WO2018192248A1 - 液晶显示装置及其驱动方法 - Google Patents

液晶显示装置及其驱动方法 Download PDF

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Publication number
WO2018192248A1
WO2018192248A1 PCT/CN2017/116505 CN2017116505W WO2018192248A1 WO 2018192248 A1 WO2018192248 A1 WO 2018192248A1 CN 2017116505 W CN2017116505 W CN 2017116505W WO 2018192248 A1 WO2018192248 A1 WO 2018192248A1
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WIPO (PCT)
Prior art keywords
pixel
data
sub
data line
liquid crystal
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PCT/CN2017/116505
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English (en)
French (fr)
Inventor
杜瑞芳
曹子君
刘媛媛
马小叶
马睿
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/071,657 priority Critical patent/US11249332B2/en
Publication of WO2018192248A1 publication Critical patent/WO2018192248A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/30—Gray scale

Definitions

  • Embodiments of the present disclosure relate to a liquid crystal display device and a method of driving the same.
  • Liquid crystal display (LCD) technology is a relatively mature display technology.
  • the liquid crystal display is formed by liquid crystal display technology, and has the advantages of high image quality, power saving, thin body and wide application range, and has become a mainstream in display devices.
  • narrow-framed liquid crystal display panels have become the development trend of liquid crystal displays.
  • the liquid crystal display panel is easily deformed, thereby causing unevenness of the thickness of the edge of the liquid crystal display panel and the middle, and thus the peripheral yellowing of the liquid crystal display panel occurs. Such undesirable phenomena affect the display effect of the liquid crystal display panel and reduce the display quality.
  • At least one embodiment of the present disclosure provides a liquid crystal display device including a display panel and a controller.
  • the display panel has a display area, and a plurality of pixels arranged in a matrix are arranged in the display area, each pixel includes a red sub-pixel, a blue sub-pixel and a green sub-pixel, and the display area includes a middle area and a peripheral area outside the middle area At least one first pixel is disposed in the peripheral area.
  • the controller may relatively increase the illumination intensity of the blue sub-pixels in the first pixel.
  • the liquid crystal display device further includes: a plurality of data lines and a data driving circuit.
  • the controller includes a signal control circuit, and the plurality of data lines include a first data line, a second data line, and a third data line, the first data line is connected to the blue sub-pixel in the first pixel, and the second data line is connected to the first a red sub-pixel in the pixel is connected, the third data line is connected to the green sub-pixel in the first pixel;
  • the data driving circuit is configured to apply a data signal to the plurality of data lines;
  • the signal control circuit is disposed in the data driving circuit and Between data lines and used to control the transmission of multiple data lines to the first pixel The size of the data signal to adjust the illumination intensity of each sub-pixel in the first pixel.
  • the signal control circuit includes an amplifier.
  • An input of the amplifier is coupled to the data drive circuit, and an output of the amplifier is coupled to the first data line, the amplifier being configured to amplify the data signal applied to the first data line.
  • the signal control circuit includes a first transistor and a second transistor.
  • the input end and the output end of the first transistor are respectively connected to the data driving circuit and the second data line; the input end and the output end of the second transistor are respectively connected to the data driving circuit and the third data line.
  • the control terminals of the first transistor and the second transistor are configured to apply a control voltage to adjust the magnitudes of the data signals applied to the second data line and the third data line, respectively.
  • At least one second pixel is further disposed in the peripheral region or the intermediate region.
  • the plurality of data lines extend along a column direction of the pixel and further include a fourth data line, the blue sub-pixel of the second pixel is located in the same column as the blue sub-pixel of the first pixel, and the fourth data line is connected to the second pixel Blue subpixel.
  • At least one second pixel is further disposed in the peripheral region or the intermediate region.
  • the plurality of data lines extend along a column direction of the pixel and further include a fifth data line and a sixth data line, the second pixel is located in the same column as the first pixel, and the fifth data line is connected to the red sub-pixel in the second pixel, The sixth data line is connected to the green sub-pixel in the second pixel.
  • the controller is connected to a dynamic backlight.
  • the dynamic backlight includes a blue light unit corresponding to a blue sub-pixel in the first pixel.
  • the blue light unit is configured to have a relatively increased luminous intensity.
  • the controller further includes a backlight driving circuit, and the backlight driving circuit is connected to the dynamic backlight.
  • the backlight drive circuit is configured to control the blue light unit illumination such that the blue light unit has a relatively increased illumination intensity relative to other backlight units in the dynamic backlight.
  • the controller includes a data driving circuit.
  • the data driving circuit is configured to transmit a relatively increased gray scale voltage to the blue sub-pixels in the first pixel.
  • the data driving circuit includes a voltage driving circuit and a gamma voltage circuit.
  • the gamma voltage circuit is configured to generate a gray scale voltage based on the input display data; the voltage drive circuit is configured to relatively increase a gray scale voltage transmitted to the blue sub-pixel in the first pixel.
  • At least one embodiment of the present disclosure provides a driving method for the liquid crystal display device of any of the above.
  • the driving method includes increasing the light emission intensity of the blue sub-pixels in the first pixel, and/or decreasing the light emission intensity of the other sub-pixels in the first pixel.
  • the illumination intensity of the blue sub-pixels in the first pixel may be relatively increased relative to other sub-pixels in the first pixel.
  • the driving method includes increasing a data signal applied to a data line connected to a blue sub-pixel in the first pixel.
  • the driving method includes reducing a data signal applied to a data line connected to other sub-pixels in the first pixel.
  • the dynamic backlight in a case where the liquid crystal display device includes a dynamic backlight, includes a blue light unit corresponding to a blue sub-pixel in the first pixel, and the driving method The method includes controlling the blue light unit to emit light such that the blue sub-pixels in the first pixel have an increased luminous intensity relative to other sub-pixels in the first pixel.
  • the driving method includes increasing a gray scale voltage transmitted to a blue sub-pixel in the first pixel.
  • FIG. 1 is a schematic plan view of a liquid crystal display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a liquid crystal display device according to an example of an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another liquid crystal display device according to an example of an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a liquid crystal display device according to another example of an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another liquid crystal display device according to another example of an embodiment of the present disclosure.
  • FIG. 6A is a schematic structural diagram of a liquid crystal display device according to still another example of an embodiment of the present disclosure.
  • FIG. 6B is a schematic diagram of a planar structure of a backlight according to an embodiment of the present disclosure.
  • FIG. 7 is a block diagram of a data driving circuit according to an embodiment of the present disclosure.
  • the liquid crystal display device includes a display panel and a controller.
  • the display panel has a display area, and a row is arranged in the display area a plurality of pixels listed as a matrix, each pixel includes a red sub-pixel, a blue sub-pixel, and a green sub-pixel, the display area includes a middle area and a peripheral area outside the middle area, and at least one first pixel is disposed in the peripheral area,
  • the controller can relatively increase the illumination intensity of the blue sub-pixels in the first pixel.
  • the illumination intensity of the first pixel of the peripheral region of the display region may be separately controlled, and the illumination intensity of the blue sub-pixel in the first pixel may be relatively increased with respect to other sub-pixels in the first pixel. Since the blue light and the yellow light are complementary to each other and white light is superimposed, the relatively increased blue light component can cancel the yellow light generated by the yellowing peripheral region, thereby reducing or eliminating the color shift of the display image in the peripheral region, thereby improving The display effect of the peripheral area of the display panel improves the display quality of the liquid crystal display panel and improves the yield of the liquid crystal display device.
  • “relatively increasing” includes increasing the blue color in the pixel in the case where the luminous intensity of the sub-pixels of other colors in the pixel are maintained at a predetermined normal gray level.
  • the illuminating intensity of the sub-pixels, or the illuminating intensity of other color sub-pixels (for example, red sub-pixels and green sub-pixels) in the pixel in the case where the illuminating intensity of the blue sub-pixels in the pixel is maintained at a predetermined normal gray level or, alternatively, the illumination intensity of the blue sub-pixels in the pixel increases relative to a predetermined normal gray level, while the illumination intensity of the other color sub-pixels in the pixel decreases relative to a predetermined normal gray level.
  • predetermined normal gray scale refers to the gray scale that the pixels of the display device should present before the processing of the embodiment of the present disclosure is performed to avoid the peripheral yellowing problem. For example, when displaying a picture, the illumination intensity of the blue sub-pixel is greater than its predetermined illumination intensity; and/or the illumination intensity of the red sub-pixel and the green sub-pixel is less than its predetermined illumination intensity.
  • first direction is the column direction
  • second direction is the row direction
  • first direction and the second direction are perpendicular to each other.
  • Very can refer to strictly vertical or can also refer to approximately vertical.
  • FIG. 1 is a schematic plan view of a liquid crystal display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a liquid crystal display device according to an example of the present disclosure
  • FIG. 3 is a schematic structural diagram of another liquid crystal display device according to an example of an embodiment of the present disclosure.
  • the liquid crystal display device includes a display panel 1 and a controller.
  • the display panel 1 has a display area 10 in which a plurality of pixels 2 arranged in a matrix of n rows ⁇ m columns (for example, 720 rows ⁇ 1080 columns) are arranged, each pixel 2 including a blue sub-pixel 201, red
  • the sub-pixel 202 and the green sub-pixel 203, the display area 10 includes an intermediate area 102 and a peripheral area 101 disposed outside the intermediate area 102 (e.g., surrounding the intermediate area 102), and at least one first pixel 21 is disposed in the peripheral area 101.
  • the controller is configured to relatively increase the light emission intensity of the blue sub-pixel 201 in the first pixel 21, so that in the operation of the liquid crystal display device, the first pixel 21 is relative to other (color) sub-pixels in the first pixel 21
  • the luminous intensity of the blue sub-pixel 201 in the middle can be relatively increased.
  • the light-emission intensity of the first pixel of the peripheral region of the display region can be individually controlled, so that the light-emitting intensity of the blue sub-pixel in the first pixel can be controlled with respect to other sub-pixels in the first pixel Relatively increasing, since the blue light and the yellow light are complementary colors, the two become white light after being superimposed, so the relatively increased blue light component can cancel the yellow light generated by the yellowing peripheral region, thereby effectively improving the display of the peripheral region of the liquid crystal display panel. Defects such as yellowing, thereby improving the display effect and display quality of the liquid crystal display panel, and improving the yield of the liquid crystal display device.
  • the intermediate zone 102 is located in the middle of the display panel 1
  • the peripheral zone 101 is located around the display panel 1
  • the intermediate zone 102 is surrounded by the peripheral zone 101.
  • the distance d between the edge of the intermediate portion 102 and the edge of the display region closest to the edge of the intermediate portion 102 is 3 mm to 5 mm, for example, d may be selected to be 3 mm, 4 mm, or 5 mm.
  • the green sub-pixel 203, the red sub-pixel 202, and the blue sub-pixel 201 in the pixel 2 are arranged in the same row.
  • the sub-pixels in the pixel 2 may be arranged in the same column, or arranged in a triangle ( ⁇ ) or a mosaic manner.
  • the embodiment of the present disclosure does not limit the arrangement manner of each sub-pixel.
  • the liquid crystal display device further includes a plurality of data lines 3 extending in a first direction (ie, a column direction).
  • the plurality of data lines 3 include a first data line 31, a second data line 32, and a third data line 33.
  • the first data line 31 is connected to the blue sub-pixel 201 in the first pixel 21, and the second data line 32 is connected to The red sub-pixels 202 in the first pixel 21 are connected, and the third data line 33 is connected to the green sub-pixel 203 in the first pixel 21.
  • the liquid crystal display device further includes a data driving circuit 12.
  • the data driving circuit 12 is configured to apply a data signal to the plurality of data lines 3, the data signal being a voltage signal for controlling the intensity of illumination of the corresponding sub-pixel in the display to present a certain gray level. For example, the higher the voltage of the data signal, the larger the gray scale, thereby making the illumination intensity of the sub-pixel larger.
  • data drive circuit 12 can include a digital driver and an analog driver.
  • the analog driver inputs the red, green and blue (RGB) analog signal, and then outputs the RGB analog signal to the pixel via the thin film transistor; the digital driver inputs the RGB digital signal, which is in the driver
  • the internal is subjected to D/A (digital/analog) conversion and gamma (GAMMA) correction to be converted into an analog signal and output to the pixel via the thin film transistor.
  • D/A digital/analog
  • GAMMA gamma
  • the liquid crystal display device provided by the embodiment of the present disclosure further includes a gate driver 11, each of the sub-pixels may include a switching transistor 14, and the gate driver 11 passes through a plurality of gate lines 13 and switching transistors of each row of sub-pixels. 14 electrical connections are used to provide gate voltages to the respective switching transistors 14 to control the operational state of the switching transistors 14.
  • the gate driver 11 can be integrated on the display panel 1, that is, the liquid crystal display device adopts GOA technology, thereby effectively reducing production cost and power consumption, eliminating the bonding process and improving Product yield and capacity to achieve a narrow frame of the display panel.
  • the gate driver 11 can also be disposed on a printed circuit board of the liquid crystal display device. Further, the gate driver 11 may be provided on one side of the display panel, or the gate driver 11 may be provided on both sides of the display panel.
  • the switching transistor 14 can be a thin film transistor.
  • the thin film transistor may include an oxide thin film transistor, an amorphous silicon thin film transistor, or a polysilicon thin film transistor or the like.
  • each sub-pixel of the liquid crystal display device may further include a storage capacitor (not shown).
  • the storage capacitor is used to hold the voltage of the charged pixel to the next frame scan.
  • the storage capacitor may include a storage capacitor formed by a gate line (ie, C s on gate) or a storage capacitor formed by a common electrode line (ie, C s on common), etc., unlike the latter, the former does not need to add an additional public
  • the electrodes are routed, so the aperture ratio is large.
  • the liquid crystal display device in the embodiment of the present disclosure adopts a manner of forming a storage capacitor through a gate line.
  • the controller may include a signal control circuit that may be disposed between the data driving circuit 12 and the plurality of data lines 3 and used to control the size of the data signals transmitted by the plurality of data lines 3 to the first pixel 21 to The luminous intensity of each of the first pixels 21 is adjusted.
  • the signal control circuit includes at least one amplifier 41.
  • the amplifier 41 can amplify the data signal applied to the first data line 31, thereby increasing the luminous intensity of the blue sub-pixel 201 in the first pixel 21.
  • An input terminal of the amplifier 41 is connected to the data driving circuit 12, and an output terminal of the amplifier 41 is connected to the first data line 31.
  • the amplifier 41 can receive a data signal from the data driving circuit 12, amplify the data signal, and then transmit the amplified data signal to the first data line 31, and finally the amplified data signal is input through the first data line 31.
  • the amplifier 41 can receive a data signal from the data driving circuit 12, amplify the data signal, and then transmit the amplified data signal to the first data line 31, and finally the amplified data signal is input through the first data line 31.
  • the amplifier 41 can receive a data signal from the data driving circuit 12, amplify the data signal, and then transmit the amplified data signal to the first data line 31, and finally the amplified data signal is input through the first data line 31.
  • the blue sub-pixel 201 in the first pixel 21 In the blue sub-pixel 201 in the first pixel 21.
  • the amplifier 41 can be connected to at least one first data line 31 to amplify the data signal applied to the first data line 31. Since the first data line 31 is connected to all of the blue sub-pixels 201 located in the same column, the amplifier 41 can simultaneously increase the luminous intensity of the blue sub-pixels 201 in all of the first pixels 21 of the same column. In the second direction, on the left and right sides of the display panel 1, different amplifiers 41 can enhance the luminous intensity of the blue sub-pixels 201 of different columns, thereby improving the yellowing of the display screen on the left and right sides of the display panel.
  • the amplifiers 41 connected to the first data lines 31 of different columns may be different, so that the luminous intensities of the blue sub-pixels 201 of different columns are enhanced to different degrees.
  • the amplifier 41 may have a larger magnification ratio, so that the illumination intensity of the blue sub-pixel 201 of the region is greatly enhanced.
  • the amplifier 41 can be specifically set according to the value of the blue sub-pixel 201 of different regions that requires an increased luminous intensity.
  • the amplifiers 41 connected to the first data lines 31 of the different columns may also be the same, which is not limited in the embodiment of the present disclosure.
  • the area where the degree of deformation of the display panel is large may be an area where the yellowing is severe, for example, an area near the edge of the display area 10 in the peripheral area 101.
  • a specific example of the amplifier 41 may be composed of a tube, a transistor, a power transformer, or other electrical components.
  • the amplifier 41 may be a single-stage coupled amplifier circuit or a multi-stage coupled amplifier circuit.
  • Amplifier 41 can linearly or non-linearly transform the input signal to obtain different output signals.
  • the linear transformation may include, for example, a linear function transformation or the like, and the nonlinear transformation may include an exponential transformation or a quadratic function transformation or the like.
  • the amplifier 41 may be one or a combination of an electronic amplifier, an electromechanical amplifier, a hydraulic amplifier, or a pneumatic amplifier.
  • the electronic amplifier may include, for example, an operational amplifier or the like.
  • the data driving circuit 12 can be connected to the non-inverting input of the operational amplifier.
  • At least one second pixel 22 is further disposed in the peripheral area 101 or the intermediate area 102, and the plurality of data lines 3 further includes a fourth data line 34, and the fourth data line 34 also extends in the column direction. , that is, extending in the first direction.
  • the second pixel 22 is in the same column but different rows from the first pixel 21, and the fourth data line 34 is connected to the blue sub-pixel 201 in the second pixel 22; that is, the first data line 31 and the fourth data line 34 are in the same column.
  • the different blue sub-pixels 201 are connected. Therefore, unlike the liquid crystal display device shown in FIG. 2, the liquid crystal display device shown in FIG. 3 can separately control the first sub-pixel 21 and the blue sub-pixel 201 of the second pixel 22 in the same column, and individually enhance the first pixel.
  • the second pixel 22 and the first pixel 21 are operated differently.
  • the illumination intensity of the second pixel 22 is not adjusted; alternatively, the illumination intensity of the second pixel 22 is adjusted differently from the illumination intensity of the first pixel 21.
  • the light emission intensity of the first pixel 21 and the second pixel 22 is simultaneously increased by the signal control circuit, but the increase amount of the light emission intensity of the first pixel 21 is larger than the increase amount of the light emission intensity of the second pixel 22, thereby improving the overall display panel 1 The brightness, while improving the yellowing of the display panel.
  • the first pixels 21 may be located in the peripheral region 101 on the upper and lower sides of the display panel 1, so that the amplifier 41 can enhance the luminous intensity of the blue sub-pixels 201 on the upper and lower sides of the display panel 1.
  • the first data line 31 connected to each column of blue sub-pixels 201 can be connected to an amplifier 41.
  • the luminous intensities of all the blue sub-pixels 201 in the same row can be relatively increased, thereby improving display uniformity on the upper and lower sides of the display panel.
  • each of the first data lines 31 may be specifically set according to actual needs, and is not limited herein.
  • each of the first data lines 31 is connected to 10 blue sub-pixels 201 located in respective columns.
  • FIG. 4 is a schematic structural diagram of a liquid crystal display device according to another example of an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of another liquid crystal display device according to another example of the disclosure.
  • the controller may include a signal control circuit, and the signal control circuit includes a first transistor 15 and a second transistor 16.
  • the input terminal and the output terminal of the first transistor 15 are respectively connected to the data driving circuit 12 and the second data line 32; the input terminal and the output terminal of the second transistor 16 are connected to the data driving circuit 12 and the third data line 33, respectively.
  • the control terminals of the first transistor 15 and the second transistor 16 may be applied with a control voltage to adjust the magnitudes of the data signals applied to the second data line 32 and the third data line 33, respectively.
  • the input can be the source of the transistor for the input signal; the output can be the drain of the transistor for the output signal; and the control terminal is the gate of the transistor for receiving the control voltage to control the transistor.
  • Working status considering the symmetry of the source and drain of the transistor, the input can also be the drain of the transistor and the output is the source of the transistor.
  • the second data line 32 and the third data line 33 are respectively connected to one column of red sub-pixels 202 and one column of green sub-pixels 203, so that the first transistor 15 and the second transistor 16 can respectively control one Column red sub-pixel 202 and a column of green sub-pixel 203.
  • the data driving circuit 12 can apply a control voltage to the control terminals of the first transistor 15 and the second transistor 16, thereby controlling the degree of opening of the first transistor 15 and the second transistor 16, to reduce the second data line 32 and the third.
  • the data signal transmitted by the data line 33 further reduces the luminous intensity of the red sub-pixel 202 and the green sub-pixel 203 in the first pixel 21.
  • the data driving circuit 12 can apply a first control voltage to the control terminal of the first transistor 15, and a second control voltage to the control terminal of the second transistor 16, the first control voltage and the second control voltage can be the same, thereby
  • the luminous intensities of the red sub-pixel 202 and the green sub-pixel 203 in one pixel 21 can be reduced by the same amplitude.
  • the first control voltage and the second control voltage may also be different. For example, since the transmittances of the red filter and the green filter are different, the illumination intensity of the red sub-pixel 202 and the green sub-pixel 203 is not uniform, and the utilization is different.
  • the control voltage adjusts the illumination intensity of the red sub-pixel 202 and the green sub-pixel 203 in the first pixel 21 to different degrees to further improve display uniformity and improve display quality.
  • the first transistors 15 connected to the second data lines 32 of different columns may be the same or different.
  • the control voltage applied to each of the first transistors 15 by the data driving circuit 12 may be the same or different.
  • the first transistor 15 can adjust the illumination intensity of the red sub-pixels 202 of different columns to the same or different degrees to meet different practical needs.
  • the second transistor 16 has a similar structure and function as the first transistor 15 except that the second transistor 16 is used to adjust the illumination intensity of the green sub-pixel 202. Therefore, in the embodiment of the present disclosure, the related description of the first transistor 15 is also applicable to the second transistor 16 without contradiction, and the details are not described again.
  • the plurality of data lines 3 further includes a fifth data line 35 and a sixth data line 36, a fifth data line 35 and a sixth data line. 36 also extends in the column direction.
  • the fifth data line 35 and the sixth data line 36 are connected to the red sub-pixel 202 and the green sub-pixel 203 in the second pixel 22, respectively.
  • the red sub-pixel 202 in the first pixel 21 and the red sub-pixel 202 in the second pixel 22 are respectively connected to the second data line 32 and the fifth data line 35; in the first pixel 21
  • the green sub-pixel 203 and the green sub-pixel 203 of the second pixel 22 are connected to the third data line 33 and the sixth data line 36, respectively. Therefore, unlike the liquid crystal display device shown in FIG. 4, the liquid crystal display device shown in FIG. 5 can separately control the first pixel 21 and the second pixel 22 located in the same column, and separately reduce the red sub-pixel in the first pixel 21.
  • the luminous intensity of 202 and green sub-pixel 203 is the red sub-pixel in the first pixel 21 and the red sub-pixel 203.
  • the number of red sub-pixels 202 connected to each second data line 32 may be according to actual needs.
  • the number of the green sub-pixels 203 connected to each of the third data lines 33 may be specifically set according to actual needs, and is not limited herein.
  • each of the second data lines 32 is connected to 10 red sub-pixels 202 located in respective columns; each of the third data lines 33 is also connected to 10 green sub-pixels 203 located in the corresponding column.
  • the first pixels 21 may be located in the peripheral area 101 on the upper and lower sides of the display panel 1.
  • the control terminals of the first transistor 15 and the second transistor 16 can be applied with control voltages to respectively adjust the data signals on the second data line 32 and the third data line 33, thereby reducing the red sub-pixels 202 on the upper and lower sides of the display panel 1.
  • the luminous intensity of the green sub-pixel 203 is also possible.
  • the second data line 32 connected to each column of red sub-pixels 202 may be connected to one first transistor 15; the third data line 33 connected to each column of green sub-pixels 203 may be combined with one The second transistor 16 is connected. Therefore, in the first direction, in the peripheral area 101 on the upper and lower sides of the display panel 1, the illumination intensity of all the red sub-pixels 202 and the green sub-pixels 203 in the same row can be reduced, thereby improving the upper and lower sides of the display panel. Display uniformity.
  • the first transistor 15 and the second transistor 16 may be N-type transistors or P-type transistors, and only need to adjust the level of the control voltage of the control terminal of the transistor.
  • the N-type transistor is turned on when the control voltage is at a high level
  • the P-type transistor is turned on when the control voltage is at a low level for a P-type transistor.
  • the signal control circuit may be disposed on the display panel 1, for example, on the array substrate, and may also be disposed on a printed circuit board (for example, flexible printing) that is connected to the array substrate. On the board).
  • a printed circuit board for example, flexible printing
  • the controller may connect a backlight 200 disposed on one side (back side) of the display panel 1, the backlight 200 being, for example, a direct type backlight and It is a dynamic backlight.
  • the display panel 1 includes an array substrate 120 and a counter substrate 110, which is, for example, a color filter substrate.
  • the backlight 200 includes a light guide plate 210 and an array of light emitting cells 220.
  • the light emitting unit array 220 includes a plurality of light emitting units arranged in an array, for example, the light emitting units include a red light unit (R), a green light unit (G), and a blue light unit (B), and combinations thereof Together to emit white light.
  • These lighting units can be light emitting diodes (LEDs), such as inorganic LEDs or organic LEDs. These lighting units can for example be at least partially controlled individually.
  • the light emitting unit array 220 may include an intermediate area and a peripheral area, and respectively correspond to the intermediate area 102 and the peripheral area 101 of the display area 10 of the display panel 1.
  • the dynamic backlight includes a blue light unit corresponding to the blue sub-pixel 201 in the first pixel 21 of the peripheral area 101 of the display panel 1.
  • the blue light unit is configured to have a relatively increased luminous intensity such that at least a portion of the blue light component of the white light emitted by the dynamic backlight of the peripheral region 101 is relatively increased.
  • the dynamic backlight may correspond to the entire display panel 1, so that the illumination intensity of all the sub-pixels in the pixel 2 of the display panel 1 may be adjusted; or the dynamic backlight may only include the blue color in the first pixel 21
  • the sub-pixel 201 corresponds to the blue light unit, so that the luminous intensity of the blue sub-pixel 201 in the first pixel 21 can be separately adjusted, thereby saving production cost.
  • the controller may further include a backlight driving circuit 230, and the backlight driving circuit 230 is connected to the backlight 200.
  • the backlight drive circuit 230 is configured to control the blue light unit to emit light such that the blue light unit has a relatively increased luminous intensity relative to other backlight units in the dynamic backlight.
  • Other backlight units may be, for example, a red light unit and a green light unit, and may also be a white unit.
  • the backlight drive circuit 230 can be integrated on a printed circuit board.
  • the backlight driving circuit 230 can be controlled by the same timing control signal as the gate driver 11, so that when the gate driver 11 drives the first pixel 21 for display, the backlight driving circuit 230 simultaneously controls the blue light.
  • the unit emits light to enhance the light-emitting intensity of the blue sub-pixel 201 in the first pixel 21, thereby improving the display effect of the edge of the display panel and improving the display quality.
  • the controller may include a data driving circuit.
  • the data driving circuit 12 may be disposed on one side of the display panel 1 of the liquid crystal display device, connected to the pixels of the display panel 1, thereby providing data signals to the pixels.
  • the data driving circuit 12 is configured to transmit a relatively increased gray scale voltage to the blue sub-pixels in the first pixel of the peripheral region of the display panel such that the blue sub-pixels in the first pixel emit light The intensity is relatively increased.
  • data drive circuit 12 can include voltage drive circuit 410 and gamma voltage circuit 420.
  • the gamma voltage circuit 420 is configured to generate a gray scale voltage according to the input display data; the voltage driving circuit 410 is configured to relatively increase the gray scale voltage transmitted to the blue sub-pixel 201 in the first pixel 21.
  • the data driving circuit 12 may further include a signal decoding circuit 430 for decoding a video signal or an image signal received from a signal source (eg, a modem) to obtain display data, and The display data is supplied to the gamma voltage circuit 420.
  • the voltage driving circuit 410 may include an amplifying circuit or the like, and the amplifying circuit may include, for example. Operational amplifiers, etc.
  • the liquid crystal display device may be a liquid crystal panel, an electronic paper, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • the controller can also be implemented by a processor having a logic operation function, and executing related operation instructions on the processor to perform the functions of the above controller.
  • the processor may be a general purpose central processing unit CPU that causes the CPU to perform the functions of the controller by connecting the circuitry of the associated component to the bus of the CPU; for example, the processor may be a dedicated processor, eg, for execution including the controller described above
  • the microcontroller CPU, the programmable logic array FPGA, the application specific integrated circuit ASIC, etc., designed for the purpose of the function are connected to the pins of the dedicated processor by the circuit of the relevant component to perform the function of the controller.
  • An embodiment of the present disclosure further provides an array substrate that can be used in a liquid crystal display device according to any of the embodiments of the present disclosure.
  • the array substrate includes a base substrate and a plurality of pixels disposed on the base substrate.
  • the base substrate has a display area including a middle area and a peripheral area outside the intermediate area.
  • a plurality of pixel arrays are arranged in the display area, each pixel including a red sub-pixel, a blue sub-pixel and a green sub-pixel, and at least one first pixel is disposed in the peripheral area.
  • the array substrate further includes a plurality of data lines and signal control circuits.
  • the plurality of data lines include a first data line, a second data line, and a third data line, the first data line is connected to the blue sub-pixel in the first pixel, and the second data line is connected to the red sub-pixel in the first pixel.
  • the third data line is connected to the green sub-pixel in the first pixel.
  • the signal control circuit is coupled to the plurality of data lines and configured to control a size of the data signals transmitted by the plurality of data lines to the first pixel to adjust the illumination intensity of each of the sub-pixels in the first pixel.
  • the signal control circuit in the embodiment of the present disclosure is disposed on the array substrate.
  • the embodiment of the present disclosure further provides a dynamic backlight that can be used in the liquid crystal display device according to any of the embodiments of the present disclosure.
  • the dynamic backlight includes a middle area and a peripheral area outside the middle area, and the surrounding area includes The first backlight unit is included.
  • the first backlight unit is configured to have a relatively increased luminous intensity.
  • the dynamic backlight also includes a backlight drive circuit.
  • the backlight drive circuit is configured to control the first backlight unit to emit light such that the first backlight unit has a relatively increased illumination intensity relative to other backlight units in the dynamic backlight.
  • the first backlight unit may be a blue light unit
  • the other backlight units may be a red light unit or a green light unit.
  • Other backlight units can also be white light units.
  • the embodiment of the present disclosure further provides a data driving circuit, which can be used in the liquid crystal display device according to any embodiment of the present disclosure.
  • each pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the data driving circuit is configured to transmit a relatively increased gray scale voltage to the first sub-pixel.
  • the data driving circuit may include a voltage driving circuit and a gamma voltage circuit.
  • the gamma voltage circuit is configured to generate a gray scale voltage according to the input display data; the voltage driving circuit can increase the gray scale voltage transmitted to the first sub-pixel, thereby increasing the luminous intensity of the first sub-pixel; the voltage driving circuit can also be reduced Smallly transmitted to the gray scale voltages of the second sub-pixel and the third sub-pixel, thereby reducing the luminous intensity of the second sub-pixel and the third sub-pixel.
  • the data driving circuit may further include a signal decoding circuit.
  • the signal decoding circuit is configured to decode the received video signal or image signal to obtain display data, and provide the display data to the gamma voltage circuit.
  • the data drive circuit can also include an output buffer amplifier.
  • the gamma voltage circuit may include a digital to analog conversion circuit for converting the input display data signal into an analog voltage, that is, a gray scale voltage corresponding to the pixel.
  • the voltage driving circuit can receive the analog voltage of the first sub-pixel outputted from the digital-to-analog conversion circuit, and amplify the analog voltage of the first sub-pixel, and the amplified analog voltage is transmitted to the output buffer amplifier through a gray-scale voltage path to Drives the load connected to the data line (ie the first sub-pixel).
  • an output buffer amplifier is used to further amplify the analog signal to drive a large capacitive load connected to the data line, for example, the large capacitive load has a capacitance level of 10 2 pF.
  • the output buffer amplifier can include a two-stage op amp structure, the first stage op amp structure can be a differential amplifier, and the second stage op amp structure can be an output op amp. Both of these op amp structures have a bias circuit. The larger the bias current, the stronger the drive capability of the output buffer amplifier.
  • the first sub-pixel may be a blue sub-pixel
  • the second sub-pixel and the third sub-pixel may be a red sub-pixel and a blue sub-pixel, respectively.
  • the data driving circuit may be a digital driver or an analog driver
  • the voltage driving circuit may include an amplifying circuit or the like
  • the amplifying circuit may include, for example, an operational amplifier or the like.
  • the embodiment of the present disclosure further provides a driving method for a liquid crystal display device according to any one of the embodiments of the present disclosure.
  • the driving method provided by the embodiment of the present disclosure includes the operations of: increasing the luminous intensity of the blue sub-pixel in the first pixel; and/or decreasing the luminous intensity of the other sub-pixels in the first pixel, thereby being relative to the first
  • the illumination intensity of the blue sub-pixels in the first pixel can be relatively increased.
  • the other sub-pixels may include a red sub-pixel and a green sub-pixel, and may further include a white sub-pixel.
  • the driving method includes increasing a data signal applied to a data line connected to a blue sub-pixel in the first pixel to relatively increase the luminous intensity of the blue sub-pixel.
  • the liquid crystal display device may include a data driving circuit, an amplifier, and a first data line, the first data line being connected to the blue sub-pixel in the first pixel.
  • the driving method can include driving the amplifier to increase the data signal applied to the first data line by the data driving circuit.
  • the driving method can include reducing a data signal applied to a data line connected to other sub-pixels in the first pixel to reduce the illumination intensity of other sub-pixels in the first pixel.
  • the liquid crystal display device may include a data driving circuit, a first transistor, a second transistor, a second data line, and a third data line, and an input end and an output end of the first transistor are respectively connected to the data driving circuit and the second data line, An input end and an output end of the second transistor are connected to the data driving circuit and the third data line, respectively.
  • the driving method may include controlling a gate voltage of the first transistor and the second transistor with a data driving circuit to reduce data signals applied to the second data line and the third data line. That is, the data driving circuit can control the degree of opening of the first transistor and the second transistor to be less open, thereby reducing the data signal flowing through the first transistor and the second transistor, that is, reducing the application to the second data. Data signals on the line and the third data line.
  • a liquid crystal display device can include a dynamic backlight that includes a blue light unit corresponding to a blue sub-pixel in a first pixel.
  • the driving method can include controlling the blue light unit illumination with the backlight driving circuit such that the blue sub-pixels in the first pixel have increased luminous intensity relative to other sub-pixels in the first pixel.
  • the liquid crystal display device further includes a data driving circuit.
  • Data drive circuit including voltage drive Road and gamma voltage circuits.
  • the gamma voltage circuit is configured to generate a gray scale voltage based on the input display data;
  • the voltage drive circuit is configured to relatively increase a gray scale voltage transmitted to the blue sub-pixels in the first pixel.
  • the driving method may include: increasing a grayscale voltage transmitted to the blue sub-pixel in the first pixel by using a voltage driving circuit, thereby increasing a luminous intensity of the blue sub-pixel in the first pixel; Or using a voltage driving circuit to reduce the gray scale voltage transmitted to other sub-pixels in the first pixel, thereby reducing the luminous intensity of other sub-pixels in the first pixel.

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Abstract

一种液晶显示装置及其驱动方法。液晶显示装置包括显示面板(1)和控制器。显示面板(1)具有显示区域(10)，在显示区域(10)中设置有排列为矩阵的多个像素(2)，每个像素(2)包括红色子像素(202)、蓝色子像素(201)和绿色子像素(203)，显示区域(10)包括中间区(102)和中间区(102)外侧的周边区(101)，在周边区(101)中设置有至少一个第一像素(21)，控制器被配置为相对增加第一像素(21)中的蓝色子像素(201)的发光强度。

Description

液晶显示装置及其驱动方法
交叉引用
本申请要求于2017年04月21日递交的中国专利申请第201710266661.2号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及一种液晶显示装置及其驱动方法。
背景技术
液晶显示(Liquid Crystal Display，LCD)技术是目前相对成熟的显示技术。液晶显示器采用液晶显示技术形成，其具有高画质、省电、机身薄及应用范围广等优点，已经成为显示装置中的主流。随着显示技术的发展，窄边框液晶显示面板成为液晶显示器的发展趋势。目前，在液晶显示面板的制备过程中，在破真空工序和切断工序中，液晶显示面板容易发生变形，从而造成液晶显示面板的边缘和中间的盒厚不均匀，进而液晶显示面板出现周边发黄等不良现象，影响液晶显示面板的显示效果、降低显示品质。
发明内容
本公开至少一实施例提供一种液晶显示装置，其包括显示面板和控制器。该显示面板具有显示区域，在显示区域中设置有排列为矩阵的多个像素，每个像素包括红色子像素、蓝色子像素和绿色子像素，显示区域包括中间区和中间区外侧的周边区，在周边区中设置有至少一个第一像素。在液晶显示装置的操作中，控制器可以相对增加第一像素中的蓝色子像素的发光强度。
例如，本公开至少一实施例提供的液晶显示装置还包括：多条数据线和数据驱动电路。控制器包括信号控制电路，多条数据线包括第一数据线、第二数据线和第三数据线，第一数据线与第一像素中的蓝色子像素连接，第二数据线与第一像素中的红色子像素连接，第三数据线与第一像素中的绿色子像素连接；该数据驱动电路被配置为向多条数据线施加数据信号；该信号控制电路设置在数据驱动电路与多条数据线之间，并用于控制多条数据线传输到第一像素 的数据信号的大小，以调节第一像素中的各个子像素的发光强度。
例如，在本公开至少一实施例提供的液晶显示装置中，信号控制电路包括放大器。该放大器的输入端与数据驱动电路连接，放大器的输出端与第一数据线连接，放大器被配置为放大施加给第一数据线的数据信号。
例如，在本公开至少一实施例提供的液晶显示装置中，信号控制电路包括第一晶体管和第二晶体管。该第一晶体管的输入端和输出端分别与数据驱动电路和第二数据线连接；该第二晶体管的输入端和输出端分别与数据驱动电路和第三数据线连接。第一晶体管和第二晶体管的控制端被配置为施加控制电压以分别调节施加给第二数据线和第三数据线的数据信号的大小。
例如，在本公开至少一实施例提供的液晶显示装置中，在周边区或中间区中还设置有至少一个第二像素。多条数据线沿像素的列方向延伸且还包括第四数据线，第二像素的蓝色子像素与第一像素的蓝色子像素位于同一列中，第四数据线连接到第二像素中的蓝色子像素。
例如，在本公开至少一实施例提供的液晶显示装置中，在周边区或中间区中还设置有至少一个第二像素。多条数据线沿像素的列方向延伸且还包括第五数据线和第六数据线，第二像素与第一像素位于同一列中，第五数据线连接到第二像素中的红色子像素，第六数据线线连接到第二像素中的绿色子像素。
例如，在本公开至少一实施例提供的液晶显示装置中，控制器连接动态背光源。该动态背光源包括与第一像素中的蓝色子像素相对应的蓝光单元。该蓝光单元被配置为具有相对增加的发光强度。
例如，在本公开至少一实施例提供的液晶显示装置中，控制器还包括背光源驱动电路，该背光源驱动电路连接动态背光源。该背光源驱动电路被配置为控制蓝光单元发光，以使得蓝光单元相对于动态背光源中的其他背光单元具有相对增加的发光强度。
例如，在本公开至少一实施例提供的液晶显示装置中，控制器包括数据驱动电路。该数据驱动电路被配置为将相对增加的灰阶电压传输给第一像素中的蓝色子像素。
例如，在本公开至少一实施例提供的液晶显示装置中，数据驱动电路包括电压驱动电路和伽马电压电路。伽马电压电路被配置为根据输入的显示数据产生灰阶电压；电压驱动电路被配置为相对增加传输给第一像素中的蓝色子像素的灰阶电压。
本公开至少一实施例提供一种用于上述任一所述的液晶显示装置的驱动方法。该驱动方法包括：增加第一像素中的蓝色子像素的发光强度，和/或降低第一像素中的其他子像素的发光强度。相对于第一像素中的其他子像素，第一像素中的蓝色子像素的发光强度可相对增加。
例如，在本公开至少一实施例提供的驱动方法中，该驱动方法包括增加施加到与第一像素中的蓝色子像素连接的数据线上的数据信号。
例如，在本公开至少一实施例提供的驱动方法中，该驱动方法包括降低施加到与第一像素中的其他子像素连接的数据线上的数据信号。
例如，在本公开至少一实施例提供的驱动方法中，在液晶显示装置包括动态背光源的情况下，动态背光源包括与第一像素中的蓝色子像素相对应的蓝光单元，该驱动方法包括：控制蓝光单元发光，以使得第一像素中的蓝色子像素相对于第一像素中的其他子像素具有增加的发光强度。
例如，在本公开至少一实施例提供的驱动方法中，该驱动方法包括增加传输给第一像素中的蓝色子像素的灰阶电压。
需要理解的是本公开的上述概括说明和下面的详细说明都是示例性和解释性的，用于进一步说明所要求的发明。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开一实施例提供的一种液晶显示装置的平面示意图；
图2为本公开一实施例的一示例提供的一种液晶显示装置的结构示意图；
图3为本公开一实施例的一示例提供的另一种液晶显示装置的结构示意图；
图4为本公开一实施例的另一示例提供的一种液晶显示装置的结构示意图；
图5为本公开一实施例的另一示例提供的另一种液晶显示装置的结构示意图；
图6A为本公开一实施例的又一示例提供的一种液晶显示装置的结构示意图；
图6B为本公开一实施例提供的一种背光源的平面结构示意图；以及
图7为本公开一实施例提供的一种数据驱动电路的框图。
具体实施方式
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
附图中各个部件或结构并非严格按照比例绘制，为了清楚起见，可能夸大或缩小各个部件或结构的尺寸，但是这些不应用于限制本公开的范围。为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
随着显示技术的发展，窄边框是显示装置的发展趋势。在制备液晶显示装置的过程中，液晶显示面板容易发生变形，从而导致液晶显示面板的周边区域与中间区域的厚度不一致，进而在液晶显示面板的周边区域容易出现显示发黄等不良现象。对于超窄边框的显示产品，例如，对于栅极驱动器集成在液晶显示面板上(Gate driver On Array,GOA)的超窄边框液晶显示装置，由于液晶盒厚不均匀，液晶显示装置的周边区域显示发黄的现象更加严重，从而影响显示效果、降低显示品质。
本公开至少一实施例提供一种液晶显示装置及其驱动方法。该液晶显示装置包括显示面板和控制器。该显示面板具有显示区域，在显示区域中设置有排 列为矩阵的多个像素，每个像素包括红色子像素、蓝色子像素和绿色子像素，显示区域包括中间区和中间区外侧的周边区，在周边区中设置有至少一个第一像素，控制器可相对增加第一像素中的蓝色子像素的发光强度。
在液晶显示装置中，其显示区域的周边区的第一像素的发光强度可以被单独控制，相对于第一像素中的其他子像素，第一像素中的蓝色子像素的发光强度可以相对增加，由于蓝光和黄光彼此互补，叠加之后为白光，因此上述相对增加的蓝光分量可以抵消发黄的周边区所产生的黄光，由此减小或消除周边区显示画面的色偏，从而改善显示面板的周边区的显示效果，提高液晶显示面板的显示质量，提升液晶显示装置的良率。
需要说明的是，在本公开的实施例的描述中，“相对增加”包括：在像素中的其他颜色的子像素的发光强度保持在预定的正常灰阶的情况下，增加像素中的蓝色子像素的发光强度，或者，在像素中蓝色子像素的发光强度保持在预定的正常灰阶的情况下，降低像素中的其他颜色子像素(例如红色子像素和绿色子像素)的发光强度，又或者，像素中蓝色子像素的发光强度相对于预定的正常灰阶增加，同时在像素中的其他颜色子像素的发光强度相对于预定的正常灰阶减小。这里“预定的正常灰阶”指代在没有进行本公开实施例所进行处理以避免周边发黄问题之前，显示装置的像素所应呈现的灰阶。例如，在显示画面时，蓝色子像素的发光强度大于其预定的发光强度；和/或红色子像素和绿色子像素的发光强度小于其预定的发光强度。
在本公开下面的描述中，第一方向为列方向，第二方向为行方向，且第一方向和第二方向相互垂直。“垂直”可以指代严格垂直，或者也可以指代近似垂直。
下面对本公开的几个实施例进行详细说明，但是本公开并不限于这些具体的实施例。
本公开实施例提供一种液晶显示装置，图1为本公开实施例提供的一种液晶显示装置的平面示意图；图2为本公开实施例的一示例提供的一种液晶显示装置的结构示意图；图3为本公开实施例的一示例提供的另一种液晶显示装置的结构示意图。
例如，如图1和图2所示，该液晶显示装置包括显示面板1和控制器。该显示面板1具有显示区域10，在显示区域10中设置有排列为n行×m列(例如720行×1080列)矩阵的多个像素2，每个像素2包括蓝色子像素201、红色 子像素202和绿色子像素203，显示区域10包括中间区102和设置在中间区102外侧(例如围绕中间区102)的周边区101，在周边区101中设置有至少一个第一像素21。控制器被配置为相对增加第一像素21中的蓝色子像素201的发光强度，从而在液晶显示装置的操作中，相对于第一像素21中的其他(颜色)子像素，第一像素21中的蓝色子像素201的发光强度可以被相对增加。
在液晶显示装置中，其显示区域的周边区的第一像素的发光强度可以被单独控制，从而相对于第一像素中的其他子像素，第一像素中的蓝色子像素的发光强度可以被相对地增加，由于蓝光和黄光是互补色，两者叠加之后变成白光，因此上述相对增加的蓝光分量可以抵消发黄的周边区所产生的黄光，从而有效改善液晶显示面板周边区显示发黄等不良现象，进而提高液晶显示面板的显示效果、显示质量，提升液晶显示装置的良率。
例如，如图1所示，中间区102位于显示面板1的中部，周边区101位于显示面板1的四周，且中间区102被周边区101围绕。
例如，中间区102的边缘与距离中间区102的边缘最近的显示区域的边缘的距离d为3mm至5mm，例如，d可以选择为3mm、4mm或5mm。
例如，在本公开实施例中，像素2中的绿色子像素203、红色子像素202和蓝色子像素201排列在同一行。但不限于此，像素2中的各个子像素还可以排列在同一列中，或者按照三角形(Δ)或马赛克方式排列等，本公开的实施例对各个子像素的排布方式不作限制。
例如，如图2所示，该液晶显示装置还包括多条数据线3，该多条数据线3沿第一方向(即列方向)延伸。该多条数据线3包括第一数据线31、第二数据线32和第三数据线33，第一数据线31与第一像素21中的蓝色子像素201连接，第二数据线32与第一像素21中的红色子像素202连接，第三数据线33与第一像素21中的绿色子像素203连接。
例如，该液晶显示装置还包括数据驱动电路12。数据驱动电路12被配置为向多条数据线3施加数据信号，该数据信号为电压信号，用于控制相应的子像素在显示中的发光强度以呈现一定的灰阶。例如，数据信号的电压越高则代表灰阶越大，由此使得子像素的发光强度越大。
例如，数据驱动电路12可以包括数字驱动器和模拟驱动器。模拟驱动器输入的是红绿蓝(RGB)模拟信号，然后将该RGB模拟信号经由薄膜晶体管输出到像素上；而数字驱动器输入的是RGB数字信号，该数字信号在驱动器 内部经过D/A(数/模)转换和伽马(GAMMA)校正，以转换为模拟信号再经由薄膜晶体管输出到像素上。虽然图中示出了多个单独的数据驱动电路12，但是这些数据驱动电路12例如可以集成在同一个驱动芯片中，或者为同一个电路等。
例如，如图2所示，本公开实施例提供的液晶显示装置还包括栅极驱动器11，每个子像素可以包括开关晶体管14，栅极驱动器11通过多条栅线13与各行子像素的开关晶体管14电连接，用于为各个开关晶体管14提供栅极电压，以控制开关晶体管14的工作状态。
例如，在本公开实施例中，栅极驱动器11可以集成在显示面板1上，即该液晶显示装置采用GOA技术，从而能有效降低生产成本和功耗，省去绑定(bonding)工艺，提升产品良率和产能，实现显示面板的窄边框化。栅极驱动器11还可以设置在液晶显示装置的印刷电路板上。并且，可以在显示面板的一侧设置栅极驱动器11，也可以在显示面板的两侧都设置栅极驱动器11。
例如，开关晶体管14可以为薄膜晶体管。薄膜晶体管可以包括氧化物薄膜晶体管、非晶硅薄膜晶体管或多晶硅薄膜晶体管等。
例如，液晶显示装置的各个子像素还可以包括存储电容(图中未示出)。存储电容用于将充好电的像素的电压保持到下一帧扫描。例如，存储电容可以包括通过栅线形成的存储电容(即Cs on gate)或通过公共电极线形成的存储电容(即Cs on common)等，与后者不同，前者不需额外增加一条公共电极走线，因此其开口率较大。例如，本公开实施例中的液晶显示装置采用通过栅线形成存储电容的方式。
例如，控制器可以包括信号控制电路，信号控制电路可以设置在数据驱动电路12与多条数据线3之间，并用于控制多条数据线3传输到第一像素21的数据信号的大小，以调节第一像素21中的各个子像素的发光强度。例如，如图2所示，在本公开实施例的一示例中，信号控制电路包括至少一个放大器41。放大器41可以放大施加给第一数据线31的数据信号，从而增加第一像素21中的蓝色子像素201的发光强度。放大器41的输入端与数据驱动电路12连接，放大器41的输出端与第一数据线31连接。例如，放大器41可以从数据驱动电路12接收数据信号，并对数据信号进行放大，然后将放大后的数据信号传输给第一数据线31，最后放大后的数据信号通过第一数据线31被输入第一像素21中的蓝色子像素201中。
例如，放大器41可以与至少一条第一数据线31连接，以放大施加给该第一数据线31的数据信号。由于第一数据线31与位于同一列的所有蓝色子像素201连接，从而放大器41可以同时增加位于同一列的所有第一像素21中的蓝色子像素201的发光强度。在第二方向上，在显示面板1左右两侧，不同的放大器41可以增强不同列的蓝色子像素201的发光强度，从而改善显示面板左右两侧区域显示画面发黄的不良现象。
例如，与不同列的第一数据线31连接的放大器41可以不同，从而对不同列的蓝色子像素201的发光强度进行不同程度的增强。例如，对于显示面板变形程度较大的区域，放大器41可以具有较大的放大比率，从而对于该区域的蓝色子像素201的发光强度进行较大幅度的增强。放大器41可以根据不同区域的蓝色子像素201需要增加的发光强度的值而具体设置。与不同列的第一数据线31连接的放大器41还可以相同，本公开实施例对此不作限制。需要说明的是，显示面板变形程度较大的区域可以为显示发黄较严重的区域，例如，可以为周边区101中靠近显示区域10边缘的区域。
例如，放大器41的一个具体示例可以由电子管、晶体管、电源变压器或其他电器元件组成。例如，放大器41可以为单级耦合放大电路，也可以为多级耦合放大电路。放大器41可以对输入信号进行线性或非线性变换，以得到不同的输出信号。线性变换例如可以包括一次函数变换等，非线性变换可以包括指数变换或二次函数变换等。
例如，放大器41的其他具体示例可以为电子放大器、机电放大器、液动放大器或气动放大器等中的一种或几种的组合。电子放大器例如可以包括运算放大器等。当放大器41为运算放大器时，数据驱动电路12可以与运算放大器的同相输入端连接。
例如，如图3所示，在周边区101或中间区102中还设置有至少一个第二像素22，多条数据线3还包括第四数据线34，第四数据线34也沿列方向延伸，即沿第一方向延伸。第二像素22与第一像素21位于同列但不同行，第四数据线34连接到第二像素22中的蓝色子像素201；即，第一数据线31和第四数据线34与同一列中不同的蓝色子像素201连接。从而，与图2所示的液晶显示装置不同，图3所示的液晶显示装置可以对同一列中的第一像素21与第二像素22的蓝色子像素201分别控制，单独增强第一像素21中的蓝色子像素201的发光强度。
需要说明的是，第二像素22和第一像素21被进行不同的操作。例如，第二像素22的发光强度不被调节；或者，第二像素22的发光强度与第一像素21的发光强度被进行不同程度调节。例如，通过信号控制电路同时增加第一像素21和第二像素22的发光强度，但是第一像素21的发光强度的增加量大于第二像素22的发光强度的增加量，从而提高显示面板1整体的亮度，同时改善显示面板周边发黄的不良现象。
例如，在第一方向上，第一像素21可以位于显示面板1上下两侧的周边区101中，从而放大器41可以增强显示面板1上下两侧的蓝色子像素201的发光强度。
例如，如图3所示，在第二方向上，与每一列蓝色子像素201连接的第一数据线31都可以与一个放大器41相连。在第一方向上，在显示面板1上下两侧的周边区101中，同一行中所有的蓝色子像素201的发光强度都可以被相对增加，从而提高显示面板上下两侧的显示均匀性。
需要说明的是，每条第一数据线31连接的蓝色子像素201的个数可以根据实际需求具体设置，在此不作限制。例如，每一条第一数据线31都连接位于相应列的10个蓝色子像素201。
图4为本公开实施例的另一示例提供的一种液晶显示装置的结构示意图，图5为本公开实施例的另一示例提供的另一种液晶显示装置的结构示意图。
例如，如图4所示，在本公开实施例的另一示例中，控制器可以包括信号控制电路，且该信号控制电路包括第一晶体管15和第二晶体管16。该第一晶体管15的输入端和输出端分别与数据驱动电路12和第二数据线32连接；该第二晶体管16的输入端和输出端分别与数据驱动电路12和第三数据线33连接。在液晶显示装置的操作中，第一晶体管15和第二晶体管16的控制端可被施加控制电压，以分别调节施加给第二数据线32和第三数据线33的数据信号的大小。
例如，输入端可以为晶体管的源极，以用于输入信号；输出端可以为晶体管的漏极，以用于输出信号；而控制端为晶体管的栅极，用于接收控制电压从而控制晶体管的工作状态。然而，考虑到晶体管的源极和漏极的对称性，输入端也可以为晶体管的漏极，而输出端为晶体管的源极。
例如，第二数据线32和第三数据线33分别与一列红色子像素202和一列绿色子像素203相连接，从而第一晶体管15和第二晶体管16可以分别控制一 列红色子像素202和一列绿色子像素203。
例如，数据驱动电路12可以对第一晶体管15和第二晶体管16的控制端施加控制电压，从而控制第一晶体管15和第二晶体管16的开启程度，以减小第二数据线32和第三数据线33传输的数据信号，进而降低第一像素21中的红色子像素202和绿色子像素203的发光强度。例如，数据驱动电路12可以对第一晶体管15的控制端施加第一控制电压，对第二晶体管16的控制端施加第二控制电压，该第一控制电压和第二控制电压可以相同，从而第一像素21中的红色子像素202和绿色子像素203的发光强度可以降低相同的幅度。第一控制电压和第二控制电压也可以不同，例如，由于红色滤光片和绿色滤光片的透过率不相同，从而红色子像素202和绿色子像素203的发光强度不均匀，利用不同的控制电压，对第一像素21中的红色子像素202和绿色子像素203的发光强度进行不同程度的调节，以进一步提高显示均匀性、提升显示质量。
例如，与不同列的第二数据线32连接的第一晶体管15可以相同，也可以不同。数据驱动电路12对每个第一晶体管15施加的控制电压可以相同，也可以不相同。由此，第一晶体管15可以对不同列的红色子像素202的发光强度进行相同或不同程度的调节，以满足不同的实际需求。
需要说明的是，第二晶体管16与第一晶体管15具有相似的结构和功能，其不同之处在于：第二晶体管16用于对绿色子像素202的发光强度进行调节。因此，本公开的实施例中，对第一晶体管15的相关说明在不矛盾的情况下也适用于第二晶体管16，重复之处不再赘述。
例如，如图5所示，在本示例提供的另一种液晶显示装置中，多条数据线3还包括第五数据线35和第六数据线36，第五数据线35和第六数据线36也沿列方向延伸。第五数据线35和第六数据线36分别连接到第二像素22中的红色子像素202和绿色子像素203。也就是说，在同一列中，第一像素21中的红色子像素202和第二像素22中的红色子像素202分别与第二数据线32和第五数据线35连接；第一像素21中的绿色子像素203和第二像素22中的绿色子像素203分别与第三数据线33和第六数据线36连接。从而，与图4所示的液晶显示装置不同，图5所示的液晶显示装置可以对位于同一列的第一像素21和第二像素22分别控制，单独降低第一像素21中的红色子像素202和绿色子像素203的发光强度。
例如，每条第二数据线32连接的红色子像素202的个数可以根据实际需 求具体设置，每条第三数据线33连接的绿色子像素203的个数也可以根据实际需求具体设置，在此不作限制。例如，每一条第二数据线32都连接位于相应列的10个红色子像素202；每一条第三数据线33也都连接位于相应列的10个绿色子像素203。
例如，如图4所示，在第一方向上，第一像素21可以位于显示面板1上下两侧的周边区101中。第一晶体管15和第二晶体管16的控制端可被施加控制电压，以分别调节第二数据线32和第三数据线33上的数据信号，从而降低显示面板1上下两侧的红色子像素202和绿色子像素203的发光强度。
例如，在第二方向上，与每一列红色子像素202连接的第二数据线32都可以与一个第一晶体管15连接；与每一列绿色子像素203连接的第三数据线33都可以与一个第二晶体管16连接。从而，在第一方向上，在显示面板1上下两侧的周边区101中，同一行中所有的红色子像素202和绿色子像素203的发光强度都可以被降低，从而提高显示面板上下两侧的显示均匀性。
例如，第一晶体管15和第二晶体管16可以为N型晶体管，还可以为P型晶体管，只需要调整晶体管的控制端的控制电压的电平即可。例如，对于N型晶体管，在控制电压为高电平时，该N型晶体管处于开启状态；对于P型晶体管时，在控制电压为低电平时，该P型晶体管会处于开启状态。
需要说明的是，在本公开实施例的上述示例中，信号控制电路可以设置在显示面板1上，例如形成在阵列基板上，还可以设置在与阵列基板信号连接的印刷电路板(例如柔性印刷电路板)上。
例如，在本公开实施例的又一示例中，如图6A所示，控制器可以连接设置在显示面板1一侧(背侧)的背光源200，该背光源200例如为直下式背光源且为动态背光源。显示面板1包括阵列基板120和对置基板110，该对置基板110例如为彩膜基板。背光源200包括导光板210和发光单元阵列220。
例如，如图6B所示，该发光单元阵列220包括多个排列为阵列的发光单元，例如这些发光单元包括红光单元(R)、绿光单元(G)和蓝光单元(B)，它们组合在一起以发出白光。这些发光单元可以为发光二极管(LED)，例如无机LED或有机LED。这些发光单元例如可以至少部分被单独控制。例如，该发光单元阵列220可以包括中间区域和周边区域，且分别与显示面板1的显示区域10的中间区102和周边区101相对应。也就是说，在垂直于阵列基板120的方向上，发光单元阵列220的中间区域和显示区域10的中间区102重叠， 发光单元阵列220的周边区域和显示区域10的周边区101重叠。动态背光源包括与显示面板1的周边区101的第一像素21中的蓝色子像素201相对应的蓝光单元。蓝光单元被配置为具有相对增加的发光强度，从而使得至少部分周边区101的动态背光源发出的白光中的蓝光成分被相对增加。
例如，动态背光源可以与整个显示面板1相对应，从而显示面板1的像素2中的所有子像素的发光强度都可以被调节；或者动态背光源可以仅包含与第一像素21中的蓝色子像素201相对应的蓝光单元，从而可单独调节第一像素21中的蓝色子像素201的发光强度，节约生产成本。
例如，如图6B所示，控制器还可以包括背光源驱动电路230，背光源驱动电路230连接背光源200。背光源驱动电路230被配置为控制蓝光单元发光，以使得蓝光单元相对于动态背光源中的其他背光单元具有相对增加的发光强度。其他背光单元例如可以为红光单元和绿光单元，还可以为白色单元。
例如，背光源驱动电路230可以集成在印刷电路板上。例如，在一个示例中，背光源驱动电路230可以与栅极驱动器11通过相同的时序控制信号进行控制，从而当栅极驱动器11驱动第一像素21进行显示时，背光源驱动电路230同时控制蓝光单元发光，以增强第一像素21中的蓝色子像素201的发光强度，从而改善显示面板边缘的显示效果，提升显示品质。
例如，在本公开实施例的再一示例中，控制器可以包括数据驱动电路。参考图1所示，数据驱动电路12可以设置在液晶显示装置的显示面板1的一侧，与显示面板1的像素连接，从而为像素提供数据信号。该示例中，数据驱动电路12被配置为将相对增加的灰阶电压传输给显示面板的周边区的第一像素中的蓝色子像素，从而使得该第一像素中的蓝色子像素的发光强度被相对地增加。
例如，如图7所示，在一个示例中，数据驱动电路12可以包括电压驱动电路410和伽马电压电路420。该伽马电压电路420被配置为根据输入的显示数据产生灰阶电压；电压驱动电路410被配置为相对增加传输给第一像素21中的蓝色子像素201的灰阶电压。在另一个示例中，数据驱动电路12还可以包括信号解码电路430，信号解码电路430用于将从信号源(例如调制解调器)接收到的视频信号或图像信号进行解码，从而得到显示数据，并且将该显示数据提供给伽马电压电路420。
例如，该电压驱动电路410可以包括放大电路等，放大电路例如可以包括 运算放大器等。
例如，液晶显示装置可以为液晶面板、电子纸、液晶电视、液晶显示器、数码相框、手机、平板电脑等。
需要说明的是，本公开实施例上述各个示例在不矛盾的情况下，可以相互组合以得到新的实施例，所有这些可能的实施例都被包含在本公开的权利要求书所限定的范围内。
需要说明的是，尽管没有具体描述，本领域技术人员可以理解，控制器也可采用具有逻辑运算功能的处理器实现，在处理器上执行相关的运算指令以执行上述控制器的功能。例如，处理器可以是通用中央处理器CPU，通过将相关部件的电路连接到CPU的总线上以使得CPU执行控制器的功能；例如，处理器可以是专用处理器，例如为执行包括上述控制器的功能在内的目的而设计的单片机CPU、可编程逻辑阵列FPGA、专用集成电路ASIC等，通过将相关部件的电路连接到专用处理器的针脚上以使得其执行控制器的功能。
本公开实施例还提供一种阵列基板，该阵列基板可以用于本公开任一实施例所述的液晶显示装置中。
例如，该阵列基板包括衬底基板以及设置在衬底基板上的多个像素。衬底基板具有显示区域，显示区域包括中间区和中间区外侧的周边区。多个像素阵列排布在显示区域内，每个像素包括红色子像素、蓝色子像素和绿色子像素，在周边区中设置有至少一个第一像素。
例如，该阵列基板还包括多条数据线和信号控制电路。多条数据线包括第一数据线、第二数据线和第三数据线，第一数据线与第一像素中的蓝色子像素连接，第二数据线与第一像素中的红色子像素连接，第三数据线与第一像素中的绿色子像素连接。信号控制电路与多条数据线连接，并被配置为控制多条数据线传输到第一像素的数据信号的大小，以调节第一像素中各个子像素的发光强度。
本公开实施例提供的信号控制电路的设置可以参照上述液晶显示装置的实施例中的相关描述，重复之处不再赘述。本公开实施例中的信号控制电路设置在阵列基板上。
本公开实施例还提供一种动态背光源，该动态背光源可以用于本公开任一实施例所述的液晶显示装置中。
例如，动态背光源包括中间区域和中间区域外侧的周边区域，周边区域包 括第一背光单元。该第一背光单元被配置为具有相对增加的发光强度。
例如，动态背光源还包括背光源驱动电路。背光源驱动电路被配置为控制第一背光单元发光，以使得第一背光单元相对于动态背光源中的其他背光单元具有相对增加的发光强度。
例如，第一背光单元可以为蓝光单元，其他背光单元可以为红光单元或绿光单元。其他背光单元还可以为白光单元。
本公开实施例还提供一种数据驱动电路，该数据驱动电路可以用于本公开任一实施例所述的液晶显示装置中。
例如，每个像素包括第一子像素、第二子像素和第三子像素，数据驱动电路被配置为可以将相对增加的灰阶电压传输给第一子像素。
例如，数据驱动电路可以包括电压驱动电路和伽马电压电路。该伽马电压电路被配置为根据输入的显示数据产生灰阶电压；电压驱动电路可以增加传输给第一子像素的灰阶电压，从而增加第一子像素的发光强度；电压驱动电路还可以减小传输给第二子像素和第三子像素的灰阶电压，从而降低第二子像素和第三子像素的发光强度。
例如，数据驱动电路还可以包括信号解码电路。信号解码电路用于将接收到的视频信号或图像信号进行解码，从而得到显示数据，并且将该显示数据提供给伽马电压电路。
例如，数据驱动电路还可以包括输出缓冲放大器。伽马电压电路可以包括数模转换电路，该数模转换电路用于将输入的显示数据信号转换为模拟电压，该模拟电压即对应像素的灰阶电压。电压驱动电路可以接收从数模转换电路输出的第一子像素的模拟电压，并对第一子像素的模拟电压进行放大，放大后的模拟电压通过一路灰阶电压通路传递到输出缓冲放大器，以驱动与数据线连接的负载(即第一子像素)。
例如，输出缓冲放大器用于进一步放大模拟信号，以驱动与数据线连接的大容性负载，例如该大容性负载具有102pF电容量级。输出缓冲放大器可以包括两级运放结构，第一级运放结构可以为差动放大器，第二级运放结构可以为输出运放。这两级运放结构都有一个偏压电路，偏压电流越大，输出缓冲放大器的驱动能力越强。
例如，第一子像素可以为蓝色子像素，第二子像素和第三子像素可以分别为红色子像素和蓝色子像素。
例如，数据驱动电路可以为数字驱动器或模拟驱动器，电压驱动电路可以包括放大电路等，放大电路例如可以包括运算放大器等。
本公开实施例还提供一种用于本公开任一实施例所述的液晶显示装置的驱动方法。
例如，本公开实施例提供的驱动方法包括如下操作：增加第一像素中的蓝色子像素的发光强度；和/或降低第一像素中的其他子像素的发光强度，由此相对于第一像素中的其他子像素，第一像素中的蓝色子像素的发光强度可被相对增加。
例如，其他子像素可以包括红色子像素和绿色子像素，还可以进一步包括白色子像素。
例如，在一个示例中，该驱动方法包括：增加施加到与第一像素中的蓝色子像素连接的数据线上的数据信号，以相对增加蓝色子像素的发光强度。
例如，液晶显示装置可以包括数据驱动电路、放大器和第一数据线，第一数据线与第一像素中的蓝色子像素连接。从而，在一个示例中，该驱动方法可以包括：通过数据驱动电路驱动放大器增加施加到第一数据线上的数据信号。
例如，在另一个示例中，该驱动方法可以包括：降低施加到与第一像素中的其他子像素连接的数据线上的数据信号，以降低第一像素中的其他子像素的发光强度。
例如，液晶显示装置可以包括数据驱动电路、第一晶体管、第二晶体管、第二数据线和第三数据线，第一晶体管的输入端和输出端分别与数据驱动电路和第二数据线连接，第二晶体管的输入端和输出端分别与数据驱动电路和第三数据线连接。从而，在另一个示例中，该驱动方法可以包括：利用数据驱动电路控制第一晶体管和第二晶体管的栅极电压，以降低施加到第二数据线和第三数据线上的数据信号。也就是说，数据驱动电路可以控制第一晶体管和第二晶体管的开启程度，使其开启程度较小，从而降低流过该第一晶体管和第二晶体管的数据信号，即降低施加到第二数据线和第三数据线上的数据信号。
例如，在又一个示例中，液晶显示装置可以包括动态背光源，该动态背光源包括与第一像素中的蓝色子像素相对应的蓝光单元。从而，在又一个示例中，驱动方法可以包括：利用背光源驱动电路控制蓝光单元发光，以使得第一像素中的蓝色子像素相对于第一像素中的其他子像素具有增加的发光强度。
例如，液晶显示装置还包括数据驱动电路。数据驱动电路包括电压驱动电 路和伽马电压电路。伽马电压电路被配置为根据输入的显示数据产生灰阶电压；电压驱动电路被配置为可以相对增加传输给第一像素中的蓝色子像素的灰阶电压。从而，在又一个示例中，该驱动方法可以包括：利用电压驱动电路增加传输给第一像素中的蓝色子像素的灰阶电压，进而增加第一像素中的蓝色子像素的发光强度；或者利用电压驱动电路减小传输给第一像素中的其他子像素的灰阶电压，进而降低第一像素中的其他子像素的发光强度。
对于本公开，还有以下几点需要说明：
(1)本公开实施例附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种液晶显示装置，包括：显示面板和控制器，
    其中，所述显示面板具有显示区域，在所述显示区域中设置有排列为矩阵的多个像素，每个所述像素包括红色子像素、蓝色子像素和绿色子像素，所述显示区域包括中间区和所述中间区外侧的周边区，在所述周边区中设置有至少一个第一像素，
    所述控制器被配置为相对增加所述第一像素中的蓝色子像素的发光强度。
  2. 根据权利要求1所述的液晶显示装置，还包括：多条数据线和数据驱动电路，
    其中，所述控制器包括信号控制电路，
    所述多条数据线包括第一数据线、第二数据线和第三数据线，所述第一数据线与所述第一像素中的蓝色子像素连接，所述第二数据线与所述第一像素中的红色子像素连接，所述第三数据线与所述第一像素中的绿色子像素连接，
    所述数据驱动电路被配置为向所述多条数据线施加数据信号；
    所述信号控制电路设置在所述数据驱动电路与所述多条数据线之间，并用于控制所述多条数据线传输到所述第一像素的数据信号的大小，以调节所述第一像素中的各个子像素的发光强度。
  3. 根据权利要求2所述的液晶显示装置，其中，所述信号控制电路包括放大器，
    所述放大器的输入端与所述数据驱动电路连接，所述放大器的输出端与所述第一数据线连接，所述放大器被配置为放大施加给所述第一数据线的数据信号。
  4. 根据权利要求2所述的液晶显示装置，其中，所述信号控制电路包括第一晶体管和第二晶体管，
    所述第一晶体管的输入端和输出端分别与所述数据驱动电路和所述第二数据线连接，
    所述第二晶体管的输入端和输出端分别与所述数据驱动电路和所述第三数据线连接，
    所述第一晶体管和所述第二晶体管的控制端被配置为施加控制电压以分别调节施加给所述第二数据线和所述第三数据线的数据信号的大小。
  5. 根据权利要求2-4任一项所述的液晶显示装置，其中，在所述周边区或中间区中还设置有至少一个第二像素，
    所述多条数据线沿所述像素的列方向延伸且还包括第四数据线，所述第二像素的蓝色子像素与所述第一像素的蓝色子像素位于同一列中，所述第四数据线连接到所述第二像素中的蓝色子像素。
  6. 根据权利要求2-5任一项所述的液晶显示装置，其中，在所述周边区或中间区中还设置有至少一个第二像素，
    所述多条数据线沿所述像素的列方向延伸且还包括第五数据线和第六数据线，所述第二像素与所述第一像素位于同一列中，所述第五数据线连接到所述第二像素中的红色子像素，所述第六数据线连接到所述第二像素中的绿色子像素。
  7. 根据权利要求1-6任一项所述的液晶显示装置，其中，所述控制器连接动态背光源，
    所述动态背光源包括与所述第一像素中的蓝色子像素相对应的蓝光单元，所述蓝光单元被配置为具有相对增加的发光强度。
  8. 根据权利要求7所述的液晶显示装置，其中，所述控制器还包括背光源驱动电路，所述背光源驱动电路连接动态背光源，
    所述背光源驱动电路被配置为控制所述蓝光单元发光，以使得所述蓝光单元相对于所述动态背光源中的其他背光单元具有相对增加的发光强度。
  9. 根据权利要求1所述的液晶显示装置，其中，所述控制器包括数据驱动电路，
    所述数据驱动电路被配置为将相对增加的灰阶电压传输给所述第一像素中的蓝色子像素。
  10. 根据权利要求9所述的液晶显示装置，其中，所述数据驱动电路包括电压驱动电路和伽马电压电路，
    所述伽马电压电路被配置为根据输入的显示数据产生灰阶电压，所述电压驱动电路被配置为相对增加传输给所述第一像素中的蓝色子像素的灰阶电压。
  11. 一种用于权利要求1-10所述的液晶显示装置的驱动方法，包括：
    增加所述第一像素中的蓝色子像素的发光强度，和/或
    降低所述第一像素中的其他子像素的发光强度，
    相对于所述第一像素中的其他子像素，所述第一像素中的蓝色子像素的发 光强度被相对地增加。
  12. 根据权利要求11所述的驱动方法，其中，增加施加到与所述第一像素中的蓝色子像素连接的数据线上的数据信号。
  13. 根据权利要求11或12所述的驱动方法，其中，降低施加到与所述第一像素中的其他子像素连接的数据线上的数据信号。
  14. 根据权利要求11-13任一项所述的驱动方法，其中，在所述液晶显示装置包括动态背光源的情况下，所述动态背光源包括与所述第一像素中的蓝色子像素相对应的蓝光单元，
    所述驱动方法包括：
    控制所述蓝光单元发光，以使得所述第一像素中的蓝色子像素相对于所述第一像素中的其他子像素具有增加的发光强度。
  15. 根据权利要求11-14任一项所述的驱动方法，其中，增加传输给所述第一像素中的蓝色子像素的灰阶电压。
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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3424403B1 (en) * 2016-03-03 2024-04-24 Sony Group Corporation Medical image processing device, system, method, and program
CN106873205B (zh) 2017-04-21 2019-10-29 京东方科技集团股份有限公司 液晶显示装置及其驱动方法
CN107167976A (zh) * 2017-07-13 2017-09-15 京东方科技集团股份有限公司 一种像素电路、显示面板、显示装置及其驱动方法
CN107919099B (zh) * 2017-10-10 2019-09-17 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN107657928B (zh) * 2017-10-10 2019-09-17 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN107945751B (zh) * 2017-10-10 2019-09-17 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN107808647B (zh) 2017-10-10 2019-06-11 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN107799079B (zh) * 2017-10-10 2019-06-11 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN107808648B (zh) 2017-10-10 2019-09-17 惠科股份有限公司 液晶显示驱动方法、装置及设备
CN108227289B (zh) * 2018-01-31 2020-04-24 京东方科技集团股份有限公司 一种液晶显示面板及其制备方法、液晶显示装置
CN109298560B (zh) * 2018-11-30 2021-09-28 厦门天马微电子有限公司 显示面板和显示装置
CN109616039B (zh) * 2019-01-30 2021-10-12 京东方科技集团股份有限公司 显示面板及其发光控制电路、驱动方法、显示装置
CN110828529B (zh) * 2019-11-22 2021-05-04 昆山国显光电有限公司 显示装置及其显示面板
CN113703214B (zh) 2020-05-20 2022-11-11 福州京东方光电科技有限公司 一种显示面板及显示装置
CN112415754B (zh) * 2020-12-14 2022-11-11 Oppo广东移动通信有限公司 显示面板及其显示装置、头戴显示设备、显示均匀性校准方法
WO2022226982A1 (zh) * 2021-04-30 2022-11-03 京东方科技集团股份有限公司 一种显示基板及显示装置
CN114242007B (zh) * 2021-12-10 2023-06-30 重庆惠科金渝光电科技有限公司 像素驱动方法以及显示设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744032B1 (en) * 2001-10-17 2004-06-01 Ess Technology, Inc. Arrangement of microlenses in a solid-state image sensor for improving signal to noise ratio
CN101083774A (zh) * 2006-05-31 2007-12-05 深圳Tcl工业研究院有限公司 一种色温动态调整方法
CN102937763A (zh) * 2012-11-16 2013-02-20 京东方科技集团股份有限公司 一种像素电极结构、阵列基板及显示装置
CN103578444A (zh) * 2013-08-06 2014-02-12 友达光电股份有限公司 像素驱动方法及液晶像素矩阵
CN106328094A (zh) * 2016-11-18 2017-01-11 厦门天马微电子有限公司 一种液晶显示设备的显示控制方法
CN106873205A (zh) * 2017-04-21 2017-06-20 京东方科技集团股份有限公司 液晶显示装置及其驱动方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5079454B2 (ja) * 2007-10-31 2012-11-21 株式会社ジャパンディスプレイウェスト 表示装置
US9583034B2 (en) 2010-10-15 2017-02-28 Lg Display Co., Ltd. Subpixel arrangement structure for display device
US20130321497A1 (en) * 2012-06-05 2013-12-05 Shenzhen China Star Optoelectronics Technology Co., Ltd. Method of Signal Compensation, Transformation Circuit in Liquid Crystal Panel, and Liquid Crystal Display Device
CN102682732B (zh) * 2012-06-05 2014-04-02 深圳市华星光电技术有限公司 液晶面板中信号补偿的方法、转换电路以及液晶显示装置
US9530373B2 (en) * 2013-06-25 2016-12-27 Samsung Display Co., Ltd. Method of driving a display panel, display panel driving apparatus for performing the method and display apparatus having the display panel driving apparatus
KR102303604B1 (ko) * 2015-02-17 2021-09-17 삼성디스플레이 주식회사 액정 표시 장치
CN105204213A (zh) * 2015-11-06 2015-12-30 京东方科技集团股份有限公司 显示面板及其制作方法、显示装置
CN106205506B (zh) * 2016-08-29 2019-07-09 青岛海信电器股份有限公司 减少液晶显示边缘偏色的方法及液晶显示装置
KR102588126B1 (ko) * 2016-11-01 2023-10-13 삼성전자주식회사 디스플레이 구동 회로 및 이를 포함하는 디스플레이 구동 시스템

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6744032B1 (en) * 2001-10-17 2004-06-01 Ess Technology, Inc. Arrangement of microlenses in a solid-state image sensor for improving signal to noise ratio
CN101083774A (zh) * 2006-05-31 2007-12-05 深圳Tcl工业研究院有限公司 一种色温动态调整方法
CN102937763A (zh) * 2012-11-16 2013-02-20 京东方科技集团股份有限公司 一种像素电极结构、阵列基板及显示装置
CN103578444A (zh) * 2013-08-06 2014-02-12 友达光电股份有限公司 像素驱动方法及液晶像素矩阵
CN106328094A (zh) * 2016-11-18 2017-01-11 厦门天马微电子有限公司 一种液晶显示设备的显示控制方法
CN106873205A (zh) * 2017-04-21 2017-06-20 京东方科技集团股份有限公司 液晶显示装置及其驱动方法

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