31results about How to "Improve integration accuracy" patented technology

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The invention discloses an LED module and a display device, and relates to the field of display technology. The LED module comprises: an LED substrate, a driving substrate and a connection structure; the LED substrate comprises a PCB substrate, a plurality of first signal lines and are arranged in an array The LED chips and the first signal wiring are arranged on the PCB substrate with the PCB substrate as the substrate, and the first pole and the second pole of the LED chip are respectively connected to different first signal wirings; the driving substrate includes glass a substrate, a driving chip and a plurality of second signal wirings, the driving chip and the second signal wirings are arranged on the glass substrate with the glass substrate as the substrate, and one end of the second signal wiring is electrically connected to the driving chip; the first signal wiring is The wire and the second signal trace are electrically connected through the connection structure. The invention can effectively reduce the IR voltage drop of the signal line between the driving chip and the LED chip while improving the integration precision of the driving chip.

The invention relates to a temperature conversion method and a low-power high-precision integrated temperature sensor. The low-power high-precision integrated temperature sensor is composed of a band gap reference circuit with a sensing core, a positive and negative synchronous switch capacitor integral circuit, a current source and a sampling capacitor dynamic element matching module, a clock generating circuit, a divider and buffer circuit and a fully differential analog-to-digital converter. The sensing core circuit in the traditional technology and the band gap reference circuit are combined and integrated, so that the circuit structure is simplified; the current source dynamic element matching module is arranged and thus a base-emitter junction voltage difference in proportion to the absolute temperature is generated, wherein the polarity of the voltage difference changes alternately; with the novel positive and negative synchronous switch capacitor integral circuit, the improved temperature conversion function is completed and the dynamic range utilization rate of the analog-to-digital converter is improved; dynamic element matching is carried out on the sampling capacitor, thereby improving the integral accuracy; and the analog-to-digital converter is used for carrying out quantization processing on an effective temperature signal to provide a digital output. Therefore, the temperature error and circuit power consumption of the sensor can be effectively reduced; and the method and the sensor are suitable for the low-power high-precision temperature sensing application.