A system includes a display panel with several pixels. A pixel includes a first, a second, and a third set of light emitting diodes (LED). Each LED in the first set outputs a first color light, each LED in the second set outputs second color light, and each LED in the third set outputs a third color light. The pixel emits a display light of a color that is a combination of the first, second, and third colors. In response to a driver inputting a first electric current to the first set of LEDs, a second electric current to the second set, and a third electric current to the third set, the display light from the pixel is of a predetermined target color, the first, the second, and the third electric current being substantially same and within a predetermined tolerance of each other.

Disclosed is a display apparatus. The display apparatus includes: display modules, each of which includes: a display panel composed of inorganic light emitting elements arranged in row lines, and sub-pixel circuits respectively corresponding to the inorganic light emitting elements; and a driver configured to drive the sub-pixel circuits in an order of the row lines based on a start signal provided from a timing controller. The timing controller is configured to: provide a first start signal to the driver of a first display module to control the inorganic light emitting elements to sequentially emit light from a first row line to a last row line, and provide a second start signal to the driver of a second display module to control the inorganic light emitting elements to sequentially emit light following an emission order of the inorganic light emitting elements included in the last row line of the first display module.

A light emitting diode device is provided and includes a first light emitting diode(LED) package emitting light to generate a first brightness. The first LED package includes a first diode being driven in response to a pulse width modulation (PWM) current to generate a first portion of the first brightness and a second diode being driven in response to a first direct current (DC) current to generate a second portion of the first brightness. In a first operation mode of the LED device, the first diode and the second diode are enabled to make the first brightness to reach a first value. In a second operation mode, different from the first operation mode, of the LED device, the second diode is disabled to reduce the brightness from the first value to a second value.

The present disclosure relates to a technology for performing a hybrid driving in order to increase accuracy of a low current driving when driving a light emitting diode and allows an LED driving circuit to perform a PWM driving when a current is low and to perform a PAM driving when a current is high and this leads to an elaborate adjustment of a grayscale.

A processor-based device with a display unit, such as a smart phone, identifies pixels associated with a camera under the display screen. The device also identifies a condition in which the pixels associated with the camera under the display screen can be dimmed or turned off. The device then dims or turns off the pixels associated with the camera under display based on the condition.

Provided are a display panel and a display device. The display panel includes a first light-emitting element, a second light-emitting element, a first driver circuit and a second driver circuit. The first driver circuit is electrically connected to the first light-emitting element and configured to provide a first drive current to the first light-emitting element to control the first light-emitting element to emit light, and the second driver circuit is electrically connected to the second light-emitting element and configured to provide a second drive current to the second light-emitting element to control the second light-emitting element to emit light. At least at a maximum grayscale, an average current value of the first drive current is greater than an average current value of the second drive current.

A display module including: a module substrate; a plurality of pixels provided on the module substrate; and a plurality of micro pixel controllers provided in spaces between the plurality of pixels, and configured to supply driving current to at least two pixels of the plurality of pixels, wherein each micro pixel controller of the plurality of micro pixel controllers includes a plurality of pixel circuits configured to, based on a first voltage and a second voltage being applied to the micro controller, control an amplitude of the driving current based on the first voltage and control a pulse width of the driving current based on the second voltage, and, based on the display module being in a power saving mode, the first voltage is adjusted to decrease a brightness of the plurality of pixels.

The present application relates to a lightness adjusting method for a display system. The method includes the steps of: writing a first driving signal into a display panel; controlling a first lens and a backlight module to be turned on simultaneously, where a plurality of light-emitting elements of the backlight module are turned on simultaneously, and the first lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; adjusting a first turn-on time of each light-emitting element; controlling a second lens and the backlight module to be turned on simultaneously, where the plurality of light-emitting elements of the backlight module are turned on simultaneously, and the second lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; and adjusting a second turn-on time of each light-emitting element.

A method includes determining a number of drive pulses of equal width and amplitude that would drive LEDs with a total charge during a frame. If the width of the drive pulses is greater than a minimum-width and less than a maximum-width, the LEDs are driven with the drive pulses. If the width of the drive pulses is less than the minimum-width and an amplitude of the drive pulses is greater than a minimum-amplitude, decrement the amplitude of the drive pulses and recalculate the width of the drive pulses so each drive pulse has the decremented amplitude and recalculated width. If the amplitude of the drive pulses is equal to the minimum-amplitude, reduce the number of drive pulses and recalculate the width and amplitude of the reduced number of drive pulses. If the amplitude of the drive pulses is equal to the minimum-amplitude, the LEDs are not driven.

The present application discloses a display panel driving circuit and a display panel. The display panel driving circuit includes a driving circuit and a light-emitting diode. The driving circuit is connected to the light-emitting diode. The driving circuit includes a plurality of superimposed driving modules, and a corresponding number of driving modules are selectively conducted according to a preset grayscale. Each driving module includes a scan control transistor, a switch transistor and a drive transistor, in each driving module the scan control transistor is connected to the drive transistor via the switch transistor, in each driving module a first end of the scan control transistor is connected to a scan signal terminal, and the light-emitting diode and the drive transistors of the driving modules are sequentially connected. The present application can better increase the number of grayscales, thereby improving image quality.