42results about How to "Improve Brightness Difference" patented technology

The embodiment of the invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a gate driving circuit, an initial signal line and n clock signallines, and n is greater than or equal to 3. The gate driving circuit comprises a plurality of cascaded shift registers. The output end of each shift register is at least electrically connected with one scanning line, wherein the first clock signal input end of the (kn + i)-th shift register is electrically connected with the i-th clock signal line, the second clock input end of the (kn + i)-th shift register is electrically connected with the (i + 1)-th clock signal line, k is greater than or equal to 0, and i is greater than or equal to 1 and less than or equal to n-1; the first clock signalinput end of the (m * n)-th shift register is electrically connected with the n-th clock signal line, and the second clock signal input end of the (m * n)-th shift register is electrically connected with the (m-1) n + 1 clock signal lines. According to the technical scheme, the data writing time of the pixel circuits in the upper and lower regions of the display panel tends to be consistent, and then the brightness difference of the upper and lower regions of the display panel is improved.

A color conversion apparatus includes: an original data analyzing unit configured to extract background color information of an original and color information of a character and line drawing object on the background; a background color changing unit configured to change the background color of the original when necessary, on the basis of the result of comparing the background color information acquired from the original data analyzing unit with a preset threshold value; and a character and line drawing color correcting unit configured to change lightness of the character and line drawing color in a way that increases a lightness difference between the background color for printing and the character and line drawing color on the background when necessary, on the basis of the background color information of the original acquired from the original data analyzing unit, the background color information for printing acquired from the background color changing unit, and the character and line drawing color information on the background acquired from the original data analyzing unit. The color conversion apparatus contributes to saving of color material, reduction in load on a printer engine, prevention of stripping of color material, and prevention of deformation of paper.

The invention provides a driving load compensation unit, method and module and a display device. The driving load compensation unit includes a load compensation control subunit and a resistance-capacitance (RC) load subunit. The RC load subunit includes N switch modules and N RC load modules, where N is an integer greater than 1. A first end of the n-th switch module is connected with a first endof the n-1-th RC load module, and a second end of the n-th switch module is connected with a second end of the n-th RC load module, where n is an integer greater than 1 and less than or equal to N. The load compensation control subunit generates a first load compensation control signal and an n-th load compensation control signal. The n-th switch module is used for controlling the on or off of theconnection between the first end of the n-th switch module and the second end of the n-th switch module under the control of the n-th load compensation control signal. According to the invention, theproblem of difference in luminance resulting from uneven pixel driving currents in main and sub display areas is solved.

A TV set including a liquid crystal panel, a processor-readable storage medium storing instruction units for providing the TV set functions to control backlight of the liquid crystal panel; and one or more processors in communication with the storage medium to execute the instruction units, wherein the instruction units include: an image information amount determining unit (102); the backlight gain retrieving unit (104); a backlight value extracting unit (106); the backlight value processing unit (108); and a backlight value transmitting unit (110). Correspondingly a method of controlling backlight of a liquid crystal panel is further disclosed. In the technical solution of the disclosure, a backlight modulation coefficient can be modulated dynamically according to the amount of image information to perform backlight enhancement on an image with a large amount of information.

A color conversion apparatus includes: an original data analyzing unit configured to extract background color information of an original and color information of a character and line drawing object on the background; a background color changing unit configured to change the background color of the original when necessary, on the basis of the result of comparing the background color information acquired from the original data analyzing unit with a preset threshold value; and a character and line drawing color correcting unit configured to change lightness of the character and line drawing color in a way that increases a lightness difference between the background color for printing and the character and line drawing color on the background when necessary, on the basis of the background color information of the original acquired from the original data analyzing unit, the background color information for printing acquired from the background color changing unit, and the character and line drawing color information on the background acquired from the original data analyzing unit. The color conversion apparatus contributes to saving of color material, reduction in load on a printer engine, prevention of stripping of color material, and prevention of deformation of paper.

A display panel and a driving method thereof are disclosed. The display panel comprises a plurality of pixel rows, a plurality of data lines and a plurality of gate lines. Each of the pixel rows includes pairs of first and second pixels adjacent to each other. The data lines are positioned between the first and the second pixels, respectively. The gate lines include first, second, third and fourth gate lines arranged in an alternating manner. The method comprises the following steps: turning on the gate lines in a sequence of first, second, fourth and third gate lines; and transmitting the data signal to the pixels through the data lines. The panel is applicable to an LCD panel and an LCD apparatus.

The invention discloses a display panel, a display method thereof and display equipment. The display panel comprises a flat display part and a bent display part., a A first thin film transistor is arranged in the flat display part, a second thin film transistor is arranged in the bent display part, and the ratio of the channel width to the channel length of an the active layer of the first thin film transistor is larger than the ratio of the channel width to the channel length of an the active layer of the second thin film transistor; the display method comprises the steps of enabling the luminous intensity of the bent display part to be greater than the luminous intensity of the flat display part in a manner that the ratio of the channel width to the channel length of the active layer ofthe second thin film transistor is smaller than the ratio of the channel width to the channel length of the active layer of the first thin film transistor; the display equipment comprises the displaypanel. According to the invention, tThe problem of brightness difference between the bent area and the flat area of the display with the bent edge can be remarkably improved, so that a user feels thatthe brightness of the bent area and the brightness of the flat area tend to be the same or completely the same, and the user experience is remarkably improved.

The present invention relates to a plasma display panel and, more particularly, to an apparatus and a method of driving a plasma display panel. According to the present invention, an apparatus for driving a plasma display panel includes a line buffer unit synchronizing data inputted from outside with a horizontal synchronization signal to store per horizontal line, at least one comparison unit comparing loads included in horizontal lines stored in the line buffer unit, and a data converting unit correcting the data to be supplied to the horizontal lines using a load difference resulting from a comparison by the at least one comparison unit. According to the present invention, a method of driving a plasma display panel includes the steps of detecting loads included in externally inputted data to be supplied to at least two adjacent horizontal lines and correcting the data to be supplied to each of the at least two adjacent horizontal lines according to a load difference between the at least two adjacent horizontal lines. Accordingly, the loads included in the previous and current lines are computed to correct the data to be supplied to the lines according to the load difference between the respective lines, respectively. Therefore, the present invention enables to correct the brightness difference between the horizontal lines and to prevent power dispersion of the heavily-loaded horizontal line.

The present invention discloses an image preprocessing method capable of increasing the accuracy of face detection by enhancing the contrast between dark pixels and their surrounding bright pixels, and increasing the brightness difference between dark pixels and bright pixels. Even in insufficient and non-uniform lighting conditions, the eye-analogue segments of a human face are obvious; so as to make a subsequent algorithm using eye-analogue segments for detecting human faces and producing more accurate results.

The present invention provides a liquid crystal display (LCD) panel and a display apparatus using the same. The LCD panel comprises a first substrate, a second substrate and a liquid crystal layer. The second substrate comprises pixels, wherein, when images are displayed by the pixels, a voltage difference between a first voltage of the first sub-pixels and a second voltage of the second sub-pixels is inversely proportional to a grayscale of the images displayed by the pixels, and the first voltage is higher than the second voltage. The present invention can mitigate the viewing angle problem of the pixels.

The present invention relates to a flexible display substrate and a flexible display device for solving the problem that the bending of a traditional flexible display substrate may makes the regions differ in brightness. The flexible display substrate includes a flexible substrate, a plurality of TFT structures and a plurality of OLED devices disposed on the flexible substrate, and a variable resistor disposed between the at least one OLED device and the corresponding TFT structure and having a strained resistance effect. One end of the variable resistor is electrically connected with the anode of the OLED device, and the other end of the variable resistor is electrically connected with the source electrode or the drain electrode of the TFT structure; the flexible display substrate is bent towards the backlight side, and the resistance value of the variable resistor increases; and when the flexible display substrate is bent towards the light incident side, the resistance value of the variable resistor is reduced. Since the resistance value of the variable resistor can change with the deformation of the flexible display substrate when the flexible display substrate is bent, the brightness of the different regions of the display substrate can be improved by the change of the resistance value.

The invention discloses a signal control method, which is suitable for display image of an update panel. The signal control method comprises steps that the display image is updated by using first image data; whether second image data is received is determined; when the second image data is not received, internal signals are generated selectively; the internal signals are used to enable a shift register, and the process return to the first step of updating the display image by using the first image data. When starting signals and the second image data are received, the starting signal are used to enable a plurality of shift register units of the shift register, and then a plurality of grid electrode signal lines of the panel are sequentially enabled, and the display image is updated by the second image data.

This invention relates to feedback sample control circuit used in one lamp driving system, which comprises one switch device and one current valid value-sampling controller. The switch device is coupled to the lamp driving system feedback route. The current valid value sample controller can control the switch through the voltage or current signals from one end of the lamp and also can control the real sampling valid value in the feedback controller of the lamp driving system to minimize the stray capacity current in the current valid value.

The invention provides a brightness adjustment device, system and method of a PMOLED display module, and relates to the display field. The technical problem that the existing PMOLED display module haslarge brightness difference and poor uniformity can be alleviated. The device comprises a flexible circuit board, a display driving chip and a display panel, which are connected in sequence, whereinthe flexible circuit board is used for receiving a brightness instruction sent by an MCU and transmitting the brightness instruction to the display driving chip; a level adjustment module is arrangedon the flexible circuit board; the level adjustment module is used for generating a level value corresponding to brightness adjustment ratio data and outputting the level value to the display drivingchip; the brightness adjustment ratio data are determined by the factory brightness and the target brightness of the display module; and the display driving chip is used for generating a brightness driving signal based on the level value and the brightness instruction and outputting the brightness driving signal to the display panel. The device can improve the brightness difference of the PMOLED display module and improve the uniformity.

The embodiment of the invention discloses an array substrate and a display panel. In the same picture frame, one of first data lines or second data lines are used for accessing positive polarity signals, and the other of the first data lines and the second data lines are used for accessing negative polarity signals; first pixel electrodes are electrically connected to the first data lines, and second pixel electrodes are electrically connected to the second data lines; first shared electrodes are used for accessing signals with the same polarity as the first data lines, and first sub-pixel electrodes are connected to the first shared electrodes through first shared thin film transistors; and second shared electrodes are used for accessing signals with the same polarity as the second data lines, and second sub-pixel electrodes are connected to the second shared electrodes through second shared thin film transistors. According to the embodiment of the invention, the voltage difference between the first sub-pixel electrodes and the second sub-pixel electrodes is improved, so that the brightness difference between the pixels corresponding to the first pixel electrodes and the pixels corresponding to the second pixel electrodes in the same picture frame reduces the risk of shaking lines.

The invention provides a preparation method of a detection sample. The preparation method comprises the following steps: providing a semiconductor structure, wherein the semiconductor structure comprises a first connecting piece and a barrier layer located on the surface of the first connecting piece, the diffusion coefficient of the barrier layer is smaller than that of the first connecting piece, and atomic density difference between a dielectric layer and the barrier layer is larger than that between the first connecting piece and the barrier layer; performing section faultage treatment on the semiconductor structure to form a section film; performing diffusion treatment on the section film. By means of the diffusion treatment on the section film, the first connecting piece with larger diffusion coefficient is diffused into the dielectric layer. Besides, the atomic density difference between the dielectric layer located on a second side of the section film and the barrier layer is larger than that between the first connecting piece and the barrier layer. Therefore, after an image is formed by the detection sample, the definition of an image formed on the side wall of the barrier layer can be improved, and detection difficulty can be reduced.

The invention provides a display substrate. The display substrate comprises a substrate base plate and a plurality of pixel units located on the substrate base plate. Each pixel unit comprises two first sub-pixels, a second sub-pixel and a third sub-pixel, each sub-pixel comprises a storage capacitor which comprises a first polar plate and a second polar plate which are oppositely arranged, through holes are formed in the second polar plates, and the first sub-pixels further comprise shielding metal structures arranged corresponding to the through holes; in the first sub-pixels, the shieldingmetal structures are connected with the second polar plates; the orthographic projections of the second polar plates and the shielding metal structures on the substrate base plate cover the orthographic projections of the first polar plates on the substrate base plate, and the orthographic projections of the shielding metal structures on the substrate base plate cover the orthographic projectionsof the through holes on the substrate base plate. The invention further provides a display device.

[Problem]The object of the present invention is to provide a static electricity distribution-visualizing material, a static electricity-visualizing film, a static electricity distribution-visualizing device, and a static electricity distribution-visualizing method, which can visualize a charged state to be seen with naked eyes so as to intuitively understand a static electricity distribution.[Solution]A static electricity distribution-visualizing material is manufactured so as to contain at least one of a fluorescent substance, a luminescent substance, an electroluminescent substance, a fractoluminescent substance, a photochromic substance, an afterglow substance, a photostimulated luminescent substance and a mechanoluminescent substance.

The embodiment of the invention provides a display panel and electronic equipment, and relates to the technical field of display. The thickness of the first filtering part, corresponding to the main display area, of the color filtering layer is different from the thickness of the second filtering part, corresponding to the transparent display area, of the color filtering layer, and the light transmittance of the main display area and the transparent display area is controlled through the thicknesses of the different filtering parts. In this way, the brightness difference between the light emitted by the main display area and the light emitted by the transparent display area can be improved, so that when the main display area and the transparent display area are used for displaying at the same time, a user cannot distinguish the two from the display brightness of the main display area and the display brightness of the transparent display area, and the use experience of the user is improved. In addition, the color filter layer is adopted, so that the light reflection prevention effect of the polaroid can be achieved, the polaroid can be omitted, the manufacturing cost of the product is saved, and the market competitiveness of the product is improved.

The present invention relates to an active organic electroluminescent display panel and its manufacturing method, wherein the active organic electroluminescent display panel includes a substrate, a pixel structure layer, an organic light emitting layer and a cathode pattern layer, wherein the pixel structure layer is configured on the substrate, and the pixel structure layer includes an active element array and an anode pattern layer. The organic light-emitting layer covers at least the anode pattern layer, wherein the organic light-emitting layer includes at least one first organic light-emitting pattern, at least one second organic light-emitting pattern and at least one third organic light-emitting pattern. The cathode pattern layer is arranged on the organic light-emitting layer, wherein the cathode pattern layer includes a first cathode pattern correspondingly arranged on the first organic light-emitting pattern, a second cathode pattern correspondingly arranged on the second organic light-emitting pattern, and a corresponding arrangement A third cathode pattern on the third organic light emitting pattern, and the first, second and third cathode patterns are not connected together.

A light guiding system, an edge-type backlight module and a liquid crystal display are disclosed. The light guiding system includes an ambient light collection system facing toward ambient light for absorbing the ambient light, a plurality of light guiding devices, and a fluorescent film arranged between the light emitting ends and the light incident surface. Each of the plurality of light guiding devices includes a light emitting end and a light incident end. The light emitting ends are arranged close to a light incident surface of a light guiding plate, and the light incident ends are arranged close to the ambient light collection system. The absorbed ambient light enters the light incident ends and propagates toward the light emitting ends. By adopting the fluorescent film, the light beams from the light emitting ends are diffused such that brightness difference on the light incident surface is enhanced.

An electronic device according to an embodiment may include a first camera module, and a flash module disposed adjacent to the first camera module, where the flash module may include an LED configured to emit light, and an optical lens disposed in the traveling direction of the light emitted from the LED. The optical lens may include a first surface in the direction facing the LED and a second surface in the direction opposite the first surface, and the second surface of the optical lens may include a first translucent area including a central area where the light emitted from the LED is incident and a second translucent area spaced apart from the first translucent area. Various other embodiments may be also provided.