A display apparatus capable of image capturing with high sensitivity is provided. The display apparatus is configured to include first to third switches, a first transistor, a second transistor, and a light-emitting/receiving element. The first switch is electrically connected to a gate of the first transistor. The second switch is positioned between one of a source and a drain of the first transistor and one electrode of the light-emitting/receiving element. The third switch is positioned between the one electrode of the light-emitting/receiving element and a gate of the second transistor. The other of the source and the drain of the first transistor is supplied with a first potential. The other electrode of the light-emitting/receiving element is supplied with a second potential. The light-emitting/receiving element has a function of emitting light of a first color and a function of receiving light of a second color.

Provided are a projector playing control method, device, and computer storage medium, for addressing the problem in the prior art of inconvenient user operation caused by a display screen of the projector being used as an operation screen while a file is displayed on the operation screen. The projector control method comprises: when the projector receives a playing instruction, setting an icon corresponding to an application used to play the file as the content to be displayed on the operation screen of the projector, and displaying the icon, the icon being used to generate a control instruction according to the user operation, thus controlling the playing of the content outputted by a light source of the projector.

A display circuit and a control method therefor are shown. The display circuit includes: a lamp bead array, a column-oriented drive switch array, a row-oriented drive switch array and a common-anode discharge control circuit, wherein one end of the common-anode discharge control circuit is connected to second ends of lamp beads, in a row direction, in the lamp bead array, and the other end of the common-anode discharge control circuit is grounded; the common-anode discharge control circuit includes a constant current source, a diode and a resistor; a first end of the diode is connected to the second ends of the lamp beads, in the row direction, in the lamp bead array, a second end of the diode is connected to a first end of the constant current source, and the second end of the diode is connected to a first end of the resistor; and a second end of the resistor and a second end of the constant current source are connected to a power supply, and a grounded end of the constant current source is grounded.

A display circuit and a control method therefor are shown. The display circuit includes: a lamp bead array, a column-oriented drive switch array, a row-oriented drive switch array and a common-anode discharge control circuit, wherein one end of the common-anode discharge control circuit is connected to second ends of lamp beads, in a row direction, in the lamp bead array, and the other end of the common-anode discharge control circuit is grounded; the common-anode discharge control circuit includes a constant current source, a diode and a resistor; a first end of the diode is connected to the second ends of the lamp beads, in the row direction, in the lamp bead array, a second end of the diode is connected to a first end of the constant current source, and the second end of the diode is connected to a first end of the resistor; and a second end of the resistor and a second end of the constant current source are connected to a power supply, and a grounded end of the constant current source is grounded.

A display device including pixels and column drivers configured to supply an image signal to the pixels is provided. The column drivers includes: an input node and an output node; an amplifier arranged between the input node and the output node; an offset signal holding unit arranged between the input node and the amplifier and configured to suppress a difference in offset of the amplifier among the column drivers; a current supply unit including a first terminal connected to the input node and a second terminal connected to the output node and configured to supply a current to the output node based on a voltage at the first terminal and the second terminal; and a switch arranged between the input node and the first terminal. The offset signal holding unit and the switch are connected in parallel to the input node.

A display device including pixels and column drivers configured to supply an image signal to the pixels is provided. The column drivers includes: an input node and an output node; an amplifier arranged between the input node and the output node; an offset signal holding unit arranged between the input node and the amplifier and configured to suppress a difference in offset of the amplifier among the column drivers; a current supply unit including a first terminal connected to the input node and a second terminal connected to the output node and configured to supply a current to the output node based on a voltage at the first terminal and the second terminal; and a switch arranged between the input node and the first terminal. The offset signal holding unit and the switch are connected in parallel to the input node.

A colorblind video adapter may include four difference amplifiers. A first difference amplifier may amplify a red signal relative to a green signal to create a red contrast signal, while a second difference amplifier may amplify the green signal relative to the red signal to create a green contrast signal. Outputs from the first two difference amplifiers may be provided to a second two difference amplifiers. The third difference amplifier may sum the red input signal and the red contrast signal to create a red output signal, while the fourth difference amplifier may sum the green input signal and the green contrast signal to create a green output signal.

A colorblind video adapter may include four difference amplifiers. A first difference amplifier may amplify a red signal relative to a green signal to create a red contrast signal, while a second difference amplifier may amplify the green signal relative to the red signal to create a green contrast signal. Outputs from the first two difference amplifiers may be provided to a second two difference amplifiers. The third difference amplifier may sum the red input signal and the red contrast signal to create a red output signal, while the fourth difference amplifier may sum the green input signal and the green contrast signal to create a green output signal.

The present invention provides a display device and a manufacturing method thereof. The display device includes a display panel, a driving chip and a flexible circuit board. The driving chip is electrically connected to the flexible circuit board and the display panel. The display panel includes a display area and a connecting area disposed on one side of the display area. The driving chip and the flexible circuit board are disposed in the connecting area, and the driving chip and the flexible circuit board at least partially overlap. By setting the driving chip and the flexible circuit boards are at least partially overlapped, which can reduce width of frame of the display device, increase screen ratio of the display device, and realize narrow frame display.

The present invention provides a display device and a manufacturing method thereof. The display device includes a display panel, a driving chip and a flexible circuit board. The driving chip is electrically connected to the flexible circuit board and the display panel. The display panel includes a display area and a connecting area disposed on one side of the display area. The driving chip and the flexible circuit board are disposed in the connecting area, and the driving chip and the flexible circuit board at least partially overlap. By setting the driving chip and the flexible circuit boards are at least partially overlapped, which can reduce width of frame of the display device, increase screen ratio of the display device, and realize narrow frame display.