Abstract: The present application discloses a light sensor circuit comprising a first amplifier, a second amplifier and an active load. An integration circuit is formed by the operation of this light sensor circuit and connected to a photodiode. The cathode of the photodiode is controlled to maintain an identical or approximate voltage level with the anode of the photodiode, which significantly reduces the influence of the dark current from the photodiode. Consequently, when applied to an analog-to-digital conversion device, the light sensor circuit effectively maintains the performance and accuracy of the device. Additionally, this design significantly reduces circuit complexity and manufacturing costs.

Abstract: An operation method of a proximity sensor comprises: controlling a light-emitting element by a processing circuit. Such control includes a plurality of light source on and light source off operations. An optical sensor receives light and outputs a sensing signal corresponding to the intensity of the light. The processing circuit computes the sensing signal to produce a sensing result. The plurality of light source on and light source off operations includes a group having two light sources on operations and two light sources off operations. The two light sources on operations in the group or the two light sources off operations in the group are performed consecutively. In this way, the ambient light components of the light source on and off operations may cancel out each other to reduce the ambient light components contained in the sensing results.

Abstract: An operation method of a proximity sensor comprises: controlling a light-emitting element by a processing circuit. Such control includes a plurality of light source on and light source off operations. An optical sensor receives light and outputs a sensing signal corresponding to the intensity of the light. The processing circuit computes the sensing signal to produce a sensing result. The plurality of light source on and light source off operations includes a group having two light sources on operations and two light sources off operations. The two light sources on operations in the group or the two light sources off operations in the group are performed consecutively. In this way, the ambient light components of the light source on and off operations may cancel out each other to reduce the ambient light components contained in the sensing results.

Abstract: A light sensor and control method thereof, which controls the light sensor comprising a first light emitted element, a second light emitted element, a first light sensing element and a control circuit. The light wavelength of the second light emitted element is greater than the light wavelength of the first light emitted element. The control circuit is coupled to the first and second light elements and the first light sensing element. When the display of an electronic device is in a light-up status, the control circuit switches on the first light emitted element to emit light; when the display of the electronic device is in a light-off status, the control circuit switches on the second light emitted element to emit light. Thus, it will prevent from the influence to the image of the display, and obtained the better sensing ability.

Abstract: A light sensor and control method thereof, which controls the light sensor comprising a first light emitted element, a second light emitted element, a first light sensing element and a control circuit. The light wavelength of the second light emitted element is greater than the light wavelength of the first light emitted element. The control circuit is coupled to the first and second light elements and the first light sensing element. When the display of an electronic device is in a light-up status, the control circuit switches on the first light emitted element to emit light; when the display of the electronic device is in a light-off status, the control circuit switches on the second light emitted element to emit light. Thus, it will prevent from the influence to the image of the display, and obtained the better sensing ability.

Abstract: Disclosed is a proximity sensor operating method used in a proximity sensor comprising a light-emitting device. The method comprises: in a standby mode, when an output of the proximity sensor is a first sensing state, driving a driving current of the light-emitting device to comprise a first driving current; when the proximity sensor is triggered, a check mode is entered, the proximity sensor still outputs the first sensing state, and the driving current is switched to comprise a second driving current larger than the first driving current; and in the check mode, when the length of time/number of times of triggering the proximity sensor is larger than or equal to a threshold length/number, the output of the proximity sensor switches to the second sensing state, and returning to the standby mode in which the driving current comprises the first driving current.

Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.

Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.

Abstract: Disclosed is a proximity sensor operating method used in a proximity sensor comprising a light-emitting device. The method comprises: in a standby mode, when an output of the proximity sensor is a first sensing state, driving a driving current of the light-emitting device to comprise a first driving current; when the proximity sensor is triggered, a check mode is entered, the proximity sensor still outputs the first sensing state, and the driving current is switched to comprise a second driving current larger than the first driving current; and in the check mode, when the length of time/number of times of triggering the proximity sensor is larger than or equal to a threshold length/number, the output of the proximity sensor switches to the second sensing state, and returning to the standby mode in which the driving current comprises the first driving current.

Abstract: A proximity sensor for a non-aperture mechanism includes a control circuit for generating a control signal; a first light-emitting element for emitting a first light source according to the control signal of the control circuit; a second light-emitting element for emitting a second light source according to the control signal of the control circuit; and a light sensing element coupled to the control circuit, for sensing the first light source and the second light source reflected by an object, and determining a distance between the proximity sensor and the object according to light intensities of the reflected first light source and the reflected sensed second light source; wherein the light sensing element and the first light-emitting element have a first distance therebetween, the light sensing element and the second light-emitting element have a second distance therebetween, and the second distance is greater than the first distance.

Abstract: A light sensing device includes a substrate, a plurality of light sensing elements and a cover. The plurality of light sensing elements are disposed on the substrate for sensing light. The cover is utilized for sheltering the plurality of light sensing elements, wherein the cover includes a hole for passing the light. A set of the plurality of light sensing elements is selected to be enabled according to a location of the hole relative to the plurality of light sensing elements.

Abstract: A light sensing device includes a substrate, a plurality of light sensing elements and a cover. The plurality of light sensing elements are disposed on the substrate for sensing light. The cover is utilized for sheltering the plurality of light sensing elements, wherein the cover includes a hole for passing the light. A set of the plurality of light sensing elements is selected to be enabled according to a location of the hole relative to the plurality of light sensing elements.

Abstract: The present invention provides a capacitor sensing circuit, comprising a driving unit, a switching unit, a differential integrator circuit, and a post-processing circuit. The driving unit is for providing driving signals and timing required by the capacitor sensing circuit, the switching unit switches signals according to two inverting timings, ?1 and ?2, the driving unit drives the capacitor sensing circuit, and together with the positive/negative input terminals of the differential integrator circuit, the signals are accumulated and integrated in both timing ?1 and ?2. The post-processing circuit receive the differential output of the differential integrator circuit for processing and/or utilizing the signals. The two timing signals are time-sharing signals in a period. Therefore, the capacitor sensing circuit is not effected by the common mode noise, and the accuracy and the sensibility are increased.

Abstract: A method for backlight control includes: receiving a display synchronization signal; generating a backlight control signal according to the display synchronization signal; and driving a backlight source according to the backlight control signal. An apparatus for backlight control includes: a signal receiving circuit, for receiving a display synchronization signal; a control circuit, coupled to the signal receiving circuit, for generating a backlight control signal according to the display synchronization signal; and a driving circuit, coupled to the control circuit, for driving a backlight source according to the backlight control signal.

Abstract: A method for backlight control includes: receiving a display synchronization signal; generating a backlight control signal according to the display synchronization signal; and driving a backlight source according to the backlight control signal. An apparatus for backlight control includes: a signal receiving circuit, for receiving a display synchronization signal; a control circuit, coupled to the signal receiving circuit, for generating a backlight control signal according to the display synchronization signal; and a driving circuit, coupled to the control circuit, for driving a backlight source according to the backlight control signal.

Abstract: The present invention discloses a voltage level generating device. The voltage level generating device includes: a reference voltage generating module, a first circuit module, a second circuit module, and a switch module. The voltage level generating device disclosed in the present invention only requires a buffer, a voltage regulator, and a arithmetic logic unit (ALU) to attain the same function of the conventional common voltage level generating device, and thus the circuit layout area can be reduced so as to decrease the cost of the integrated circuit (IC). In addition, the voltage level generating device disclosed in the present invention also can select different output of voltage level in order to reduce the power consumption of a display device.

Abstract: A light emitting apparatus includes a clock generating circuit and a light-emitting module. The clock generating circuit is for generating a clock control signal. The light emitting module includes a current supplying unit and a light emitting unit. The current supplying unit is for controlling a driving current flowing through a path, and includes a driving current source and a switch unit, which are both positioned in the path. The driving current source is for providing the driving current. The switch unit is coupled to the driving current source and the clock generating circuit, and refers to the clock control signal to open or short for controlling whether the driving current flows through the path. The light emitting unit is positioned in the path and coupled to the current supplying unit, and is for providing a light source according to the driving current.

Abstract: A Gamma voltage driving circuit includes a setting circuit, a Gamma voltage generator, and a plurality of voltage output modules. The setting circuit respectively outputs a plurality of Gamma voltage setting signals at different time slots. The Gamma voltage generator respectively transforms the plurality of Gamma voltage setting signals into a plurality of corresponding voltage levels. The plurality of voltage output modules respectively provides voltage outputs at different time slots. Each voltage output module includes a plurality of voltage output circuits and a plurality of output control circuits. Each voltage output circuit includes a voltage selecting unit and an output buffering unit. The output control circuit controls the voltage output circuit to selectively output Gamma voltages.

Abstract: A driving circuit of a display apparatus includes a decoder coupled to a plurality of scan lines of a display panel for decoding a plurality of input signals to output a plurality of scan line driving signals to thereby enable at least one scan line of the plurality of scan lines, and a plurality of control units (respectively coupled to the plurality of scan lines) for receiving an output enable signal to disable the plurality of scan lines during an interval between two scan lines being enabled.

Abstract: A driving circuit includes a data driving circuit, including a plurality of driving circuit modules respectively corresponding to a plurality of channels; and a control unit, positioned in at least one circuit sub-module of each driving circuit module of the plurality of driving circuit module. When the control unit is enabled, the control unit controls the driving circuit modules output auxiliary display data having a predetermined gray value to drive the display apparatus. When the control unit is disabled, utilizing the driving circuit module to drive the display apparatus according to original display data. A related method of a display apparatus is also disclosed.