Frequency-controlled carrier-free injection-type active display array driving structure

Abstract

A frequency-controlled carrier-free injection-type active display array driving structure, comprising: row scanning lines, column scanning lines, pixel regions corresponding to each intersection region of the row scanning lines and the column scanning lines, and a frequency-modulated alternating-current signal source, wherein each pixel region is provided with row and column gating transistors and at least two carrier-free injection-type light-emitting devices of different inherent driving frequencies, and the row scanning lines, the column scanning lines, and the row and column gating transistors are used for gating the corresponding pixel region and loading the frequency-modulated alternating-current signal source to the carrier-free injection-type light-emitting devices; and the carrier-free injection-type light-emitting devices are lit for work under frequency-modulated alternating-current signal sources at different frequencies on the basis of the different inherent driving frequencies of the carrier-free injection-type light-emitting devices. Under the same light-emitting pixel conditions, the number of row scanning lines and the number of column scanning lines are decreased to reduce the area of a scanning circuit, thereby reducing the preparation complexity of a display circuit.

Description

A frequency-controlled carrier-free injection active display array driving structure Technical Field

[0001] The present invention relates to the field of luminous display driving, and in particular to a frequency-regulated carrier-free injection active display array driving structure. Background Art

[0002] Matrix addressing is a common addressing method for flat-panel displays. It uses row and column indices to determine which pixel should receive an electrical signal to produce a specific color or brightness. Typically, active matrix (AM) driving is employed to achieve precise pixel control. AM display arrays use transistors, thin-film transistors, or other active components to control the electronic state of each pixel, achieving higher control precision and faster response. These arrays are commonly used in high-resolution displays, touchscreens, and large-format displays. As pixel density continues to increase, efficient and compact driver circuits are urgently needed to maximize the effective light-emitting area.

[0003] Existing display drivers are typically driven by row and column scan driver circuits, where the intersection of a row and column scan line typically corresponds to only one light-emitting device (such as an LED). Therefore, an efficient and compact driver circuit would require more row and column scan lines. However, this excessive number of row and column scan lines results in a larger and more complex scanning circuit. Technical issues

[0004] In view of some of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a frequency-controlled carrier-free injection active display array driving structure, which aims to reduce the number of row scan lines and column scan lines under the same luminous pixel conditions to reduce the area of ​​the scanning circuit and reduce the complexity of the display circuit preparation. Technical Solutions

[0005] To achieve the above objectives, the present invention discloses a frequency-controlled carrier-free injection active display array driving structure, the frequency-controlled carrier-free injection active display array driving structure comprising: row scan lines, column scan lines, pixel regions corresponding to respective intersection regions of the row scan lines and the column scan lines, and a frequency-modulated AC signal source, the pixel regions being provided with row and column gating transistors and at least two carrier-free injection light-emitting devices having different inherent driving frequencies, the row scan lines, the column scan lines, and the row and column gating transistors being used to gating the corresponding pixel regions and loading the frequency-modulated AC signal source onto the carrier-free injection light-emitting devices; the carrier-free injection light-emitting devices being lit and operated under the frequency-modulated AC signal source at different frequencies according to their own inherent driving frequencies.

[0006] Optionally, the carrier-free injection light-emitting device is a single-ended carrier-free injection light-emitting device or a double-ended carrier-free injection light-emitting device, wherein the single-ended carrier-free injection light-emitting device includes a light-emitting element, and an insulating layer is provided on one side of the light-emitting element; the double-ended carrier-free injection light-emitting device includes a light-emitting element, and insulating layers are provided on both sides of the light-emitting element.

[0007] Optionally, the row and column selection transistors are arranged in a first driving circuit, and the first driving circuit is provided with three input terminals and one output terminal, the first input terminal of the first driving circuit is connected to a frequency-modulated AC signal source, the second input terminal of the first driving circuit is connected to a corresponding row scan line, the third input terminal of the first driving circuit is connected to a corresponding column scan line, and the first output terminal of the first driving circuit is connected to a light-emitting device group, and the light-emitting device group includes a plurality of carrier-free injection light-emitting devices; wherein, when the first driving circuit is configured to input corresponding turn-on instructions to the second input terminal and the third input terminal, the signal output by the first output terminal matches the signal input by the first input terminal, and the AC signal frequency corresponding to the light emission of each carrier-free injection light-emitting device in the same pixel area is different;

[0008] The frequency-regulated carrier-free injection active display array driving structure is configured to: in response to a light-emitting instruction for a first carrier-free injection light-emitting device in the light-emitting device group, control the row scan line corresponding to the light-emitting device group to output a first turn-on instruction, the corresponding column scan line to output a second turn-on instruction, and the corresponding frequency-modulated AC signal source to output an AC signal frequency corresponding to the light-emitting of the first carrier-free injection light-emitting device, so that the first output end of the first driving circuit outputs the AC signal frequency corresponding to the light-emitting of the first carrier-free injection light-emitting device to control the first carrier-free injection light-emitting device to emit light.

[0009] Optionally, the first driving circuit includes a first thin film transistor and a second thin film transistor;

[0010] The frequency modulated AC signal source is connected to the source of the first thin film transistor, the drain of the first thin film transistor is connected to the light emitting device group, the gate of the first thin film transistor is connected to the drain of the second thin film transistor, the source of the second thin film transistor is connected to the corresponding column scan line, and the gate of the second thin film transistor is connected to the corresponding row scan line;

[0011] The frequency-regulated carrier-free injection active display array driving structure is configured as follows: in response to the light-emitting instruction of the second carrier-free injection light-emitting device in the light-emitting device group, controlling the row scan line corresponding to the light-emitting device group and the corresponding column scan line to output a high level, so that the drain of the second thin-film transistor outputs a high-level signal; controlling the corresponding frequency-modulated AC signal source to output the AC signal frequency corresponding to the light-emitting of the second carrier-free injection light-emitting device, so that the drain of the first thin-film transistor is controlled by the high-level signal input by the gate of the first thin-film transistor and the AC signal frequency input by the source of the first thin-film transistor to output the AC signal frequency corresponding to the light-emitting of the second carrier-free injection light-emitting device, thereby controlling the second carrier-free injection light-emitting device to emit light.

[0012] Optionally, a first capacitor is connected between the gate of the second thin film transistor and the source of the second thin film transistor.

[0013] Optionally, the thickness of the insulating layer of each of the carrier-free injection type light-emitting devices in the same pixel area is set according to the corresponding emission wavelength so that the AC signal frequency corresponding to the emission of each of the carrier-free injection type light-emitting devices in the same pixel area does not cross.

[0014] Optionally, when the carrier-free injection light-emitting device is a double-ended carrier-free injection light-emitting device, the relative areas of the two insulating layers of each of the carrier-free injection light-emitting devices in the same pixel area are further set according to the corresponding light-emitting wavelength so that the AC signal frequencies corresponding to the light-emitting of each of the carrier-free injection light-emitting devices in the same pixel area do not cross.

[0015] Optionally, when the carrier-free injection light-emitting device is a double-ended carrier-free injection light-emitting device, the relative distance between the two insulating layers of each of the carrier-free injection light-emitting devices in the same pixel area is set according to the corresponding light-emitting wavelength so that the AC signal frequency corresponding to the light emission of each of the carrier-free injection light-emitting devices in the same pixel area does not cross.

[0016] Optionally, the AC signal output by the frequency-modulated AC signal source includes a square wave signal, a sine wave signal, a triangle wave signal, a pulse wave signal, and a sawtooth wave signal; the AC signal frequency is 0 Hz to 100 GHz, and the voltage peak is 0 V to 5000 V.

[0017] Optionally, the first driving circuit is one of a 2T1C circuit, a 3T1C circuit, a 4T1C circuit, a single-transistor circuit, a multi-transistor circuit, and a pixel circuit with a built-in driving circuit.

[0018] Optionally, the carrier-free injection light-emitting device includes a double-end carrier-free injection light-emitting diode, a single-end carrier-free injection light-emitting diode, a single-end carrier-free injection quantum dot light-emitting diode, a double-end carrier-free injection quantum dot light-emitting diode, a double-end carrier-free injection nano light-emitting diode, a single-end carrier-free injection nano light-emitting diode and a combination thereof.

[0019] Optionally, the carrier-free injection light-emitting device can emit spectra of different colors according to the selection of materials, including far ultraviolet light, mid ultraviolet light, near ultraviolet light, purple light, blue light, cyan light, green light, yellow light, orange light, red light, infrared light, near infrared light, mid infrared light, and far infrared light; the carrier-free injection light-emitting device has a light emission wavelength range of 1 nm to 1 mm. Beneficial effects

[0020] 1. The frequency-controlled carrier-free injection active display array drive structure of the present invention includes: row scan lines, column scan lines, pixel regions corresponding to the intersections of the row scan lines and the column scan lines, and a frequency-modulated AC signal source. The pixel regions are provided with row and column gating transistors and at least two carrier-free injection light-emitting devices with different inherent driving frequencies. The row scan lines, column scan lines, and row and column gating transistors are used to select the corresponding pixel regions and apply the frequency-modulated AC signal source to the carrier-free injection light-emitting devices. The carrier-free injection light-emitting devices are illuminated and operated by the frequency-modulated AC signal source at different frequencies depending on their inherent driving frequencies. The present invention utilizes carrier-free injection electroluminescence technology driven by an AC signal. Multiple carrier-free injection light-emitting devices with different AC signal frequencies can be provided in a pixel region (a pixel region generally corresponds to the intersection of a row scan line and a column scan line). These carrier-free injection light-emitting devices can emit light by applying the corresponding AC signal frequency to the carrier-free injection light-emitting devices via the frequency-modulated AC signal source. Compared to the prior art where one pixel area generally can only correspond to one light-emitting device, one pixel area of ​​the present invention can correspond to multiple carrier-free injection light-emitting devices. Under the same light-emitting pixel conditions, the number of row scan lines and column scan lines can be reduced to reduce the area of ​​the scanning circuit, thereby reducing the complexity of manufacturing the display circuit. 2. The present invention can set the thickness of the insulating layer, the relative area of ​​the insulating layer, and the relative distance of the insulating layer so that the AC signal frequencies corresponding to the light emission of each carrier-free injection light-emitting device in the same pixel area do not cross. Based on the principle that the AC signal frequency corresponding to the light emission of the carrier-free injection light-emitting device is related to the thickness of the insulating layer, the relative area of ​​the insulating layer, and the relative distance of the insulating layer, the present invention sets these parameters to solve the problem of the AC signal frequencies corresponding to the light emission of carrier-free injection light-emitting devices of different colors crossing.

[0021] In summary, the present invention provides a frequency-controlled carrier-injection active display array drive technology. This technology utilizes the frequency of an AC drive signal and the electro-optical properties of carrier-injection light-emitting devices to selectively select different carrier-injection light-emitting devices based on input AC signals of different frequencies. In this drive circuit, the array pixel region is formed by the perpendicular intersection of row and column scan lines. Each pixel region includes multiple carrier-injection light-emitting devices with different drive frequencies and associated pixel circuits. This frequency control technology uses a frequency switch, allowing the carrier-injection light-emitting devices to be selected and their brightness controlled solely through frequency control. Compared to traditional row and column scanning drive circuits, under the same conditions for luminous pixels, this technology reduces the scanning circuit area by reducing the number of row and column scan lines, reducing the complexity and cost of display circuit fabrication, and providing a more economical and efficient solution for high-resolution displays. Furthermore, the present invention ensures that the AC signal frequencies corresponding to the emission of individual carrier-injection light-emitting devices in the same pixel region do not cross by adjusting the parameters of the insulating layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic structural diagram of a frequency-controlled non-carrier injection active display array driving structure provided by a specific embodiment of the present invention;

[0023] FIG2 is a schematic structural diagram of an AC-driven non-carrier injection light-emitting device according to a specific embodiment of the present invention;

[0024] 3 is a schematic diagram of a red non-carrier injection light-emitting device in a pixel operating independently by medium frequency regulation according to a specific embodiment of the present invention;

[0025] 4 is a schematic diagram of a green non-carrier injection light-emitting device in a pixel working alone by medium frequency regulation according to a specific embodiment of the present invention;

[0026] 5 is a schematic diagram of a blue non-carrier injection light-emitting device in a pixel operating independently by medium frequency regulation according to a specific embodiment of the present invention;

[0027] 6 is a schematic structural diagram of a non-carrier injection active display array driving structure with frequency control of a first AC drive output square wave provided by a specific embodiment of the present invention;

[0028] 7 is a structural diagram of another frequency-controlled non-carrier injection active display array driving structure of a non-carrier injection light-emitting device provided by a specific embodiment of the present invention;

[0029] 8 is a schematic structural diagram of a frequency-controlled non-carrier injection active display array driving structure in which a first driving circuit is 3T1C, provided in a specific embodiment of the present invention;

[0030] FIG9 is a schematic diagram showing the relationship between the brightness of each non-carrier injection light-emitting device and the frequency of an AC signal according to a specific embodiment of the present invention. Best Mode for Carrying Out the Invention

[0031] The present invention discloses a frequency-controlled, carrier-free, active display array drive structure. Those skilled in the art may refer to the contents herein and appropriately improve the technical details for implementation. It is particularly important to note that all similar substitutions and modifications apparent to those skilled in the art are considered encompassed by the present invention. The methods and applications of the present invention have been described through preferred embodiments. It is apparent that relevant personnel may modify or appropriately alter and combine the methods and applications described herein without departing from the content, spirit, and scope of the present invention to implement and apply the technology of the present invention.

[0032] The applicant has discovered through research that the carrier-free injection working mode is an emerging driving technology designed to be applied to nano-pixel light-emitting displays. In this mode, the structure of the carrier-free injection light-emitting diode is relatively simple and does not require complex electrode bonding. In the carrier-free injection light-emitting diode model, the driving electrode and the light-emitting element are separated by an insulating layer, and the recombination and light emission of internal carriers are achieved by applying an AC driving electric field. Compared with traditional LED technology, the introduction of the carrier-free injection mode solves the problems that may arise in metal bonding and a large number of traditional LED processes. The emergence of this technology is expected to promote the development of the display technology field, provide a more convenient and effective method for the preparation of nano-scale light-emitting displays, and reduce the complexity of the process.

[0033] In order to solve the challenge of effective light-emitting area brought about by the miniaturization of pixel size to submicron and nanometer levels in future display panels, it is of great significance to reduce the driving circuit area by optimizing the structure of the display driving array. Modes for Carrying Out the Invention

[0034] Therefore, an embodiment of the present invention provides a carrier-free injection active display array driving structure. As shown in FIG1 , the frequency-controlled carrier-free injection active display array driving structure includes: a row scan line 400, a column scan line 500, a pixel area 600 corresponding to each intersection area of ​​the row scan line 400 and the column scan line 500, and a frequency-modulated AC signal source 200. The pixel area 600 is provided with a row and column gating transistor and at least two carrier-free injection light-emitting devices 100 with different inherent driving frequencies. The row scan line 400, the column scan line 500, and the row and column gating transistor are used to select the corresponding pixel area 600 and load the frequency-modulated AC signal source 200 to the carrier-free injection light-emitting device 100. The carrier-free injection light-emitting device 100 is lit and works under the frequency-modulated AC signal source 200 at different frequencies according to its own inherent driving frequency.

[0035] The inherent driving frequency is the AC signal frequency corresponding to the light emission of the carrier-free injection light-emitting device 100 described below.

[0036] In a specific embodiment, the carrier-free injection light-emitting device 100 is a single-ended carrier-free injection light-emitting device or a double-ended carrier-free injection light-emitting device. The single-ended carrier-free injection light-emitting device includes a light-emitting element, and an insulating layer is provided on one side of the light-emitting element. The double-ended carrier-free injection light-emitting device includes a light-emitting element, and insulating layers are provided on both sides of the light-emitting element.

[0037] Preferably, the row and column selection transistors include but are not limited to field effect transistors, NPN transistors and PNP transistors, especially thin film transistors in field effect transistors.

[0038] In a specific embodiment, the row and column selection transistors are provided in the first driving circuit 700. The first driving circuit 700 is provided with three input terminals and one output terminal. The first input terminal of the first driving circuit 700 is connected to the frequency-modulated AC signal source 200, the second input terminal of the first driving circuit 700 is connected to the corresponding row scan line 400, the third input terminal of the first driving circuit 700 is connected to the corresponding column scan line 500, and the first output terminal of the first driving circuit 700 is connected to the light-emitting device group, which includes a plurality of non-carrier injection light-emitting devices 100. When the first driving circuit 700 is configured to input corresponding turn-on instructions to the second input terminal and the third input terminal, the signal output by the first output terminal matches the signal input to the first input terminal, and the AC signal frequencies corresponding to the light emission of each non-carrier injection light-emitting device 100 in the same pixel area are different.

[0039] The frequency-controlled carrier-free injection active display array driving structure is configured as follows: in response to a light-emitting instruction for a first carrier-free injection light-emitting device 100 in a light-emitting device group, the row scan line 400 corresponding to the light-emitting device group is controlled to output a first turn-on instruction, the corresponding column scan line 500 is controlled to output a second turn-on instruction, and the corresponding frequency-modulated AC signal source 200 is controlled to output an AC signal frequency corresponding to the light-emitting of the first carrier-free injection light-emitting device 100, so that the first output end of the first driving circuit 700 outputs an AC signal frequency corresponding to the light-emitting of the first carrier-free injection light-emitting device 100 to control the first carrier-free injection light-emitting device 100 to emit light.

[0040] It should be noted that the embodiments of the present invention utilize AC signal-driven non-carrier injection electroluminescence technology to enable a single pixel region 600 to control multiple non-carrier injection light-emitting devices 100. This, on the one hand, reduces the number of row scan lines 400 and column scan lines 500, thereby reducing the area of ​​the scanning circuit and lowering the complexity of display circuit fabrication. Furthermore, this allows for a more efficient and compact driving circuit, thereby maximizing the effective light-emitting area.

[0041] In a specific embodiment, as shown in FIG1 , the first driving circuit 700 includes a first thin film transistor and a second thin film transistor;

[0042] The frequency-modulated AC signal source 200 is connected to the source of the first thin-film transistor, the drain of the first thin-film transistor is connected to the light-emitting device group, the gate of the first thin-film transistor is connected to the drain of the second thin-film transistor, the source of the second thin-film transistor is connected to the corresponding column scan line 500, and the gate of the second thin-film transistor is connected to the corresponding row scan line 400; wherein, the source of the first thin-film transistor is the first input terminal, the drain of the first thin-film transistor is the first output terminal, the source of the second thin-film transistor is the second input terminal, and the gate of the second thin-film transistor is the third input terminal.

[0043] The frequency-controlled non-carrier injection active display array drive structure is configured to: in response to a light-emitting instruction from a second non-carrier injection light-emitting device 100 in the light-emitting device group, control the row scan line 400 and the column scan line 500 corresponding to the light-emitting device group to output a high level, thereby causing the drain of the second thin-film transistor to output a high level signal; and control the corresponding frequency-modulated AC signal source 200 to output an AC signal frequency corresponding to the light-emitting device 100, so that the drain of the first thin-film transistor receives the high level signal input from the gate of the first thin-film transistor and the AC signal frequency input from the source of the first thin-film transistor, thereby controlling the output of the AC signal frequency corresponding to the light-emitting device 100, thereby controlling the second non-carrier injection light-emitting device 100 to emit light. The high level signal is a turn-on instruction.

[0044] It should be noted that f1, f2, and f3 in Figure 1 are the center frequencies of the non-carrier injection light-emitting devices 100. The center frequency is the midpoint of the AC signal frequency (a frequency band) corresponding to the light emission.

[0045] Furthermore, a first capacitor is connected between the gate of the second thin film transistor and the source of the second thin film transistor.

[0046] It should be noted that the first drive circuit 700 using a first thin-film transistor and a second thin-film transistor has a simple structure and can effectively perform drive control. A first capacitor is provided between the gate of the second thin-film transistor and the source of the second thin-film transistor. The first capacitor has the following functions: 1. DC isolation coupling: The gate shunt capacitor can prevent DC signals from entering the transistor through the gate, allowing only AC signals to pass through, thereby achieving DC isolation coupling. This ensures that the input signal is not affected by the DC operating point of the transistor, improving the stability and reliability of the entire circuit. 2. Adjusting the frequency response: The capacitance of the gate shunt capacitor can adjust the frequency response of the input signal. A larger gate shunt capacitor makes it easier for low-frequency signals to pass, while a smaller gate shunt capacitor increases the ability to pass high-frequency signals. 3. Changing the gain: The capacitance of the gate shunt capacitor also affects the gain characteristics of the transistor. A larger gate shunt capacitor increases the low-frequency gain of the transistor, while a smaller gate shunt capacitor increases the high-frequency gain.

[0047] In one specific embodiment, the present invention generates sinusoidal signals of varying frequencies, acting on the non-carrier injection light-emitting device 100, based on the frequency of the sinusoidal drive signal and the electro-optical characteristics of the non-carrier injection light-emitting device 100, to provide luminous energy. Taking the driving of the non-carrier injection light-emitting device 100 with a center frequency of f1 in FIG. 1 as an example, the corresponding row scan line 400 and column scan line 500 are set to a high level, the first drive circuit 700 in the corresponding pixel is enabled, and a sinusoidal signal with a frequency of f1 is applied via the frequency-modulated AC signal source 200 to provide energy for the non-carrier injection light-emitting device 100 to emit light. The same principle applies to driving the non-carrier injection light-emitting devices 100 with center frequencies of f2, f3, to fN in the pixel region 600.

[0048] In one specific embodiment, the row scan line 400 and column scan line 500 corresponding to a particular pixel are set to a high level, and the frequency-modulated AC signal source 200 outputs a sinusoidal signal with a frequency of f1 to control the red non-carrier injection light-emitting device 100 to emit light independently, as shown in FIG3 . The frequency-modulated AC signal source 200 outputs a sinusoidal signal with a frequency of f2 to control the green non-carrier injection light-emitting device 100 to emit light independently, as shown in FIG4 . The frequency-modulated AC signal source 200 outputs a sinusoidal signal with a frequency of f3 to control the blue non-carrier injection light-emitting device 100 to emit light independently, as shown in FIG5 . By controlling the potentials of the row scan line 400 and column scan line 500, as well as the frequency of the sinusoidal signal output by the frequency-modulated AC signal source 200, different non-carrier injection light-emitting devices 100 in different pixel regions 600 can be selected, achieving independent control of the red, green, and blue non-carrier injection light-emitting devices 100 through a single row scan line 400 and a single column scan line 500. The frequency of the sinusoidal signal output by the frequency modulated AC signal source 200 is between 0 Hz and 100 GHz. In this embodiment, the sinusoidal signal frequencies f1, f2, and f3 are preferably 1 KHz, 9 KHz, and 100 KHz, respectively.

[0049] In a specific embodiment, the structural diagram of the AC-driven non-carrier injection light-emitting device 100 may be as shown in FIG2 .

[0050] In a specific embodiment, the light-emitting frequency corresponding to the non-carrier injection light-emitting device 100 may be as shown in FIG. 9 .

[0051] In a specific embodiment, the thickness of the insulating layer of each carrier-free injection light-emitting device 100 in the same pixel area is set according to the corresponding emission wavelength so that the AC signal frequency corresponding to the emission of each carrier-free injection light-emitting device 100 in the same pixel area does not cross.

[0052] In a specific embodiment, when the carrier-free injection light-emitting device is a double-terminal carrier-free injection light-emitting device, the relative areas of the two insulating layers of each carrier-free injection light-emitting device 100 in the same pixel area are further set according to the corresponding light-emitting wavelength so that the AC signal frequency corresponding to the light emission of each carrier-free injection light-emitting device 100 in the same pixel area does not cross.

[0053] In a specific embodiment, when the carrier-free injection light-emitting device is a double-ended carrier-free injection light-emitting device, the relative distance between the two insulating layers of each carrier-free injection light-emitting device 100 in the same pixel area is set according to the corresponding light-emitting wavelength so that the AC signal frequency corresponding to the light emission of each carrier-free injection light-emitting device 100 in the same pixel area does not cross.

[0054] It should be noted that each carrier-free injection light-emitting device 100 corresponds to a range of AC signal frequencies. For example, the red light corresponds to 0.9 kHz to 1.0 kHz, with the central AC signal frequency being 0.95 kHz. This means that the red light can emit light at any frequency between 0.9 kHz and 1.0 kHz from the frequency-modulated AC signal source 200. When the frequency-modulated AC signal source 200 outputs 0.95 kHz, the red light reaches its brightest. The embodiments of the present invention, based on the principle that the AC signal frequency corresponding to the emission of the carrier-free injection light-emitting device 100 is related to the thickness of the insulating layer, the relative area of ​​the insulating layer, and the relative distance between the insulating layers, set these parameters to address the issue of crossover of the AC signal frequencies corresponding to the emission of different colors of carrier-free injection light-emitting devices 100. For example, in some cases, one color of light corresponds to 0.9 kHz to 1.0 kHz, while another corresponds to 0.95 kHz to 1.05 kHz. This can result in crossover, and the embodiments of the present invention can effectively address this issue.

[0055] Optionally, the AC signal output by the frequency modulated AC signal source 200 includes a square wave signal, a sine wave signal, a triangle wave signal, a pulse wave signal, and a sawtooth wave signal; the AC signal frequency is 0 Hz to 100 GHz, and the voltage peak is 0 V to 5000 V.

[0056] In a specific embodiment, as shown in FIG6 , the output waveform of the FM AC signal source 200 can be replaced by a square wave signal, a triangle wave signal, a pulse wave signal, a sawtooth wave signal, etc.

[0057] Optionally, the first driving circuit 700 is one of a 2T1C circuit, a 3T1C circuit, a 4T1C circuit, a single-transistor circuit, a multi-transistor circuit, and a pixel circuit with a built-in driving circuit.

[0058] In one specific embodiment, as shown in FIG8 , the first driving circuit 700 is a 3T1C circuit.

[0059] It should be noted that in the 2T1C circuit, 3T1C circuit, and 4T1C circuit, T refers to thin-film transistor (TFT) and C refers to capacitor.

[0060] Optionally, the carrier-free injection light-emitting device 100 includes a double-end carrier-free injection light-emitting diode, a single-end carrier-free injection light-emitting diode, a single-end carrier-free injection quantum dot light-emitting diode, a double-end carrier-free injection quantum dot light-emitting diode, a double-end carrier-free injection nano light-emitting diode, a single-end carrier-free injection nano light-emitting diode and a combination thereof.

[0061] In a specific embodiment, as shown in FIG7 , the non-carrier injection type light emitting device 100 used in FIG7 is different from that in FIG1 , and can be other types of non-carrier injection type light emitting devices 100 than that in FIG1 .

[0062] Optionally, the carrier-free injection light-emitting device 100 can emit spectra of different colors according to the selection of materials, including far ultraviolet light, mid ultraviolet light, near ultraviolet light, purple light, blue light, cyan light, green light, yellow light, orange light, red light, infrared light, near infrared light, mid infrared light, and far infrared light; the carrier-free injection light-emitting device 100 has a light emission wavelength range of 1 nm to 1 mm.

[0063] In an embodiment of the present invention, the pixel area 600 includes a first driving circuit 700, which is provided with three input terminals and one output terminal. The first input terminal of the first driving circuit 700 is connected to the frequency-modulated AC signal source 200, the second input terminal of the first driving circuit 700 is connected to the corresponding row scan line 400, the third input terminal of the first driving circuit 700 is connected to the corresponding column scan line 500, and the first output terminal of the first driving circuit 700 is connected to the light-emitting device group, which includes a plurality of carrier-free injection light-emitting devices 100; the AC signal frequencies corresponding to the light emission of each carrier-free injection light-emitting device 100 in the same pixel area are different. The embodiments of the present invention utilize non-carrier injection electroluminescence technology driven by an AC signal. Multiple non-carrier injection light-emitting devices 100 with different AC signal frequencies can be positioned within a pixel region 600 (a pixel region 600 generally corresponds to the intersection of a row scan line 400 and a column scan line 500). These non-carrier injection light-emitting devices 100 can then emit light using a frequency-modulated AC signal source 200 that applies corresponding AC signal frequencies. Compared to the prior art, where a pixel region 600 generally corresponds to only one light-emitting device, the embodiments of the present invention can accommodate multiple non-carrier injection light-emitting devices 100 within a pixel region 600. This allows the number of row scan lines 400 and column scan lines 500 to be reduced under the same luminous pixel conditions, thereby reducing the area of ​​the scanning circuit and lowering the complexity of display circuit fabrication.

[0064] In the embodiments of the present invention, the thickness of the insulating layer, the relative area of ​​the insulating layer, and the relative distance between the insulating layers can be set to prevent the AC signal frequencies corresponding to the light emission of each non-carrier injection type light-emitting device 100 in the same pixel region from intersecting. Based on the principle that the AC signal frequency corresponding to the light emission of the non-carrier injection type light-emitting device 100 is related to the thickness, relative area, and relative distance of the insulating layer, the embodiments of the present invention set these parameters to solve the problem of AC signal frequencies corresponding to the light emission of non-carrier injection type light-emitting devices 100 of different colors intersecting.

[0065] In summary, embodiments of the present invention provide a frequency-controlled non-carrier injection active display array driving technology. This technology utilizes the frequency of an AC drive signal and the electro-optical properties of the non-carrier injection light-emitting devices 100 to selectively select different non-carrier injection light-emitting devices 100 according to the input AC signal of different frequencies. In this driving circuit, the array pixel region 600 is formed by the vertical intersection of row scan lines 400 and column scan lines 500. Each pixel region 600 includes multiple non-carrier injection light-emitting devices 100 with different driving frequencies and associated pixel circuits. This frequency control technology uses a frequency switch to enable the non-carrier injection light-emitting devices 100 to be selected and their brightness controlled solely through frequency control. Compared to traditional row and column scanning drive circuits, under the same light-emitting pixel conditions, this technology reduces the scanning circuit area by reducing the number of row scan lines 400 and column scan lines 500, thereby reducing the complexity and cost of display circuit manufacturing, providing a more economical and efficient solution for high-resolution displays. On the other hand, the embodiment of the present invention ensures that the AC signal frequencies corresponding to the light emission of each non-carrier injection type light-emitting device 100 in the same pixel area do not cross by setting the parameters of the insulating layer.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0067] Each embodiment in this specification is described in a related manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiment is generally similar to the method embodiment, so the description is relatively simple. For related parts, refer to the description of the method embodiment.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A carrier-free injection active display array driving structure, characterized in that: The frequency-regulated carrier-free injection active display array driving structure includes: row scan lines, column scan lines, pixel areas corresponding to the intersection areas of the row scan lines and the column scan lines, and a frequency-modulated AC signal source. The pixel area is provided with row and column gating transistors and at least two carrier-free injection light-emitting devices with different inherent driving frequencies. The row scan lines, the column scan lines, and the row and column gating transistors are used to select the corresponding pixel areas and load the frequency-modulated AC signal source to the carrier-free injection light-emitting device; the carrier-free injection light-emitting device is lit and works under the frequency-modulated AC signal source at different frequencies according to the different inherent driving frequencies of the device.

2. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: The carrier-free injection light-emitting device is a single-ended carrier-free injection light-emitting device or a double-ended carrier-free injection light-emitting device. The single-ended carrier-free injection light-emitting device includes a light-emitting element, and an insulating layer is arranged on one side of the light-emitting element. The double-ended carrier-free injection light-emitting device includes a light-emitting element, and insulating layers are arranged on both sides of the light-emitting element.

3. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: The row and column selection transistors are arranged in a first driving circuit, the first driving circuit is provided with three input terminals and one output terminal, the first input terminal of the first driving circuit is connected to the frequency-modulated AC signal source, the second input terminal of the first driving circuit is connected to the corresponding row scan line, the third input terminal of the first driving circuit is connected to the corresponding column scan line, and the first output terminal of the first driving circuit is connected to a light-emitting device group, the light-emitting device group includes a plurality of carrier-free injection-type light-emitting devices; wherein, when the first driving circuit is arranged to input corresponding start-up instructions to the second input terminal and the third input terminal, the signal output by the first output terminal matches the signal input by the first input terminal, and the AC signal frequencies corresponding to the light emission of each of the carrier-free injection-type light-emitting devices in the same pixel area are different; The frequency-regulated carrier-free injection active display array driving structure is configured as follows: in response to a light-emitting instruction for a first carrier-free injection light-emitting device in the light-emitting device group, the row scan line corresponding to the light-emitting device group is controlled to output a first start instruction, the corresponding column scan line is controlled to output a second start instruction, and the corresponding frequency-modulated AC signal source is controlled to output an AC signal frequency corresponding to the light emission of the first carrier-free injection light-emitting device, so that the first output end of the first driving circuit outputs the AC signal frequency corresponding to the light emission of the first carrier-free injection light-emitting device to control the first carrier-free injection light-emitting device to emit light.

4. The non-carrier injection type active display array driving structure according to claim 3, characterized in that: The first driving circuit includes a first thin film transistor and a second thin film transistor; The frequency modulated AC signal source is connected to the source of the first thin film transistor, the drain of the first thin film transistor is connected to the light emitting device group, the gate of the first thin film transistor is connected to the drain of the second thin film transistor, the source of the second thin film transistor is connected to the corresponding column scan line, and the gate of the second thin film transistor is connected to the corresponding row scan line; The frequency-regulated carrier-free injection active display array driving structure is configured as follows: in response to the light-emitting instruction of the second carrier-free injection light-emitting device in the light-emitting device group, control the row scan line corresponding to the light-emitting device group and the corresponding column scan line to output a high level, so that the drain of the second thin film transistor outputs a high level signal; control the corresponding frequency-modulated AC signal source to output the AC signal frequency corresponding to the light emission of the second carrier-free injection light-emitting device, so that the drain of the first thin film transistor is controlled by the high level signal input by the gate of the first thin film transistor and the AC signal frequency input by the source of the first thin film transistor to output the AC signal frequency corresponding to the light emission of the second carrier-free injection light-emitting device, thereby controlling the second carrier-free injection light-emitting device to emit light.

5. The non-carrier injection type active display array driving structure according to claim 4, characterized in that: A first capacitor is connected between the gate of the second thin film transistor and the source of the second thin film transistor.

6. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: The thickness of the insulating layer of each of the non-carrier injection type light-emitting devices in the same pixel area is set according to the corresponding light emission wavelength so that the AC signal frequency corresponding to the light emission of each of the non-carrier injection type light-emitting devices in the same pixel area does not cross.

7. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: When the carrier-free injection light-emitting device is a double-terminal carrier-free injection light-emitting device, the relative areas of the two insulating layers of each of the carrier-free injection light-emitting devices in the same pixel area are further set according to the corresponding light-emitting wavelength so that the AC signal frequencies corresponding to the light emission of each of the carrier-free injection light-emitting devices in the same pixel area do not cross.

8. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: When the carrier-free injection light-emitting device is a double-terminal carrier-free injection light-emitting device, the relative distance between the two insulating layers of each of the carrier-free injection light-emitting devices in the same pixel area is set according to the corresponding light-emitting wavelength so that the AC signal frequency corresponding to the light emission of each of the carrier-free injection light-emitting devices in the same pixel area does not cross.

9. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: The AC signal output by the frequency modulated AC signal source includes a square wave signal, a sine wave signal, a triangle wave signal, a pulse wave signal, and a sawtooth wave signal; the frequency of the AC signal is 0 Hz to 100 GHz, and the voltage peak is 0 V to 5000 V.

10. The non-carrier injection type active display array driving structure according to claim 1, characterized in that: The first driving circuit is one of a 2T1C circuit, a 3T1C circuit, a 4T1C circuit, a single transistor circuit, a multi-transistor circuit, and a driving circuit with built-in pixel circuit.

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