VGH1)以關斷電晶體T2並使重置信號RST(n)被禁能。 Please refer to FIG. 3 and FIG. 4D for details of the operation of the n-th stage shift register circuit GC_n in the period PRT2 of the second reset phase. During the period PRT2 of the second reset phase, the light-emitting signal EM(n) has a disable voltage level VGH1. The disabled light-emitting signal EM(n) turns off the transistors T1, T5. The post-stage first control signal P(n+1) has an enable voltage level VPL. The enabled first control signal P(n+1) of the subsequent stage turns on the transistors T3 and T4. The turned-on transistors T3, T4 respectively pull the signal on both ends of the capacitor C1 to the voltage signal VGH (ie, the disable voltage level VGH1) to turn off the transistor T2 and disable the reset signal RST(n) .

在另一方面,在第二重置階段的期間PRT2內,前級發光信號EM(n-1)具有禁能電壓準位VGH1。被禁能的前級發光信號EM(n-1)關斷電晶體T9。時脈信號CK具有禁能電壓準位VGH1。此時,時脈信號CK可使電晶體T6、T8被關斷。電晶體T10則維持被關斷。節點ND4上的第一控制信號P(n)維持為前一個期間PRT1的信號(即,具有致能電壓準位VGL1的時脈信號CK),並使電晶體T12、T13維持被導通。被導通的電晶體T12將節點ND3上的第二控制信號Q(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以使節點ND3上的信號維持在禁能電壓準位VGH1以關斷電晶體T7、T11。被導通的電晶體T13將節點ND1上的發光信號EM(n)拉至電壓信號VGH(即,禁能電壓準位VGH1)以使發光信號EM(n)被禁能。 On the other hand, in the period PRT2 of the second reset phase, the previous-stage light-emitting signal EM(n-1) has a disable voltage level VGH1. The disabled pre-stage light-emitting signal EM(n-1) turns off the transistor T9. The clock signal CK has a disable voltage level VGH1. At this time, the clock signal CK can turn off the transistors T6 and T8. The transistor T10 remains turned off. The first control signal P(n) on the node ND4 maintains the signal of the previous period PRT1 (ie, the clock signal CK with the enabling voltage level VGL1 ), and keeps the transistors T12 and T13 turned on. The turned-on transistor T12 pulls the second control signal Q(n) on the node ND3 to the voltage signal VGH (ie, the disable voltage level VGH1) to maintain the signal on the node ND3 at the disable voltage level VGH1 and above Turn off the transistors T7 and T11. The turned-on transistor T13 pulls the emission signal EM(n) on the node ND1 to the voltage signal VGH (ie, the disable voltage level VGH1) to disable the emission signal EM(n).

在本實施例中,電晶體T1~T13是以P型金氧半場效電晶體(p-type Metal-Oxide-Semiconductor Field-Effect Transistor,PMOSFET)來被實現。在其他實施例中,電晶體T1~T13是以N型金氧半場效電晶體(NMOSFET)來被實現。在其他實施例中信號反向於本實施例中對應的信號。 In this embodiment, the transistors T1 ˜ T13 are implemented by p-type Metal-Oxide-Semiconductor Field-Effect Transistor (PMOSFET). In other embodiments, the transistors T1 - T13 are implemented as N-type metal-oxide-semi-field-effect transistors (NMOSFETs). In other embodiments the signals are reversed to the corresponding signals in this embodiment.

請參考圖5,圖5是依據本發明另一實施例所繪示的顯示面板的方塊圖。在本實施例中,顯示面板500包括畫素陣列PXL以及閘極驅動電路GC。畫素陣列PXL包括子畫素陣列PXL_1、PXL_2。在俯視圖中,閘極驅動電路GC設置於子畫素陣列PXL_1、PXL_2之間。關於閘極驅動電路GC的實施細節,在前述的實施 例中已有詳細的說明,在此恕不多重述。 Please refer to FIG. 5 , which is a block diagram of a display panel according to another embodiment of the present invention. In this embodiment, the display panel 500 includes a pixel array PXL and a gate driving circuit GC. The pixel array PXL includes sub-pixel arrays PXL_1 and PXL_2. In a plan view, the gate driving circuit GC is disposed between the sub-pixel arrays PXL_1 and PXL_2. Regarding the implementation details of the gate drive circuit GC, in the aforementioned implementation The example has been described in detail and will not be repeated here.

綜上所述,本發明實施例的閘極驅動電路及顯示面板用來產生發光信號的電路以及用來產生重置信號的電路被整合在相同的移位暫存電路中。此外,閘極驅動電路及顯示面板能夠依據發光信號來產生重置信號。如此一來,閘極驅動電路及顯示面板能夠省去額外用來控制重置信號的電路。因此每一級的移位暫存電路具有整合性的電路架構,以增加顯示面板上可配置的電路空間而助於設計零邊框的顯示面板。在部分實施例中,閘極驅動電路是設置於相鄰的子畫素陣列之間。 To sum up, the gate driving circuit and the circuit for generating the light-emitting signal and the circuit for generating the reset signal of the display panel according to the embodiments of the present invention are integrated in the same shift register circuit. In addition, the gate driving circuit and the display panel can generate the reset signal according to the light-emitting signal. In this way, the gate driving circuit and the display panel can save additional circuits for controlling the reset signal. Therefore, the shift register circuit of each stage has an integrated circuit structure, so as to increase the configurable circuit space on the display panel and help to design a zero-frame display panel. In some embodiments, the gate driving circuit is disposed between adjacent sub-pixel arrays.

雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。 Although the present invention has been disclosed above by the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the scope of the appended patent application.

110:發光信號產生電路 110: Lighting signal generation circuit

120:發光信號控制電路 120: Lighting signal control circuit

130:重置信號產生電路 130: Reset signal generation circuit

140:重置信號控制電路 140: reset signal control circuit

EM(n):發光信號 EM(n): luminescence signal

GC_n:移位暫存電路 GC_n: Shift temporary storage circuit

ND1:節點 ND1: Node

RST(n):重置信號 RST(n): reset signal

Claims (15)

一種閘極驅動電路,具有多級移位暫存電路,其中第n級的移位暫存電路包括:一發光信號產生電路,具有一第一節點輸出一發光信號至一畫素陣列,其中在一第一發光階段至一第二發光階段的期間內,該發光信號產生電路致能該發光信號;一發光信號控制電路,耦接於該第一節點,其中在一第一重置階段至一第二重置階段的期間內,該發光信號控制電路維持該發光信號的電壓準位為禁能的電壓準位;一重置信號產生電路,耦接於該第一節點,其中在該第一重置階段期間內,該重置信號產生電路反應於該發光信號來產生被致能的一重置信號;以及一重置信號控制電路,耦接於該發光信號控制電路以及該重置信號產生電路,其中在該第二重置階段期間內,該重置信號控制電路反應於該發光信號來使該重置信號被禁能。 A gate drive circuit has a multi-stage shift temporary storage circuit, wherein the n-th stage of the shift temporary storage circuit comprises: a light-emitting signal generating circuit having a first node to output a light-emitting signal to a pixel array, wherein in the During a period from a first light-emitting stage to a second light-emitting stage, the light-emitting signal generating circuit enables the light-emitting signal; a light-emitting signal control circuit is coupled to the first node, wherein a first reset stage to a During the second reset phase, the light-emitting signal control circuit maintains the voltage level of the light-emitting signal as a disabled voltage level; a reset signal generating circuit is coupled to the first node, wherein the first During the reset phase, the reset signal generating circuit generates an enabled reset signal in response to the light-emitting signal; and a reset signal control circuit is coupled to the light-emitting signal control circuit and the reset signal generating circuit The circuit, wherein during the second reset phase, the reset signal control circuit is responsive to the lighting signal to disable the reset signal. 如請求項1所述的閘極驅動電路,其中該重置信號產生電路包括:一第一電晶體,具有控制端耦接於該第一節點,該第一電晶體的第一端接收一前級第一控制信號,該第一電晶體的第二端與該重置信號控制電路耦接於一第二節點;一第二電晶體,具有控制端耦接於該第二節點,該第二電晶體的第一端接收一時脈信號,該第二電晶體的第二端輸出該重置 信號;以及一第一電容器,具有第一端耦接於該第二節點,該第一電容器的第二端耦接於該第二電晶體的第二端。 The gate driving circuit of claim 1, wherein the reset signal generating circuit comprises: a first transistor having a control end coupled to the first node, and a first end of the first transistor receives a pre- A first control signal, the second end of the first transistor and the reset signal control circuit are coupled to a second node; a second transistor has a control end coupled to the second node, the second The first end of the transistor receives a clock signal, and the second end of the second transistor outputs the reset signal; and a first capacitor having a first end coupled to the second node, and a second end of the first capacitor coupled to the second end of the second transistor. 如請求項2所述的閘極驅動電路,其中該重置信號控制電路包括:一第三電晶體,具有控制端接收一後級第一控制信號,該第三電晶體的第一端耦接於該第二節點,該第三電晶體的第二端接收一第一電壓信號;一第四電晶體,具有控制端耦接於該第三電晶體的控制端,該第四電晶體的第一端耦接於該第二電晶體的第二端,該第四電晶體的第二端接收該第一電壓信號;以及一第五電晶體,具有控制端接收該發光信號,該第五電晶體的第一端耦接於該第二電晶體的第二端,該第五電晶體的第二端接收該第一電壓信號。 The gate driving circuit of claim 2, wherein the reset signal control circuit comprises: a third transistor having a control terminal to receive a first control signal of a subsequent stage, and the first terminal of the third transistor is coupled to At the second node, the second terminal of the third transistor receives a first voltage signal; a fourth transistor has a control terminal coupled to the control terminal of the third transistor, and the third transistor of the fourth transistor has a control terminal. One end is coupled to the second end of the second transistor, the second end of the fourth transistor receives the first voltage signal; and a fifth transistor has a control end to receive the light-emitting signal, the fifth transistor The first end of the crystal is coupled to the second end of the second transistor, and the second end of the fifth transistor receives the first voltage signal. 如請求項3所述的閘極驅動電路,其中在該第一重置階段的期間內,該發光信號被禁能以關斷該第一電晶體以及該第五電晶體,該後級第一控制信號被禁能以關斷該第三電晶體以及該第四電晶體以使該第二節點浮接,該第一電容器改變該第二節點上的信號以導通該第二電晶體,該時脈信號被致能以使第二電晶體輸出被致能的該重置信號。 The gate driving circuit of claim 3, wherein during the first reset stage, the light-emitting signal is disabled to turn off the first transistor and the fifth transistor, and the subsequent stage first The control signal is disabled to turn off the third transistor and the fourth transistor to make the second node floating, the first capacitor changes the signal on the second node to turn on the second transistor, when The pulse signal is enabled so that the second transistor outputs the enabled reset signal. 如請求項3所述的閘極驅動電路,其中在該第二重置階段的期間內,該發光信號被禁能以關斷該第一電晶體以及該第五 電晶體,該後級第一控制信號被致能以導通該第三電晶體以及該第四電晶體以將該第一電容器兩端上的信號拉至該第一電壓信號以使該重置信號被禁能。 The gate drive circuit of claim 3, wherein during the second reset phase, the light-emitting signal is disabled to turn off the first transistor and the fifth a transistor, the post-stage first control signal is enabled to turn on the third transistor and the fourth transistor to pull the signal on both ends of the first capacitor to the first voltage signal to make the reset signal Disabled. 如請求項3所述的閘極驅動電路,其中在該第一發光階段的期間內,該發光信號被致能以導通該第一電晶體以及該第五電晶體,該前級第一控制信號被禁能以關斷該第二電晶體,該後級第一控制信號被致能以導通該第三電晶體以及該第四電晶體以將該第一電容器兩端上的信號拉至該第一電壓信號以使該重置信號被禁能。 The gate driving circuit of claim 3, wherein during the first light-emitting stage, the light-emitting signal is enabled to turn on the first transistor and the fifth transistor, and the pre-stage first control signal is disabled to turn off the second transistor, and the post-stage first control signal is enabled to turn on the third transistor and the fourth transistor to pull the signal across the first capacitor to the first A voltage signal to disable the reset signal. 如請求項3所述的閘極驅動電路,其中在該第二發光階段的期間內,該後級第一控制信號被禁能以關斷該第三電晶體以及該第四電晶體,該發光信號被致能以導通該第一電晶體以及該第五電晶體,該前級第一控制信號被致能以導通第二電晶體,該時脈信號被禁能以使第二電晶體輸出被禁能的該重置信號。 The gate driving circuit of claim 3, wherein during the second light-emitting stage, the first control signal of the latter stage is disabled to turn off the third transistor and the fourth transistor, and the light-emitting The signal is enabled to turn on the first transistor and the fifth transistor, the pre-stage first control signal is enabled to turn on the second transistor, the clock signal is disabled so that the output of the second transistor is disabled This reset signal is disabled. 如請求項1所述的閘極驅動電路,其中該發光信號產生電路包括:一第六電晶體,具有控制端接收一時脈信號,該第六電晶體的第一端接收一前級發光信號,該第六電晶體的第二端耦接於一第三節點;一第二電容器,具有第一端接收一後級發光信號,該第二電容器的第二端耦接於該第三節點;以及一第七電晶體,具有控制端耦接於該第三節點,該第七電晶 體的第一端接收一第二電壓信號,該第七電晶體的第二端耦接於該第一節點。 The gate driving circuit of claim 1, wherein the light-emitting signal generating circuit comprises: a sixth transistor having a control terminal to receive a clock signal, and a first terminal of the sixth transistor to receive a previous-stage light-emitting signal, The second end of the sixth transistor is coupled to a third node; a second capacitor has a first end that receives a post-stage lighting signal, and the second end of the second capacitor is coupled to the third node; and a seventh transistor having a control terminal coupled to the third node, the seventh transistor The first end of the body receives a second voltage signal, and the second end of the seventh transistor is coupled to the first node. 如請求項8所述的閘極驅動電路,其中該發光信號控制電路包括:一第八電晶體,具有控制端以及第一端接收該時脈信號;一第九電晶體,具有控制端接收該前級發光信號,該第九電晶體的第一端耦接於該第八電晶體的第二端,該第九電晶體的第二端接收該第一電壓信號;一第十電晶體,具有控制端耦接於該第八電晶體的第二端,該第十電晶體的第一端耦接於該第八電晶體的控制端以及第一端;一電阻器,具有第一端耦接於該第十電晶體的第二端,該電阻器的第二端耦接於一第四節點;一第十一電晶體,具有控制端接收一第二控制信號,該第十一電晶體的第一端耦接於該第四節點,該第十一電晶體的第二端接收該第一電壓信號;一第十二電晶體,具有控制端耦接於該第四節點,該第十二電晶體的第一端耦接於該第三節點,該第十二電晶體的第二端接收該第一電壓信號;以及一第十三電晶體,具有控制端耦接於該第四節點,該第十三電晶體的第一端耦接於該第一節點,該第十三電晶體的第二端接收該第一電壓信號。 The gate driving circuit of claim 8, wherein the light-emitting signal control circuit comprises: an eighth transistor having a control terminal and a first terminal to receive the clock signal; a ninth transistor having a control terminal to receive the clock signal a pre-stage light-emitting signal, the first end of the ninth transistor is coupled to the second end of the eighth transistor, and the second end of the ninth transistor receives the first voltage signal; a tenth transistor has The control end is coupled to the second end of the eighth transistor, the first end of the tenth transistor is coupled to the control end and the first end of the eighth transistor; a resistor has a first end coupled to At the second end of the tenth transistor, the second end of the resistor is coupled to a fourth node; an eleventh transistor has a control end to receive a second control signal, and the eleventh transistor has a second end. The first end is coupled to the fourth node, the second end of the eleventh transistor receives the first voltage signal; a twelfth transistor has a control end coupled to the fourth node, the twelfth transistor The first end of the transistor is coupled to the third node, the second end of the twelfth transistor receives the first voltage signal; and a thirteenth transistor has a control end coupled to the fourth node, The first end of the thirteenth transistor is coupled to the first node, and the second end of the thirteenth transistor receives the first voltage signal. 如請求項9所述的閘極驅動電路,其中在該第一重置階段的期間內,該前級發光信號被禁能以關斷該第九電晶體,該時脈信號被致能以導通該第六電晶體以及該第八電晶體以關斷該第七電晶體與該第十一電晶體以及導通該第十電晶體,該第四節點上的信號被致能以導通該第十二電晶體以及該第十三電晶體以將該發光信號拉至該第一電壓信號以使該發光信號被禁能。 The gate driving circuit of claim 9, wherein during the first reset phase, the pre-stage light-emitting signal is disabled to turn off the ninth transistor, and the clock signal is enabled to turn on The sixth transistor and the eighth transistor turn off the seventh transistor and the eleventh transistor and turn on the tenth transistor, and the signal on the fourth node is enabled to turn on the twelfth transistor The transistor and the thirteenth transistor pull the light-emitting signal to the first voltage signal to disable the light-emitting signal. 如請求項9所述的閘極驅動電路,其中在該第二重置階段的期間內,該前級發光信號被禁能以關斷該第九電晶體,該時脈信號被禁能以關斷該第六電晶體以及該第八電晶體,該第十電晶體、該第七電晶體以及該第十一電晶體被關斷,該第十二電晶體以及該第十三電晶體被導通以將該發光信號拉至該第一電壓信號以使該發光信號被禁能。 The gate driving circuit of claim 9, wherein during the second reset phase, the pre-stage light-emitting signal is disabled to turn off the ninth transistor, and the clock signal is disabled to turn off the The sixth transistor and the eighth transistor are turned off, the tenth transistor, the seventh transistor and the eleventh transistor are turned off, the twelfth transistor and the thirteenth transistor are turned on to pull the light-emitting signal to the first voltage signal to disable the light-emitting signal. 如請求項9所述的閘極驅動電路,其中在該第一發光階段的期間內,該前級發光信號被致能以導通該第九電晶體以關斷該第十電晶體,該時脈信號被致能以導通該第六電晶體以及該第八電晶體,該第二控制信號被致能以導通該第十一電晶體以將該第四節點上的信號拉至該第一電壓信號以關斷該第十二電晶體以及該第十三電晶體,該第七電晶體被導通以將該發光信號拉至該第二電壓信號而輸出被致能的該發光信號。 The gate driving circuit of claim 9, wherein during the first light-emitting stage, the pre-stage light-emitting signal is enabled to turn on the ninth transistor to turn off the tenth transistor, and the clock The signal is enabled to turn on the sixth transistor and the eighth transistor, the second control signal is enabled to turn on the eleventh transistor to pull the signal on the fourth node to the first voltage signal To turn off the twelfth transistor and the thirteenth transistor, the seventh transistor is turned on to pull the light-emitting signal to the second voltage signal to output the enabled light-emitting signal. 如請求項9所述的閘極驅動電路,其中在該第二發光階段的期間內,該前級發光信號被禁能以關斷該第九電晶體,該第十電晶體被關斷,該時脈信號被禁能以關斷該第六電晶體以及該 第八電晶體以使該第三節點浮接,該第二電容器改變該第三節點上的信號以導通該第七電晶體以及致能該第二控制信號,該第十一電晶體被導通以將該第四節點上的信號被拉至該第一電壓信號以關斷該第十二電晶體以及該第十三電晶體,該第七電晶體將該發光信號拉至該第二電壓信號以輸出被致能的該發光信號。 The gate driving circuit of claim 9, wherein during the second light-emitting stage, the previous-stage light-emitting signal is disabled to turn off the ninth transistor, the tenth transistor is turned off, and the The clock signal is disabled to turn off the sixth transistor and the The eighth transistor makes the third node floating, the second capacitor changes the signal on the third node to turn on the seventh transistor and enable the second control signal, the eleventh transistor is turned on to The signal on the fourth node is pulled to the first voltage signal to turn off the twelfth transistor and the thirteenth transistor, and the seventh transistor pulls the light-emitting signal to the second voltage signal to The enabled light-emitting signal is output. 一種顯示面板,包括:一畫素陣列;以及如請求項1所述之閘極驅動電路,耦接於該畫素陣列。 A display panel, comprising: a pixel array; and the gate driving circuit according to claim 1, coupled to the pixel array. 如請求項14所述的顯示面板,其中該畫素陣列包括一第一子畫素陣列以及一第二子畫素陣列,該閘極驅動電路設置於該第一子畫素陣列以及該第二子畫素陣列之間。 The display panel of claim 14, wherein the pixel array comprises a first sub-pixel array and a second sub-pixel array, and the gate driving circuit is disposed in the first sub-pixel array and the second sub-pixel array between subpixel arrays.
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