Abstract: A method of positioning a laser pointer light source and a display device are provided. The method of positioning the laser pointer light source includes obtaining first position information and second position information of the laser pointer light source, obtaining first photosensitive information and second photosensitive information, and determining target position information. The present invention determines the target position information according to the first position information, the second position information, the first photosensitive information, and/or the second photosensitive information, which positions the laser pointer light source and distinquishes the laser pointer light source at different positions.

Abstract: The present application discloses a display panel and a photosensitive display device. The display panel includes a photosensitive array, an acquisition module, and a process module. The process module acquires target frame photosensitive data according to a difference result between a current frame photosensitive data and a previous frame photosensitive data, and deducts influence of background light or ambient light to the current frame photosensitive data, and then determines a current frame display coordinate of an external light source based on the target frame photosensitive data, which can improve accuracy of the current frame display coordinate.

Abstract: The present application discloses a display panel and a display device. The display panel includes a plurality of first scan lines, a plurality of second scan lines, a plurality of first read lines, a plurality of second read lines, and a plurality of sensing modules. The first scan lines and the second scan lines are alternately arranged and/or the first read lines and the second read lines are alternately arranged. The sensing modules are disposed at intersections of the first scan lines and the first read lines and intersections of the second scan lines and the second read lines.

Abstract: The present application discloses a display panel and a photosensitive display device. The display panel includes a photosensitive array, an obtaining module, and a processing module. The photosensitive array includes photosensitive units arranged in an array. The obtaining module is connected to the photosensitive units. The processing module is connected to the obtaining module. A photosensing data of the photosensitive array can be obtained through the obtaining module. The processing module can determine a display coordinate of external light according to the photosensing data, thereby achieving a remote photosensitive interaction of the display panel.

Abstract: The present application discloses a display panel and a photosensitive display device. The display panel includes a photosensitive array, an acquisition module, and a process module. The process module acquires target frame photosensitive data according to a difference result between a current frame photosensitive data and a previous frame photosensitive data, and deducts influence of background light or ambient light to the current frame photosensitive data, and then determines a current frame display coordinate of an external light source based on the target frame photosensitive data, which can improve accuracy of the current frame display coordinate.

Abstract: Provided are a positioning method for a laser pen light source, and a display apparatus. The positioning method for a laser pen light source comprises: acquiring first position information and second position information of a laser pen light source; acquiring first photosensitive information and second photosensitive information; and determining target position information. By means of the present invention, target position information is determined according to first position information, second position information, first photosensitive information and/or second photosensitive information, such that a laser pen light source is positioned, and laser pen light sources with different positions are distinguished.

Abstract: The present application discloses a logo extraction device, and a brightness adjusting method and device for a logo. The logo extraction device includes an acquiring module, a gray-scale converting module, a weight processing module, and an extraction module. In the present application, by increasing a number of key frames in a process of logo extraction and using video frame weighting, the logo is extracted and thereby accuracy of logo extraction is improved.

Abstract: The present application discloses a logo extraction device, and a brightness adjusting method and device for a logo. The logo extraction device includes an acquiring module, a gray-scale converting module, a weight processing module, and an extraction module. In the present application, by increasing a number of key frames in a process of logo extraction and using video frame weighting, the logo is extracted and thereby accuracy of logo extraction is improved.

Abstract: A gamma reference voltage generating circuit comprises a first gamma reference voltage generating module and a second gamma reference voltage generating module. The first gamma reference voltage generating module is configured to receive a source voltage signal, amplify the source voltage signal to obtain a first gamma reference voltage signal, and output the first gamma reference voltage signal to a source driving circuit. The second gamma reference voltage generating module is configured to receive the source voltage signal, step down the source voltage signal to obtain a second gamma reference voltage signal, and divide a current on the second gamma reference voltage generating module into two output currents and transmit the two output currents to the source driving circuit, or buck chop the source voltage signal to obtain the second gamma reference voltage signal and transmit the second gamma reference voltage signal to the source driving circuit.

Abstract: A gamma reference voltage generating circuit comprises a first gamma reference voltage generating module and a second gamma reference voltage generating module. The first gamma reference voltage generating module is configured to receive a source voltage signal, amplify the source voltage signal to obtain a first gamma reference voltage signal, and output the first gamma reference voltage signal to a source driving circuit. The second gamma reference voltage generating module is configured to receive the source voltage signal, step down the source voltage signal to obtain a second gamma reference voltage signal, and divide a current on the second gamma reference voltage generating module into two output currents and transmit the two output currents to the source driving circuit, or buck chop the source voltage signal to obtain the second gamma reference voltage signal and transmit the second gamma reference voltage signal to the source driving circuit.