Abstract: A display device includes a timing controller which supplies a clock training signal through a data clock signal line and a first control signal through a shared signal line in a first period of one frame, and supplies image data through the data clock signal line in a second period of the one frame, a data driver provided with data driving circuits which generate a clock signal based on the clock training signal and the first control signal in the first period, and generate data voltages based on the clock signal and the image data in the second period, and a pixel part which receives the data voltages from the data driver. The data driver may supply a second control signal indicating a reception state of the data driver to the timing controller through the shared signal line in the second period.

Abstract: A pixel circuit and a driving method thereof, as well as a display device. The pixel circuit includes an initialization signal terminal, a scanning signal terminal, a data signal terminal, a first power supply terminal, a second power supply terminal, a reference voltage terminal a light-emitting signal control terminal, a reset signal terminal, a data writing sub-circuit, a threshold compensation sub-circuit, a light-emitting control sub-circuit, a reset sub-circuit, a storage capacitor, a driver transistor and a light-emitting element. The threshold compensation sub-circuit is configured to pre-store the threshold voltage of the driver transistor in the storage capacitor.

Abstract: The present disclosure relates to an electronic device that includes a display that has a plurality of scan lines. The display also includes a first data line that has a first number of pixels. The first data line forms a first number of crossovers with the plurality of scan lines. Additionally, the display includes a second data line that has a second number of pixels that is different than the first number of pixels. The second data line forms a second number of crossovers with the plurality of scan lines that is equal to the first number of crossovers.

Abstract: In one example, a display device may include a display panel having a light guide plate, a printed circuit board (PCB) to generate a driving signal to drive the display panel, a driving integrated circuit (IC) mounted on the display panel to process the driving signal, a timing controller (TCON) integrated into the driving IC to control driving of the display panel, and a flexible printed circuit to electrically connect the driving IC and the PCB. The PCB may be disposed behind the driving IC.

Abstract: A novel and highly convenient or reliable display panel is provided which includes a first driver circuit, a second driver circuit, a first scan line, a second scan line, and a first signal line. The first driver circuit supplies a selection signal. The second driver circuit supplies a predetermined voltage, first data using a voltage greater than or equal to the predetermined voltage, and second data using a voltage less than or equal to the predetermined voltage. The first scan line is selected in a first period. The second scan line adjacent to the first scan line is selected in a third period. The first signal line receives the first data in the first period, the predetermined voltage in a second period, and the second data in the third period. The second period is provided between the first period and the third period.

Abstract: A display substrate, a method for manufacturing the display substrate, and a display device are provided. The display substrate includes a display area and a fanout area at the periphery of the display area. The fanout area includes a data line layer, a first power line layer, and at least two insulation layers between the data line layer and the first power line layer. In a direction perpendicular to a base substrate of the display substrate, the first power line layer overlaps the data line layer. At least one of the at least two insulation layers includes a portion which insulates the first power line layer and the data line layer from each other.

Abstract: Methods and apparatus for conducting test promotions in a highly scalable and cost-effective manner using controlled experiment methodology are disclosed. Test promotions of interest are presented to visitors of a website in a controlled experiment manner wherein each page presents one test promotion of interest among other promotions. The other promotions presented in the same page are kept constant in the pages. The visitors' responses with respect to the test promotions of interest are then recorded and analyzed to determine the performance of each presented test promotion of interest.

Abstract: A pixel circuit for driving a light-emitting device for a display device is operable in an initialization phase, a compensation phase, a data programming phase, and an emission phase. The one horizontal time is minimized while maintaining accurate compensation of the threshold voltage of the drive transistor, and the pixel circuit further employs a varactor to compensate for variations in the threshold voltage of the drive transistor and for parasitic capacitances that arise within the pixel circuit. A capacitance of the varactor varies with a voltage at a node N1 constituting an electrical connection during the compensation phase of the drive transistor, the light-emitting device, a storage capacitor, and the varactor. The use of the capacitance variation of the varactor accounts for a variation in the threshold voltage of the drive transistor and for parasitic capacitances in the pixel circuit. The varactor may be implemented as a thin film transistor that operates as a variable capacitor.

Abstract: A display device includes M sets of light emitters and (M+1) sets of drivers, wherein M is a positive integer. Each set of the (M+1) sets of drivers is coupled to at least one set of the M sets of light emitters. When a first set of drivers among the (M+1) sets of drivers are configured to perform a sensing operation, M sets of drivers other than the first set of drivers among the (M+1) sets of drivers are configured to drive the M sets of light emitters, respectively.

Abstract: The present disclosure relates to an array substrate, including a display area and a non-display area arranged around the display area. The display area includes a plurality of pixel circuits arranged in an array and a first signal line connecting to the pixel circuits. The non-display area includes at least one common circuit and a data driving chip. Each of the common circuits is connected to the pixel circuit through the first signal line, and is configured to provide an initialization signal and a data signal for the pixel circuit. The data driving chip is connected to the common circuit through a second signal line and a third signal line.

Abstract: This application relates to a display device and a regulation method therefor. The display device includes a display panel and a drive circuit. The display panel includes a display area and a fan-out area. The display area is provided with a plurality of data lines, and the fan-out area is provided with a plurality of connection lines. The drive circuit includes: a detection circuit, configured to detect resistances of connection lines, where the connection lines include a first connection line and a second connection line; a plurality of source drive circuits, where an adjustable resistors is integrated inside the source drive circuit; and a control chip, configured to compare the resistances of the first connection line and the second connection line and output a control signal, where the source drive circuits adjust a resistance of the adjustable resistor according to the control signal.

Abstract: The present disclosure relates generally systems and methods for controlling current provided to display devices. A method for controlling the current may include receiving drive current values associated with subpixels in a display and receiving information that corresponds to an application type being rendered on the display and/or an indication of image data being rendered on the display. The method may then include reducing at least some of the drive current values based at least in part on the application type. Alternatively, the method may include reducing the at least a portion of the image data corresponding to the at least some of the drive current values has substantially similar luminance and color values. The method may then include supplying the subpixels with drive currents that correspond to the drive current values.

Abstract: A display panel and a method of manufacturing same, the display module. The display panel includes a substrate; a signal wire layer disposed on the substrate. The signal wire layer includes a gate electrode layer and a source/drain electrode layer. The gate electrode includes a gate electrode and a scanning signal wire. The source/drain electrode layer includes a source electrode, a drain electrode, and a power drive wire. The display panel further includes a resistance-reduction wire disposed between the substrate and the source/drain electrode layer. The resistance-reduction wire is electrically connected to the power drive wire by a through hole.

Abstract: An organic light emitting display device includes: a first pixel region including first pixels coupled to first and second scan lines, and emission control lines; a first scan driver which supplies a first scan signal to each first scan line; a second scan driver which supplies a second scan signal to each second scan line; and an emission driver which supplies a light emission control signal to the emission control lines. The organic light emitting display device is in a second mode when the organic light emitting display device is mounted in a wearable device, and in a first mode otherwise. The second scan driver supplies k second scan signals to each second scan line in the first mode, and supplies j second scan signals to each second scan line in the second mode, where j is greater than k.

Abstract: A power saving method includes enabling an input signal detection unit of the display controller for detecting a first presence of at least one input signal of the display controller, entering the display controller to a power-off mode temporarily for decreasing an operation power from a first power to a second power within a second time period when the at least one input signal is not received by the input signal detection unit within a first time period, detecting a second presence of the at least one input signal continuously by the input signal detection unit after the second time period elapses, and adjusting an operation mode of the display controller according to the second presence of the at least one input signal. The second power is smaller than the first power. The second power corresponds to a power of the display controller under the power-off mode.

Abstract: A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.

Abstract: An electroluminescence display device including a gate driver comprised of a plurality of stages, the gate driver comprises a kth stage for providing an emission signal to an nth pixel row (where n and k are natural numbers and 1?k?n); a first controller of the kth stage that is connected to the kth stage and providing an input signal; and a second controller of the kth stage that is connected to the kth stage and receiving an output signal of the kth stage as an input signal, wherein the first controller is implemented to generate a control signal for sensing the nth pixel row, and wherein the second controller is connected to an emission line, to which the emission signal is applied, to provide the output signal of the kth stage to the emission line, and the second controller is connected to a first controller of a (k+1)th stage to provide the output signal of the kth stage shifted to an emission carry signal to the first controller of the (k+1)th stage.

Abstract: Embodiments are disclosed for selectively and partially erasing images from a liquid crystal writing device. A liquid crystal writing device according to some embodiments includes a transparent top layer, a liquid crystal layer including a plurality of liquid crystal cells beneath the transparent top layer, a matrix of electrodes, and a control circuitry. The liquid crystal layer displays an image by switching cells to a reflective state. The writing device detects a mechanical pressure applied on a pressed area, the mechanical pressure indicating a command to erase at least a portion of the image from the pressed area. The control circuitry instructs one or more electrodes from the matrix to apply an erase voltage signal to a portion of the liquid crystal cells that correspond to the pressed area, wherein the erase voltage signal switches the portion of the liquid crystal cells to the scattering state.

Abstract: In implementations of the subject matter described herein, a device is provided. The device comprises a power source and a display. The device also comprises a buffer in communication with the display. The buffer is configured to store information to be displayed on the display. The device further comprises a power management unit. In a power-off mode of the device where remaining capacity of the power source is below a threshold, the power management unit powers the display and the buffer, so that the display can display the information stored in the buffer. In this way, even if the device is in the power-off mode due to the low capacity of the power source, the display can still present useful information to the user.

Abstract: A portable device, a display apparatus, a display system, and a method for controlling power of a display apparatus thereof are provided. The method includes sensing, while a portable device operates in a standby mode, a movement of the portable device using a motion sensor, converting, using the portable device, the standby mode of the portable device into a normal mode in response to the movement of the portable device being sensed, generating, using the portable device, a pre-power on signal in response to the standby mode being converted into the normal mode, transmitting the pre-power on signal to the display apparatus, and activating, by the display apparatus, some elements of the display apparatus in response to the pre-power on signal being received.

Abstract: The present disclosure provides a gate driving circuit and a driving method, and a display device. The gate driving circuit includes: a plurality of first gate driving units, ith first gate driving unit being configured to output a first gate driving signal to ith row of gate line in a display phase; a plurality of first control modules, mth first control module being configured to control mth second gate driving unit to output a second gate driving signal to mth row of gate line in a vertical blanking phase; nth first control module being configured to control nth second gate driving unit not to output the second gate driving signal in the vertical blanking phase; a plurality of second control modules, kth second control module being configured to control kth second gate driving unit not to output the second gate driving signal in the vertical blanking phase.

Abstract: The present disclosure relates to an organic light emitting display device including a display panel on which a plurality of data lines, a plurality of gate lines, a plurality of first power lines, a plurality of second power lines, and a plurality of pixels are disposed. Each of the plurality of pixels includes: a storage capacitor connected between a first node and a second node; a driving transistor including a gate electrode connected to the second node, a drain electrode connected to the power line, and a source electrode connected to the first node; an organic light emitting diode connected to the first node and the second power line; a first switching transistor connected to the second node and the data lines; and a second switching transistor connected to the first node and the first power lines.

Abstract: The present application discloses a pixel-driving circuit in a display panel. The pixel-driving circuit includes a first transistor being provided with a fixed voltage, a driving transistor having a gate configured to receive the fixed voltage controlled by the first transistor and a drain coupled to a first power supply, a capacitor coupled between the gate and a source of the driving transistor, a light-emitting device coupled to the source and a second power supply, a second transistor having a drain coupled to the source of the driving transistor and a source coupled to a data line, a sensing sub-circuit coupled to the data line in a first period, and a driving sub-circuit coupled to the data line in a second period. The sensing sub-circuit and the driving sub-circuit are configured to connect to the data line in a time-divisional manner respectively for sensing and compensating the pixel-driving circuit.

Abstract: A pixel circuit compensates the threshold voltage variations of the drive transistor with an ultra-short one horizontal (1H) time, with additionally removing the possible memory effects associated with the light-emitting device and the drive transistor from the previous frame. An ultra-short 1H time (<2 ?s) is achieved via separation of threshold compensation of the drive transistor and data programming phases. The pixel circuit has a two-capacitor configuration, whereby a first capacitor is used for drive transistor threshold compensation, and a second capacitor is used to store the data voltage during a data pre-loading phase. Two transistors are employed to electrically connect the gate and source of the drive transistor to a common initialization voltage during an initialization phase to reset circuit voltages for the current frame.

Abstract: A display apparatus can include a display panel configured to display images; a scan driver configured to supply scan signals to the display panel; a data driver configured to supply data voltages to the display panel; a timing controller configured to control the scan driver and the data driver; and a device controller configured to in response to receiving a frequency change signal, change a driving frequency of a device from a first frequency to a second frequency higher than the first frequency or change the driving frequency of the device from the second frequency to the first frequency, while maintaining widths of driving signals of the scan driver before and after the driving frequency is changed, in which the device includes at least one of the scan driver or the data driver.

Abstract: In some examples, an electronic device includes a display panel comprising a plurality of pixels; and a controller to, for achieving power saving at the electronic device, select a theme from a plurality of themes that specify respective different display characteristics of displayed content, the different display characteristics including different colors, and based on the selected theme, change a display characteristic of the displayed content, the changing of the display characteristic including changing a color displayed by a portion of the plurality of pixels from a first color to a second, different color.

Abstract: A liquid crystal display includes: a first substrate; a gate line and a reference electrode that are disposed on the first substrate and are spaced apart from each other; a gate insulating film disposed on the gate line and the reference electrode; a semiconductor disposed on the gate insulating film; a data conductor disposed on the semiconductor; a passivation film disposed on the data conductor; a color filter disposed on the passivation film; an overcoat disposed on the color filter; and a pixel electrode and a reference voltage line that are disposed on the overcoat and are spaced apart from each other, wherein the pixel electrode and the reference voltage line may include the same material, and the reference voltage line may be connected to the reference electrode through a reference voltage contact hole disposed in the gate insulating film, the passivation film, the color filter, and the overcoat.

Abstract: The disclosure discloses a line structure for a display screen including a display substrate, a main power supply line and two branch lines. The display substrate includes a display area and a non-display area. The main power supply line is used to transmit a negative signal power supply (VSS) signal, and a length of the main power supply line is less than a length of a long side of the display area, and two branch lines are electrically connected to an end of the main power supply line and extend toward opposite directions along a signal input side of the display area, respectively.

Abstract: Provided is a display device. The display device includes a display to display an image, a processor to control the display to display a predetermined image, a power supplier to generate a direct current (DC) power by receiving an alternating current (AC) power, and supply the generated DC power to each of the display and the processor, and a sensor to output a sensing signal corresponding to whether the AC power is input, and the display stops an image display operation according to the sensing signal.

Abstract: Context aware backlighting techniques include determining a focal point of a display space based on a user display context. The user display context represents an area of interest on the monitor. The user display context can be based on eye tracking data, ambient light data, motion sensing data, cursor location in the display space, an image content, proximity data, or the like and any combination thereof. A first set of one or more of a plurality of backlight sections corresponding to the determined focal point of the display space can be driven to output at a first intensity level, while a second set of one or more of the plurality of backlight sections can be driven to output at a second intensity level.

Abstract: A display device includes a driving transistor, an organic light emitting diode (OLED), a first switch, and a second switch. The driving transistor has a first terminal (e.g., a drain terminal) and a second terminal (e.g., a source terminal). The OLED includes a first terminal coupled to the second terminal of the driving transistor. The first switch is configured to couple the first terminal of the driving transistor to a first voltage (e.g., VDD) to turn on the OLED, and to couple the first terminal to an intermediate voltage to turn off the OLED. The second switch is configured to couple a second electrode of the OLED to a second voltage (e.g., VSS) to turn on the OLED, and to couple the second electrode of the OLED to the intermediate voltage to turn off the OLED. The intermediate voltage is in between the first voltage and the second voltage.

Abstract: A display device includes a first pixel area having first pixels and a second pixel area having second pixels. Each first pixel includes a driving transistor initialized to a voltage of a first initialization power supply. Each second pixel includes a driving transistor initialized to a voltage of a second initialization power supply. The first initialization power supply and the second initialization power supply are set to different voltages. The first pixel area and the second pixel area have different widths.

Abstract: An organic light emitting diode display device includes a panel in which a plurality of pixels are disposed, a power supplier configured to supply a current to the panel, and a controller configured to acquire information about the current supplied to the panel and perform an automatic current limit so that the current supplied to the panel is controlled to a preset current limit value or less. The controller is configured to adjust the current limit value based on the information about the current supplied to the panel.

Abstract: A pixel includes an organic light emitting diode, a first transistor, a second transistor, and a third transistor. The first transistor includes a first electrode, a second electrode, and a gate electrode and may control a current applied to the organic light emitting diode from a first power source, wherein the gate electrode is electrically connected to a first node. The second transistor is electrically connected between the organic light emitting diode and the second electrode of the first transistor and may turn on in response to a first emission control signal. The third transistor is electrically connected between the first power source and the first electrode of the first transistor and may turn on in response to a second emission control signal. The second transistor may turn on two or more times during one frame. The third transistor may turn on exactly once in the one frame.

Abstract: Provided is a display device that individually corrects luminance of an image to be displayed in a part of an image display area and an image to be displayed in the other area. The display device includes a display unit to display an entire image, and a luminance correction controller to correct luminance of the entire image. The entire image is an image in which a first image displayed in a first display area being an area except a second display area is superimposed by a second image displayed in the second display area that is set in a part of the image display area. The luminance correction controller respectively corrects the luminance of the first and second images by using the first and second luminance correction coefficients. The display unit displays first and the second images each having corrected luminance respectively in the first and second display areas.

Abstract: A touch screen panel includes a first touch electrode part, a second touch electrode part, a first touch router, a second touch router and plural third touch routers. The first touch electrode part includes plural first touch units. The second touch electrode part is substantially parallel to the first touch electrode part. The second touch electrode part includes plural second touch units. The first touch router is disposed adjacent to the first touch electrode part and is connected to one of an even-numbered first touch unit and an odd-numbered first touch unit of the first touch units. The second touch router is disposed adjacent to the first touch electrode part and is connected to the other of the even-numbered first touch unit and the odd-numbered first touch unit of the first touch units. The third touch routers are connected to each of the second touch units, respectively.

Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.

Abstract: A drive voltage supply circuit, a display panel, and a display device are provided. By supplying a drive voltage lower than a drive voltage for display driving in a period in which sensing deterioration of an organic light emitting diode disposed in each sub pixel, an operating voltage of the organic light emitting diode is kept constant and a degree of deterioration of the organic light emitting diode can be accurately sensed. By discharging the drive voltage supplied to the display panel and controlling a current flowing in the process of discharge before supplying the drive voltage for deterioration sensing, drive voltages of different levels can be stably supplied in a display driving period and a deterioration sensing period.

Abstract: The present disclosure relates to a power-off discharging circuit including a control circuit, an energy storage circuit and a switching circuit. An input terminal of the control circuit is coupled to a control signal terminal, and an output terminal is coupled to a first terminal of the energy storage circuit. A second terminal of the energy storage circuit is coupled to a first terminal of the switching circuit, of which a second terminal and a third terminal are coupled to a pull-up node and a first power supply voltage terminal of a gate driving circuit respectively. The control circuit controls charging and discharging of the energy storage circuit based on a control signal input on the control signal terminal when an Xon function is enabled. The switching circuit is configured to conductively connect or disconnected the pull-up node and the first power supply voltage terminal via charging or discharging.

Abstract: The display apparatus includes: N differential amplifiers having output ends, amplifying N input voltages and outputting amplified voltages, and a resistor ladder having N voltage supply points connected to the output ends of the N differential amplifiers and M voltage output points outputting M level voltages. The M voltage output points are connected to capacitive loads on input sides of the amplifiers, and at least one N differential amplifier has an input pair and an output end connected to one of the N voltage supply point. One of the N input voltages is received by one of the input pair, the other one of the input pair is connected to one of the M voltage output points outputting a level voltage closest to a voltage at the one voltage supply point. The one voltage supply point and the one voltage output point are at different positions on the resistor ladder.

Abstract: An organic light emitting display device can include a display panel that expresses brightness based on a driving current corresponding to a data voltage, a power source unit that supplies power to the display panel, and a controller configured that outputs a mode control signal for determining a normal mode and a standby mode, drives the display panel to display a first frame for a first time period in the normal mode based on the mode control signal, and drives the display panel to display a second frame for a second time period that is longer than the first time period in the standby mode based on the mode control signal, in which the power source unit supplies a compensation voltage to at least one pixel during the standby mode for compensating a change in the data voltage in the pixel.

Abstract: A power-off discharge circuit and an operation method of a display panel, and a display substrate are provided. The power-off discharge circuit includes a switching circuit and a power storage circuit. The switching circuit is coupled to the first transmission line and the second transmission line and configured to control a connection between the first transmission line and the second transmission line in response to a first control signal, and to control a connection between the second output terminal of the power management circuit and the second input terminal of the gate driving circuit in response to a second control signal. The power storage circuit is coupled to the first transmission line and configured to perform, in response to a power control signal, one of storing power transmitted from the first transmission line and supplying stored power to the first transmission line.

Abstract: Disclosed herein are systems and methods wherein the iris biometric of an individual person is acquired using a mobile or static device. This acquisition may involve the use of active illumination and repeated use of the camera and processor, as examples. These modules consume considerable power however, and this can significantly reduce battery life. There is a need therefore for a power-efficient iris recognition system.

Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.

Abstract: According to an aspect, a display apparatus includes: a plurality of pixels configured to display an image; a plurality of signal lines configured to supply pixel signals to the pixels; a plurality of detection conductors configured to be capacitively coupled to the signal lines; and a controller configured to output the pixel signals to the signal lines and read detection signals generated in the detection conductors due to the pixel signals.

Abstract: An organic light emitting display device includes a display panel, a gamma reference voltage generator, and a gamma voltage generator. The gamma reference voltage generator provides the data voltage having a predetermined voltage level to the display panel, changes brightness of the display panel by sequentially reducing the data voltage, determines a critical voltage by comparing a changing amount of the brightness to a predetermined reference changing amount of the brightness, and determines the gamma reference voltage based on the critical.

Abstract: A display substrate, a display device and a method for driving the same are provided. The display substrate includes a plurality of sub-regions. At least one subpixel unit, a common electrode voltage input line, a common electrode voltage control line and at least one control TFT are arranged at each sub-region. At each sub-region, a gate electrode of the control TFT is coupled to the common electrode voltage control line, a source electrode of the control TFT is coupled to the common electrode voltage input line, and a drain electrode of the control TFT is coupled to a common electrode of the subpixel unit.

Abstract: The present invention relates to a display apparatus and operational method therefor, and an electronic apparatus, and the display apparatus according to an embodiment of the present invention may comprise: a resonance circuit unit for generating voltage by means of inductive electromotive force generated due to an external apparatus; a capacitance variance unit for varying the capacitance (Cv) of the resonance circuit unit in order to control the resonance point thereof, the resonance point having been changed due to the distance from the external apparatus; and a display panel for implementing an image by means of the voltage.

Abstract: A projector includes a light source, a color wheel, a housing, a motor, a lens module, an optical detection module, and a feedback module. The light source is used for providing a light beam. The color wheel includes a plurality of optical filtering segments for generating light with a plurality of colors. The housing is connected to the color wheel. The housing has a timing mark. The motor is connected to the housing for rotating the color wheel through the housing. The lens module is used for outputting the light with the plurality of colors. When the housing is rotated, the optical detection module generates a pulse width modulation signal according variations of gray levels of the housing. The feedback module is coupled to the optical detection module for conditionally outputting an adjusted voltage to the optical detection module according to the pulse width modulation signal.

Abstract: A driving circuit of a liquid crystal display panel includes a substrate, a plurality of driver IC chips located on the substrate, a current supplier, and a first conductive wire set. The first conductive wire set has a plurality of conductive wire segments for connecting the driver IC chips in parallel to the current supplier. Furthermore, the conductive wire segments each have a form, such that paths formed of the conductive wire segments from the current supplier to the respective driver IC chips have an equal resistance, and, accordingly, each of the driver IC chips obtain the same input voltage. Hence, a problem of band mura is avoided.