Liquid crystal display panel and display device having liquid crystal display panel

• US 10,460,688 B2
• Filed: 11/18/2016
• Issued: 10/29/2019
• Est. Priority Date: 10/31/2016
• Status: Active Grant

• Current Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Xing, Zhenzhou, Huang, Chun-hung
• Primary Examiner(s): Yang, Nan-Ying
• Application Number:
  US15/326,547
• Publication Number:
  US 20180211622A1
• Time in Patent Office: 1,075 Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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 2310/0205 Simultaneous scanning of several lines in flat panels
• CPC Class Codes: G09G 2310/0291 Details of output amplifiers or buffers arranged for use in a driving circuit
• CPC Class Codes: G09G 2310/0297 Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3677 suitable for active matrices only
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

The liquid crystal display panel comprises: data line pairs, comprising a first data line and a second data line located side by side; scan lines, comprising a first scan line and a second scan line which are perpendicular with the data line pairs and alternatively arranged; a pixel unit array, comprising pixel units, respectively located in regions formed by arrangement of the data line pairs and the scan lines; wherein a scan drive signal received by the first and second scan lines scan the two rows of pixel units coupled to each other at the same time, and the first and second scan lines are respectively coupled to at least two pixel units in a single row of the pixel units, and drives the pixel units coupled to each data line in time division to charge the pixel units coupled to the same data line in time division.

Claims

1. A liquid crystal display panel, wherein the liquid crystal display panel comprises:

a plurality of data line pairs, each set of data line pair comprising a first data line and a second data line which are located side by side;

a plurality of scan lines, comprising a first scan line and a second scan line which are perpendicular with the plurality of data line pairs and alternatively arranged;

a pixel unit array, comprising a plurality of pixel units, which are respectively located in regions formed by arrangement of the plurality of data line pairs and the plurality of scan lines, and each row of pixel units being coupled to a first scan line and a second scan line;

wherein a scan drive signal received by the first scan line and the second scan line scan the two rows of pixel units coupled to each other at the same time, and the first scan line and the second scan line are respectively coupled to at least two pixel units in a single row of the pixel unit, and drives the pixel units coupled to each data line in time division to charge the pixel units coupled to the same data line in time division;

wherein the first data line and the second data line transmit data signals with positive polarity or negative polarity to the coupled pixel units, and the polarities of the entire column of the pixel unit array are inverted, and the pixel units are coupled to the first data line or the second data line which can provide corresponding polarity signals according to self polarities to make the first data line or the second data line be coupled to a plurality of pixel units of the same row at the same time

wherein in the pixel unit, the polarities of the pixels of the entire column are reversed in order of positive, negative, negative, positive, negative, positive, positive, negative.

2. The liquid crystal display panel according to claim 1, wherein the first scan line and the second scan line are separated with a row of pixel units, and each of the first scan lines is arranged to be adjacent to one of the second scan lines.

3. The liquid crystal display panel according to claim 1, wherein the first scan line and the second scan line are separated with k rows of pixel units, and k of the first scan lines are adjacent, and k of the second scan lines are adjacent, and 2≤

k≤

n/2 is satisfied, wherein n is a row number of the pixel unit array, and k and n are positive integers, and n is a positive integer larger than or equal to 4.

4. The liquid crystal display panel according to claim 1, wherein the pixel unit array is formed with the pixel units of red (R), green (G), blue (B), white (W), four colors repeatedly aligned along a row direction, and each row of pixel units employs the same manner to be circularly aligned, or alignments of all rows of pixel units are not exactly the same.

5. The liquid crystal display panel according to claim 4, wherein pixel alignments in every two adjacent rows of pixel units in the pixel unit array are different, and one row of pixel units employs a RGBW manner to be circularly aligned and the other row of pixel units employs a manner different from the RGBW manner to be circularly aligned.

6. The liquid crystal display panel according to claim 2, wherein the pixel unit array is formed with the pixel units of red (R), green (G), blue (B), white (W), four colors repeatedly aligned along a row direction, and each row of pixel units employs the same manner to be circularly aligned, or alignments of all rows of pixel units are not exactly the same.

7. A liquid crystal display device, wherein the liquid crystal display device comprises:

a liquid crystal display panel, comprising;

a plurality of data line pairs, each set of data line pair comprising a first data line and a second data line which are located side by side;

a plurality of scan lines, comprising a first scan line and a second scan line which are perpendicular with the plurality of data line pairs and alternatively arranged; and

a pixel unit array, comprising a plurality of pixel units, which are respectively located in regions formed by arrangement of the plurality of data line pairs and the plurality of scan lines, and each row of pixel units being coupled to a first scan line and a second scan line;

a scan drive unit, employed to provide a scan drive signal to the first scan line and the second scan line; and

a data drive unit, employed to provide a data drive signal to a first data line and a second data line;

wherein a scan drive signal received by the first scan line and the second scan line scan the two rows of pixel units coupled to each other at the same time, and the first scan line and the second scan line are respectively coupled to at least two pixel units in a single row of the pixel unit, and drives the pixel units coupled to each data line in time division to charge the pixel units coupled to the same data line in time division;

wherein the first data line and the second data line transmit data signals with positive polarity or negative polarity to the coupled pixel units, and the polarities of the entire column of the pixel unit array are inverted, and the pixel units are coupled to the first data line or the second data line which can provide corresponding polarity signals according to self polarities to make the first data line or the second data line be coupled to a plurality of pixel units of the same row at the same time; and

wherein in the pixel unit, the polarities of the pixels of the entire column are reversed in order of positive, negative, negative, positive, negative, positive, positive, negative.

8. The liquid crystal display device according to claim 7, wherein the liquid crystal display device further comprises:

a touch control module, embedded inside the liquid crystal display panel; and

a sequence control unit, electrically coupled to the scan drive unit and the data drive unit, and employed to control the liquid crystal display panel realizing touch control function in a touch panel term and to control the display panel showing images in a display term.

9. The liquid crystal display device according to claim 7, wherein the first scan line and the second scan line are separated with a row of pixel units, and each of the first scan lines is arranged to be adjacent to one of the second scan lines.

10. The liquid crystal display device according to claim 7, wherein the first scan line and the second scan line are separated with k rows of pixel units, and k of the first scan lines are adjacent, and k of the second scan lines are adjacent, and 2≤

k≤

n/2 is satisfied, wherein n is a row number of the pixel unit array, and k and n are positive integers, and n is a positive integer larger than or equal to 4.

11. The liquid crystal display device according to claim 7, wherein the pixel unit array is formed with the pixel units of red (R), green (G), blue (B), white (W), four colors repeatedly aligned along a row direction, and each row of pixel units employs the same manner to be circularly aligned, or alignments of all rows of pixel units are not exactly the same.

12. The liquid crystal display device according to claim 11, wherein pixel alignments in every two adjacent rows of pixel units in the pixel unit array are different, and one row of pixel units employs a RGBW manner to be circularly aligned and the other row of pixel units employs a manner different from the RGBW manner to be circularly aligned.

13. The liquid crystal display device according to claim 8, wherein the pixel unit array is formed with the pixel units of red (R), green (G), blue (B), white (W), four colors repeatedly aligned along a row direction, and each row of pixel units employs the same manner to be circularly aligned, or alignments of all rows of pixel units are not exactly the same.