WO2016106790A1 - 图像均匀性显示的方法及显示器 - Google Patents
图像均匀性显示的方法及显示器 Download PDFInfo
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- WO2016106790A1 WO2016106790A1 PCT/CN2015/070187 CN2015070187W WO2016106790A1 WO 2016106790 A1 WO2016106790 A1 WO 2016106790A1 CN 2015070187 W CN2015070187 W CN 2015070187W WO 2016106790 A1 WO2016106790 A1 WO 2016106790A1
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- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Definitions
- the present invention relates to the field of display, and in particular to a method and display for image uniformity display.
- the touch screen also known as the touch panel, is an inductive liquid crystal display device that can receive input signals such as finger touches.
- the tactile feedback system on the screen can be scanned according to a preset driving mode. Determine the position of the touched action, further determine the button of the clicked graphic, and determine the type of the instruction.
- the touch screen is more convenient than the prior art mechanical button panel, and thus has been widely used.
- the projected capacitive touch screen is one of the commonly used touch screens, and the touch technology that utilizes the capacitance change generated when the finger is close to the capacitive touch panel includes self-capacitive touch technology and mutual capacitive touch technology. In-line touch technology and in-line touch technology are also included, while in-cell touch technology includes In-cell touch technology and On-cell touch technology. With the development of touch screen technology, In-cell technology has gradually become the mainstream technology of small and medium-sized touch screens. By integrating the touch electrodes into the cell, the same controller IC uses the principle of time division multiplexing to separately image signals and touch screens. The signal is processed so that the thickness and weight of the touch display panel are all reduced to some extent.
- the existing In-cell touch technology includes the Hybrid In-Cell touch technology and the Full In-Cell touch technology. Since the Full In-Cell touch technology has a relatively simple structure, it has become a development trend of the touch display technology. However, the Full In-Cell touch technology integrates the touch electrodes into the common electrode of the array substrate. Inevitably, the structure is relatively complicated compared to the simple display panel, and the wires connected to the same electrode are relatively increased, and the display screen is relatively The space is indeed limited, and the distribution space of the signal line is also limited. Therefore, in a limited space, the lengths of the wires connecting the pixel electrode and the common electrode of the array substrate are not equal, and the voltages finally loaded on the liquid crystal pixels are not equal. Therefore, the displayed picture is not uniform.
- the liquid crystal pixel voltages in the Full In-Cell display are equal by connecting the driving electrodes and the adjacent common electrodes through the switching transistors, but the above method not only needs to improve the manufacturing process of the array substrate itself, but also needs Adding additional transistors not only makes the Full In-Cell display The structure is more complicated and also increases the cost of the transistor.
- the technical problem to be solved by the present invention is to provide a method and a display for image uniformity display, which can effectively improve the uniformity of a display image without changing the structure of the Full In-Cell display.
- a technical solution adopted by the present invention is to provide a method for displaying image uniformity, which is used for a Full In-Cell display, including:
- the display inputs a first image signal
- the display device includes a color filter substrate, an array substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate, wherein a touch electrode is disposed on a side of the array substrate facing the liquid crystal layer, wherein The touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate;
- the compensation data is determined by the difference between the grayscale information of the first image signal and the grayscale information of the original second image signal corresponding to the first image signal, and the array substrate of the display is determined.
- the third image signal is displayed.
- the step of performing compensation on the first image signal according to the image compensation data to obtain the third image signal specifically includes:
- another technical solution adopted by the present invention is to provide a method for displaying image uniformity, which is used for a Full In-Cell display, including:
- the display acquires a first image signal of an image displayed on the screen thereof;
- the display includes a color film substrate disposed opposite to each other, an array substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate, wherein the array substrate is provided with a touch electrode on a side of the liquid crystal layer
- the touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate;
- the compensation data is stored.
- the step of comparing the first image signal with the original second image signal corresponding to the first signal, and determining the compensation data of the first image signal specifically includes:
- the display calculates a difference between gray scale information of the first image signal and gray scale information of a second image signal corresponding to the first image signal output by the signal source, and determines a common corresponding to the difference An offset of the electrode voltage, and determining compensation data of the first image signal according to the offset.
- the step of acquiring the first image signal of the image displayed by the screen specifically includes:
- the display acquires a first image signal of an image displayed on a screen thereof from the detecting device; wherein the detector obtains the first image signal by taking an image of the image displayed on the screen.
- the detecting device comprises a charge coupled CCD camera device.
- a Full In-Cell display with image uniformity display including: an electrically connected driving circuit, a compensation circuit, and a display panel.
- the display panel includes a color film substrate disposed opposite to each other, an array substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate, wherein the array substrate is disposed on a side of the liquid crystal layer to provide a touch electrode, wherein The touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate;
- the driving circuit is configured to input a first image signal
- the compensation circuit is configured to compensate the first image signal according to image compensation data to obtain a third image signal
- the compensation data is determined by the difference between the grayscale information of the first image signal and the grayscale information of the original second image signal corresponding to the first image signal, and the array substrate of the display is determined.
- the display panel is configured to display the third image signal.
- the compensation module is specifically configured to compensate a voltage of an input signal of a pixel electrode corresponding to the common electrode according to an offset of a voltage of a common electrode of the array substrate, so as to input an input signal of the pixel electrode
- the voltage difference between the voltage and the voltage of the common electrode is equal to obtain the third image letter number.
- the invention has the beneficial effects that the display of the present invention compensates the first image signal according to the compensation data after inputting the first image signal to obtain a third image signal, wherein the compensation data is different from the prior art.
- Determining a voltage deviation of a common electrode of the array substrate of the display according to a difference between gray scale information of the first image signal and gray scale information of the original second image signal corresponding to the first image signal The shifting amount is such that the voltage difference between the input signal voltage of each pixel electrode of the display and the common electrode voltage is equal, thereby effectively improving the uniformity of the display image without changing the structure of the existing Full In-Cell display and increasing the cost. Improve the user's viewing experience.
- FIG. 1 is a schematic flow chart of an embodiment of a method for displaying image uniformity according to the present invention
- FIG. 2 is a schematic structural view of an embodiment of the display of FIG. 1;
- FIG. 3 is a diagram showing a comparison effect of voltage before and after compensation in the display phase of the first image signal of the present invention
- FIG. 4 is a view showing a contrast effect of brightness before and after compensation of the first image signal display stage of the present invention
- FIG. 5 is a schematic flow chart of another embodiment of a method for displaying image uniformity according to the present invention.
- FIG. 6 is a schematic structural view of an embodiment of a Full In-Cell display of the present invention.
- FIG. 7 is a schematic structural view of another embodiment of a Full In-Cell display of the present invention.
- Figure 8 is a block diagram showing the structure of an embodiment of the image uniformity display of the present invention.
- FIG. 1 is a schematic flow chart of an embodiment of a method for displaying image uniformity according to the present invention.
- the method for displaying the image uniformity of the present embodiment is applied to a Full In-Cell display, and may be applied to other types of displays in other embodiments, which is not limited herein.
- the image display method of this embodiment includes:
- the display inputs a first image signal.
- the display When the display shows an image, it needs to be connected to the signal source first, and input the first image signal that needs to be displayed.
- FIG. 2 is a schematic structural view of an embodiment of the display of FIG. 1.
- the display of the present embodiment is a Full In-Cell display, and specifically includes a color film substrate CF 201, an array substrate Array 202, and a liquid crystal layer LC 203 disposed between the color filter substrate 201 and the array substrate 202.
- the electrode 304 is combined with the common electrode Array Vcom of the array substrate 302, and is located in the array.
- the inner side of the substrate 302, that is, the side facing the liquid crystal layer 303, is arranged in a matrix on the array substrate 302.
- the display realizes the control of the touch signal and the display signal by means of time division multiplexing, that is, the time of each frame is divided into two time periods for respectively transmitting and processing the display signal and the touch signal, when the display is in the display
- all the common electrodes of the array substrate 202 are short-circuited together, and the liquid crystal molecules 203 are controlled to be deflected, so that the pixel electrode mode has a pressure difference. If the pressure difference at each pixel electrode is equal, then the display screen is on the display screen. Display a uniform image.
- the compensation data is stored in the display.
- the lengths of the wires connecting the pixel electrode and the common electrode of the array substrate 202 are not equal, that is, the wires of the farther and closer wires.
- the resistance values are not equal.
- the voltages of the wires with different resistance values are different.
- the voltage values applied to the common electrode terminals of each array substrate are not the same, that is, the Vcom drift occurs.
- the voltage values at the common electrode terminals of the array substrate 202 are not the same.
- the display In order to make the input first image signal uniformly displayed on the display, it is ensured that the voltage difference between the voltage of the input signal loaded at each end of each pixel electrode and the voltage of the common electrode of the array substrate 202 is a fixed value, and the display inputs the first image. After the signal, the first image signal is compensated to obtain a third image signal.
- the compensation data is determined by the difference between the grayscale information of the first image signal and the grayscale information of the original second image signal corresponding to the first image signal, and the array substrate of the display is determined.
- the offset of the voltage of the common electrode is determined by the difference between the grayscale information of the first image signal and the grayscale information of the original second image signal corresponding to the first image signal, and the array substrate of the display is determined.
- the compensation data includes compensation data of each region of the display image corresponding to the first image signal, and the display compensates each of the regions that are unevenly displayed, for example, to obtain a uniform third image signal after being compensated.
- the compensation data of the relative gray level of the first position at this time is Is 5.
- the actual gray level of the first image signal at the second position is 128, and the gray level here should be 131 to be consistent with the display brightness of the image at other positions, and the compensation data for the relative gray level of the second position is 3, Therefore, both the first position and the second position image need to be increased in gray scale.
- the actual gray level of the first image signal at the third position is 250, and the gray level here should be 246 to be able to
- the display brightness of the image of the position remains the same, so the compensation data of the relative gray level of the third position is -4, that is, the third position needs to lower the gray scale.
- the grayscale of the image is determined by the voltage difference applied to the pixel electrode.
- the embodiment adopts a method of compensating the voltage of the input signal terminal of the pixel electrode to ensure that the voltage differences of all the pixel electrodes are equal.
- the display compensates the voltage of the input information of the pixel electrode corresponding to the common electrode according to the offset of the common electrode voltage, and how much the voltage value of the common electrode end is offset, and how much the voltage of the input signal of the pixel electrode is compensated So that the voltage of the input signal of the pixel electrode is equal to the voltage difference of the common electrode voltage.
- the solid line Vdata represents the voltage of the input signal of the pixel electrode before compensation, which is a constant value
- the solid line Vcom represents the common electrode voltage before compensation.
- the A region and the D region The common electrode voltages have an absolute value equal to each other, and the positive and negative offsets ⁇ V, that is, the voltage of the input signal of the pixel electrode of the A region needs to be compensated for - ⁇ V, and the voltage of the input signal of the pixel electrode of the D region needs to be compensated.
- FIG. 4 is a graph showing the contrast effect of the brightness before and after the compensation of the first image signal display phase.
- the compensated third image signal corresponding to the first image signal is displayed.
- the Full In-Cell display of the present embodiment compensates the first image signal according to the compensation data to obtain a third image signal, wherein the compensation data is according to the a difference between the gray scale information of the first image signal and the gray scale information of the original second image signal corresponding to the first image signal, and the offset of the voltage of the common electrode of the array substrate of the display is determined
- the voltage difference between the input signal voltage and the common electrode voltage of each pixel electrode of the display is equal, thereby effectively improving the uniformity of the display image and improving the viewing experience of the user without changing the structure of the existing Full In-Cell display.
- FIG. 5 is a schematic structural diagram of another embodiment of a method for displaying image uniformity according to the present invention.
- Ben The image uniformity display method of the embodiment is used for a Full In-Cell display. In other embodiments, it may be applied to other displays, which are not limited herein.
- the image uniformity display method of the present embodiment includes the following steps:
- the display acquires a first image signal of an image displayed on its screen.
- the display is a Full In-Cell display, comprising a relatively disposed color film substrate, an array substrate, and a liquid crystal layer disposed between the color film substrate and the array substrate, the array substrate facing the liquid crystal layer
- the touch electrodes are disposed on one side of the array, and the touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate.
- the user enjoys the image displayed on the screen of the display with the touch display function, if the brightness of the display screen is uniform, the user can enjoy the image with better quality, but when the brightness of the display screen is uneven, the normality of the user is affected. Watch.
- the image signal displayed on the displayed screen is photographed by the detecting device to obtain a first image signal.
- the display acquires the first image signal by using a detecting device.
- Whether the brightness of the screen display is uniform or not is determined by whether the gray scale of the image display is consistent, and the gray scale of the display is determined by the input voltage of the pixel electrode and the voltage difference on the common electrode, when the input voltage of each pixel electrode
- the pressure difference on the common electrode is equal, the angle of the liquid crystal molecules is controlled to be the same, and the light transmittance is the same.
- the brightness displayed on the screen is the same, that is, the brightness of the display screen is uniform.
- the factor that affects whether the brightness of the display screen is uniform is the gray level of the image. Therefore, after the first image signal is acquired from the detecting device, the display acquires the gray level information of the first image signal, wherein the same Information is acquired in all parts of the screen.
- the detection device includes a high-frequency camera, such as a CCD camera. Any device that can acquire the first image signal can be used as the detection device of the present embodiment, which is not limited thereto.
- the first image signal After the first image signal is received by the display, the first image signal is used as a reference object, and the first The image signal is compared with the original second image signal output by the data source to determine compensation data of the first image signal, that is, compensation data of the input signal voltage of the corresponding pixel electrode.
- the display calculates, by the driving controller, a difference between the grayscale information of the first image signal and the grayscale information of the corresponding second image signal, including the grayscale information of each region of the first image signal and the second image.
- the corresponding regions in the signal are compared to determine whether the grayscale information of each region of the first image signal is consistent with the grayscale information of the second image signal.
- the gray scale information is deviated due to the unequal difference between the input voltage of the pixel electrode and the common electrode, resulting in different angles of deflection of the liquid crystal molecules, resulting in the input voltage of the pixel electrode and the common electrode.
- the direct cause of the unequal pressure difference is that due to the current offset of the common electrode voltage, the larger the offset, the larger the variation of the voltage difference between the input voltage of the pixel electrode and the common electrode, and the more serious the problem of display unevenness ,therefore,
- the gray scale information of the first image signal is inconsistent with the gray scale information of the second image signal, further acquiring an offset of the common electrode voltage corresponding to the first image signal, and determining compensation of the first image signal according to the offset amount data.
- the display of the display Since the display of the display is completed, each of the tiny electrodes and other components will generally not change again, in order to overcome the inevitable shift of the common electrode voltage of the array substrate caused by the structure during the use of the display.
- the display stores the above compensation data, and compensates for the first image signal to be displayed, so that when any type of first image signal is displayed, the input signal of the pixel electrode can be ensured.
- the voltage is equal to the voltage difference of the voltage of the common electrode, ensuring that the image displayed on the display screen is uniform.
- the Full In-Cell display of the present embodiment acquires a first image signal of an image displayed on the screen thereof, and compares the first image signal with a second image signal corresponding to the first image signal output by the signal source. And determining the compensation data of the first image signal and saving the compensation data, so that when the display image signal is displayed, the display can display the image signal according to the compensation data, so that the input signal voltage of each pixel electrode is common to The voltage difference of the electrode voltages are equal, thereby effectively improving the uniformity of the display image and improving the viewing experience of the user without reducing the brightness of the image display.
- FIG. 6 is a schematic structural diagram of an embodiment of a Full In-Cell display of the present invention.
- the display of the present embodiment includes an electrically connected driving circuit 601, a compensation circuit 602, and a display panel 603.
- the display panel 603 includes a color filter substrate, an array substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate, and the touch substrate is disposed on a side of the array substrate facing the liquid crystal layer.
- the touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate.
- the drive circuit 601 is for inputting a first image signal.
- the display When the display displays an image, it needs to be connected to the signal source first, and the driving circuit 601 inputs the first image signal to be displayed.
- the display of the embodiment implements control of the touch signal and the display signal by means of time division multiplexing, that is, the time of each frame is divided into two time periods for respectively transmitting and processing the display signal and the touch signal.
- time division multiplexing that is, the time of each frame is divided into two time periods for respectively transmitting and processing the display signal and the touch signal.
- the compensation circuit 602 is configured to compensate the first image signal according to the image compensation data to obtain a third image signal.
- the lengths of the wires connecting the pixel electrode and the common electrode of the array substrate 202 are not equal, that is, the wires of the farther and closer wires.
- the resistance values are not equal.
- the voltages of the wires with different resistance values are different.
- the voltage values applied to the common electrode terminals of each array substrate are not the same, that is, the Vcom drift occurs.
- the voltage values at the common electrode terminals of the array substrate 202 are not the same.
- the display In order to make the input first image signal uniformly displayed on the display, it is ensured that the voltage difference between the voltage of the input signal loaded at each end of each pixel electrode and the voltage of the common electrode of the array substrate 202 is a fixed value, and the display inputs the first image. After the signal, the first image signal is compensated to obtain a third image signal.
- the display of the present embodiment includes a storage circuit 704 for storing compensation data of the display.
- the compensation data is an array substrate of the display determined according to a difference between gray scale information of the first image signal and gray scale information of an original second image signal corresponding to the first image signal.
- the offset of the voltage of the common electrode is an array substrate of the display determined according to a difference between gray scale information of the first image signal and gray scale information of an original second image signal corresponding to the first image signal.
- the compensation data includes compensation data of each region of the display image corresponding to the first image signal, and the compensation module 602 separately compensates each of the regions that are not uniformly displayed, such as to obtain a uniform third image signal after being compensated.
- the compensation data of the relative gray level of the first position at this time is Is 5.
- the actual gray level of the first image signal at the second position is 128, and the gray level here should be 131 to be consistent with the display brightness of the image at other positions, and the compensation data for the relative gray level of the second position is 3, Therefore, both the first position and the second position image need to be increased in gray scale.
- the actual gray level of the first image signal at the third position is 250, and the gray level here should be 246 to be consistent with the display brightness of the image at other positions. Therefore, the compensation data of the relative gray level of the third position is -4, that is, the third position needs to lower the gray scale.
- the grayscale of the image is determined by the voltage difference applied to the pixel electrode.
- the embodiment adopts a method of compensating the voltage of the input signal terminal of the pixel electrode to ensure that the voltage differences of all the pixel electrodes are equal.
- the compensation circuit 602 compensates the voltage of the input information of the pixel electrode corresponding to the common electrode according to the offset of the common electrode voltage, and the voltage of the input signal of the pixel electrode is offset by the voltage value of the common electrode terminal. How much is compensated so that the voltage of the input signal of the pixel electrode is equal to the voltage difference of the common electrode voltage.
- the display panel 603 is for displaying the third image signal.
- the display panel 603 After compensating the input first image signal, the display panel 603 displays the compensated third image signal corresponding to the first image signal.
- the compensation circuit compensates the first image signal according to the compensation data to obtain a third image signal, wherein the compensation is performed.
- the data is determined according to the difference between the gray scale information of the first image signal and the gray scale information of the original second image signal corresponding to the first image signal, and the voltage of the common electrode of the array substrate of the display is determined.
- the offset is such that the input signal voltage of each pixel electrode of the display is equal to the voltage difference of the common electrode voltage, thereby effectively improving the uniformity of the display image and improving the user without changing the structure of the existing Full In-Cell display. Viewing experience.
- FIG. 8 is a schematic structural view of an embodiment of a system for displaying image uniformity according to the present invention.
- the system of the present embodiment includes a detection device 801 and a display 802.
- the display 802 is a F ll In-Cell display, and may be other displays in other embodiments, which is not limited herein.
- the display 802 includes a driving circuit 8021 and a storage circuit 8022 that are electrically connected to each other, and further includes a display panel 8023 for displaying an image.
- the display panel 8023 includes a color filter substrate, an array substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate, and a touch electrode is disposed on a side of the array substrate facing the liquid crystal layer, The touch electrodes are combined with the common electrodes of the array substrate, and are arranged in an array on the array substrate.
- the detecting device 801 includes a high frequency camera, such as a CCD camera, but is not limited to the above camera. Any device that can obtain a first image signal by photographing can be used as the detecting device of the present embodiment. limited.
- the detecting device 801 is configured to photograph an image displayed on the screen of the display 802 to obtain a first image signal.
- the user enjoys the image displayed on the screen of the display with the touch display function, if the brightness of the display screen is uniform, the user can enjoy the image with better quality, but when the brightness of the display screen is uneven, the normality of the user is affected. Watch.
- the image signal displayed on the displayed screen is photographed by the detecting device 801 to obtain a first image signal.
- the driving circuit 8021 is configured to acquire a first image signal of a graphic displayed on a screen thereof from the detecting device.
- the driving circuit 8021 acquires the first image signal by using a detecting device.
- Whether the brightness of the screen display is uniform or not is determined by whether the gray scale of the image display is consistent, and the gray scale of the display is determined by the input voltage of the pixel electrode and the voltage difference on the common electrode, when the input voltage of each pixel electrode
- the pressure difference on the common electrode is equal, the angle of the liquid crystal molecules is controlled to be the same, and the light transmittance is the same.
- the brightness displayed on the screen is the same, that is, the brightness of the display screen is uniform.
- the factor that affects whether the brightness of the display screen is uniform is the gray level of the image. Therefore, after the first image signal is acquired from the detecting device, the driving circuit 8021 acquires the gray level information of the first image signal, wherein Information must be obtained for each part of the same picture.
- the driving circuit 8021 is further configured to compare the first image signal with an original second image signal corresponding to the first image signal, and determine compensation data of the first image signal.
- the driving circuit 8102 After receiving the first image signal, the driving circuit 8102 compares the first image signal with the original second image signal output by the data source, and determines the first image by using the first image signal as a reference object.
- the compensation data of the signal that is, the compensation data of the input signal voltage of the corresponding pixel electrode.
- the driving circuit 8021 calculates a difference between the grayscale information of the first image signal and the grayscale information of the corresponding second image signal, including the grayscale information of each region of the first image signal and the second image signal.
- the corresponding regions are compared to determine whether the grayscale information of each region of the first image signal is consistent with the grayscale information of the second image signal.
- the gray scale information is deviated due to the unequal difference between the input voltage of the pixel electrode and the common electrode, resulting in different angles of deflection of the liquid crystal molecules, resulting in the input voltage of the pixel electrode and the common electrode.
- the direct cause of the unequal pressure difference is that due to the current offset of the common electrode voltage, the larger the offset, the larger the variation of the voltage difference between the input voltage of the pixel electrode and the common electrode, and the more serious the problem of display unevenness ,therefore,
- the gray scale information of the first image signal is inconsistent with the gray scale information of the second image signal, further acquiring an offset of the common electrode voltage corresponding to the first image signal, and determining compensation of the first image signal according to the offset amount Data, how much the voltage value at the common electrode terminal is offset, how much the voltage of the input signal of the pixel electrode is compensated so that the voltage difference between the voltage of the input signal of the pixel electrode and the voltage of the common electrode is equal.
- the storage circuit 8022 is configured to store the compensation data.
- the storage circuit 8022 stores the compensation data to compensate the first image signal to be displayed, so that the input of the pixel electrode can be ensured when any type of the first image signal is displayed.
- the voltage difference between the voltage of the signal and the voltage of the common electrode is equal, ensuring that the image displayed on the display screen is uniform.
- the detecting device of the embodiment obtains a first image signal by taking an image of an image displayed on the display screen, and the driving circuit of the display obtains the first image signal of the image displayed on the screen, and the first image signal The image signal and the second image letter output by the signal source corresponding to the first image signal The number is compared, the compensation data of the first image signal is determined and the compensation data is saved, and the storage circuit stores the compensation data.
- the display image signal is displayed, the display can display the image signal according to the compensation data, so that the voltage difference between the input signal voltage of each pixel electrode and the common electrode voltage is equal, and further, without reducing the image display brightness, Effectively improve the uniformity of the displayed image and improve the user's viewing experience.
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Abstract
一种图像均匀性显示的方法、装置及系统,该方法用于Full In-Cell显示器,包括显示器输入第一图像信号(101);按照图像补偿数据对第一图像信号进行补偿得到第三图像信号(102);显示第三图像信号(103)。显示器包括彩膜基板(201,301)、以及置于二者之间的液晶层(203,303),阵列基板(202,302)面向所述液晶层(203,303)的一侧设置触控电极(304),触控电极(304)与阵列基板(202,302)的公共电极合成在一起,呈阵列式的排列在阵列基板(202,302)上;补偿数据为根据第一图像信号的灰阶信息与第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的显示器的阵列基板(202,302)的公共电极的电压的偏移量;该方法能够在不改变Full In-Cell显示器结构的前提下,有效提高显示图像的均匀性。
Description
本发明涉及显示领域,特别是涉及一种图像均匀性显示的方法及显示器。
触摸屏又称触控面板,是个可接收触头如手指触摸等输入讯号的感应式液晶显示装置,当接触了屏幕上的图形按钮时,屏幕上的触觉反馈系统可根据预先设定的驱动扫描方式,确定触摸的动作的位置,进一步确定点击的图形的按钮,确定指令类型。相较于现有技术机械式的按钮面板,触摸屏更加方便,因此得到了广泛的应用。
投射式电容触摸屏是常用的触摸屏中的一种,利用手指近接电容触控面板时所产生电容变化的触控技术,包括自容式触摸技术和互容式触摸技术。也包括外挂式触摸技术和内嵌式触摸技术,而内嵌式触摸技术又包括In-cell触控技术以及On-cell触控技术。而伴随着触摸屏屏技术的发展,In-cell技术逐渐成为中小尺寸触摸屏的主流技术,通过将触控电极整合到cell内部,通过同一个控制器IC利用时分复用的原理分别对图像信号和触摸屏信号进行处理,从而使触控显示面板的厚度和重量都得到一定程度的减轻。
现有的In-cell触控技术包括Hybrid In-Cell触控技术以及Full In-Cell触控技术,由于Full In-Cell触控技术结构较为简单,成为触控显示技术的发展趋势。但是Full In-Cell触控技术是将触控电极整合到阵列基板的公共电极中,必然的,结构上相对于单纯的显示面板较复杂,连接在同一个电极上的导线相对增多,而显示屏的空间确有限,信号线的分布空间也是有限的,因此,在有限的空间里,连接像素电极与阵列基板公共电极的导线的长度并不相等,最终加载在液晶像素上的电压并不相等,因此,显示的画面并不均匀。
为了克服上述问题,出现了通过将驱动电极与相邻的公共电极通过开关晶体管连接,来保证Full In-Cell显示器中的液晶像素电压相等,但是上述方法不仅需要改进阵列基板本身的制程,而且需要额外添加晶体管,不仅使Full In-Cell显示器
的结构更加复杂,而且也增加了晶体管的成本。
【发明内容】
本发明主要解决的技术问题是提供一种图像均匀性显示的方法及显示器,能够在不不改变Full In-Cell显示器结构的前提下,有效提高显示图像的均匀性。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种图像均匀性显示的方法,所述方法用于Full In-Cell显示器,包括:
显示器输入第一图像信号;
其中,所述显示器包括彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;
按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号;
其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量;
显示所述第三图像信号。
其中,所述按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号的步骤具体包括:
根据所述阵列基板的公共电极的电压的偏移量对与所述公共电极对应的像素电极的输入信号的电压进行补偿,以使所述像素电极的输入信号的电压与所述公共电极的电压的压差相等,得到所述第三图像信号。
为解决上述技术问题,本发明采用的另一个技术方案是:提供一种图像均匀性显示的方法,所述方法用于Full In-Cell显示器,包括:
显示器获取其屏幕所显示的图像的第一图像信号;
其中,所述显示器包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;
将所述第一图像信号与所述第一图像信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据;
存储所述补偿数据。
其中,所述将所述第一图像信号与所述第一信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据的步骤具体包括:
所述显示器计算所述第一图像信号的灰阶信息与信号源输出的与所述第一图像信号对应的第二图像信号的灰阶信息的差值,并确定与所述差值对应的公共电极电压的偏移量,并根据所述偏移量确定所述第一图像信号的补偿数据。
其中,所述获取屏幕所显示的图像的第一图像信号的步骤具体包括:
所述显示器从侦测设备获取其屏幕所显示的图像的第一图像信号;其中,所述侦测器通过对所述屏幕显示的图像进行拍照得到所述第一图像信号。
其中,所述侦测设备包括电荷耦合CCD照相设备。
为解决上述技术问题,本发明采用的另一个技术方案是:提供一种图像均匀性显示的Full In-Cell显示器,包括:电连接的驱动电路、补偿电路以及显示面板,
所属显示面板包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;
所述驱动电路用于输入第一图像信号;
所述补偿电路用于按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号;
其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量;
所述显示面板用于显示所述第三图像信号。
其中,所述补偿模块具体用于根据所述阵列基板的公共电极的电压的偏移量对与所述公共电极对应的像素电极的输入信号的电压进行补偿,以使所述像素电极的输入信号的电压与所述公共电极的电压的压差相等,得到所述第三图像信
号。
本发明的有益效果是:区别于现有技术的情况,本发明的显示器在输入第一图像信号后,对所述第一图像信号按照补偿数据进行补偿,得到第三图像信号,其中,补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量,使显示器每个像素电极的输入信号电压与公共电极电压的压差均相等,进而在不改变现有Full In-Cell显示器结构、增加成本的前提下,有效提高显示图像的均匀性,提高用户的观看体验。
图1是本发明图像均匀性显示的方法一实施方式的流程示意图;
图2是图1中显示器一实施方式的结构示意图;
图3是本发明第一图像信号显示阶段补偿前后电压对比效果图;
图4是本发明第一图像信号显示阶段补偿前后亮度对比效果图;
图5是本发明图像均匀性显示的方法另一实施方式的流程示意图;
图6是本发明Full In-Cell显示器一实施方式的结构示意图;
图7是本发明Full In-Cell显示器另一实施方式的结构示意图;
图8是本发明图像均匀性显示的系统一实施方式的结构示意图。
参阅图1,图1是本发明图像均匀性显示的方法一实施方式的流程示意图。其中,本实施方式的图像均匀性显示的方法应用于Full In-Cell显示器,在其他实施方式中,也可以应用于其他类型的显示器,在此不做限定。本实施方式的图像显示方法包括:
101:显示器输入第一图像信号。
显示器显示图像时,都需要先与信号源接通,输入需要显示的第一图像信号。
具体地,如图2所示,图2为图1中的显示器的一实施方式的结构示意图。本实施方式的显示器为Full In-Cell显示器,具体包括相对设置的彩膜基板CF 201、阵列基板Array 202和设置在彩膜基板201和阵列基板202之间的液晶层LC 203,其中,触控电极304与阵列基板302的公共电极Array Vcom合成在一起,位于阵列
基板302的内侧,即面向所述液晶层303的一侧,呈矩阵式排列在阵列基板302上。
显示器通过时分复用的方式来分别实现对触控信号和显示信号的控制,即将每一帧的时间分为分别用于发送和处理显示信号和触控信号的两个时间段,当显示器处于显示阶段时,所有的阵列基板202的公共电极短接在一起,控制液晶分子203发生偏转,使像素电极方式发生压差,如果加载在每一个像素电极上的点压差均相等,那么显示器屏幕上显示均匀的图像。
202:按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号。
其中所述补偿数据存储在所述显示器中。
由于,图像信号在显示时,由于显示器结构存在不可避免的误差,在有限的空间里,连接像素电极与阵列基板202公共电极的导线的长度并不相等,即距离较远和较近的导线的电阻值并不相等,不同电阻值的导线所占的电压也不相同,加载在每个阵列基板公共电极端的电压值并不相同,即出现Vcom漂移。导致阵列基板202的公共电极端的电压值并不相同。为了使输入的第一图像信号在显示器均匀显示,就要保证加载在每个像素电极两端的输入信号的电压和阵列基板202公共电极的电压的压差为一个定值,显示器在输入第一图像信号后,对第一图像信号进行补偿得到第三图像信号。
其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量。
具体地,上述补偿数据中包括第一图像信号对应的显示画面各个区域的补偿数据,显示器对每个显示不均匀的区域均分别进行补偿,如以得到补偿后显示均匀的第三图像信号。举例来说,当第一图形信号在第一位置的实际灰阶为32,而此处的灰阶应该为37才能与其他位置的亮度保持一致,此时第一位置的相对灰阶的补偿数据为5。第一图像信号在第二位置的实际灰阶为128,而此处的灰阶应该为131才能与其他位置的图像的显示亮度保持一致,那么第二位置的相对灰阶的补偿数据为3,因此,第一位置和第二位置的图像均需要提高灰阶。第一图像信号在第三位置的实际灰阶为250,而此处的灰阶应该为246时才能与其他
位置的图像的显示亮度保持一致,因此,第三位置的相对灰阶的补偿数据为-4,即第三位置需要将灰阶降低。
正如上面所分析的,图像的灰阶是有加载在像素电极的电压差所决定的。公共电极端的电压发生偏移时,本实施方式采用的方式是对像素电极的输入信号端的电压进行补偿,来保证所有像素电极的压差都相等。具体地,显示器根据公共电极电压的偏移量对与上述公共电极对应的像素电极的输入信息的电压进行补偿,公共电极端的电压值偏移多少,就对像素电极的输入信号的电压补偿多少,以使像素电极的输入信号的电压与公共电极电压的压差相等。
如图3所示,实线Vdata表示补偿前的像素电极的输入信号的电压,为一个恒定值,实线Vcom表示补偿前的公共电极电压,由图3中可以看出,A区域和D区域的公共电极电压均存在一个绝对值相等,正负相反的偏移量ΔV,即A区域的像素电极的输入信号的电压均需要补偿-ΔV,而D区域的像素电极的输入信号的电压需要补偿ΔV,如虚线Vdata所示,虚线Vdata表示补偿后的像素电极的输入信息的电压,实线Vcom表示补偿后的公共电极电压,补偿后A、B、C、D四个区域的像素电极的输入信号的电压与公共电极电压的压差V均相等,最终补偿后,使第三图像信号的显示画面的图像的灰阶都相对应,画面的的亮度均匀化。如图4所示,图4为第一图像信号显示阶段补偿前后亮度对比效果图。
103:显示所述第三图像信号。
对输入的第一图像信号进行补偿后,显示补偿后的与第一图像信号对应的第三图像信号。
区别于现有技术,本实施方式的Full In-Cell显示器在输入第一图像信号后,对所述第一图像信号按照补偿数据进行补偿,得到第三图像信号,其中,补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量,使显示器每个像素电极的输入信号电压与公共电极电压的压差均相等,进而在不改变现有Full In-Cell显示器结构的条件下,有效提高显示图像的均匀性,提高用户的观看体验。
参阅图5,图5是本发明图像均匀性显示的方法另一实施方式的结构示意图。本
实施方式的图像均匀性显示方法用于Full In-Cell显示器,在其他实施方式中,也可以适用在其他显示器,在此不做限定。
如图5所示,本实施方式的图像均匀性显示方法包括如下步骤:
501:显示器获取其屏幕所显示的图像的第一图像信号。
其中,所述显示器为Full In-Cell显示器,包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板和所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上。
用户在欣赏具有触控显示功能的显示器的屏幕显示的图像时,如果显示画面的亮度均匀,则用户能欣赏到质量较好的图像,但是当显示画面亮度不均匀时,则会影响用户的正常观看。为了确定显示器显示的画面是否为均匀的,需要对显示器显示的图像进行获取作为判断和参考对性。本实施方式中通过侦测设备对显示的屏幕显示的图像信号进行拍照,得到第一图像信号。
对应的,显示器通过侦测设备获取所述第一图像信号。
而屏幕显示的亮度是否均匀是由图像的显示的灰阶是否一致决定的,而显示的灰阶是由像素电极的输入电压与公共电极上的压差所决定,当每个像素电极的输入电压与公共电极上的压差均相等时,控制液晶分子偏转的角度大小也相同,光的透光率也相同,最终屏幕上显示的亮度是一样的,即显示画面的亮度是均匀的。
进一步地,影响显示画面亮度是否均与的因素为图像的显示灰阶,因此,显示器在从侦测设备在获取到第一图像信号后,获取第一图像信号的灰阶信息,其中,同一个画面的各个部分都要进行信息的获取。
其中,上述侦测设备包括高频相机,如CCD照相机,当不局限于上述相机,任何可以获取第一图像信号的设备均可作为本实施方式的侦测设备,在此不做限定。
502:将所述第一图像信号与所述第一图像信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据;
显示器接收到第一图像信号后,以所述第一图像信号为参考对象,将所述第一
图像信号与数据源输出的原始的第二图像信号进行比较,确定所述第一图像信号的补偿数据,即对应的像素电极的输入信号电压的补偿数据。
具体地,显示器通过驱动控制器计算第一图像信号的灰阶信息与对应的第二图像信号的灰阶信息的差值,包括对第一图像信号的各个区域的灰阶信息均与第二图像信号中的对应区域进行比对,确定第一图像信号的每一个区域的灰阶信息是否第二图像信号的灰阶信息相一致。
正如上述所分析的,灰阶信息出现偏差由于像素电极的输入电压与公共电极上的压差不相等导致液晶分子偏转的角度大小不相同而造成,而造成像素电极的输入电压与公共电极上的压差不相等的直接原因是由于公共电极电压出现电流偏移,偏移量越大,像素电极的输入电压与公共电极上的压差的变化量就越大,显示不均匀的问题就越严重,因此,
如果第一图像信号的灰阶信息与第二图像信号的灰阶信息不一致,则进一步获取第一图像信号对应的公共电极电压的偏移量,根据所述偏移量确定第一图像信号的补偿数据。
503:存储所述补偿数据。
由于显示器一旦制作完成,其具体每个细小的电极及其他元器件一般不会再发生变化,为了时显示器在使用过程中,克服其结构带来的不可避免的由于阵列基板公共电极电压的偏移量而造成的图像显示不均的情况,显示器将上述补偿数据存储下来,对需要显示的第一图像信号进行补偿,使显示任何类型的第一图像信号时,均能够保证像素电极的输入信号的电压与所述公共电极的电压的压差相等,保证显示器屏幕显示的图像均匀。
区别于现有技术,本实施方式Full In-Cell显示器获取其屏幕所显示的图像的第一图像信号,将第一图像信号与信号源输出的与第一图像信号对应的第二图像信号进行比对,确定所述第一图像信号的补偿数据并保存所述补偿数据,使显示器在显示图像信号时,能够根据所述补偿数据对图像信号进行显示,使每个像素电极的输入信号电压与公共电极电压的压差均相等,进而在不降低图像显示亮度的情况下,有效提高显示图像的均匀性,提高用户的观看体验。
参阅图6,图6是本发明Full In-Cell显示器一实施方式的结构示意图。
本实施方式的显示器包括电连接的驱动电路601、补偿电路602以及显示面板603,
所述显示面板603包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上。
驱动电路601用于输入第一图像信号。
显示器显示图像时,都需要先与信号源接通,驱动电路601输入需要显示的第一图像信号。
本实施方式的显示器通过时分复用的方式来分别实现对触控信号和显示信号的控制,即将每一帧的时间分为分别用于发送和处理显示信号和触控信号的两个时间段,当显示器处于显示阶段时,所有的阵列基板的公共电极短接在一起,控制液晶分子发生偏转,使像素电极方式发生压差,如果加载在每一个像素电极上的点压差均相等,那么显示器屏幕上显示均匀的图像。
补偿电路602用于按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号。
由于,图像信号在显示时,由于显示器结构存在不可避免的误差,在有限的空间里,连接像素电极与阵列基板202公共电极的导线的长度并不相等,即距离较远和较近的导线的电阻值并不相等,不同电阻值的导线所占的电压也不相同,加载在每个阵列基板公共电极端的电压值并不相同,即出现Vcom漂移。导致阵列基板202的公共电极端的电压值并不相同。为了使输入的第一图像信号在显示器均匀显示,就要保证加载在每个像素电极两端的输入信号的电压和阵列基板202公共电极的电压的压差为一个定值,显示器在输入第一图像信号后,对第一图像信号进行补偿得到第三图像信号。
如图7所示,本实施方式的显示器包括存储电路704,所述存储电路704用于存储显示器的补偿数据。
其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板
的公共电极的电压的偏移量。
具体地,上述补偿数据中包括第一图像信号对应的显示画面各个区域的补偿数据,补偿模块602对每个显示不均匀的区域均分别进行补偿,如以得到补偿后显示均匀的第三图像信号。举例来说,当第一图形信号在第一位置的实际灰阶为32,而此处的灰阶应该为37才能与其他位置的亮度保持一致,此时第一位置的相对灰阶的补偿数据为5。第一图像信号在第二位置的实际灰阶为128,而此处的灰阶应该为131才能与其他位置的图像的显示亮度保持一致,那么第二位置的相对灰阶的补偿数据为3,因此,第一位置和第二位置的图像均需要提高灰阶。第一图像信号在第三位置的实际灰阶为250,而此处的灰阶应该为246时才能与其他位置的图像的显示亮度保持一致,因此,第三位置的相对灰阶的补偿数据为-4,即第三位置需要将灰阶降低。
正如上面所分析的,图像的灰阶是有加载在像素电极的电压差所决定的。公共电极端的电压发生偏移时,本实施方式采用的方式是对像素电极的输入信号端的电压进行补偿,来保证所有像素电极的压差都相等。具体地,补偿电路602根据公共电极电压的偏移量对与上述公共电极对应的像素电极的输入信息的电压进行补偿,公共电极端的电压值偏移多少,就对像素电极的输入信号的电压补偿多少,以使像素电极的输入信号的电压与公共电极电压的压差相等。
显示面板603用于显示所述第三图像信号。
对输入的第一图像信号进行补偿后,显示面板603显示补偿后的与第一图像信号对应的第三图像信号。
区别于现有技术,本实施方式的Full In-Cell显示器的驱动电路在输入第一图像信号后,补偿电路对所述第一图像信号按照补偿数据进行补偿,得到第三图像信号,其中,补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量,使显示器每个像素电极的输入信号电压与公共电极电压的压差均相等,进而在不改变现有Full In-Cell显示器结构的条件下,有效提高显示图像的均匀性,提高用户的观看体验。
如图8所示,图8为本发明图像均匀性显示的系统的一实施方式的结构示意图。
本实施方式的系统包括侦测设备801以及显示器802,其中,所述显示器802为F ull In-Cell显示器,在其他实施方式中也可以为其他显示器,在此不做限定。
所述显示器802包括相互电连接的驱动电路8021以及存储电路8022,还包括显示面板8023,用于对图像进行显示。所述显示面板8023包括彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上。
其中,所述侦测设备801包括高频相机,如CCD相机,但不局限于上述相机,任何可以通过拍照获取第一图像信号的设备均可作为本实施方式的侦测设备,在此不做限定。
侦测设备801用于对所述显示器802的屏幕显示的图像进行拍照得到第一图像信号。
用户在欣赏具有触控显示功能的显示器的屏幕显示的图像时,如果显示画面的亮度均匀,则用户能欣赏到质量较好的图像,但是当显示画面亮度不均匀时,则会影响用户的正常观看。为了确定显示器显示的画面是否为均匀的,需要对显示器显示的图像进行获取作为判断和参考对性。本实施方式中通过侦测设备801对显示的屏幕显示的图像信号进行拍照,得到第一图像信号。
所述驱动电路8021用于从所述侦测设备获取其屏幕所显示的图形的第一图像信号。
对应的,驱动电路8021通过侦测设备获取所述第一图像信号。
而屏幕显示的亮度是否均匀是由图像的显示的灰阶是否一致决定的,而显示的灰阶是由像素电极的输入电压与公共电极上的压差所决定,当每个像素电极的输入电压与公共电极上的压差均相等时,控制液晶分子偏转的角度大小也相同,光的透光率也相同,最终屏幕上显示的亮度是一样的,即显示画面的亮度是均匀的。
进一步地,影响显示画面亮度是否均与的因素为图像的显示灰阶,因此,显示器在从侦测设备在获取到第一图像信号后,驱动电路8021获取第一图像信号的灰阶信息,其中,同一个画面的各个部分都要进行信息的获取。
所述驱动电路8021还用于将所述第一图像信号与和所述第一图像信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据。
驱动电路接8021收到第一图像信号后,以所述第一图像信号为参考对象,将所述第一图像信号与数据源输出的原始的第二图像信号进行比较,确定所述第一图像信号的补偿数据,即对应的像素电极的输入信号电压的补偿数据。
具体地,驱动电路8021计算第一图像信号的灰阶信息与对应的第二图像信号的灰阶信息的差值,包括对第一图像信号的各个区域的灰阶信息均与第二图像信号中的对应区域进行比对,确定第一图像信号的每一个区域的灰阶信息是否第二图像信号的灰阶信息相一致。
正如上述所分析的,灰阶信息出现偏差由于像素电极的输入电压与公共电极上的压差不相等导致液晶分子偏转的角度大小不相同而造成,而造成像素电极的输入电压与公共电极上的压差不相等的直接原因是由于公共电极电压出现电流偏移,偏移量越大,像素电极的输入电压与公共电极上的压差的变化量就越大,显示不均匀的问题就越严重,因此,
如果第一图像信号的灰阶信息与第二图像信号的灰阶信息不一致,则进一步获取第一图像信号对应的公共电极电压的偏移量,根据所述偏移量确定第一图像信号的补偿数据,公共电极端的电压值偏移多少,就对像素电极的输入信号的电压补偿多少,以使像素电极的输入信号的电压与公共电极电压的压差相等。
所述存储电路8022用于存储所述补偿数据。
由于显示器一旦制作完成,其具体每个细小的电极及其他元器件一般不会再发生变化,为了时显示器在使用过程中,克服其结构带来的不可避免的由于阵列基板公共电极电压的偏移量而造成的图像显示不均的情况,存储电路8022将上述补偿数据存储下来,对需要显示的第一图像信号进行补偿,使显示任何类型的第一图像信号时,均能够保证像素电极的输入信号的电压与所述公共电极的电压的压差相等,保证显示器屏幕显示的图像均匀。
区别于现有技术,本实施方式的侦测设备通过对显示器屏幕显示的图像进行拍照得到第一图像信号,显示器的驱动电路从获取其屏幕所显示的图像的第一图像信号,并将第一图像信号与信号源输出的与第一图像信号对应的第二图像信
号进行比对,确定所述第一图像信号的补偿数据并保存所述补偿数据,存储电路存储上述补偿数据。使显示器在显示图像信号时,能够根据所述补偿数据对图像信号进行显示,使每个像素电极的输入信号电压与公共电极电压的压差均相等,进而在不降低图像显示亮度的情况下,有效提高显示图像的均匀性,提高用户的观看体验。
以上所述仅为本发明的实施方式,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (8)
- 一种图像均匀性显示的方法,所述方法用于Full In-Cell显示器,其中,所述方法包括:显示器输入第一图像信号;其中,所述显示器包括彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号;其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量;显示所述第三图像信号。
- 根据权利要求1所述的方法,其中,所述按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号的步骤具体包括:根据所述阵列基板的公共电极的电压的偏移量对与所述公共电极对应的像素电极的输入信号的电压进行补偿,以使所述像素电极的输入信号的电压与所述公共电极的电压的压差相等,得到所述第三图像信号。
- 一种图像均匀性显示的方法,所述方法用于Full In-Cell显示器,其中,显示器获取其屏幕所显示的图像的第一图像信号;其中,所述显示器包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;将所述第一图像信号与所述第一图像信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据;存储所述补偿数据。
- 根据权利要求3所述的方法,其中,所述将所述第一图像信号与所述第一信号对应的原始的第二图像信号进行比对,确定所述第一图像信号的补偿数据的步骤具体包括:所述显示器计算所述第一图像信号的灰阶信息与信号源输出的与所述第一图像信号对应的第二图像信号的灰阶信息的差值,并确定与所述差值对应的公共电极电压的偏移量,并根据所述偏移量确定所述第一图像信号的补偿数据。
- 根据权利要求3所述的方法,其中,所述获取屏幕所显示的图像的第一图像信号的步骤具体包括:所述显示器从侦测设备获取其屏幕所显示的图像的第一图像信号;其中,所述侦测器通过对所述屏幕显示的图像进行拍照得到所述第一图像信号。
- 根据权利要求5所述的方法,其中,所述侦测设备包括电荷耦合CCD照相设备。
- 一种图像均匀性显示的Full In-Cell显示器,其中,包括电连接的驱动电路、补偿电路以及显示面板,所属显示面板包括相对设置的彩膜基板、阵列基板以及设置在所述彩膜基板以及所述阵列基板之间的液晶层,所述阵列基板面向所述液晶层的一侧设置触控电极,其中,所述触控电极与所述阵列基板的公共电极合成在一起,呈阵列式的排列在所述阵列基板上;所述驱动电路用于输入第一图像信号;所述补偿电路用于按照图像补偿数据对所述第一图像信号进行补偿得到第三图像信号;其中,所述补偿数据为根据所述第一图像信号的灰阶信息与所述 第一图像信号对应的原始的第二图像信号的灰阶信息的差值,确定的所述显示器的阵列基板的公共电极的电压的偏移量;所述显示面板用于显示所述第三图像信号。
- 根据权利要求7所述的Full In-Cell显示器,其中,所述补偿模块具体用于根据所述阵列基板的公共电极的电压的偏移量对与所述公共电极对应的像素电极的输入信号的电压进行补偿,以使所述像素电极的输入信号的电压与所述公共电极的电压的压差相等,得到所述第三图像信号。
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| KR102468762B1 (ko) * | 2015-12-14 | 2022-11-21 | 엘지디스플레이 주식회사 | 터치스크린 내장형 표시장치 및 구동방법 |
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| CN106023926B (zh) | 2016-07-15 | 2019-06-11 | 武汉华星光电技术有限公司 | 触控显示装置以及改善触控显示装置的方法 |
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| CN107464541B (zh) * | 2017-09-27 | 2019-10-15 | 京东方科技集团股份有限公司 | 显示驱动方法、显示驱动装置和显示模组 |
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| KR102486277B1 (ko) * | 2017-11-16 | 2023-01-10 | 삼성전자주식회사 | 디스플레이 장치 및 그 제어 방법 |
| KR102895702B1 (ko) * | 2020-12-18 | 2025-12-05 | 주식회사 엘엑스세미콘 | 터치 디스플레이 장치 및 그 구동 방법 |
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