Frequency-controlled carrier-free injection-type active display array driving structure
The present invention discloses the CFI-ADA comprising: row scan lines, column scan lines, pixel regions corresponding to intersection areas of the respective row and column scan lines, and a frequency adjustable AC signal source. The pixel region is provided with row-column gating transistors and at least two CFI-LE Devices having different intrinsic driving frequencies. The row scan lines, column scan lines, and row-column gating transistors are configured to select corresponding pixel regions and apply the different frequency AC signal to the CFI-LE Devices. The CFI-LE Devices are activated at different operating frequencies according to their respective intrinsic driving frequencies when powered by the AC signal source. The present invention reduces the number of row and column scan lines under identical pixel conditions, thereby decreasing the area of the scanning circuitry and lowering the fabrication complexity of the display circuit.
1 . A frequency-controlled carrier-free injection-type active display array (CFI-ADA) driving structure, wherein the frequency-controlled driving structure comprises: row scanning lines, column scanning lines, pixel regions corresponding to intersections of the row and column scanning lines, and an AC signal source;
each pixel region includes a row-column gating transistor and at least two carrier-free injection-type light-emitting (CFI-LE) devices with distinct intrinsic driving frequencies,
the row scanning lines, column scanning lines, and row-column gating transistor are configured to selectively activate a corresponding pixel region and apply the frequency adjustable AC signal to the CFI-LE devices,
the CFI-LE devices are configured to illuminate when driven by corresponding frequency components of the AC signal source, with each device activating at its respective intrinsic driving frequency.
2 . The driving structure according to claim 1 , wherein the CFI-LE devices are single-terminal or double-terminal CFI-LE devices, the single-terminal CFI-LE devices comprising a light-emitting element with an insulating layer disposed on one side thereof, and the double-terminal CFI-LE devices comprising a light-emitting element with insulating layers disposed on both sides.
3 . The driving structure according to claim 1 , wherein the row-column gating transistor is configured in a first driving circuit, the first driving circuit comprises three input terminals and one output terminal,
a first input terminal of the first driving circuit is connected to the AC signal source, a second input terminal of the first driving circuit is connected to a corresponding row scanning line, a third input terminal of the first driving circuit is connected to a corresponding column scanning line, and a first output terminal of the first driving circuit is connected to a light-emitting (LE) device group comprising a plurality of CFI-LE devices;
the first driving circuit is configured such that when corresponding activation signals are applied to the second input terminal and the third input terminal, an output signal at the first output terminal matches an input signal at the first input terminal;
within the same pixel region, each CFI-LE device operates at a distinct AC signal frequency for illumination,
a frequency-controlled CFI-ADA is configured to, in response to a light emission command for a first CFI-LE device within the LE device group, control the corresponding row scanning line to output a first activation signal, the corresponding column scanning line to output a second activation signal, and the corresponding AC signal source to output an AC signal frequency corresponding to the first CFI-LE device, thereby causing the first output terminal of the first driving circuit to output the AC signal frequency to drive the first CFI-LE device to emit light.
4 . The driving structure according to claim 3 , wherein the first driving circuit comprises a first thin-film transistor (TFT) and a second TFT,
the AC signal source is connected to a source electrode of the first TFT,
a drain electrode of the first TFT is connected to the LE device group, and a gate electrode of the first TFT is connected to a drain electrode of the second TFT,
a source electrode of the second TFT is connected to a corresponding column scanning line, and a gate electrode of the second TFT is connected to a corresponding row scanning line;
the frequency-controlled CFI-ADA is configured to, in response to a light emission command for a second CFI-LE device within the LE device group, control the corresponding row scanning line and column scanning line associated with the LE device group to output high-level signals, thereby causing the drain electrode of the second TFT to output a high-level signal;
the driving structure is further configured to control the corresponding AC signal source to output the AC signal frequency corresponding to a light emission of the second CFI-LE device, such that the drain electrode of the first TFT is controlled by both the high-level signal input to the gate electrode of the first TFT and the AC signal frequency input to the source electrode of the first TFT, thereby outputting the AC signal frequency corresponding to the light emission of the second CFI-LE device and further driving the second CFI-LE device to emit light.
5 . The driving structure according to claim 4 , wherein a first capacitor is connected between the gate electrode and the source electrode of the second TFT.
6 . The driving structure according to claim 1 , wherein the insulating layer in each CFI-LE device within the same pixel region is configured according to its corresponding frequency characteristics, ensuring that AC signal frequencies driving the emission of these devices do not interfere with each other.
7 . The driving structure according to claim 1 , wherein the CFI-LE devices are dual-terminal CFI-LE devices, a relative area of two insulating layers in each device within the same pixel region is configured according to corresponding frequency selective characteristics to ensure that AC signal frequencies driving the emission of these devices do not interfere with each other.
8 . The driving structure according to claim 1 , wherein the CFI-LE devices are dual-terminal CFI-LE devices, a relative spacing of the two insulating layers in each device within the same pixel region is configured according to corresponding frequency selective characteristics to ensure that AC signal frequencies driving the emission of these devices do not interfere with each other.
9 . The driving structure according to claim 1 , wherein the AC signal source outputs AC signals comprising square wave signals, sine wave signals, triangular wave signals, pulse wave signals, and sawtooth wave signals, with a frequency range of 0 Hz to 100 GHz and a peak voltage of 0 V to 5000 V.
10 . The driving structure according to claim 1 , wherein the first driving circuit adopts one of the following configurations: a 2T1C circuit, a 3T1C circuit, a 4T1C circuit, a single-transistor circuit, a multi-transistor circuit, or one of pixel embedded driving circuits.