# US 10,319,275 B2 · Display panel and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,275 B2 - Document ID: US10319275B2 - Status: Granted - Kind: B2 - Application number: 15/429,107 - Filed: 2017-02-09 - Published: 2017-06-08 - Granted: 2019-06-11 - Earliest claimed: 2016-07-29 - Assignees: Shanghai AVIC OPTO Electronics Co., Ltd.; Tianma Micro-Electronics Co., Ltd. - Applicants: Shanghai AVIC OPTO Electronics Co., Ltd.; Tianma Micro-Electronics Co., Ltd. - Inventors: Huijun Jin; Wantong Shao - Web page: https://patentgrep.com/patent/US10319275B2 ## CPC - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2300/0465: Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract The present disclosure provides a display panel and a display device. The display panel includes a plurality of sub-pixels divided into sub-pixels of a first type, sub-pixels of a second type, sub-pixels of a third type and sub-pixels of a fourth type, each type of sub-pixels being configured to display a different color. An area of an aperture region of any of the fourth-sub-pixel type is smaller than an area of an aperture region of each sub-pixel of the first-sub-pixel type, the second-sub-pixel type and the third-sub-pixel type. Each pixel group also includes at least two display elements. Each of the display elements is associated with one of the sub-pixels in the pixel group, and the at least two display elements are disposed within the non-aperture region of the fourth sub-pixel type. ## Claims ### Claim 1 A display panel, comprising: a plurality of sub-pixels formed by a plurality of scan lines intersecting a plurality of data lines, the plurality of sub-pixels being arranged in a matrix, each of the sub-pixels comprising a pixel electrode, the plurality of sub-pixels being divided into a first sub-pixel type, a second sub-pixel type, a third sub-pixel type and a fourth sub-pixel type, each type of sub-pixels being configured to display a different color, wherein, each sub-pixel of the first-sub-pixel type, the second-sub-pixel type, the third-sub-pixel type and the fourth-sub-pixel type comprises an aperture region allowing light to pass through and a non-aperture region where light cannot pass through, an area of an aperture region of each sub-pixel of the fourth-sub-pixel types is smaller than an area of an aperture region of any sub-pixel of the first-sub-pixel type, the second-sub-pixel type and the third-sub-pixel type, the plurality of sub-pixels are divided into a plurality of pixel groups, each of the pixel groups comprises four of the sub-pixels, one of the four sub-pixels in each of the pixel groups is the fourth sub-pixel type, each of the pixel groups further comprises at least two display elements, each of the display elements is associated with one of the sub-pixels in the pixel group, and the at least two display elements are disposed within the non-aperture region of the fourth sub-pixel type, and each pixel group has a T shape in which a third-type sub-pixel and a first-type sub-pixel are positioned adjacent to a fourth-type sub-pixel in a row direction, a second-type sub-pixel is positioned adjacent to the fourth-type sub-pixel in a column direction, and four thin film transistors for respectively driving the four sub-pixels are disposed in the non-aperture region of the fourth-type sub-pixel, sources and gates of the four thin film transistors are connected to various data lines and scan lines, and drain electrodes of the four thin film transistors are connected to pixel electrodes of the four sub-pixels respectively, wherein the gates of the thin film transistors are in a hollow squared shape, wherein heads of the T shapes of adjacent pixel groups are orientated towards opposite directions; and wherein in each pixel group, each of the display elements is a data-line leading hole; and the source electrode of the thin film transistor is electrically connected to one data line through the data-line leading hole. ### Claim 2 (depends on 1) The display panel of claim 1, wherein the area of the aperture region of each of the fourth-sub-pixel type is larger than or equal to one third of an average area of the aperture regions of a sub-pixel of the first sub-pixel type, a sub-pixel of the second sub-pixel type and a sub-pixel of the third sub-pixel type. ### Claim 3 (depends on 1) The display panel of claim 1, wherein the sub-pixels of the first sub-pixel types, the second sub-pixel type and the third sub-pixel type are respectively one distinct type of red sub-pixels, green sub-pixels and blue sub-pixels, and the sub-pixels of the fourth-sub-pixel type are white sub-pixels or yellow sub-pixels. ### Claim 4 (depends on 1) The display panel of claim 1, wherein the sub-pixels of the fourth-sub-pixel type are disposed as spaced apart from one another by one or more sub-pixels of other types in a row direction and in a column direction of the matrix. ### Claim 5 (depends on 4) The display panel of claim 4, wherein in the row direction of the matrix, a sub-pixel of the first sub-pixel type, one sub-pixel of the second sub-pixel type, one sub-pixel of the third sub-pixel type and a sub-pixel of the fourth sub-pixel type are arranged alternately in such order, sub-pixels of the same type in two adjacent rows are misaligned with each other by two sub-pixels. ### Claim 6 (depends on 1) The display panel of claim 1, wherein in each pixel group, each of the display elements is a pixel-electrode via hole; and the pixel electrode of each sub-pixel in the pixel group is electrically connected to the drain electrode of a thin film transistor through the pixel-electrode via hole. ### Claim 7 (depends on 1) The display panel of claim 1, wherein each of the display elements is a spacer. ### Claim 8 (depends on 7) The display panel of claim 7, wherein four spacers are correspondingly disposed in the non-aperture region of each sub-pixel of the fourth sub-pixel type, and the four spacers within the non-aperture region of each sub-pixel of the fourth sub-pixel type are disposed adjacent to intersection points of the scan lines and the data lines forming the fourth sub-pixel type. ### Claim 9 (depends on 1) The display panel of claim 1, wherein the width-length ratio of each of the sub-pixels is 1:3. ### Claim 10 A display device, comprising: a display panel, comprising: a plurality of sub-pixels formed by a plurality of scan lines intersecting a plurality of data lines, the plurality of sub-pixels being arranged in a matrix, each of the sub-pixels comprising a pixel electrode, the plurality of sub-pixels being divided into a first sub-pixel type, a second sub-pixel type, a third sub-pixel type and a fourth sub-pixel type, each type of sub-pixels being configured to display a different color, wherein, each sub-pixel of the first-sub-pixel type, the second-sub-pixel type, the third-sub-pixel type and the fourth-sub-pixel type comprises an aperture region allowing light to pass through and a non-aperture region where light cannot pass through, an area of an aperture region of each sub-pixel of the fourth-sub-pixel types is smaller than an area of an aperture region of any sub-pixel of the first-sub-pixel type, the second-sub-pixel type and the third-sub-pixel type, the plurality of sub-pixels are divided into a plurality of pixel groups, each of the pixel groups comprises four of the sub-pixels, one of the four sub-pixels in each of the pixel groups is the fourth sub-pixel type, each of the pixel groups further comprises at least two display elements, each of the display elements is associated with one of the sub-pixels in the pixel group, and the at least two display elements are disposed within the non-aperture region of the fourth sub-pixel type, and each pixel group has a T shape in which a third-type sub-pixel and a first-type sub-pixel are positioned adjacent to a fourth-type sub-pixel in a row direction, a second-type sub-pixel is positioned adjacent to the fourth-type sub-pixel in a column direction, and four thin film transistors for respectively driving the four sub-pixels are disposed in the non-aperture region of the fourth-type sub-pixel, sources and gates of the four thin film transistors are connected to various data lines and scan lines, and drain electrodes of the four thin film transistors are connected to pixel electrodes of the four sub-pixels respectively, wherein the gates of the thin film transistors are in a hollow squared shape, wherein heads of the T shapes of adjacent pixel groups are orientated towards opposite directions; and wherein in each pixel group, each of the display elements is a data-line leading hole; and the source electrode of the thin film transistor is electrically connected to one data line through the data-line leading hole. ### Claim 11 (depends on 10) The display device of claim 10, wherein the area of the aperture region of each sub-pixel of the fourth-sub-pixel type is larger than or equal to one third of an average area of the aperture regions of a sub-pixel of the first-type sub-pixel, a sub-pixel of the second sub-pixel type and a sub-pixel of the third sub-pixel type. ### Claim 12 (depends on 10) The display device of claim 10, wherein the first sub-pixel type, the second sub-pixel type and the third sub-pixel type are respectively one distinct type of red sub-pixels, green sub-pixels and blue sub-pixels, and the fourth-sub-pixel type are white sub-pixels or yellow sub-pixels. ### Claim 13 (depends on 10) The display device of claim 10, wherein the fourth-sub-pixel type are disposed as spaced apart from one another by one or more sub-pixels of other types in a row direction and in a column direction. ### Claim 14 (depends on 13) The display device of claim 13, wherein in the row direction of the matrix, a sub-pixel of the first-type sub-pixel, a sub-pixel of the second sub-pixel type, a sub-pixel of the third sub-pixel type and a sub-pixel of the fourth sub-pixel type are arranged alternately in a following order: sub-pixels of the same type in two adjacent rows are misaligned with each other by two sub-pixels.