Display device and electronic apparatus

• US 9,626,923 B2
• Filed: 01/17/2014
• Issued: 04/18/2017
• Est. Priority Date: 01/23/2013
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: Yamaguchi, Hidemasa, Kabe, Masaaki
• Primary Examiner(s): Spar, Ilana
• Assistant Examiner(s): Rayan, Mihir
• Application Number:
  US14/157,942
• Publication Number:
  US 20140204072A1
• Time in Patent Office: 1,187 Days
• CPC Class Codes: G02F 1/136213 Storage capacitors associated with the pixel electrode
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0491 Use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or electrically controlled bi-refringence [ECB] for controlling the color
• CPC Class Codes: G09G 2300/0495 Use of transitions between isotropic and anisotropic phases in liquid crystals, by voltage controlled deformation of the liquid crystal molecules, as opposed to merely changing the orientation of the molecules as in, e.g. twisted-nematic [TN], vertical-aligned [VA], cholesteric, in-plane, or bi-refringent liquid crystals
• CPC Class Codes: G09G 2320/0209 Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
• CPC Class Codes: G09G 2320/0276 for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
• CPC Class Codes: G09G 2340/06 Colour space transformation
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607

Abstract

According to an aspect, a display device includes an image display panel, data lines, and scan lines. The image display panel includes arrays of pixels including a plurality of sub-pixels. The arrays of pixels include cyclically arranged columns of first columns each of which includes first sub-pixels, second columns that include second sub-pixels, and third columns. Third sub-pixels and fourth sub-pixels are alternately arranged in the third columns in the direction along the third columns, and are alternately arranged in a direction along the row in the same row of the third columns. Each of the scan lines is coupled to either of the third sub-pixels adjacent thereto or the fourth sub-pixels adjacent thereto, as sub-pixels to be selected thereby.

Claims

1. A display device comprising:

an image display panel that includes arrays of pixels including a plurality of sub-pixels, the arrays of pixels including cyclically arranged columns of first columns that include first sub-pixels, second columns each of which is arranged next to the corresponding first column and third columns each of which is arranged next to the corresponding second column;

a display function layer that has an image display function of displaying an image on the image display panel;

a plurality of data lines each coupled to one of the first columns, the second columns, and the third columns;

a control unit that drives the display function layer based on image signals by a column inversion driving method in which voltage applied to the data lines are different between the adjacent sub-pixels or between the adjacent pixels, and polarities of the applied voltages are inverted at a predetermined period; and

a plurality of scan lines with which the control unit sequentially selects each row of the sub-pixels, wherein

second sub-pixels and fifth sub-pixels are alternately arranged in the second columns in a direction along the second columns, and the second sub-pixels and the fifth sub-pixels corresponding to the second columns are alternately arranged in a direction along each row,

third sub-pixels and fourth sub-pixels are alternately arranged in the third columns in a direction along the third columns, and the third sub-pixels and the fourth sub-pixels corresponding to the third columns are alternately arranged in a direction along each row,

each of the scan lines is coupled to the first sub-pixels of a same row,

each of the scan lines is coupled to the fifth sub-pixels of the second columns and the third sub-pixels of the third columns, or the second sub-pixels of the second columns and the fourth sub-pixels of the third columns, the fifth sub-pixels and the third sub-pixels being the sub-pixels of two rows each adjacent to the scan line, and the second sub-pixels and the fourth sub-pixels being the sub-pixels of two rows each adjacent to the scan line, and

the sub-pixels of the second columns or the third columns in a same row are coupled to alternately different scan lines both of which are adjacent to the sub-pixels of the same row.

2. The display device according to claim 1, wherein

the control unit transmits image signals to the sub-pixels of every other one of the second columns arranged in the direction along each row and the sub-pixels of every other one of the third columns arranged in the direction along each row so as to shift the image signals from the other sub-pixels in the same row by one horizontal pixel.

3. The display device according to claim 1, further comprising

a touch detection device attached or integrated on the image display panel, the touch detection device being capable of detecting an external approaching object that externally comes close.

4. An electronic apparatus including a display device, the display device comprising:

an image display panel that includes arrays of pixels including a plurality of sub-pixels, the arrays of pixels including cyclically arranged columns of first columns each of which includes first sub-pixels, second columns each of which is arranged next to the corresponding first column and third columns each of which is arranged next to the corresponding second column;

a display function layer that has an image display function of displaying an image on the image display panel;

a plurality of data lines each coupled to one of the first columns, the second columns, and the third columns;

a control unit that drives the display function layer based on image signals by a column inversion driving method in which voltage applied to the data lines are different between the adjacent sub-pixels or between the adjacent pixels, and polarities of the applied voltages are inverted at a predetermined period; and

a plurality of scan lines with which the control unit sequentially selects each row of the sub-pixels, wherein

second sub-pixels and fifth sub-pixels are alternately arranged in the second columns in a direction along the second columns, and the second sub-pixels and the fifth sub-pixels corresponding to the second columns are alternately arranged in a direction along each row,

third sub-pixels and fourth sub-pixels are alternately arranged in the third columns in a direction along the third columns, and the third sub-pixels and the fourth sub-pixels corresponding to the third columns are alternately arranged in a direction along each row,

each of the scan lines is coupled to the first sub-pixels of a same row,

each of the scan lines is coupled to the fifth sub-pixels of the second columns and the third sub-pixels of the third columns, or the second sub-pixels of the second columns and the fourth sub-pixels of the third columns, the fifth sub-pixels and the third sub-pixels being the sub-pixels of two rows each adjacent to the scan line, and the second sub-pixels and the fourth sub-pixels being the sub-pixels of two rows each adjacent to the scan line, and

the sub-pixels of the second columns or the third columns in a same row are coupled to alternately different scan lines both of which are adjacent to the sub-pixels of the same row.