CN102043284B

CN102043284B - Liquid crystal display realizing high-precision display

Info

Publication number: CN102043284B
Application number: CN2011100266232A
Authority: CN
Inventors: 谢凡; 胡君文; 李林; 何基强; 曾郁青; 张新华
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2011-01-25
Filing date: 2011-01-25
Publication date: 2012-06-13
Anticipated expiration: 2031-01-25
Also published as: CN102043284A

Abstract

The invention discloses a liquid crystal display realizing high-precision display, comprising an upper color filter and a lower thin film transistor (TFT) matrix. Each pixel in the TFT matrix is equally divided into a plurality of pixel subunits, wherein, each pixel subunit comprises a row of red photic zones, a row of green photic zones and a row of blue photic zones; the pixel subunits in each pixel are four, and each pixel subunit is in a rectangle shape, each RED dada line simultaneously drives a first row of RED translucidus region and a fourth row of RED translucidus region, each GREEN data line simultaneously drives a second row of GREEN translucidus region and a fifth row of GREEN translucidus region, each BLUE data line simultaneously drives a third row of BLUE translucidus region and a sixth BLUE translucidus region. Relative to the traditional liquid crystal display, the liquid crystal display disclosed by the invention can realize high resolution display by adopting low microprogrammed control unit (MCU), thus not only promoting the quality of pictures, but also saving the cost of the MCU, and reducing the cost of the whole system scheme.

Description

A kind of LCD of realizing high meticulous demonstration

Technical field

The present invention relates to field of liquid crystal display, is a kind of LCD of under the low resolution drive condition, realizing high meticulous demonstration specifically.

Background technology

(Thin Film Transistor has increasing use during TFT) LCD is lived in modern times, for example mobile phone display screen to thin film transistor (TFT); Note Book display screen; MP3, MP4 display screen, the GPS display screen, LCD-TV display screen etc. has all used LCD.Along with the development of TFT-LCD technology, people are also increasingly high to its performance demands, and demand is also various all the more, just hope to improve the precision of display frame like some clients, make image energy show with high resolving power.In fact, the market demand that mobile phone settles becomes QVGA by QQVGA before, has developed towards WQVGA, VGA resolution again at present.Existing high resolving power mobile phone can be described as innumerable, and its largest benefit is that the content held of picture is more, and screen is finer and smoother and gorgeous.When people have been accustomed to the QVGA screen, all can can't help sighing with feeling the fine and smooth and exquisite of its image quality when seeing the screen such as one type of WVGA.

The approach that improves image quality is to improve PPI (the Pixel Per Inch of display; Refer to the expressed number of pixels of per inch in the image), resolution is high more, and image is also just careful more and accurate; And the area size of each pixel is determined by production technology; Technology is high more, and each elemental area is more little, just can hold more pixel on the square inch screen.But limited by technology and cost, can not infinitely improve PPI, therefore need consider to improve image quality from other approach.

Referring to Fig. 1, that each pixel in the available liquid crystal display comprises is red/green/blue (RED/GREEN/BLUE) three row photic zones, every row photic zone forms a subpixels.Therefore, in fact each pixel of display comprises RED/GREEN/BLUE three subpixels, and each sub-pixel wherein need carry out respective drive, with the display requirement of realizing being scheduled to.For high-resolution display, generally need drive, thereby cost is higher with high speed MCU.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of LCD of realizing high meticulous demonstration, under the low resolution drive condition, can realize the high resolving power display quality.

For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of LCD of realizing high meticulous demonstration; Comprise enamel optical filter and following sheet TFT matrix; Each pixel in the said TFT matrix is divided into a plurality of pixel sub unit, wherein comprises a row RED photic zone, a row GREEN photic zone and a row BLUE photic zone in each pixel sub unit; Pixel sub unit in each pixel is 4; Wherein each pixel sub unit is shaped as rectangle; And each RED data line drives the first row RED photic zone and the 4th row RED photic zone simultaneously; Each GREEN data line drive simultaneously secondary series GREEN photic zone with the 5th row GREEN photic zone, each BLUE data line drives the 3rd row BLUE photic zone simultaneously and is listed as the BLUE photic zone with the 6th.

More excellent ground, the adjacent two row pixel sub unit up and down of each scanning line driving.

More excellent ground, each sweep trace drives the one-row pixels subelement respectively, and the sweep trace that drives up pixel sub unit merges outside the neighboring area of each pixel with the sweep trace that drives descending pixel sub unit.

More excellent ground, the width of said RED photic zone, said GREEN photic zone and said BLUE photic zone equates.

Compared with prior art; The present invention is divided into a plurality of pixel sub unit with each pixel; Wherein comprise the RED/GREEN/BLUE photic zone in each pixel sub unit; Can realize that like this driving high definition under the low resolution condition shows, thereby optimize the display frame effect, promote the display frame quality.Simultaneously, adopt the MCU data of low rate to realize that high resolving power shows, save the MCU expense, reduce total system scheme cost.

Description of drawings

Fig. 1 is the synoptic diagram of single pixel in the available liquid crystal display viewing area;

Fig. 2 is the synoptic diagram of single pixel in the liquid crystal display displays of the present invention district;

Fig. 3 is first kind of driving circuit synoptic diagram of single pixel shown in Figure 2;

Fig. 4 is second kind of driving circuit synoptic diagram of single pixel shown in Figure 2;

Fig. 5 is the third driving circuit synoptic diagram of single pixel shown in Figure 2.

Embodiment

Core of the present invention is for to be subdivided into a plurality of photic zones with single pixel region, thereby the high resolving power that is implemented under the low resolution drive condition shows.

In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.

Referring to Fig. 2, represent single pixel in the liquid crystal display displays of the present invention district.The LCD of the embodiment of the invention comprises enamel optical filter and following sheet TFT matrix, wherein descends CF (colorized optical filtering) design of sheet TFT matrix to be:

(1) photic zone changes 12 photic zones into by 3 in each pixel, each elemental area be contracted to former pixel faces long-pending 1/4;

(2) in each pixel, RGB colored ink live width is contracted to 1/2, is subdivided into 6 row by 3 row and arranges.

Thus, TFT matrix viewing area and traditional design proposal relatively can be under identical drive condition be promoted to 4 times with the PPI of viewing area, thereby improve resolution, make display frame meticulousr.

Referring to Fig. 3～Fig. 5, the design of TFTARRAY of the present invention (tft array) is:

(1) sweep trace 1 can drive adjacent two row up and down by each row; Also can drive, remerge into delegation then in the neighboring area of each pixel and drive (as shown in Figure 3) by each row.

(2) RED data line 2 can drive first row and the 4th row simultaneously; Secondary series and shared same the GREEN data line 3 of the 5th row; The 3rd row and the shared BLUE data line 4 of the 6th row; By that analogy.Its connected mode sees for details referring to Fig. 3～circuit equivalent figure shown in Figure 5.Among Fig. 3～Fig. 5, also comprise elements such as removing hole 4, storage capacitors 6 and liquid crystal capacitance 7, the effect of these elements is identical with prior art, repeats no more at this.

In the foregoing description, each pixel is divided into 4 pixel sub unit, wherein comprises the RED/GREEN/BLUE photic zone in each pixel sub unit.In fact also can adopt other bisecting method, more excellent embodiment is to be divided into 2 integral multiple, and wherein each pixel sub unit is shaped as rectangle; Preferred embodiment be to be divided into 4 integral multiple, wherein each pixel sub unit be shaped as square, to guarantee the resolution equilibrium of horizontal direction and vertical direction.

The present invention can realize the demonstration of the driving high definition of low resolution with respect to traditional LCD, has optimized the display frame effect, promotes the display frame quality.Owing to adopt the MCU data of low rate to realize that high resolving power shows, thereby saved the MCU expense, reduce total system scheme cost.

More than the present invention has been carried out detailed introduction, use concrete example in the literary composition principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims

1. LCD of realizing high meticulous demonstration; Comprise enamel optical filter and following sheet TFT matrix; It is characterized in that; Each pixel in the said TFT matrix is divided into a plurality of pixel sub unit, wherein comprises a row RED photic zone, a row GREEN photic zone and a row BLUE photic zone in each pixel sub unit; Pixel sub unit in each pixel is 4; Wherein each pixel sub unit is shaped as rectangle; And each RED data line drives the first row RED photic zone and the 4th row RED photic zone simultaneously; Each GREEN data line drives secondary series GREEN photic zone and the 5th row GREEN photic zone simultaneously, and each BLUE data line drives the 3rd row BLUE photic zone and the 6th row BLUE photic zone simultaneously.

2. the LCD of the high meticulous demonstration of realization as claimed in claim 1 is characterized in that, the adjacent two row pixel sub unit up and down of each scanning line driving.

3. the LCD of the high meticulous demonstration of realization as claimed in claim 1; It is characterized in that; Each sweep trace drives the one-row pixels subelement respectively, and the sweep trace that drives up pixel sub unit merges outside the neighboring area of each pixel with the sweep trace that drives descending pixel sub unit.

4. like the LCD of the high meticulous demonstration of each described realization of claim 1～3, it is characterized in that the width of said RED photic zone, said GREEN photic zone and said BLUE photic zone equates.