DISPLAY PANEL

• US 20160307517A1
• Filed: 06/28/2016
• Published: 10/20/2016
• Est. Priority Date: 05/31/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Group)
• Original Assignee: Samsung Display Company Limited (Samsung Group)
• Inventors: PARK, Kee-Bum, KIM, Hyuk-Jin, NA, Byoung Sun
• Granted Patent: US 10,783,833 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2300/0413 Details of dummy pixels or dummy lines in flat panels
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• 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 2310/0267 Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
• CPC Class Codes: G09G 2310/0281 Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
• CPC Class Codes: G09G 2310/0286 Details of a shift registers arranged for use in a driving circuit
• CPC Class Codes: G09G 2310/0289 Details of voltage level shifters arranged for use in a driving circuit
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 2320/0223 Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
• CPC Class Codes: G09G 3/20 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
• CPC Class Codes: G09G 3/3266 Details of drivers for scan electrodes
• CPC Class Codes: G09G 3/3275 Details of drivers for data electrodes
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: G09G 3/3674 Details of drivers for scan electrodes
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

A display device includes a plurality of pixels disposed in an display area, and a pixel driver connected to at least two of the pixels, wherein the pixel driver drives the at least two pixels, where a portion of the pixel driver is disposed in the display area, and the display device includes the display area, on which an image is displayed, and a non-display area, on which no image is displayed.

Claims

1. A display device comprising:

a substrate;

a plurality of data lines on the substrate;

a plurality of gate lines on the substrate intersecting the plurality of data lines;

a plurality of pixels defined by the plurality of data lines and the plurality of gate lines,

a pixel driver on the substrate and connected to at least two of the pixels;

wherein the display device includes the display area, on which an image is displayed, and a non-display area, on which no image is displayed, the display area and the non-display area are located on the substrate,

wherein the pixel driver comprises;

a first portion disposed in the non-display area; and

a second portion electrically connected to the first portion and disposed between the plurality of pixels in the display area.

2. The display device of claim 1, wherein the second portion of the pixel driver extends along one of the plurality of gate lines.

3. The display device of claim 1, wherein the second portion of the pixel driver extends along at least two of the plurality of gate lines.

4. The display device of claim 1, wherein each of the plurality of pixels corresponds to one of a plurality of colors, and

the second portion of the pixel driver is disposed between adjacent pixels corresponds to one of a plurality of colors.

5. The display device of claim 1, wherein each of the plurality of pixels comprises:

a switching unit connected to the pixel driver, wherein the switching unit is turned on and off based on the signal from the pixel driver or selectively transmits the signal from the pixel driver; and

a display unit connected to the switching unit.

6. The display device of claim 5, wherein the switching unit comprises a thin film transistor including a control terminal, an input terminal and an output terminal, and

the pixel driver comprises a gate driver configured to generate a gate signal applied to the control terminal of the thin film transistor through at least one gate line of the plurality of gate lines.

7. The display device of claim 6, wherein the gate driver comprises a plurality of stages connected to each other,

each of the plurality of stages is connected to a corresponding group of pixels of the plurality of pixels,

each of the plurality of stages comprises:

a first substage disposed in the non-display area; and

a second substage that is connected to the first substage and disposed in the display area.

8. The display device of claim 7, wherein the second substage comprises a plurality of transistors, and

a number of the plurality of transistors is less than or equal to a number of pixels of the corresponding group of pixels.

9. The display device of claim 7, wherein a stage of the plurality of stages comprises:

an input unit configured to receive a gate signal of a previous stage;

a pull up unit configured to output a gate signal thereof;

a carry signal generating unit configured to output a carry signal to the previous stage or a subsequent stage;

an inverting unit configured to output a signal having a phase reverse to the gate signal thereof; and

a pull down unit connected to the input unit, the pull up unit, the carry signal generating unit and the inverting unit, wherein the pull down unit is configured to lower a potential of a node therein,

wherein each of the input unit, the pull up unit, the carry signal generating unit, the inverting unit and the pull down unit includes a transistor, and

the second substage comprises transistors of the pull down unit, the pull up unit and the carry signal generating unit.

10. The display device of claim 9, wherein the transistors in the second substage is configured to change the gate signal thereof from a higher voltage to a lower voltage.

11. The display device of claim 1, wherein the second portion of the pixel driver comprises at least a portion of an active element.

12. The display device of claim 1, further comprising:

a light blocking member covering the non-display area.

13. The display device of claim 1, wherein a pixel adjacent to the pixel driver is smaller in size than a pixel, which is not adjacent to the pixel driver.